HIGHWOODS PROPERTIES, INC., 10-K filed on 2/5/2019
Annual Report
v3.10.0.1
Document and Entity Information - USD ($)
$ in Billions
12 Months Ended
Dec. 31, 2018
Jan. 25, 2019
Jun. 30, 2018
Entity Information [Line Items]      
Entity Registrant Name HIGHWOODS PROPERTIES INC.    
Entity Central Index Key 0000921082    
Current Fiscal Year End Date --12-31    
Entity Filer Category Large Accelerated Filer    
Document Type 10-K    
Document Period End Date Dec. 31, 2018    
Document Fiscal Year Focus 2018    
Document Fiscal Period Focus FY    
Amendment Flag false    
Entity Common Stock, Shares Outstanding   103,559,065  
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Emerging Growth Company false    
Entity Small Business false    
Entity Shell Company false    
Entity Public Float     $ 5.2
Highwoods Realty Limited Partnership [Member]      
Entity Information [Line Items]      
Entity Registrant Name HIGHWOODS REALTY LTD PARTNERSHIP    
Entity Central Index Key 0000941713    
Current Fiscal Year End Date --12-31    
Entity Filer Category Non-accelerated Filer    
Document Type 10-K    
Document Period End Date Dec. 31, 2018    
Document Fiscal Year Focus 2018    
Document Fiscal Period Focus FY    
Amendment Flag false    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Emerging Growth Company false    
Entity Small Business false    
Entity Shell Company false    
v3.10.0.1
Consolidated Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Real estate assets, at cost:    
Land $ 491,441 $ 485,956
Buildings and tenant improvements 4,676,862 4,590,490
Development in-process 165,537 88,452
Land held for development 128,248 74,765
Total real estate assets 5,462,088 5,239,663
Less-accumulated depreciation (1,296,562) (1,202,424)
Net real estate assets 4,165,526 4,037,239
Real estate and other assets, net, held for sale 0 14,118
Cash and cash equivalents 3,769 3,272
Restricted cash 6,374 85,061
Accounts receivable, net of allowance of $1,166 and $753, respectively 25,952 24,397
Mortgages and notes receivable, net of allowance of $44 and $72, respectively 5,599 6,425
Accrued straight-line rents receivable, net of allowance of $641 and $819, respectively 220,088 200,131
Investments in and advances to unconsolidated affiliates 23,585 23,897
Deferred leasing costs, net of accumulated amortization of $149,275 and $143,512, respectively 195,273 200,679
Prepaid expenses and other assets, net of accumulated depreciation of $18,074 and $19,092, respectively 28,843 28,572
Total Assets 4,675,009 4,623,791
Liabilities, Noncontrolling Interests in the Operating Partnership and Equity/Liabilities, Redeemable Operating Partnership Units and Capital:    
Mortgages and notes payable, net 2,085,831 2,014,333
Accounts payable, accrued expenses and other liabilities 218,922 228,215
Total Liabilities 2,304,753 2,242,548
Commitments and contingencies
Noncontrolling interests in the Operating Partnership 105,960 144,009
Equity/Capital:    
Preferred Stock, $.01 par value, 50,000,000 authorized shares; 8.625% Series A Cumulative Redeemable Preferred Shares (liquidation preference $1,000 per share), 28,877 and 28,892 shares issued and outstanding, respectively 28,877 28,892
Common Stock, $.01 par value, 200,000,000 authorized shares; 103,557,065 and 103,266,875 shares issued and outstanding, respectively 1,036 1,033
Additional paid-in capital 2,976,197 2,929,399
Distributions in excess of net income available for common stockholders (769,303) (747,344)
Accumulated other comprehensive income 9,913 7,838
Total Stockholders’ Equity 2,246,720 2,219,818
Noncontrolling interests in consolidated affiliates 17,576 17,416
Total Equity/Capital: 2,264,296 2,237,234
Total Liabilities, Noncontrolling Interests in the Operating Partnership and Equity/Total Liabilities, Redeemable Operating Partnership Units and Capital 4,675,009 4,623,791
Highwoods Realty Limited Partnership [Member]    
Real estate assets, at cost:    
Land 491,441 485,956
Buildings and tenant improvements 4,676,862 4,590,490
Development in-process 165,537 88,452
Land held for development 128,248 74,765
Total real estate assets 5,462,088 5,239,663
Less-accumulated depreciation (1,296,562) (1,202,424)
Net real estate assets 4,165,526 4,037,239
Real estate and other assets, net, held for sale 0 14,118
Cash and cash equivalents 3,769 3,272
Restricted cash 6,374 85,061
Accounts receivable, net of allowance of $1,166 and $753, respectively 25,952 24,397
Mortgages and notes receivable, net of allowance of $44 and $72, respectively 5,599 6,425
Accrued straight-line rents receivable, net of allowance of $641 and $819, respectively 220,088 200,131
Investments in and advances to unconsolidated affiliates 23,585 23,897
Deferred leasing costs, net of accumulated amortization of $149,275 and $143,512, respectively 195,273 200,679
Prepaid expenses and other assets, net of accumulated depreciation of $18,074 and $19,092, respectively 28,843 28,572
Total Assets 4,675,009 4,623,791
Liabilities, Noncontrolling Interests in the Operating Partnership and Equity/Liabilities, Redeemable Operating Partnership Units and Capital:    
Mortgages and notes payable, net 2,085,831 2,014,333
Accounts payable, accrued expenses and other liabilities 218,922 228,215
Total Liabilities 2,304,753 2,242,548
Commitments and contingencies
Redeemable Operating Partnership Units:    
Common Units, 2,738,703 and 2,828,704 outstanding, respectively 105,960 144,009
Series A Preferred Units (liquidation preference $1,000 per unit), 28,877 and 28,892 units issued and outstanding, respectively 28,877 28,892
Total Redeemable Operating Partnership Units 134,837 172,901
Equity/Capital:    
General partner Common Units, 1,058,870 and 1,056,868 outstanding, respectively 22,078 21,830
Limited partner Common Units, 102,089,386 and 101,801,198 outstanding, respectively 2,185,852 2,161,258
Accumulated other comprehensive income 9,913 7,838
Noncontrolling interests in consolidated affiliates 17,576 17,416
Total Equity/Capital: 2,235,419 2,208,342
Total Liabilities, Noncontrolling Interests in the Operating Partnership and Equity/Total Liabilities, Redeemable Operating Partnership Units and Capital $ 4,675,009 $ 4,623,791
v3.10.0.1
Consolidated Balance Sheets (Parentheticals) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Assets:    
Accounts receivable allowance $ 1,166 $ 753
Mortgages and notes receivable allowance 44 72
Accrued straight-line rents receivable allowance 641 819
Deferred leasing costs, accumulated amortization 149,275 143,512
Prepaid expenses and other assets, accumulated amortization $ 18,074 $ 19,092
Equity/Capital:    
Preferred Stock, par value (in dollars per share) $ 0.01 $ 0.01
Preferred Stock, authorized shares (in shares) 50,000,000 50,000,000
Preferred Stock, liquidation preference (in dollars per share) $ 1,000 $ 1,000
Preferred Stock, shares issued (in shares) 28,877 28,892
Preferred Stock, shares outstanding (in shares) 28,877 28,892
Common Stock, par value (in dollars per share) $ 0.01 $ 0.01
Common Stock, authorized shares (in shares) 200,000,000 200,000,000
Common Stock, shares issued (in shares) 103,557,065 103,266,875
Common Stock, shares outstanding (in shares) 103,557,065 103,266,875
Highwoods Realty Limited Partnership [Member]    
Assets:    
Accounts receivable allowance $ 1,166 $ 753
Mortgages and notes receivable allowance 44 72
Accrued straight-line rents receivable allowance 641 819
Deferred leasing costs, accumulated amortization 149,275 143,512
Prepaid expenses and other assets, accumulated amortization $ 18,074 $ 19,092
Redeemable Operating Partnership Units:    
Redeemable Common Units, outstanding (in shares) 2,738,703 2,828,704
Preferred Units liquidation preference (in dollars per share) $ 1,000 $ 1,000
Series A Preferred Units, issued (in shares) 28,877 28,892
Series A Preferred Units, outstanding (in shares) 28,877 28,892
Common Units:    
General partners' capital account, units outstanding (in shares) 1,058,870 1,056,868
Limited partners' capital account, units outstanding (in shares) 102,089,386 101,801,198
v3.10.0.1
Consolidated Statements of Income - USD ($)
shares in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Rental and other revenues $ 720,035 $ 702,737 $ 665,634
Operating expenses:      
Rental property and other expenses 242,415 236,888 231,085
Depreciation and amortization 229,955 227,832 220,140
Impairments of real estate assets 423 1,445 0
General and administrative 40,006 39,648 38,153
Total operating expenses 512,799 505,813 489,378
Interest expense:      
Contractual 68,565 65,939 73,142
Amortization of debt issuance costs 2,857 3,166 3,506
Total interest expense 71,422 69,105 76,648
Other income:      
Interest and other income 1,940 2,309 2,338
Losses on debt extinguishment 0 (26) 0
Total other income 1,940 2,283 2,338
Income from continuing operations before disposition of investment properties and activity in unconsolidated affiliates 137,754 130,102 101,946
Gains on disposition of property 37,638 54,157 14,807
Equity in earnings of unconsolidated affiliates 2,238 7,404 5,793
Income from continuing operations 177,630 191,663 122,546
Discontinued operations:      
Income from discontinued operations 0 0 4,097
Net gains on disposition of discontinued operations 0 0 414,496
Total income from discontinued operations 0 0 418,593
Net income 177,630 191,663 541,139
Net (income) attributable to noncontrolling interests in the Operating Partnership (4,588) (5,059) (15,596)
Net (income) attributable to noncontrolling interests in consolidated affiliates (1,207) (1,239) (1,253)
Dividends on Preferred Stock (2,492) (2,492) (2,501)
Net income available for common stockholders $ 169,343 $ 182,873 $ 521,789
Earnings per Common Share - basic:      
Income from continuing operations available for common stockholders (in dollars per share) $ 1.64 $ 1.78 $ 1.17
Income from discontinued operations available for common stockholders (in dollars per share) 0.00 0.00 4.13
Net income available for common stockholders (in dollars per share) $ 1.64 $ 1.78 $ 5.30
Weighted average Common Shares outstanding - basic (in shares) 103,439 102,682 98,439
Earnings per Common Share - diluted:      
Income from continuing operations available for common stockholders (in dollars per share) $ 1.64 $ 1.78 $ 1.17
Income from discontinued operations available for common stockholders (in dollars per share) 0.00 0.00 4.13
Net income available for common stockholders (in dollars per share) $ 1.64 $ 1.78 $ 5.30
Weighted average Common Shares outstanding - diluted (in shares) 106,268 105,594 101,398
Net income available for common stockholders:      
Income from continuing operations available for common stockholders $ 169,343 $ 182,873 $ 115,461
Income from discontinued operations available for common stockholders 0 0 406,328
Net income available for common stockholders 169,343 182,873 521,789
Highwoods Realty Limited Partnership [Member]      
Rental and other revenues 720,035 702,737 665,634
Operating expenses:      
Rental property and other expenses 242,415 236,888 231,085
Depreciation and amortization 229,955 227,832 220,140
Impairments of real estate assets 423 1,445 0
General and administrative 40,006 39,648 38,153
Total operating expenses 512,799 505,813 489,378
Interest expense:      
Contractual 68,565 65,939 73,142
Amortization of debt issuance costs 2,857 3,166 3,506
Total interest expense 71,422 69,105 76,648
Other income:      
Interest and other income 1,940 2,309 2,338
Losses on debt extinguishment 0 (26) 0
Total other income 1,940 2,283 2,338
Income from continuing operations before disposition of investment properties and activity in unconsolidated affiliates 137,754 130,102 101,946
Gains on disposition of property 37,638 54,157 14,807
Equity in earnings of unconsolidated affiliates 2,238 7,404 5,793
Income from continuing operations 177,630 191,663 122,546
Discontinued operations:      
Income from discontinued operations 0 0 4,097
Net gains on disposition of discontinued operations 0 0 414,496
Total income from discontinued operations 0 0 418,593
Net income 177,630 191,663 541,139
Net (income) attributable to noncontrolling interests in consolidated affiliates (1,207) (1,239) (1,253)
Distributions on Preferred Units (2,492) (2,492) (2,501)
Net income available for common unitholders $ 173,931 $ 187,932 $ 537,385
Earnings per Common Unit - basic:      
Income from continuing operations available for common unitholders (in dollars per share) $ 1.64 $ 1.79 $ 1.18
Income from discontinued operations available for common unitholders (in dollars per share) 0.00 0.00 4.15
Net income available for common unitholders (in dollars per share) $ 1.64 $ 1.79 $ 5.33
Weighted average Common Units outstanding - basic (in shares) 105,826 105,106 100,902
Earnings per Common Unit - diluted:      
Income from continuing operations available for common unitholders (in dollars per share) $ 1.64 $ 1.79 $ 1.18
Income from discontinued operations available for common unitholders (in dollars per share) 0.00 0.00 4.14
Net income available for common unitholders (in dollars per share) $ 1.64 $ 1.79 $ 5.32
Weighted average Common Units outstanding - diluted (in shares) 105,859 105,185 100,989
Net income available for common unitholders:      
Income from continuing operations available for common unitholders $ 173,931 $ 187,932 $ 118,792
Total income from discontinued operations 0 0 418,593
Net income available for common unitholders $ 173,931 $ 187,932 $ 537,385
v3.10.0.1
Consolidated Statements of Comprehensive Income - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Comprehensive income:      
Net income $ 177,630 $ 191,663 $ 541,139
Other comprehensive income:      
Unrealized gains on cash flow hedges 4,161 1,732 5,703
Amortization of cash flow hedges (2,086) 1,157 3,057
Total other comprehensive income 2,075 2,889 8,760
Total comprehensive income 179,705 194,552 549,899
Less-comprehensive (income) attributable to noncontrolling interests (5,795) (6,298) (16,849)
Comprehensive income attributable to common stockholders/unitholders 173,910 188,254 533,050
Highwoods Realty Limited Partnership [Member]      
Comprehensive income:      
Net income 177,630 191,663 541,139
Other comprehensive income:      
Unrealized gains on cash flow hedges 4,161 1,732 5,703
Amortization of cash flow hedges (2,086) 1,157 3,057
Total other comprehensive income 2,075 2,889 8,760
Total comprehensive income 179,705 194,552 549,899
Less-comprehensive (income) attributable to noncontrolling interests (1,207) (1,239) (1,253)
Comprehensive income attributable to common stockholders/unitholders $ 178,498 $ 193,313 $ 548,646
v3.10.0.1
Consolidated Statements of Equity - USD ($)
$ in Thousands
Total
Highwoods Realty Limited Partnership [Member]
Special Dividend [Member]
Special Dividend [Member]
Highwoods Realty Limited Partnership [Member]
Common Stock [Member]
Common Stock [Member]
Special Dividend [Member]
Series A Cumulative Redeemable Preferred Shares [Member]
Series A Cumulative Redeemable Preferred Shares [Member]
Special Dividend [Member]
General Partner Common Units [Member]
Highwoods Realty Limited Partnership [Member]
General Partner Common Units [Member]
Special Dividend [Member]
Highwoods Realty Limited Partnership [Member]
Limited Partner Common Units [Member]
Highwoods Realty Limited Partnership [Member]
Limited Partner Common Units [Member]
Special Dividend [Member]
Highwoods Realty Limited Partnership [Member]
Additional Paid-In Capital [Member]
Additional Paid-In Capital [Member]
Special Dividend [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Highwoods Realty Limited Partnership [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Special Dividend [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Special Dividend [Member]
Highwoods Realty Limited Partnership [Member]
Noncontrolling Interests in Consolidated Affiliates [Member]
Noncontrolling Interests in Consolidated Affiliates [Member]
Highwoods Realty Limited Partnership [Member]
Noncontrolling Interests in Consolidated Affiliates [Member]
Special Dividend [Member]
Noncontrolling Interests in Consolidated Affiliates [Member]
Special Dividend [Member]
Highwoods Realty Limited Partnership [Member]
Distributions in Excess of Net Income Available for Common Stockholders [Member]
Distributions in Excess of Net Income Available for Common Stockholders [Member]
Special Dividend [Member]
Balance (in shares) at Dec. 31, 2015         96,091,932                                      
Balance at Dec. 31, 2015 $ 1,619,282 $ 1,590,232     $ 961   $ 29,050   $ 15,759   $ 1,560,309   $ 2,598,242   $ (3,811) $ (3,811)     $ 17,975 $ 17,975     $ (1,023,135)  
Increase (Decrease) in Stockholders' Equity [Roll Forward]                                                
Issuances of Common Units, net of issuance costs and tax withholdings   256,380             2,564   253,816         0       0        
Distributions on Common Units   (171,054)   $ (83,149)         (1,710) $ (832) (169,344) $ (82,317)       0   $ 0   0   $ 0    
Distributions on Preferred Units   (2,501)             (25)   (2,476)         0       0        
Issuances of Common Stock - Shares         5,390,710                                      
Issuances of Common Stock, net of issuance costs and tax withholdings 256,380       $ 54   0           256,326   0       0       0  
Conversions of Common Units to Common Stock - Shares         61,048                                      
Conversions of Common Units to Common Stock 3,057       $ 0   0           3,057   0       0       0  
Dividends on Common Stock (166,861)   $ (81,205)   0 $ 0 0 $ 0         0 $ 0 0   $ 0   0   $ 0   (166,861) $ (81,205)
Dividends on Preferred Stock (2,501)       0   0           0   0       0       (2,501)  
Adjustment of noncontrolling interests in the Operating Partnership to fair value (12,993)       0   0           (12,993)   0       0       0  
Distributions to noncontrolling interests in consolidated affiliates (1,267) (1,267)     $ 0   0   0   0   0   0 0     (1,267) (1,267)     0  
Issuances of restricted stock - Shares         130,752                                      
Issuances of restricted stock 0       $ 0   0           0   0       0       0  
Redemptions/repurchases of Preferred Stock (130)       $ 0   (130)           0   0       0       0  
Share-based compensation expense, net of forfeitures - Shares         (8,888)                                      
Share-based compensation expense, net of forfeitures 6,251 6,251     $ 2   0   63   6,188   6,249   0 0     0 0     0  
Adjustment of Redeemable Common Units to fair value and contributions/distributions from/to the General Partner   (19,395)             (194)   (19,201)         0       0        
Net (income) attributable to noncontrolling interests in the Operating Partnership (15,596)       0   0           0   0       0       (15,596)  
Net (income) attributable to noncontrolling interests in consolidated affiliates 0 0     0   0   (13)   (1,240)   0   0 0     1,253 1,253     (1,253)  
Comprehensive income:                                                
Net income 541,139 541,139     0   0   5,411   535,728   0   0 0     0 0     541,139  
Other comprehensive income 8,760 8,760     0   0   0   0   0   8,760 8,760     0 0     0  
Total comprehensive income 549,899 549,899                                            
Balance at Dec. 31, 2016 2,154,316 2,125,396     $ 1,017   28,920   21,023   2,081,463   2,850,881   4,949 4,949     17,961 17,961     (749,412)  
Balance (in shares) at Dec. 31, 2016         101,665,554                                      
Increase (Decrease) in Stockholders' Equity [Roll Forward]                                                
Issuances of Common Units, net of issuance costs and tax withholdings   70,977             710   70,267         0       0        
Distributions on Common Units   (185,072)             (1,851)   (183,221)         0       0        
Distributions on Preferred Units   (2,492)             (25)   (2,467)         0       0        
Issuances of Common Stock - Shares         1,480,573                                      
Issuances of Common Stock, net of issuance costs and tax withholdings 70,977       $ 15   0           70,962   0       0       0  
Conversions of Common Units to Common Stock - Shares         10,000                                      
Conversions of Common Units to Common Stock 511       $ 0   0           511   0       0       0  
Dividends on Common Stock (180,805)       0   0           0   0       0       (180,805)  
Dividends on Preferred Stock (2,492)       0   0           0   0       0       (2,492)  
Adjustment of noncontrolling interests in the Operating Partnership to fair value 354       0   0           354   0       0       0  
Distributions to noncontrolling interests in consolidated affiliates (1,784) (1,784)     $ 0   0   0   0   0   0 0     (1,784) (1,784)     0  
Issuances of restricted stock - Shares         110,748                                      
Issuances of restricted stock 0       $ 0   0           0   0       0       0  
Redemptions/repurchases of Preferred Stock (28)       $ 0   (28)           0   0       0       0  
Share-based compensation expense, net of forfeitures - Shares         0                                      
Share-based compensation expense, net of forfeitures 6,692 6,692     $ 1   0   67   6,625   6,691   0 0     0 0     0  
Adjustment of Redeemable Common Units to fair value and contributions/distributions from/to the General Partner   73             1   72         0       0        
Net (income) attributable to noncontrolling interests in the Operating Partnership (5,059)       0   0           0   0       0       (5,059)  
Net (income) attributable to noncontrolling interests in consolidated affiliates 0 0     0   0   (12)   (1,227)   0   0 0     1,239 1,239     (1,239)  
Comprehensive income:                                                
Net income 191,663 191,663     0   0   1,917   189,746   0   0 0     0 0     191,663  
Other comprehensive income 2,889 2,889     0   0   0   0   0   2,889 2,889     0 0     0  
Total comprehensive income 194,552 194,552                                            
Balance at Dec. 31, 2017 $ 2,237,234 2,208,342     $ 1,033   28,892   21,830   2,161,258   2,929,399   7,838 7,838     17,416 17,416     (747,344)  
Balance (in shares) at Dec. 31, 2017 103,266,875       103,266,875                                      
Increase (Decrease) in Stockholders' Equity [Roll Forward]                                                
Issuances of Common Units, net of issuance costs and tax withholdings   1,865             19   1,846         0       0        
Distributions on Common Units   (195,712)             (1,957)   (193,755)         0       0        
Distributions on Preferred Units   (2,492)             (25)   (2,467)         0       0        
Issuances of Common Stock - Shares         33,652                                      
Issuances of Common Stock, net of issuance costs and tax withholdings $ 1,865       $ 0   0           1,865   0       0       0  
Conversions of Common Units to Common Stock - Shares         90,001                                      
Conversions of Common Units to Common Stock 4,043       $ 0   0           4,043   0       0       0  
Dividends on Common Stock (191,302)       0   0           0   0       0       (191,302)  
Dividends on Preferred Stock (2,492)       0   0           0   0       0       (2,492)  
Adjustment of noncontrolling interests in the Operating Partnership to fair value 33,427       0   0           33,427   0       0       0  
Distributions to noncontrolling interests in consolidated affiliates (1,047) (1,047)     $ 0   0   0   0   0   0 0     (1,047) (1,047)     0  
Issuances of restricted stock - Shares         172,440                                      
Issuances of restricted stock 0       $ 0   0           0   0       0       0  
Redemptions/repurchases of Preferred Stock (15)       $ 0   (15)           0   0       0       0  
Share-based compensation expense, net of forfeitures - Shares         (5,903)                                      
Share-based compensation expense, net of forfeitures 7,466 7,466     $ 3   0   75   7,391   7,463   0 0     0 0     0  
Adjustment of Redeemable Common Units to fair value and contributions/distributions from/to the General Partner   37,292             372   36,920         0       0        
Net (income) attributable to noncontrolling interests in the Operating Partnership (4,588)       0   0           0   0       0       (4,588)  
Net (income) attributable to noncontrolling interests in consolidated affiliates 0 0     0   0   (12)   (1,195)   0   0 0     1,207 1,207     (1,207)  
Comprehensive income:                                                
Net income 177,630 177,630     0   0   1,776   175,854   0   0 0     0 0     177,630  
Other comprehensive income 2,075 2,075     0   0   0   0   0   2,075 2,075     0 0     0  
Total comprehensive income 179,705 179,705                                            
Balance at Dec. 31, 2018 $ 2,264,296 $ 2,235,419     $ 1,036   $ 28,877   $ 22,078   $ 2,185,852   $ 2,976,197   $ 9,913 $ 9,913     $ 17,576 $ 17,576     $ (769,303)  
Balance (in shares) at Dec. 31, 2018 103,557,065       103,557,065                                      
v3.10.0.1
Consolidated Statements of Equity (Parentheticals) - $ / shares
3 Months Ended 12 Months Ended
Dec. 31, 2016
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Series A Cumulative Redeemable Preferred Shares [Member]        
Dividends on Preferred Stock (per share)/Distributions on Preferred Units (per unit)   $ 86.25 $ 86.25 $ 86.25
Highwoods Properties, Inc. [Member]        
Dividends on Common Stock (per share)   1.85 1.76 1.70
Highwoods Properties, Inc. [Member] | Special Dividend [Member]        
Dividends on Common Stock (per share) $ 0.80     2.50
Highwoods Properties, Inc. [Member] | Series A Cumulative Redeemable Preferred Shares [Member]        
Dividends on Preferred Stock (per share)/Distributions on Preferred Units (per unit)   86.25 86.25 86.25
Highwoods Realty Limited Partnership [Member]        
Distributions on Common Units (per unit)   1.85 1.76 1.70
Highwoods Realty Limited Partnership [Member] | Special Dividend [Member]        
Distributions on Common Units (per unit) $ 0.80     2.50
Highwoods Realty Limited Partnership [Member] | Series A Cumulative Redeemable Preferred Shares [Member]        
Dividends on Preferred Stock (per share)/Distributions on Preferred Units (per unit)   $ 86.25 $ 86.25 $ 86.25
v3.10.0.1
Consolidated Statements of Cash Flows
$ in Thousands
12 Months Ended
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Operating activities:      
Net income $ 177,630 $ 191,663 $ 541,139
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization 229,955 227,832 220,140
Amortization of lease incentives and acquisition-related intangible assets and liabilities (1,943) (1,172) (1,996)
Share-based compensation expense 7,466 6,692 6,251
Allowance for losses on accounts and accrued straight-line rents receivable 1,212 1,508 2,001
Accrued interest on mortgages and notes receivable (451) (509) (502)
Amortization of debt issuance costs 2,857 3,166 3,506
Amortization of cash flow hedges (2,086) 1,157 3,057
Amortization of mortgages and notes payable fair value adjustments 1,449 705 (234)
Impairments of real estate assets 423 1,445 0
Losses on debt extinguishment 0 26 0
Net gains on disposition of property (37,638) (54,157) (429,303)
Equity in earnings of unconsolidated affiliates (2,238) (7,404) (5,793)
Distributions of earnings from unconsolidated affiliates 2,104 5,078 4,424
Settlement of cash flow hedges 7,216 7,322 0
Changes in operating assets and liabilities:      
Accounts receivable 1,759 (4,974) 3,401
Prepaid expenses and other assets 1,217 7,908 (4,423)
Accrued straight-line rents receivable (23,203) (32,234) (24,245)
Accounts payable, accrued expenses and other liabilities (7,101) (1,520) (11,618)
Net cash provided by operating activities 358,628 352,532 305,805
Investing activities:      
Investments in acquired real estate and related intangible assets, net of cash acquired (50,649) (1,840) (110,249)
Investments in development in-process (150,310) (150,944) (177,875)
Investments in tenant improvements and deferred leasing costs (121,534) (109,742) (91,423)
Investments in building improvements (68,256) (63,780) (80,672)
Net proceeds from disposition of real estate assets 88,813 129,503 684,371
Distributions of capital from unconsolidated affiliates 105 11,670 2,766
Investments in mortgages and notes receivable 0 0 (7,934)
Repayments of mortgages and notes receivable 1,312 2,917 1,699
Investments in and advances to unconsolidated affiliates 0 (10,063) (105)
Repayments from unconsolidated affiliates 0 0 448
Changes in other investing activities (6,230) (8,023) (4,764)
Net cash provided by/(used in) investing activities (306,749) (200,302) 216,262
Financing activities:      
Dividends on Common Stock (191,302) (180,805) (166,861)
Special dividend on Common Stock 0 (81,205) 0
Redemptions/repurchases of Preferred Stock (15) (28) (130)
Dividends on Preferred Stock (2,492) (2,492) (2,501)
Distributions to noncontrolling interests in the Operating Partnership (5,167) (4,987) (4,888)
Special distribution to noncontrolling interests in the Operating Partnership 0 (2,271) 0
Distributions to noncontrolling interests in consolidated affiliates (1,047) (1,784) (1,267)
Proceeds from the issuance of Common Stock 3,637 76,268 264,769
Costs paid for the issuance of Common Stock (95) (1,283) (3,973)
Repurchase of shares related to tax withholdings (1,677) (4,008) (4,416)
Borrowings on revolving credit facility 438,900 780,300 287,600
Repayments of revolving credit facility (501,900) (535,300) (586,600)
Borrowings on mortgages and notes payable 345,863 656,001 150,000
Repayments of mortgages and notes payable (211,803) (832,553) (395,993)
Payments of debt extinguishment costs 0 (57) 0
Changes in debt issuance costs and other financing activities (2,971) (8,324) (981)
Net cash used in financing activities (130,069) (142,528) (465,241)
Net increase/(decrease) in cash and cash equivalents and restricted cash (78,190) 9,702 56,826
Cash and cash equivalents and restricted cash at beginning of the period 88,333 78,631 21,805
Cash and cash equivalents and restricted cash at end of the period 10,143 88,333 78,631
Reconciliation of cash and cash equivalents and restricted cash:      
Cash and cash equivalents at end of the period 3,769 3,272 49,490
Restricted cash at end of the period 6,374 85,061 29,141
Supplemental disclosure of cash flow information:      
Cash paid for interest, net of amounts capitalized 67,235 68,207 72,847
Supplemental disclosure of non-cash investing and financing activities:      
Unrealized gains on cash flow hedges 4,161 1,732 5,703
Conversions of Common Units to Common Stock 4,043 511 3,057
Changes in accrued capital expenditures (165) (1,912) 8,580
Write-off of fully depreciated real estate assets 76,558 59,108 39,262
Write-off of fully amortized leasing costs 34,191 40,517 25,569
Write-off of fully amortized debt issuance costs 2,733 11,724 964
Adjustment of noncontrolling interests in the Operating Partnership to fair value (33,427) (354) 12,993
Contingent consideration in connection with the acquisition of land 0 750 0
Special dividend on Common Stock declared 0 0 (81,205)
Special distribution to noncontrolling interests in the Operating Partnership declared 0 0 (2,271)
Highwoods Realty Limited Partnership [Member]      
Operating activities:      
Net income 177,630 191,663 541,139
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization 229,955 227,832 220,140
Amortization of lease incentives and acquisition-related intangible assets and liabilities (1,943) (1,172) (1,996)
Share-based compensation expense 7,466 6,692 6,251
Allowance for losses on accounts and accrued straight-line rents receivable 1,212 1,508 2,001
Accrued interest on mortgages and notes receivable (451) (509) (502)
Amortization of debt issuance costs 2,857 3,166 3,506
Amortization of cash flow hedges (2,086) 1,157 3,057
Amortization of mortgages and notes payable fair value adjustments 1,449 705 (234)
Impairments of real estate assets 423 1,445 0
Losses on debt extinguishment 0 26 0
Net gains on disposition of property (37,638) (54,157) (429,303)
Equity in earnings of unconsolidated affiliates (2,238) (7,404) (5,793)
Distributions of earnings from unconsolidated affiliates 2,104 5,078 4,011
Settlement of cash flow hedges 7,216 7,322 0
Changes in operating assets and liabilities:      
Accounts receivable 1,759 (4,974) 3,401
Prepaid expenses and other assets 1,217 7,908 (4,423)
Accrued straight-line rents receivable (23,203) (32,234) (24,245)
Accounts payable, accrued expenses and other liabilities (7,101) (1,520) (11,618)
Net cash provided by operating activities 358,628 352,532 305,392
Investing activities:      
Investments in acquired real estate and related intangible assets, net of cash acquired (50,649) (1,840) (110,249)
Investments in development in-process (150,310) (150,944) (177,875)
Investments in tenant improvements and deferred leasing costs (121,534) (109,742) (91,423)
Investments in building improvements (68,256) (63,780) (80,672)
Net proceeds from disposition of real estate assets 88,813 129,503 684,371
Distributions of capital from unconsolidated affiliates 105 11,670 3,179
Investments in mortgages and notes receivable 0 0 (7,934)
Repayments of mortgages and notes receivable 1,312 2,917 1,699
Investments in and advances to unconsolidated affiliates 0 (10,063) (105)
Repayments from unconsolidated affiliates 0 0 448
Changes in other investing activities (6,230) (8,023) (4,764)
Net cash provided by/(used in) investing activities (306,749) (200,302) 216,675
Financing activities:      
Distributions on Common Units (195,712) (185,072) (171,054)
Special distribution on Common Units 0 (83,149) 0
Redemptions/repurchases of Preferred Units (15) (28) (130)
Distributions on Preferred Units (2,492) (2,492) (2,501)
Distributions to noncontrolling interests in consolidated affiliates (1,047) (1,784) (1,267)
Proceeds from the issuance of Common Units 3,637 76,268 264,769
Costs paid for the issuance of Common Units (95) (1,283) (3,973)
Repurchase of units related to tax withholdings (1,677) (4,008) (4,416)
Borrowings on revolving credit facility 438,900 780,300 287,600
Repayments of revolving credit facility (501,900) (535,300) (586,600)
Borrowings on mortgages and notes payable 345,863 656,001 150,000
Repayments of mortgages and notes payable (211,803) (832,553) (395,993)
Payments of debt extinguishment costs 0 (57) 0
Changes in debt issuance costs and other financing activities (3,728) (9,371) (1,676)
Net cash used in financing activities (130,069) (142,528) (465,241)
Net increase/(decrease) in cash and cash equivalents and restricted cash (78,190) 9,702 56,826
Cash and cash equivalents and restricted cash at beginning of the period 88,333 78,631 21,805
Cash and cash equivalents and restricted cash at end of the period 10,143 88,333 78,631
Reconciliation of cash and cash equivalents and restricted cash:      
Cash and cash equivalents at end of the period 3,769 3,272 49,490
Restricted cash at end of the period 6,374 85,061 29,141
Supplemental disclosure of cash flow information:      
Cash paid for interest, net of amounts capitalized 67,235 68,207 72,847
Supplemental disclosure of non-cash investing and financing activities:      
Unrealized gains on cash flow hedges 4,161 1,732 5,703
Changes in accrued capital expenditures (165) (1,912) 8,580
Write-off of fully depreciated real estate assets 76,558 59,108 39,262
Write-off of fully amortized leasing costs 34,191 40,517 25,569
Write-off of fully amortized debt issuance costs 2,733 11,724 964
Adjustment of Redeemable Common Units to fair value (38,049) (793) 18,373
Contingent consideration in connection with the acquisition of land 0 750 0
Special distribution on Common Units declared $ 0 $ 0 $ (83,149)
v3.10.0.1
Description of Business and Significant Accounting Policies
12 Months Ended
Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Description of Business and Significant Accounting Policies
Description of Business and Significant Accounting Policies

Description of Business

Highwoods Properties, Inc. (the “Company”) is a fully integrated real estate investment trust (“REIT”) that provides leasing, management, development, construction and other customer-related services for its properties and for third parties. The Company conducts its activities through Highwoods Realty Limited Partnership (the “Operating Partnership”). At December 31, 2018, we owned or had an interest in 30.5 million rentable square feet of in-service properties, 1.8 million rentable square feet of properties under development and approximately 350 acres of development land.

The Company is the sole general partner of the Operating Partnership. At December 31, 2018, the Company owned all of the Preferred Units and 103.1 million, or 97.4%, of the Common Units in the Operating Partnership. Limited partners owned the remaining 2.7 million Common Units. In the event the Company issues shares of Common Stock, the net proceeds of the issuance are contributed to the Operating Partnership in exchange for additional Common Units. Generally, the Operating Partnership is obligated to redeem each Common Unit at the request of the holder thereof for cash equal to the value of one share of Common Stock based on the average of the market price for the 10 trading days immediately preceding the notice date of such redemption, provided that the Company, at its option, may elect to acquire any such Common Units presented for redemption for cash or one share of Common Stock. The Common Units owned by the Company are not redeemable. During 2018, the Company redeemed 90,001 Common Units for a like number of shares of Common Stock.

Basis of Presentation

Our Consolidated Financial Statements are prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”).

The Company's Consolidated Financial Statements include the Operating Partnership, wholly owned subsidiaries and those entities in which the Company has the controlling interest. The Operating Partnership's Consolidated Financial Statements include wholly owned subsidiaries and those entities in which the Operating Partnership has the controlling interest. We consolidate joint venture investments, such as interests in partnerships and limited liability companies, when we control the major operating and financial policies of the investment through majority ownership, in our capacity as a general partner or managing member or through some other contractual right. At December 31, 2018, three properties owned through a joint venture investment were consolidated.

All intercompany transactions and accounts have been eliminated.

Use of Estimates

The preparation of consolidated financial statements in accordance with GAAP requires us to make estimates and assumptions that affect the amounts reported in our Consolidated Financial Statements and accompanying notes. Actual results could differ from those estimates.

Insurance

Beginning in 2018, we are primarily self-insured for health care claims for participating employees. We have stop-loss coverage to limit our exposure to significant claims on a per claim and annual aggregate basis. We determine our liabilities for claims, including incurred but not reported losses, based on all relevant information, including actuarial estimates of claim liabilities. At December 31, 2018, a reserve of $0.5 million was recorded to cover estimated reported and unreported claims.


1.    Description of Business and Significant Accounting Policies – Continued

Real Estate and Related Assets

Real estate and related assets are recorded at cost and stated at cost less accumulated depreciation. Renovations, replacements and other expenditures that improve or extend the life of assets are capitalized and depreciated over their estimated useful lives. Expenditures for ordinary maintenance and repairs are charged to expense as incurred. Depreciation is computed using the straight-line method over the estimated useful life of 40 years for buildings and depreciable land infrastructure costs, 15 years for building improvements and five to seven years for furniture, fixtures and equipment. Tenant improvements are amortized using the straight-line method over initial fixed terms of the respective leases, which generally are from three to 10 years. Depreciation expense for real estate assets was $191.0 million, $184.4 million and $173.1 million for the years ended December 31, 2018, 2017 and 2016, respectively.

Expenditures directly related to the development and construction of real estate assets are included in net real estate assets and are stated at depreciated cost. Development expenditures include pre-construction costs essential to the development of properties, development and construction costs, interest costs on qualifying assets, real estate taxes, development personnel salaries and related costs and other costs incurred during the period of development. Interest and other carrying costs are capitalized until the building is ready for its intended use, but not later than a year from cessation of major construction activity. We consider a construction project as substantially completed and ready for its intended use upon the completion of tenant improvements. We cease capitalization on the portion that is substantially completed and occupied or held available for occupancy, and capitalize only those costs associated with the portion under construction.

Expenditures directly related to the leasing of properties are included in deferred leasing costs and are stated at amortized cost. Such expenditures are part of the investment necessary to execute leases and, therefore, are classified as investment activities in the statement of cash flows. All leasing commissions paid to third parties for new leases or lease renewals are capitalized. Internal leasing costs, which consist primarily of compensation, benefits and other costs, such as legal fees related to leasing activities, that are incurred in connection with successfully obtaining leases of properties are also capitalized. Capitalized leasing costs are amortized on a straight-line basis over the initial fixed terms of the respective leases, which generally are from three to 10 years. Estimated costs related to unsuccessful activities are expensed as incurred.

We record liabilities for the performance of asset retirement activities when the obligation to perform such activities is probable even when uncertainty exists about the timing and/or method of settlement.

Upon the acquisition of real estate assets, we assess the fair value of acquired tangible assets such as land, buildings and tenant improvements, intangible assets and liabilities such as above and below market leases, acquired in-place leases, customer relationships and other identifiable intangible assets and assumed liabilities. We assess fair value based on estimated cash flow projections that utilize discount and/or capitalization rates as well as available market information. The fair value of the tangible assets of an acquired property considers the value of the property as if it were vacant. 

The above and below market rate portions of leases acquired in connection with property acquisitions are recorded in deferred leasing costs and in accounts payable, accrued expenses and other liabilities, respectively, at fair value and amortized into rental revenue over the remaining term of the respective leases as described below. Fair value is calculated as the present value of the difference between (1) the contractual amounts to be paid pursuant to each in-place lease and (2) our estimate of fair market lease rates for each corresponding in-place lease, using a discount rate that reflects the risks associated with the leases acquired and measured over a period equal to the remaining initial term of the lease for above-market leases and the remaining initial term plus the term of any renewal option that the customer would be economically compelled to exercise for below-market leases.

In-place leases acquired are recorded at fair value in deferred leasing costs and are amortized to depreciation and amortization expense over the remaining term of the respective lease. The value of in-place leases is based on our evaluation of the specific characteristics of each customer's lease. Factors considered include estimates of carrying costs during hypothetical expected lease-up periods, current market conditions, the customer's credit quality and costs to execute similar leases. In estimating carrying costs, we include real estate taxes, insurance and other operating expenses and estimates of lost rentals at market rates during the expected lease-up periods, depending on local market conditions. In estimating costs to execute similar leases, we consider tenant improvements, leasing commissions and legal and other related expenses.

1.    Description of Business and Significant Accounting Policies – Continued
 
Real estate and other assets are classified as long-lived assets held for use or as long-lived assets held for sale. Real estate is classified as held for sale when the sale of the asset is probable, has been duly approved by the Company, a legally enforceable contract has been executed and the buyer's due diligence period, if any, has expired.

Impairments of Real Estate Assets and Investments in Unconsolidated Affiliates

With respect to assets classified as held for use, we perform an impairment analysis if events or changes in circumstances indicate that the carrying value may be impaired, such as a significant decline in occupancy, identification of materially adverse legal or environmental factors, change in our designation of an asset from core to non-core, which may impact the anticipated holding period, or a decline in market value to an amount less than cost. This analysis is generally performed at the property level, except when an asset is part of an interdependent group such as an office park, and consists of determining whether the asset's carrying amount will be recovered from its undiscounted estimated future operating and residual cash flows. These cash flows are estimated based on a number of assumptions that are subject to economic and market uncertainties including, among others, demand for space, competition for customers, changes in market rental rates, costs to operate each property and expected ownership periods. For properties under development, the cash flows are based on expected service potential of the asset or asset group when development is substantially complete.

If the carrying amount of a held for use asset exceeds the sum of its undiscounted future operating and residual cash flows, an impairment loss is recorded for the difference between estimated fair value of the asset and the carrying amount. We generally estimate the fair value of assets held for use by using discounted cash flow analyses. In some instances, appraisal information may be available and is used in addition to a discounted cash flow analysis. As the factors used in generating these cash flows are difficult to predict and are subject to future events that may alter our assumptions, the discounted and/or undiscounted future operating and residual cash flows estimated by us in our impairment analyses or those established by appraisal may not be achieved and we may be required to recognize future impairment losses on properties held for use.
 
We record assets held for sale at the lower of the carrying amount or estimated fair value. Fair value of assets held for sale is equal to the estimated or contracted sales price with a potential buyer, less costs to sell. The impairment loss is the amount by which the carrying amount exceeds the estimated fair value.
 
We also analyze our investments in unconsolidated affiliates for impairment. This analysis consists of determining whether an expected loss in market value of an investment is other than temporary by evaluating the length of time and the extent to which the market value has been less than cost, the financial condition and near-term prospects of the investment, and our intent and ability to retain our investment for a period of time sufficient to allow for any anticipated recovery in market value. As the factors used in this analysis are difficult to predict and are subject to future events that may alter our assumptions, we may be required to recognize future impairment losses on our investments in unconsolidated affiliates.

Sales of Real Estate
 
For sales of real estate where we have collected the consideration to which we are entitled in exchange for transferring the real estate, the related assets and liabilities are removed from the balance sheet and the resultant gain or loss is recorded in the period the transaction closes. Any post sale involvement is accounted for as separate performance obligations and when the separate performance obligations are satisfied, the sales price allocated to each is recognized.


1.    Description of Business and Significant Accounting Policies – Continued

Rental and Other Revenues
 
Minimum contractual rents from leases are recognized on a straight-line basis over the terms of the respective leases. This means that, with respect to a particular lease, actual amounts billed in accordance with the lease during any given period may be higher or lower than the amount of rental revenue recognized for the period. Straight-line rental revenue is commenced when the customer assumes control of the leased premises. Accrued straight-line rents receivable represents the amount by which straight-line rental revenue exceeds rents currently billed in accordance with lease agreements. Contingent rental revenue, such as percentage rent, is accrued when the contingency is removed. Termination fee income is recognized at the later of when the customer has vacated the space or the lease has expired and a fully executed lease termination agreement has been delivered, the amount of the fee is determinable and collectability of the fee is reasonably assured.

Cost recovery income is determined on a calendar year and a lease-by-lease basis. The most common types of cost recovery income in our leases are common area maintenance (“CAM”) and real estate taxes, for which a customer typically pays its pro-rata share of operating and administrative expenses and real estate taxes in excess of the costs incurred during a contractually specified base year. The computation of cost recovery income is complex and involves numerous judgments, including the interpretation of lease provisions. Leases are not uniform in dealing with such cost recovery income and there are many variations in the computation. Many customers make monthly fixed payments of CAM, real estate taxes and other cost reimbursement items. We accrue income related to these payments each month. We make quarterly accrual adjustments, positive or negative, to cost recovery income to adjust the recorded amounts to our best estimate of the final annual amounts to be billed and collected. After the end of the calendar year, we compute each customer's final cost recovery income and, after considering amounts paid by the customer during the year, issue a bill or credit for the appropriate amount to the customer. The differences between the amounts billed less previously received payments and the accrual adjustment are recorded as increases or decreases to cost recovery income when the final bills are prepared, which occurs during the first half of the subsequent year.
 
Allowance for Doubtful Accounts
 
Accounts receivable, accrued straight-line rents receivable and mortgages and notes receivable are reduced by an allowance for amounts that may become uncollectible in the future. We regularly evaluate the adequacy of our allowance for doubtful accounts. The evaluation primarily consists of reviewing past due account balances and considering such factors as the credit quality of our customer, historical trends of the customer and changes in customer payment terms. Additionally, with respect to customers in bankruptcy, we estimate the probable recovery through bankruptcy claims and adjust the allowance for amounts deemed uncollectible. If our assumptions regarding the collectability of receivables prove incorrect, we could experience losses in excess of our allowance for doubtful accounts. The allowance and its related receivable are written-off when we have concluded there is a low probability of collection and we have discontinued collection efforts.

Discontinued Operations
 
Properties that are sold or classified as held for sale are classified as discontinued operations provided that the disposal represents a strategic shift that has (or will have) a major effect on our operations and financial results. Interest expense is included in discontinued operations if a related loan securing the sold property is to be paid off or assumed by the buyer in connection with the sale.

Lease Incentives
 
Lease incentive costs, which are payments made to or on behalf of a customer as an incentive to sign a lease, are capitalized in deferred leasing costs and amortized on a straight-line basis over the respective lease terms as a reduction of rental revenues.

1.    Description of Business and Significant Accounting Policies – Continued

Investments in Unconsolidated Affiliates
 
We account for our joint venture investments using the equity method of accounting when our interests represent a general partnership interest but substantive participating rights or substantive kick out rights have been granted to the limited partners or when our interests do not represent a general partnership interest and we do not control the major operating and financial policies of the investment. These investments are initially recorded at cost as investments in unconsolidated affiliates and are subsequently adjusted for our share of earnings and cash contributions and distributions. To the extent our cost basis at formation of the joint venture is different than the basis reflected at the joint venture level, the basis difference is amortized over the life of the related assets and included in our share of equity in earnings of unconsolidated affiliates.

Cash Equivalents

We consider highly liquid investments with an original maturity of three months or less when purchased to be cash equivalents.

Restricted Cash
 
Restricted cash represents cash deposits that are legally restricted or held by third parties on our behalf, such as construction-related escrows, property disposition proceeds set aside and designated or intended to fund future tax-deferred exchanges of qualifying real estate investments and escrows and reserves for debt service, real estate taxes and property insurance established pursuant to certain mortgage financing arrangements.

Redeemable Common Units and Preferred Units
 
Limited partners holding Common Units other than the Company (“Redeemable Common Units”) have the right to put any and all of the Common Units to the Operating Partnership and the Company has the right to put any and all of the Preferred Units to the Operating Partnership in exchange for their liquidation preference plus accrued and unpaid distributions in the event of a corresponding redemption by the Company of the underlying Preferred Stock. Consequently, these Redeemable Common Units and Preferred Units are classified outside of permanent partners’ capital in the Operating Partnership's accompanying balance sheets. The recorded value of the Redeemable Common Units is based on fair value at the balance sheet date as measured by the closing price of Common Stock on that date multiplied by the total number of Redeemable Common Units outstanding. The recorded value of the Preferred Units is based on their redemption value.

Income Taxes
 
The Company has elected and expects to continue to qualify as a REIT under Sections 856 through 860 of the Internal Revenue Code of 1986, as amended (the “Code”). A corporate REIT is a legal entity that holds real estate assets and, through the payment of dividends to stockholders, is generally permitted to reduce or avoid the payment of federal and state income taxes at the corporate level. To maintain qualification as a REIT, the Company is required to pay dividends to its stockholders equal to at least 90.0% of its annual REIT taxable income, excluding net capital gains. The partnership agreement requires the Operating Partnership to pay economically equivalent distributions on outstanding Common Units at the same time that the Company pays dividends on its outstanding Common Stock.

Other than income taxes related to its taxable REIT subsidiary, the Operating Partnership does not reflect any federal income taxes in its financial statements, since as a partnership the taxable effects of its operations are attributed to its partners. The Operating Partnership does record state income tax for states that tax partnership income directly.
 
We conduct certain business activities through a taxable REIT subsidiary, as permitted under the Code. The taxable REIT subsidiary is subject to federal, state and local income taxes on its taxable income. We record provisions for income taxes based on its income recognized for financial statement purposes, including the effects of differences between such income and the amount recognized for tax purposes.
 

1.    Description of Business and Significant Accounting Policies – Continued

Concentration of Credit Risk
 
At December 31, 2018, properties that we wholly own were leased to 1,654 customers. The geographic locations that comprise greater than 10.0% of our rental and other revenues are Raleigh, Atlanta, Tampa and Nashville. Our customers engage in a wide variety of businesses. No single customer generated more than 5% of our consolidated revenues during 2018.
 
We maintain our cash and cash equivalents and our restricted cash at financial or other intermediary institutions. The combined account balances at each institution may exceed FDIC insurance coverage and, as a result, there is a concentration of credit risk related to amounts on deposit in excess of FDIC insurance coverage. Additionally, from time to time in connection with tax-deferred 1031 transactions, our restricted cash balances may be commingled with other funds being held by any such intermediary institution, which would subject our balance to the credit risk of the institution.

Derivative Financial Instruments
 
We borrow funds at a combination of fixed and variable rates. Borrowings under our revolving credit facility and bank term loans bear interest at variable rates. Our long-term debt typically bears interest at fixed rates. Our interest rate risk management objectives are to limit generally the impact of interest rate changes on earnings and cash flows and lower our overall borrowing costs. To achieve these objectives, from time to time, we enter into interest rate hedge contracts such as collars, swaps, caps and treasury lock agreements in order to mitigate our interest rate risk with respect to existing and prospective debt instruments. We generally do not hold or issue these derivative contracts for trading or speculative purposes. The interest rate on all of our variable rate debt is generally adjusted at one or three month intervals, subject to settlements under these interest rate hedge contracts.

Interest rate swaps involve the receipt of variable-rate amounts from a counterparty in exchange for making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount. The effective portion of changes in the fair value of derivatives designated and that qualify as cash flow hedges is recorded in accumulated other comprehensive income/(loss) and is subsequently reclassified into interest expense in the period that the hedged forecasted transaction affects earnings.
 
We account for terminated derivative instruments by recognizing the related accumulated comprehensive income/(loss) balance in current earnings, unless the hedged forecasted transaction continues as originally planned, in which case we continue to amortize the accumulated comprehensive income/(loss) into earnings over the originally designated hedge period.

Earnings Per Share and Per Unit
 
Basic earnings per share of the Company is computed by dividing net income available for common stockholders by the weighted Common Shares outstanding - basic. Diluted earnings per share is computed by dividing net income available to common stockholders (inclusive of noncontrolling interests in the Operating Partnership) by the weighted Common Shares outstanding - basic plus the dilutive effect of options, warrants and convertible securities outstanding, including Common Units, using the treasury stock method. Weighted Common Shares outstanding - basic includes all unvested restricted stock where dividends received on such restricted stock are non-forfeitable.

Basic earnings per unit of the Operating Partnership is computed by dividing net income available for common unitholders by the weighted Common Units outstanding - basic. Diluted earnings per unit is computed by dividing net income available to common unitholders by the weighted Common Units outstanding - basic plus the dilutive effect of options and warrants, using the treasury stock method. Weighted Common Units outstanding - basic includes all of the Company's unvested restricted stock where distributions received on such restricted stock are non-forfeitable.
 

1.    Description of Business and Significant Accounting Policies – Continued
 
Recently Issued Accounting Standards
 
The Financial Accounting Standards Board ("FASB") issued an accounting standards update ("ASU") that superseded the revenue recognition requirements under previous guidance, which we adopted as of January 1, 2018. Several updates have been issued subsequently that are intended to promote a more consistent interpretation and application of the principles outlined in the ASU. The ASU requires the use of a new five-step model to recognize revenue from contracts with customers. The five-step model requires that we identify the contract with the customer, identify the performance obligations in the contract, determine the transaction price, allocate the transaction price to the performance obligations in the contract and recognize revenue when we satisfy the performance obligations. We are also required to disclose information regarding the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. In analyzing our contracts with customers, we determined that the most material potential impact from the adoption of this ASU would be in how revenue is recognized for sales of real estate with post sale involvement. Prior to the adoption of this ASU, profit for such sales transactions was recognized and then reduced by the maximum exposure to loss related to the nature of the post sale involvement at the time of sale. Upon adoption of this ASU, any post sale involvement must be accounted for as a separate performance obligation in the contract and a portion of the sales price allocated to each performance obligation. When the post sale involvement performance obligation is satisfied, the portion of the sales price allocated to it will be recognized. We had no sales of real estate with continuing involvement during the year ended December 31, 2018 or prior periods; however, we will use such methodology for any future real estate sales with continuing involvement. Our internal controls with respect to accounting for such sales have been updated accordingly. Adoption of this ASU resulted in no other changes with respect to the timing of revenue recognition or internal controls related to contracts such as management, development and construction fees and transient parking income, all of which are not material to our Consolidated Financial Statements. As such, there is no cumulative-effect adjustment from the adoption of this ASU reflected in our Consolidated Financial Statements.
 
The FASB issued an ASU that requires entities to show changes in total cash, cash equivalents, restricted cash and restricted cash equivalents in the statement of cash flows. As a result, restricted cash and restricted cash equivalents will be included with cash and cash equivalents when reconciling the beginning of period and end of period balances rather than presented as transfers between cash and cash equivalents and restricted cash and restricted cash equivalents in the statement of cash flows. We adopted the ASU as of January 1, 2018 with retrospective application to our Consolidated Statements of Cash Flows. Accordingly, our Consolidated Statements of Cash Flows present a reconciliation of the changes in cash and cash equivalents and restricted cash. The effect of the adoption resulted in a $55.9 million decrease in net cash used in investing activities for the year ended December 31, 2017 and a $12.4 million increase in net cash provided by investing activities for the year ended December 31, 2016.
 
The FASB issued an ASU that clarifies and narrows the definition of a business used in determining whether to account for a transaction as an asset acquisition or business combination. The guidance requires evaluation of the fair value of the assets acquired to determine if it is concentrated in a single identifiable asset or a group of similar identifiable assets. If so, the transferred assets would not be a business. The guidance also requires a business to include at least one substantive process and narrows the definition of outputs. We adopted the ASU prospectively as of January 1, 2018. We expect that the majority of our future acquisitions would not meet the definition of a business; therefore, the related acquisition costs would be capitalized as part of the purchase price.
 
The FASB issued an ASU that clarifies when changes to the terms or conditions of a share-based payment award must be accounted for as modifications. The guidance requires modification accounting if the value, vesting conditions or classification of the award changes. We adopted the ASU as of January 1, 2018 with no effect on our Consolidated Financial Statements.


1.    Description of Business and Significant Accounting Policies – Continued
 
The FASB issued an ASU that sets out the principles for the recognition, measurement, presentation and disclosure of leases for both lessees and lessors. The new standard requires lessors to account for leases using an approach that is substantially equivalent to existing guidance for sales-type leases, direct financing leases and operating leases. In addition, the guidance requires lessors to capitalize and amortize only incremental direct leasing costs. The new standard requires lessees to apply a dual approach, classifying leases as either finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase by the lessee. This classification will determine whether lease expense is recognized based on an effective interest method or on a straight-line basis over the term of the lease, respectively. A lessee is also required to record a right of use asset and a lease liability for all leases with a term of greater than a year regardless of their classification. Leases with a term of a year or less will be accounted for in the same manner as operating leases today. The guidance supersedes previously issued guidance under ASC Topic 840 “Leases.”

An entity may elect a package of practical expedients, which allows for the following:
 
An entity need not reassess whether any expired or existing contracts are or contain leases;
 
An entity need not reassess the lease classification for any expired or existing leases; and
 
An entity need not reassess initial direct costs for any existing leases.
 
This package of practical expedients is available as a single election that must be consistently applied to all existing leases at the date of adoption.

Furthermore, the FASB finalized an amendment that allows entities to present comparative periods, in the year of adoption, under ASC 840, which effectively allows for an initial date of adoption of January 1, 2019. The amendment also provides a practical expedient to lessors that removes the requirement to separate lease and non-lease components, provided certain conditions are met.

Our analysis of our leases indicates that the lease component is the predominant component, that the timing and pattern of transfer of our material non-lease components (primarily cost recovery income) are the same as the lease components and the lease component, if it were accounted for separately, would be classified as an operating lease. As such, we believe the adoption of the ASU will not significantly change the accounting or the related internal controls for rental and other revenues from operating leases where we are the lessor, and that such leases will be accounted for in a manner similar to existing standards with the underlying leased asset being reported and recognized as a real estate asset. Upon the adoption of the ASU, we will no longer capitalize and amortize certain leasing related costs and instead will expense these costs as incurred. Such capitalized costs have averaged approximately $2.5 million annually.

Leases where we are the lessee include primarily our operating ground leases. We currently believe that existing ground leases executed before the adoption date will continue to be accounted for as operating leases and the new guidance will not have a material impact on our recognition of ground lease expense or our results of operations. However, we will be required to recognize a right of use asset and a lease liability on our Consolidated Balance Sheets equal to the present value of the minimum lease payments required under each ground lease, which we believe will range from $31 million to $36 million. See Note 7 for information regarding our ground lease commitments.

We will adopt the new ASU effective January 1, 2019 using the modified retrospective approach and will elect the use of all practical expedients provided by the ASU and related amendments as mentioned above.

The FASB issued an ASU that eliminates the requirement to separately measure and report hedge ineffectiveness and generally requires the entire change in the fair value of a hedging instrument to be presented in the same income statement line as the hedged item when the hedged item affects earnings. The ASU is required to be adopted in 2019 using a modified retrospective approach. We do not expect such adoption to have a material effect on our Consolidated Financial Statements.

1.    Description of Business and Significant Accounting Policies – Continued
 
The FASB issued an ASU that requires, among other things, the use of a new current expected credit loss ("CECL") model in determining our allowances for doubtful accounts with respect to accounts receivable, accrued straight-line rents receivable and mortgages and notes receivable. The FASB recently finalized its proposal to exclude operating lease receivables from the scope of this ASU. As such, we do not expect the adoption of this ASU in 2020 to have a material effect on our Consolidated Financial Statements.

The FASB issued an ASU that changes certain disclosure requirements for fair value measurements. The ASU is required to be adopted in 2020 and applied prospectively. We do not expect such adoption to have a material effect on our Notes to Consolidated Financial Statements.
v3.10.0.1
Real Estate Assets
12 Months Ended
Dec. 31, 2018
Real Estate [Abstract]  
Real Estate Assets
Real Estate Assets
 
Acquisitions

During 2018, we acquired two development parcels totaling approximately nine acres in Nashville for an aggregate purchase price, including capitalized acquisition costs, of $50.6 million.

During 2017, we acquired fee simple title to land in Raleigh that was previously subject to a ground lease for a purchase price, including capitalized acquisition costs and contingent consideration, of $2.6 million.

During 2016, we acquired a building in Raleigh, which encompasses 243,000 rentable square feet, for a net purchase price of $76.9 million. We expensed $0.3 million of acquisition costs (included in general and administrative expenses) related to this acquisition. The assets acquired and liabilities assumed were recorded at fair value as determined by management, with the assistance of third party specialists, based on information available at the acquisition date and on current assumptions as to future operations.

During 2016, we also acquired:

fee simple title to the land underneath one of our buildings in Pittsburgh that was previously subject to a ground lease for a purchase price of $18.5 million. We expensed $0.5 million of acquisition costs (included in general and administrative expenses) related to this acquisition;

an acre of development land in Raleigh for a purchase price, including capitalized acquisition costs, of $5.8 million; and

14 acres of development land in Nashville for a purchase price, including capitalized acquisition costs, of $9.1 million.

Dispositions

During 2018, we sold a total of three buildings and various land parcels for an aggregate sale price of $90.6 million and recorded aggregate gains on disposition of property of $37.6 million.
 
During 2017, we sold a total of 15 buildings and land for an aggregate sale price of $135.6 million (before closing credits to buyer of $3.7 million) and recorded aggregate gains on disposition of property of $54.2 million.

During 2016, we sold:

substantially all of our wholly-owned Country Club Plaza assets in Kansas City (which we refer to as the “Plaza assets”) for a sale price of $660.0 million (before closing credits to buyer of $4.8 million). We recorded gains on disposition of discontinued operations of $414.5 million and a gain on disposition of property of $1.3 million related to the land; and

2.     Real Estate Assets - Continued

a 32,000 square foot building for a sale price of $4.7 million (before closing credits to buyer of $0.1 million) and recorded a gain on disposition of property of $1.1 million. The buyer, which leased 79% of the building, is a family business controlled by a director of the Company. The sale price exceeded the value set forth in an appraisal performed by a reputable independent commercial real estate services firm that has no relationship with the director or any of his affiliates.

During 2016, we also sold two buildings and various land parcels for an aggregate sale price of $31.1 million (before closing credits to buyer of $0.5 million) and recorded aggregate gains on disposition of property of $12.4 million. We deferred $0.4 million of gain related to a land sale for a portion of the sale price that was escrowed for contingent future infrastructure work.

Impairments

We recorded aggregate impairments of real estate assets of $0.4 million and $1.4 million in 2018 and 2017, respectively. These impairments resulted from changes in market-based inputs and our assumptions about the use of the assets.
v3.10.0.1
Investments In and Advances To Affiliates
12 Months Ended
Dec. 31, 2018
Equity Method Investments and Joint Ventures [Abstract]  
Investments In and Advances To Affiliates
Investments in and Advances to Affiliates
 
Unconsolidated Affiliates
 
We have equity interests of up to 50.0% in various joint ventures with unrelated third parties that are accounted for using the equity method of accounting because we have the ability to exercise significant influence over the operating and financial policies of the joint venture investment. The difference between the cost of these investments and the net book value of the underlying net assets was $0.6 million and $0.7 million at December 31, 2018 and 2017, respectively.
 
The following table sets forth our ownership in unconsolidated affiliates at December 31, 2018:
 
Joint Venture
 
Location
 
Ownership
Interest
Plaza Colonnade, Tenant-in-Common
 
Kansas City
 
50.0%
Kessinger/Hunter & Company, LC
 
Kansas City
 
26.5%
Highwoods DLF Forum, LLC
 
Raleigh
 
25.0%
Highwoods DLF 98/29, LLC
 
Orlando
 
22.8%

We receive development, management and leasing fees for services provided to certain of our joint ventures. These fees are recognized in income to the extent of our respective joint venture partner's interest. During the years ended December 31, 2018, 2017 and 2016, we recognized $0.4 million, $1.4 million and $0.8 million, respectively, of development/construction, management and leasing fees from our unconsolidated joint ventures. At both December 31, 2018 and 2017, we had receivables of $0.1 million related to these fees in accounts receivable.
 
Consolidated Affiliates
 
We have a 50.0% ownership interest in Highwoods-Markel Associates, LLC (“Markel”), a consolidated joint venture. We are the manager and leasing agent for Markel's properties, which are located in Richmond in exchange for customary management and leasing fees. We consolidate Markel since we are the managing member and control the major operating and financial policies of the entity. As controlling member, we have an obligation to cause this property-owning entity to distribute proceeds of liquidation to the noncontrolling interest member in these partially owned properties only if the net proceeds received by the entity from the sale of any of Markel's assets warrant a distribution as determined by the agreement governing the joint venture. We estimate the value of such noncontrolling interest distributions would have been $30.1 million had the entity been liquidated at December 31, 2018. This estimated settlement value is based on the fair value of the underlying properties which is based on a number of assumptions that are subject to economic and market uncertainties including, among others, demand for space, competition for customers, changes in market rental rates and costs to operate each property. If the entity's underlying assets are worth less than the underlying liabilities on the date of such liquidation, we would have no obligation to remit any consideration to the noncontrolling interest holder.
v3.10.0.1
Intangible Assets and Below Market Leaes Liabilities
12 Months Ended
Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets and Below Market Lease Liabilities
Intangible Assets and Below Market Lease Liabilities

The following table sets forth total intangible assets and acquisition-related below market lease liabilities, net of accumulated amortization:
 
 
December 31,
 
2018
 
2017
Assets:
 
 
 
Deferred leasing costs (including lease incentives and above market lease and in-place lease acquisition-related intangible assets)
$
344,548

 
$
344,191

Less accumulated amortization
(149,275
)
 
(143,512
)
 
$
195,273

 
$
200,679

 
 
 
 
Liabilities (in accounts payable, accrued expenses and other liabilities):
 
 
 
Acquisition-related below market lease liabilities
$
57,955

 
$
59,947

Less accumulated amortization
(32,307
)
 
(28,214
)
 
$
25,648

 
$
31,733


The following table sets forth amortization of intangible assets and below market lease liabilities:
 
 
Year Ended December 31,
 
2018
 
2017
 
2016
Amortization of deferred leasing costs and acquisition-related intangible assets (in depreciation and amortization)
$
36,486

 
$
41,187

 
$
44,968

Amortization of lease incentives (in rental and other revenues)
$
1,908

 
$
1,765

 
$
1,779

Amortization of acquisition-related intangible assets (in rental and other revenues)
$
1,677

 
$
2,921

 
$
3,851

Amortization of acquisition-related intangible assets (in rental property and other expenses)
$
557

 
$
557

 
$
557

Amortization of acquisition-related below market lease liabilities (in rental and other revenues)
$
(6,085
)
 
$
(6,415
)
 
$
(8,183
)

The following table sets forth scheduled future amortization of intangible assets and below market lease liabilities:
 
Years Ending December 31,
 
Amortization
of Deferred Leasing Costs and Acquisition-Related Intangible Assets (in Depreciation and Amortization)
 
Amortization
of Lease Incentives (in Rental and Other Revenues)
 
Amortization
of Acquisition-Related Intangible Assets (in Rental and Other Revenues)
 
Amortization of Acquisition-Related Intangible Assets (in Rental Property and Other Expenses)
 
Amortization
of Acquisition-Related Below Market Lease Liabilities (in Rental and Other Revenues)
2019
 
$
35,862

 
$
1,730

 
$
1,261

 
$
553

 
$
(5,405
)
2020
 
31,285

 
1,445

 
957

 
514

 
(5,135
)
2021
 
26,702

 
1,205

 
631

 

 
(4,331
)
2022
 
22,392

 
982

 
462

 

 
(3,258
)
2023
 
18,972

 
914

 
308

 

 
(2,878
)
Thereafter
 
43,147

 
4,851

 
1,100

 

 
(4,641
)
 
 
$
178,360

 
$
11,127

 
$
4,719

 
$
1,067

 
$
(25,648
)
Weighted average remaining amortization periods as of December 31, 2018 (in years)
 
7.3

 
10.1

 
6.5

 
2.0

 
5.9

v3.10.0.1
Mortgages and Notes Payable
12 Months Ended
Dec. 31, 2018
Debt Disclosure [Abstract]  
Mortgages and Notes Payable
Mortgages and Notes Payable
 
Our mortgages and notes payable consist of the following:
 
 
December 31,
 
2018
 
2017
Secured indebtedness: (1)
 
 
 
4.00% mortgage loan due 2029
$
97,179

 
$
98,981

 
97,179

 
98,981

Unsecured indebtedness:
 
 
 
7.50% notes due 2018 (2)

 
200,000

3.20% (3.363% effective rate) notes due 2021 (3)
298,936

 
298,504

3.625% (3.752% effective rate) notes due 2023 (4)
248,938

 
248,675

3.875% (4.038% effective rate) notes due 2027 (5)
296,734

 
296,334

4.125% (4.271% effective rate) notes due 2028 (6)
346,208

 

Variable rate term loan due 2018 (2)

 
10,000

Variable rate term loan due 2020 (7)
225,000

 
225,000

Variable rate term loan due 2022 (8)
200,000

 
200,000

Variable rate term loan due 2022 (9)
200,000

 
200,000

Revolving credit facility due 2022 (10)
182,000

 
245,000

 
1,997,816

 
1,923,513

Less-unamortized debt issuance costs
(9,164
)
 
(8,161
)
Total mortgages and notes payable, net
$
2,085,831

 
$
2,014,333

__________
(1)
Our secured mortgage loan was collateralized by real estate assets with an undepreciated book value of $147.6 million at December 31, 2018. Our fixed rate mortgage loans generally are either locked out to prepayment for all or a portion of their term or are prepayable subject to certain conditions including prepayment penalties.
(2)
This debt was repaid in 2018.
(3)
Net of unamortized original issuance discount of $1.1 million and $1.5 million as of December 31, 2018 and 2017, respectively.
(4)
Net of unamortized original issuance discount of $1.1 million and $1.3 million as of December 31, 2018 and 2017, respectively.
(5)
Net of unamortized original issuance discount of $3.3 million and $3.7 million as of December 31, 2018 and 2017, respectively.
(6)
Net of unamortized original issuance discount of $3.8 million as of December 31, 2018.
(7)
As more fully described in Note 6, we entered into floating-to-fixed interest rate swaps that effectively fixed LIBOR for $225.0 million of this loan through January 11, 2019. Accordingly, the equivalent fixed rate of this amount was 2.78%.
(8)
As more fully described in Note 6, we entered into floating-to-fixed interest rate swaps that effectively fix LIBOR for $50.0 million of this loan through January 2022. Accordingly, the equivalent fixed rate of this amount is 2.79%. The interest rate on the remaining $150.0 million was 3.45% at December 31, 2018.
(9)
The interest rate was 3.61% at December 31, 2018.
(10)
The interest rate was 3.46% at December 31, 2018.

5.    Mortgages and Notes Payable - Continued

The following table sets forth scheduled future principal payments, including amortization, due on our mortgages and notes payable at December 31, 2018:

Years Ending December 31,
 
Principal Amount
2019
 
$
367

2020
 
225,444

2021
 
300,757

2022
 
583,038

2023
 
251,376

Thereafter
 
734,013

Less-unamortized debt issuance costs
 
(9,164
)
 
 
$
2,085,831


During 2017, we entered into a new $600.0 million unsecured revolving credit facility, which replaced our previously existing $475.0 million revolving credit facility, and includes an accordion feature that allows for an additional $400.0 million of borrowing capacity subject to additional lender commitments. Our new revolving credit facility is scheduled to mature in January 2022. Assuming no defaults have occurred, we have an option to extend the maturity for two additional six-month periods. The interest rate on the new facility at our current credit ratings is LIBOR plus 100 basis points and the annual facility fee is 20 basis points. The interest rate and facility fee are based on the higher of the publicly announced ratings from Moody's Investors Service or Standard & Poor’s Ratings Services. The financial and other covenants under the new facility are similar to our previous credit facility. We incurred $3.5 million of debt issuance costs, which will be amortized along with certain existing unamortized debt issuance costs over the remaining term of our new revolving credit facility. We recorded $0.1 million of loss on debt extinguishment. There was $182.0 million and $191.0 million outstanding under our new revolving credit facility at December 31, 2018 and January 25, 2019, respectively. At both December 31, 2018 and January 25, 2019, we had $0.2 million of outstanding letters of credit, which reduces the availability on our revolving credit facility. As a result, the unused capacity of our revolving credit facility at December 31, 2018 and January 25, 2019 was $417.8 million and $408.8 million, respectively.

During 2018, we paid off at maturity $200.0 million principal amount of 7.5% unsecured notes. We also paid down $1.8 million of secured loan balances through principal amortization during 2018.
 
During 2018, the Operating Partnership issued $350.0 million aggregate principal amount of 4.125% notes due 2028, less original issuance discount of $4.1 million. These notes were priced to yield 4.271%. Underwriting fees and other expenses were incurred that aggregated $2.9 million; these costs were deferred and will be amortized over the term of the notes.
 
During 2017, we prepaid without penalty a secured mortgage loan with a fair market value of $108.2 million with an effective interest rate of 4.22%. We recorded $0.4 million of gain on debt extinguishment related to this prepayment.

During 2017, we modified our $200.0 million, five-year unsecured bank term loan, which was originally scheduled to mature in January 2019. The modified term loan is now scheduled to mature in November 2022 and the interest rate, based on current credit ratings, was reduced from LIBOR plus 120 basis points to LIBOR plus 110 basis points. We incurred $1.1 million of debt issuance costs, which will be amortized along with certain existing unamortized debt issuance costs over the remaining term of the modified loan. We recorded $0.4 million of loss on debt extinguishment.

During 2017, we obtained a $100.0 million secured mortgage loan from a third party lender with an effective interest rate of 4.0%. This loan is scheduled to mature in May 2029. We incurred $0.8 million of debt issuance costs in connection with this loan, which will be amortized over the term of the loan.

5.    Mortgages and Notes Payable - Continued
 
During 2017, the Operating Partnership issued $300.0 million aggregate principal amount of 3.875% notes due 2027, less original issuance discount of $4.0 million. These notes were priced to yield 4.038%. Underwriting fees and other expenses were incurred that aggregated $2.5 million; these costs were deferred and will be amortized over the term of the notes.

During 2017, we paid off at maturity $379.7 million principal amount of 5.85% unsecured notes.

We previously amended our $225.0 million, seven-year unsecured bank term loan, which was scheduled to mature in January 2019. We increased the borrowed amount to $350.0 million. The amended term loan is scheduled to mature in June 2020 and the interest rate, based on our current credit ratings, was reduced from LIBOR plus 175 basis points to LIBOR plus 110 basis points. We incurred $1.3 million of debt issuance costs in connection with this amendment, which will be amortized along with existing unamortized debt issuance costs over the remaining term of the new loan. During 2017, we prepaid without penalty $125.0 million on this $350.0 million unsecured bank term loan. We recorded $0.4 million of loss on debt extinguishment related to this prepayment.

We previously acquired our joint venture partner’s 77.2% interest in a building in Orlando. Simultaneously with this acquisition, the joint venture's previously existing mortgage note was restructured into a new $18.0 million first mortgage note and a $10.2 million subordinated note, both of which were scheduled to mature in July 2017. The first mortgage and subordinated notes had effective interest rates of 5.36% and 8.6%, respectively. The subordinated note and accrued interest thereon was satisfied upon payment of a "waterfall payment." During 2017, both notes were retired upon payment of the $18.0 million principal balance on the first mortgage note and a $0.5 million waterfall payment relating to the subordinated note, which resulted in $0.4 million of gain on debt extinguishment.
 
During 2016, we prepaid without penalty the remaining $43.6 million balance on a secured mortgage loan with an effective interest rate of 7.5% that was originally scheduled to mature in August 2016.

During 2016, we borrowed an aggregate of $150.0 million under an unsecured bank term loan that is originally scheduled to mature in January 2022. The interest rate on the term loan at our current credit ratings is LIBOR plus 110 basis points. During 2017, we amended our $150.0 million unsecured bank term loan by increasing the borrowed amount to $200.0 million. We incurred $0.3 million of debt issuance costs in connection with this amendment, which will be amortized along with existing unamortized debt issuance costs over the remaining term.

We previously obtained a $350.0 million, six-month unsecured bridge facility. The interest rate on the bridge facility at our current credit ratings was LIBOR plus 110 basis points. During 2016, we prepaid without penalty the full balance on this unsecured bridge facility.

Our revolving credit facility and bank term loans require us to comply with customary operating covenants and various financial requirements. Upon an event of default on the revolving credit facility, the lenders having at least 51.0% of the total commitments under the revolving credit facility can accelerate all borrowings then outstanding, and we could be prohibited from borrowing any further amounts under our revolving credit facility, which would adversely affect our ability to fund our operations. In addition, certain of our unsecured debt agreements contain cross-default provisions giving the unsecured lenders the right to declare a default if we are in default under more than $30.0 million with respect to other loans in some circumstances.

We are currently in compliance with financial covenants with respect to our consolidated debt.


5.    Mortgages and Notes Payable - Continued

The Operating Partnership has $298.9 million carrying amount of 2021 notes outstanding, $248.9 million carrying amount of 2023 notes outstanding, $296.7 million carrying amount of 2027 notes outstanding and $346.2 million carrying amount of 2028 notes outstanding. The indenture that governs these outstanding notes requires us to comply with customary operating covenants and various financial ratios. The trustee or the holders of at least 25.0% in principal amount of any series of notes can accelerate the principal amount of such series upon written notice of a default that remains uncured after 60 days.
 
We have considered our short-term liquidity needs and the adequacy of our estimated cash flows from operating activities and other available financing sources to meet these needs. We intend to meet these short-term liquidity requirements through a combination of the following:
 
available cash and cash equivalents;
 
cash flows from operating activities;
 
issuance of debt securities by the Operating Partnership (some of which debt securities may be hedged to a fixed interest rate pursuant to the forward-starting swaps referred to in Note 6);
 
issuance of secured debt;
 
bank term loans;
 
borrowings under our revolving credit facility;
 
issuance of equity securities by the Company or the Operating Partnership; and
 
the disposition of non-core assets.

Capitalized Interest
 
Total interest capitalized to development and significant building and tenant improvement projects was $6.7 million, $8.8 million and $8.2 million for the years ended December 31, 2018, 2017 and 2016, respectively.
v3.10.0.1
Derivative Financial Instruments
12 Months Ended
Dec. 31, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Derivative Financial Instruments
Derivative Financial Instruments

During 2018, we entered into an aggregate of $225.0 million notional amount of forward-starting swaps that effectively lock the underlying 10-year treasury rate at a weighted average of 2.86% with respect to a planned issuance of debt securities by the Operating Partnership expected to occur prior to June 11, 2019.

During 2017, we entered into $150.0 million notional amount of forward-starting swaps that effectively locked the underlying 10-year treasury rate at 2.44% with respect to a planned issuance of debt securities by the Operating Partnership. Upon issuance of the $350.0 million aggregate principal amount of 4.125% notes due 2028 during 2018, we terminated the forward-starting swaps and received cash upon settlement. The unrealized gain of $7.0 million in accumulated other comprehensive income will be reclassified to interest expense as interest payments are made on the debt and a gain of $0.2 million of hedge ineffectiveness was recognized in interest expense.

During 2017, we also entered into floating-to-fixed interest rate swaps through January 2022 with respect to an aggregate of $50.0 million LIBOR-based borrowings. These swaps effectively fix the underlying one-month LIBOR rate at a weighted average rate of 1.693%.

During 2016, we entered into $150.0 million notional amount of forward-starting swaps that effectively locked the underlying 10-year treasury rate at 1.90% with respect to a planned issuance of debt securities by the Operating Partnership. Upon issuance of the $300.0 million aggregate principal amount of 3.875% notes due 2027 during 2017, we terminated the forward-starting swaps
and received cash upon settlement. The unrealized gain of $7.3 million in accumulated other comprehensive income will be reclassified to interest expense as interest payments are made on the debt.


6.
Derivative Financial Instruments - Continued

We also had floating-to-fixed interest rate swaps through January 11, 2019 with respect to an aggregate of $225.0 million LIBOR-based borrowings. These swaps effectively fixed the underlying one-month LIBOR rate at a weighted average rate of 1.678%.

The counterparties under our swaps are major financial institutions. The swap agreements contain a provision whereby if we default on certain of our indebtedness and which default results in repayment of such indebtedness being, or becoming capable of being, accelerated by the lender, then we could also be declared in default on our swaps.

Our interest rate swaps have been designated as and are being accounted for as cash flow hedges with the effective portion of changes in fair value recorded in other comprehensive income each reporting period. No significant gain or loss was recognized related to hedge ineffectiveness or to amounts excluded from effectiveness testing on our cash flow hedges during the years ended December 31, 2018 and 2017. We have no collateral requirements related to our interest rate swaps.

Amounts reported in accumulated other comprehensive income related to derivatives will be reclassified to interest expense as interest payments are made on our debt. During 2019, we estimate that $1.6 million will be reclassified as a net decrease to interest expense.

The following table sets forth the gross fair value of our derivatives:

 
December 31,
 
2018
 
2017
Derivatives:
 
 
 
Derivatives designated as cash flow hedges in prepaid expenses and other assets:
 
 
 
Interest rate swaps
$
1,146

 
$
1,286

Derivatives designated as cash flow hedges in accounts payable, accrued expenses and other liabilities:
 
 
 
Interest rate swaps

$
3,581

 
$



The following table sets forth the effect of our cash flow hedges on accumulated other comprehensive income and interest expense:

 
Year Ended December 31,
 
2018
 
2017
 
2016
Derivatives Designated as Cash Flow Hedges:
 
 
 
 
 
Amount of unrealized gains recognized in accumulated other comprehensive income on derivatives (effective portion):
 
 
 
 
 
Interest rate swaps
$
4,161

 
$
1,732

 
$
5,703

Amount of (gains)/losses reclassified out of accumulated other comprehensive income into contractual interest expense (effective portion):
 
 
 
 
 
Interest rate swaps
$
(2,086
)
 
$
1,157

 
$
3,057

v3.10.0.1
Commitments and Contingencies
12 Months Ended
Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]  
Commitments and Contingencies
Commitments and Contingencies
 
Operating Ground Leases
 
Certain of our properties are subject to operating ground leases. Rental payments on these leases are adjusted periodically based on either the consumer price index or on a pre-determined schedule. Total rental property expense recorded for operating ground leases was $2.5 million, $2.5 million and $2.9 million for the years ended December 31, 2018, 2017 and 2016, respectively.
 
The following table sets forth our scheduled obligations for future minimum payments on operating ground leases at December 31, 2018:
 
Years Ending December 31,
 
Minimum Payments
2019
 
$
2,184

2020
 
2,223

2021
 
2,263

2022
 
2,305

2023
 
2,308

Thereafter
 
86,577

 
 
$
97,860

Lease and Contractual Commitments
 
We have $484.8 million of lease and contractual commitments at December 31, 2018. Lease and contractual commitments represent commitments under signed leases and contracts for operating properties (excluding tenant-funded tenant improvements) and contracts for development/redevelopment projects, of which $60.4 million was recorded on our Consolidated Balance Sheets at December 31, 2018.

Contingent Consideration
 
We had $5.0 million at both December 31, 2018 and 2017 of contingent consideration related to certain parcels of acquired development land in Raleigh, Atlanta and Nashville. The contingent consideration for each is payable in cash to a third party if and to the extent future development milestones as outlined in the purchase agreements are met.

Environmental Matters
 
Substantially all of our in-service and development properties have been subjected to Phase I environmental assessments and, in certain instances, Phase II environmental assessments. Such assessments and/or updates have not revealed, nor are we aware of, any environmental liability that we believe would have a material adverse effect on our Consolidated Financial Statements.
 
Litigation, Claims and Assessments
 
We are from time to time a party to a variety of legal proceedings, claims and assessments arising in the ordinary course of our business. We regularly assess the liabilities and contingencies in connection with these matters based on the latest information available. For those matters where it is probable that we have incurred or will incur a loss and the loss or range of loss can be reasonably estimated, the estimated loss is accrued and charged to income in our Consolidated Financial Statements. In other instances, because of the uncertainties related to both the probable outcome and amount or range of loss, a reasonable estimate of liability, if any, cannot be made. Based on the current expected outcome of such matters, none of these proceedings, claims or assessments is expected to have a material effect on our business, financial condition, results of operations or cash flows.
v3.10.0.1
Noncontrolling Interests
12 Months Ended
Dec. 31, 2018
Noncontrolling Interest [Abstract]  
Noncontrolling Interests
Noncontrolling Interests

Noncontrolling Interests in Consolidated Affiliates

At December 31, 2018, our noncontrolling interests in consolidated affiliates relate to our joint venture partner's 50.0% interest in office properties in Richmond. Our joint venture partner is an unrelated third party.

Noncontrolling Interests in the Operating Partnership

Noncontrolling interests in the Operating Partnership relate to the ownership of Redeemable Common Units. Net income attributable to noncontrolling interests in the Operating Partnership is computed by applying the weighted average percentage of Redeemable Common Units during the period, as a percent of the total number of outstanding Common Units, to the Operating Partnership’s net income for the period after deducting distributions on Preferred Units. When a noncontrolling unitholder redeems a Common Unit for a share of Common Stock or cash, the noncontrolling interests in the Operating Partnership are reduced and the Company’s share in the Operating Partnership is increased by the fair value of each security at the time of redemption.

The following table sets forth the Company's noncontrolling interests in the Operating Partnership:

 
Year Ended December 31,
 
2018
 
2017
Beginning noncontrolling interests in the Operating Partnership
$
144,009

 
$
144,802

Adjustment of noncontrolling interests in the Operating Partnership to fair value
(33,427
)
 
(354
)
Conversions of Common Units to Common Stock
(4,043
)
 
(511
)
Net income attributable to noncontrolling interests in the Operating Partnership
4,588

 
5,059

Distributions to noncontrolling interests in the Operating Partnership
(5,167
)
 
(4,987
)
Total noncontrolling interests in the Operating Partnership
$
105,960

 
$
144,009


The following table sets forth net income available for common stockholders and transfers from the Company's noncontrolling interests in the Operating Partnership:

 
Year Ended December 31,
 
2018
 
2017
 
2016
Net income available for common stockholders
$
169,343

 
$
182,873

 
$
521,789

Increase in additional paid in capital from conversions of Common Units to Common Stock
4,043

 
511

 
3,057

Change from net income available for common stockholders and transfers from noncontrolling interests
$
173,386

 
$
183,384

 
$
524,846

v3.10.0.1
Disclosure About Fair Value of Financial Instruments
12 Months Ended
Dec. 31, 2018
Fair Value Disclosures [Abstract]  
Disclosure About Fair Value of Financial Instruments
Disclosure About Fair Value of Financial Instruments

The following summarizes the levels of inputs that we use to measure fair value.

Level 1.  Quoted prices in active markets for identical assets or liabilities.

Our Level 1 asset is our investment in marketable securities that we use to pay benefits under our non-qualified deferred compensation plan. Our Level 1 liability is our non-qualified deferred compensation obligation. The Company's Level 1 noncontrolling interests in the Operating Partnership relate to the ownership of Common Units by various individuals and entities other than the Company.

Level 2. Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the related assets or liabilities.

Our Level 2 assets include the fair value of our mortgages and notes receivable and certain interest rate swaps. Our Level 2 liabilities include the fair value of our mortgages and notes payable and remaining interest rate swaps.

The fair value of mortgages and notes receivable and mortgages and notes payable is estimated by the income approach utilizing contractual cash flows and market-based interest rates to approximate the price that would be paid in an orderly transaction between market participants. The fair value of interest rate swaps is determined using the market standard methodology of netting the discounted future fixed cash receipts and the discounted expected variable cash payments. The variable cash payments of interest rate swaps are based on the expectation of future interest rates (forward curves) derived from observed market interest rate curves. In addition, credit valuation adjustments are considered in the fair values to account for potential nonperformance risk, but were concluded to not be significant inputs to the calculation for the periods presented.

Level 3. Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.
 
Our Level 3 assets include any real estate assets recorded at fair value on a non-recurring basis as a result of our quarterly impairment analysis, which are valued using the terms of definitive sales contracts or the sales comparison approach.

9.
Disclosure About Fair Value of Financial Instruments - Continued

The following table sets forth our assets and liabilities and the Company's noncontrolling interests in the Operating Partnership that are measured or disclosed at fair value within the fair value hierarchy.
 
 
 
 
Level 1
 
Level 2
 
Level 3
 
Total
 
Quoted Prices
in Active
Markets for Identical Assets or Liabilities
 
Significant Observable Inputs
 
Significant Unobservable Inputs
Fair Value at December 31, 2018:
 
 
 
 
 
 
 
Assets:
 
 
 
 
 
 
 
Mortgages and notes receivable, at fair value (1)
$
5,599

 
$

 
$
5,599

 
$

Interest rate swaps (in prepaid expenses and other assets)
1,146

 

 
1,146

 

Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets)
1,849

 
1,849

 

 

Impaired real estate assets
10,252

 

 

 
10,252

Total Assets
$
18,846

 
$
1,849

 
$
6,745

 
$
10,252

Noncontrolling Interests in the Operating Partnership
$
105,960

 
$
105,960

 
$

 
$

Liabilities:
 
 
 
 
 
 
 
Mortgages and notes payable, net, at fair value (1)
$
2,056,248

 
$

 
$
2,056,248

 
$

Interest rate swaps (in accounts payable, accrued expenses and other liabilities)
3,581

 

 
3,581

 

Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities)
1,849

 
1,849

 

 

Total Liabilities
$
2,061,678

 
$
1,849

 
$
2,059,829

 
$

Fair Value at December 31, 2017:
 
 
 
 
 
 
 
Assets:
 
 
 
 
 
 
 
Mortgages and notes receivable, at fair value (1)
$
6,425

 
$

 
$
6,425

 
$

Interest rate swaps (in prepaid expenses and other assets)
1,286

 

 
1,286

 

Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets)
2,388

 
2,388

 

 

Total Assets
$
10,099

 
$
2,388

 
$
7,711

 
$

Noncontrolling Interests in the Operating Partnership
$
144,009

 
$
144,009

 
$

 
$

Liabilities:
 
 
 
 
 
 
 
Mortgages and notes payable, net, at fair value (1)
$
2,015,689

 
$

 
$
2,015,689

 
$

Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities)
2,388

 
2,388

 

 

Total Liabilities
$
2,018,077

 
$
2,388

 
$
2,015,689

 
$


__________
(1)    Amounts recorded at historical cost on our Consolidated Balance Sheets at December 31, 2018 and 2017.

The impaired real estate assets that were measured in the fourth quarter of 2018 and the third quarter of 2017 at fair values of $10.3 million and $5.9 million, respectively, and deemed to be Level 3 assets were valued based primarily on market-based inputs and our assumptions about the use of the assets, as observable inputs were not available. In the absence of observable inputs, we estimate the fair value of real estate using unobservable local and national industry market data such as comparable sales, sales contracts and appraisals to assist us in our estimation of fair value. Significant increases or decreases in any valuation inputs in isolation would result in a significantly lower or higher fair value measurement.
v3.10.0.1
Equity
12 Months Ended
Dec. 31, 2018
Equity [Abstract]  
Equity
Equity
 
Common Stock Issuances
 
During 2017, the Company issued 1,363,919 shares of Common Stock in public offerings and received net proceeds of $68.3 million. At December 31, 2018, the Company had 96.4 million remaining shares of Common Stock authorized to be issued under its charter.

Common Stock Dividends
 
Dividends of the Company declared per share of Common Stock aggregated $1.85, $1.76 and $2.50 for the years ended December 31, 2018, 2017 and 2016, respectively. Dividends declared in 2016 included a special cash dividend of $0.80 per share declared in the quarter ended December 31, 2016 and paid January 10, 2017. The principal purpose of the special dividend was to distribute taxable capital gains associated with the sales of the Plaza assets in 2016.

The following table sets forth the Company's estimated taxability to the common stockholders of dividends per share for federal income tax purposes:
 
 
Year Ended December 31,
 
2018
 
2017 (1)
 
2016 (1)
Ordinary income
$
1.48

 
$
1.50

 
$
1.15

Capital gains
0.31

 
0.32

 
1.29

Return of capital
0.06

 

 

Total
$
1.85

 
$
1.82

 
$
2.44

__________
(1)
During 2016, cash dividends declared on Common Stock totaled $2.50 per share, of which approximately $0.06 was recognized as a 2017 distribution for federal income tax purposes.

The Company's tax returns have not been examined by the Internal Revenue Service (“IRS”) and, therefore, the taxability of dividends is subject to change.
 
Preferred Stock
 
The following table sets forth the Company's Preferred Stock:
 
 
 
Issue Date
 
Number of Shares Outstanding
 
Carrying Value
 
Liquidation Preference Per Share
 
Optional Redemption Date
 
Annual Dividends Payable Per Share
 
 
 
 
(in thousands)
 
 
 
 
 
 
 
 
December 31, 2018
 
 
 
 
 
 
 
 
 
 
 
 
8.625% Series A Cumulative Redeemable
 
2/12/1997
 
29

 
$
28,877

 
$
1,000

 
2/12/2027
 
$
86.25

December 31, 2017
 
 
 
 
 
 
 
 
 
 
 
 
8.625% Series A Cumulative Redeemable
 
2/12/1997
 
29

 
$
28,892

 
$
1,000

 
2/12/2027
 
$
86.25



10.
Equity - Continued

The following table sets forth the Company's estimated taxability to the preferred stockholders of dividends per share for federal income tax purposes:
 
 
Year Ended December 31,
 
2018
 
2017
 
2016
8.625% Series A Cumulative Redeemable:
 
 
 
 
 
Ordinary income
$
71.22

 
$
71.00

 
$
40.65

Capital gains
15.03

 
15.25

 
45.60

Total
$
86.25

 
$
86.25

 
$
86.25


The Company's tax returns have not been examined by the IRS and, therefore, the taxability of dividends is subject to change.

Warrants
 
At December 31, 2018 and 2017, we had 15,000 warrants outstanding with an exercise price of $32.50 per share. Upon exercise of a warrant, the Company will contribute the exercise price to the Operating Partnership in exchange for Common Units. Therefore, the Operating Partnership accounts for such warrants as if issued by the Operating Partnership. These warrants have no expiration date.

Common Unit Distributions

Distributions of the Operating Partnership declared per Common Unit aggregated $1.85, $1.76 and $2.50 for the years ended December 31, 2018, 2017 and 2016, respectively. Distributions declared in 2016 included a special cash distribution of $0.80 per unit declared in the quarter ended December 31, 2016 and paid January 10, 2017. The principal purpose of the special distribution was to distribute taxable capital gains associated with the sales of the Plaza assets in 2016.

Redeemable Common Units
 
Generally, the Operating Partnership is obligated to redeem each Redeemable Common Unit at the request of the holder thereof for cash equal to the value of one share of Common Stock based on the average of the market price for the 10 trading days immediately preceding the notice date of such redemption, provided that the Company, at its option, may elect to acquire any such Redeemable Common Unit presented for redemption for cash or one share of Common Stock. When a holder redeems a Redeemable Common Unit for a share of Common Stock or cash, the Company’s share in the Operating Partnership will be increased. The Common Units owned by the Company are not redeemable.
 
Preferred Units
 
The following table sets forth the Operating Partnership's Preferred Units:
 
 
 
Issue Date
 
Number of
Units
Outstanding
 
Carrying
Value
 
Liquidation Preference
Per Unit
 
Optional Redemption
Date
 
Annual
Distributions
Payable
Per Unit
 
 
 
 
(in thousands)
 
 
 
 
 
 
 
 
December 31, 2018
 
 
 
 
 
 
 
 
 
 
 
 
8.625% Series A Cumulative Redeemable
 
2/12/1997
 
29

 
$
28,877

 
$
1,000

 
2/12/2027
 
$
86.25

December 31, 2017
 
 
 
 
 
 
 
 
 
 
 
 
8.625% Series A Cumulative Redeemable
 
2/12/1997
 
29

 
$
28,892

 
$
1,000

 
2/12/2027
 
$
86.25

v3.10.0.1
Employee Benefit Plans
12 Months Ended
Dec. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Employee Benefit Plans
Employee Benefit Plans
 
Officer, Management and Director Compensation Programs
 
Officers of the Company participate in an annual non-equity incentive program pursuant to which they are eligible to earn cash payments based on a percentage of their annual base salary in effect for December of the applicable year. Under this component of our executive compensation program, officers are eligible to earn additional cash compensation to the extent specific performance-based metrics are achieved during the most recently completed year. The position held by each officer has a target annual incentive percentage that ranges from 35% to 135% of base salary. The more senior the position, the greater the portion of compensation that varies with performance.
 
The percentage amount an officer may earn under the annual non-equity incentive plan is the product of the target annual incentive percentage times an “actual performance factor,” which can range from zero to 200%. The actual performance factor depends upon the relationship between actual performance in specific areas at each of our divisions and predetermined goals. For corporate officers, the actual performance factor is based on the goals and criteria applied to the Company’s performance as a whole. For officers who oversee our divisions, the actual performance factor is based on the goals and criteria applied partly to that division’s performance and partly to the Company’s performance overall. Amounts under our annual non-equity incentive plan are accrued and expensed in the year earned, but are typically paid early in the following year.
 
Certain other employees participate in a similar annual non-equity incentive program. Incentive eligibility ranges from 6% to 30% of annual base salary. The actual incentive payment is determined by a mix of the Company's overall performance, the performance of any applicable division and the individual’s performance during each year. These amounts are also accrued and expensed in the year earned, but are typically paid early in the following year.
 
The Company's officers are eligible to receive a mix of long-term equity incentive awards on or about March 1 of each year. Prior to 2018, the mix generally consisted of stock options, time-based restricted stock and total return-based restricted stock. In 2018, the mix consisted of time-based restricted stock and total return-based restricted stock. Time-based restricted stock grants are also made annually to directors and certain other employees. Dividends received on restricted stock are non-forfeitable and are paid at the same rate and on the same date as on shares of Common Stock, except that, with respect to shares of total return-based restricted stock issued to the Company's chief executive officer, dividends accumulate and are payable only if and to the extent the shares vest. Dividends paid on subsequently forfeited shares are expensed. Additional shares of total return-based restricted stock may be issued at the end of the applicable measurement periods if and to the extent actual performance exceeds certain levels of performance. Such additional shares, if any, would be fully vested when issued. No expense is recorded for additional shares of total return-based restricted stock that may be issued at the end of the applicable measurement period since that possibility is reflected in the grant date fair value. The following table sets forth the number of shares of Common Stock reserved for future issuance under the Company's long-term equity incentive plans:
 
December 31,
 
2018
 
2017
Outstanding stock options and warrants
611,518

 
655,822

Possible future issuance under equity incentive plans
2,188,696

 
2,404,131

 
2,800,214

 
3,059,953



Of the possible future issuance under the Company' long-term equity incentive plans at December 31, 2018, no more than an additional 0.6 million shares can be in the form of restricted stock.

During the years ended December 31, 2018, 2017 and 2016, we recognized $7.5 million, $6.7 million and $6.3 million, respectively, of share-based compensation expense. Because REITs generally do not pay income taxes, we do not realize tax benefits on share-based payments. At December 31, 2018, there was $4.7 million of total unrecognized share-based compensation costs, which will be recognized over a weighted average remaining contractual term of 2.2 years.

11.
Employee Benefit Plans - Continued

- Stock Options

Stock options issued from 2014 through 2017 vest ratably on an annual basis over four years and expire after 10 years. Stock options issued in 2012 and 2013 vest ratably on an annual basis over four years and expire after seven years. All stock options have an exercise price equal to the last reported stock price of our Common Stock on the New York Stock Exchange on the last trading day prior to grant. The value of all options as of the date of grant is calculated using the Black-Scholes option-pricing model and is amortized over the respective vesting period or the service period, if shorter, for employees who are or will become eligible under the Company's retirement plan. The weighted average fair values of options granted during 2017 and 2016 were $6.72 and $4.61, respectively, per option. The fair values of the options granted were determined at the grant dates using the following assumptions:

 
2017
 
2016
Risk free interest rate (1) 
2.0
%
 
1.4
%
Common stock dividend yield (2) 
3.4
%
 
3.9
%
Expected volatility (3) 
19.5
%
 
19.7
%
Average expected option life (years) (4)
5.75

 
5.75

__________
(1)
Represents the interest rate as of the grant date on US treasury bonds having the same life as the estimated life of the option grants.
(2)
The dividend yield is calculated utilizing the then current regular dividend rate for a one-year period and the per share price of Common Stock on the date of grant.
(3)
Based on the historical volatility of Common Stock over a period relevant to the related stock option grant.
(4)
The average expected option life is based on an analysis of the Company's historical data.

The following table sets forth stock option activity:

 
Options Outstanding
 
Number of Options
 
Weighted Average Exercise Price
Stock options outstanding at December 31, 2015
687,228

 
$
37.97

Granted
244,664

 
43.55

Canceled
(14,743
)
 
42.64

Exercised
(330,034
)
 
34.26

Stock options outstanding at December 31, 2016
587,115

 
42.26

Granted
168,748

 
52.49

Exercised
(115,041
)
 
40.41

Stock options outstanding at December 31, 2017
640,822

 
45.29

Exercised
(44,304
)
 
40.15

Stock options outstanding at December 31, 2018 (1) (2)
596,518

 
$
45.67

__________
(1)
The outstanding options at December 31, 2018 had a weighted average remaining life of 6.8 years.
(2)
The Company had 303,674 options exercisable at December 31, 2018 with a weighted average exercise price of $43.67, weighted average remaining life of 6.2 years and intrinsic value of $0.1 million. Of these exercisable options, 217,386 had exercise prices higher than the market price of our Common Stock at December 31, 2018.

11.
Employee Benefit Plans - Continued

Cash received or receivable from options exercised was $1.9 million, $5.2 million and $13.4 million for the years ended December 31, 2018, 2017 and 2016, respectively. The total intrinsic value of options exercised during the years ended December 31, 2018, 2017 and 2016 was $0.4 million, $1.3 million and $4.8 million, respectively. The total intrinsic value of options outstanding at December 31, 2018, 2017 and 2016 was $0.1 million, $3.9 million and $5.1 million, respectively. The Company generally does not permit the net cash settlement of exercised stock options, but does permit net share settlement so long as the shares received are held for at least a year. The Company has a practice of issuing new shares to satisfy stock option exercises.

- Time-Based Restricted Stock

Shares of time-based restricted stock vest ratably on an annual basis over four years. The value of grants of time-based restricted stock is based on the market value of Common Stock as of the date of grant and is amortized to expense over the respective vesting period or the service period, if shorter, for employees who are or will become eligible under the Company's retirement plan.

The following table sets forth time-based restricted stock activity:
 
 
Number of Shares
 
Weighted Average Grant Date Fair Value
Restricted shares outstanding at December 31, 2015
204,720

 
$
39.74

Awarded and issued (1)
72,698

 
43.59

Vested (2)
(84,212
)
 
37.76

Forfeited
(4,225
)
 
41.96

Restricted shares outstanding at December 31, 2016
188,981

 
42.06

Awarded and issued (1)
61,404

 
52.49

Vested (2)
(78,139
)
 
40.55

Restricted shares outstanding at December 31, 2017
172,246

 
46.46

Awarded and issued (1)
94,984

 
43.01

Vested (2)
(73,307
)
 
44.19

Forfeited
(2,684
)
 
45.89

Restricted shares outstanding at December 31, 2018
191,239

 
$
45.62

__________
(1)
The weighted average fair value at grant date of time-based restricted stock issued during the years ended December 31, 2018, 2017 and 2016 was $4.1 million, $3.2 million and $3.2 million, respectively.
(2)
The vesting date fair value of time-based restricted stock that vested during the years ended December 31, 2018, 2017 and 2016 was $3.2 million, $4.1 million and $3.7 million, respectively. Vested shares include those shares surrendered by employees to satisfy tax withholding obligations in connection with such vesting.

11.
Employee Benefit Plans - Continued
 
- Total Return-Based Restricted Stock
 
Shares of total return-based restricted stock vest to the extent the Company's absolute total returns for certain pre-determined three-year periods exceed predetermined goals. The amount subject to vesting ranges from zero to 150%. Notwithstanding the Company’s absolute total return, if the Company’s total return exceeds 100% of the average peer group total return index, at least 75% of total return-based restricted stock issued will vest at the end of the applicable period. The weighted average grant date fair value of such shares of total return-based restricted stock issued in 2018, 2017 and 2016 was determined to be $40.81, $49.59 and $41.37, respectively, and is amortized over the respective three-year period or the service period, if shorter, for employees who are or will become eligible under the Company's retirement plan. The fair values of the total return-based restricted stock granted were determined at the grant dates using a Monte Carlo simulation model and the following assumptions:
 
 
2018
 
2017
 
2016
Risk free interest rate (1) 
2.3
%
 
1.6
%
 
0.9
%
Common stock dividend yield (2) 
3.9
%
 
3.5
%
 
4.1
%
Expected volatility (3) 
41.1
%
 
42.8
%
 
43.1
%
__________
(1)
Represents the interest rate as of the grant date on US treasury bonds having the same life as the estimated life of the total return-based restricted stock grants.
(2)
The dividend yield is calculated utilizing the then current regular dividend rate for a one-year period and the average per share price of Common Stock during the three-month period preceding the date of grant.
(3)
Based on the historical volatility of Common Stock over a period relevant to the related total return-based restricted stock grant.
The following table sets forth total return-based restricted stock activity:
 
 
Number of Shares
 
Weighted Average Grant Date Fair Value
Restricted shares outstanding at December 31, 2015
195,303

 
$
36.66

Awarded and issued (1) (3)
64,701

 
40.87

Vested (2) (3)
(71,617
)
 
36.50

Forfeited
(4,663
)
 
39.91

Restricted shares outstanding at December 31, 2016
183,724

 
39.82

Awarded and issued (1) (3)
84,013

 
44.76

Vested (2) (3)
(107,013
)
 
37.88

Restricted shares outstanding at December 31, 2017
160,724

 
44.72

Awarded and issued (1)
77,456

 
40.81

Vested (2)
(41,160
)
 
45.61

Forfeited (4)
(16,926
)
 
45.24

Restricted shares outstanding at December 31, 2018
180,094

 
$
43.34

__________
(1)
The fair value at grant date of total return-based restricted stock issued during the years ended December 31, 2018, 2017 and 2016 was $3.2 million, $2.4 million and $2.4 million, respectively, at target.
(2)
The vesting date fair value of total return-based restricted stock that vested during the years ended December 31, 2018, 2017 and 2016 was $1.8 million, $5.6 million and $3.1 million, respectively, based on the performance of the specific plans. Vested shares include those shares surrendered by employees to satisfy tax withholding obligations in connection with such vesting.
(3)
The 2017 and 2016 amounts include 34,669 and 6,647 additional shares, respectively, that were issued at the end of the applicable measurement period because actual performance exceeded certain levels of performance.
(4)
Includes 13,707 shares that were forfeited at the end of the applicable measurement period because the applicable total return did not meet the target level.

11.
Employee Benefit Plans - Continued

401(k) Retirement Savings Plan
 
We have a 401(k) Retirement Savings Plan covering substantially all employees who meet certain age and employment criteria. We contribute amounts for each participant at a rate of 75% of the employee’s contribution (up to 6% of each employee’s bi-weekly salary and cash incentives, subject to statutory limits). During the years ended December 31, 2018, 2017 and 2016, we contributed $1.4 million, $1.4 million and $1.3 million, respectively, to the 401(k) savings plan. The assets of this qualified plan are not included in our Consolidated Financial Statements since the assets are not owned by us.

Retirement Plan

The Company has a retirement plan for employees with at least 30 years of continuous service or are at least 55 years old with at least 10 years of continuous service. Subject to advance written notice and a non-compete agreement, eligible retirees would be entitled to receive a pro rata amount of any annual non-equity incentive compensation earned during the year of retirement and stock options and time-based restricted stock would be non-forfeitable and vest according to the terms of their original grants. Eligible retirees would also be entitled to retain any total return-based restricted stock that subsequently vests after the retirement date according to the terms of their original grants. For employees who meet the age and service eligibility requirements, 100% of their annual grants are expensed at the grant date as if fully vested. For employees who will meet the age and service eligibility requirements within the normal vesting periods, the grants are amortized over the shorter service period.

Deferred Compensation

Prior to 2010, officers could elect to defer all or a portion of their cash compensation, which was then invested in unrelated mutual funds under a non-qualified deferred compensation plan. These investments are recorded at fair value, which aggregated $1.8 million and $2.4 million at December 31, 2018 and 2017, respectively, and are included in prepaid expenses and other assets, with an offsetting deferred compensation liability recorded in accounts payable, accrued expenses and other liabilities. Deferred amounts ultimately payable to the participants are based on the value of the related mutual fund investments. Accordingly, changes in the value of the unrelated mutual funds are recorded in interest and other income and the corresponding offsetting changes in the deferred compensation liability are recorded in general and administrative expense. As a result, there is no effect on our net income.

The following table sets forth our deferred compensation liability:

 
Year Ended December 31,
 
2018
 
2017
 
2016
Beginning deferred compensation liability
$
2,388

 
$
2,451

 
$
2,736

Mark-to-market adjustment to deferred compensation (in general and administrative expenses)
(182
)
 
492

 
222

Distributions from deferred compensation plans
(357
)
 
(555
)
 
(507
)
Total deferred compensation liability
$
1,849

 
$
2,388

 
$
2,451



Employee Stock Purchase Plan

The Company has an Employee Stock Purchase Plan ("ESPP") pursuant to which employees may contribute up to 25% of their cash compensation for the purchase of Common Stock. At the end of each quarter, each participant's account balance, which includes accumulated dividends, is applied to acquire shares of Common Stock at a cost that is calculated at 85% of the average closing price on the New York Stock Exchange on the five consecutive days preceding the last day of the quarter. In the years ended December 31, 2018, 2017 and 2016, the Company issued 38,951, 33,278 and 27,773 shares, respectively, of Common Stock under the ESPP. The 15% discount on newly issued shares, which is taxable income to the participants and is recorded by us as additional compensation expense, aggregated $0.3 million, $0.2 million and $0.2 million in the years ended December 31, 2018, 2017 and 2016, respectively. Generally, shares purchased under the ESPP must be held at least one year. The Company satisfies its ESPP obligations by issuing additional shares of Common Stock.
v3.10.0.1
Accumulated Other Comprehensive Income
12 Months Ended
Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Accumulated Other Comprehensive Income/(Loss)
Accumulated Other Comprehensive Income
The following table sets forth the components of accumulated other comprehensive income:
 
 
December 31,
 
2018
 
2017
Cash flow hedges:
 
 
 
Beginning balance
$
7,838

 
$
4,949

Unrealized gains on cash flow hedges
4,161

 
1,732

Amortization of cash flow hedges (1)
(2,086
)
 
1,157

Total accumulated other comprehensive income
$
9,913

 
$
7,838


__________
(1)
Amounts reclassified out of accumulated other comprehensive income into contractual interest expense.
v3.10.0.1
Rental and Other Revenues
12 Months Ended
Dec. 31, 2018
Rental and Other Revenues [Abstract]  
Rental and Other Revenues
Rental and Other Revenues

Our real estate assets are leased to customers under operating leases. The minimum rental amounts under the leases are generally subject to scheduled fixed increases. Generally, the leases also provide that we receive cost recovery income from customers for increases in certain costs above the costs incurred during a contractually specified base year.
The following table sets forth our scheduled future minimum base rents to be received from customers for leases in effect at December 31, 2018 for the properties that we wholly own:
 
2019
$
618,014

2020
581,399

2021
524,381

2022
488,157

2023
428,461

Thereafter
2,068,891

 
$
4,709,303

v3.10.0.1
Real Estate and Other Assets Held For Sale and Discontinued Operations
12 Months Ended
Dec. 31, 2018
Discontinued Operations and Disposal Groups [Abstract]  
Real Estate and Other Assets Held For Sale and Discontinued Operations
Real Estate and Other Assets Held For Sale and Discontinued Operations
 
The following table sets forth the assets held for sale at December 31, 2018 and 2017, which are considered non-core:
 
 
December 31,
 
2018
 
2017
Assets:
 
 
 
Land
$

 
$
870

Buildings and tenant improvements

 
21,318

Land held for development

 
355

Less-accumulated depreciation

 
(9,304
)
Net real estate assets

 
13,239

Accrued straight-line rents receivable

 
591

Deferred leasing costs, net

 
253

Prepaid expenses and other assets

 
35

Real estate and other assets, net, held for sale
$

 
$
14,118

The following tables set forth the results of operations and cash flows for the years ended December 31, 2018, 2017 and 2016 related to discontinued operations:

 
Year Ended December 31,
 
2018
 
2017
 
2016
Rental and other revenues
$

 
$

 
$
8,484

Operating expenses:
 
 
 
 
 
Rental property and other expenses

 

 
3,334

General and administrative

 

 
1,388

Total operating expenses

 

 
4,722

Interest expense

 

 
85

Other income

 

 
420

Income from discontinued operations

 

 
4,097

Net gains on disposition of discontinued operations

 

 
414,496

Total income from discontinued operations
$

 
$

 
$
418,593


 
 
Year Ended December 31,
 
2018
 
2017
 
2016
Cash flows from operating activities
$

 
$

 
$
2,040

Cash flows from investing activities
$

 
$

 
$
646,738

v3.10.0.1
Earnings Per Share and Per Unit
12 Months Ended
Dec. 31, 2018
Earnings Per Share [Abstract]  
Earnings Per Share and Per Unit
Earnings Per Share and Per Unit

The following table sets forth the computation of basic and diluted earnings per share of the Company:

 
Year Ended December 31,
 
2018
 
2017
 
2016
Earnings per Common Share - basic:
 
 
 
 
 
Numerator:
 
 
 
 
 
Income from continuing operations
$
177,630

 
$
191,663

 
$
122,546

Net (income) attributable to noncontrolling interests in the Operating Partnership from continuing operations
(4,588
)
 
(5,059
)
 
(3,331
)
Net (income) attributable to noncontrolling interests in consolidated affiliates from continuing operations
(1,207
)
 
(1,239
)
 
(1,253
)
Dividends on Preferred Stock
(2,492
)
 
(2,492
)
 
(2,501
)
Income from continuing operations available for common stockholders
169,343

 
182,873

 
115,461

Income from discontinued operations

 

 
418,593

Net (income) attributable to noncontrolling interests in the Operating Partnership from discontinued operations

 

 
(12,265
)
Income from discontinued operations available for common stockholders

 

 
406,328

Net income available for common stockholders
$
169,343

 
$
182,873

 
$
521,789

Denominator:
 
 
 
 
 
Denominator for basic earnings per Common Share – weighted average shares
103,439

 
102,682

 
98,439

Earnings per Common Share - basic:
 
 
 
 
 
Income from continuing operations available for common stockholders
$
1.64

 
$
1.78

 
$
1.17

Income from discontinued operations available for common stockholders

 

 
4.13

Net income available for common stockholders
$
1.64

 
$
1.78

 
$
5.30

Earnings per Common Share - diluted:
 
 
 
 
 
Numerator:
 
 
 
 
 
Income from continuing operations
$
177,630

 
$
191,663

 
$
122,546

Net (income) attributable to noncontrolling interests in consolidated affiliates from continuing operations
(1,207
)
 
(1,239
)
 
(1,253
)
Dividends on Preferred Stock
(2,492
)
 
(2,492
)
 
(2,501
)
Income from continuing operations available for common stockholders before net (income) attributable to noncontrolling interests in the Operating Partnership
173,931

 
187,932

 
118,792

Income from discontinued operations available for common stockholders

 

 
418,593

Net income available for common stockholders before net (income) attributable to noncontrolling interests in the Operating Partnership
$
173,931

 
$
187,932

 
$
537,385

Denominator:
 
 
 
 
 
Denominator for basic earnings per Common Share – weighted average shares
103,439

 
102,682

 
98,439

Add:
 
 
 
 
 
Stock options using the treasury method
33

 
79

 
87

Noncontrolling interests Common Units
2,796

 
2,833

 
2,872

Denominator for diluted earnings per Common Share – adjusted weighted average shares and assumed conversions (1)
106,268

 
105,594

 
101,398

Earnings per Common Share - diluted:
 
 
 
 
 
Income from continuing operations available for common stockholders
$
1.64

 
$
1.78

 
$
1.17

Income from discontinued operations available for common stockholders

 

 
4.13

Net income available for common stockholders
$
1.64

 
$
1.78

 
$
5.30

__________
(1)
Includes all unvested restricted stock where dividends on such restricted stock are non-forfeitable.

15.
Earnings Per Share and Per Unit - Continued
 
The following table sets forth the computation of basic and diluted earnings per unit of the Operating Partnership:

 
Year Ended December 31,
 
2018
 
2017
 
2016
Earnings per Common Unit - basic:
 
 
 
 
 
Numerator:
 
 
 
 
 
Income from continuing operations
$
177,630

 
$
191,663

 
$
122,546

Net (income) attributable to noncontrolling interests in consolidated affiliates from continuing operations
(1,207
)
 
(1,239
)
 
(1,253
)
Distributions on Preferred Units
(2,492
)
 
(2,492
)
 
(2,501
)
Income from continuing operations available for common unitholders
173,931

 
187,932

 
118,792

Income from discontinued operations available for common unitholders

 

 
418,593

Net income available for common unitholders
$
173,931

 
$
187,932

 
$
537,385

Denominator:
 
 
 
 
 
Denominator for basic earnings per Common Unit – weighted average units
105,826

 
105,106

 
100,902

Earnings per Common Unit - basic:
 
 
 
 
 
Income from continuing operations available for common unitholders
$
1.64

 
$
1.79

 
$
1.18

Income from discontinued operations available for common unitholders

 

 
4.15

Net income available for common unitholders
$
1.64

 
$
1.79

 
$
5.33

Earnings per Common Unit - diluted:
 
 
 
 
 
Numerator:
 
 
 
 
 
Income from continuing operations
$
177,630

 
$
191,663

 
$
122,546

Net (income) attributable to noncontrolling interests in consolidated affiliates from continuing operations
(1,207
)
 
(1,239
)
 
(1,253
)
Distributions on Preferred Units
(2,492
)
 
(2,492
)
 
(2,501
)
Income from continuing operations available for common unitholders
173,931

 
187,932

 
118,792

Income from discontinued operations available for common unitholders

 

 
418,593

Net income available for common unitholders
$
173,931

 
$
187,932

 
$
537,385

Denominator:
 
 
 
 
 
Denominator for basic earnings per Common Unit – weighted average units
105,826

 
105,106

 
100,902

Add:
 
 
 
 
 
Stock options using the treasury method
33

 
79

 
87

Denominator for diluted earnings per Common Unit – adjusted weighted average units and assumed conversions (1)
105,859

 
105,185

 
100,989

Earnings per Common Unit - diluted:
 
 
 
 
 
Income from continuing operations available for common unitholders
$
1.64

 
$
1.79

 
$
1.18

Income from discontinued operations available for common unitholders

 

 
4.14

Net income available for common unitholders
$
1.64

 
$
1.79

 
$
5.32

__________
(1)
Includes all unvested restricted stock where distributions on such restricted stock are non-forfeitable.
v3.10.0.1
Income Taxes
12 Months Ended
Dec. 31, 2018
Income Tax Disclosure [Abstract]  
Income Taxes
Income Taxes

Our Consolidated Financial Statements include the operations of the Company's taxable REIT subsidiary, which is not entitled to the dividends paid deduction and is subject to federal, state and local income taxes on its taxable income.

The minimum dividend per share of Common Stock required for the Company to maintain its REIT status was $1.26, $1.37 and $0.99 per share in 2018, 2017 and 2016, respectively. Continued qualification as a REIT depends on the Company's ability to satisfy the dividend distribution tests, stock ownership requirements and various other qualification tests. The tax basis of the Company's assets (net of accumulated tax depreciation and amortization) and liabilities was approximately $4.3 billion and $2.3 billion, respectively, at December 31, 2018 and $4.1 billion and $2.3 billion, respectively, at December 31, 2017. The tax basis of the Operating Partnership's assets (net of accumulated tax depreciation and amortization) and liabilities was approximately $4.2 billion and $2.3 billion, respectively, at December 31, 2018 and $4.1 billion and $2.3 billion, respectively, at December 31, 2017.

During the years ended December 31, 2018, 2017 and 2016, the Company qualified as a REIT and incurred no federal income tax expense; accordingly, the only federal income taxes included in the accompanying Consolidated Financial Statements relate to activities of the Company's taxable REIT subsidiary. Due to the passage of federal legislation commonly known as the "Tax Cuts and Jobs Act," which was signed into law on December 22, 2017, the taxable REIT subsidiary was required to decrease the deferred tax asset balance, which resulted in an increase to tax expense of $0.1 million in 2017.

The following table sets forth the Company's income tax expense/(benefit):

 
Year Ended December 31,
 
2018
 
2017
 
2016
Current tax expense/(benefit):
 
 
 
 
 
Federal
$
133

 
$
(177
)
 
$
(38
)
State
112

 
105

 
89

 
245

 
(72
)
 
51

Deferred tax expense/(benefit):
 
 
 
 
 
Federal
(95
)
 
223

 
(160
)
State
(68
)
 
(9
)
 
87

 
(163
)
 
214

 
(73
)
Total income tax expense/(benefit)
$
82

 
$
142

 
$
(22
)


The Company's net deferred tax liability was $0.2 million and $0.3 million as of December 31, 2018 and 2017, respectively. The net deferred tax liability is comprised primarily of tax versus book differences related to property (depreciation, amortization and basis differences).

For the years ended December 31, 2018 and 2017, there were no unrecognized tax benefits. The Company is subject to federal, state and local income tax examinations by taxing authorities for 2015 through 2018. The Company does not expect that the total amount of unrecognized benefits will materially change within the next year.
v3.10.0.1
Segment Information
12 Months Ended
Dec. 31, 2018
Segment Reporting [Abstract]  
Segment Information
Segment Information

Our principal business is the operation, acquisition and development of rental real estate properties. We evaluate our business by geographic location. The operating results by geographic grouping are regularly reviewed by our chief operating decision maker for assessing performance and other purposes. There are no material inter-segment transactions.

Our accounting policies of the segments are the same as those used in our Consolidated Financial Statements. All operations are within the United States.

The following tables summarize the rental and other revenues and net operating income, the primary industry property-level performance metric used by our chief operating decision maker and which is defined as rental and other revenues less rental property and other expenses, for each of our reportable segments.

 
Year Ended December 31,
 
2018
 
2017
 
2016
Rental and Other Revenues:
 
 
 
 
 
Office:
 
 
 
 
 
Atlanta
$
141,337

 
$
140,323

 
$
134,601

Greensboro
22,322

 
21,453

 
20,522

Memphis
40,230

 
45,430

 
48,251

Nashville
121,836

 
111,506

 
95,912

Orlando
53,771

 
51,236

 
46,260

Pittsburgh
61,177

 
59,103

 
58,789

Raleigh
118,352

 
119,254

 
112,958

Richmond
45,729

 
43,959

 
44,315

Tampa
102,404

 
97,524

 
89,903

Total Office Segment
707,158

 
689,788

 
651,511

Other
12,877

 
12,949

 
14,123

Total Rental and Other Revenues
$
720,035

 
$
702,737

 
$
665,634


17.
Segment Information - Continued

 
Year Ended December 31,
 
2018
 
2017
 
2016
Net Operating Income:
 
 
 
 
 
Office:
 
 
 
 
 
Atlanta
$
87,503

 
$
89,575

 
$
84,733

Greensboro
14,275

 
13,612

 
12,781

Memphis
25,659

 
28,128

 
30,038

Nashville
88,554

 
81,204

 
68,678

Orlando
32,841

 
30,526

 
26,525

Pittsburgh
36,233

 
34,784

 
34,175

Raleigh
86,053

 
86,475

 
80,803

Richmond
31,276

 
29,946

 
30,505

Tampa
65,819

 
62,378

 
56,493

Total Office Segment
468,213

 
456,628

 
424,731

Other
9,407

 
9,221

 
9,818

Total Net Operating Income
477,620

 
465,849

 
434,549

Reconciliation to income from continuing operations before disposition of investment properties and activity in unconsolidated affiliates:
 
 
 
 
 
Depreciation and amortization
(229,955
)
 
(227,832
)
 
(220,140
)
Impairments of real estate assets
(423
)
 
(1,445
)
 

General and administrative expenses
(40,006
)
 
(39,648
)
 
(38,153
)
Interest expense
(71,422
)
 
(69,105
)
 
(76,648
)
Other income
1,940

 
2,283

 
2,338

Income from continuing operations before disposition of investment properties and activity in unconsolidated affiliates
$
137,754

 
$
130,102

 
$
101,946




17.
Segment Information - Continued

 
December 31,
 
2018
 
2017
Total Assets:
 
 
 
Office:
 
 
 
Atlanta
$
1,047,850

 
$
1,049,100

Greensboro
118,611

 
134,194

Memphis
213,276

 
218,088

Nashville
937,732

 
806,725

Orlando
306,370

 
306,970

Pittsburgh
329,918

 
334,136

Raleigh
792,464

 
762,331

Richmond
248,669

 
229,468

Tampa
522,263

 
550,375

Total Office Segment
4,517,153

 
4,391,387

Other
157,856

 
232,404

Total Assets
$
4,675,009

 
$
4,623,791

v3.10.0.1
Quarterly Financial Data (Unaudited)
12 Months Ended
Dec. 31, 2018
Quarterly Financial Data [Abstract]  
Quarterly Financial Data (Unaudited)
Quarterly Financial Data (Unaudited)

The following tables set forth quarterly financial information of the Company:

 
Year Ended December 31, 2018
 
First
Quarter
 
Second
Quarter
 
Third
Quarter
 
Fourth
Quarter
 
Total
Rental and other revenues
$
180,438

 
$
178,792

 
$
179,417

 
$
181,388

 
$
720,035

 
 
 
 
 
 
 
 
 
 
Net income
34,246

 
52,998

 
35,009

 
55,377

 
177,630

Net (income) attributable to noncontrolling interests in the Operating Partnership
(888
)
 
(1,381
)
 
(902
)
 
(1,417
)
 
(4,588
)
Net (income) attributable to noncontrolling interests in consolidated affiliates
(286
)
 
(308
)
 
(324
)
 
(289
)
 
(1,207
)
Dividends on Preferred Stock
(623
)
 
(623
)
 
(623
)
 
(623
)
 
(2,492
)
Net income available for common stockholders
$
32,449

 
$
50,686

 
$
33,160

 
$
53,048

 
$
169,343

Earnings per Common Share – basic:
 
 
 
 
 
 
 
 
 
Net income available for common stockholders
$
0.31

 
$
0.49

 
$
0.32

 
$
0.51

 
$
1.64

Earnings per Common Share – diluted:
 
 
 
 
 
 
 
 
 
Net income available for common stockholders
$
0.31

 
$
0.49

 
$
0.32

 
$
0.51

 
$
1.64



 
Year Ended December 31, 2017
 
First
Quarter
 
Second
Quarter
 
Third
Quarter
 
Fourth
Quarter
 
Total
Rental and other revenues
$
169,408

 
$
177,283

 
$
180,185

 
$
175,861

 
$
702,737

 
 
 
 
 
 
 
 
 
 
Net income
33,485

 
39,554

 
59,549

 
59,075

 
191,663

Net (income) attributable to noncontrolling interests in the Operating Partnership
(888
)
 
(1,043
)
 
(1,571
)
 
(1,557
)
 
(5,059
)
Net (income) attributable to noncontrolling interests in consolidated affiliates
(300
)
 
(299
)
 
(315
)
 
(325
)
 
(1,239
)
Dividends on Preferred Stock
(623
)
 
(623
)
 
(623
)
 
(623
)
 
(2,492
)
Net income available for common stockholders
$
31,674

 
$
37,589

 
$
57,040

 
$
56,570

 
$
182,873

Earnings per Common Share – basic:
 
 
 
 
 
 
 
 
 
Net income available for common stockholders
$
0.31

 
$
0.37

 
$
0.55

 
$
0.55

 
$
1.78

Earnings per Common Share – diluted:
 
 
 
 
 
 
 
 
 
Net income available for common stockholders
$
0.31

 
$
0.37

 
$
0.55

 
$
0.55

 
$
1.78



18.
Quarterly Financial Data (Unaudited) - Continued

The following tables set forth quarterly financial information of the Operating Partnership:

 
Year Ended December 31, 2018
 
First
Quarter
 
Second
Quarter
 
Third
Quarter
 
Fourth
Quarter
 
Total
Rental and other revenues
$
180,438

 
$
178,792

 
$
179,417

 
$
181,388

 
$
720,035

 
 
 
 
 
 
 
 
 
 
Net income
34,246

 
52,998

 
35,009

 
55,377

 
177,630

Net (income) attributable to noncontrolling interests in consolidated affiliates
(286
)
 
(308
)
 
(324
)
 
(289
)
 
(1,207
)
Distributions on Preferred Units
(623
)
 
(623
)
 
(623
)
 
(623
)
 
(2,492
)
Net income available for common unitholders
$
33,337

 
$
52,067

 
$
34,062

 
$
54,465

 
$
173,931

Earnings per Common Unit – basic:
 
 
 
 
 
 
 
 
 
Net income available for common unitholders
$
0.32

 
$
0.49

 
$
0.32

 
$
0.51

 
$
1.64

Earnings per Common Unit – diluted:
 
 
 
 
 
 
 
 
 
Net income available for common unitholders
$
0.32

 
$
0.49

 
$
0.32

 
$
0.51

 
$
1.64



 
Year Ended December 31, 2017
 
First
Quarter
 
Second
Quarter
 
Third
Quarter
 
Fourth
Quarter
 
Total
Rental and other revenues
$
169,408

 
$
177,283

 
$
180,185

 
$
175,861

 
$
702,737

 
 
 
 
 
 
 
 
 
 
Net income
33,485

 
39,554

 
59,549

 
59,075

 
191,663

Net (income) attributable to noncontrolling interests in consolidated affiliates
(300
)
 
(299
)
 
(315
)
 
(325
)
 
(1,239
)
Distributions on Preferred Units
(623
)
 
(623
)
 
(623
)
 
(623
)
 
(2,492
)
Net income available for common unitholders
$
32,562

 
$
38,632

 
$
58,611

 
$
58,127

 
$
187,932

Earnings per Common Unit – basic:
 
 
 
 
 
 
 
 
 
Net income available for common unitholders
$
0.31

 
$
0.37

 
$
0.55

 
$
0.55

 
$
1.79

Earnings per Common Unit – diluted:
 
 
 
 
 
 
 
 
 
Net income available for common unitholders
$
0.31

 
$
0.37

 
$
0.55

 
$
0.55

 
$
1.79



v3.10.0.1
Subsequent Events
12 Months Ended
Dec. 31, 2018
Subsequent Events [Abstract]  
Subsequent Events
Subsequent Events

On February 5, 2019 the Company declared a cash dividend of $0.475 per share of Common Stock, which is payable on March 5, 2019 to stockholders of record as of February 19, 2019.
v3.10.0.1
Schedule II
12 Months Ended
Dec. 31, 2018
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Schedule of Valuation and Qualifying Accounts
SCHEDULE II
(in thousands)

The following table sets forth the activity of allowance for doubtful accounts:

 
Balance at December 31, 2017
 
Additions
 
Deductions
 
Balance at December 31, 2018
Allowance for Doubtful Accounts - Straight-Line Rent
$
819

 
$
599

 
$
(777
)
 
$
641

Allowance for Doubtful Accounts - Accounts Receivable
753

 
969

 
(556
)
 
1,166

Allowance for Doubtful Accounts - Notes Receivable
72

 

 
(28
)
 
44

Totals
$
1,644

 
$
1,568

 
$
(1,361
)
 
$
1,851



 
Balance at December 31, 2016
 
Additions
 
Deductions
 
Balance at December 31, 2017
Allowance for Doubtful Accounts - Straight-Line Rent
$
692

 
$
1,503

 
$
(1,376
)
 
$
819

Allowance for Doubtful Accounts - Accounts Receivable
624

 
500

 
(371
)
 
753

Allowance for Doubtful Accounts - Notes Receivable
105

 

 
(33
)
 
72

Totals
$
1,421

 
$
2,003

 
$
(1,780
)
 
$
1,644



 
Balance at December 31, 2015
 
Additions
 
Deductions
 
Balance at December 31, 2016
Allowance for Doubtful Accounts - Straight-Line Rent
$
257

 
$
1,501

 
$
(1,066
)
 
$
692

Allowance for Doubtful Accounts - Accounts Receivable
928

 
1,045

 
(1,349
)
 
624

Allowance for Doubtful Accounts - Notes Receivable
287

 

 
(182
)
 
105

Totals
$
1,472

 
$
2,546

 
$
(2,597
)
 
$
1,421

v3.10.0.1
Schedule III
12 Months Ended
Dec. 31, 2018
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation Disclosure [Abstract]  
Schedule Of Real Estate And Accumulated Depreciation Note To Schedule III
HIGHWOODS PROPERTIES, INC.
HIGHWOODS REALTY LIMITED PARTNERSHIP

NOTE TO SCHEDULE III
(in thousands)

The following table sets forth the activity of real estate assets and accumulated depreciation:
 
 
December 31,
 
2018
 
2017
 
2016
Real estate assets:
 
 
 
 
 
Beginning balance
$
5,173,754

 
$
4,865,103

 
$
4,915,858

Additions:
 
 
 
 
 
Acquisitions, development and improvements
274,863

 
486,755

 
353,236

Cost of real estate sold and retired
(152,066
)
 
(178,104
)
 
(403,991
)
Ending balance (a)
$
5,296,551

 
$
5,173,754

 
$
4,865,103

Accumulated depreciation:
 
 
 
 
 
Beginning balance
$
1,211,728

 
$
1,134,103

 
$
1,138,378

Depreciation expense
191,035

 
184,385

 
173,072

Real estate sold and retired
(106,201
)
 
(106,760
)
 
(177,347
)
Ending balance (b)
$
1,296,562

 
$
1,211,728

 
$
1,134,103


(a)
Reconciliation of total real estate assets to balance sheet caption:
 
2018
 
2017
 
2016
Total per Schedule III
$
5,296,551

 
$
5,173,754

 
$
4,865,103

Development in-process exclusive of land included in Schedule III
165,537

 
88,452

 
279,602

Real estate assets, net, held for sale

 
(22,543
)
 

Total real estate assets
$
5,462,088

 
$
5,239,663

 
$
5,144,705


(b)
Reconciliation of total accumulated depreciation to balance sheet caption:
 
2018
 
2017
 
2016
Total per Schedule III
$
1,296,562

 
$
1,211,728

 
$
1,134,103

Real estate assets, net, held for sale

 
(9,304
)
 

Total accumulated depreciation
$
1,296,562

 
$
1,202,424

 
$
1,134,103

Real Estate and Accumulated Depreciation Disclosure
HIGHWOODS PROPERTIES, INC.
HIGHWOODS REALTY LIMITED PARTNERSHIP
 
SCHEDULE III - REAL ESTATE AND ACCUMULATED DEPRECIATION
(in thousands)
 
December 31, 2018

 
 
 
 
 
 
Initial Costs
 
Costs Capitalized
Subsequent to
Acquisition
 
Gross Value at Close of Period
 
 
 
 
 
 
Description
 
Property
Type
 
2018
Encumbrance
 
Land
 
Bldg &
Improv
 
Land
 
Bldg &
Improv
 
Land
 
Bldg &
Improv
 
Total
Assets (1)
 
Accumulated
Depreciation
 
Date of
Construction
 
Life on
Which
Depreciation
is
Calculated
Atlanta, GA
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1700 Century Circle
 
Office
 
 
 
$

 
$
2,482

 
$
2

 
$
1,466

 
$
2

 
$
3,948

 
$
3,950

 
$
1,505

 
1983
 
 5-40 yrs.
1800 Century Boulevard
 
Office
 
 
 
1,444

 
29,081

 

 
10,260

 
1,444

 
39,341

 
40,785

 
21,007

 
1975
 
 5-40 yrs.
1825 Century Boulevard
 
Office
 
 
 
864

 

 
303

 
14,987

 
1,167

 
14,987

 
16,154

 
5,786

 
2002
 
 5-40 yrs.
1875 Century Boulevard
 
Office
 
 
 

 
8,924

 

 
8,258

 

 
17,182

 
17,182

 
6,865

 
1976
 
 5-40 yrs.
1900 Century Boulevard
 
Office
 
 
 

 
4,744

 

 
710

 

 
5,454

 
5,454

 
4,883

 
1971
 
 5-40 yrs.
2200 Century Parkway
 
Office
 
 
 

 
14,432

 

 
8,639

 

 
23,071

 
23,071

 
10,620

 
1971
 
 5-40 yrs.
2400 Century Parkway
 
Office
 
 
 

 

 
406

 
14,920

 
406

 
14,920

 
15,326

 
6,715

 
1998
 
 5-40 yrs.
2500 Century Parkway
 
Office
 
 
 

 

 
328

 
12,536

 
328

 
12,536

 
12,864

 
3,711

 
2005
 
 5-40 yrs.
2500/2635 Parking Garage
 
Office
 
 
 

 

 

 
6,446

 

 
6,446

 
6,446

 
2,085

 
2005
 
 5-40 yrs.
2600 Century Parkway
 
Office
 
 
 

 
10,679

 

 
4,319

 

 
14,998

 
14,998

 
7,269

 
1973
 
 5-40 yrs.
2635 Century Parkway
 
Office
 
 
 

 
21,643

 

 
14,384

 

 
36,027

 
36,027

 
14,149

 
1980
 
 5-40 yrs.
2800 Century Parkway
 
Office
 
 
 

 
20,449

 

 
12,641

 

 
33,090

 
33,090

 
17,981

 
1983
 
 5-40 yrs.
50 Glenlake
 
Office
 
 
 
2,500

 
20,006

 

 
3,911

 
2,500

 
23,917

 
26,417

 
12,078

 
1997
 
 5-40 yrs.
Century Plaza I
 
Office
 
 
 
1,290

 
8,567

 

 
4,373

 
1,290

 
12,940

 
14,230

 
5,928

 
1981
 
 5-40 yrs.
Century Plaza II
 
Office
 
 
 
1,380

 
7,733

 

 
3,354

 
1,380

 
11,087

 
12,467

 
5,136

 
1984
 
 5-40 yrs.
Charles W. Grant Parkway
 
Office
 
 
 
1,196

 

 
1,416

 
15,178

 
2,612

 
15,178

 
17,790

 
5,770

 
2009
 
 5-40 yrs.
Henry County - Land
 
Industrial
 
 
 
3,010

 

 
(284
)
 

 
2,726

 

 
2,726

 

 
N/A
 
N/A
5405 Windward Parkway
 
Office
 
 
 
3,342

 
32,111

 

 
19,576

 
3,342

 
51,687

 
55,029

 
22,150

 
1998
 
 5-40 yrs.
Riverpoint - Land
 
Industrial
 
 
 
7,250

 

 
1,290

 
2,185

 
8,540

 
2,185

 
10,725

 
452

 
N/A
 
5-40 yrs.
Riverwood 100
 
Office
 
 
 
5,785

 
64,913

 
(29
)
 
20,376

 
5,756

 
85,289

 
91,045

 
18,208

 
1989
 
5-40 yrs.
Tradeport - Land
 
Industrial
 
 
 
5,243

 

 
(4,819
)
 

 
424

 

 
424

 

 
N/A
 
 N/A
Two Alliance Center
 
Office
 
 
 
9,579

 
125,549

 

 
4,620

 
9,579

 
130,169

 
139,748

 
29,951

 
2009
 
5-40 yrs.
One Alliance Center
 
Office
 
 
 
14,775

 
123,071

 

 
17,005

 
14,775

 
140,076

 
154,851

 
23,283

 
2001
 
5-40 yrs.
10 Glenlake North
 
Office
 
 
 
5,349

 
26,334

 

 
11,993

 
5,349

 
38,327

 
43,676

 
7,053

 
2000
 
5-40 yrs.
10 Glenlake South
 
Office
 
 
 
5,103

 
22,811

 

 
3,249

 
5,103

 
26,060

 
31,163

 
5,724

 
1999
 
5-40 yrs.
Riverwood 200
 
Office
 
 
 
4,777

 
89,708

 

 
2,115

 
4,777

 
91,823

 
96,600

 
4,864

 
2017
 
5-40 yrs.
HIGHWOODS PROPERTIES, INC.
HIGHWOODS REALTY LIMITED PARTNERSHIP
 
SCHEDULE III - REAL ESTATE AND ACCUMULATED DEPRECIATION (Continued)
 
 
 
 
 
 
Initial Costs
 
Costs Capitalized
Subsequent to
Acquisition
 
Gross Value at Close of Period
 
 
 
 
 
 
Description
 
Property
Type
 
2018
Encumbrance
 
Land
 
Bldg &
Improv
 
Land
 
Bldg &
Improv
 
Land
 
Bldg &
Improv
 
Total
Assets (1)
 
Accumulated
Depreciation
 
Date of
Construction
 
Life on
Which
Depreciation
is
Calculated
Riverwood 300 - Land
 
Office
 
 
 
400

 

 

 
710

 
400

 
710

 
1,110

 
34

 
N/A
 
5-40 yrs.
Monarch Tower
 
Office
 
 
 
22,717

 
143,068

 

 
7,573

 
22,717

 
150,641

 
173,358

 
15,432

 
1997
 
5-40 yrs.
Monarch Plaza
 
Office
 
 
 
27,678

 
88,962

 

 
8,302

 
27,678

 
97,264

 
124,942

 
10,163

 
1983
 
5-40 yrs.
Memphis, TN
 
 
 
 
 























 
 
 
 
Triad Centre I
 
Office
 
 
 
2,340

 
11,385

 
(849
)
 
4,733

 
1,491

 
16,118

 
17,609

 
7,681

 
1985
 
 5-40 yrs.
Triad Centre II
 
Office
 
 
 
1,980

 
8,677

 
(404
)
 
5,441

 
1,576

 
14,118

 
15,694

 
6,630

 
1987
 
 5-40 yrs.
Atrium I & II
 
Office
 
 
 
1,570

 
6,253

 

 
3,638

 
1,570

 
9,891

 
11,461

 
5,251

 
1984
 
 5-40 yrs.
Centrum
 
Office
 
 
 
1,013

 
5,580

 

 
3,281

 
1,013

 
8,861

 
9,874

 
4,618

 
1979
 
 5-40 yrs.
Comcast
 
Office
 
 
 
946

 

 

 
6,021

 
946

 
6,021

 
6,967

 
1,581

 
2008
 
 5-40 yrs.
International Place II
 
Office
 
 
 
4,884

 
27,782

 

 
6,815

 
4,884

 
34,597

 
39,481

 
18,218

 
1988
 
 5-40 yrs.
PennMarc Centre
 
Office
 
 
 
3,607

 
10,240

 

 
4,667

 
3,607

 
14,907

 
18,514

 
4,894

 
2008
 
 5-40 yrs.
Colonnade
 
Office
 
 
 
1,300

 
6,481

 
267

 
2,277

 
1,567

 
8,758

 
10,325

 
4,386

 
1998
 
 5-40 yrs.
Crescent Center
 
Office
 
 
 
7,875

 
32,756

 
(547
)
 
11,533

 
7,328

 
44,289

 
51,617

 
11,780

 
1986
 
 5-40 yrs.
Southwind - Land
 
Office
 
 
 
3,662

 

 
(2,475
)
 

 
1,187

 

 
1,187

 

 
N/A
 
 N/A
Triad Centre III
 
Office
 
 
 
1,253

 

 

 
36,844

 
1,253

 
36,844

 
38,097

 
10,500

 
2009
 
 5-40 yrs.
Capital Grille
 
Office
 
 
 
311

 
3,258

 

 
(23
)
 
311

 
3,235

 
3,546

 
1,289

 
2014
 
 5-40 yrs.
Seasons 52
 
Office
 
 
 
320

 
3,741

 

 
(39
)
 
320

 
3,702

 
4,022

 
1,419

 
2014
 
 5-40 yrs.
International Place IV
 
Office
 
 
 
4,940

 
49,141

 

 
(193
)
 
4,940

 
48,948

 
53,888

 
4,787

 
2015
 
 5-40 yrs.
Nashville, TN
 
 
 
 
 























 
 
 
 
3322 West End
 
Office
 
 
 
3,025

 
27,490

 

 
9,413

 
3,025

 
36,903

 
39,928

 
15,815

 
1986
 
 5-40 yrs.
3401 West End
 
Office
 
 
 
5,862

 
22,917

 

 
5,675

 
5,862

 
28,592

 
34,454

 
14,717

 
1982
 
 5-40 yrs.
5310 Maryland Way
 
Office
 
 
 
1,863

 
7,201

 

 
3,641

 
1,863

 
10,842

 
12,705

 
5,544

 
1994
 
 5-40 yrs.
Cool Springs I & II Deck
 
Office
 
 
 

 

 

 
3,990

 

 
3,990

 
3,990

 
1,112

 
2007
 
 5-40 yrs.
Cool Springs III & IV Deck
 
Office
 
 
 

 

 

 
4,463

 

 
4,463

 
4,463

 
1,309

 
2007
 
 5-40 yrs.
Cool Springs I
 
Office
 
 
 
1,583

 

 
15

 
13,657

 
1,598

 
13,657

 
15,255

 
6,634

 
1999
 
 5-40 yrs.
Cool Springs II
 
Office
 
 
 
1,824

 

 
346

 
18,740

 
2,170

 
18,740

 
20,910

 
8,312

 
1999
 
 5-40 yrs.
Cool Springs III
 
Office
 
 
 
1,631

 

 
804

 
15,337

 
2,435

 
15,337

 
17,772

 
5,051

 
2006
 
 5-40 yrs.
Cool Springs IV
 
Office
 
 
 
1,715

 

 

 
19,152

 
1,715

 
19,152

 
20,867

 
5,100

 
2008
 
 5-40 yrs.
Cool Springs V (Healthways)
 
Office
 
 
 
3,688

 

 
295

 
53,000

 
3,983

 
53,000

 
56,983

 
19,412

 
2007
 
 5-40 yrs.
Harpeth On The Green II
 
Office
 
 
 
1,419

 
5,677

 

 
2,287

 
1,419

 
7,964

 
9,383

 
4,012

 
1984
 
 5-40 yrs.
Harpeth On The Green III
 
Office
 
 
 
1,660

 
6,649

 

 
2,533

 
1,660

 
9,182

 
10,842

 
4,865

 
1987
 
 5-40 yrs.
HIGHWOODS PROPERTIES, INC.
HIGHWOODS REALTY LIMITED PARTNERSHIP
 
SCHEDULE III - REAL ESTATE AND ACCUMULATED DEPRECIATION (Continued)
 
 
 
 
 
 
Initial Costs
 
Costs Capitalized
Subsequent to
Acquisition
 
Gross Value at Close of Period
 
 
 
 
 
 
Description
 
Property
Type
 
2018
Encumbrance
 
Land
 
Bldg &
Improv
 
Land
 
Bldg &
Improv
 
Land
 
Bldg &
Improv
 
Total
Assets (1)
 
Accumulated
Depreciation
 
Date of
Construction
 
Life on
Which
Depreciation
is
Calculated
Harpeth On The Green IV
 
Office
 
 
 
1,713

 
6,842

 

 
2,290

 
1,713

 
9,132

 
10,845

 
4,752

 
1989
 
 5-40 yrs.
Harpeth On The Green V
 
Office
 
 
 
662

 

 
197

 
5,602

 
859

 
5,602

 
6,461

 
3,170

 
1998
 
 5-40 yrs.
Hickory Trace
 
Office
 
 
 
1,164

 

 
164

 
5,085

 
1,328

 
5,085

 
6,413

 
1,981

 
2001
 
5-40 yrs.
Highwoods Plaza I
 
Office
 
 
 
1,552

 

 
307

 
8,854

 
1,859

 
8,854

 
10,713

 
4,936

 
1996
 
 5-40 yrs.
Highwoods Plaza II
 
Office
 
 
 
1,448

 

 
307

 
9,033

 
1,755

 
9,033

 
10,788

 
4,151

 
1997
 
 5-40 yrs.
Seven Springs I
 
Office
 
 
 
2,076

 

 
592

 
13,268

 
2,668

 
13,268

 
15,936

 
5,413

 
2002
 
 5-40 yrs.
SouthPointe
 
Office
 
 
 
1,655

 

 
310

 
7,657

 
1,965

 
7,657

 
9,622

 
3,523

 
1998
 
 5-40 yrs.
Ramparts
 
Office
 
 
 
2,394

 
12,806

 

 
7,425

 
2,394

 
20,231

 
22,625

 
7,209

 
1986
 
 5-40 yrs.
Westwood South
 
Office
 
 
 
2,106

 

 
382

 
11,447

 
2,488

 
11,447

 
13,935

 
4,916

 
1999
 
 5-40 yrs.
100 Winners Circle
 
Office
 
 
 
1,497

 
7,258

 

 
2,332

 
1,497

 
9,590

 
11,087

 
4,972

 
1987
 
 5-40 yrs.
The Pinnacle at Symphony Place
 
Office
 
97,179

 

 
141,469

 

 
6,093

 

 
147,562

 
147,562

 
28,156

 
2010
 
 5-40 yrs.
Seven Springs East (LifePoint)
 
Office
 
 
 
2,525

 
37,587

 

 
143

 
2,525

 
37,730

 
40,255

 
6,111

 
2013
 
 5-40 yrs.
The Shops at Seven Springs
 
Office
 
 
 
803

 
8,223

 

 
526

 
803

 
8,749

 
9,552

 
1,869

 
2013
 
 5-40 yrs.
Seven Springs West
 
Office
 
 
 
2,439

 
51,306

 

 
2,016

 
2,439

 
53,322

 
55,761

 
4,292

 
2016
 
 5-40 yrs.
Seven Springs II
 
Office
 
 
 
2,356

 
30,048

 

 
800

 
2,356

 
30,848

 
33,204

 
1,708

 
2017
 
 5-40 yrs.
Bridgestone Tower
 
Office
 
 
 
15,639

 
169,392

 

 
155

 
15,639

 
169,547

 
185,186

 
6,682

 
2017
 
 5-40 yrs.
5501 Virginia Way
 
Office
 
 
 

 

 
4,534

 
18,714

 
4,534

 
18,714

 
23,248

 
14

 
2018
 
 5-40 yrs.
1100 Broadway - Land
 
Office
 
 
 

 

 
26,137

 

 
26,137

 

 
26,137

 

 
N/A
 
 N/A
Church St/Wine Glass - Land
 
Office
 
 
 

 

 
30,713

 

 
30,713

 

 
30,713

 

 
N/A
 
 N/A
Orlando, FL
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Berkshire at MetroCenter
 
Office
 
 
 
1,265

 

 
672

 
10,991

 
1,937

 
10,991

 
12,928

 
3,174

 
2007
 
 5-40 yrs.
Capital Plaza Three - Land
 
Office
 
 
 
2,994

 

 
18

 

 
3,012

 

 
3,012

 

 
N/A
 
 N/A
Eola Park - Land
 
Office
 
 
 
2,027

 

 

 

 
2,027

 

 
2,027

 

 
N/A
 
 N/A
Oxford - Land
 
Office
 
 
 
1,100

 

 
51

 
1,107

 
1,151

 
1,107

 
2,258

 
14

 
N/A
 
 5-40 yrs.
Stratford - Land
 
Office
 
 
 
2,034

 

 
(148
)
 

 
1,886

 

 
1,886

 

 
N/A
 
 N/A
Windsor at MetroCenter
 
Office
 
 
 

 

 
2,060

 
9,380

 
2,060

 
9,380

 
11,440

 
3,220

 
2002
 
 5-40 yrs.
The 1800 Eller Drive Building
 
Office
 
 
 

 
9,851

 

 
3,334

 

 
13,185

 
13,185

 
8,313

 
1983
 
 5-40 yrs.
Seaside Plaza
 
Office
 
 
 
3,893

 
29,541

 

 
6,885

 
3,893

 
36,426

 
40,319

 
6,912

 
1982
 
 5-40 yrs.
Capital Plaza Two
 
Office
 
 
 
4,346

 
43,394

 

 
5,954

 
4,346

 
49,348

 
53,694

 
8,601

 
1999
 
 5-40 yrs.
Capital Plaza One
 
Office
 
 
 
3,482

 
27,321

 

 
5,917

 
3,482

 
33,238

 
36,720

 
5,183

 
1975
 
 5-40 yrs.
Landmark Center Two
 
Office
 
 
 
4,743

 
22,031

 

 
8,090

 
4,743

 
30,121

 
34,864

 
6,234

 
1985
 
 5-40 yrs.
HIGHWOODS PROPERTIES, INC.
HIGHWOODS REALTY LIMITED PARTNERSHIP
 
SCHEDULE III - REAL ESTATE AND ACCUMULATED DEPRECIATION (Continued)
 
 
 
 
 
 
Initial Costs
 
Costs Capitalized
Subsequent to
Acquisition
 
Gross Value at Close of Period
 
 
 
 
 
 
Description
 
Property
Type
 
2018
Encumbrance
 
Land
 
Bldg &
Improv
 
Land
 
Bldg &
Improv
 
Land
 
Bldg &
Improv
 
Total
Assets (1)
 
Accumulated
Depreciation
 
Date of
Construction
 
Life on
Which
Depreciation
is
Calculated
Landmark Center One
 
Office
 
 
 
6,207

 
22,655

 

 
8,599

 
6,207

 
31,254

 
37,461

 
5,742

 
1983
 
 5-40 yrs.
300 South Orange
 
Office
 
 
 
3,490

 
56,079

 

 
7,178

 
3,490

 
63,257

 
66,747

 
8,749

 
2000
 
 5-40 yrs.
Eola Centre
 
Office
 
 
 
3,758

 
11,160

 

 
5,162

 
3,758

 
16,322

 
20,080

 
1,981

 
1969
 
 5-40 yrs.
Greensboro, NC
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
6348 Burnt Poplar Road
 
Industrial
 
 
 
724

 
2,900

 

 
327

 
724

 
3,227

 
3,951

 
1,881

 
1990
 
 5-40 yrs.
6350 Burnt Poplar Road
 
Industrial
 
 
 
341

 
1,374

 

 
761

 
341

 
2,135

 
2,476

 
1,027

 
1992
 
 5-40 yrs.
420 Gallimore Dairy Road
 
Office
 
 
 
379

 
1,516

 

 
1,067

 
379

 
2,583

 
2,962

 
1,312

 
1990
 
 5-40 yrs.
418 Gallimore Dairy Road
 
Office
 
 
 
462

 
1,849

 

 
523

 
462

 
2,372

 
2,834

 
1,356

 
1986
 
 5-40 yrs.
416 Gallimore Dairy Road
 
Office
 
 
 
322

 
1,293

 

 
561

 
322

 
1,854

 
2,176

 
989

 
1986
 
 5-40 yrs.
7031 Albert Pick Road
 
Office
 
 
 
510

 
2,921

 

 
2,253

 
510

 
5,174

 
5,684

 
2,684

 
1986
 
 5-40 yrs.
7029 Albert Pick Road
 
Office
 
 
 
739

 
3,237

 

 
1,601

 
739

 
4,838

 
5,577

 
2,542

 
1988
 
 5-40 yrs.
7025 Albert Pick Road
 
Office
 
 
 
2,393

 
9,576

 

 
5,897

 
2,393

 
15,473

 
17,866

 
8,109

 
1990
 
 5-40 yrs.
7027 Albert Pick Road
 
Office
 
 
 
850

 

 
699

 
5,293

 
1,549

 
5,293

 
6,842

 
2,363

 
1997
 
 5-40 yrs.
7009 Albert Pick Road
 
Industrial
 
 
 
224

 
1,068

 

 
263

 
224

 
1,331

 
1,555

 
750

 
1990
 
 5-40 yrs.
426 Gallimore Dairy Road
 
Office
 
 
 
465

 

 
380

 
1,056

 
845

 
1,056

 
1,901

 
470

 
1996
 
 5-40 yrs.
422 Gallimore Dairy Road
 
Industrial
 
 
 
145

 
1,081

 

 
378

 
145

 
1,459

 
1,604

 
908

 
1990
 
 5-40 yrs.
406 Gallimore Dairy Road
 
Office
 
 
 
265

 

 
270

 
883

 
535

 
883

 
1,418

 
391

 
1996
 
 5-40 yrs.
7021 Albert Pick Road
 
Industrial
 
 
 
237

 
1,103

 

 
258

 
237

 
1,361

 
1,598

 
795

 
1985
 
 5-40 yrs.
7019 Albert Pick Road
 
Industrial
 
 
 
192

 
946

 

 
365

 
192

 
1,311

 
1,503

 
799

 
1985
 
 5-40 yrs.
7015 Albert Pick Road
 
Industrial
 
 
 
305

 
1,219

 

 
227

 
305

 
1,446

 
1,751

 
847

 
1985
 
 5-40 yrs.
7017 Albert Pick Road
 
Industrial
 
 
 
225

 
928

 

 
409

 
225

 
1,337

 
1,562

 
741

 
1985
 
 5-40 yrs.
7011 Albert Pick Road
 
Industrial
 
 
 
171

 
777

 

 
320

 
171

 
1,097

 
1,268

 
631

 
1990
 
 5-40 yrs.
424 Gallimore Dairy Road
 
Office
 
 
 
271

 

 
239

 
1,038

 
510

 
1,038

 
1,548

 
481

 
1997
 
 5-40 yrs.
410 Gallimore Dairy Road
 
Industrial
 
 
 
356

 
1,613

 

 
805

 
356

 
2,418

 
2,774

 
1,382

 
1985
 
 5-40 yrs.
412 Gallimore Dairy Road
 
Industrial
 
 
 
374

 
1,523

 

 
578

 
374

 
2,101

 
2,475

 
1,224

 
1985
 
 5-40 yrs.
408 Gallimore Dairy Road
 
Industrial
 
 
 
341

 
1,486

 

 
648

 
341

 
2,134

 
2,475

 
1,092

 
1986
 
 5-40 yrs.
414 Gallimore Dairy Road
 
Industrial
 
 
 
659

 
2,676

 

 
933

 
659

 
3,609

 
4,268

 
2,042

 
1988
 
 5-40 yrs.
237 Burgess Road
 
Industrial
 
 
 
860

 
2,919

 

 
926

 
860

 
3,845

 
4,705

 
2,039

 
1986
 
 5-40 yrs.
235 Burgess Road
 
Industrial
 
 
 
1,302

 
4,392

 

 
1,344

 
1,302

 
5,736

 
7,038

 
3,058

 
1987
 
 5-40 yrs.
241 Burgess Road
 
Industrial
 
 
 
450

 
1,517

 

 
843

 
450

 
2,360

 
2,810

 
1,289

 
1988
 
 5-40 yrs.
243 Burgess Road
 
Industrial
 
 
 
452

 
1,514

 

 
489

 
452

 
2,003

 
2,455

 
1,006

 
1988
 
 5-40 yrs.
HIGHWOODS PROPERTIES, INC.
HIGHWOODS REALTY LIMITED PARTNERSHIP
 
SCHEDULE III - REAL ESTATE AND ACCUMULATED DEPRECIATION (Continued)
 
 
 
 
 
 
Initial Costs
 
Costs Capitalized
Subsequent to
Acquisition
 
Gross Value at Close of Period
 
 
 
 
 
 
Description
 
Property
Type
 
2018
Encumbrance
 
Land
 
Bldg &
Improv
 
Land
 
Bldg &
Improv
 
Land
 
Bldg &
Improv
 
Total
Assets (1)
 
Accumulated
Depreciation
 
Date of
Construction
 
Life on
Which
Depreciation
is
Calculated
496 Gallimore Dairy Road
 
Industrial
 
 
 
546

 

 

 
3,041

 
546

 
3,041

 
3,587

 
1,219

 
1998
 
 5-40 yrs.
494 Gallimore Dairy Road
 
Industrial
 
 
 
749

 

 

 
3,124

 
749

 
3,124

 
3,873

 
1,366

 
1999
 
 5-40 yrs.
486 Gallimore Dairy Road
 
Industrial
 
 
 
603

 

 

 
3,385

 
603

 
3,385

 
3,988

 
1,351

 
1999
 
 5-40 yrs.
488 Gallimore Dairy Road
 
Industrial
 
 
 
499

 

 

 
2,374

 
499

 
2,374

 
2,873

 
1,029

 
1999
 
 5-40 yrs.
490 Gallimore Dairy Road
 
Industrial
 
 
 
1,733

 

 

 
4,424

 
1,733

 
4,424

 
6,157

 
2,032

 
1999
 
 5-40 yrs.
Brigham Road - Land
 
Industrial
 
 
 
7,059

 

 
(5,510
)
 

 
1,549

 

 
1,549

 

 
N/A
 
 N/A
651 Brigham Road
 
Industrial
 
 
 
453

 

 
360

 
2,931

 
813

 
2,931

 
3,744

 
1,240

 
2002
 
 5-40 yrs.
657 Brigham Road
 
Industrial
 
 
 
2,733

 

 
881

 
10,820

 
3,614

 
10,820

 
14,434

 
3,390

 
2006
 
 5-40 yrs.
653 Brigham Road
 
Industrial
 
 
 
814

 

 

 
3,603

 
814

 
3,603

 
4,417

 
993

 
2007
 
 5-40 yrs.
1501 Highwoods Boulevard
 
Office
 
 
 
1,476

 

 

 
8,957

 
1,476

 
8,957

 
10,433

 
3,485

 
2001
 
 5-40 yrs.
Jefferson Pilot - Land
 
Office
 
 
 
11,759

 

 
(4,311
)
 

 
7,448

 

 
7,448

 

 
N/A
 
 N/A
4200 Tudor Lane
 
Industrial
 
 
 
515

 

 
383

 
2,915

 
898

 
2,915

 
3,813

 
1,379

 
1996
 
 5-40 yrs.
4224 Tudor Lane
 
Industrial
 
 
 
435

 

 
288

 
2,445

 
723

 
2,445

 
3,168

 
1,145

 
1996
 
 5-40 yrs.
7023 Albert Pick Road
 
Office
 
 
 
834

 
3,459

 

 
1,146

 
834

 
4,605

 
5,439

 
2,545

 
1989
 
 5-40 yrs.
370 Knollwood Street
 
Office
 
 
 
1,826

 
7,495

 

 
4,134

 
1,826

 
11,629

 
13,455

 
6,422

 
1994
 
 5-40 yrs.
380 Knollwood Street
 
Office
 
 
 
2,989

 
12,029

 

 
5,301

 
2,989

 
17,330

 
20,319

 
9,223

 
1990
 
 5-40 yrs.
1126 North Church Street
 
Office
 
 
 
2,734

 
9,129

 

 
1,499

 
2,734

 
10,628

 
13,362

 
1,791

 
2003
 
 5-40 yrs.
1130 North Church Street
 
Office
 
 
 
2,376

 
5,451

 

 
(629
)
 
2,376

 
4,822

 
7,198

 
790

 
2007
 
 5-40 yrs.
1132 North Church Street
 
Office
 
 
 
925

 
4,551

 

 
98

 
925

 
4,649

 
5,574

 
1,158

 
2008
 
 5-40 yrs.
628 Green Valley Road
 
Office
 
 
 
2,906

 
12,141

 

 
1,527

 
2,906

 
13,668

 
16,574

 
2,270

 
1998
 
 5-40 yrs.
701 Green Valley Road
 
Office
 
 
 
3,787

 
7,719

 

 
1,183

 
3,787

 
8,902

 
12,689

 
1,751

 
1996
 
 5-40 yrs.
661 Brigham Road
 
Industrial
 
 
 
890

 
5,512

 

 
548

 
890

 
6,060

 
6,950

 
444

 
2016
 
 5-40 yrs.
655 Brigham Road
 
Industrial
 
 
 
899

 
6,538

 

 

 
899

 
6,538

 
7,437

 
303

 
2017
 
 5-40 yrs.
Pittsburgh, PA
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
One PPG Place
 
Office
 
 
 
9,819

 
107,643

 

 
45,077

 
9,819

 
152,720

 
162,539

 
38,031

 
1983-1985
 
 5-40 yrs.
Two PPG Place
 
Office
 
 
 
2,302

 
10,978

 

 
9,732

 
2,302

 
20,710

 
23,012

 
3,967

 
1983-1985
 
 5-40 yrs.
Three PPG Place
 
Office
 
 
 
501

 
2,923

 

 
4,166

 
501

 
7,089

 
7,590

 
1,905

 
1983-1985
 
 5-40 yrs.
Four PPG Place
 
Office
 
 
 
620

 
3,239

 

 
2,886

 
620

 
6,125

 
6,745

 
1,515

 
1983-1985
 
 5-40 yrs.
Five PPG Place
 
Office
 
 
 
803

 
4,924

 

 
1,950

 
803

 
6,874

 
7,677

 
2,080

 
1983-1985
 
 5-40 yrs.
Six PPG Place
 
Office
 
 
 
3,353

 
25,602

 

 
13,525

 
3,353

 
39,127

 
42,480

 
7,566

 
1983-1985
 
 5-40 yrs.
EQT Plaza
 
Office
 
 
 
16,457

 
83,812

 

 
12,943

 
16,457

 
96,755

 
113,212

 
20,859

 
1987
 
 5-40 yrs.
HIGHWOODS PROPERTIES, INC.
HIGHWOODS REALTY LIMITED PARTNERSHIP
 
SCHEDULE III - REAL ESTATE AND ACCUMULATED DEPRECIATION (Continued)
 
 
 
 
 
 
Initial Costs
 
Costs Capitalized
Subsequent to
Acquisition
 
Gross Value at Close of Period
 
 
 
 
 
 
Description
 
Property
Type
 
2018
Encumbrance
 
Land
 
Bldg &
Improv
 
Land
 
Bldg &
Improv
 
Land
 
Bldg &
Improv
 
Total
Assets (1)
 
Accumulated
Depreciation
 
Date of
Construction
 
Life on
Which
Depreciation
is
Calculated
Raleigh, NC
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
3600 Glenwood Avenue
 
Office
 
 
 

 
10,994

 

 
4,493

 

 
15,487

 
15,487

 
8,798

 
1986
 
 5-40 yrs.
3737 Glenwood Avenue
 
Office
 
 
 

 

 
318

 
16,391

 
318

 
16,391

 
16,709

 
7,641

 
1999
 
 5-40 yrs.
4800 North Park
 
Office
 
 
 
2,678

 
17,630

 

 
4,977

 
2,678

 
22,607

 
25,285

 
14,279

 
1985
 
 5-40 yrs.
5000 North Park
 
Office
 
 
 
1,010

 
4,612

 
(49
)
 
3,214

 
961

 
7,826

 
8,787

 
3,952

 
1980
 
 5-40 yrs.
801 Raleigh Corporate Center
 
Office
 
 
 
828

 

 
272

 
10,657

 
1,100

 
10,657

 
11,757

 
4,154

 
2002
 
 5-40 yrs.
2500 Blue Ridge Road
 
Office
 
 
 
722

 
4,606

 

 
1,412

 
722

 
6,018

 
6,740

 
3,423

 
1982
 
 5-40 yrs.
2418 Blue Ridge Road
 
Office
 
 
 
462

 
1,410

 

 
764

 
462

 
2,174

 
2,636

 
1,404

 
1988
 
 5-40 yrs.
Cape Fear
 
Office
 
 
 
131

 
1,630

 
(2
)
 
(836
)
 
129

 
794

 
923

 
392

 
1979
 
 5-40 yrs.
Catawba
 
Office
 
 
 
125

 
1,635

 
(2
)
 
(1,416
)
 
123

 
219

 
342

 
123

 
1980
 
 5-40 yrs.
2000 CentreGreen
 
Office
 
 
 
1,529

 

 
(391
)
 
11,011

 
1,138

 
11,011

 
12,149

 
5,775

 
2000
 
 5-40 yrs.
4000 CentreGreen
 
Office
 
 
 
1,653

 

 
(389
)
 
10,316

 
1,264

 
10,316

 
11,580

 
4,368

 
2001
 
 5-40 yrs.
5000 CentreGreen
 
Office
 
 
 
1,291

 
34,572

 

 

 
1,291

 
34,572

 
35,863

 
1,534

 
2017
 
 5-40 yrs.
3000 CentreGreen
 
Office
 
 
 
1,779

 

 
(397
)
 
13,966

 
1,382

 
13,966

 
15,348

 
4,072

 
2002
 
 5-40 yrs.
1000 CentreGreen
 
Office
 
 
 
1,280

 

 
55

 
10,851

 
1,335

 
10,851

 
12,186

 
2,782

 
2008
 
 5-40 yrs.
Cottonwood
 
Office
 
 
 
609

 
3,244

 

 
463

 
609

 
3,707

 
4,316

 
2,253

 
1983
 
 5-40 yrs.
Dogwood
 
Office
 
 
 
766

 
2,769

 

 
248

 
766

 
3,017

 
3,783

 
1,781

 
1983
 
 5-40 yrs.
GlenLake - Land
 
Office
 
 
 
13,003

 

 
(8,359
)
 
114

 
4,644

 
114

 
4,758

 
50

 
N/A
 
5-40 yrs.
GlenLake One
 
Office
 
 
 
924

 

 
1,324

 
21,544

 
2,248

 
21,544

 
23,792

 
8,598

 
2002
 
 5-40 yrs.
GlenLake Four
 
Office
 
 
 
1,659

 

 
493

 
21,032

 
2,152

 
21,032

 
23,184

 
7,142

 
2006
 
 5-40 yrs.
GlenLake Six
 
Office
 
 
 
941

 

 
(365
)
 
20,088

 
576

 
20,088

 
20,664

 
5,380

 
2008
 
 5-40 yrs.
701 Raleigh Corporate Center
 
Office
 
 
 
1,304

 

 
540

 
15,213

 
1,844

 
15,213

 
17,057

 
7,471

 
1996
 
 5-40 yrs.
Highwoods Centre
 
Office
 
 
 
531

 

 
(267
)
 
8,028

 
264

 
8,028

 
8,292

 
3,810

 
1998
 
 5-40 yrs.
Inveresk Parcel 2 - Land
 
Office
 
 
 
657

 

 
38

 
103

 
695

 
103

 
798

 
9

 
N/A
 
5-40 yrs.
4201 Lake Boone Trail
 
Office
 
 
 
1,450

 
6,311

 

 
634

 
1,450

 
6,945

 
8,395

 
1,625

 
1998
 
5-40 yrs.
4620 Creekstone Drive
 
Office
 
 
 
149

 

 
107

 
3,091

 
256

 
3,091

 
3,347

 
1,325

 
2001
 
 5-40 yrs.
4825 Creekstone Drive
 
Office
 
 
 
398

 

 
293

 
11,325

 
691

 
11,325

 
12,016

 
5,321

 
1999
 
 5-40 yrs.
Pamlico
 
Office
 
 
 
289

 

 

 
10,478

 
289

 
10,478

 
10,767

 
8,166

 
1980
 
 5-40 yrs.
Progress Center Renovation
 
Office
 
 
 

 

 

 
3

 

 
3

 
3

 
2

 
2003
 
 5-40 yrs.
751 Corporate Center
 
Office
 
 
 
1,211

 

 
1,454

 
15,520

 
2,665

 
15,520

 
18,185

 
257

 
2018
 
 5-40 yrs.
PNC Plaza
 
Office
 
 
 
1,206

 

 

 
70,992

 
1,206

 
70,992

 
72,198

 
23,054

 
2008
 
5-40 yrs.
HIGHWOODS PROPERTIES, INC.
HIGHWOODS REALTY LIMITED PARTNERSHIP
 
SCHEDULE III - REAL ESTATE AND ACCUMULATED DEPRECIATION (Continued)
 
 
 
 
 
 
Initial Costs
 
Costs Capitalized
Subsequent to
Acquisition
 
Gross Value at Close of Period
 
 
 
 
 
 
Description
 
Property
Type
 
2018
Encumbrance
 
Land
 
Bldg &
Improv
 
Land
 
Bldg &
Improv
 
Land
 
Bldg &
Improv
 
Total
Assets (1)
 
Accumulated
Depreciation
 
Date of
Construction
 
Life on
Which
Depreciation
is
Calculated
4301 Lake Boone Trail
 
Office
 
 
 
878

 
3,730

 

 
2,269

 
878

 
5,999

 
6,877

 
3,535

 
1990
 
5-40 yrs.
4207 Lake Boone Trail
 
Office
 
 
 
362

 
1,818

 

 
1,421

 
362

 
3,239

 
3,601

 
1,791

 
1993
 
5-40 yrs.
2301 Rexwoods Drive
 
Office
 
 
 
919

 
2,816

 

 
1,759

 
919

 
4,575

 
5,494

 
2,413

 
1992
 
5-40 yrs.
4325 Lake Boone Trail
 
Office
 
 
 
586

 

 

 
4,465

 
586

 
4,465

 
5,051

 
2,159

 
1995
 
5-40 yrs.
2300 Rexwoods Drive
 
Office
 
 
 
1,301

 

 
184

 
6,515

 
1,485

 
6,515

 
8,000

 
3,161

 
1998
 
5-40 yrs.
4709 Creekstone Drive
 
Office
 
 
 
469

 
4,038

 
23

 
5,277

 
492

 
9,315

 
9,807

 
2,423

 
1987
 
5-40 yrs.
4700 Six Forks Road
 
Office
 
 
 
666

 
2,665

 

 
1,427

 
666

 
4,092

 
4,758

 
2,328

 
1982
 
5-40 yrs.
4700 Homewood Court
 
Office
 
 
 
1,086

 
4,533

 

 
2,106

 
1,086

 
6,639

 
7,725

 
3,488

 
1983
 
5-40 yrs.
4800 Six Forks Road
 
Office
 
 
 
862

 
4,411

 

 
2,391

 
862

 
6,802

 
7,664

 
3,803

 
1987
 
5-40 yrs.
Smoketree Tower
 
Office
 
 
 
2,353

 
11,743

 

 
6,967

 
2,353

 
18,710

 
21,063

 
9,794

 
1984
 
5-40 yrs.
4601 Creekstone Drive
 
Office
 
 
 
255

 

 
217

 
6,288

 
472

 
6,288

 
6,760

 
3,176

 
1997
 
5-40 yrs.
Weston - Land
 
Office
 
 
 
22,771

 

 
(19,894
)
 

 
2,877

 

 
2,877

 

 
N/A
 
N/A
4625 Creekstone Drive
 
Office
 
 
 
458

 

 
268

 
6,410

 
726

 
6,410

 
7,136

 
3,440

 
1995
 
5-40 yrs.
11000 Weston Parkway
 
Office
 
 
 
2,651

 
18,850

 

 
4,934

 
2,651

 
23,784

 
26,435

 
3,106

 
1998
 
5-40 yrs.
GlenLake Five
 
Office
 
 
 
2,263

 
30,264

 

 
3,530

 
2,263

 
33,794

 
36,057

 
5,482

 
2014
 
5-40 yrs.
11800 Weston Parkway
 
Office
 
 
 
826

 
13,188

 

 
21

 
826

 
13,209

 
14,035

 
1,831

 
2014
 
5-40 yrs.
CentreGreen Café
 
Office
 
 
 
41

 
3,509

 

 

 
41

 
3,509

 
3,550

 
360

 
2014
 
5-40 yrs.
CentreGreen Fitness Center
 
Office
 
 
 
27

 
2,322

 

 

 
27

 
2,322

 
2,349

 
238

 
2014
 
5-40 yrs.
One City Plaza
 
Office
 
 
 
11,288

 
68,375

 

 
23,766

 
11,288

 
92,141

 
103,429

 
12,567

 
1986
 
5-40 yrs.
Edison - Land
 
Office
 
 
 
5,984

 

 
2,494

 

 
8,478

 

 
8,478

 

 
N/A
 
N/A
Charter Square
 
Office
 
 
 
7,267

 
65,881

 

 
4,809

 
7,267

 
70,690

 
77,957

 
5,067

 
2015
 
5-40 yrs.
MetLife Global Technology Campus
 
Office
 
 
 
17,044

 
88,137

 

 
345

 
17,044

 
88,482

 
105,526

 
10,558

 
2015
 
5-40 yrs.
Other Property
 
Other
 
 
 
39,376

 
20,868

 
(32,414
)
 
(106
)
 
6,962

 
20,762

 
27,724

 
11,145

 
N/A
 
5-40 yrs.
Richmond, VA
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
4900 Cox Road
 
Office
 
 
 
1,324

 
5,311

 
15

 
3,110

 
1,339

 
8,421

 
9,760

 
4,717

 
1991
 
 5-40 yrs.
Colonnade Building
 
Office
 
 
 
1,364

 
6,105

 

 
2,461

 
1,364

 
8,566

 
9,930

 
3,332

 
2003
 
 5-40 yrs.
Dominion Place - Pitts Parcel - Land
 
Office
 
 
 
1,101

 

 
(343
)
 

 
758

 

 
758

 

 
N/A
 
 N/A
Markel 4521
 
Office
 
 
 
1,581

 
13,299

 
168

 
(879
)
 
1,749

 
12,420

 
14,169

 
5,501

 
1999
 
 5-40 yrs.
Hamilton Beach
 
Office
 
 
 
1,086

 
4,345

 
10

 
2,722

 
1,096

 
7,067

 
8,163

 
3,269

 
1986
 
 5-40 yrs.
Highwoods Commons
 
Office
 
 
 
521

 

 
458

 
4,276

 
979

 
4,276

 
5,255

 
1,875

 
1999
 
 5-40 yrs.
Highwoods One
 
Office
 
 
 
1,688

 

 
22

 
14,330

 
1,710

 
14,330

 
16,040

 
6,771

 
1996
 
 5-40 yrs.
HIGHWOODS PROPERTIES, INC.
HIGHWOODS REALTY LIMITED PARTNERSHIP
 
SCHEDULE III - REAL ESTATE AND ACCUMULATED DEPRECIATION (Continued)
 
 
 
 
 
 
Initial Costs
 
Costs Capitalized
Subsequent to
Acquisition
 
Gross Value at Close of Period
 
 
 
 
 
 
Description
 
Property
Type
 
2018
Encumbrance
 
Land
 
Bldg &
Improv
 
Land
 
Bldg &
Improv
 
Land
 
Bldg &
Improv
 
Total
Assets (1)
 
Accumulated
Depreciation
 
Date of
Construction
 
Life on
Which
Depreciation
is
Calculated
Highwoods Two
 
Office
 
 
 
786

 

 
226

 
9,632

 
1,012

 
9,632

 
10,644

 
3,114

 
1997
 
 5-40 yrs.
Highwoods Five
 
Office
 
 
 
783

 

 
11

 
7,478

 
794

 
7,478

 
8,272

 
3,115

 
1998
 
 5-40 yrs.
Highwoods Plaza
 
Office
 
 
 
909

 

 
187

 
5,437

 
1,096

 
5,437

 
6,533

 
2,447

 
2000
 
 5-40 yrs.
Innslake Center
 
Office
 
 
 
845

 

 
195

 
7,892

 
1,040

 
7,892

 
8,932

 
2,874

 
2001
 
 5-40 yrs.
Highwoods Centre
 
Office
 
 
 
1,205

 
4,825

 

 
1,215

 
1,205

 
6,040

 
7,245

 
3,230

 
1990
 
 5-40 yrs.
Markel 4501
 
Office
 
 
 
1,300

 
13,259

 
213

 
(3,720
)
 
1,513

 
9,539

 
11,052

 
3,382

 
1998
 
 5-40 yrs.
4600 Cox Road
 
Office
 
 
 
1,700

 
17,081

 
169

 
(3,599
)
 
1,869

 
13,482

 
15,351

 
4,757

 
1989
 
 5-40 yrs.
North Park
 
Office
 
 
 
2,163

 
8,659

 
6

 
2,940

 
2,169

 
11,599

 
13,768

 
6,170

 
1989
 
 5-40 yrs.
North Shore Commons I
 
Office
 
 
 
951

 

 
17

 
12,645

 
968

 
12,645

 
13,613

 
5,536

 
2002
 
 5-40 yrs.
North Shore Commons II
 
Office
 
 
 
2,067

 

 
(89
)
 
11,074

 
1,978

 
11,074

 
13,052

 
3,345

 
2007
 
 5-40 yrs.
North Shore Commons C - Land
 
Office
 
 
 
1,497

 

 
15

 

 
1,512

 

 
1,512

 

 
N/A
 
 N/A
North Shore Commons D - Land
 
Office
 
 
 
1,261

 

 

 

 
1,261

 

 
1,261

 

 
N/A
 
N/A
Nuckols Corner - Land
 
Office
 
 
 
1,259

 

 
203

 

 
1,462

 

 
1,462

 

 
N/A
 
N/A
One Shockoe Plaza
 
Office
 
 
 

 

 
356

 
20,560

 
356

 
20,560

 
20,916

 
8,690

 
1996
 
 5-40 yrs.
Pavilion - Land
 
Office
 
 
 
181

 
46

 
20

 
(46
)
 
201

 

 
201

 

 
N/A
 
N/A
Lake Brook Commons
 
Office
 
 
 
1,600

 
8,864

 
21

 
2,211

 
1,621

 
11,075

 
12,696

 
4,446

 
1996
 
 5-40 yrs.
Sadler & Cox - Land
 
Office
 
 
 
1,535

 

 
343

 

 
1,878

 

 
1,878

 

 
N/A
 
 N/A
Highwoods Three
 
Office
 
 
 
1,918

 

 
358

 
11,319

 
2,276

 
11,319

 
13,595

 
3,486

 
2005
 
 5-40 yrs.
Stony Point VI (Virginia Urology)
 
Office
 
 
 
1,841

 

 
84

 
25,638

 
1,925

 
25,638

 
27,563

 
294

 
2018
 
 5-40 yrs.
Stony Point I
 
Office
 
 
 
1,384

 
11,630

 
(267
)
 
4,165

 
1,117

 
15,795

 
16,912

 
7,823

 
1990
 
 5-40 yrs.
Stony Point II
 
Office
 
 
 
1,240

 

 
103

 
12,643

 
1,343

 
12,643

 
13,986

 
5,637

 
1999
 
 5-40 yrs.
Stony Point III
 
Office
 
 
 
995

 

 

 
10,408

 
995

 
10,408

 
11,403

 
4,494

 
2002
 
 5-40 yrs.
Stony Point IV
 
Office
 
 
 
955

 

 

 
11,052

 
955

 
11,052

 
12,007

 
3,616

 
2006
 
 5-40 yrs.
Virginia Mutual
 
Office
 
 
 
1,301

 
6,036

 
15

 
1,492

 
1,316

 
7,528

 
8,844

 
3,512

 
1996
 
 5-40 yrs.
Waterfront Plaza
 
Office
 
 
 
585

 
2,347

 
8

 
1,946

 
593

 
4,293

 
4,886

 
1,776

 
1988
 
 5-40 yrs.
Innsbrook Centre
 
Office
 
 
 
914

 
8,249

 

 
1,016

 
914

 
9,265

 
10,179

 
3,561

 
1987
 
 5-40 yrs.
Tampa, FL
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Meridian Three
 
Office
 
 
 
2,673

 
16,470

 

 
6,198

 
2,673

 
22,668

 
25,341

 
5,928

 
1989
 
5-40 yrs.
Bayshore Place
 
Office
 
 
 
2,276

 
11,817

 

 
3,834

 
2,276

 
15,651

 
17,927

 
6,498

 
1990
 
 5-40 yrs.
5525 Gray Street
 
Office
 
 
 
4,054

 

 
406

 
28,198

 
4,460

 
28,198

 
32,658

 
11,808

 
2005
 
 5-40 yrs.
Highwoods Preserve Building V
 
Office
 
 
 
881

 

 

 
23,684

 
881

 
23,684

 
24,565

 
10,835

 
2001
 
 5-40 yrs.
HIGHWOODS PROPERTIES, INC.
HIGHWOODS REALTY LIMITED PARTNERSHIP
 
SCHEDULE III - REAL ESTATE AND ACCUMULATED DEPRECIATION (Continued)
 
 
 
 
 
 
Initial Costs
 
Costs Capitalized
Subsequent to
Acquisition
 
Gross Value at Close of Period
 
 
 
 
 
 
Description
 
Property
Type
 
2018
Encumbrance
 
Land
 
Bldg &
Improv
 
Land
 
Bldg &
Improv
 
Land
 
Bldg &
Improv
 
Total
Assets (1)
 
Accumulated
Depreciation
 
Date of
Construction
 
Life on
Which
Depreciation
is
Calculated
Highwoods Bay Center I
 
Office
 
 
 
3,565

 

 
(64
)
 
36,529

 
3,501

 
36,529

 
40,030

 
10,116

 
2007
 
 5-40 yrs.
HIW Bay Center II - Land
 
Office
 
 
 
3,482

 

 

 

 
3,482

 

 
3,482

 

 
N/A
 
N/A
Highwoods Preserve Building VII
 
Office
 
 
 
790

 

 

 
12,498

 
790

 
12,498

 
13,288

 
3,678

 
2007
 
 5-40 yrs.
HIW Preserve VII Garage
 
Office
 
 
 

 

 

 
6,797

 

 
6,797

 
6,797

 
2,023

 
2007
 
 5-40 yrs.
Horizon
 
Office
 
 
 

 
6,257

 

 
3,807

 

 
10,064

 
10,064

 
4,633

 
1980
 
 5-40 yrs.
LakePointe One
 
Office
 
 
 
2,106

 
89

 

 
44,999

 
2,106

 
45,088

 
47,194

 
23,281

 
1986
 
 5-40 yrs.
LakePointe Two
 
Office
 
 
 
2,000

 
15,848

 
672

 
15,689

 
2,672

 
31,537

 
34,209

 
14,301

 
1999
 
 5-40 yrs.
Lakeside
 
Office
 
 
 

 
7,369

 

 
7,139

 

 
14,508

 
14,508

 
6,023

 
1978
 
 5-40 yrs.
Lakeside/Parkside Garage
 
Office
 
 
 

 

 

 
5,630

 

 
5,630

 
5,630

 
1,972

 
2004
 
 5-40 yrs.
One Harbour Place
 
Office
 
 
 
2,016

 
25,252

 

 
12,157

 
2,016

 
37,409

 
39,425

 
15,625

 
1985
 
 5-40 yrs.
Parkside
 
Office
 
 
 

 
9,407

 

 
4,049

 

 
13,456

 
13,456

 
7,384

 
1979
 
 5-40 yrs.
Pavilion
 
Office
 
 
 

 
16,394

 

 
4,355

 

 
20,749

 
20,749

 
10,942

 
1982
 
 5-40 yrs.
Pavilion Parking Garage
 
Office
 
 
 

 

 

 
5,734

 

 
5,734

 
5,734

 
2,734

 
1999
 
 5-40 yrs.
Spectrum
 
Office
 
 
 
1,454

 
14,502

 

 
6,806

 
1,454

 
21,308

 
22,762

 
12,289

 
1984
 
 5-40 yrs.
Tower Place
 
Office
 
 
 
3,218

 
19,898

 

 
4,294

 
3,218

 
24,192

 
27,410

 
13,046

 
1988
 
 5-40 yrs.
Westshore Square
 
Office
 
 
 
1,126

 
5,186

 

 
1,143

 
1,126

 
6,329

 
7,455

 
3,239

 
1976
 
 5-40 yrs.
Independence Park - Land
 
Office
 
 
 
4,943

 

 
4,891

 
2,234

 
9,834

 
2,234

 
12,068

 
102

 
N/A
 
5-40 yrs.
Independence One
 
Office
 
 
 
2,531

 
4,526

 

 
5,519

 
2,531

 
10,045

 
12,576

 
3,887

 
1983
 
 5-40 yrs.
Meridian One
 
Office
 
 
 
1,849

 
22,363

 

 
2,076

 
1,849

 
24,439

 
26,288

 
4,533

 
1984
 
 5-40 yrs.
Meridian Two
 
Office
 
 
 
1,302

 
19,588

 

 
3,252

 
1,302

 
22,840

 
24,142

 
4,314

 
1986
 
 5-40 yrs.
Laser Spine Institute
 
Office
 
 
 

 

 
6,310

 
44,655

 
6,310

 
44,655

 
50,965

 
4,401

 
2016
 
 5-40 yrs.
Suntrust Financial Centre
 
Office
 
 
 
1,980

 
102,138

 

 
14,989

 
1,980

 
117,127

 
119,107

 
12,240

 
1992
 
 5-40 yrs.
Suntrust Financial - Land
 
Office
 
 
 
2,225

 

 

 

 
2,225

 

 
2,225

 

 
N/A
 
N/A
 
 
 
 

 
$
603,359

 
$
2,993,752

 
$
16,330

 
$
1,683,110

 
$
619,689

 
$
4,676,862

 
$
5,296,551

 
$
1,296,562

 
 
 
 
__________
(1)
The tax basis of aggregate land and buildings and tenant improvements as of December 31, 2018 is $4.9 billion.
v3.10.0.1
Description of Business and Significant Accounting Policies (Policies)
12 Months Ended
Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Basis of Presentation
Basis of Presentation

Our Consolidated Financial Statements are prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”).

The Company's Consolidated Financial Statements include the Operating Partnership, wholly owned subsidiaries and those entities in which the Company has the controlling interest. The Operating Partnership's Consolidated Financial Statements include wholly owned subsidiaries and those entities in which the Operating Partnership has the controlling interest. We consolidate joint venture investments, such as interests in partnerships and limited liability companies, when we control the major operating and financial policies of the investment through majority ownership, in our capacity as a general partner or managing member or through some other contractual right. At December 31, 2018, three properties owned through a joint venture investment were consolidated.

All intercompany transactions and accounts have been eliminated.

Use of Estimates
Use of Estimates

The preparation of consolidated financial statements in accordance with GAAP requires us to make estimates and assumptions that affect the amounts reported in our Consolidated Financial Statements and accompanying notes. Actual results could differ from those estimates.
Insurance
Beginning in 2018, we are primarily self-insured for health care claims for participating employees. We have stop-loss coverage to limit our exposure to significant claims on a per claim and annual aggregate basis. We determine our liabilities for claims, including incurred but not reported losses, based on all relevant information, including actuarial estimates of claim liabilities. At December 31, 2018, a reserve of $0.5 million was recorded to cover estimated reported and unreported claims.

Real Estate and Related Assets
Real Estate and Related Assets

Real estate and related assets are recorded at cost and stated at cost less accumulated depreciation. Renovations, replacements and other expenditures that improve or extend the life of assets are capitalized and depreciated over their estimated useful lives. Expenditures for ordinary maintenance and repairs are charged to expense as incurred. Depreciation is computed using the straight-line method over the estimated useful life of 40 years for buildings and depreciable land infrastructure costs, 15 years for building improvements and five to seven years for furniture, fixtures and equipment. Tenant improvements are amortized using the straight-line method over initial fixed terms of the respective leases, which generally are from three to 10 years. Depreciation expense for real estate assets was $191.0 million, $184.4 million and $173.1 million for the years ended December 31, 2018, 2017 and 2016, respectively.

Expenditures directly related to the development and construction of real estate assets are included in net real estate assets and are stated at depreciated cost. Development expenditures include pre-construction costs essential to the development of properties, development and construction costs, interest costs on qualifying assets, real estate taxes, development personnel salaries and related costs and other costs incurred during the period of development. Interest and other carrying costs are capitalized until the building is ready for its intended use, but not later than a year from cessation of major construction activity. We consider a construction project as substantially completed and ready for its intended use upon the completion of tenant improvements. We cease capitalization on the portion that is substantially completed and occupied or held available for occupancy, and capitalize only those costs associated with the portion under construction.

Expenditures directly related to the leasing of properties are included in deferred leasing costs and are stated at amortized cost. Such expenditures are part of the investment necessary to execute leases and, therefore, are classified as investment activities in the statement of cash flows. All leasing commissions paid to third parties for new leases or lease renewals are capitalized. Internal leasing costs, which consist primarily of compensation, benefits and other costs, such as legal fees related to leasing activities, that are incurred in connection with successfully obtaining leases of properties are also capitalized. Capitalized leasing costs are amortized on a straight-line basis over the initial fixed terms of the respective leases, which generally are from three to 10 years. Estimated costs related to unsuccessful activities are expensed as incurred.

We record liabilities for the performance of asset retirement activities when the obligation to perform such activities is probable even when uncertainty exists about the timing and/or method of settlement.

Upon the acquisition of real estate assets, we assess the fair value of acquired tangible assets such as land, buildings and tenant improvements, intangible assets and liabilities such as above and below market leases, acquired in-place leases, customer relationships and other identifiable intangible assets and assumed liabilities. We assess fair value based on estimated cash flow projections that utilize discount and/or capitalization rates as well as available market information. The fair value of the tangible assets of an acquired property considers the value of the property as if it were vacant. 

The above and below market rate portions of leases acquired in connection with property acquisitions are recorded in deferred leasing costs and in accounts payable, accrued expenses and other liabilities, respectively, at fair value and amortized into rental revenue over the remaining term of the respective leases as described below. Fair value is calculated as the present value of the difference between (1) the contractual amounts to be paid pursuant to each in-place lease and (2) our estimate of fair market lease rates for each corresponding in-place lease, using a discount rate that reflects the risks associated with the leases acquired and measured over a period equal to the remaining initial term of the lease for above-market leases and the remaining initial term plus the term of any renewal option that the customer would be economically compelled to exercise for below-market leases.

In-place leases acquired are recorded at fair value in deferred leasing costs and are amortized to depreciation and amortization expense over the remaining term of the respective lease. The value of in-place leases is based on our evaluation of the specific characteristics of each customer's lease. Factors considered include estimates of carrying costs during hypothetical expected lease-up periods, current market conditions, the customer's credit quality and costs to execute similar leases. In estimating carrying costs, we include real estate taxes, insurance and other operating expenses and estimates of lost rentals at market rates during the expected lease-up periods, depending on local market conditions. In estimating costs to execute similar leases, we consider tenant improvements, leasing commissions and legal and other related expenses.

1.    Description of Business and Significant Accounting Policies – Continued
 
Real estate and other assets are classified as long-lived assets held for use or as long-lived assets held for sale. Real estate is classified as held for sale when the sale of the asset is probable, has been duly approved by the Company, a legally enforceable contract has been executed and the buyer's due diligence period, if any, has expired.
Impairments of Real Estate Assets and Investments in Unconsolidated Affiliates
Impairments of Real Estate Assets and Investments in Unconsolidated Affiliates

With respect to assets classified as held for use, we perform an impairment analysis if events or changes in circumstances indicate that the carrying value may be impaired, such as a significant decline in occupancy, identification of materially adverse legal or environmental factors, change in our designation of an asset from core to non-core, which may impact the anticipated holding period, or a decline in market value to an amount less than cost. This analysis is generally performed at the property level, except when an asset is part of an interdependent group such as an office park, and consists of determining whether the asset's carrying amount will be recovered from its undiscounted estimated future operating and residual cash flows. These cash flows are estimated based on a number of assumptions that are subject to economic and market uncertainties including, among others, demand for space, competition for customers, changes in market rental rates, costs to operate each property and expected ownership periods. For properties under development, the cash flows are based on expected service potential of the asset or asset group when development is substantially complete.

If the carrying amount of a held for use asset exceeds the sum of its undiscounted future operating and residual cash flows, an impairment loss is recorded for the difference between estimated fair value of the asset and the carrying amount. We generally estimate the fair value of assets held for use by using discounted cash flow analyses. In some instances, appraisal information may be available and is used in addition to a discounted cash flow analysis. As the factors used in generating these cash flows are difficult to predict and are subject to future events that may alter our assumptions, the discounted and/or undiscounted future operating and residual cash flows estimated by us in our impairment analyses or those established by appraisal may not be achieved and we may be required to recognize future impairment losses on properties held for use.
 
We record assets held for sale at the lower of the carrying amount or estimated fair value. Fair value of assets held for sale is equal to the estimated or contracted sales price with a potential buyer, less costs to sell. The impairment loss is the amount by which the carrying amount exceeds the estimated fair value.
 
We also analyze our investments in unconsolidated affiliates for impairment. This analysis consists of determining whether an expected loss in market value of an investment is other than temporary by evaluating the length of time and the extent to which the market value has been less than cost, the financial condition and near-term prospects of the investment, and our intent and ability to retain our investment for a period of time sufficient to allow for any anticipated recovery in market value. As the factors used in this analysis are difficult to predict and are subject to future events that may alter our assumptions, we may be required to recognize future impairment losses on our investments in unconsolidated affiliates.

Sales of Real Estate
Sales of Real Estate
 
Rental and Other Revenues
Rental and Other Revenues
 
Minimum contractual rents from leases are recognized on a straight-line basis over the terms of the respective leases. This means that, with respect to a particular lease, actual amounts billed in accordance with the lease during any given period may be higher or lower than the amount of rental revenue recognized for the period. Straight-line rental revenue is commenced when the customer assumes control of the leased premises. Accrued straight-line rents receivable represents the amount by which straight-line rental revenue exceeds rents currently billed in accordance with lease agreements. Contingent rental revenue, such as percentage rent, is accrued when the contingency is removed. Termination fee income is recognized at the later of when the customer has vacated the space or the lease has expired and a fully executed lease termination agreement has been delivered, the amount of the fee is determinable and collectability of the fee is reasonably assured.

Cost recovery income is determined on a calendar year and a lease-by-lease basis. The most common types of cost recovery income in our leases are common area maintenance (“CAM”) and real estate taxes, for which a customer typically pays its pro-rata share of operating and administrative expenses and real estate taxes in excess of the costs incurred during a contractually specified base year. The computation of cost recovery income is complex and involves numerous judgments, including the interpretation of lease provisions. Leases are not uniform in dealing with such cost recovery income and there are many variations in the computation. Many customers make monthly fixed payments of CAM, real estate taxes and other cost reimbursement items. We accrue income related to these payments each month. We make quarterly accrual adjustments, positive or negative, to cost recovery income to adjust the recorded amounts to our best estimate of the final annual amounts to be billed and collected. After the end of the calendar year, we compute each customer's final cost recovery income and, after considering amounts paid by the customer during the year, issue a bill or credit for the appropriate amount to the customer. The differences between the amounts billed less previously received payments and the accrual adjustment are recorded as increases or decreases to cost recovery income when the final bills are prepared, which occurs during the first half of the subsequent year.
Allowance for Doubtful Accounts
Allowance for Doubtful Accounts
 
Accounts receivable, accrued straight-line rents receivable and mortgages and notes receivable are reduced by an allowance for amounts that may become uncollectible in the future. We regularly evaluate the adequacy of our allowance for doubtful accounts. The evaluation primarily consists of reviewing past due account balances and considering such factors as the credit quality of our customer, historical trends of the customer and changes in customer payment terms. Additionally, with respect to customers in bankruptcy, we estimate the probable recovery through bankruptcy claims and adjust the allowance for amounts deemed uncollectible. If our assumptions regarding the collectability of receivables prove incorrect, we could experience losses in excess of our allowance for doubtful accounts. The allowance and its related receivable are written-off when we have concluded there is a low probability of collection and we have discontinued collection efforts.
Discontinued Operations
Discontinued Operations
 
Properties that are sold or classified as held for sale are classified as discontinued operations provided that the disposal represents a strategic shift that has (or will have) a major effect on our operations and financial results. Interest expense is included in discontinued operations if a related loan securing the sold property is to be paid off or assumed by the buyer in connection with the sale.
Lease Incentives
Lease Incentives
 
Lease incentive costs, which are payments made to or on behalf of a customer as an incentive to sign a lease, are capitalized in deferred leasing costs and amortized on a straight-line basis over the respective lease terms as a reduction of rental revenues.
Investments in Unconsolidated Affiliates
Investments in Unconsolidated Affiliates
 
We account for our joint venture investments using the equity method of accounting when our interests represent a general partnership interest but substantive participating rights or substantive kick out rights have been granted to the limited partners or when our interests do not represent a general partnership interest and we do not control the major operating and financial policies of the investment. These investments are initially recorded at cost as investments in unconsolidated affiliates and are subsequently adjusted for our share of earnings and cash contributions and distributions. To the extent our cost basis at formation of the joint venture is different than the basis reflected at the joint venture level, the basis difference is amortized over the life of the related assets and included in our share of equity in earnings of unconsolidated affiliates.
Cash Equivalents
Cash Equivalents

We consider highly liquid investments with an original maturity of three months or less when purchased to be cash equivalents.

Restricted Cash
Restricted Cash
 
Restricted cash represents cash deposits that are legally restricted or held by third parties on our behalf, such as construction-related escrows, property disposition proceeds set aside and designated or intended to fund future tax-deferred exchanges of qualifying real estate investments and escrows and reserves for debt service, real estate taxes and property insurance established pursuant to certain mortgage financing arrangements.
Redeemable Common Units and Preferred Units
Redeemable Common Units and Preferred Units
 
Limited partners holding Common Units other than the Company (“Redeemable Common Units”) have the right to put any and all of the Common Units to the Operating Partnership and the Company has the right to put any and all of the Preferred Units to the Operating Partnership in exchange for their liquidation preference plus accrued and unpaid distributions in the event of a corresponding redemption by the Company of the underlying Preferred Stock. Consequently, these Redeemable Common Units and Preferred Units are classified outside of permanent partners’ capital in the Operating Partnership's accompanying balance sheets. The recorded value of the Redeemable Common Units is based on fair value at the balance sheet date as measured by the closing price of Common Stock on that date multiplied by the total number of Redeemable Common Units outstanding. The recorded value of the Preferred Units is based on their redemption value.
Income Tax
Income Taxes
 
The Company has elected and expects to continue to qualify as a REIT under Sections 856 through 860 of the Internal Revenue Code of 1986, as amended (the “Code”). A corporate REIT is a legal entity that holds real estate assets and, through the payment of dividends to stockholders, is generally permitted to reduce or avoid the payment of federal and state income taxes at the corporate level. To maintain qualification as a REIT, the Company is required to pay dividends to its stockholders equal to at least 90.0% of its annual REIT taxable income, excluding net capital gains. The partnership agreement requires the Operating Partnership to pay economically equivalent distributions on outstanding Common Units at the same time that the Company pays dividends on its outstanding Common Stock.

Other than income taxes related to its taxable REIT subsidiary, the Operating Partnership does not reflect any federal income taxes in its financial statements, since as a partnership the taxable effects of its operations are attributed to its partners. The Operating Partnership does record state income tax for states that tax partnership income directly.
 
We conduct certain business activities through a taxable REIT subsidiary, as permitted under the Code. The taxable REIT subsidiary is subject to federal, state and local income taxes on its taxable income. We record provisions for income taxes based on its income recognized for financial statement purposes, including the effects of differences between such income and the amount recognized for tax purposes.
Concentration of Credit Risk
Concentration of Credit Risk
 
At December 31, 2018, properties that we wholly own were leased to 1,654 customers. The geographic locations that comprise greater than 10.0% of our rental and other revenues are Raleigh, Atlanta, Tampa and Nashville. Our customers engage in a wide variety of businesses. No single customer generated more than 5% of our consolidated revenues during 2018.
 
We maintain our cash and cash equivalents and our restricted cash at financial or other intermediary institutions. The combined account balances at each institution may exceed FDIC insurance coverage and, as a result, there is a concentration of credit risk related to amounts on deposit in excess of FDIC insurance coverage. Additionally, from time to time in connection with tax-deferred 1031 transactions, our restricted cash balances may be commingled with other funds being held by any such intermediary institution, which would subject our balance to the credit risk of the institution.
Derivative Financial Instruments
Derivative Financial Instruments
 
We borrow funds at a combination of fixed and variable rates. Borrowings under our revolving credit facility and bank term loans bear interest at variable rates. Our long-term debt typically bears interest at fixed rates. Our interest rate risk management objectives are to limit generally the impact of interest rate changes on earnings and cash flows and lower our overall borrowing costs. To achieve these objectives, from time to time, we enter into interest rate hedge contracts such as collars, swaps, caps and treasury lock agreements in order to mitigate our interest rate risk with respect to existing and prospective debt instruments. We generally do not hold or issue these derivative contracts for trading or speculative purposes. The interest rate on all of our variable rate debt is generally adjusted at one or three month intervals, subject to settlements under these interest rate hedge contracts.

Interest rate swaps involve the receipt of variable-rate amounts from a counterparty in exchange for making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount. The effective portion of changes in the fair value of derivatives designated and that qualify as cash flow hedges is recorded in accumulated other comprehensive income/(loss) and is subsequently reclassified into interest expense in the period that the hedged forecasted transaction affects earnings.
 
We account for terminated derivative instruments by recognizing the related accumulated comprehensive income/(loss) balance in current earnings, unless the hedged forecasted transaction continues as originally planned, in which case we continue to amortize the accumulated comprehensive income/(loss) into earnings over the originally designated hedge period.

Earnings Per Share and Per Unit
Earnings Per Share and Per Unit
 
Basic earnings per share of the Company is computed by dividing net income available for common stockholders by the weighted Common Shares outstanding - basic. Diluted earnings per share is computed by dividing net income available to common stockholders (inclusive of noncontrolling interests in the Operating Partnership) by the weighted Common Shares outstanding - basic plus the dilutive effect of options, warrants and convertible securities outstanding, including Common Units, using the treasury stock method. Weighted Common Shares outstanding - basic includes all unvested restricted stock where dividends received on such restricted stock are non-forfeitable.

Basic earnings per unit of the Operating Partnership is computed by dividing net income available for common unitholders by the weighted Common Units outstanding - basic. Diluted earnings per unit is computed by dividing net income available to common unitholders by the weighted Common Units outstanding - basic plus the dilutive effect of options and warrants, using the treasury stock method. Weighted Common Units outstanding - basic includes all of the Company's unvested restricted stock where distributions received on such restricted stock are non-forfeitable.
Recently Issued Accounting Standards
Recently Issued Accounting Standards
 
The Financial Accounting Standards Board ("FASB") issued an accounting standards update ("ASU") that superseded the revenue recognition requirements under previous guidance, which we adopted as of January 1, 2018. Several updates have been issued subsequently that are intended to promote a more consistent interpretation and application of the principles outlined in the ASU. The ASU requires the use of a new five-step model to recognize revenue from contracts with customers. The five-step model requires that we identify the contract with the customer, identify the performance obligations in the contract, determine the transaction price, allocate the transaction price to the performance obligations in the contract and recognize revenue when we satisfy the performance obligations. We are also required to disclose information regarding the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. In analyzing our contracts with customers, we determined that the most material potential impact from the adoption of this ASU would be in how revenue is recognized for sales of real estate with post sale involvement. Prior to the adoption of this ASU, profit for such sales transactions was recognized and then reduced by the maximum exposure to loss related to the nature of the post sale involvement at the time of sale. Upon adoption of this ASU, any post sale involvement must be accounted for as a separate performance obligation in the contract and a portion of the sales price allocated to each performance obligation. When the post sale involvement performance obligation is satisfied, the portion of the sales price allocated to it will be recognized. We had no sales of real estate with continuing involvement during the year ended December 31, 2018 or prior periods; however, we will use such methodology for any future real estate sales with continuing involvement. Our internal controls with respect to accounting for such sales have been updated accordingly. Adoption of this ASU resulted in no other changes with respect to the timing of revenue recognition or internal controls related to contracts such as management, development and construction fees and transient parking income, all of which are not material to our Consolidated Financial Statements. As such, there is no cumulative-effect adjustment from the adoption of this ASU reflected in our Consolidated Financial Statements.
 
The FASB issued an ASU that requires entities to show changes in total cash, cash equivalents, restricted cash and restricted cash equivalents in the statement of cash flows. As a result, restricted cash and restricted cash equivalents will be included with cash and cash equivalents when reconciling the beginning of period and end of period balances rather than presented as transfers between cash and cash equivalents and restricted cash and restricted cash equivalents in the statement of cash flows. We adopted the ASU as of January 1, 2018 with retrospective application to our Consolidated Statements of Cash Flows. Accordingly, our Consolidated Statements of Cash Flows present a reconciliation of the changes in cash and cash equivalents and restricted cash. The effect of the adoption resulted in a $55.9 million decrease in net cash used in investing activities for the year ended December 31, 2017 and a $12.4 million increase in net cash provided by investing activities for the year ended December 31, 2016.
 
The FASB issued an ASU that clarifies and narrows the definition of a business used in determining whether to account for a transaction as an asset acquisition or business combination. The guidance requires evaluation of the fair value of the assets acquired to determine if it is concentrated in a single identifiable asset or a group of similar identifiable assets. If so, the transferred assets would not be a business. The guidance also requires a business to include at least one substantive process and narrows the definition of outputs. We adopted the ASU prospectively as of January 1, 2018. We expect that the majority of our future acquisitions would not meet the definition of a business; therefore, the related acquisition costs would be capitalized as part of the purchase price.
 
The FASB issued an ASU that clarifies when changes to the terms or conditions of a share-based payment award must be accounted for as modifications. The guidance requires modification accounting if the value, vesting conditions or classification of the award changes. We adopted the ASU as of January 1, 2018 with no effect on our Consolidated Financial Statements.


1.    Description of Business and Significant Accounting Policies – Continued
 
The FASB issued an ASU that sets out the principles for the recognition, measurement, presentation and disclosure of leases for both lessees and lessors. The new standard requires lessors to account for leases using an approach that is substantially equivalent to existing guidance for sales-type leases, direct financing leases and operating leases. In addition, the guidance requires lessors to capitalize and amortize only incremental direct leasing costs. The new standard requires lessees to apply a dual approach, classifying leases as either finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase by the lessee. This classification will determine whether lease expense is recognized based on an effective interest method or on a straight-line basis over the term of the lease, respectively. A lessee is also required to record a right of use asset and a lease liability for all leases with a term of greater than a year regardless of their classification. Leases with a term of a year or less will be accounted for in the same manner as operating leases today. The guidance supersedes previously issued guidance under ASC Topic 840 “Leases.”

An entity may elect a package of practical expedients, which allows for the following:
 
An entity need not reassess whether any expired or existing contracts are or contain leases;
 
An entity need not reassess the lease classification for any expired or existing leases; and
 
An entity need not reassess initial direct costs for any existing leases.
 
This package of practical expedients is available as a single election that must be consistently applied to all existing leases at the date of adoption.

Furthermore, the FASB finalized an amendment that allows entities to present comparative periods, in the year of adoption, under ASC 840, which effectively allows for an initial date of adoption of January 1, 2019. The amendment also provides a practical expedient to lessors that removes the requirement to separate lease and non-lease components, provided certain conditions are met.

Our analysis of our leases indicates that the lease component is the predominant component, that the timing and pattern of transfer of our material non-lease components (primarily cost recovery income) are the same as the lease components and the lease component, if it were accounted for separately, would be classified as an operating lease. As such, we believe the adoption of the ASU will not significantly change the accounting or the related internal controls for rental and other revenues from operating leases where we are the lessor, and that such leases will be accounted for in a manner similar to existing standards with the underlying leased asset being reported and recognized as a real estate asset. Upon the adoption of the ASU, we will no longer capitalize and amortize certain leasing related costs and instead will expense these costs as incurred. Such capitalized costs have averaged approximately $2.5 million annually.

Leases where we are the lessee include primarily our operating ground leases. We currently believe that existing ground leases executed before the adoption date will continue to be accounted for as operating leases and the new guidance will not have a material impact on our recognition of ground lease expense or our results of operations. However, we will be required to recognize a right of use asset and a lease liability on our Consolidated Balance Sheets equal to the present value of the minimum lease payments required under each ground lease, which we believe will range from $31 million to $36 million. See Note 7 for information regarding our ground lease commitments.

We will adopt the new ASU effective January 1, 2019 using the modified retrospective approach and will elect the use of all practical expedients provided by the ASU and related amendments as mentioned above.

The FASB issued an ASU that eliminates the requirement to separately measure and report hedge ineffectiveness and generally requires the entire change in the fair value of a hedging instrument to be presented in the same income statement line as the hedged item when the hedged item affects earnings. The ASU is required to be adopted in 2019 using a modified retrospective approach. We do not expect such adoption to have a material effect on our Consolidated Financial Statements.

1.    Description of Business and Significant Accounting Policies – Continued
 
The FASB issued an ASU that requires, among other things, the use of a new current expected credit loss ("CECL") model in determining our allowances for doubtful accounts with respect to accounts receivable, accrued straight-line rents receivable and mortgages and notes receivable. The FASB recently finalized its proposal to exclude operating lease receivables from the scope of this ASU. As such, we do not expect the adoption of this ASU in 2020 to have a material effect on our Consolidated Financial Statements.

The FASB issued an ASU that changes certain disclosure requirements for fair value measurements. The ASU is required to be adopted in 2020 and applied prospectively. We do not expect such adoption to have a material effect on our Notes to Consolidated Financial Statements.
v3.10.0.1
Investments In and Advances To Affiliates (Tables)
12 Months Ended
Dec. 31, 2018
Equity Method Investments and Joint Ventures [Abstract]  
Schedule of Equity Method Investments
The following table sets forth our ownership in unconsolidated affiliates at December 31, 2018:
 
Joint Venture
 
Location
 
Ownership
Interest
Plaza Colonnade, Tenant-in-Common
 
Kansas City
 
50.0%
Kessinger/Hunter & Company, LC
 
Kansas City
 
26.5%
Highwoods DLF Forum, LLC
 
Raleigh
 
25.0%
Highwoods DLF 98/29, LLC
 
Orlando
 
22.8%

v3.10.0.1
Intangible Assets and Below Market Lease Liabilities (Tables)
12 Months Ended
Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]  
Total Intangible Assets and Below Market Lease Liabilities
The following table sets forth total intangible assets and acquisition-related below market lease liabilities, net of accumulated amortization:
 
 
December 31,
 
2018
 
2017
Assets:
 
 
 
Deferred leasing costs (including lease incentives and above market lease and in-place lease acquisition-related intangible assets)
$
344,548

 
$
344,191

Less accumulated amortization
(149,275
)
 
(143,512
)
 
$
195,273

 
$
200,679

 
 
 
 
Liabilities (in accounts payable, accrued expenses and other liabilities):
 
 
 
Acquisition-related below market lease liabilities
$
57,955

 
$
59,947

Less accumulated amortization
(32,307
)
 
(28,214
)
 
$
25,648

 
$
31,733


Amortization of Intangible Assets and Below Market Lease Liabilities
The following table sets forth amortization of intangible assets and below market lease liabilities:
 
 
Year Ended December 31,
 
2018
 
2017
 
2016
Amortization of deferred leasing costs and acquisition-related intangible assets (in depreciation and amortization)
$
36,486

 
$
41,187

 
$
44,968

Amortization of lease incentives (in rental and other revenues)
$
1,908

 
$
1,765

 
$
1,779

Amortization of acquisition-related intangible assets (in rental and other revenues)
$
1,677

 
$
2,921

 
$
3,851

Amortization of acquisition-related intangible assets (in rental property and other expenses)
$
557

 
$
557

 
$
557

Amortization of acquisition-related below market lease liabilities (in rental and other revenues)
$
(6,085
)
 
$
(6,415
)
 
$
(8,183
)

Scheduled Future Amortization of Intangible Assets and Below Market Lease Liabilities
The following table sets forth scheduled future amortization of intangible assets and below market lease liabilities:
 
Years Ending December 31,
 
Amortization
of Deferred Leasing Costs and Acquisition-Related Intangible Assets (in Depreciation and Amortization)
 
Amortization
of Lease Incentives (in Rental and Other Revenues)
 
Amortization
of Acquisition-Related Intangible Assets (in Rental and Other Revenues)
 
Amortization of Acquisition-Related Intangible Assets (in Rental Property and Other Expenses)
 
Amortization
of Acquisition-Related Below Market Lease Liabilities (in Rental and Other Revenues)
2019
 
$
35,862

 
$
1,730

 
$
1,261

 
$
553

 
$
(5,405
)
2020
 
31,285

 
1,445

 
957

 
514

 
(5,135
)
2021
 
26,702

 
1,205

 
631

 

 
(4,331
)
2022
 
22,392

 
982

 
462

 

 
(3,258
)
2023
 
18,972

 
914

 
308

 

 
(2,878
)
Thereafter
 
43,147

 
4,851

 
1,100

 

 
(4,641
)
 
 
$
178,360

 
$
11,127

 
$
4,719

 
$
1,067

 
$
(25,648
)
Weighted average remaining amortization periods as of December 31, 2018 (in years)
 
7.3

 
10.1

 
6.5

 
2.0

 
5.9

v3.10.0.1
Mortgages and Notes Payable (Tables)
12 Months Ended
Dec. 31, 2018
Debt Disclosure [Abstract]  
Schedule of Consolidated Mortgages and Notes Payable
Our mortgages and notes payable consist of the following:
 
 
December 31,
 
2018
 
2017
Secured indebtedness: (1)
 
 
 
4.00% mortgage loan due 2029
$
97,179

 
$
98,981

 
97,179

 
98,981

Unsecured indebtedness:
 
 
 
7.50% notes due 2018 (2)

 
200,000

3.20% (3.363% effective rate) notes due 2021 (3)
298,936

 
298,504

3.625% (3.752% effective rate) notes due 2023 (4)
248,938

 
248,675

3.875% (4.038% effective rate) notes due 2027 (5)
296,734

 
296,334

4.125% (4.271% effective rate) notes due 2028 (6)
346,208

 

Variable rate term loan due 2018 (2)

 
10,000

Variable rate term loan due 2020 (7)
225,000

 
225,000

Variable rate term loan due 2022 (8)
200,000

 
200,000

Variable rate term loan due 2022 (9)
200,000

 
200,000

Revolving credit facility due 2022 (10)
182,000

 
245,000

 
1,997,816

 
1,923,513

Less-unamortized debt issuance costs
(9,164
)
 
(8,161
)
Total mortgages and notes payable, net
$
2,085,831

 
$
2,014,333

__________
(1)
Our secured mortgage loan was collateralized by real estate assets with an undepreciated book value of $147.6 million at December 31, 2018. Our fixed rate mortgage loans generally are either locked out to prepayment for all or a portion of their term or are prepayable subject to certain conditions including prepayment penalties.
(2)
This debt was repaid in 2018.
(3)
Net of unamortized original issuance discount of $1.1 million and $1.5 million as of December 31, 2018 and 2017, respectively.
(4)
Net of unamortized original issuance discount of $1.1 million and $1.3 million as of December 31, 2018 and 2017, respectively.
(5)
Net of unamortized original issuance discount of $3.3 million and $3.7 million as of December 31, 2018 and 2017, respectively.
(6)
Net of unamortized original issuance discount of $3.8 million as of December 31, 2018.
(7)
As more fully described in Note 6, we entered into floating-to-fixed interest rate swaps that effectively fixed LIBOR for $225.0 million of this loan through January 11, 2019. Accordingly, the equivalent fixed rate of this amount was 2.78%.
(8)
As more fully described in Note 6, we entered into floating-to-fixed interest rate swaps that effectively fix LIBOR for $50.0 million of this loan through January 2022. Accordingly, the equivalent fixed rate of this amount is 2.79%. The interest rate on the remaining $150.0 million was 3.45% at December 31, 2018.
(9)
The interest rate was 3.61% at December 31, 2018.
(10)
The interest rate was 3.46% at December 31, 2018.
Schedule of Long-term Debt Instruments
The following table sets forth scheduled future principal payments, including amortization, due on our mortgages and notes payable at December 31, 2018:

Years Ending December 31,
 
Principal Amount
2019
 
$
367

2020
 
225,444

2021
 
300,757

2022
 
583,038

2023
 
251,376

Thereafter
 
734,013

Less-unamortized debt issuance costs
 
(9,164
)
 
 
$
2,085,831


v3.10.0.1
Derivative Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Schedule of Derivative Instruments, Fair Value
The following table sets forth the gross fair value of our derivatives:

 
December 31,
 
2018
 
2017
Derivatives:
 
 
 
Derivatives designated as cash flow hedges in prepaid expenses and other assets:
 
 
 
Interest rate swaps
$
1,146

 
$
1,286

Derivatives designated as cash flow hedges in accounts payable, accrued expenses and other liabilities:
 
 
 
Interest rate swaps

$
3,581

 
$

Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance
The following table sets forth the effect of our cash flow hedges on accumulated other comprehensive income and interest expense:

 
Year Ended December 31,
 
2018
 
2017
 
2016
Derivatives Designated as Cash Flow Hedges:
 
 
 
 
 
Amount of unrealized gains recognized in accumulated other comprehensive income on derivatives (effective portion):
 
 
 
 
 
Interest rate swaps
$
4,161

 
$
1,732

 
$
5,703

Amount of (gains)/losses reclassified out of accumulated other comprehensive income into contractual interest expense (effective portion):
 
 
 
 
 
Interest rate swaps
$
(2,086
)
 
$
1,157

 
$
3,057

v3.10.0.1
Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]  
Scheduled Future Obligations, Operating Ground Leases
The following table sets forth our scheduled obligations for future minimum payments on operating ground leases at December 31, 2018:
 
Years Ending December 31,
 
Minimum Payments
2019
 
$
2,184

2020
 
2,223

2021
 
2,263

2022
 
2,305

2023
 
2,308

Thereafter
 
86,577

 
 
$
97,860

v3.10.0.1
Noncontrolling Interests (Tables) - Highwoods Properties, Inc. [Member]
12 Months Ended
Dec. 31, 2018
Noncontrolling Interest [Line Items]  
Noncontrolling Interests in the Operating Partnership
The following table sets forth the Company's noncontrolling interests in the Operating Partnership:

 
Year Ended December 31,
 
2018
 
2017
Beginning noncontrolling interests in the Operating Partnership
$
144,009

 
$
144,802

Adjustment of noncontrolling interests in the Operating Partnership to fair value
(33,427
)
 
(354
)
Conversions of Common Units to Common Stock
(4,043
)
 
(511
)
Net income attributable to noncontrolling interests in the Operating Partnership
4,588

 
5,059

Distributions to noncontrolling interests in the Operating Partnership
(5,167
)
 
(4,987
)
Total noncontrolling interests in the Operating Partnership
$
105,960

 
$
144,009


Net Income Available for Common Stockholders and Transfers From Noncontrolling Interests in the Operating Partnership
The following table sets forth net income available for common stockholders and transfers from the Company's noncontrolling interests in the Operating Partnership:

 
Year Ended December 31,
 
2018
 
2017
 
2016
Net income available for common stockholders
$
169,343

 
$
182,873

 
$
521,789

Increase in additional paid in capital from conversions of Common Units to Common Stock
4,043

 
511

 
3,057

Change from net income available for common stockholders and transfers from noncontrolling interests
$
173,386

 
$
183,384

 
$
524,846

v3.10.0.1
Disclosure About Fair Value of Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2018
Fair Value Disclosures [Abstract]  
Fair Value Measurements of Assets, Liabilities and Noncontrolling Interests
The following table sets forth our assets and liabilities and the Company's noncontrolling interests in the Operating Partnership that are measured or disclosed at fair value within the fair value hierarchy.
 
 
 
 
Level 1
 
Level 2
 
Level 3
 
Total
 
Quoted Prices
in Active
Markets for Identical Assets or Liabilities
 
Significant Observable Inputs
 
Significant Unobservable Inputs
Fair Value at December 31, 2018:
 
 
 
 
 
 
 
Assets:
 
 
 
 
 
 
 
Mortgages and notes receivable, at fair value (1)
$
5,599

 
$

 
$
5,599

 
$

Interest rate swaps (in prepaid expenses and other assets)
1,146

 

 
1,146

 

Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets)
1,849

 
1,849

 

 

Impaired real estate assets
10,252

 

 

 
10,252

Total Assets
$
18,846

 
$
1,849

 
$
6,745

 
$
10,252

Noncontrolling Interests in the Operating Partnership
$
105,960

 
$
105,960

 
$

 
$

Liabilities:
 
 
 
 
 
 
 
Mortgages and notes payable, net, at fair value (1)
$
2,056,248

 
$

 
$
2,056,248

 
$

Interest rate swaps (in accounts payable, accrued expenses and other liabilities)
3,581

 

 
3,581

 

Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities)
1,849

 
1,849

 

 

Total Liabilities
$
2,061,678

 
$
1,849

 
$
2,059,829

 
$

Fair Value at December 31, 2017:
 
 
 
 
 
 
 
Assets:
 
 
 
 
 
 
 
Mortgages and notes receivable, at fair value (1)
$
6,425

 
$

 
$
6,425

 
$

Interest rate swaps (in prepaid expenses and other assets)
1,286

 

 
1,286

 

Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets)
2,388

 
2,388

 

 

Total Assets
$
10,099

 
$
2,388

 
$
7,711

 
$

Noncontrolling Interests in the Operating Partnership
$
144,009

 
$
144,009

 
$

 
$

Liabilities:
 
 
 
 
 
 
 
Mortgages and notes payable, net, at fair value (1)
$
2,015,689

 
$

 
$
2,015,689

 
$

Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities)
2,388

 
2,388

 

 

Total Liabilities
$
2,018,077

 
$
2,388

 
$
2,015,689

 
$


__________
(1)    Amounts recorded at historical cost on our Consolidated Balance Sheets at December 31, 2018 and 2017.
v3.10.0.1
Equity (Tables)
12 Months Ended
Dec. 31, 2018
Class of Stock [Line Items]  
Schedule of Stock by Class, Preferred Stock
The following table sets forth the Company's Preferred Stock:
 
 
 
Issue Date
 
Number of Shares Outstanding
 
Carrying Value
 
Liquidation Preference Per Share
 
Optional Redemption Date
 
Annual Dividends Payable Per Share
 
 
 
 
(in thousands)
 
 
 
 
 
 
 
 
December 31, 2018
 
 
 
 
 
 
 
 
 
 
 
 
8.625% Series A Cumulative Redeemable
 
2/12/1997
 
29

 
$
28,877

 
$
1,000

 
2/12/2027
 
$
86.25

December 31, 2017
 
 
 
 
 
 
 
 
 
 
 
 
8.625% Series A Cumulative Redeemable
 
2/12/1997
 
29

 
$
28,892

 
$
1,000

 
2/12/2027
 
$
86.25

The following table sets forth the number of shares of Common Stock reserved for future issuance under the Company's long-term equity incentive plans:
 
December 31,
 
2018
 
2017
Outstanding stock options and warrants
611,518

 
655,822

Possible future issuance under equity incentive plans
2,188,696

 
2,404,131

 
2,800,214

 
3,059,953

Common Stock [Member]  
Class of Stock [Line Items]  
Schedule of Dividends Payable
The following table sets forth the Company's estimated taxability to the common stockholders of dividends per share for federal income tax purposes:
 
 
Year Ended December 31,
 
2018
 
2017 (1)
 
2016 (1)
Ordinary income
$
1.48

 
$
1.50

 
$
1.15

Capital gains
0.31

 
0.32

 
1.29

Return of capital
0.06

 

 

Total
$
1.85

 
$
1.82

 
$
2.44

__________
(1)
During 2016, cash dividends declared on Common Stock totaled $2.50 per share, of which approximately $0.06 was recognized as a 2017 distribution for federal income tax purposes.

Preferred Stock [Member]  
Class of Stock [Line Items]  
Schedule of Dividends Payable
The following table sets forth the Company's estimated taxability to the preferred stockholders of dividends per share for federal income tax purposes:
 
 
Year Ended December 31,
 
2018
 
2017
 
2016
8.625% Series A Cumulative Redeemable:
 
 
 
 
 
Ordinary income
$
71.22

 
$
71.00

 
$
40.65

Capital gains
15.03

 
15.25

 
45.60

Total
$
86.25

 
$
86.25

 
$
86.25


Highwoods Realty Limited Partnership [Member]  
Class of Stock [Line Items]  
Schedule of Stock by Class, Preferred Stock
The following table sets forth the Operating Partnership's Preferred Units:
 
 
 
Issue Date
 
Number of
Units
Outstanding
 
Carrying
Value
 
Liquidation Preference
Per Unit
 
Optional Redemption
Date
 
Annual
Distributions
Payable
Per Unit
 
 
 
 
(in thousands)
 
 
 
 
 
 
 
 
December 31, 2018
 
 
 
 
 
 
 
 
 
 
 
 
8.625% Series A Cumulative Redeemable
 
2/12/1997
 
29

 
$
28,877

 
$
1,000

 
2/12/2027
 
$
86.25

December 31, 2017
 
 
 
 
 
 
 
 
 
 
 
 
8.625% Series A Cumulative Redeemable
 
2/12/1997
 
29

 
$
28,892

 
$
1,000

 
2/12/2027
 
$
86.25

v3.10.0.1
Employee Benefit Plans (Tables)
12 Months Ended
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Stock by Class
The following table sets forth the Company's Preferred Stock:
 
 
 
Issue Date
 
Number of Shares Outstanding
 
Carrying Value
 
Liquidation Preference Per Share
 
Optional Redemption Date
 
Annual Dividends Payable Per Share
 
 
 
 
(in thousands)
 
 
 
 
 
 
 
 
December 31, 2018
 
 
 
 
 
 
 
 
 
 
 
 
8.625% Series A Cumulative Redeemable
 
2/12/1997
 
29

 
$
28,877

 
$
1,000

 
2/12/2027
 
$
86.25

December 31, 2017
 
 
 
 
 
 
 
 
 
 
 
 
8.625% Series A Cumulative Redeemable
 
2/12/1997
 
29

 
$
28,892

 
$
1,000

 
2/12/2027
 
$
86.25

The following table sets forth the number of shares of Common Stock reserved for future issuance under the Company's long-term equity incentive plans:
 
December 31,
 
2018
 
2017
Outstanding stock options and warrants
611,518

 
655,822

Possible future issuance under equity incentive plans
2,188,696

 
2,404,131

 
2,800,214

 
3,059,953

Disclosure of Share-based Compensation Arrangements by Share-based Payment Award
The following table sets forth stock option activity:

 
Options Outstanding
 
Number of Options
 
Weighted Average Exercise Price
Stock options outstanding at December 31, 2015
687,228

 
$
37.97

Granted
244,664

 
43.55

Canceled
(14,743
)
 
42.64

Exercised
(330,034
)
 
34.26

Stock options outstanding at December 31, 2016
587,115

 
42.26

Granted
168,748

 
52.49

Exercised
(115,041
)
 
40.41

Stock options outstanding at December 31, 2017
640,822

 
45.29

Exercised
(44,304
)
 
40.15

Stock options outstanding at December 31, 2018 (1) (2)
596,518

 
$
45.67

__________
(1)
The outstanding options at December 31, 2018 had a weighted average remaining life of 6.8 years.
(2)
The Company had 303,674 options exercisable at December 31, 2018 with a weighted average exercise price of $43.67, weighted average remaining life of 6.2 years and intrinsic value of $0.1 million. Of these exercisable options, 217,386 had exercise prices higher than the market price of our Common Stock at December 31, 2018.
Schedule of NonQualified Deferred Compensation Liability
The following table sets forth our deferred compensation liability:

 
Year Ended December 31,
 
2018
 
2017
 
2016
Beginning deferred compensation liability
$
2,388

 
$
2,451

 
$
2,736

Mark-to-market adjustment to deferred compensation (in general and administrative expenses)
(182
)
 
492

 
222

Distributions from deferred compensation plans
(357
)
 
(555
)
 
(507
)
Total deferred compensation liability
$
1,849

 
$
2,388

 
$
2,451

Stock Options [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions
The weighted average fair values of options granted during 2017 and 2016 were $6.72 and $4.61, respectively, per option. The fair values of the options granted were determined at the grant dates using the following assumptions:

 
2017
 
2016
Risk free interest rate (1) 
2.0
%
 
1.4
%
Common stock dividend yield (2) 
3.4
%
 
3.9
%
Expected volatility (3) 
19.5
%
 
19.7
%
Average expected option life (years) (4)
5.75

 
5.75

__________
(1)
Represents the interest rate as of the grant date on US treasury bonds having the same life as the estimated life of the option grants.
(2)
The dividend yield is calculated utilizing the then current regular dividend rate for a one-year period and the per share price of Common Stock on the date of grant.
(3)
Based on the historical volatility of Common Stock over a period relevant to the related stock option grant.
(4)
The average expected option life is based on an analysis of the Company's historical data.
Time-Based Restricted Stock [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Share-based Compensation, Restricted Stock Units Award Activity
The following table sets forth time-based restricted stock activity:
 
 
Number of Shares
 
Weighted Average Grant Date Fair Value
Restricted shares outstanding at December 31, 2015
204,720

 
$
39.74

Awarded and issued (1)
72,698

 
43.59

Vested (2)
(84,212
)
 
37.76

Forfeited
(4,225
)
 
41.96

Restricted shares outstanding at December 31, 2016
188,981

 
42.06

Awarded and issued (1)
61,404

 
52.49

Vested (2)
(78,139
)
 
40.55

Restricted shares outstanding at December 31, 2017
172,246

 
46.46

Awarded and issued (1)
94,984

 
43.01

Vested (2)
(73,307
)
 
44.19

Forfeited
(2,684
)
 
45.89

Restricted shares outstanding at December 31, 2018
191,239

 
$
45.62

__________
(1)
The weighted average fair value at grant date of time-based restricted stock issued during the years ended December 31, 2018, 2017 and 2016 was $4.1 million, $3.2 million and $3.2 million, respectively.
(2)
The vesting date fair value of time-based restricted stock that vested during the years ended December 31, 2018, 2017 and 2016 was $3.2 million, $4.1 million and $3.7 million, respectively. Vested shares include those shares surrendered by employees to satisfy tax withholding obligations in connection with such vesting.
Total Return-Based Restricted Stock [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions
The fair values of the total return-based restricted stock granted were determined at the grant dates using a Monte Carlo simulation model and the following assumptions:
 
 
2018
 
2017
 
2016
Risk free interest rate (1) 
2.3
%
 
1.6
%
 
0.9
%
Common stock dividend yield (2) 
3.9
%
 
3.5
%
 
4.1
%
Expected volatility (3) 
41.1
%
 
42.8
%
 
43.1
%
__________
(1)
Represents the interest rate as of the grant date on US treasury bonds having the same life as the estimated life of the total return-based restricted stock grants.
(2)
The dividend yield is calculated utilizing the then current regular dividend rate for a one-year period and the average per share price of Common Stock during the three-month period preceding the date of grant.
(3)
Based on the historical volatility of Common Stock over a period relevant to the related total return-based restricted stock grant.
Schedule of Share-based Compensation, Restricted Stock Units Award Activity
The following table sets forth total return-based restricted stock activity:
 
 
Number of Shares
 
Weighted Average Grant Date Fair Value
Restricted shares outstanding at December 31, 2015
195,303

 
$
36.66

Awarded and issued (1) (3)
64,701

 
40.87

Vested (2) (3)
(71,617
)
 
36.50

Forfeited
(4,663
)
 
39.91

Restricted shares outstanding at December 31, 2016
183,724

 
39.82

Awarded and issued (1) (3)
84,013

 
44.76

Vested (2) (3)
(107,013
)
 
37.88

Restricted shares outstanding at December 31, 2017
160,724

 
44.72

Awarded and issued (1)
77,456

 
40.81

Vested (2)
(41,160
)
 
45.61

Forfeited (4)
(16,926
)
 
45.24

Restricted shares outstanding at December 31, 2018
180,094

 
$
43.34

__________
(1)
The fair value at grant date of total return-based restricted stock issued during the years ended December 31, 2018, 2017 and 2016 was $3.2 million, $2.4 million and $2.4 million, respectively, at target.
(2)
The vesting date fair value of total return-based restricted stock that vested during the years ended December 31, 2018, 2017 and 2016 was $1.8 million, $5.6 million and $3.1 million, respectively, based on the performance of the specific plans. Vested shares include those shares surrendered by employees to satisfy tax withholding obligations in connection with such vesting.
(3)
The 2017 and 2016 amounts include 34,669 and 6,647 additional shares, respectively, that were issued at the end of the applicable measurement period because actual performance exceeded certain levels of performance.
(4)
Includes 13,707 shares that were forfeited at the end of the applicable measurement period because the applicable total return did not meet the target level.

v3.10.0.1
Accumulated Other Comprehensive Income (Tables)
12 Months Ended
Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Components of Accumulated Comprehensive Income/(Loss)
The following table sets forth the components of accumulated other comprehensive income:
 
 
December 31,
 
2018
 
2017
Cash flow hedges:
 
 
 
Beginning balance
$
7,838

 
$
4,949

Unrealized gains on cash flow hedges
4,161

 
1,732

Amortization of cash flow hedges (1)
(2,086
)
 
1,157

Total accumulated other comprehensive income
$
9,913

 
$
7,838


__________
(1)
Amounts reclassified out of accumulated other comprehensive income into contractual interest expense.
v3.10.0.1
Rental and Other Revenues (Tables)
12 Months Ended
Dec. 31, 2018
Rental and Other Revenues [Abstract]  
Schedule of Future Minimum Rental Payments for Operating Leases
he following table sets forth our scheduled future minimum base rents to be received from customers for leases in effect at December 31, 2018 for the properties that we wholly own:
 
2019
$
618,014

2020
581,399

2021
524,381

2022
488,157

2023
428,461

Thereafter
2,068,891

 
$
4,709,303


v3.10.0.1
Real Estate and Other Assets Held For Sale and Discontinued Operations (Tables)
12 Months Ended
Dec. 31, 2018
Discontinued Operations and Disposal Groups [Abstract]  
Real Estate and Other Assets of the Properties Classified As Held For Sale
The following table sets forth the assets held for sale at December 31, 2018 and 2017, which are considered non-core:
 
 
December 31,
 
2018
 
2017
Assets:
 
 
 
Land
$

 
$
870

Buildings and tenant improvements

 
21,318

Land held for development

 
355

Less-accumulated depreciation

 
(9,304
)
Net real estate assets

 
13,239

Accrued straight-line rents receivable

 
591

Deferred leasing costs, net

 
253

Prepaid expenses and other assets

 
35

Real estate and other assets, net, held for sale
$

 
$
14,118

Operations Classified As Discontinued Operations
The following tables set forth the results of operations and cash flows for the years ended December 31, 2018, 2017 and 2016 related to discontinued operations:

 
Year Ended December 31,
 
2018
 
2017
 
2016
Rental and other revenues
$

 
$

 
$
8,484

Operating expenses:
 
 
 
 
 
Rental property and other expenses

 

 
3,334

General and administrative

 

 
1,388

Total operating expenses

 

 
4,722

Interest expense

 

 
85

Other income

 

 
420

Income from discontinued operations

 

 
4,097

Net gains on disposition of discontinued operations

 

 
414,496

Total income from discontinued operations
$

 
$

 
$
418,593


 
 
Year Ended December 31,
 
2018
 
2017
 
2016
Cash flows from operating activities
$

 
$

 
$
2,040

Cash flows from investing activities
$

 
$

 
$
646,738

v3.10.0.1
Earnings Per Share and Per Unit (Tables)
12 Months Ended
Dec. 31, 2018
Earnings Per Share/Unit Basic and Diluted [Line Items]  
Earnings Per Share
The following table sets forth the computation of basic and diluted earnings per share of the Company:

 
Year Ended December 31,
 
2018
 
2017
 
2016
Earnings per Common Share - basic:
 
 
 
 
 
Numerator:
 
 
 
 
 
Income from continuing operations
$
177,630

 
$
191,663

 
$
122,546

Net (income) attributable to noncontrolling interests in the Operating Partnership from continuing operations
(4,588
)
 
(5,059
)
 
(3,331
)
Net (income) attributable to noncontrolling interests in consolidated affiliates from continuing operations
(1,207
)
 
(1,239
)
 
(1,253
)
Dividends on Preferred Stock
(2,492
)
 
(2,492
)
 
(2,501
)
Income from continuing operations available for common stockholders
169,343

 
182,873

 
115,461

Income from discontinued operations

 

 
418,593

Net (income) attributable to noncontrolling interests in the Operating Partnership from discontinued operations

 

 
(12,265
)
Income from discontinued operations available for common stockholders

 

 
406,328

Net income available for common stockholders
$
169,343

 
$
182,873

 
$
521,789

Denominator:
 
 
 
 
 
Denominator for basic earnings per Common Share – weighted average shares
103,439

 
102,682

 
98,439

Earnings per Common Share - basic:
 
 
 
 
 
Income from continuing operations available for common stockholders
$
1.64

 
$
1.78

 
$
1.17

Income from discontinued operations available for common stockholders

 

 
4.13

Net income available for common stockholders
$
1.64

 
$
1.78

 
$
5.30

Earnings per Common Share - diluted:
 
 
 
 
 
Numerator:
 
 
 
 
 
Income from continuing operations
$
177,630

 
$
191,663

 
$
122,546

Net (income) attributable to noncontrolling interests in consolidated affiliates from continuing operations
(1,207
)
 
(1,239
)
 
(1,253
)
Dividends on Preferred Stock
(2,492
)
 
(2,492
)
 
(2,501
)
Income from continuing operations available for common stockholders before net (income) attributable to noncontrolling interests in the Operating Partnership
173,931

 
187,932

 
118,792

Income from discontinued operations available for common stockholders

 

 
418,593

Net income available for common stockholders before net (income) attributable to noncontrolling interests in the Operating Partnership
$
173,931

 
$
187,932

 
$
537,385

Denominator:
 
 
 
 
 
Denominator for basic earnings per Common Share – weighted average shares
103,439

 
102,682

 
98,439

Add:
 
 
 
 
 
Stock options using the treasury method
33

 
79

 
87

Noncontrolling interests Common Units
2,796

 
2,833

 
2,872

Denominator for diluted earnings per Common Share – adjusted weighted average shares and assumed conversions (1)
106,268

 
105,594

 
101,398

Earnings per Common Share - diluted:
 
 
 
 
 
Income from continuing operations available for common stockholders
$
1.64

 
$
1.78

 
$
1.17

Income from discontinued operations available for common stockholders

 

 
4.13

Net income available for common stockholders
$
1.64

 
$
1.78

 
$
5.30

__________
(1)
Includes all unvested restricted stock where dividends on such restricted stock are non-forfeitable.
Highwoods Realty Limited Partnership [Member]  
Earnings Per Share/Unit Basic and Diluted [Line Items]  
Earnings Per Unit
The following table sets forth the computation of basic and diluted earnings per unit of the Operating Partnership:

 
Year Ended December 31,
 
2018
 
2017
 
2016
Earnings per Common Unit - basic:
 
 
 
 
 
Numerator:
 
 
 
 
 
Income from continuing operations
$
177,630

 
$
191,663

 
$
122,546

Net (income) attributable to noncontrolling interests in consolidated affiliates from continuing operations
(1,207
)
 
(1,239
)
 
(1,253
)
Distributions on Preferred Units
(2,492
)
 
(2,492
)
 
(2,501
)
Income from continuing operations available for common unitholders
173,931

 
187,932

 
118,792

Income from discontinued operations available for common unitholders

 

 
418,593

Net income available for common unitholders
$
173,931

 
$
187,932

 
$
537,385

Denominator:
 
 
 
 
 
Denominator for basic earnings per Common Unit – weighted average units
105,826

 
105,106

 
100,902

Earnings per Common Unit - basic:
 
 
 
 
 
Income from continuing operations available for common unitholders
$
1.64

 
$
1.79

 
$
1.18

Income from discontinued operations available for common unitholders

 

 
4.15

Net income available for common unitholders
$
1.64

 
$
1.79

 
$
5.33

Earnings per Common Unit - diluted:
 
 
 
 
 
Numerator:
 
 
 
 
 
Income from continuing operations
$
177,630

 
$
191,663

 
$
122,546

Net (income) attributable to noncontrolling interests in consolidated affiliates from continuing operations
(1,207
)
 
(1,239
)
 
(1,253
)
Distributions on Preferred Units
(2,492
)
 
(2,492
)
 
(2,501
)
Income from continuing operations available for common unitholders
173,931

 
187,932

 
118,792

Income from discontinued operations available for common unitholders

 

 
418,593

Net income available for common unitholders
$
173,931

 
$
187,932

 
$
537,385

Denominator:
 
 
 
 
 
Denominator for basic earnings per Common Unit – weighted average units
105,826

 
105,106

 
100,902

Add:
 
 
 
 
 
Stock options using the treasury method
33

 
79

 
87

Denominator for diluted earnings per Common Unit – adjusted weighted average units and assumed conversions (1)
105,859

 
105,185

 
100,989

Earnings per Common Unit - diluted:
 
 
 
 
 
Income from continuing operations available for common unitholders
$
1.64

 
$
1.79

 
$
1.18

Income from discontinued operations available for common unitholders

 

 
4.14

Net income available for common unitholders
$
1.64

 
$
1.79

 
$
5.32

__________
(1)
Includes all unvested restricted stock where distributions on such restricted stock are non-forfeitable.
v3.10.0.1
Income Taxes (Tables)
12 Months Ended
Dec. 31, 2018
Income Tax Disclosure [Abstract]  
Schedule of Income Tax Expense/(Benefit)
The following table sets forth the Company's income tax expense/(benefit):

 
Year Ended December 31,
 
2018
 
2017
 
2016
Current tax expense/(benefit):
 
 
 
 
 
Federal
$
133

 
$
(177
)
 
$
(38
)
State
112

 
105

 
89

 
245

 
(72
)
 
51

Deferred tax expense/(benefit):
 
 
 
 
 
Federal
(95
)
 
223

 
(160
)
State
(68
)
 
(9
)
 
87

 
(163
)
 
214

 
(73
)
Total income tax expense/(benefit)
$
82

 
$
142

 
$
(22
)
v3.10.0.1
Segment Information (Tables)
12 Months Ended
Dec. 31, 2018
Segment Reporting [Abstract]  
Segment Information
The following tables summarize the rental and other revenues and net operating income, the primary industry property-level performance metric used by our chief operating decision maker and which is defined as rental and other revenues less rental property and other expenses, for each of our reportable segments.

 
Year Ended December 31,
 
2018
 
2017
 
2016
Rental and Other Revenues:
 
 
 
 
 
Office:
 
 
 
 
 
Atlanta
$
141,337

 
$
140,323

 
$
134,601

Greensboro
22,322

 
21,453

 
20,522

Memphis
40,230

 
45,430

 
48,251

Nashville
121,836

 
111,506

 
95,912

Orlando
53,771

 
51,236

 
46,260

Pittsburgh
61,177

 
59,103

 
58,789

Raleigh
118,352

 
119,254

 
112,958

Richmond
45,729

 
43,959

 
44,315

Tampa
102,404

 
97,524

 
89,903

Total Office Segment
707,158

 
689,788

 
651,511

Other
12,877

 
12,949

 
14,123

Total Rental and Other Revenues
$
720,035

 
$
702,737

 
$
665,634


17.
Segment Information - Continued

 
Year Ended December 31,
 
2018
 
2017
 
2016
Net Operating Income:
 
 
 
 
 
Office:
 
 
 
 
 
Atlanta
$
87,503

 
$
89,575

 
$
84,733

Greensboro
14,275

 
13,612

 
12,781

Memphis
25,659

 
28,128

 
30,038

Nashville
88,554

 
81,204

 
68,678

Orlando
32,841

 
30,526

 
26,525

Pittsburgh
36,233

 
34,784

 
34,175

Raleigh
86,053

 
86,475

 
80,803

Richmond
31,276

 
29,946

 
30,505

Tampa
65,819

 
62,378

 
56,493

Total Office Segment
468,213

 
456,628

 
424,731

Other
9,407

 
9,221

 
9,818

Total Net Operating Income
477,620

 
465,849

 
434,549

Reconciliation to income from continuing operations before disposition of investment properties and activity in unconsolidated affiliates:
 
 
 
 
 
Depreciation and amortization
(229,955
)
 
(227,832
)
 
(220,140
)
Impairments of real estate assets
(423
)
 
(1,445
)
 

General and administrative expenses
(40,006
)
 
(39,648
)
 
(38,153
)
Interest expense
(71,422
)
 
(69,105
)
 
(76,648
)
Other income
1,940

 
2,283

 
2,338

Income from continuing operations before disposition of investment properties and activity in unconsolidated affiliates
$
137,754

 
$
130,102

 
$
101,946




17.
Segment Information - Continued

 
December 31,
 
2018
 
2017
Total Assets:
 
 
 
Office:
 
 
 
Atlanta
$
1,047,850

 
$
1,049,100

Greensboro
118,611

 
134,194

Memphis
213,276

 
218,088

Nashville
937,732

 
806,725

Orlando
306,370

 
306,970

Pittsburgh
329,918

 
334,136

Raleigh
792,464

 
762,331

Richmond
248,669

 
229,468

Tampa
522,263

 
550,375

Total Office Segment
4,517,153

 
4,391,387

Other
157,856

 
232,404

Total Assets
$
4,675,009

 
$
4,623,791

v3.10.0.1
Quarterly Financial Data (Unaudited) (Tables)
12 Months Ended
Dec. 31, 2018
Quarterly Financial Data [Line Items]  
Schedule of Quarterly Financial Data
The following tables set forth quarterly financial information of the Company:

 
Year Ended December 31, 2018
 
First
Quarter
 
Second
Quarter
 
Third
Quarter
 
Fourth
Quarter
 
Total
Rental and other revenues
$
180,438

 
$
178,792

 
$
179,417

 
$
181,388

 
$
720,035

 
 
 
 
 
 
 
 
 
 
Net income
34,246

 
52,998

 
35,009

 
55,377

 
177,630

Net (income) attributable to noncontrolling interests in the Operating Partnership
(888
)
 
(1,381
)
 
(902
)
 
(1,417
)
 
(4,588
)
Net (income) attributable to noncontrolling interests in consolidated affiliates
(286
)
 
(308
)
 
(324
)
 
(289
)
 
(1,207
)
Dividends on Preferred Stock
(623
)
 
(623
)
 
(623
)
 
(623
)
 
(2,492
)
Net income available for common stockholders
$
32,449

 
$
50,686

 
$
33,160

 
$
53,048

 
$
169,343

Earnings per Common Share – basic:
 
 
 
 
 
 
 
 
 
Net income available for common stockholders
$
0.31

 
$
0.49

 
$
0.32

 
$
0.51

 
$
1.64

Earnings per Common Share – diluted:
 
 
 
 
 
 
 
 
 
Net income available for common stockholders
$
0.31

 
$
0.49

 
$
0.32

 
$
0.51

 
$
1.64



 
Year Ended December 31, 2017
 
First
Quarter
 
Second
Quarter
 
Third
Quarter
 
Fourth
Quarter
 
Total
Rental and other revenues
$
169,408

 
$
177,283

 
$
180,185

 
$
175,861

 
$
702,737

 
 
 
 
 
 
 
 
 
 
Net income
33,485

 
39,554

 
59,549

 
59,075

 
191,663

Net (income) attributable to noncontrolling interests in the Operating Partnership
(888
)
 
(1,043
)
 
(1,571
)
 
(1,557
)
 
(5,059
)
Net (income) attributable to noncontrolling interests in consolidated affiliates
(300
)
 
(299
)
 
(315
)
 
(325
)
 
(1,239
)
Dividends on Preferred Stock
(623
)
 
(623
)
 
(623
)
 
(623
)
 
(2,492
)
Net income available for common stockholders
$
31,674

 
$
37,589

 
$
57,040

 
$
56,570

 
$
182,873

Earnings per Common Share – basic:
 
 
 
 
 
 
 
 
 
Net income available for common stockholders
$
0.31

 
$
0.37

 
$
0.55

 
$
0.55

 
$
1.78

Earnings per Common Share – diluted:
 
 
 
 
 
 
 
 
 
Net income available for common stockholders
$
0.31

 
$
0.37

 
$
0.55

 
$
0.55

 
$
1.78


Highwoods Realty Limited Partnership [Member]  
Quarterly Financial Data [Line Items]  
Schedule of Quarterly Financial Data
The following tables set forth quarterly financial information of the Operating Partnership:

 
Year Ended December 31, 2018
 
First
Quarter
 
Second
Quarter
 
Third
Quarter
 
Fourth
Quarter
 
Total
Rental and other revenues
$
180,438

 
$
178,792

 
$
179,417

 
$
181,388

 
$
720,035

 
 
 
 
 
 
 
 
 
 
Net income
34,246

 
52,998

 
35,009

 
55,377

 
177,630

Net (income) attributable to noncontrolling interests in consolidated affiliates
(286
)
 
(308
)
 
(324
)
 
(289
)
 
(1,207
)
Distributions on Preferred Units
(623
)
 
(623
)
 
(623
)
 
(623
)
 
(2,492
)
Net income available for common unitholders
$
33,337

 
$
52,067

 
$
34,062

 
$
54,465

 
$
173,931

Earnings per Common Unit – basic:
 
 
 
 
 
 
 
 
 
Net income available for common unitholders
$
0.32

 
$
0.49

 
$
0.32

 
$
0.51

 
$
1.64

Earnings per Common Unit – diluted:
 
 
 
 
 
 
 
 
 
Net income available for common unitholders
$
0.32

 
$
0.49

 
$
0.32

 
$
0.51

 
$
1.64



 
Year Ended December 31, 2017
 
First
Quarter
 
Second
Quarter
 
Third
Quarter
 
Fourth
Quarter
 
Total
Rental and other revenues
$
169,408

 
$
177,283

 
$
180,185

 
$
175,861

 
$
702,737

 
 
 
 
 
 
 
 
 
 
Net income
33,485

 
39,554

 
59,549

 
59,075

 
191,663

Net (income) attributable to noncontrolling interests in consolidated affiliates
(300
)
 
(299
)
 
(315
)
 
(325
)
 
(1,239
)
Distributions on Preferred Units
(623
)
 
(623
)
 
(623
)
 
(623
)
 
(2,492
)
Net income available for common unitholders
$
32,562

 
$
38,632

 
$
58,611

 
$
58,127

 
$
187,932

Earnings per Common Unit – basic:
 
 
 
 
 
 
 
 
 
Net income available for common unitholders
$
0.31

 
$
0.37

 
$
0.55

 
$
0.55

 
$
1.79

Earnings per Common Unit – diluted:
 
 
 
 
 
 
 
 
 
Net income available for common unitholders
$
0.31

 
$
0.37

 
$
0.55

 
$
0.55

 
$
1.79

v3.10.0.1
Description of Business and Significant Accounting Policies (Details)
$ in Thousands, ft² in Millions
12 Months Ended
Dec. 31, 2018
USD ($)
a
ft²
property
customers
shares
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Description of Business [Abstract]      
Rentable square feet of commercial real estate (in square feet) | ft² 30.5    
Rentable square feet of commercial real estate under development (in square feet) | ft² 1.8    
Undeveloped land suitable for future development (in acres) | a 350    
Number of common units required to convert to one share of common stock (in shares) | shares 1    
Number of trading days preceeding Redemption Notice Date (in days) 10 days    
Consolidated in-service office properties not wholly owned (in units) | property 3    
Self insurance liability $ 500    
Real estate assets, depreciation expense $ 191,035 $ 184,385 $ 173,072
Maturity of highly liquid investments (in months) 3 months    
Percent of annual REIT taxable income required to pay to the Company's stockholders 90.00%    
Customers with leases on wholly owned properties | customers 1,654    
Percent of annualized cash rental revenue derived from geographic locations 10.00%    
Limit of consolidated revenue generated by any single customer 5.00%    
Historical capitalized leasing related costs $ 2,500    
Minimum [Member]      
Description of Business [Abstract]      
Adjustment interval of variable debt interest rates, mimimum (in months) 1 month    
Maximum [Member]      
Description of Business [Abstract]      
Adjustment interval of variable debt interest rates, mimimum (in months) 3 months    
Building [Member]      
Description of Business [Abstract]      
Property, plant and equipment useful life 40 years    
Building Improvements [Member]      
Description of Business [Abstract]      
Property, plant and equipment useful life 15 years    
Furniture and Fixtures [Member] | Minimum [Member]      
Description of Business [Abstract]      
Property, plant and equipment useful life 5 years    
Furniture and Fixtures [Member] | Maximum [Member]      
Description of Business [Abstract]      
Property, plant and equipment useful life 7 years    
Leaseholds and Leasehold Improvements [Member] | Minimum [Member]      
Description of Business [Abstract]      
Property, plant and equipment useful life 3 years    
Leaseholds and Leasehold Improvements [Member] | Maximum [Member]      
Description of Business [Abstract]      
Property, plant and equipment useful life 10 years    
Highwoods Properties, Inc. [Member]      
Description of Business [Abstract]      
Common Units of partnership owned (in shares) | shares 103,100,000    
Percentage of ownership of Common Units 97.40% 97.30%  
Common units redeemed for a like number of common shares of stock (in shares) | shares 90,001    
Highwoods Realty Limited Partnership [Member]      
Description of Business [Abstract]      
Common Units of partnership not owned by the Company (in shares) | shares 2,700,000    
Accounting Standards Update 2016-18 [Member]      
Description of Business [Abstract]      
Net increase/(decrease) in investing activities, effect of adoption, quantification   $ (55,900) $ 12,400
Accounting Standards Update 2016-02 [Member] | Minimum [Member]      
Description of Business [Abstract]      
Estimated right of use asset equal to the present value of the minimum lease payments required under each ground lease $ 31,000    
Estimated lease liability equal to the present value of the minimum lease payments required under each ground lease 31,000    
Accounting Standards Update 2016-02 [Member] | Maximum [Member]      
Description of Business [Abstract]      
Estimated right of use asset equal to the present value of the minimum lease payments required under each ground lease 36,000    
Estimated lease liability equal to the present value of the minimum lease payments required under each ground lease $ 36,000    
v3.10.0.1
Real Estate Assets Real Estate Assets (Details)
ft² in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2018
USD ($)
a
ft²
property
parcel
Dec. 31, 2017
USD ($)
property
Dec. 31, 2016
USD ($)
a
ft²
property
Acquisitions [Abstract]      
Undeveloped land suitable for future development (in acres) | a 350    
Acquisition-related costs
Dispositions [Abstract]      
Rentable square feet of commercial real estate (in square feet) | ft² 30,500    
Gains on disposition of discontinued operations $ 0 0 414,496
Gains on disposition of property 37,638 54,157 14,807
Impairments [Abstract]      
Impairments of real estate assets $ 423 1,445 $ 0
Nashville TN Land Acquisition (03/2018) [Member]      
Acquisitions [Abstract]      
Number of development parcels acquired (in parcels) | parcel 2    
Undeveloped land suitable for future development (in acres) | a 9    
Acquisition purchase price $ 50,600    
Fee Simple Title Raleigh, NC (03/2017) [Member]      
Acquisitions [Abstract]      
Acquisition purchase price   $ 2,600  
Raleigh NC Building Acquisition (09/2016) [Member]      
Acquisitions [Abstract]      
Net rentable square feet of acquisition (in sqft) | ft²     243
Acquisition purchase price     $ 76,900
Acquisition-related costs     $ 300
Fee Simple Title Pittsburgh, PA (09/2016) [Member]      
Acquisitions [Abstract]      
Number of office properties | property     1
Acquisition purchase price     $ 18,500
Acquisition-related costs     500
Raleigh NC Development Land (09/2016) [Member]      
Acquisitions [Abstract]      
Acquisition purchase price     $ 5,800
Nashville TN Land Acquisition (6/2016) [Member]      
Acquisitions [Abstract]      
Undeveloped land suitable for future development (in acres) | a     14
Acquisition purchase price     $ 9,100
2018 Dispositions [Member]      
Dispositions [Abstract]      
Number of buildings sold | property 3    
Purchase price of real estate $ 90,600    
Gains on disposition of property 37,600    
2017 Dispositions [Member]      
Dispositions [Abstract]      
Number of buildings sold | property   15  
Purchase price of real estate   $ 135,600  
Closing credits excluded for unfunded building and/or tenant improvements   3,700  
Gains on disposition of property   54,200  
2016 Dispositions [Member]      
Dispositions [Abstract]      
Number of buildings sold | property     2
Purchase price of real estate     $ 31,100
Closing credits excluded for unfunded building and/or tenant improvements     500
Gains on disposition of property     12,400
Additional purchase price consideration     400
Division Exit [Member]      
Dispositions [Abstract]      
Purchase price of real estate     660,000
Closing credits excluded for unfunded building and/or tenant improvements     4,800
Gains on disposition of discontinued operations     414,500
Gains on disposition of property     $ 1,300
Related Party Office Building Disposition [Member]      
Dispositions [Abstract]      
Rentable square feet of commercial real estate (in square feet) | ft²     32
Purchase price of real estate     $ 4,700
Closing credits excluded for unfunded building and/or tenant improvements     100
Gains on disposition of property     $ 1,100
Buyer occupancy percentage (in hundredths)     79.00%
2018 Impairments [Member]      
Impairments [Abstract]      
Impairments of real estate assets $ 400    
2017 Impairments [Member]      
Impairments [Abstract]      
Impairments of real estate assets   $ 1,400  
v3.10.0.1
Investments In and Advances To Affiliates (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Schedule of Equity Method Investments [Line Items]      
Development, management and leasing fees recognized from unconsolidated affiliates $ 0.4 $ 1.4 $ 0.8
Percentage of equity interest in joint ventures, maximum 50.00%    
Difference between cost of investments and the net book value of underlying net assets $ 0.6 0.7  
Receivables from management and leasing fees $ 0.1 $ 0.1  
Plaza Colonnade, Tenant-in-Common [Member]      
Schedule of Equity Method Investments [Line Items]      
Percentage of equity interest in joint ventures, maximum 50.00%    
Kessinger/Hunter & Company, LC [Member]      
Schedule of Equity Method Investments [Line Items]      
Percentage of equity interest in joint ventures, maximum 26.50%    
Highwoods DLF Forum, LLC Joint Venture [Member]      
Schedule of Equity Method Investments [Line Items]      
Percentage of equity interest in joint ventures, maximum 25.00%    
Highwoods DLF 98/29, LLC Joint Venture [Member]      
Schedule of Equity Method Investments [Line Items]      
Percentage of equity interest in joint ventures, maximum 22.80%    
Highwoods-Markel Associates, LLC Joint Venture [Member]      
Consolidated Affiliates:      
Percentage of equity interest in consolidated affiliates 50.00%    
Fair value of noncontrolling interests in consolidated affiliate $ 30.1    
v3.10.0.1
Intangible Assets and Below Market Lease Liabilities (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Intangible assets and below market lease liabilities, net [Abstract]      
Deferred leasing costs, gross $ 344,548 $ 344,191  
Deferred leasing costs, accumulated amortization (149,275) (143,512)  
Deferred leasing costs, net/Total scheduled future amortization of intangible assets 195,273 200,679  
Acquisition-related below market lease liabilities, gross 57,955 59,947  
Acquisition-related below market lease liabilities, accumulated amortization (32,307) (28,214)  
Acquisition-related below market lease liabilities, net 25,648 31,733  
Deferred Leasing Costs and Acquisition-Related Intangible Assets [Member]      
Intangible assets and below market lease liabilities, net [Abstract]      
Deferred leasing costs, net/Total scheduled future amortization of intangible assets 178,360    
Amortization of intangible assets and below market lease liabilities      
Amortization of intangible assets 36,486 41,187 $ 44,968
Lease Incentives [Member]      
Intangible assets and below market lease liabilities, net [Abstract]      
Deferred leasing costs, net/Total scheduled future amortization of intangible assets 11,127    
Amortization of intangible assets and below market lease liabilities      
Amortization of intangible assets 1,908 1,765 1,779
Acquisition-Related Intangible Assets (in Rental and Other Revenue) [Member]      
Intangible assets and below market lease liabilities, net [Abstract]      
Deferred leasing costs, net/Total scheduled future amortization of intangible assets 4,719    
Amortization of intangible assets and below market lease liabilities      
Amortization of intangible assets 1,677 2,921 3,851
Acquisition-Related Intangible Assets (in Rental Property and Other Expenses) [Member]      
Intangible assets and below market lease liabilities, net [Abstract]      
Deferred leasing costs, net/Total scheduled future amortization of intangible assets 1,067    
Amortization of intangible assets and below market lease liabilities      
Amortization of intangible assets 557 557 557
Acquisition-Related Below Market Lease Liabilities [Member]      
Intangible assets and below market lease liabilities, net [Abstract]      
Acquisition-related below market lease liabilities, net 25,648    
Amortization of intangible assets and below market lease liabilities      
Amortization of acquisition-related below market lease liabilities $ (6,085) $ (6,415) $ (8,183)
v3.10.0.1
Intangible Assets and Below Market Lease Liabilities - Scheduled Future Amortization (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Scheduled future amortization of intangible assets [Abstract]    
Deferred leasing costs, net/Total scheduled future amortization of intangible assets $ 195,273 $ 200,679
Scheduled future amortization of below market lease liabilites [Abstract]    
Total scheduled future amortization of below market lease liabilities (25,648) $ (31,733)
Deferred Leasing Costs and Acquisition-Related Intangible Assets [Member]    
Scheduled future amortization of intangible assets [Abstract]    
2019 35,862  
2020 31,285  
2021 26,702  
2022 22,392  
2023 18,972  
Thereafter 43,147  
Deferred leasing costs, net/Total scheduled future amortization of intangible assets $ 178,360  
Weighted average remaining amortization periods for intangible assets and liabilities [Abstract]    
Intangible assets, weighted average useful life (in years) 7 years 3 months 20 days  
Lease Incentives [Member]    
Scheduled future amortization of intangible assets [Abstract]    
2019 $ 1,730  
2020 1,445  
2021 1,205  
2022 982  
2023 914  
Thereafter 4,851  
Deferred leasing costs, net/Total scheduled future amortization of intangible assets $ 11,127  
Weighted average remaining amortization periods for intangible assets and liabilities [Abstract]    
Intangible assets, weighted average useful life (in years) 10 years 1 month 10 days  
Acquisition-Related Intangible Assets (in Rental and Other Revenue) [Member]    
Scheduled future amortization of intangible assets [Abstract]    
2019 $ 1,261  
2020 957  
2021 631  
2022 462  
2023 308  
Thereafter 1,100  
Deferred leasing costs, net/Total scheduled future amortization of intangible assets $ 4,719  
Weighted average remaining amortization periods for intangible assets and liabilities [Abstract]    
Intangible assets, weighted average useful life (in years) 6 years 6 months  
Acquisition-Related Intangible Assets (in Rental Property and Other Expenses) [Member]    
Scheduled future amortization of intangible assets [Abstract]    
2019 $ 553  
2020 514  
2021 0  
2022 0  
2023 0  
Thereafter 0  
Deferred leasing costs, net/Total scheduled future amortization of intangible assets $ 1,067  
Weighted average remaining amortization periods for intangible assets and liabilities [Abstract]    
Intangible assets, weighted average useful life (in years) 2 years  
Acquisition-Related Below Market Lease Liabilities [Member]    
Scheduled future amortization of below market lease liabilites [Abstract]    
2019 $ (5,405)  
2020 (5,135)  
2021 (4,331)  
2022 (3,258)  
2023 (2,878)  
Thereafter (4,641)  
Total scheduled future amortization of below market lease liabilities $ (25,648)  
Weighted average remaining amortization periods for intangible assets and liabilities [Abstract]    
Below market lease liabilities, weighted average useful life (in years) 5 years 11 months  
v3.10.0.1
Mortgages and Notes Payable (Details)
12 Months Ended
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
extension
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Jan. 25, 2019
USD ($)
Debt Instrument [Line Items]          
Mortgages and notes payable, net $ 2,085,831,000 $ 2,014,333,000      
Less-unamortized debt issuance costs (9,164,000) (8,161,000)      
Scheduled future principal payments [Abstract]          
2019 367,000        
2020 225,444,000        
2021 300,757,000        
2022 583,038,000        
2023 251,376,000        
Thereafter 734,013,000        
Less-unamortized debt issuance costs (9,164,000) (8,161,000)      
Mortgages and notes payable, net 2,085,831,000 2,014,333,000      
Annual repayments through principal amortization 1,800,000        
Gains/(losses) on debt extinguishment $ 0 (26,000) $ 0    
Lender covenant compliance to accelerate outstanding borrowings 51.00%        
Cross-default minimum threshold $ 30,000,000        
Holders covenant compliance of bonds 25.00%        
Uncured covenant compliance default period 60 days        
Capitalized Interest [Abstract]          
Capitalized Interest $ 6,700,000 8,800,000 8,200,000    
4.0% Mortgage Loan Due 2029 [Member]          
Scheduled future principal payments [Abstract]          
Principal amount of debt   $ 100,000,000      
Scheduled maturity date   May 01, 2029      
Current interest rate (in hundredths)   4.00%      
Debt issuance costs   $ 800,000      
5.85% (5.88% effective rate) Notes due 2017 [Member]          
Scheduled future principal payments [Abstract]          
Principal amount of debt   $ 379,700,000.0      
Current interest rate (in hundredths)   5.85%      
7.50% Notes due 2018 [Member]          
Scheduled future principal payments [Abstract]          
Principal amount of debt $ 200,000,000        
Current interest rate (in hundredths) 7.50%        
3.875% (4.038% effective rate) Notes due 2027 [Member]          
Scheduled future principal payments [Abstract]          
Principal amount of debt   $ 300,000,000      
Scheduled maturity date   Mar. 01, 2027      
Current interest rate (in hundredths)   4.038%      
Original issuance discount   $ 4,000,000      
Stated interest rate (in hundredths)   3.875%      
Debt issuance costs   $ 2,500,000      
4.125% (4.271% effective rate) Notes due 2028 [Member]          
Scheduled future principal payments [Abstract]          
Principal amount of debt $ 350,000,000        
Scheduled maturity date Mar. 15, 2028        
Current interest rate (in hundredths) 4.271%        
Original issuance discount $ 4,100,000        
Stated interest rate (in hundredths) 4.125%        
Debt issuance costs $ 2,900,000        
Variable Rate Term Loan due 2020 [Member]          
Scheduled future principal payments [Abstract]          
Early repayment of debt   125,000,000      
Principal amount of debt       $ 350,000,000  
Scheduled maturity date       Jun. 01, 2020  
Interest rate, basis spread       1.10%  
Debt issuance costs       $ 1,300,000  
Gains/(losses) on debt extinguishment   (400,000)      
Variable Rate Term Loan due 2020 [Member] | London Interbank Offered Rate (LIBOR) [Member]          
Scheduled future principal payments [Abstract]          
Interest rate basis       LIBOR plus 110 basis points  
Variable Rate Term Loan due 2022 [Member]          
Scheduled future principal payments [Abstract]          
Principal amount of debt   200,000,000 $ 150,000,000    
Scheduled maturity date     Jan. 01, 2022    
Interest rate, basis spread     1.10%    
Debt issuance costs   300,000      
Variable Rate Term Loan due 2022 [Member] | London Interbank Offered Rate (LIBOR) [Member]          
Scheduled future principal payments [Abstract]          
Interest rate basis     LIBOR plus 110 basis points    
Variable Rate Term Loan (2) due 2022 [Member]          
Scheduled future principal payments [Abstract]          
Principal amount of debt   $ 200,000,000      
Term of debt instrument (in years)   5 years      
Scheduled maturity date   Nov. 01, 2022      
Interest rate basis   LIBOR plus 110 basis points      
Interest rate, basis spread   1.10%      
Debt issuance costs   $ 1,100,000      
Gains/(losses) on debt extinguishment   $ (400,000)      
Variable Rate Term Loan (1) due 2019 [Member]          
Scheduled future principal payments [Abstract]          
Scheduled maturity date   Jan. 01, 2019      
Interest rate basis   LIBOR plus 120 basis points      
Interest rate, basis spread   1.20%      
Revolving Credit Facility due 2022 [Member]          
Scheduled future principal payments [Abstract]          
Maximum borrowing capacity on revolving credit facility   $ 600,000,000 $ 475,000,000    
Maturity date on revolving credit facility   Jan. 01, 2022      
Additional borrowing capacity on revolving credit facility   $ 400,000,000      
Number of additional maturity extensions | extension   2      
Term of optional extensions   6 months      
Annual facility fee (in hundredths)   0.20%      
Amount outstanding on revolving credit facility 182,000,000        
Outstanding letters of credit on revolving credit facility 200,000        
Unused borrowing capacity on revolving credit facility 417,800,000        
Interest rate, basis spread   1.00%      
Debt issuance costs   $ 3,500,000      
Gains/(losses) on debt extinguishment   $ (100,000)      
Revolving Credit Facility due 2022 [Member] | London Interbank Offered Rate (LIBOR) [Member]          
Scheduled future principal payments [Abstract]          
Interest rate   LIBOR plus 100 basis points      
Variable Rate Term Loan (2) due 2019 [Member]          
Scheduled future principal payments [Abstract]          
Principal amount of debt       $ 225,000,000  
Term of debt instrument (in years)       7 years  
Scheduled maturity date       Jan. 01, 2019  
Interest rate, basis spread       1.75%  
Variable Rate Term Loan (2) due 2019 [Member] | London Interbank Offered Rate (LIBOR) [Member]          
Scheduled future principal payments [Abstract]          
Interest rate basis       LIBOR plus 175 basis points  
5.10%(4.22% effective rate) Mortgage Loan due 2017 [Member]          
Scheduled future principal payments [Abstract]          
Early repayment of debt   $ 108,200,000      
Current interest rate (in hundredths)   4.22%      
Gains/(losses) on debt extinguishment   $ 400,000      
6.11% (5.36% effective rate) Mortgage Loan due 2017 (Note A) [Member]          
Scheduled future principal payments [Abstract]          
Early repayment of debt   18,000,000      
Principal amount of debt       $ 18,000,000  
Scheduled maturity date       Jul. 06, 2017  
Current interest rate (in hundredths)       5.36%  
Percentage of partner's interest in asset acquired (in hundredths)       77.20%  
6.11% (8.60% effective rate) Mortgage Loan due 2017 (Note B) [Member]          
Scheduled future principal payments [Abstract]          
Early repayment of debt   500,000      
Principal amount of debt       $ 10,200,000.0  
Scheduled maturity date       Jul. 06, 2017  
Current interest rate (in hundredths)       8.60%  
Gains/(losses) on debt extinguishment   400,000      
7.50% Mortgage Loan due 2016 [Member]          
Scheduled future principal payments [Abstract]          
Early repayment of debt     $ 43,600,000    
Scheduled maturity date     Aug. 01, 2016    
Current interest rate (in hundredths)     7.50%    
Bridge Credit Facility due 2016 [Member]          
Scheduled future principal payments [Abstract]          
Maximum borrowing capacity on revolving credit facility       $ 350,000,000  
Amount outstanding on revolving credit facility        
Term of debt instrument (in years)       6 months  
Interest rate, basis spread       1.10%  
Bridge Credit Facility due 2016 [Member] | London Interbank Offered Rate (LIBOR) [Member]          
Scheduled future principal payments [Abstract]          
Interest rate       LIBOR plus 110 basis points  
Secured indebtedness [Member]          
Debt Instrument [Line Items]          
Mortgages and notes payable, net 97,179,000 98,981,000      
Scheduled future principal payments [Abstract]          
Mortgages and notes payable, net 97,179,000 98,981,000      
Aggregate undepreciated book value of secured real estate assets 147,600,000        
Secured indebtedness [Member] | 4.0% Mortgage Loan Due 2029 [Member]          
Debt Instrument [Line Items]          
Mortgages and notes payable, net 97,179,000 98,981,000      
Scheduled future principal payments [Abstract]          
Mortgages and notes payable, net 97,179,000 98,981,000      
Unsecured indebtedness [Member]          
Debt Instrument [Line Items]          
Mortgages and notes payable, net 1,997,816,000 1,923,513,000      
Scheduled future principal payments [Abstract]          
Mortgages and notes payable, net 1,997,816,000 1,923,513,000      
Unsecured indebtedness [Member] | 7.50% Notes due 2018 [Member]          
Debt Instrument [Line Items]          
Mortgages and notes payable, net 0 200,000,000      
Scheduled future principal payments [Abstract]          
Mortgages and notes payable, net 0 200,000,000      
Unsecured indebtedness [Member] | 3.20% (3.363% effective rate) Notes due 2021 [Member]          
Debt Instrument [Line Items]          
Mortgages and notes payable, net 298,936,000 298,504,000      
Scheduled future principal payments [Abstract]          
Mortgages and notes payable, net 298,936,000 298,504,000      
Unamortized discount 1,100,000 1,500,000      
Unsecured indebtedness [Member] | 3.625% (3.752% effective rate) Notes due 2023 [Member]          
Debt Instrument [Line Items]          
Mortgages and notes payable, net 248,938,000 248,675,000      
Scheduled future principal payments [Abstract]          
Mortgages and notes payable, net 248,938,000 248,675,000      
Unamortized discount 1,100,000 1,300,000      
Unsecured indebtedness [Member] | 3.875% (4.038% effective rate) Notes due 2027 [Member]          
Debt Instrument [Line Items]          
Mortgages and notes payable, net 296,734,000 296,334,000      
Scheduled future principal payments [Abstract]          
Mortgages and notes payable, net 296,734,000 296,334,000      
Unamortized discount 3,300,000 3,700,000      
Unsecured indebtedness [Member] | 4.125% (4.271% effective rate) Notes due 2028 [Member]          
Debt Instrument [Line Items]          
Mortgages and notes payable, net 346,208,000 0      
Scheduled future principal payments [Abstract]          
Mortgages and notes payable, net 346,208,000 0      
Unamortized discount 3,800,000        
Unsecured indebtedness [Member] | Variable Rate Term Loan (4) due 2018 [Member]          
Debt Instrument [Line Items]          
Mortgages and notes payable, net 0 10,000,000      
Scheduled future principal payments [Abstract]          
Mortgages and notes payable, net 0 10,000,000      
Unsecured indebtedness [Member] | Variable Rate Term Loan due 2020 [Member]          
Debt Instrument [Line Items]          
Mortgages and notes payable, net 225,000,000 225,000,000      
Scheduled future principal payments [Abstract]          
Mortgages and notes payable, net $ 225,000,000 225,000,000      
Interest rate under derivative instruments (in hundredths) 2.78%        
Unsecured indebtedness [Member] | Variable Rate Term Loan due 2022 [Member]          
Debt Instrument [Line Items]          
Mortgages and notes payable, net $ 200,000,000 200,000,000      
Scheduled future principal payments [Abstract]          
Mortgages and notes payable, net $ 200,000,000 200,000,000      
Interest rate under derivative instruments (in hundredths) 2.79%        
Current interest rate (in hundredths) 3.45%        
Unsecured indebtedness [Member] | Variable Rate Term Loan (2) due 2022 [Member]          
Debt Instrument [Line Items]          
Mortgages and notes payable, net $ 200,000,000        
Scheduled future principal payments [Abstract]          
Mortgages and notes payable, net $ 200,000,000        
Current interest rate (in hundredths) 3.61%        
Unsecured indebtedness [Member] | Variable Rate Term Loan (1) due 2019 [Member]          
Debt Instrument [Line Items]          
Mortgages and notes payable, net   200,000,000      
Scheduled future principal payments [Abstract]          
Mortgages and notes payable, net   200,000,000      
Unsecured indebtedness [Member] | Revolving Credit Facility due 2022 [Member]          
Debt Instrument [Line Items]          
Mortgages and notes payable, net $ 182,000,000 245,000,000      
Scheduled future principal payments [Abstract]          
Mortgages and notes payable, net $ 182,000,000 $ 245,000,000      
Current interest rate (in hundredths) 3.46%        
Subsequent Event [Member] | Revolving Credit Facility due 2022 [Member]          
Scheduled future principal payments [Abstract]          
Amount outstanding on revolving credit facility         $ 191,000,000
Outstanding letters of credit on revolving credit facility         200,000
Unused borrowing capacity on revolving credit facility         $ 408,800,000
v3.10.0.1
Derivative Financial Instruments (Details) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Derivatives, Fair Value [Line Items]      
Gain on forward starting interest rate swaps $ 4,161,000 $ 1,732,000 $ 5,703,000
Expected decrease to interest expense 1,600,000    
Derivatives designated as cash flow hedges in prepaid expenses and other assets [Abstract]      
Interest rate swaps 1,146,000 1,286,000  
Derivatives designated as cash flow hedges in accounts payable, accrued expenses and other liabilities [Abstract]      
Interest rate swaps 3,581,000 0  
Amount of unrealized gains recognized in accumulated other comprehensive income/(loss) on derivatives (effective portion) [Abstract]      
Interest rate swaps 4,161,000 1,732,000 5,703,000
Amount of (gains)/losses reclassified out of accumulated other comprehensive income/(loss) into contractual interest expense (effective portion) [Abstract]      
Interest rate swaps (2,086,000) 1,157,000 3,057,000
Forward Starting Swaps [Member]      
Derivatives, Fair Value [Line Items]      
Amount of borrowings outstanding, subject to swaps $ 225,000,000.0 $ 150,000,000 $ 150,000,000
Underlying treasury rate term (in years) 10 years 10 years 10 years
Weighted average interest rate under derivative instruments (in hundredths) 2.86% 2.44% 1.90%
Gain on forward starting interest rate swaps $ 7,000,000 $ 7,300,000  
Gain on hedge ineffectiveness in interest expense 200,000    
Amount of unrealized gains recognized in accumulated other comprehensive income/(loss) on derivatives (effective portion) [Abstract]      
Interest rate swaps 7,000,000 7,300,000  
Floating to Fixed Interest Rate Swaps (2017) [Member]      
Derivatives, Fair Value [Line Items]      
Amount of borrowings outstanding, subject to swaps   $ 50,000,000  
Underlying treasury rate term (in years)   1 month  
Derivative maturity date   Jan. 31, 2022  
Floating to Fixed Interest Rate Swaps [Member]      
Derivatives, Fair Value [Line Items]      
Amount of borrowings outstanding, subject to swaps $ 225,000,000    
Derivative maturity date Jan. 11, 2019    
Weighted average interest rate under derivative instruments (in hundredths) 1.678%    
4.125% (4.271% effective rate) Notes due 2028 [Member]      
Derivatives, Fair Value [Line Items]      
Principal amount of debt $ 350,000,000    
Stated interest rate (in hundredths) 4.125%    
3.875% (4.038% effective rate) Notes due 2027 [Member]      
Derivatives, Fair Value [Line Items]      
Principal amount of debt   $ 300,000,000  
Stated interest rate (in hundredths)   3.875%  
London Interbank Offered Rate (LIBOR) [Member] | Floating to Fixed Interest Rate Swaps (2017) [Member]      
Derivatives, Fair Value [Line Items]      
Weighted average interest rate under derivative instruments (in hundredths)   1.693%  
v3.10.0.1
Commitments and Contingencies (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Operating ground leases [Abstract]      
Rental property expense $ 2,500 $ 2,500 $ 2,900
Operating ground leases, scheduled future minimum payments [Abstract]      
Operating leases, future minimum payments, 2019 2,184    
Operating leases, future minimum payments, 2020 2,223    
Operating leases, future minimum payments, 2021 2,263    
Operating leases, future minimum payments, 2022 2,305    
Operating leases, future minimum payments, 2023 2,308    
Operating leases, future minimum payments, thereafter 86,577    
Operating leases, total future minimum payments due 97,860    
Lease and Contractual Commitments [Abstract]      
Lease and contractual commitments 484,800    
Accrued amount of lease and contractual commitments 60,400    
Contingent Consideration [Abstract]      
Asset acquisition, contingent consideration liability 0 750 $ 0
Asset Acquisition Contingent Consideration [Member]      
Contingent Consideration [Abstract]      
Asset acquisition, contingent consideration liability $ 5,000 $ 5,000  
v3.10.0.1
Noncontrolling Interests (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Noncontrolling Interests in Consolidated Affiliates                      
Consolidated joint venture, partner's interest (in hundredths) 50.00%               50.00%    
Noncontrolling Interests in the Operating Partnership [Roll Forward]                      
Noncontrolling interests in the Operating Partnership, beginning balance       $ 144,009         $ 144,009    
Adjustment of noncontrolling interests in the Operating Partnership to fair value                 (33,427) $ (354) $ 12,993
Conversions of Common Units to Common Stock                 (4,043) (511) (3,057)
Net income attributable to noncontrolling interests in the Operating Partnership $ 1,417 $ 902 $ 1,381 888 $ 1,557 $ 1,571 $ 1,043 $ 888 4,588 5,059 15,596
Distributions to noncontrolling interests in the Operating Partnership                 (5,167) (4,987) (4,888)
Noncontrolling interests in the Operating Partnership, ending balance 105,960       144,009       105,960 144,009  
Net Income Available for Common Stockholders and Transfers From Noncontrolling Interests in the Operating Partnership                      
Net income available for common stockholders 53,048 $ 33,160 $ 50,686 32,449 56,570 $ 57,040 $ 37,589 31,674 169,343 182,873 521,789
Highwoods Properties, Inc. [Member]                      
Noncontrolling Interests in the Operating Partnership [Roll Forward]                      
Noncontrolling interests in the Operating Partnership, beginning balance       $ 144,009       $ 144,802 144,009 144,802  
Adjustment of noncontrolling interests in the Operating Partnership to fair value                 (33,427) (354)  
Conversions of Common Units to Common Stock                 (4,043) (511)  
Net income attributable to noncontrolling interests in the Operating Partnership                 4,588 5,059  
Distributions to noncontrolling interests in the Operating Partnership                 (5,167) (4,987)  
Noncontrolling interests in the Operating Partnership, ending balance $ 105,960       $ 144,009       105,960 144,009 144,802
Net Income Available for Common Stockholders and Transfers From Noncontrolling Interests in the Operating Partnership                      
Net income available for common stockholders                 169,343 182,873 521,789
Increase in additional paid in capital from conversions of Common Units to Common Stock                 4,043 511 3,057
Change from net income available for common stockholders and transfers from noncontrolling interests                 $ 173,386 $ 183,384 $ 524,846
v3.10.0.1
Disclosure About Fair Value of Financial Instruments - Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Dec. 31, 2016
Dec. 31, 2015
Assets:          
Mortgages and notes receivable, at fair value $ 5,599 $ 6,425      
Interest rate swaps (in prepaid expenses and other assets) 1,146 1,286      
Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets) 1,849 2,388   $ 2,451  
Impaired real estate assets 10,252        
Total Assets 18,846 10,099      
Liabilities:          
Mortgages and notes payable, net, at fair value 2,056,248 2,015,689      
Interest rate swaps (in accounts payable, accrued expenses and other liabilities) 3,581        
Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities) 1,849 2,388   $ 2,451 $ 2,736
Total Liabilities 2,061,678 2,018,077      
Level 1 [Member]          
Assets:          
Mortgages and notes receivable, at fair value 0 0      
Interest rate swaps (in prepaid expenses and other assets) 0 0      
Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets) 1,849 2,388      
Impaired real estate assets 0        
Total Assets 1,849 2,388      
Liabilities:          
Mortgages and notes payable, net, at fair value 0 0      
Interest rate swaps (in accounts payable, accrued expenses and other liabilities) 0        
Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities) 1,849 2,388      
Total Liabilities 1,849 2,388      
Level 2 [Member]          
Assets:          
Mortgages and notes receivable, at fair value 5,599 6,425      
Interest rate swaps (in prepaid expenses and other assets) 1,146 1,286      
Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets) 0 0      
Impaired real estate assets 0        
Total Assets 6,745 7,711      
Liabilities:          
Mortgages and notes payable, net, at fair value 2,056,248 2,015,689      
Interest rate swaps (in accounts payable, accrued expenses and other liabilities) 3,581        
Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities) 0 0      
Total Liabilities 2,059,829 2,015,689      
Level 3 [Member]          
Assets:          
Mortgages and notes receivable, at fair value 0 0      
Interest rate swaps (in prepaid expenses and other assets) 0 0      
Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets) 0 0      
Impaired real estate assets 10,252   $ 5,900    
Total Assets 10,252 0      
Liabilities:          
Mortgages and notes payable, net, at fair value 0 0      
Interest rate swaps (in accounts payable, accrued expenses and other liabilities) 0        
Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities) 0 0      
Total Liabilities 0 0      
Highwoods Properties, Inc. [Member]          
Assets:          
Noncontrolling Interests in the Operating Partnership 105,960 144,009      
Highwoods Properties, Inc. [Member] | Level 1 [Member]          
Assets:          
Noncontrolling Interests in the Operating Partnership 105,960 144,009      
Highwoods Properties, Inc. [Member] | Level 2 [Member]          
Assets:          
Noncontrolling Interests in the Operating Partnership 0 0      
Highwoods Properties, Inc. [Member] | Level 3 [Member]          
Assets:          
Noncontrolling Interests in the Operating Partnership $ 0 $ 0      
v3.10.0.1
Equity (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2016
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Class of Stock [Line Items]        
Net proceeds of Common Stock sold during the period   $ 1,865 $ 70,977 $ 256,380
Number of trading days preceeding Redemption Notice Date (in days)   10 days    
Future distribution of Common Stock (in dollars per share)   $ 0.06    
Dividends, Common Stock [Abstract]        
Ordinary income   1.48 $ 1.50 $ 1.15
Capital gains   0.31 0.32 1.29
Return of capital   0.06 0.00 0.00
Total taxability of dividends per share   $ 1.85 $ 1.82 2.44
Dividends, Preferred Stock [Abstract]        
Number of shares outstanding, Preferred Stock (in shares)   28,877 28,892  
Carrying value, Preferred Stock   $ 28,877 $ 28,892  
Liquidation preference per share, Preferred Stock (in dollars per share)   $ 1,000 $ 1,000  
Warrants [Abstract]        
Warrants to acquire Common Stock/Units, outstanding   15,000 15,000  
Exercise price of outstanding warrants (in dollars per share)   $ 32.50 $ 32.50  
Series A Cumulative Redeemable Preferred Shares [Member]        
Dividends, Preferred Stock [Abstract]        
Ordinary income   71.22 71.00 40.65
Capital gains   15.03 15.25 45.60
Total taxability of dividends per share   $ 86.25 $ 86.25 86.25
Issuance date, Preferred Stock/Unit   Feb. 12, 1997 Feb. 12, 1997  
Liquidation preference per share, Preferred Stock (in dollars per share)   $ 1,000 $ 1,000  
Optional redemption date, Preferred Stock/Unit   Feb. 12, 2027 Feb. 12, 2027  
Annual dividends payable per share, Preferred Stock/Unit (in dollars per share)   $ 86.25 $ 86.25 86.25
Highwoods Properties, Inc. [Member]        
Class of Stock [Line Items]        
Possible future share issuance authorized under charter   96,400,000    
Dividends declared per share of Common Stock (in dollars per share)   $ 1.85 $ 1.76 1.70
Highwoods Properties, Inc. [Member] | ATM Equity Offering [Member]        
Class of Stock [Line Items]        
Number of Common Stock sold during the period (in shares)     1,363,919  
Net proceeds of Common Stock sold during the period     $ 68,300  
Highwoods Properties, Inc. [Member] | Series A Cumulative Redeemable Preferred Shares [Member]        
Dividends, Preferred Stock [Abstract]        
Total taxability of dividends per share   86.25 $ 86.25 86.25
Annual dividends payable per share, Preferred Stock/Unit (in dollars per share)   86.25 86.25 86.25
Highwoods Properties, Inc. [Member] | Special Dividend [Member]        
Class of Stock [Line Items]        
Dividends declared per share of Common Stock (in dollars per share) $ 0.80     2.50
Highwoods Realty Limited Partnership [Member]        
Class of Stock [Line Items]        
Distributions declared per share of Common Unit (in dollars per share)   $ 1.85 $ 1.76 1.70
Dividends, Preferred Stock [Abstract]        
Number of units outstanding, Preferred Units (in shares)   28,877 28,892  
Carrying value, Preferred units   $ 28,877 $ 28,892  
Liquidation preference per unit, Preferred Units (in dollars per share)   $ 1,000 $ 1,000  
Highwoods Realty Limited Partnership [Member] | Series A Cumulative Redeemable Preferred Shares [Member]        
Dividends, Preferred Stock [Abstract]        
Total taxability of dividends per share   $ 86.25 $ 86.25 86.25
Issuance date, Preferred Stock/Unit   Feb. 12, 1997 Feb. 12, 1997  
Liquidation preference per unit, Preferred Units (in dollars per share)   $ 1,000 $ 1,000  
Optional redemption date, Preferred Stock/Unit   Feb. 12, 2027 Feb. 12, 2027  
Annual dividends payable per share, Preferred Stock/Unit (in dollars per share)   $ 86.25 $ 86.25 86.25
Highwoods Realty Limited Partnership [Member] | Special Dividend [Member]        
Class of Stock [Line Items]        
Distributions declared per share of Common Unit (in dollars per share) $ 0.80     $ 2.50
v3.10.0.1
Employee Benefit Plans (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Retirement Benefits [Abstract]      
Officer cash bonus target minimum 35.00%    
Officer cash bonus target maximum 135.00%    
Officer cash bonus performance factor minimum 0.00%    
Officer cash bonus performance factor maximum 200.00%    
Other management cash bonus target minimum 6.00%    
Other management cash bonus target maximum 30.00%    
Outstanding stock options and warrants 611,518 655,822  
Possible future share issuance authorized under equity incentive plans 2,188,696 2,404,131  
Total shares reserved for future issuance 2,800,214 3,059,953  
Possible future share issuance authorized under equity incentive plan restricted stock 600,000    
Stock-based compensation expense $ 7,466 $ 6,692 $ 6,251
Total unrecognized stock-based compensation costs $ 4,700    
Weighted average remaining term of vesting periods (in years) 2 years 2 months 20 days    
401(k) Savings Plan [Abstract]      
401(k) employer match percentage 75.00%    
401(k) employer match salary limit percentage 6.00%    
401(k) employer contribution $ 1,400 1,400 1,300
Retirement Plan [Abstract]      
Retirement plan qualification years of service (in years) 30 years    
Retirement plan qualification age 55 years    
Retirement plan qualification minimum years of service (in years) 10 years    
Retirement plan immediate vesting percentage 100.00%    
Deferred Compensation [Abstract]      
Marketable securities of non-qualified deferred compensation plan fair value disclosure $ 1,849 2,388 2,451
Non Qualified Deferred Compensation Obligation Fair Value Disclosure [Roll Forward]      
Beginning deferred compensation liability 2,388 2,451 2,736
Mark to market adjustment to deferred compensation (in general and administrative expenses) (182) 492 222
Distributions from deferred compensation plans (357) (555) (507)
Ending deferred compensation liability $ 1,849 $ 2,388 $ 2,451
Employee Stock Purchase Plan [Abstract]      
Employee stock purchase plan salary limit percentage 25.00%    
Employee stock purchase plan market percentage 85.00%    
Number of days at end of quarter used to calculate ESPP discount 5 days    
Shares of Common Stock issued under the employee stock purchase plans 38,951 33,278 27,773
Discount percentage on newly issues shares 15.00%    
Discount on newly issued shares expensed as additional compensation $ 300 $ 200 $ 200
2015 Plan [Member]      
Restricted Stock Activity Rollforward [Abstract]      
Awarded and issued (in shares)    
Vested (in shares)    
Forfeited (in shares) (13,707)    
2014 Plan [Member]      
Restricted Stock Activity Rollforward [Abstract]      
Awarded and issued (in shares)   34,669  
Vested (in shares)   (34,669)  
2013 Plan [Member]      
Restricted Stock Activity Rollforward [Abstract]      
Awarded and issued (in shares)     6,647
Vested (in shares)     (6,647)
Stock Options [Member]      
Stock Option Activity Rollforward [Abstract]      
Balance of options outstanding (in shares) 640,822 587,115 687,228
Options granted (in shares) 168,748 244,664
Options canceled (in shares) (14,743)
Options exercised (in shares) (44,304) (115,041) (330,034)
Balance of options outstanding (in shares) 596,518 640,822 587,115
Stock Option Activity, Weighted Average Exercise Price Rollforward [Abstract]      
Options outstanding, weighted average exercise price (in dollars per share) $ 45.29 $ 42.26 $ 37.97
Options granted, weighted average exercise price (in dollars per share) 52.49 43.55
Options canceled, weighted average exercise price (in dollars per share) 42.64
Options exercised, weighted average exercise price (in dollars per share) 40.15 40.41 34.26
Options outstanding, weighted average exercise price (in dollars per share) $ 45.67 $ 45.29 $ 42.26
Weighted average remaining life of outstanding options (in years) 6 years 9 months 20 days    
Options exercisable (in shares) 303,674    
Weighted average exercise price (in dollars per share) $ 43.67    
Weighted average remaining life (in years) 6 years 2 months 12 days    
Intrinsic value $ 100    
Amount of exercisable options with prices higher than the market price of Company Common Stock 217,386    
Cash received or receivable from options exercised $ 1,900 $ 5,200 $ 13,400
Total instrinsic value of options exercised 400 1,300 4,800
Total intrinsic value of options outstanding $ 100 $ 3,900 $ 5,100
Prior to 2005 and after 2013 Stock Options [Member]      
Retirement Benefits [Abstract]      
Vesting term of stock options issued/Period for absolute total return of restricted stock issued (in years) 4 years    
Option expiration period (in years) 10 years    
Grant date fair value of each stock option granted (in dollars per option)    
Assumptions Used in Determining Fair Values of Options/Restricted Stock Granted:      
Risk free interest rate    
Common stock dividend yield    
Expected volatility rate    
Average expected option life (in years)    
Dividends paid for previous year 1 year    
2005 to 2013 Stock Options [Member]      
Retirement Benefits [Abstract]      
Vesting term of stock options issued/Period for absolute total return of restricted stock issued (in years) 4 years    
Option expiration period (in years) 7 years    
Grant date fair value of each stock option granted (in dollars per option)   $ 6.72 $ 4.61
Assumptions Used in Determining Fair Values of Options/Restricted Stock Granted:      
Risk free interest rate   2.00% 1.40%
Common stock dividend yield   3.40% 3.90%
Expected volatility rate   19.50% 19.70%
Average expected option life (in years)   5 years 9 months 5 years 9 months
Time-Based Restricted Stock [Member]      
Retirement Benefits [Abstract]      
Vesting term of stock options issued/Period for absolute total return of restricted stock issued (in years) 4 years    
Restricted Stock Activity Rollforward [Abstract]      
Balance of restricted stock outstanding (in shares) 172,246 188,981 204,720
Awarded and issued (in shares) 94,984 61,404 72,698
Vested (in shares) (73,307) (78,139) (84,212)
Forfeited (in shares) (2,684) (4,225)
Balance of restricted stock outstanding (in shares) 191,239 172,246 188,981
Restricted Stock Activity, Weighted Average Grant Date Fair Value Rollforward [Abstract]      
Restricted stock outstanding, weighted average grant date fair value (in dollars per share) $ 46.46 $ 42.06 $ 39.74
Awarded and issued, weighted average grant date fair value (in dollars per share) 43.01 52.49 43.59
Vested, weighted average grant date fair value (in dollars per share) 44.19 40.55 37.76
Forfeited, weighted average grant date fair value (in dollars per share) 45.89 41.96
Restricted stock outstanding, weighted average grant date fair value (in dollars per share) 45.62 46.46 42.06
Grant date fair value of restricted stock (in dollars per share) $ 43.01 $ 52.49 $ 43.59
Fair value at grant date of restricted stock issued $ 4,100 $ 3,200 $ 3,200
Vesting date fair value of restricted stock $ 3,200 $ 4,100 $ 3,700
Total Return-Based Restricted Stock [Member]      
Retirement Benefits [Abstract]      
Vesting term of stock options issued/Period for absolute total return of restricted stock issued (in years) 3 years    
Assumptions Used in Determining Fair Values of Options/Restricted Stock Granted:      
Risk free interest rate 2.30% 1.60% 0.90%
Common stock dividend yield 3.90% 3.50% 4.10%
Expected volatility rate 41.10% 42.80% 43.10%
Dividends paid for previous year 1 year    
Restricted Stock Activity Rollforward [Abstract]      
Balance of restricted stock outstanding (in shares) 160,724 183,724 195,303
Awarded and issued (in shares) 77,456 84,013 64,701
Vested (in shares) (41,160) (107,013) (71,617)
Forfeited (in shares) (16,926) (4,663)
Balance of restricted stock outstanding (in shares) 180,094 160,724 183,724
Restricted Stock Activity, Weighted Average Grant Date Fair Value Rollforward [Abstract]      
Restricted stock outstanding, weighted average grant date fair value (in dollars per share) $ 44.72 $ 39.82 $ 36.66
Awarded and issued, weighted average grant date fair value (in dollars per share) 40.81 44.76 40.87
Vested, weighted average grant date fair value (in dollars per share) 45.61 37.88 36.50
Forfeited, weighted average grant date fair value (in dollars per share) 45.24 39.91
Restricted stock outstanding, weighted average grant date fair value (in dollars per share) $ 43.34 $ 44.72 $ 39.82
Percentage of return-based restricted stock issued to officers that will vest, minimum 0.00% 0.00% 0.00%
Percentage of return-based restricted stock issued to officers that will vest, maximum 150.00% 150.00% 150.00%
Company total return, total return-based restricted stock 100.00%    
Vesting percentage, total return-based restricted stock 75.00% 75.00% 75.00%
Grant date fair value of restricted stock (in dollars per share) $ 40.81 $ 44.76 $ 40.87
Fair value at grant date of restricted stock issued $ 3,200 $ 2,400 $ 2,400
Vesting date fair value of restricted stock $ 1,800 $ 5,600 $ 3,100
Period preceding date of grant 3 months    
Total Return-Based Restricted Stock Current Year Issuance [Member]      
Restricted Stock Activity, Weighted Average Grant Date Fair Value Rollforward [Abstract]      
Awarded and issued, weighted average grant date fair value (in dollars per share) $ 40.81 $ 49.59 $ 41.37
Grant date fair value of restricted stock (in dollars per share) $ 40.81 $ 49.59 $ 41.37
v3.10.0.1
Accumulated Other Comprehensive Income (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Accumulated Other Comprehensive Income Calculation [Roll Forward]    
Beginning balance $ 7,838  
Ending balance 9,913 $ 7,838
Cash Flow Hedges [Member]    
Accumulated Other Comprehensive Income Calculation [Roll Forward]    
Beginning balance 7,838 4,949
Unrealized gains on cash flow hedges 4,161 1,732
Amortization reclassified out of accumulated other comprehensive income/(loss) $ (2,086) 1,157
Ending balance   $ 7,838
v3.10.0.1
Rental and Other Revenues (Details)
$ in Thousands
Dec. 31, 2018
USD ($)
Future Minimum Base Rents [Abstract]  
2019 $ 618,014
2020 581,399
2021 524,381
2022 488,157
2023 428,461
Thereafter 2,068,891
Total future minimum base rents $ 4,709,303
v3.10.0.1
Real Estate and Other Assets Held For Sale and Discontinued Operations (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Assets, held for sale [Abstract]      
Land $ 0 $ 870  
Building and tenant improvements 0 21,318  
Land held for development 0 355  
Less accumulated depreciation 0 (9,304)  
Net real estate assets 0 13,239  
Accrued straight-line rents receivable, net 0 591  
Deferred leasing costs, net 0 253  
Prepaid expenses and other assets, net 0 35  
Real estate and other assets, net, held for sale 0 14,118  
Discontinued Operations [Abstract]      
Rental and other revenues 0 0 $ 8,484
Operating expenses:      
Rental property and other expenses 0 0 3,334
General and administrative 0 0 1,388
Total operating expenses 0 0 4,722
Interest expense 0 0 85
Other income 0 0 420
Income from discontinued operations 0 0 4,097
Net gains on disposition of discontinued operations 0 0 414,496
Total income from discontinued operations 0 0 418,593
Net Cash Provided by (Used in) Discontinued Operations [Abstract]      
Cash flows from operating activities 0 0 2,040
Cash flows from investing activities $ 0 $ 0 $ 646,738
v3.10.0.1
Earnings Per Share and Per Unit (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Earnings per Common Share/Unit - basic: [Abstract]                      
Income from continuing operations                 $ 177,630 $ 191,663 $ 122,546
Net (income) attributable to noncontrolling interests in the Operating Partnership from continuing operations                 (4,588) (5,059) (3,331)
Net (income) attributable to noncontrolling interests in consolidated affiliates from continuing operations $ (289) $ (324) $ (308) $ (286) $ (325) $ (315) $ (299) $ (300) (1,207) (1,239) (1,253)
Dividends on Preferred Stock (623) (623) (623) (623) (623) (623) (623) (623) (2,492) (2,492) (2,501)
Income from continuing operations available for common stockholders                 169,343 182,873 115,461
Income from discontinued operations                 0 0 418,593
Net (income) attributable to noncontrolling interests in the Operating Partnership from discontinued operations                 0 0 (12,265)
Income from discontinued operations available for common stockholders                 0 0 406,328
Net income available for common stockholders $ 53,048 $ 33,160 $ 50,686 $ 32,449 $ 56,570 $ 57,040 $ 37,589 $ 31,674 $ 169,343 $ 182,873 $ 521,789
Denominator:                      
Denominator for basic earnings per Common Share - weighted average shares (in shares)                 103,439 102,682 98,439
Earnings per Common Share - basic:                      
Income from continuing operations available for common stockholders (in dollars per share)                 $ 1.64 $ 1.78 $ 1.17
Income from discontinued operations available for common stockholders (in dollars per share)                 0.00 0.00 4.13
Net income available for common stockholders (in dollars per share) $ 0.51 $ 0.32 $ 0.49 $ 0.31 $ 0.55 $ 0.55 $ 0.37 $ 0.31 $ 1.64 $ 1.78 $ 5.30
Earnings per Common Share/Unit - diluted: [Abstract]                      
Income from continuing operations                 $ 177,630 $ 191,663 $ 122,546
Net (income) attributable to noncontrolling interests in consolidated affiliates from continuing operations $ (289) $ (324) $ (308) $ (286) $ (325) $ (315) $ (299) $ (300) (1,207) (1,239) (1,253)
Dividends on Preferred Stock $ (623) $ (623) $ (623) $ (623) $ (623) $ (623) $ (623) $ (623) (2,492) (2,492) (2,501)
Income from continuing operations available for common stockholders before net (income) attributable to noncontrolling interests in the Operating Partnership                 173,931 187,932 118,792
Income from discontinued operations                 0 0 418,593
Net income available for common stockholders before net (income) attributable to noncontrolling interests in the Operating Partnership                 $ 173,931 $ 187,932 $ 537,385
Denominator:                      
Denominator for basic earnings per Common Share - weighted average shares (in shares)                 103,439 102,682 98,439
Stock options using the treasury method                 33 79 87
Noncontrolling interests Common Units                 2,796 2,833 2,872
Denominator for diluted earnings per Common Share - adjusted weighted average shares and assumed conversions (in shares)                 106,268 105,594 101,398
Earnings per Common Share - diluted:                      
Income from continuing operations available for common stockholders (in dollars per share)                 $ 1.64 $ 1.78 $ 1.17
Income from discontinued operations available for common stockholders (in dollars per share)                 0.00 0.00 4.13
Net income available for common stockholders (in dollars per share) $ 0.51 $ 0.32 $ 0.49 $ 0.31 $ 0.55 $ 0.55 $ 0.37 $ 0.31 $ 1.64 $ 1.78 $ 5.30
Highwoods Realty Limited Partnership [Member]                      
Earnings per Common Share/Unit - basic: [Abstract]                      
Income from continuing operations                 $ 177,630 $ 191,663 $ 122,546
Net (income) attributable to noncontrolling interests in consolidated affiliates from continuing operations $ (289) $ (324) $ (308) $ (286) $ (325) $ (315) $ (299) $ (300) (1,207) (1,239) (1,253)
Distributions on Preferred Units (623) (623) (623) (623) (623) (623) (623) (623) (2,492) (2,492) (2,501)
Income from continuing operations available for common unitholders                 173,931 187,932 118,792
Income from discontinued operations available for common unitholders                 0 0 418,593
Net income available for common unitholders $ 54,465 $ 34,062 $ 52,067 $ 33,337 $ 58,127 $ 58,611 $ 38,632 $ 32,562 $ 173,931 $ 187,932 $ 537,385
Denominator:                      
Denominator for basic earnings per Common Unit - weighted average units (in shares)                 105,826 105,106 100,902
Earnings per Common Unit - basic:                      
Income from continuing operations available for common unitholders (in dollars per share)                 $ 1.64 $ 1.79 $ 1.18
Income from discontinued operations available for common unitholders (in dollars per share)                 0.00 0.00 4.15
Net income available for common unitholders (in dollars per share) $ 0.51 $ 0.32 $ 0.49 $ 0.32 $ 0.55 $ 0.55 $ 0.37 $ 0.31 $ 1.64 $ 1.79 $ 5.33
Earnings per Common Share/Unit - diluted: [Abstract]                      
Income from continuing operations                 $ 177,630 $ 191,663 $ 122,546
Net (income) attributable to noncontrolling interests in consolidated affiliates from continuing operations $ (289) $ (324) $ (308) $ (286) $ (325) $ (315) $ (299) $ (300) (1,207) (1,239) (1,253)
Distributions on Preferred Units (623) (623) (623) (623) (623) (623) (623) (623) (2,492) (2,492) (2,501)
Income from continuing operations available for common unitholders                 173,931 187,932 118,792
Income from discontinued operations available for common unitholders                 0 0 418,593
Net income available for common unitholders $ 54,465 $ 34,062 $ 52,067 $ 33,337 $ 58,127 $ 58,611 $ 38,632 $ 32,562 $ 173,931 $ 187,932 $ 537,385
Denominator:                      
Denominator for basic earnings per Common Unit - weighted average units (in shares)                 105,826 105,106 100,902
Stock options using the treasury method                 33 79 87
Denominator for diluted earnings per Common Unit - adjusted weighted average units and assumed conversions (in shares)                 105,859 105,185 100,989
Earnings per Common Unit - diluted:                      
Income from continuing operations available for common unitholders (in dollars per share)                 $ 1.64 $ 1.79 $ 1.18
Income from discontinued operations available for common unitholders (in dollars per share)                 0.00 0.00 4.14
Net income available for common unitholders (in dollars per share) $ 0.51 $ 0.32 $ 0.49 $ 0.32 $ 0.55 $ 0.55 $ 0.37 $ 0.31 $ 1.64 $ 1.79 $ 5.32
v3.10.0.1
Income Taxes (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Highwoods Properties, Inc. [Member]      
Income Tax Disclosure [Line Items]      
Minimum dividend required to maintain REIT status (in dollars per share) $ 1.26 $ 1.37 $ 0.99
Tax basis of assets $ 4,300,000 $ 4,100,000  
Tax basis of liabilities 2,300,000 2,300,000  
Increase to tax expense due to Tax Cuts and Jobs Act   100  
Income Tax Expense/(Benefit) [Abstract]      
Current federal tax expense/(benefit) 133 (177) $ (38)
Current state tax expense 112 105 89
Current tax expense/(benefit) 245 (72) 51
Deferred federal tax expense/(benefit) (95) 223 (160)
Deferred state tax expense/(benefit) (68) (9) 87
Deferred tax expense/(benefit) (163) 214 (73)
Total income tax expense/(benefit) 82 142 $ (22)
Net deferred tax liabilities 200 300  
Highwoods Realty Limited Partnership [Member]      
Income Tax Disclosure [Line Items]      
Tax basis of assets 4,200,000 4,100,000  
Tax basis of liabilities $ 2,300,000 $ 2,300,000  
v3.10.0.1
Segment Information (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Segment Reporting Information [Line Items]                      
Rental and other revenues $ 181,388 $ 179,417 $ 178,792 $ 180,438 $ 175,861 $ 180,185 $ 177,283 $ 169,408 $ 720,035 $ 702,737 $ 665,634
Total net operating income                 477,620 465,849 434,549
Reconciliation to income from continuing operations before disposition of investment properties and activity in unconsolidated affiliates:                      
Depreciation and amortization                 (229,955) (227,832) (220,140)
Impairments of real estate assets                 (423) (1,445) 0
General and administrative expenses                 (40,006) (39,648) (38,153)
Interest expense                 (71,422) (69,105) (76,648)
Other income                 1,940 2,283 2,338
Income from continuing operations before disposition of investment properties and activity in unconsolidated affiliates                 137,754 130,102 101,946
Total Assets 4,675,009       4,623,791       4,675,009 4,623,791  
Office Total Segment [Member]                      
Segment Reporting Information [Line Items]                      
Rental and other revenues                 707,158 689,788 651,511
Total net operating income                 468,213 456,628 424,731
Reconciliation to income from continuing operations before disposition of investment properties and activity in unconsolidated affiliates:                      
Total Assets 4,517,153       4,391,387       4,517,153 4,391,387  
Office Atlanta, GA [Member]                      
Segment Reporting Information [Line Items]                      
Rental and other revenues                 141,337 140,323 134,601
Total net operating income                 87,503 89,575 84,733
Reconciliation to income from continuing operations before disposition of investment properties and activity in unconsolidated affiliates:                      
Total Assets 1,047,850       1,049,100       1,047,850 1,049,100  
Office Greensboro, NC [Member]                      
Segment Reporting Information [Line Items]                      
Rental and other revenues                 22,322 21,453 20,522
Total net operating income                 14,275 13,612 12,781
Reconciliation to income from continuing operations before disposition of investment properties and activity in unconsolidated affiliates:                      
Total Assets 118,611       134,194       118,611 134,194  
Office Memphis, TN [Member]                      
Segment Reporting Information [Line Items]                      
Rental and other revenues                 40,230 45,430 48,251
Total net operating income                 25,659 28,128 30,038
Reconciliation to income from continuing operations before disposition of investment properties and activity in unconsolidated affiliates:                      
Total Assets 213,276       218,088       213,276 218,088  
Office Nashville, TN [Member]                      
Segment Reporting Information [Line Items]                      
Rental and other revenues                 121,836 111,506 95,912
Total net operating income                 88,554 81,204 68,678
Reconciliation to income from continuing operations before disposition of investment properties and activity in unconsolidated affiliates:                      
Total Assets 937,732       806,725       937,732 806,725  
Office Orlando, FL [Member]                      
Segment Reporting Information [Line Items]                      
Rental and other revenues                 53,771 51,236 46,260
Total net operating income                 32,841 30,526 26,525
Reconciliation to income from continuing operations before disposition of investment properties and activity in unconsolidated affiliates:                      
Total Assets 306,370       306,970       306,370 306,970  
Office Pittsburgh, PA [Member]                      
Segment Reporting Information [Line Items]                      
Rental and other revenues                 61,177 59,103 58,789
Total net operating income                 36,233 34,784 34,175
Reconciliation to income from continuing operations before disposition of investment properties and activity in unconsolidated affiliates:                      
Total Assets 329,918       334,136       329,918 334,136  
Office Raleigh, NC [Member]                      
Segment Reporting Information [Line Items]                      
Rental and other revenues                 118,352 119,254 112,958
Total net operating income                 86,053 86,475 80,803
Reconciliation to income from continuing operations before disposition of investment properties and activity in unconsolidated affiliates:                      
Total Assets 792,464       762,331       792,464 762,331  
Office Richmond, VA [Member]                      
Segment Reporting Information [Line Items]                      
Rental and other revenues                 45,729 43,959 44,315
Total net operating income                 31,276 29,946 30,505
Reconciliation to income from continuing operations before disposition of investment properties and activity in unconsolidated affiliates:                      
Total Assets 248,669       229,468       248,669 229,468  
Office Tampa, FL [Member]                      
Segment Reporting Information [Line Items]                      
Rental and other revenues                 102,404 97,524 89,903
Total net operating income                 65,819 62,378 56,493
Reconciliation to income from continuing operations before disposition of investment properties and activity in unconsolidated affiliates:                      
Total Assets 522,263       550,375       522,263 550,375  
Other Segment [Member]                      
Segment Reporting Information [Line Items]                      
Rental and other revenues                 12,877 12,949 14,123
Total net operating income                 9,407 9,221 $ 9,818
Reconciliation to income from continuing operations before disposition of investment properties and activity in unconsolidated affiliates:                      
Total Assets $ 157,856       $ 232,404       $ 157,856 $ 232,404  
v3.10.0.1
Quarterly Financial Data (Unaudited) (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Quarterly Financial Data [Line Items]                      
Rental and other revenues $ 181,388 $ 179,417 $ 178,792 $ 180,438 $ 175,861 $ 180,185 $ 177,283 $ 169,408 $ 720,035 $ 702,737 $ 665,634
Net income 55,377 35,009 52,998 34,246 59,075 59,549 39,554 33,485 177,630 191,663 541,139
Net (income) attributable to noncontrolling interests in the Operating Partnership (1,417) (902) (1,381) (888) (1,557) (1,571) (1,043) (888) (4,588) (5,059) (15,596)
Net (income) attributable to noncontrolling interests in consolidated affiliates (289) (324) (308) (286) (325) (315) (299) (300) (1,207) (1,239) (1,253)
Dividends on Preferred Stock (623) (623) (623) (623) (623) (623) (623) (623) (2,492) (2,492) (2,501)
Net income available for common stockholders $ 53,048 $ 33,160 $ 50,686 $ 32,449 $ 56,570 $ 57,040 $ 37,589 $ 31,674 $ 169,343 $ 182,873 $ 521,789
Earnings per Common Share - basic:                      
Net income available for common stockholders (in dollars per share) $ 0.51 $ 0.32 $ 0.49 $ 0.31 $ 0.55 $ 0.55 $ 0.37 $ 0.31 $ 1.64 $ 1.78 $ 5.30
Earnings per Common Share - diluted:                      
Net income available for common stockholders (in dollars per share) $ 0.51 $ 0.32 $ 0.49 $ 0.31 $ 0.55 $ 0.55 $ 0.37 $ 0.31 $ 1.64 $ 1.78 $ 5.30
Highwoods Properties, Inc. [Member]                      
Quarterly Financial Data [Line Items]                      
Net (income) attributable to noncontrolling interests in the Operating Partnership                 $ (4,588) $ (5,059)  
Net income available for common stockholders                 169,343 182,873 $ 521,789
Highwoods Realty Limited Partnership [Member]                      
Quarterly Financial Data [Line Items]                      
Rental and other revenues $ 181,388 $ 179,417 $ 178,792 $ 180,438 $ 175,861 $ 180,185 $ 177,283 $ 169,408 720,035 702,737 665,634
Net income 55,377 35,009 52,998 34,246 59,075 59,549 39,554 33,485 177,630 191,663 541,139
Net (income) attributable to noncontrolling interests in consolidated affiliates (289) (324) (308) (286) (325) (315) (299) (300) (1,207) (1,239) (1,253)
Distributions on Preferred Units (623) (623) (623) (623) (623) (623) (623) (623) (2,492) (2,492) (2,501)
Net income available for common unitholders $ 54,465 $ 34,062 $ 52,067 $ 33,337 $ 58,127 $ 58,611 $ 38,632 $ 32,562 $ 173,931 $ 187,932 $ 537,385
Earnings per Common Unit - basic:                      
Net income available for common unitholders (in dollars per share) $ 0.51 $ 0.32 $ 0.49 $ 0.32 $ 0.55 $ 0.55 $ 0.37 $ 0.31 $ 1.64 $ 1.79 $ 5.33
Earnings per Common Unit - diluted:                      
Net income available for common unitholders (in dollars per share) $ 0.51 $ 0.32 $ 0.49 $ 0.32 $ 0.55 $ 0.55 $ 0.37 $ 0.31 $ 1.64 $ 1.79 $ 5.32
v3.10.0.1
Subsequent Events (Details) - Highwoods Properties, Inc. [Member] - $ / shares
12 Months Ended
Feb. 05, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Subsequent Event [Line Items]        
Dividends declared per share of Common Stock (in dollars per share)   $ 1.85 $ 1.76 $ 1.70
Subsequent Event [Member]        
Subsequent Event [Line Items]        
Dividends declared per share of Common Stock (in dollars per share) $ 0.475      
v3.10.0.1
Schedule II (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Allowance for doubtful accounts, beginning balance $ 1,644 $ 1,421 $ 1,472
Additions to allowance for doubtful accounts 1,568 2,003 2,546
Deductions to allowance for doubtful accounts (1,361) (1,780) (2,597)
Allowance for doubtful accounts, ending balance 1,851 1,644 1,421
Allowance for Doubtful Accounts - Straight Line Rent [Member]      
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Allowance for doubtful accounts, beginning balance 819 692 257
Additions to allowance for doubtful accounts 599 1,503 1,501
Deductions to allowance for doubtful accounts (777) (1,376) (1,066)
Allowance for doubtful accounts, ending balance 641 819 692
Allowance for Doubtful Accounts - Accounts Receivable [Member]      
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Allowance for doubtful accounts, beginning balance 753 624 928
Additions to allowance for doubtful accounts 969 500 1,045
Deductions to allowance for doubtful accounts (556) (371) (1,349)
Allowance for doubtful accounts, ending balance 1,166 753 624
Allowance for Doubtful Accounts - Notes Receivable [Member]      
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Allowance for doubtful accounts, beginning balance 72 105 287
Additions to allowance for doubtful accounts 0 0 0
Deductions to allowance for doubtful accounts (28) (33) (182)
Allowance for doubtful accounts, ending balance $ 44 $ 72 $ 105
v3.10.0.1
Schedule III (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 5,173,754 $ 4,865,103 $ 4,915,858 $ 5,296,551 $ 5,173,754 $ 4,865,103
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,211,728 1,134,103 1,138,378 1,296,562 1,211,728 1,134,103
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Federal Income Tax Basis       4,900,000    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 5,173,754 4,865,103 4,915,858 5,296,551 5,173,754 4,865,103
Development in process exclusive of land included in Schedule III       165,537 88,452 279,602
Real estate assets, net, held for sale       0 (22,543) 0
Total real estate assets       5,462,088 5,239,663 5,144,705
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,211,728 1,134,103 1,138,378 1,296,562 1,211,728 1,134,103
Real estate assets, net, held for sale       0 (9,304) 0
Total accumulated depreciation       1,296,562 $ 1,202,424 $ 1,134,103
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, beginning balance 5,173,754 4,865,103 4,915,858      
Acquisitions, development and improvements 274,863 486,755 353,236      
Cost of real estate sold and retired (152,066) (178,104) (403,991)      
Real estate assets, ending balance 5,296,551 5,173,754 4,865,103      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, beginning balance 1,211,728 1,134,103 1,138,378      
Depreciation expense 191,035 184,385 173,072      
Real estate sold and retired (106,201) (106,760) (177,347)      
Accumulated depreciation, ending balance 1,296,562 $ 1,211,728 $ 1,134,103      
Atlanta, GA - 1700 Century Circle [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       2,482    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       2    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       1,466    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       3,948    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 3,950     3,950    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,505     1,505    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 3,950     3,950    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,505     1,505    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 3,950          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,505          
Atlanta, GA - 1700 Century Circle [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Atlanta, GA - 1700 Century Circle [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Atlanta, GA - 1800 Century Boulevard [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,444    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       29,081    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       10,260    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,444    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       39,341    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 40,785     40,785    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 21,007     21,007    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 40,785     40,785    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 21,007     21,007    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 40,785          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 21,007          
Atlanta, GA - 1800 Century Boulevard [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Atlanta, GA - 1800 Century Boulevard [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Atlanta, GA - 1825 Century Boulevard [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       864    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       303    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       14,987    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,167    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       14,987    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 16,154     16,154    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,786     5,786    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 16,154     16,154    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,786     5,786    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 16,154          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 5,786          
Atlanta, GA - 1825 Century Boulevard [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Atlanta, GA - 1825 Century Boulevard [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Atlanta, GA - 1875 Century Boulevard [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       8,924    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       8,258    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       17,182    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 17,182     17,182    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,865     6,865    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 17,182     17,182    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,865     6,865    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 17,182          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 6,865          
Atlanta, GA - 1875 Century Boulevard [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Atlanta, GA - 1875 Century Boulevard [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Atlanta, GA - 1900 Century Boulevard [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       4,744    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       710    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       5,454    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 5,454     5,454    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,883     4,883    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 5,454     5,454    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,883     4,883    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 5,454          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 4,883          
Atlanta, GA - 1900 Century Boulevard [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Atlanta, GA - 1900 Century Boulevard [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Atlanta, GA - 2200 Century Parkway [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       14,432    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       8,639    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       23,071    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 23,071     23,071    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,620     10,620    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 23,071     23,071    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,620     10,620    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 23,071          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 10,620          
Atlanta, GA - 2200 Century Parkway [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Atlanta, GA - 2200 Century Parkway [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Atlanta, GA - 2400 Century Center [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       406    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       14,920    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       406    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       14,920    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 15,326     15,326    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,715     6,715    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 15,326     15,326    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,715     6,715    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 15,326          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 6,715          
Atlanta, GA - 2400 Century Center [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Atlanta, GA - 2400 Century Center [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Atlanta, GA - 2500 Century Center [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       328    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       12,536    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       328    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       12,536    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 12,864     12,864    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,711     3,711    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 12,864     12,864    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,711     3,711    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 12,864          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,711          
Atlanta, GA - 2500 Century Center [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Atlanta, GA - 2500 Century Center [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Atlanta, GA - 2500/2635 Parking Garage [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       6,446    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       6,446    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 6,446     6,446    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,085     2,085    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 6,446     6,446    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,085     2,085    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 6,446          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 2,085          
Atlanta, GA - 2500/2635 Parking Garage [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Atlanta, GA - 2500/2635 Parking Garage [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Atlanta, GA - 2600 Century Parkway [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       10,679    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       4,319    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       14,998    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 14,998     14,998    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,269     7,269    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 14,998     14,998    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,269     7,269    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 14,998          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 7,269          
Atlanta, GA - 2600 Century Parkway [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Atlanta, GA - 2600 Century Parkway [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Atlanta, GA - 2635 Century Parkway [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       21,643    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       14,384    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       36,027    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 36,027     36,027    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 14,149     14,149    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 36,027     36,027    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 14,149     14,149    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 36,027          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 14,149          
Atlanta, GA - 2635 Century Parkway [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Atlanta, GA - 2635 Century Parkway [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Atlanta, GA - 2800 Century Parkway [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       20,449    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       12,641    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       33,090    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 33,090     33,090    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 17,981     17,981    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 33,090     33,090    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 17,981     17,981    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 33,090          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 17,981          
Atlanta, GA - 2800 Century Parkway [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Atlanta, GA - 2800 Century Parkway [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Atlanta, GA - 50 Glenlake [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,500    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       20,006    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       3,911    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,500    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       23,917    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 26,417     26,417    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,078     12,078    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 26,417     26,417    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,078     12,078    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 26,417          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 12,078          
Atlanta, GA - 50 Glenlake [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Atlanta, GA - 50 Glenlake [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Atlanta, GA - Century Plaza I [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,290    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       8,567    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       4,373    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,290    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       12,940    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 14,230     14,230    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,928     5,928    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 14,230     14,230    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,928     5,928    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 14,230          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 5,928          
Atlanta, GA - Century Plaza I [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Atlanta, GA - Century Plaza I [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Atlanta, GA - Century Plaza II [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,380    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       7,733    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       3,354    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,380    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       11,087    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 12,467     12,467    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,136     5,136    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 12,467     12,467    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,136     5,136    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 12,467          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 5,136          
Atlanta, GA - Century Plaza II [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Atlanta, GA - Century Plaza II [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Atlanta, GA - Charles W. Grant Parkway [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,196    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       1,416    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       15,178    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,612    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       15,178    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 17,790     17,790    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,770     5,770    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 17,790     17,790    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,770     5,770    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 17,790          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 5,770          
Atlanta, GA - Charles W. Grant Parkway [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Atlanta, GA - Charles W. Grant Parkway [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Atlanta, GA - Henry County Land [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       3,010    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       (284)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,726    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 2,726     2,726    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 2,726     2,726    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 2,726          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 0          
Atlanta, GA - 5405 Windward Parkway [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       3,342    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       32,111    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       19,576    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       3,342    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       51,687    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 55,029     55,029    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 22,150     22,150    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 55,029     55,029    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 22,150     22,150    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 55,029          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 22,150          
Atlanta, GA - 5405 Windward Parkway [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Atlanta, GA - 5405 Windward Parkway [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Atlanta, GA - River Point - Land [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       7,250    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       1,290    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       2,185    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       8,540    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       2,185    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 10,725     10,725    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 452     452    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 10,725     10,725    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 452     452    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 10,725          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 452          
Atlanta, GA - River Point - Land [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Atlanta, GA - River Point - Land [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Atlanta, GA - Riverwood 100 [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       5,785    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       64,913    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       (29)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       20,376    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       5,756    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       85,289    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 91,045     91,045    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 18,208     18,208    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 91,045     91,045    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 18,208     18,208    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 91,045          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 18,208          
Atlanta, GA - Riverwood 100 [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Atlanta, GA - Riverwood 100 [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Atlanta, GA - Tradeport - Land [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       5,243    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       (4,819)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       424    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 424     424    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 424     424    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 424          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 0          
Atlanta, GA - Two Alliance Center [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       9,579    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       125,549    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       4,620    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       9,579    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       130,169    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 139,748     139,748    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 29,951     29,951    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 139,748     139,748    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 29,951     29,951    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 139,748          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 29,951          
Atlanta, GA - Two Alliance Center [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Atlanta, GA - Two Alliance Center [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Atlanta, GA - One Alliance Center [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       14,775    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       123,071    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       17,005    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       14,775    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       140,076    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 154,851     154,851    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 23,283     23,283    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 154,851     154,851    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 23,283     23,283    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 154,851          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 23,283          
Atlanta, GA - One Alliance Center [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Atlanta, GA - One Alliance Center [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Atlanta, GA - 10 Glenlake North [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       5,349    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       26,334    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       11,993    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       5,349    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       38,327    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 43,676     43,676    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,053     7,053    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 43,676     43,676    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,053     7,053    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 43,676          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 7,053          
Atlanta, GA - 10 Glenlake North [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Atlanta, GA - 10 Glenlake North [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Atlanta, GA - 10 Glenlake South [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       5,103    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       22,811    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       3,249    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       5,103    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       26,060    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 31,163     31,163    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,724     5,724    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 31,163     31,163    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,724     5,724    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 31,163          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 5,724          
Atlanta, GA - 10 Glenlake South [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Atlanta, GA - 10 Glenlake South [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Atlanta, GA - Riverwood 200 [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       4,777    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       89,708    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       2,115    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       4,777    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       91,823    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 96,600     96,600    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,864     4,864    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 96,600     96,600    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,864     4,864    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 96,600          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 4,864          
Atlanta, GA - Riverwood 200 [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Atlanta, GA - Riverwood 200 [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Atlanta, GA - Riverwood 300 - Land [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       400    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       710    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       400    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       710    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 1,110     1,110    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 34     34    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 1,110     1,110    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 34     34    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 1,110          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 34          
Atlanta, GA - Riverwood 300 - Land [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Atlanta, GA - Riverwood 300 - Land [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Atlanta, GA - Monarch Tower [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       22,717    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       143,068    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       7,573    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       22,717    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       150,641    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 173,358     173,358    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 15,432     15,432    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 173,358     173,358    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 15,432     15,432    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 173,358          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 15,432          
Atlanta, GA - Monarch Tower [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Atlanta, GA - Monarch Tower [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Atlanta, GA - Monarch Plaza [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       27,678    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       88,962    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       8,302    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       27,678    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       97,264    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 124,942     124,942    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,163     10,163    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 124,942     124,942    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,163     10,163    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 124,942          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 10,163          
Atlanta, GA - Monarch Plaza [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Atlanta, GA - Monarch Plaza [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Memphis, TN - Triad Centre I [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,340    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       11,385    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       (849)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       4,733    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,491    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       16,118    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 17,609     17,609    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,681     7,681    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 17,609     17,609    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,681     7,681    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 17,609          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 7,681          
Memphis, TN - Triad Centre I [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Memphis, TN - Triad Centre I [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Memphis, TN - Triad Centre II [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,980    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       8,677    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       (404)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       5,441    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,576    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       14,118    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 15,694     15,694    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,630     6,630    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 15,694     15,694    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,630     6,630    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 15,694          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 6,630          
Memphis, TN - Triad Centre II [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Memphis, TN - Triad Centre II [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Memphis, TN - Atrium I & II [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,570    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       6,253    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       3,638    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,570    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       9,891    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 11,461     11,461    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,251     5,251    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 11,461     11,461    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,251     5,251    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 11,461          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 5,251          
Memphis, TN - Atrium I & II [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Memphis, TN - Atrium I & II [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Memphis, TN - Centrum [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,013    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       5,580    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       3,281    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,013    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       8,861    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 9,874     9,874    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,618     4,618    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 9,874     9,874    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,618     4,618    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 9,874          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 4,618          
Memphis, TN - Centrum [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Memphis, TN - Centrum [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Memphis, TN - Comcast [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       946    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       6,021    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       946    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       6,021    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 6,967     6,967    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,581     1,581    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 6,967     6,967    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,581     1,581    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 6,967          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,581          
Memphis, TN - Comcast [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Memphis, TN - Comcast [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Memphis, TN - International Place II [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       4,884    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       27,782    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       6,815    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       4,884    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       34,597    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 39,481     39,481    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 18,218     18,218    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 39,481     39,481    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 18,218     18,218    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 39,481          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 18,218          
Memphis, TN - International Place II [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Memphis, TN - International Place II [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Memphis, TN - PennMarc Centre [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       3,607    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       10,240    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       4,667    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       3,607    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       14,907    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 18,514     18,514    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,894     4,894    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 18,514     18,514    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,894     4,894    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 18,514          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 4,894          
Memphis, TN - PennMarc Centre [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Memphis, TN - PennMarc Centre [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Memphis, TN - Colonnade [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,300    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       6,481    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       267    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       2,277    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,567    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       8,758    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 10,325     10,325    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,386     4,386    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 10,325     10,325    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,386     4,386    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 10,325          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 4,386          
Memphis, TN - Colonnade [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Memphis, TN - Colonnade [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Memphis, TN - Crescent Center [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       7,875    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       32,756    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       (547)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       11,533    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       7,328    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       44,289    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 51,617     51,617    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 11,780     11,780    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 51,617     51,617    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 11,780     11,780    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 51,617          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 11,780          
Memphis, TN - Crescent Center [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Memphis, TN - Crescent Center [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Memphis, TN - Southwind - Land [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       3,662    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       (2,475)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,187    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 1,187     1,187    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 1,187     1,187    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 1,187          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 0          
Memphis, TN - Triad Center III [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,253    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       36,844    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,253    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       36,844    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 38,097     38,097    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,500     10,500    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 38,097     38,097    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,500     10,500    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 38,097          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 10,500          
Memphis, TN - Triad Center III [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Memphis, TN - Triad Center III [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Memphis, TN - Capital Grille [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       311    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       3,258    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       (23)    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       311    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       3,235    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 3,546     3,546    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,289     1,289    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 3,546     3,546    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,289     1,289    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 3,546          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,289          
Memphis, TN - Capital Grille [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Memphis, TN - Capital Grille [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Memphis, TN - Seasons 52 [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       320    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       3,741    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       (39)    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       320    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       3,702    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 4,022     4,022    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,419     1,419    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 4,022     4,022    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,419     1,419    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 4,022          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,419          
Memphis, TN - Seasons 52 [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Memphis, TN - Seasons 52 [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Memphis, TN - International Place IV [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       4,940    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       49,141    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       (193)    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       4,940    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       48,948    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 53,888     53,888    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,787     4,787    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 53,888     53,888    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,787     4,787    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 53,888          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 4,787          
Memphis, TN - International Place IV [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Memphis, TN - International Place IV [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Nashville, TN - 3322 West End [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       3,025    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       27,490    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       9,413    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       3,025    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       36,903    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 39,928     39,928    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 15,815     15,815    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 39,928     39,928    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 15,815     15,815    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 39,928          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 15,815          
Nashville, TN - 3322 West End [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Nashville, TN - 3322 West End [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Nashville, TN - 3401 West End [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       5,862    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       22,917    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       5,675    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       5,862    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       28,592    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 34,454     34,454    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 14,717     14,717    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 34,454     34,454    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 14,717     14,717    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 34,454          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 14,717          
Nashville, TN - 3401 West End [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Nashville, TN - 3401 West End [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Nashville, TN - 5310 Maryland Way [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,863    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       7,201    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       3,641    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,863    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       10,842    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 12,705     12,705    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,544     5,544    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 12,705     12,705    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,544     5,544    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 12,705          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 5,544          
Nashville, TN - 5310 Maryland Way [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Nashville, TN - 5310 Maryland Way [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Nashville, TN - Cool Springs I & II Deck [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       3,990    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       3,990    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 3,990     3,990    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,112     1,112    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 3,990     3,990    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,112     1,112    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 3,990          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,112          
Nashville, TN - Cool Springs I & II Deck [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Nashville, TN - Cool Springs I & II Deck [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Nashville, TN - Cool Springs III & IV Deck [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       4,463    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       4,463    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 4,463     4,463    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,309     1,309    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 4,463     4,463    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,309     1,309    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 4,463          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,309          
Nashville, TN - Cool Springs III & IV Deck [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Nashville, TN - Cool Springs III & IV Deck [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Nashville, TN - Cool Springs I [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,583    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       15    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       13,657    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,598    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       13,657    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 15,255     15,255    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,634     6,634    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 15,255     15,255    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,634     6,634    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 15,255          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 6,634          
Nashville, TN - Cool Springs I [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Nashville, TN - Cool Springs I [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Nashville, TN - Cool Springs II [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,824    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       346    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       18,740    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,170    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       18,740    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 20,910     20,910    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,312     8,312    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 20,910     20,910    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,312     8,312    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 20,910          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 8,312          
Nashville, TN - Cool Springs II [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Nashville, TN - Cool Springs II [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Nashville, TN - Cool Springs III [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,631    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       804    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       15,337    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,435    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       15,337    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 17,772     17,772    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,051     5,051    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 17,772     17,772    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,051     5,051    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 17,772          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 5,051          
Nashville, TN - Cool Springs III [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Nashville, TN - Cool Springs III [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Nashville, TN - Cool Springs IV [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,715    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       19,152    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,715    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       19,152    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 20,867     20,867    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,100     5,100    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 20,867     20,867    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,100     5,100    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 20,867          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 5,100          
Nashville, TN - Cool Springs IV [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Nashville, TN - Cool Springs IV [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Nashville, TN - Cool Springs V (Healthways) [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       3,688    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       295    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       53,000    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       3,983    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       53,000    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 56,983     56,983    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 19,412     19,412    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 56,983     56,983    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 19,412     19,412    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 56,983          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 19,412          
Nashville, TN - Cool Springs V (Healthways) [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Nashville, TN - Cool Springs V (Healthways) [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Nashville, TN - Harpeth on the Green II [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,419    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       5,677    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       2,287    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,419    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       7,964    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 9,383     9,383    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,012     4,012    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 9,383     9,383    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,012     4,012    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 9,383          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 4,012          
Nashville, TN - Harpeth on the Green II [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Nashville, TN - Harpeth on the Green II [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Nashville, TN - Harpeth on the Green III [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,660    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       6,649    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       2,533    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,660    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       9,182    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 10,842     10,842    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,865     4,865    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 10,842     10,842    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,865     4,865    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 10,842          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 4,865          
Nashville, TN - Harpeth on the Green III [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Nashville, TN - Harpeth on the Green III [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Nashville, TN - Harpeth on the Green IV [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,713    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       6,842    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       2,290    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,713    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       9,132    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 10,845     10,845    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,752     4,752    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 10,845     10,845    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,752     4,752    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 10,845          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 4,752          
Nashville, TN - Harpeth on the Green IV [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Nashville, TN - Harpeth on the Green IV [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Nashville, TN - Harpeth on The Green V [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       662    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       197    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       5,602    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       859    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       5,602    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 6,461     6,461    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,170     3,170    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 6,461     6,461    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,170     3,170    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 6,461          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,170          
Nashville, TN - Harpeth on The Green V [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Nashville, TN - Harpeth on The Green V [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Nashville, TN - Hickory Trace [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,164    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       164    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       5,085    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,328    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       5,085    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 6,413     6,413    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,981     1,981    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 6,413     6,413    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,981     1,981    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 6,413          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,981          
Nashville, TN - Hickory Trace [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Nashville, TN - Hickory Trace [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Nashville, TN - Highwoods Plaza I [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,552    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       307    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       8,854    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,859    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       8,854    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 10,713     10,713    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,936     4,936    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 10,713     10,713    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,936     4,936    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 10,713          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 4,936          
Nashville, TN - Highwoods Plaza I [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Nashville, TN - Highwoods Plaza I [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Nashville, TN - Highwoods Plaza II [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,448    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       307    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       9,033    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,755    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       9,033    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 10,788     10,788    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,151     4,151    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 10,788     10,788    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,151     4,151    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 10,788          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 4,151          
Nashville, TN - Highwoods Plaza II [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Nashville, TN - Highwoods Plaza II [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Nashville, TN - Seven Springs I [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,076    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       592    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       13,268    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,668    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       13,268    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 15,936     15,936    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,413     5,413    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 15,936     15,936    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,413     5,413    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 15,936          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 5,413          
Nashville, TN - Seven Springs I [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Nashville, TN - Seven Springs I [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Nashville, TN - SouthPointe [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,655    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       310    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       7,657    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,965    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       7,657    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 9,622     9,622    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,523     3,523    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 9,622     9,622    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,523     3,523    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 9,622          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,523          
Nashville, TN - SouthPointe [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Nashville, TN - SouthPointe [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Nashville, TN - Ramparts [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,394    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       12,806    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       7,425    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,394    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       20,231    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 22,625     22,625    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,209     7,209    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 22,625     22,625    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,209     7,209    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 22,625          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 7,209          
Nashville, TN - Ramparts [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Nashville, TN - Ramparts [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Nashville, TN - Westwood South [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,106    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       382    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       11,447    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,488    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       11,447    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 13,935     13,935    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,916     4,916    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 13,935     13,935    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,916     4,916    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 13,935          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 4,916          
Nashville, TN - Westwood South [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Nashville, TN - Westwood South [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Nashville, TN - 100 Winners Circle [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,497    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       7,258    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       2,332    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,497    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       9,590    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 11,087     11,087    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,972     4,972    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 11,087     11,087    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,972     4,972    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 11,087          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 4,972          
Nashville, TN - 100 Winners Circle [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Nashville, TN - 100 Winners Circle [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Nashville, TN - The Pinnacle at Symphony Place [Member]            
Real Estate and Accumulated Depreciation [Line Items]            
Real Estate and Accumulated Depreciation, Encumbrances       97,179    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       141,469    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       6,093    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       147,562    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 147,562     147,562    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 28,156     28,156    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 147,562     147,562    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 28,156     28,156    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 147,562          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 28,156          
Nashville, TN - The Pinnacle at Symphony Place [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Nashville, TN - The Pinnacle at Symphony Place [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Nashville, TN - Seven Springs East (LifePoint) [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,525    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       37,587    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       143    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,525    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       37,730    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 40,255     40,255    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,111     6,111    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 40,255     40,255    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,111     6,111    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 40,255          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 6,111          
Nashville, TN - Seven Springs East (LifePoint) [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Nashville, TN - Seven Springs East (LifePoint) [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Nashville, TN - The Shops at Seven Springs [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       803    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       8,223    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       526    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       803    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       8,749    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 9,552     9,552    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,869     1,869    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 9,552     9,552    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,869     1,869    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 9,552          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,869          
Nashville, TN - The Shops at Seven Springs [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Nashville, TN - The Shops at Seven Springs [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Nashville, TN - Seven Springs West [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,439    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       51,306    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       2,016    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,439    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       53,322    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 55,761     55,761    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,292     4,292    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 55,761     55,761    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,292     4,292    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 55,761          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 4,292          
Nashville, TN - Seven Springs West [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Nashville, TN - Seven Springs West [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Nashville, TN - Seven Springs II [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,356    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       30,048    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       800    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,356    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       30,848    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 33,204     33,204    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,708     1,708    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 33,204     33,204    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,708     1,708    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 33,204          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,708          
Nashville, TN - Seven Springs II [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Nashville, TN - Seven Springs II [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Nashville, TN - Bridgestone Tower [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       15,639    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       169,392    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       155    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       15,639    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       169,547    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 185,186     185,186    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,682     6,682    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 185,186     185,186    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,682     6,682    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 185,186          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 6,682          
Nashville, TN - Bridgestone Tower [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Nashville, TN - Bridgestone Tower [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Nashville, TN - 5501 Virginia Way [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       4,534    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       18,714    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       4,534    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       18,714    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 23,248     23,248    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 14     14    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 23,248     23,248    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 14     14    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 23,248          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 14          
Nashville, TN - 5501 Virginia Way [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Nashville, TN - 5501 Virginia Way [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Nashville, TN - 1100 Broadway - Land [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       26,137    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       26,137    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 26,137     26,137    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 26,137     26,137    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 26,137          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 0          
Nashville, TN - Church St/Wine Glass - Land [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       30,713    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       30,713    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 30,713     30,713    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 30,713     30,713    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 30,713          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 0          
Orlando, FL - Berkshire at MetroCenter [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,265    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       672    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       10,991    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,937    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       10,991    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 12,928     12,928    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,174     3,174    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 12,928     12,928    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,174     3,174    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 12,928          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,174          
Orlando, FL - Berkshire at MetroCenter [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Orlando, FL - Berkshire at MetroCenter [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Orlando, FL - Capital Plaza Three - Land [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,994    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       18    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       3,012    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 3,012     3,012    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 3,012     3,012    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 3,012          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 0          
Orlando, FL - Eola Park - Land [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,027    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,027    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 2,027     2,027    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 2,027     2,027    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 2,027          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 0          
Orlando, FL - Oxford - Land [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,100    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       51    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       1,107    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,151    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       1,107    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 2,258     2,258    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 14     14    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 2,258     2,258    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 14     14    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 2,258          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 14          
Orlando, FL - Oxford - Land [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Orlando, FL - Oxford - Land [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Orlando, FL - Stratford - Land [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,034    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       (148)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,886    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 1,886     1,886    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 1,886     1,886    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 1,886          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 0          
Orlando, FL - Windsor at Metro Center [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       2,060    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       9,380    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,060    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       9,380    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 11,440     11,440    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,220     3,220    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 11,440     11,440    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,220     3,220    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 11,440          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,220          
Orlando, FL - Windsor at Metro Center [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Orlando, FL - Windsor at Metro Center [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
South Florida - The 1800 Eller Drive Building [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       9,851    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       3,334    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       13,185    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 13,185     13,185    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,313     8,313    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 13,185     13,185    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,313     8,313    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 13,185          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 8,313          
South Florida - The 1800 Eller Drive Building [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
South Florida - The 1800 Eller Drive Building [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Orlando - Seaside Plaza [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       3,893    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       29,541    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       6,885    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       3,893    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       36,426    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 40,319     40,319    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,912     6,912    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 40,319     40,319    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,912     6,912    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 40,319          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 6,912          
Orlando - Seaside Plaza [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Orlando - Seaside Plaza [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Orlando - Capital Plaza Two [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       4,346    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       43,394    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       5,954    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       4,346    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       49,348    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 53,694     53,694    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,601     8,601    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 53,694     53,694    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,601     8,601    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 53,694          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 8,601          
Orlando - Capital Plaza Two [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Orlando - Capital Plaza Two [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Orlando - Capital Plaza One [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       3,482    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       27,321    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       5,917    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       3,482    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       33,238    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 36,720     36,720    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,183     5,183    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 36,720     36,720    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,183     5,183    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 36,720          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 5,183          
Orlando - Capital Plaza One [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Orlando - Capital Plaza One [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Orlando - Landmark Center Two [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       4,743    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       22,031    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       8,090    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       4,743    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       30,121    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 34,864     34,864    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,234     6,234    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 34,864     34,864    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,234     6,234    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 34,864          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 6,234          
Orlando - Landmark Center Two [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Orlando - Landmark Center Two [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Orlando - Landmark Center One [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       6,207    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       22,655    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       8,599    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       6,207    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       31,254    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 37,461     37,461    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,742     5,742    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 37,461     37,461    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,742     5,742    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 37,461          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 5,742          
Orlando - Landmark Center One [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Orlando - Landmark Center One [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Orlando - 300 South Orange [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       3,490    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       56,079    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       7,178    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       3,490    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       63,257    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 66,747     66,747    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,749     8,749    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 66,747     66,747    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,749     8,749    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 66,747          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 8,749          
Orlando - 300 South Orange [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Orlando - 300 South Orange [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Orlando, FL - Eola Centre [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       3,758    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       11,160    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       5,162    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       3,758    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       16,322    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 20,080     20,080    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,981     1,981    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 20,080     20,080    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,981     1,981    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 20,080          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,981          
Orlando, FL - Eola Centre [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Orlando, FL - Eola Centre [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 6348 Burnt Poplar Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       724    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       2,900    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       327    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       724    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       3,227    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 3,951     3,951    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,881     1,881    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 3,951     3,951    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,881     1,881    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 3,951          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,881          
Greensboro, NC - 6348 Burnt Poplar Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 6348 Burnt Poplar Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 6350 Burnt Poplar Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       341    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       1,374    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       761    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       341    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       2,135    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 2,476     2,476    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,027     1,027    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 2,476     2,476    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,027     1,027    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 2,476          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,027          
Greensboro, NC - 6350 Burnt Poplar Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 6350 Burnt Poplar Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 420 Gallimore Dairy Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       379    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       1,516    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       1,067    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       379    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       2,583    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 2,962     2,962    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,312     1,312    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 2,962     2,962    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,312     1,312    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 2,962          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,312          
Greensboro, NC - 420 Gallimore Dairy Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 420 Gallimore Dairy Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 418 Gallimore Dairy Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       462    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       1,849    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       523    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       462    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       2,372    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 2,834     2,834    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,356     1,356    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 2,834     2,834    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,356     1,356    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 2,834          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,356          
Greensboro, NC - 418 Gallimore Dairy Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 418 Gallimore Dairy Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 416 Gallimore Dairy Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       322    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       1,293    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       561    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       322    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       1,854    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 2,176     2,176    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 989     989    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 2,176     2,176    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 989     989    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 2,176          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 989          
Greensboro, NC - 416 Gallimore Dairy Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 416 Gallimore Dairy Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 7031 Albert Pick Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       510    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       2,921    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       2,253    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       510    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       5,174    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 5,684     5,684    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,684     2,684    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 5,684     5,684    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,684     2,684    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 5,684          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 2,684          
Greensboro, NC - 7031 Albert Pick Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 7031 Albert Pick Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 7029 Albert Pick Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       739    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       3,237    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       1,601    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       739    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       4,838    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 5,577     5,577    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,542     2,542    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 5,577     5,577    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,542     2,542    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 5,577          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 2,542          
Greensboro, NC - 7029 Albert Pick Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 7029 Albert Pick Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 7025 Albert Pick Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,393    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       9,576    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       5,897    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,393    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       15,473    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 17,866     17,866    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,109     8,109    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 17,866     17,866    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,109     8,109    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 17,866          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 8,109          
Greensboro, NC - 7025 Albert Pick Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 7025 Albert Pick Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 7027 Albert Pick Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       850    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       699    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       5,293    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,549    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       5,293    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 6,842     6,842    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,363     2,363    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 6,842     6,842    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,363     2,363    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 6,842          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 2,363          
Greensboro, NC - 7027 Albert Pick Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 7027 Albert Pick Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 7009 Albert Pick Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       224    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       1,068    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       263    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       224    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       1,331    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 1,555     1,555    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 750     750    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 1,555     1,555    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 750     750    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 1,555          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 750          
Greensboro, NC - 7009 Albert Pick Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 7009 Albert Pick Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 426 Gallimore Dairy Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       465    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       380    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       1,056    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       845    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       1,056    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 1,901     1,901    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 470     470    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 1,901     1,901    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 470     470    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 1,901          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 470          
Greensboro, NC - 426 Gallimore Dairy Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 426 Gallimore Dairy Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 422 Gallimore Dairy Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       145    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       1,081    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       378    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       145    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       1,459    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 1,604     1,604    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 908     908    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 1,604     1,604    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 908     908    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 1,604          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 908          
Greensboro, NC - 422 Gallimore Dairy Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 422 Gallimore Dairy Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 406 Gallimore Dairy Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       265    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       270    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       883    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       535    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       883    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 1,418     1,418    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 391     391    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 1,418     1,418    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 391     391    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 1,418          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 391          
Greensboro, NC - 406 Gallimore Dairy Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 406 Gallimore Dairy Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 7021 Albert Pick Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       237    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       1,103    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       258    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       237    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       1,361    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 1,598     1,598    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 795     795    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 1,598     1,598    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 795     795    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 1,598          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 795          
Greensboro, NC - 7021 Albert Pick Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 7021 Albert Pick Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 7019 Albert Pick Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       192    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       946    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       365    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       192    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       1,311    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 1,503     1,503    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 799     799    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 1,503     1,503    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 799     799    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 1,503          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 799          
Greensboro, NC - 7019 Albert Pick Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 7019 Albert Pick Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 7015 Albert Pick Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       305    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       1,219    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       227    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       305    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       1,446    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 1,751     1,751    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 847     847    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 1,751     1,751    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 847     847    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 1,751          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 847          
Greensboro, NC - 7015 Albert Pick Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 7015 Albert Pick Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 7017 Albert Pick Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       225    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       928    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       409    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       225    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       1,337    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 1,562     1,562    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 741     741    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 1,562     1,562    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 741     741    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 1,562          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 741          
Greensboro, NC - 7017 Albert Pick Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 7017 Albert Pick Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 7011 Albert Pick Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       171    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       777    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       320    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       171    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       1,097    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 1,268     1,268    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 631     631    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 1,268     1,268    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 631     631    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 1,268          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 631          
Greensboro, NC - 7011 Albert Pick Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 7011 Albert Pick Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 424 Gallimore Dairy Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       271    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       239    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       1,038    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       510    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       1,038    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 1,548     1,548    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 481     481    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 1,548     1,548    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 481     481    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 1,548          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 481          
Greensboro, NC - 424 Gallimore Dairy Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 424 Gallimore Dairy Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 410 Gallimore Dairy Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       356    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       1,613    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       805    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       356    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       2,418    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 2,774     2,774    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,382     1,382    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 2,774     2,774    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,382     1,382    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 2,774          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,382          
Greensboro, NC - 410 Gallimore Dairy Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 410 Gallimore Dairy Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 412 Gallimore Dairy Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       374    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       1,523    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       578    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       374    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       2,101    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 2,475     2,475    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,224     1,224    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 2,475     2,475    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,224     1,224    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 2,475          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,224          
Greensboro, NC - 412 Gallimore Dairy Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 412 Gallimore Dairy Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 408 Gallimore Dairy Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       341    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       1,486    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       648    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       341    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       2,134    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 2,475     2,475    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,092     1,092    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 2,475     2,475    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,092     1,092    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 2,475          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,092          
Greensboro, NC - 408 Gallimore Dairy Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 408 Gallimore Dairy Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 414 Gallimore Dairy Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       659    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       2,676    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       933    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       659    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       3,609    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 4,268     4,268    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,042     2,042    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 4,268     4,268    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,042     2,042    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 4,268          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 2,042          
Greensboro, NC - 414 Gallimore Dairy Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 414 Gallimore Dairy Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 237 Burgess Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       860    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       2,919    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       926    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       860    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       3,845    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 4,705     4,705    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,039     2,039    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 4,705     4,705    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,039     2,039    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 4,705          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 2,039          
Greensboro, NC - 237 Burgess Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 237 Burgess Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 235 Burgess Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,302    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       4,392    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       1,344    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,302    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       5,736    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 7,038     7,038    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,058     3,058    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 7,038     7,038    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,058     3,058    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 7,038          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,058          
Greensboro, NC - 235 Burgess Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 235 Burgess Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 241 Burgess Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       450    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       1,517    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       843    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       450    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       2,360    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 2,810     2,810    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,289     1,289    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 2,810     2,810    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,289     1,289    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 2,810          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,289          
Greensboro, NC - 241 Burgess Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 241 Burgess Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 243 Burgess Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       452    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       1,514    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       489    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       452    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       2,003    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 2,455     2,455    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,006     1,006    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 2,455     2,455    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,006     1,006    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 2,455          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,006          
Greensboro, NC - 243 Burgess Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 243 Burgess Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 496 Gallimore Dairy Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       546    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       3,041    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       546    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       3,041    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 3,587     3,587    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,219     1,219    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 3,587     3,587    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,219     1,219    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 3,587          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,219          
Greensboro, NC - 496 Gallimore Dairy Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 496 Gallimore Dairy Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 494 Gallimore Dairy Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       749    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       3,124    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       749    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       3,124    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 3,873     3,873    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,366     1,366    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 3,873     3,873    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,366     1,366    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 3,873          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,366          
Greensboro, NC - 494 Gallimore Dairy Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 494 Gallimore Dairy Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 486 Gallimore Dairy Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       603    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       3,385    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       603    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       3,385    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 3,988     3,988    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,351     1,351    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 3,988     3,988    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,351     1,351    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 3,988          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,351          
Greensboro, NC - 486 Gallimore Dairy Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 486 Gallimore Dairy Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 488 Gallimore Dairy Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       499    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       2,374    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       499    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       2,374    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 2,873     2,873    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,029     1,029    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 2,873     2,873    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,029     1,029    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 2,873          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,029          
Greensboro, NC - 488 Gallimore Dairy Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 488 Gallimore Dairy Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 490 Gallimore Dairy Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,733    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       4,424    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,733    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       4,424    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 6,157     6,157    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,032     2,032    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 6,157     6,157    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,032     2,032    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 6,157          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 2,032          
Greensboro, NC - 490 Gallimore Dairy Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 490 Gallimore Dairy Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - Brigham Road - Land [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       7,059    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       (5,510)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,549    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 1,549     1,549    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 1,549     1,549    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 1,549          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 0          
Greensboro, NC - 651 Brigham Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       453    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       360    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       2,931    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       813    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       2,931    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 3,744     3,744    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,240     1,240    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 3,744     3,744    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,240     1,240    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 3,744          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,240          
Greensboro, NC - 651 Brigham Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 651 Brigham Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 657 Brigham Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,733    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       881    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       10,820    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       3,614    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       10,820    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 14,434     14,434    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,390     3,390    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 14,434     14,434    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,390     3,390    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 14,434          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,390          
Greensboro, NC - 657 Brigham Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 657 Brigham Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 653 Brigham Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       814    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       3,603    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       814    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       3,603    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 4,417     4,417    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 993     993    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 4,417     4,417    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 993     993    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 4,417          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 993          
Greensboro, NC - 653 Brigham Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 653 Brigham Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 1501 Highwoods Boulevard [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,476    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       8,957    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,476    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       8,957    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 10,433     10,433    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,485     3,485    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 10,433     10,433    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,485     3,485    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 10,433          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,485          
Greensboro, NC - 1501 Highwoods Boulevard [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 1501 Highwoods Boulevard [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - Jefferson Pilot - Land [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       11,759    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       (4,311)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       7,448    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 7,448     7,448    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 7,448     7,448    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 7,448          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 0          
Greensboro, NC - 4200 Tudor Lane [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       515    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       383    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       2,915    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       898    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       2,915    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 3,813     3,813    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,379     1,379    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 3,813     3,813    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,379     1,379    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 3,813          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,379          
Greensboro, NC - 4200 Tudor Lane [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 4200 Tudor Lane [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 4224 Tudor Lane [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       435    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       288    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       2,445    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       723    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       2,445    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 3,168     3,168    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,145     1,145    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 3,168     3,168    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,145     1,145    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 3,168          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,145          
Greensboro, NC - 4224 Tudor Lane [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 4224 Tudor Lane [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 7023 Albert Pick [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       834    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       3,459    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       1,146    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       834    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       4,605    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 5,439     5,439    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,545     2,545    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 5,439     5,439    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,545     2,545    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 5,439          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 2,545          
Greensboro, NC - 7023 Albert Pick [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 7023 Albert Pick [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 370 Knollwood Street [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,826    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       7,495    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       4,134    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,826    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       11,629    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 13,455     13,455    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,422     6,422    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 13,455     13,455    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,422     6,422    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 13,455          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 6,422          
Greensboro, NC - 370 Knollwood Street [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 370 Knollwood Street [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 380 Knollwood Street [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,989    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       12,029    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       5,301    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,989    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       17,330    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 20,319     20,319    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,223     9,223    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 20,319     20,319    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,223     9,223    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 20,319          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 9,223          
Greensboro, NC - 380 Knollwood Street [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 380 Knollwood Street [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 1126 North Church St [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,734    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       9,129    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       1,499    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,734    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       10,628    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 13,362     13,362    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,791     1,791    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 13,362     13,362    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,791     1,791    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 13,362          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,791          
Greensboro, NC - 1126 North Church St [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 1126 North Church St [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 1130 North Church St [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,376    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       5,451    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       (629)    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,376    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       4,822    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 7,198     7,198    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 790     790    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 7,198     7,198    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 790     790    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 7,198          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 790          
Greensboro, NC - 1130 North Church St [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 1130 North Church St [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 1132 North Church St [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       925    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       4,551    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       98    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       925    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       4,649    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 5,574     5,574    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,158     1,158    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 5,574     5,574    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,158     1,158    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 5,574          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,158          
Greensboro, NC - 1132 North Church St [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 1132 North Church St [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 628 Green Valley [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,906    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       12,141    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       1,527    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,906    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       13,668    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 16,574     16,574    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,270     2,270    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 16,574     16,574    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,270     2,270    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 16,574          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 2,270          
Greensboro, NC - 628 Green Valley [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 628 Green Valley [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 701 Green Valley [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       3,787    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       7,719    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       1,183    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       3,787    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       8,902    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 12,689     12,689    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,751     1,751    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 12,689     12,689    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,751     1,751    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 12,689          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,751          
Greensboro, NC - 701 Green Valley [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 701 Green Valley [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 661 Brigham Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       890    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       5,512    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       548    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       890    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       6,060    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 6,950     6,950    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 444     444    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 6,950     6,950    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 444     444    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 6,950          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 444          
Greensboro, NC - 661 Brigham Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 661 Brigham Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Greensboro, NC - 655 Brigham Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       899    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       6,538    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       899    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       6,538    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 7,437     7,437    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 303     303    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 7,437     7,437    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 303     303    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 7,437          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 303          
Greensboro, NC - 655 Brigham Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Greensboro, NC - 655 Brigham Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Pittsburgh, PA - One PPG Place [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       9,819    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       107,643    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       45,077    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       9,819    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       152,720    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 162,539     162,539    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 38,031     38,031    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 162,539     162,539    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 38,031     38,031    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 162,539          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 38,031          
Pittsburgh, PA - One PPG Place [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Pittsburgh, PA - One PPG Place [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Pittsburgh, PA - Two PPG Place [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,302    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       10,978    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       9,732    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,302    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       20,710    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 23,012     23,012    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,967     3,967    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 23,012     23,012    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,967     3,967    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 23,012          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,967          
Pittsburgh, PA - Two PPG Place [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Pittsburgh, PA - Two PPG Place [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Pittsburgh, PA - Three PPG Place [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       501    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       2,923    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       4,166    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       501    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       7,089    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 7,590     7,590    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,905     1,905    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 7,590     7,590    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,905     1,905    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 7,590          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,905          
Pittsburgh, PA - Three PPG Place [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Pittsburgh, PA - Three PPG Place [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Pittsburgh, PA - Four PPG Place [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       620    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       3,239    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       2,886    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       620    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       6,125    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 6,745     6,745    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,515     1,515    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 6,745     6,745    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,515     1,515    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 6,745          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,515          
Pittsburgh, PA - Four PPG Place [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Pittsburgh, PA - Four PPG Place [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Pittsburgh, PA - Five PPG Place [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       803    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       4,924    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       1,950    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       803    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       6,874    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 7,677     7,677    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,080     2,080    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 7,677     7,677    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,080     2,080    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 7,677          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 2,080          
Pittsburgh, PA - Five PPG Place [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Pittsburgh, PA - Five PPG Place [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Pittsburgh, PA - Six PPG Place [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       3,353    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       25,602    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       13,525    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       3,353    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       39,127    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 42,480     42,480    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,566     7,566    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 42,480     42,480    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,566     7,566    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 42,480          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 7,566          
Pittsburgh, PA - Six PPG Place [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Pittsburgh, PA - Six PPG Place [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Pittsburgh, PA - EQT Plaza [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       16,457    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       83,812    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       12,943    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       16,457    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       96,755    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 113,212     113,212    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 20,859     20,859    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 113,212     113,212    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 20,859     20,859    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 113,212          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 20,859          
Pittsburgh, PA - EQT Plaza [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Pittsburgh, PA - EQT Plaza [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - 3600 Glenwood Avenue [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       10,994    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       4,493    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       15,487    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 15,487     15,487    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,798     8,798    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 15,487     15,487    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,798     8,798    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 15,487          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 8,798          
Raleigh, NC - 3600 Glenwood Avenue [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - 3600 Glenwood Avenue [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - 3737 Glenwood Avenue [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       318    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       16,391    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       318    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       16,391    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 16,709     16,709    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,641     7,641    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 16,709     16,709    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,641     7,641    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 16,709          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 7,641          
Raleigh, NC - 3737 Glenwood Avenue [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - 3737 Glenwood Avenue [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - 4800 North Park [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,678    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       17,630    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       4,977    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,678    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       22,607    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 25,285     25,285    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 14,279     14,279    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 25,285     25,285    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 14,279     14,279    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 25,285          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 14,279          
Raleigh, NC - 4800 North Park [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - 4800 North Park [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - 5000 North Park [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,010    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       4,612    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       (49)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       3,214    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       961    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       7,826    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 8,787     8,787    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,952     3,952    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 8,787     8,787    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,952     3,952    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 8,787          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,952          
Raleigh, NC - 5000 North Park [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - 5000 North Park [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - 801 Raleigh Corporate Center [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       828    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       272    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       10,657    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,100    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       10,657    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 11,757     11,757    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,154     4,154    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 11,757     11,757    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,154     4,154    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 11,757          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 4,154          
Raleigh, NC - 801 Raleigh Corporate Center [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - 801 Raleigh Corporate Center [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - 2500 Blue Ridge Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       722    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       4,606    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       1,412    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       722    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       6,018    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 6,740     6,740    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,423     3,423    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 6,740     6,740    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,423     3,423    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 6,740          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,423          
Raleigh, NC - 2500 Blue Ridge Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - 2500 Blue Ridge Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - 2418 Blue Ridge Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       462    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       1,410    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       764    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       462    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       2,174    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 2,636     2,636    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,404     1,404    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 2,636     2,636    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,404     1,404    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 2,636          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,404          
Raleigh, NC - 2418 Blue Ridge Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - 2418 Blue Ridge Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - Cape Fear [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       131    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       1,630    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       (2)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       (836)    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       129    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       794    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 923     923    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 392     392    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 923     923    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 392     392    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 923          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 392          
Raleigh, NC - Cape Fear [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - Cape Fear [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - Catawba [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       125    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       1,635    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       (2)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       (1,416)    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       123    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       219    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 342     342    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 123     123    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 342     342    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 123     123    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 342          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 123          
Raleigh, NC - Catawba [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - Catawba [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - 2000 CentreGreen [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,529    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       (391)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       11,011    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,138    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       11,011    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 12,149     12,149    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,775     5,775    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 12,149     12,149    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,775     5,775    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 12,149          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 5,775          
Raleigh, NC - 2000 CentreGreen [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - 2000 CentreGreen [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - 4000 CentreGreen [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,653    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       (389)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       10,316    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,264    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       10,316    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 11,580     11,580    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,368     4,368    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 11,580     11,580    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,368     4,368    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 11,580          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 4,368          
Raleigh, NC - 4000 CentreGreen [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - 4000 CentreGreen [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - 5000 CentreGreen [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,291    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       34,572    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,291    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       34,572    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 35,863     35,863    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,534     1,534    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 35,863     35,863    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,534     1,534    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 35,863          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,534          
Raleigh, NC - 5000 CentreGreen [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - 5000 CentreGreen [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - 3000 CentreGreen [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,779    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       (397)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       13,966    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,382    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       13,966    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 15,348     15,348    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,072     4,072    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 15,348     15,348    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,072     4,072    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 15,348          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 4,072          
Raleigh, NC - 3000 CentreGreen [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - 3000 CentreGreen [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - 1000 CentreGreen [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,280    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       55    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       10,851    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,335    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       10,851    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 12,186     12,186    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,782     2,782    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 12,186     12,186    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,782     2,782    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 12,186          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 2,782          
Raleigh, NC - 1000 CentreGreen [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - 1000 CentreGreen [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - Cottonwood [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       609    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       3,244    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       463    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       609    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       3,707    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 4,316     4,316    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,253     2,253    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 4,316     4,316    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,253     2,253    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 4,316          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 2,253          
Raleigh, NC - Cottonwood [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - Cottonwood [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - Dogwood [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       766    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       2,769    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       248    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       766    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       3,017    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 3,783     3,783    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,781     1,781    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 3,783     3,783    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,781     1,781    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 3,783          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,781          
Raleigh, NC - Dogwood [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - Dogwood [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - GlenLake - Land [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       13,003    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       (8,359)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       114    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       4,644    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       114    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 4,758     4,758    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 50     50    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 4,758     4,758    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 50     50    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 4,758          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 50          
Raleigh, NC - GlenLake - Land [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - GlenLake - Land [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - GlenLake One [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       924    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       1,324    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       21,544    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,248    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       21,544    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 23,792     23,792    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,598     8,598    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 23,792     23,792    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,598     8,598    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 23,792          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 8,598          
Raleigh, NC - GlenLake One [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - GlenLake One [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - GlenLake Four [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,659    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       493    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       21,032    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,152    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       21,032    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 23,184     23,184    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,142     7,142    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 23,184     23,184    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,142     7,142    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 23,184          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 7,142          
Raleigh, NC - GlenLake Four [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - GlenLake Four [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - GlenLake Six [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       941    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       (365)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       20,088    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       576    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       20,088    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 20,664     20,664    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,380     5,380    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 20,664     20,664    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,380     5,380    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 20,664          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 5,380          
Raleigh, NC - GlenLake Six [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - GlenLake Six [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - 701 Raleigh Corporate Center [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,304    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       540    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       15,213    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,844    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       15,213    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 17,057     17,057    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,471     7,471    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 17,057     17,057    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,471     7,471    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 17,057          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 7,471          
Raleigh, NC - 701 Raleigh Corporate Center [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - 701 Raleigh Corporate Center [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - Highwoods Centre [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       531    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       (267)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       8,028    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       264    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       8,028    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 8,292     8,292    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,810     3,810    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 8,292     8,292    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,810     3,810    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 8,292          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,810          
Raleigh, NC - Highwoods Centre [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - Highwoods Centre [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - Inveresk Parcel 2 - Land [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       657    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       38    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       103    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       695    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       103    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 798     798    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9     9    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 798     798    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9     9    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 798          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 9          
Raleigh, NC - Inveresk Parcel 2 - Land [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - Inveresk Parcel 2 - Land [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - 4201 Lake Boone Trail [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,450    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       6,311    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       634    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,450    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       6,945    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 8,395     8,395    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,625     1,625    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 8,395     8,395    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,625     1,625    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 8,395          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,625          
Raleigh, NC - 4201 Lake Boone Trail [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - 4201 Lake Boone Trail [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - 4620 Creekstone Drive [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       149    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       107    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       3,091    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       256    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       3,091    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 3,347     3,347    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,325     1,325    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 3,347     3,347    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,325     1,325    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 3,347          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,325          
Raleigh, NC - 4620 Creekstone Drive [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - 4620 Creekstone Drive [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - 4825 Creekstone Drive [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       398    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       293    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       11,325    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       691    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       11,325    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 12,016     12,016    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,321     5,321    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 12,016     12,016    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,321     5,321    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 12,016          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 5,321          
Raleigh, NC - 4825 Creekstone Drive [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - 4825 Creekstone Drive [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - Pamlico [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       289    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       10,478    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       289    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       10,478    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 10,767     10,767    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,166     8,166    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 10,767     10,767    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,166     8,166    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 10,767          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 8,166          
Raleigh, NC - Pamlico [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - Pamlico [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - Progress Center Renovation [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       3    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       3    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 3     3    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2     2    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 3     3    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2     2    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 3          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 2          
Raleigh, NC - Progress Center Renovation [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - Progress Center Renovation [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - 751 Corporate Center [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,211    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       1,454    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       15,520    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,665    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       15,520    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 18,185     18,185    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 257     257    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 18,185     18,185    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 257     257    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 18,185          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 257          
Raleigh, NC - 751 Corporate Center [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - 751 Corporate Center [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - PNC Plaza [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,206    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       70,992    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,206    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       70,992    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 72,198     72,198    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 23,054     23,054    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 72,198     72,198    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 23,054     23,054    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 72,198          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 23,054          
Raleigh, NC - PNC Plaza [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - PNC Plaza [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - 4301 Lake Boone Trail [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       878    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       3,730    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       2,269    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       878    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       5,999    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 6,877     6,877    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,535     3,535    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 6,877     6,877    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,535     3,535    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 6,877          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,535          
Raleigh, NC - 4301 Lake Boone Trail [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - 4301 Lake Boone Trail [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - 4207 Lake Boone Trail [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       362    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       1,818    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       1,421    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       362    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       3,239    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 3,601     3,601    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,791     1,791    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 3,601     3,601    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,791     1,791    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 3,601          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,791          
Raleigh, NC - 4207 Lake Boone Trail [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - 4207 Lake Boone Trail [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - 2301 Rexwoods Drive [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       919    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       2,816    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       1,759    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       919    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       4,575    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 5,494     5,494    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,413     2,413    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 5,494     5,494    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,413     2,413    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 5,494          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 2,413          
Raleigh, NC - 2301 Rexwoods Drive [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - 2301 Rexwoods Drive [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - 4325 Lake Boone Trail [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       586    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       4,465    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       586    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       4,465    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 5,051     5,051    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,159     2,159    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 5,051     5,051    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,159     2,159    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 5,051          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 2,159          
Raleigh, NC - 4325 Lake Boone Trail [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - 4325 Lake Boone Trail [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - 2300 Rexwoods Drive [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,301    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       184    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       6,515    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,485    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       6,515    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 8,000     8,000    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,161     3,161    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 8,000     8,000    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,161     3,161    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 8,000          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,161          
Raleigh, NC - 2300 Rexwoods Drive [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - 2300 Rexwoods Drive [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - 4709 Creekstone Drive [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       469    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       4,038    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       23    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       5,277    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       492    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       9,315    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 9,807     9,807    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,423     2,423    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 9,807     9,807    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,423     2,423    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 9,807          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 2,423          
Raleigh, NC - 4709 Creekstone Drive [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - 4709 Creekstone Drive [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - 4700 Six Forks Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       666    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       2,665    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       1,427    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       666    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       4,092    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 4,758     4,758    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,328     2,328    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 4,758     4,758    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,328     2,328    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 4,758          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 2,328          
Raleigh, NC - 4700 Six Forks Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - 4700 Six Forks Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - 4700 Homewood Court [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,086    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       4,533    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       2,106    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,086    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       6,639    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 7,725     7,725    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,488     3,488    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 7,725     7,725    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,488     3,488    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 7,725          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,488          
Raleigh, NC - 4700 Homewood Court [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - 4700 Homewood Court [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - 4800 Six Forks Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       862    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       4,411    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       2,391    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       862    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       6,802    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 7,664     7,664    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,803     3,803    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 7,664     7,664    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,803     3,803    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 7,664          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,803          
Raleigh, NC - 4800 Six Forks Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - 4800 Six Forks Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - Smoketree Tower [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,353    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       11,743    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       6,967    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,353    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       18,710    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 21,063     21,063    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,794     9,794    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 21,063     21,063    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,794     9,794    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 21,063          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 9,794          
Raleigh, NC - Smoketree Tower [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - Smoketree Tower [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - 4601 Creekstone Drive [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       255    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       217    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       6,288    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       472    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       6,288    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 6,760     6,760    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,176     3,176    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 6,760     6,760    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,176     3,176    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 6,760          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,176          
Raleigh, NC - 4601 Creekstone Drive [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - 4601 Creekstone Drive [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - Weston - Land [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       22,771    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       (19,894)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,877    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 2,877     2,877    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 2,877     2,877    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 2,877          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 0          
Raleigh, NC - 4625 Creekstone Drive [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       458    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       268    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       6,410    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       726    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       6,410    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 7,136     7,136    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,440     3,440    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 7,136     7,136    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,440     3,440    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 7,136          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,440          
Raleigh, NC - 4625 Creekstone Drive [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - 4625 Creekstone Drive [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - 11000 Weston Parkway [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,651    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       18,850    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       4,934    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,651    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       23,784    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 26,435     26,435    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,106     3,106    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 26,435     26,435    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,106     3,106    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 26,435          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,106          
Raleigh, NC - 11000 Weston Parkway [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - 11000 Weston Parkway [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - GlenLake Five [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,263    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       30,264    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       3,530    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,263    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       33,794    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 36,057     36,057    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,482     5,482    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 36,057     36,057    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,482     5,482    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 36,057          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 5,482          
Raleigh, NC - GlenLake Five [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - GlenLake Five [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - 11800 Weston Parkway [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       826    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       13,188    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       21    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       826    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       13,209    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 14,035     14,035    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,831     1,831    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 14,035     14,035    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,831     1,831    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 14,035          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,831          
Raleigh, NC - 11800 Weston Parkway [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - 11800 Weston Parkway [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - CentreGreen Cafe [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       41    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       3,509    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       41    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       3,509    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 3,550     3,550    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 360     360    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 3,550     3,550    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 360     360    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 3,550          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 360          
Raleigh, NC - CentreGreen Cafe [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - CentreGreen Cafe [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - CentreGreen Fitness Center [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       27    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       2,322    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       27    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       2,322    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 2,349     2,349    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 238     238    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 2,349     2,349    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 238     238    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 2,349          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 238          
Raleigh, NC - CentreGreen Fitness Center [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - CentreGreen Fitness Center [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - One City Plaza [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       11,288    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       68,375    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       23,766    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       11,288    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       92,141    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 103,429     103,429    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,567     12,567    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 103,429     103,429    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,567     12,567    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 103,429          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 12,567          
Raleigh, NC - One City Plaza [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - One City Plaza [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - Edison - Land [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       5,984    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       2,494    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       8,478    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 8,478     8,478    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 8,478     8,478    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 8,478          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 0          
Raleigh, NC - Charter Square [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       7,267    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       65,881    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       4,809    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       7,267    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       70,690    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 77,957     77,957    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,067     5,067    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 77,957     77,957    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,067     5,067    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 77,957          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 5,067          
Raleigh, NC - Charter Square [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - Charter Square [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - Metlife Global Technology Campus [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       17,044    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       88,137    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       345    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       17,044    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       88,482    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 105,526     105,526    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,558     10,558    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 105,526     105,526    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,558     10,558    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 105,526          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 10,558          
Raleigh, NC - Metlife Global Technology Campus [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - Metlife Global Technology Campus [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Raleigh, NC - Other Property [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       39,376    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       20,868    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       (32,414)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       (106)    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       6,962    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       20,762    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 27,724     27,724    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 11,145     11,145    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 27,724     27,724    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 11,145     11,145    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 27,724          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 11,145          
Raleigh, NC - Other Property [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Raleigh, NC - Other Property [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Richmond, VA - 4900 Cox Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,324    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       5,311    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       15    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       3,110    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,339    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       8,421    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 9,760     9,760    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,717     4,717    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 9,760     9,760    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,717     4,717    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 9,760          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 4,717          
Richmond, VA - 4900 Cox Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Richmond, VA - 4900 Cox Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Richmond, VA - Colonnade Building [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,364    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       6,105    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       2,461    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,364    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       8,566    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 9,930     9,930    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,332     3,332    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 9,930     9,930    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,332     3,332    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 9,930          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,332          
Richmond, VA - Colonnade Building [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Richmond, VA - Colonnade Building [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Richmond, VA - Dominion Place - Pitts Parcel - Land [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,101    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       (343)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       758    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 758     758    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 758     758    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 758          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 0          
Richmond, VA - Markel 4521 [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,581    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       13,299    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       168    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       (879)    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,749    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       12,420    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 14,169     14,169    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,501     5,501    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 14,169     14,169    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,501     5,501    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 14,169          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 5,501          
Richmond, VA - Markel 4521 [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Richmond, VA - Markel 4521 [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Richmond, VA - Hamilton Beach [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,086    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       4,345    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       10    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       2,722    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,096    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       7,067    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 8,163     8,163    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,269     3,269    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 8,163     8,163    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,269     3,269    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 8,163          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,269          
Richmond, VA - Hamilton Beach [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Richmond, VA - Hamilton Beach [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Richmond, VA - Highwoods Commons [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       521    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       458    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       4,276    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       979    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       4,276    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 5,255     5,255    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,875     1,875    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 5,255     5,255    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,875     1,875    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 5,255          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,875          
Richmond, VA - Highwoods Commons [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Richmond, VA - Highwoods Commons [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Richmond, VA - Highwoods One [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,688    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       22    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       14,330    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,710    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       14,330    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 16,040     16,040    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,771     6,771    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 16,040     16,040    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,771     6,771    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 16,040          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 6,771          
Richmond, VA - Highwoods One [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Richmond, VA - Highwoods One [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Richmond, VA - Highwoods Two [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       786    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       226    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       9,632    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,012    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       9,632    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 10,644     10,644    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,114     3,114    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 10,644     10,644    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,114     3,114    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 10,644          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,114          
Richmond, VA - Highwoods Two [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Richmond, VA - Highwoods Two [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Richmond, VA - Highwoods Five [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       783    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       11    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       7,478    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       794    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       7,478    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 8,272     8,272    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,115     3,115    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 8,272     8,272    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,115     3,115    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 8,272          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,115          
Richmond, VA - Highwoods Five [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Richmond, VA - Highwoods Five [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Richmond, VA - Highwoods Plaza [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       909    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       187    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       5,437    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,096    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       5,437    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 6,533     6,533    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,447     2,447    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 6,533     6,533    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,447     2,447    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 6,533          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 2,447          
Richmond, VA - Highwoods Plaza [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Richmond, VA - Highwoods Plaza [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Richmond, VA - Innslake Center [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       845    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       195    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       7,892    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,040    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       7,892    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 8,932     8,932    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,874     2,874    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 8,932     8,932    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,874     2,874    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 8,932          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 2,874          
Richmond, VA - Innslake Center [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Richmond, VA - Innslake Center [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Richmond, VA - Highwoods Centre [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,205    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       4,825    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       1,215    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,205    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       6,040    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 7,245     7,245    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,230     3,230    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 7,245     7,245    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,230     3,230    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 7,245          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,230          
Richmond, VA - Highwoods Centre [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Richmond, VA - Highwoods Centre [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Richmond, VA - Markel 4501 [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,300    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       13,259    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       213    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       (3,720)    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,513    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       9,539    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 11,052     11,052    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,382     3,382    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 11,052     11,052    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,382     3,382    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 11,052          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,382          
Richmond, VA - Markel 4501 [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Richmond, VA - Markel 4501 [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Richmond, VA - 4600 Cox Road [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,700    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       17,081    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       169    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       (3,599)    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,869    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       13,482    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 15,351     15,351    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,757     4,757    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 15,351     15,351    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,757     4,757    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 15,351          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 4,757          
Richmond, VA - 4600 Cox Road [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Richmond, VA - 4600 Cox Road [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Richmond, VA - North Park [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,163    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       8,659    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       6    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       2,940    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,169    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       11,599    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 13,768     13,768    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,170     6,170    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 13,768     13,768    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,170     6,170    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 13,768          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 6,170          
Richmond, VA - North Park [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Richmond, VA - North Park [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Richmond, VA - North Shore Commons I [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       951    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       17    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       12,645    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       968    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       12,645    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 13,613     13,613    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,536     5,536    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 13,613     13,613    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,536     5,536    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 13,613          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 5,536          
Richmond, VA - North Shore Commons I [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Richmond, VA - North Shore Commons I [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Richmond, VA - North Shore Commons II [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,067    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       (89)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       11,074    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,978    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       11,074    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 13,052     13,052    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,345     3,345    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 13,052     13,052    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,345     3,345    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 13,052          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,345          
Richmond, VA - North Shore Commons II [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Richmond, VA - North Shore Commons II [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Richmond, VA - North Shore Commons C - Land [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,497    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       15    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,512    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 1,512     1,512    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 1,512     1,512    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 1,512          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 0          
Richmond, VA - North Shore Commons D - Land [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,261    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,261    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 1,261     1,261    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 1,261     1,261    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 1,261          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 0          
Richmond, VA - Nuckols Corner - Land [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,259    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       203    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,462    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 1,462     1,462    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 1,462     1,462    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 1,462          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 0          
Richmond, VA - One Shockoe Plaza [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       356    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       20,560    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       356    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       20,560    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 20,916     20,916    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,690     8,690    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 20,916     20,916    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,690     8,690    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 20,916          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 8,690          
Richmond, VA - One Shockoe Plaza [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Richmond, VA - One Shockoe Plaza [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Richmond, VA - Pavilion - Land [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       181    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       46    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       20    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       (46)    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       201    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 201     201    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 201     201    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 201          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 0          
Richmond, VA - Lake Brook Commons [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,600    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       8,864    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       21    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       2,211    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,621    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       11,075    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 12,696     12,696    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,446     4,446    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 12,696     12,696    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,446     4,446    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 12,696          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 4,446          
Richmond, VA - Lake Brook Commons [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Richmond, VA - Lake Brook Commons [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Richmond, VA - Sadler & Cox - Land [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,535    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       343    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,878    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 1,878     1,878    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 1,878     1,878    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 1,878          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 0          
Richmond, VA - Highwoods Three [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,918    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       358    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       11,319    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,276    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       11,319    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 13,595     13,595    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,486     3,486    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 13,595     13,595    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,486     3,486    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 13,595          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,486          
Richmond, VA - Highwoods Three [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Richmond, VA - Highwoods Three [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Richmond, VA - Stony Point VI (Virginia Urology) [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,841    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       84    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       25,638    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,925    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       25,638    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 27,563     27,563    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 294     294    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 27,563     27,563    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 294     294    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 27,563          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 294          
Richmond, VA - Stony Point VI (Virginia Urology) [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Richmond, VA - Stony Point VI (Virginia Urology) [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Richmond, VA - Stony Point I [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,384    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       11,630    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       (267)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       4,165    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,117    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       15,795    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 16,912     16,912    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,823     7,823    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 16,912     16,912    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,823     7,823    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 16,912          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 7,823          
Richmond, VA - Stony Point I [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Richmond, VA - Stony Point I [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Richmond, VA - Stony Point II [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,240    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       103    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       12,643    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,343    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       12,643    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 13,986     13,986    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,637     5,637    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 13,986     13,986    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,637     5,637    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 13,986          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 5,637          
Richmond, VA - Stony Point II [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Richmond, VA - Stony Point II [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Richmond, VA - Stony Point III [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       995    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       10,408    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       995    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       10,408    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 11,403     11,403    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,494     4,494    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 11,403     11,403    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,494     4,494    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 11,403          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 4,494          
Richmond, VA - Stony Point III [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Richmond, VA - Stony Point III [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Richmond, VA - Stony Point IV [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       955    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       11,052    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       955    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       11,052    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 12,007     12,007    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,616     3,616    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 12,007     12,007    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,616     3,616    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 12,007          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,616          
Richmond, VA - Stony Point IV [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Richmond, VA - Stony Point IV [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Richmond, VA - Virginia Mutual [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,301    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       6,036    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       15    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       1,492    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,316    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       7,528    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 8,844     8,844    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,512     3,512    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 8,844     8,844    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,512     3,512    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 8,844          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,512          
Richmond, VA - Virginia Mutual [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Richmond, VA - Virginia Mutual [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Richmond, VA - Waterfront Plaza [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       585    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       2,347    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       8    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       1,946    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       593    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       4,293    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 4,886     4,886    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,776     1,776    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 4,886     4,886    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,776     1,776    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 4,886          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,776          
Richmond, VA - Waterfront Plaza [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Richmond, VA - Waterfront Plaza [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Richmond, VA - Innsbrook Centre [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       914    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       8,249    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       1,016    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       914    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       9,265    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 10,179     10,179    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,561     3,561    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 10,179     10,179    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,561     3,561    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 10,179          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,561          
Richmond, VA - Innsbrook Centre [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Richmond, VA - Innsbrook Centre [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Tampa, FL - Meridian Three [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,673    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       16,470    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       6,198    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,673    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       22,668    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 25,341     25,341    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,928     5,928    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 25,341     25,341    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,928     5,928    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 25,341          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 5,928          
Tampa, FL - Meridian Three [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Tampa, FL - Meridian Three [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Tampa, FL - Bayshore Place [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,276    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       11,817    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       3,834    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,276    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       15,651    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 17,927     17,927    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,498     6,498    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 17,927     17,927    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,498     6,498    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 17,927          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 6,498          
Tampa, FL - Bayshore Place [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Tampa, FL - Bayshore Place [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Tampa, FL - 5525 Gray Street [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       4,054    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       406    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       28,198    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       4,460    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       28,198    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 32,658     32,658    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 11,808     11,808    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 32,658     32,658    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 11,808     11,808    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 32,658          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 11,808          
Tampa, FL - 5525 Gray Street [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Tampa, FL - 5525 Gray Street [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Tampa, FL - Highwoods Preserve Building V [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       881    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       23,684    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       881    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       23,684    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 24,565     24,565    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,835     10,835    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 24,565     24,565    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,835     10,835    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 24,565          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 10,835          
Tampa, FL - Highwoods Preserve Building V [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Tampa, FL - Highwoods Preserve Building V [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Tampa, FL - Highwoods Bay Center I [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       3,565    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       (64)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       36,529    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       3,501    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       36,529    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 40,030     40,030    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,116     10,116    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 40,030     40,030    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,116     10,116    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 40,030          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 10,116          
Tampa, FL - Highwoods Bay Center I [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Tampa, FL - Highwoods Bay Center I [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Tampa, FL - HIW Bay Center II - Land [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       3,482    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       3,482    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 3,482     3,482    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 3,482     3,482    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 3,482          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 0          
Tampa, FL - HIW Preserve Building VII [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       790    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       12,498    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       790    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       12,498    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 13,288     13,288    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,678     3,678    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 13,288     13,288    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,678     3,678    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 13,288          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,678          
Tampa, FL - HIW Preserve Building VII [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Tampa, FL - HIW Preserve Building VII [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Tampa, FL - HIW Preserve VII Garage [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       6,797    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       6,797    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 6,797     6,797    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,023     2,023    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 6,797     6,797    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,023     2,023    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 6,797          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 2,023          
Tampa, FL - HIW Preserve VII Garage [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Tampa, FL - HIW Preserve VII Garage [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Tampa, FL - Horizon [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       6,257    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       3,807    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       10,064    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 10,064     10,064    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,633     4,633    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 10,064     10,064    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,633     4,633    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 10,064          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 4,633          
Tampa, FL - Horizon [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Tampa, FL - Horizon [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Tampa, FL - LakePointe One [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,106    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       89    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       44,999    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,106    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       45,088    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 47,194     47,194    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 23,281     23,281    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 47,194     47,194    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 23,281     23,281    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 47,194          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 23,281          
Tampa, FL - LakePointe One [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Tampa, FL - LakePointe One [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Tampa, FL - LakePointe Two [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,000    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       15,848    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       672    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       15,689    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,672    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       31,537    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 34,209     34,209    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 14,301     14,301    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 34,209     34,209    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 14,301     14,301    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 34,209          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 14,301          
Tampa, FL - LakePointe Two [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Tampa, FL - LakePointe Two [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Tampa, FL - Lakeside [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       7,369    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       7,139    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       14,508    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 14,508     14,508    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,023     6,023    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 14,508     14,508    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,023     6,023    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 14,508          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 6,023          
Tampa, FL - Lakeside [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Tampa, FL - Lakeside [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Tampa, FL - Lakeside/Parkside Garage [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       5,630    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       5,630    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 5,630     5,630    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,972     1,972    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 5,630     5,630    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,972     1,972    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 5,630          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,972          
Tampa, FL - Lakeside/Parkside Garage [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Tampa, FL - Lakeside/Parkside Garage [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Tampa, FL - One Harbour Place [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,016    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       25,252    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       12,157    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,016    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       37,409    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 39,425     39,425    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 15,625     15,625    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 39,425     39,425    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 15,625     15,625    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 39,425          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 15,625          
Tampa, FL - One Harbour Place [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Tampa, FL - One Harbour Place [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Tampa, FL - Parkside [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       9,407    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       4,049    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       13,456    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 13,456     13,456    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,384     7,384    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 13,456     13,456    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,384     7,384    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 13,456          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 7,384          
Tampa, FL - Parkside [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Tampa, FL - Parkside [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Tampa, FL - Pavilion [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       16,394    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       4,355    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       20,749    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 20,749     20,749    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,942     10,942    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 20,749     20,749    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,942     10,942    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 20,749          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 10,942          
Tampa, FL - Pavilion [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Tampa, FL - Pavilion [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Tampa, FL - Pavilion Parking Garage [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       5,734    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       5,734    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 5,734     5,734    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,734     2,734    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 5,734     5,734    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,734     2,734    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 5,734          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 2,734          
Tampa, FL - Pavilion Parking Garage [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Tampa, FL - Pavilion Parking Garage [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Tampa, FL - Spectrum [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,454    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       14,502    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       6,806    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,454    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       21,308    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 22,762     22,762    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,289     12,289    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 22,762     22,762    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,289     12,289    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 22,762          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 12,289          
Tampa, FL - Spectrum [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Tampa, FL - Spectrum [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Tampa, FL - Tower Place [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       3,218    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       19,898    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       4,294    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       3,218    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       24,192    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 27,410     27,410    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 13,046     13,046    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 27,410     27,410    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 13,046     13,046    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 27,410          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 13,046          
Tampa, FL - Tower Place [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Tampa, FL - Tower Place [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Tampa, FL - Westshore Square [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,126    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       5,186    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       1,143    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,126    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       6,329    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 7,455     7,455    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,239     3,239    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 7,455     7,455    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,239     3,239    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 7,455          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,239          
Tampa, FL - Westshore Square [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Tampa, FL - Westshore Square [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Tampa, FL - Independence Park - Land [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       4,943    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       4,891    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       2,234    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       9,834    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       2,234    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 12,068     12,068    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 102     102    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 12,068     12,068    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 102     102    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 12,068          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 102          
Tampa, FL - Independence Park - Land [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Tampa, FL - Independence Park - Land [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Tampa, FL - Independence One [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,531    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       4,526    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       5,519    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,531    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       10,045    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 12,576     12,576    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,887     3,887    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 12,576     12,576    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,887     3,887    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 12,576          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 3,887          
Tampa, FL - Independence One [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Tampa, FL - Independence One [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Tampa, FL - Meridian One [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,849    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       22,363    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       2,076    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,849    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       24,439    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 26,288     26,288    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,533     4,533    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 26,288     26,288    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,533     4,533    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 26,288          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 4,533          
Tampa, FL - Meridian One [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Tampa, FL - Meridian One [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Tampa, FL - Meridian Two [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,302    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       19,588    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       3,252    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,302    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       22,840    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 24,142     24,142    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,314     4,314    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 24,142     24,142    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,314     4,314    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 24,142          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 4,314          
Tampa, FL - Meridian Two [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Tampa, FL - Meridian Two [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Tampa, FL - Laser Spine Institute [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       6,310    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       44,655    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       6,310    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       44,655    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 50,965     50,965    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,401     4,401    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 50,965     50,965    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,401     4,401    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 50,965          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 4,401          
Tampa, FL - Laser Spine Institute [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Tampa, FL - Laser Spine Institute [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Tampa, FL - Suntrust Financial Centre [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       1,980    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       102,138    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       14,989    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,980    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       117,127    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 119,107     119,107    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,240     12,240    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 119,107     119,107    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,240     12,240    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 119,107          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 12,240          
Tampa, FL - Suntrust Financial Centre [Member] | Minimum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Tampa, FL - Suntrust Financial Centre [Member] | Maximum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Tampa, FL - Suntrust Financial - Land [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       2,225    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,225    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       0    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets $ 2,225     2,225    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 2,225     2,225    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0     0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 2,225          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 0          
Total Real Estate and Accumulated Depreciation [Member]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land       603,359    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       2,993,752    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       16,330    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       1,683,110    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       619,689    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       4,676,862    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 5,296,551     5,296,551    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,296,562     1,296,562    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 5,296,551     5,296,551    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,296,562     $ 1,296,562    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 5,296,551          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,296,562