HIGHWOODS PROPERTIES, INC., 10-K filed on 2/4/2020
Annual Report
v3.19.3.a.u2
Cover Page - USD ($)
$ in Billions
12 Months Ended
Dec. 31, 2019
Jan. 24, 2020
Jun. 30, 2019
Entity Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2019    
Document Transition Report false    
Entity Registrant Name HIGHWOODS PROPERTIES, INC.    
Entity Incorporation, State or Country Code MD    
Entity File Number 001-13100    
Entity Tax Identification Number 56-1871668    
Entity Address, Address Line One 3100 Smoketree Court    
Entity Address, Address Line Two Suite 600    
Entity Address, City or Town Raleigh    
Entity Address, State or Province NC    
Entity Address, Postal Zip Code 27604    
City Area Code 919    
Local Phone Number 872-4924    
Title of 12(b) Security Common Stock, $.01 par value, of Highwoods Properties, Inc.    
Trading Symbol HIW    
Security Exchange Name NYSE    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Public Float     $ 4.2
Entity Common Stock, Shares Outstanding   103,783,857  
Entity Central Index Key 0000921082    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2019    
Document Fiscal Period Focus FY    
Amendment Flag false    
Highwoods Realty Limited Partnership [Member]      
Entity Information [Line Items]      
Entity Registrant Name HIGHWOODS REALTY LIMITED PARTNERSHIP    
Entity Incorporation, State or Country Code NC    
Entity File Number 000-21731    
Entity Tax Identification Number 56-1869557    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Central Index Key 0000941713    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2019    
Document Fiscal Period Focus FY    
Amendment Flag false    
v3.19.3.a.u2
Consolidated Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Real estate assets, at cost:    
Land $ 515,095 $ 491,441
Buildings and tenant improvements 5,128,150 4,676,862
Development in-process 172,706 165,537
Land held for development 99,163 128,248
Total real estate assets 5,915,114 5,462,088
Less-accumulated depreciation (1,388,566) (1,296,562)
Net real estate assets 4,526,548 4,165,526
Real estate and other assets, net, held for sale 20,790 0
Cash and cash equivalents 9,505 3,769
Restricted cash 5,237 6,374
Accounts receivable 23,370 25,952
Mortgages and notes receivable, net of allowance of $0 and $44, respectively 1,501 5,599
Accrued straight-line rents receivable 234,652 220,088
Investments in and advances to unconsolidated affiliates 26,298 23,585
Deferred leasing costs, net of accumulated amortization of $146,125 and $149,275, respectively 231,347 195,273
Prepaid expenses and other assets, net of accumulated depreciation of $20,017 and $18,074, respectively 58,996 28,843
Total Assets 5,138,244 4,675,009
Liabilities, Noncontrolling Interests in the Operating Partnership and Equity/Liabilities, Redeemable Operating Partnership Units and Capital:    
Mortgages and notes payable, net 2,543,710 2,085,831
Accounts payable, accrued expenses and other liabilities 286,911 218,922
Total Liabilities 2,830,621 2,304,753
Commitments and contingencies
Noncontrolling interests in the Operating Partnership 133,216 105,960
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), 28,859 and 28,877 shares issued and outstanding, respectively 28,859 28,877
Common Stock, $.01 par value, 200,000,000 authorized shares; 103,756,046 and 103,557,065 shares issued and outstanding, respectively 1,038 1,036
Additional paid-in capital 2,954,779 2,976,197
Distributions in excess of net income available for common stockholders (831,808) (769,303)
Accumulated other comprehensive income/(loss) (471) 9,913
Total Stockholders’ Equity 2,152,397 2,246,720
Noncontrolling interests in consolidated affiliates 22,010 17,576
Total Equity/Capital: 2,174,407 2,264,296
Total Liabilities, Noncontrolling Interests in the Operating Partnership and Equity/Total Liabilities, Redeemable Operating Partnership Units and Capital 5,138,244 4,675,009
Highwoods Realty Limited Partnership [Member]    
Real estate assets, at cost:    
Land 515,095 491,441
Buildings and tenant improvements 5,128,150 4,676,862
Development in-process 172,706 165,537
Land held for development 99,163 128,248
Total real estate assets 5,915,114 5,462,088
Less-accumulated depreciation (1,388,566) (1,296,562)
Net real estate assets 4,526,548 4,165,526
Real estate and other assets, net, held for sale 20,790 0
Cash and cash equivalents 9,505 3,769
Restricted cash 5,237 6,374
Accounts receivable 23,370 25,952
Mortgages and notes receivable, net of allowance of $0 and $44, respectively 1,501 5,599
Accrued straight-line rents receivable 234,652 220,088
Investments in and advances to unconsolidated affiliates 26,298 23,585
Deferred leasing costs, net of accumulated amortization of $146,125 and $149,275, respectively 231,347 195,273
Prepaid expenses and other assets, net of accumulated depreciation of $20,017 and $18,074, respectively 58,996 28,843
Total Assets 5,138,244 4,675,009
Liabilities, Noncontrolling Interests in the Operating Partnership and Equity/Liabilities, Redeemable Operating Partnership Units and Capital:    
Mortgages and notes payable, net 2,543,710 2,085,831
Accounts payable, accrued expenses and other liabilities 286,911 218,922
Total Liabilities 2,830,621 2,304,753
Commitments and contingencies
Redeemable Operating Partnership Units:    
Common Units, 2,723,703 and 2,738,703 outstanding, respectively 133,216 105,960
Series A Preferred Units (liquidation preference $1,000 per unit), 28,859 and 28,877 units issued and outstanding, respectively 28,859 28,877
Total Redeemable Operating Partnership Units 162,075 134,837
Equity/Capital:    
General partner Common Units, 1,060,709 and 1,058,870 outstanding, respectively 21,240 22,078
Limited partner Common Units, 102,286,528 and 102,089,386 outstanding, respectively 2,102,769 2,185,852
Accumulated other comprehensive income/(loss) (471) 9,913
Noncontrolling interests in consolidated affiliates 22,010 17,576
Total Equity/Capital: 2,145,548 2,235,419
Total Liabilities, Noncontrolling Interests in the Operating Partnership and Equity/Total Liabilities, Redeemable Operating Partnership Units and Capital $ 5,138,244 $ 4,675,009
v3.19.3.a.u2
Consolidated Balance Sheets (Parentheticals) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Assets:    
Mortgages and notes receivable allowance $ 0 $ 44
Deferred leasing costs, accumulated amortization 146,125 149,275
Prepaid expenses and other assets, accumulated amortization $ 20,017 $ 18,074
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) 28,859 28,877
Preferred Stock, shares outstanding (in shares) 29,000 29,000
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) 103,756,046 103,557,065
Common Stock, shares outstanding (in shares) 103,756,046 103,557,065
Highwoods Realty Limited Partnership [Member]    
Assets:    
Mortgages and notes receivable allowance $ 0 $ 44
Deferred leasing costs, accumulated amortization 146,125 149,275
Prepaid expenses and other assets, accumulated amortization $ 20,017 $ 18,074
Redeemable Operating Partnership Units:    
Redeemable Common Units, outstanding (in shares) 2,723,703 2,738,703
Preferred Units liquidation preference (in dollars per share) $ 1,000 $ 1,000
Series A Preferred Units, issued (in shares) 28,859 28,877
Series A Preferred Units, outstanding (in shares) 29,000 29,000
Common Units:    
General partners' capital account, units outstanding (in shares) 1,060,709 1,058,870
Limited partners' capital account, units outstanding (in shares) 102,286,528 102,089,386
v3.19.3.a.u2
Consolidated Statements of Income - USD ($)
shares in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Rental and other revenues $ 735,979 $ 720,035 $ 702,737
Operating expenses:      
Rental property and other expenses 248,511 242,415 236,888
Depreciation and amortization 254,504 229,955 227,832
Impairments of real estate assets 5,849 423 1,445
General and administrative 44,067 40,006 39,648
Total operating expenses 552,931 512,799 505,813
Interest expense 81,648 71,422 69,105
Other income/(loss) (2,510) 1,940 2,283
Gains on disposition of property 39,517 37,638 54,157
Equity in earnings of unconsolidated affiliates 3,276 2,238 7,404
Net income 141,683 177,630 191,663
Net (income) attributable to noncontrolling interests in the Operating Partnership (3,551) (4,588) (5,059)
Net (income) attributable to noncontrolling interests in consolidated affiliates (1,214) (1,207) (1,239)
Dividends on Preferred Stock (2,488) (2,492) (2,492)
Net income available for common stockholders $ 134,430 $ 169,343 $ 182,873
Earnings per Common Share - basic:      
Net income available for common stockholders (in dollars per share) $ 1.30 $ 1.64 $ 1.78
Weighted average Common Shares outstanding - basic (in shares) 103,692 103,439 102,682
Earnings per Common Share - diluted:      
Net income available for common stockholders (in dollars per share) $ 1.30 $ 1.64 $ 1.78
Weighted average Common Shares outstanding - diluted (in shares) 106,445 106,268 105,594
Highwoods Realty Limited Partnership [Member]      
Rental and other revenues $ 735,979 $ 720,035 $ 702,737
Operating expenses:      
Rental property and other expenses 248,511 242,415 236,888
Depreciation and amortization 254,504 229,955 227,832
Impairments of real estate assets 5,849 423 1,445
General and administrative 44,067 40,006 39,648
Total operating expenses 552,931 512,799 505,813
Interest expense 81,648 71,422 69,105
Other income/(loss) (2,510) 1,940 2,283
Gains on disposition of property 39,517 37,638 54,157
Equity in earnings of unconsolidated affiliates 3,276 2,238 7,404
Net income 141,683 177,630 191,663
Net (income) attributable to noncontrolling interests in consolidated affiliates (1,214) (1,207) (1,239)
Distributions on Preferred Units (2,488) (2,492) (2,492)
Net income available for common unitholders $ 137,981 $ 173,931 $ 187,932
Earnings per Common Unit - basic:      
Net income available for common unitholders (in dollars per share) $ 1.30 $ 1.64 $ 1.79
Weighted average Common Units outstanding - basic (in shares) 106,014 105,826 105,106
Earnings per Common Unit - diluted:      
Net income available for common unitholders (in dollars per share) $ 1.30 $ 1.64 $ 1.79
Weighted average Common Units outstanding - diluted (in shares) 106,036 105,859 105,185
v3.19.3.a.u2
Consolidated Statements of Comprehensive Income - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Comprehensive income:      
Net income $ 141,683 $ 177,630 $ 191,663
Other comprehensive income/(loss):      
Unrealized gains/(losses) on cash flow hedges (9,134) 4,161 1,732
Amortization of cash flow hedges (1,250) (2,086) 1,157
Total other comprehensive income/(loss) (10,384) 2,075 2,889
Total comprehensive income 131,299 179,705 194,552
Less-comprehensive (income) attributable to noncontrolling interests (4,765) (5,795) (6,298)
Comprehensive income attributable to common stockholders/unitholders 126,534 173,910 188,254
Highwoods Realty Limited Partnership [Member]      
Comprehensive income:      
Net income 141,683 177,630 191,663
Other comprehensive income/(loss):      
Unrealized gains/(losses) on cash flow hedges (9,134) 4,161 1,732
Amortization of cash flow hedges (1,250) (2,086) 1,157
Total other comprehensive income/(loss) (10,384) 2,075 2,889
Total comprehensive income 131,299 179,705 194,552
Less-comprehensive (income) attributable to noncontrolling interests (1,214) (1,207) (1,239)
Comprehensive income attributable to common stockholders/unitholders $ 130,085 $ 178,498 $ 193,313
v3.19.3.a.u2
Consolidated Statements of Equity - USD ($)
$ in Thousands
Total
Highwoods Realty Limited Partnership [Member]
Common Stock [Member]
Series A Cumulative Redeemable Preferred Shares [Member]
General Partner Common Units [Member]
Highwoods Realty Limited Partnership [Member]
Limited Partner Common Units [Member]
Highwoods Realty Limited Partnership [Member]
Additional Paid-In Capital [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Highwoods Realty Limited Partnership [Member]
Noncontrolling Interests in Consolidated Affiliates [Member]
Noncontrolling Interests in Consolidated Affiliates [Member]
Highwoods Realty Limited Partnership [Member]
Distributions in Excess of Net Income Available for Common Stockholders [Member]
Balance (in shares) at Dec. 31, 2016     101,665,554                  
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)
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/(loss) 2,889 2,889 $ 0 0 0 0 0 2,889 2,889 0 0 0
Total comprehensive income 194,552 194,552                    
Balance (in shares) at Dec. 31, 2017     103,266,875                  
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)
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/(loss) 2,075 2,075 $ 0 0 0 0 0 2,075 2,075 0 0 0
Total comprehensive income $ 179,705 179,705                    
Balance (in shares) at Dec. 31, 2018 103,557,065   103,557,065                  
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)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                        
Issuances of Common Units, net of issuance costs and tax withholdings   298     3 295     0   0  
Distributions on Common Units   (201,347)     (2,013) (199,334)     0   0  
Distributions on Preferred Units   (2,488)     (25) (2,463)     0   0  
Issuances of Common Stock - Shares     (143)                  
Issuances of Common Stock, net of issuance costs and tax withholdings 298   $ 0 0     298 0   0   0
Conversions of Common Units to Common Stock - Shares     15,000                  
Conversions of Common Units to Common Stock 663   $ 0 0     663 0   0   0
Dividends on Common Stock (196,935)   0 0     0 0   0   (196,935)
Dividends on Preferred Stock (2,488)   0 0     0 0   0   (2,488)
Adjustment of noncontrolling interests in the Operating Partnership to fair value (29,557)   0 0     (29,557) 0   0   0
Distributions to noncontrolling interests in consolidated affiliates (1,767) (1,767) 0 0 0 0 0 0 0 (1,767) (1,767) 0
Contributions from noncontrolling interests in consolidated affiliates 4,987 4,987 $ 0 0 0 0 0 0 0 4,987 4,987 0
Issuances of restricted stock - Shares     190,934                  
Issuances of restricted stock 0   $ 0 0     0 0   0   0
Redemptions/repurchases of Preferred Stock (18)   $ 0 (18)     0 0   0   0
Share-based compensation expense, net of forfeitures - Shares     (6,810)                  
Share-based compensation expense, net of forfeitures 7,180 7,180 $ 2 0 72 7,108 7,178 0 0 0 0 0
Adjustment of Redeemable Common Units to fair value and contributions/distributions from/to the General Partner   (28,033)     (280) (27,753)     0   0  
Net (income) attributable to noncontrolling interests in the Operating Partnership (3,551)   0 0     0 0   0   (3,551)
Net (income) attributable to noncontrolling interests in consolidated affiliates 0 0 0 0 (12) (1,202) 0 0 0 1,214 1,214 (1,214)
Comprehensive income:                        
Net income 141,683 141,683 0 0 1,417 140,266 0 0 0 0 0 141,683
Other comprehensive income/(loss) (10,384) (10,384) $ 0 0 0 0 0 (10,384) (10,384) 0 0 0
Total comprehensive income $ 131,299 131,299                    
Balance (in shares) at Dec. 31, 2019 103,756,046   103,756,046                  
Balance at Dec. 31, 2019 $ 2,174,407 $ 2,145,548 $ 1,038 $ 28,859 $ 21,240 $ 2,102,769 $ 2,954,779 $ (471) $ (471) $ 22,010 $ 22,010 $ (831,808)
v3.19.3.a.u2
Consolidated Statements of Equity (Parentheticals) - $ / shares
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
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) 1.90 1.85 1.76
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) 1.90 1.85 1.76
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
v3.19.3.a.u2
Consolidated Statements of Cash Flows
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Operating activities:      
Net income $ 141,683 $ 177,630 $ 191,663
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization 254,504 229,955 227,832
Amortization of lease incentives and acquisition-related intangible assets and liabilities (505) (1,943) (1,172)
Share-based compensation expense 7,180 7,466 6,692
Credit losses on operating lease receivables 9,861 1,212 1,508
Write-off of mortgages and notes receivable 4,087 0 0
Accrued interest on mortgages and notes receivable (184) (451) (509)
Amortization of debt issuance costs 2,970 2,857 3,166
Amortization of cash flow hedges (1,250) (2,086) 1,157
Amortization of mortgages and notes payable fair value adjustments 1,619 1,449 705
Impairments of real estate assets 5,849 423 1,445
Losses on debt extinguishment 640 0 26
Net gains on disposition of property (39,517) (37,638) (54,157)
Equity in earnings of unconsolidated affiliates (3,276) (2,238) (7,404)
Distributions of earnings from unconsolidated affiliates 1,149 2,104 5,078
Settlement of cash flow hedges (11,749) 7,216 7,322
Changes in operating assets and liabilities:      
Accounts receivable (3,271) 1,759 (4,974)
Prepaid expenses and other assets 1,610 1,217 7,908
Accrued straight-line rents receivable (29,828) (23,203) (32,234)
Accounts payable, accrued expenses and other liabilities 24,225 (7,101) (1,520)
Net cash provided by operating activities 365,797 358,628 352,532
Investing activities:      
Investments in acquired real estate and related intangible assets, net of cash acquired (424,222) (50,649) (1,840)
Investments in development in-process (116,111) (150,310) (150,944)
Investments in tenant improvements and deferred leasing costs (138,754) (121,534) (109,742)
Investments in building improvements (53,826) (68,256) (63,780)
Net proceeds from disposition of real estate assets 133,326 88,813 129,503
Distributions of capital from unconsolidated affiliates 7,833 105 11,670
Repayments of mortgages and notes receivable 295 1,312 2,917
Investments in and advances to unconsolidated affiliates (9,977) 0 (10,063)
Changes in other investing activities (5,971) (6,230) (8,023)
Net cash used in investing activities (607,407) (306,749) (200,302)
Financing activities:      
Dividends on Common Stock (196,935) (191,302) (180,805)
Special dividend on Common Stock 0 0 (81,205)
Redemptions/repurchases of Preferred Stock (18) (15) (28)
Dividends on Preferred Stock (2,488) (2,492) (2,492)
Distributions to noncontrolling interests in the Operating Partnership (5,189) (5,167) (4,987)
Special distribution to noncontrolling interests in the Operating Partnership 0 0 (2,271)
Distributions to noncontrolling interests in consolidated affiliates (1,767) (1,047) (1,784)
Proceeds from the issuance of Common Stock 2,086 3,637 76,268
Costs paid for the issuance of Common Stock 0 (95) (1,283)
Repurchase of shares related to tax withholdings (1,788) (1,677) (4,008)
Borrowings on revolving credit facility 604,600 438,900 780,300
Repayments of revolving credit facility (565,600) (501,900) (535,300)
Borrowings on mortgages and notes payable 747,990 345,863 656,001
Repayments of mortgages and notes payable (326,876) (211,803) (832,553)
Payments of debt extinguishment costs 0 0 (57)
Changes in debt issuance costs and other financing activities (7,806) (2,971) (8,324)
Net cash provided by/(used in) financing activities 246,209 (130,069) (142,528)
Net increase/(decrease) in cash and cash equivalents and restricted cash 4,599 (78,190) 9,702
Cash and cash equivalents and restricted cash at beginning of the period 10,143 88,333 78,631
Cash and cash equivalents and restricted cash at end of the period 14,742 10,143 88,333
Reconciliation of cash and cash equivalents and restricted cash:      
Cash and cash equivalents at end of the period 9,505 3,769 3,272
Restricted cash at end of the period 5,237 6,374 85,061
Supplemental disclosure of cash flow information:      
Cash paid for interest, net of amounts capitalized 72,014 67,235 68,207
Supplemental disclosure of non-cash investing and financing activities:      
Unrealized gains on cash flow hedges (9,134) 4,161 1,732
Conversions of Common Units to Common Stock 663 4,043 511
Changes in accrued capital expenditures 5,625 (165) (1,912)
Write-off of fully depreciated real estate assets 85,727 76,558 59,108
Write-off of fully amortized leasing costs 45,042 34,191 40,517
Write-off of fully amortized debt issuance costs 1,791 2,733 11,724
Adjustment of noncontrolling interests in the Operating Partnership to fair value 29,557 (33,427) (354)
Contingent consideration in connection with the acquisition of land 1,200 0 750
Contributions from noncontrolling interests in consolidated affiliates 4,987 0 0
Initial recognition of lease liabilities related to right of use assets 35,349 0 0
Highwoods Realty Limited Partnership [Member]      
Operating activities:      
Net income 141,683 177,630 191,663
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization 254,504 229,955 227,832
Amortization of lease incentives and acquisition-related intangible assets and liabilities (505) (1,943) (1,172)
Share-based compensation expense 7,180 7,466 6,692
Credit losses on operating lease receivables 9,861 1,212 1,508
Write-off of mortgages and notes receivable 4,087 0 0
Accrued interest on mortgages and notes receivable (184) (451) (509)
Amortization of debt issuance costs 2,970 2,857 3,166
Amortization of cash flow hedges (1,250) (2,086) 1,157
Amortization of mortgages and notes payable fair value adjustments 1,619 1,449 705
Impairments of real estate assets 5,849 423 1,445
Losses on debt extinguishment 640 0 26
Net gains on disposition of property (39,517) (37,638) (54,157)
Equity in earnings of unconsolidated affiliates (3,276) (2,238) (7,404)
Distributions of earnings from unconsolidated affiliates 1,149 2,104 5,078
Settlement of cash flow hedges (11,749) 7,216 7,322
Changes in operating assets and liabilities:      
Accounts receivable (3,271) 1,759 (4,974)
Prepaid expenses and other assets 1,610 1,217 7,908
Accrued straight-line rents receivable (29,828) (23,203) (32,234)
Accounts payable, accrued expenses and other liabilities 24,225 (7,101) (1,520)
Net cash provided by operating activities 365,797 358,628 352,532
Investing activities:      
Investments in acquired real estate and related intangible assets, net of cash acquired (424,222) (50,649) (1,840)
Investments in development in-process (116,111) (150,310) (150,944)
Investments in tenant improvements and deferred leasing costs (138,754) (121,534) (109,742)
Investments in building improvements (53,826) (68,256) (63,780)
Net proceeds from disposition of real estate assets 133,326 88,813 129,503
Distributions of capital from unconsolidated affiliates 7,833 105 11,670
Repayments of mortgages and notes receivable 295 1,312 2,917
Investments in and advances to unconsolidated affiliates (9,977) 0 (10,063)
Changes in other investing activities (5,971) (6,230) (8,023)
Net cash used in investing activities (607,407) (306,749) (200,302)
Financing activities:      
Distributions on Common Units (201,347) (195,712) (185,072)
Special distribution on Common Units 0 0 (83,149)
Redemptions/repurchases of Preferred Units (18) (15) (28)
Distributions on Preferred Units (2,488) (2,492) (2,492)
Distributions to noncontrolling interests in consolidated affiliates (1,767) (1,047) (1,784)
Proceeds from the issuance of Common Units 2,086 3,637 76,268
Costs paid for the issuance of Common Units 0 (95) (1,283)
Repurchase of units related to tax withholdings (1,788) (1,677) (4,008)
Borrowings on revolving credit facility 604,600 438,900 780,300
Repayments of revolving credit facility (565,600) (501,900) (535,300)
Borrowings on mortgages and notes payable 747,990 345,863 656,001
Repayments of mortgages and notes payable (326,876) (211,803) (832,553)
Payments of debt extinguishment costs 0 0 (57)
Changes in debt issuance costs and other financing activities (8,583) (3,728) (9,371)
Net cash provided by/(used in) financing activities 246,209 (130,069) (142,528)
Net increase/(decrease) in cash and cash equivalents and restricted cash 4,599 (78,190) 9,702
Cash and cash equivalents and restricted cash at beginning of the period 10,143 88,333 78,631
Cash and cash equivalents and restricted cash at end of the period 14,742 10,143 88,333
Reconciliation of cash and cash equivalents and restricted cash:      
Cash and cash equivalents at end of the period 9,505 3,769 3,272
Restricted cash at end of the period 5,237 6,374 85,061
Supplemental disclosure of cash flow information:      
Cash paid for interest, net of amounts capitalized 72,014 67,235 68,207
Supplemental disclosure of non-cash investing and financing activities:      
Unrealized gains on cash flow hedges (9,134) 4,161 1,732
Changes in accrued capital expenditures 5,625 (165) (1,912)
Write-off of fully depreciated real estate assets 85,727 76,558 59,108
Write-off of fully amortized leasing costs 45,042 34,191 40,517
Write-off of fully amortized debt issuance costs 1,791 2,733 11,724
Adjustment of Redeemable Common Units to fair value 27,256 (38,049) (793)
Contingent consideration in connection with the acquisition of land 1,200 0 750
Contributions from noncontrolling interests in consolidated affiliates 4,987 0 0
Initial recognition of lease liabilities related to right of use assets $ 35,349 $ 0 $ 0
v3.19.3.a.u2
Description of Business and Significant Accounting Policies
12 Months Ended
Dec. 31, 2019
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, 2019, we owned or had an interest in 31.7 million rentable square feet of in-service properties, 1.2 million rentable square feet of office properties under development and approximately 275 acres of development land.

The Company is the sole general partner of the Operating Partnership. At December 31, 2019, the Company owned all of the Preferred Units and 103.3 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 2019, the Company redeemed 15,000 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, 2019, three properties owned through a joint venture investment were consolidated. We also consolidate those entities deemed to be variable interest entities in which we are determined to be the primary beneficiary. At December 31, 2019, we have involvement with, and are the primary beneficiary in, an entity that we concluded to be a variable interest entity (see Note 4).

In addition, during 2019, we acquired a building using a special purpose entity owned by a qualified intermediary to facilitate a potential Section 1031 reverse exchange under the Internal Revenue Code. To realize the tax deferral available under the Section 1031 exchange, we must complete the Section 1031 exchange, and take title to the to-be-exchanged building within 180 days of the acquisition date. We have determined that this entity is a variable interest entity of which we are the primary beneficiary and therefore, we consolidate this entity. As of December 31, 2019, this variable interest entity had total assets, liabilities and cash flows of $425.0 million, $24.0 million and $2.5 million, respectively.

All intercompany transactions and accounts have been eliminated.

Certain amounts within the Consolidated Statements of Income for the years ended December 31, 2018 and 2017 were removed and/or combined to conform to the current year presentation.

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
 
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, 2019, a reserve of $0.6 million was recorded to cover estimated reported and unreported claims.

Other Events

During the third quarter of 2019, we announced a series of planned investment activities. First, during the fourth quarter of 2019, we acquired Bank of America Tower at Legacy Union in Charlotte’s uptown CBD submarket for a total investment of $436 million. Bank of America Tower at Legacy Union is a trophy, LEED gold-registered office building encompassing 841,000 square feet with structured parking that delivered in 2019. Second, we have a two-phased plan to exit the Greensboro and Memphis markets. The first phase consists of selling a select portfolio of assets in Greensboro and Memphis by mid-2020 with a total sales price that approximates the $436 million total investment for Bank of America Tower at Legacy Union (with the intent of executing a reverse 1031 exchange) and closing the division offices. In 2020, we sold 35 buildings and land in Greensboro for an aggregate sale price of $193.4 million. We can provide no assurances, however, that we will dispose of the remainder of these assets on favorable terms, or at all. The second phase is the planned sale of the remaining assets in both markets. There is no pre-determined timetable for the second phase. As a result of the announced plan to exit the Greensboro and Memphis markets and close our division offices, we recorded $1.8 million of severance costs in 2019.
 
During the first quarter of 2019, Laser Spine Institute, which leased a 176,000 square foot building with structured parking in Tampa’s Westshore submarket, suddenly ceased operations. As a result of this sudden closure, we incurred $5.6 million of credit losses on operating lease receivables and $2.3 million of write-offs of lease incentives (in rental and other revenues), $4.1 million of write-offs of notes receivable (in other income/(loss)) and $11.6 million of write-offs of tenant improvements and deferred leasing costs (in depreciation and amortization).

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 $214.7 million, $191.0 million and $184.4 million for the years ended December 31, 2019, 2018 and 2017, 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.

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 accounted for as asset acquisitions, 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 and other identifiable intangible assets and assumed liabilities. We allocate fair value on a relative basis 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.

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 our evaluation of events or changes in circumstances indicate that the carrying value may not be recoverable, 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.

Leases
 
See Note 2 for significant accounting policies and related disclosures with respect to revenue recognition for our leases, accounting for initial direct costs and lease incentive costs and credit losses on operating lease receivables as a result of the lease standard adoption effective January 1, 2019.

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.

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.

Concentration of Credit Risk
 
At December 31, 2019, properties that we wholly own were leased to 1,785 customers. The geographic locations that comprise greater than 10.0% of our rental and other revenues are Atlanta, Nashville, Raleigh and Tampa. Our customers engage in a wide variety of businesses. No single customer generated more than 5% of our consolidated revenues during 2019.
 
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, which consists of secured and unsecured long-term financings, 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. Changes in the fair value of derivatives designated and that qualify as cash flow hedges are recorded in accumulated other comprehensive income/(loss) and are subsequently reclassified into interest expense as interest payments are made on our debt.
 
We account for terminated derivative instruments by recognizing the related accumulated other 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 other 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.

Recently Issued Accounting Standards
 
The Financial Accounting Standards Board ("FASB") issued an accounting standards update ("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. We adopted the ASU as of January 1, 2019 with no 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.
v3.19.3.a.u2
Leases
12 Months Ended
Dec. 31, 2019
Leases [Abstract]  
Leases Leases
 
On January 1, 2019, we adopted Accounting Standards Codification Topic 842 “Leases” (“ASC 842”), which supersedes Accounting Standards Codification Topic 840 “Leases” (“ASC 840”). Information in this Note 2 with respect to our leases and lease related costs as both lessee and lessor and lease related receivables as lessor is presented under ASC 842 as of and for the year ended December 31, 2019 and under ASC 840 as of and for the year ended December 31, 2018.

We adopted ASC 842 using the modified retrospective approach whereby the cumulative effect of adoption was recognized on the adoption date and prior periods were not restated. There was no net cumulative effect adjustment to retained earnings as of January 1, 2019 as a result of this adoption. ASC 842 sets out the principles for the recognition, measurement, presentation and disclosure of leases for both lessees and lessors. We operate as both a lessor and a lessee. As a lessor, we are required under ASC 842 to account for leases using an approach that is substantially equivalent to ASC 840's guidance for operating leases and other leases such as sales-type leases and direct financing leases. In addition, ASC 842 requires lessors to capitalize and amortize only incremental direct leasing costs. As a lessee, we are required under the new standard to apply a dual approach, classifying leases, such as ground leases, as either finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase. This classification determines whether lease expense is recognized based on an effective interest method or on a straight-line basis over the term of the lease. ASC 842 also requires lessees 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. We have also elected the practical expedient not to recognize right of use assets and lease liabilities for leases with a term of a year or less.
 
On adoption of the standard, we elected the package of practical expedients provided for in ASC 842, including:
 
No reassessment of whether any expired or existing contracts were or contained leases;
 
No reassessment of the lease classification for any expired or existing leases; and
 
No reassessment of initial direct costs for any existing leases.
 
The package of practical expedients was made as a single election and was consistently applied to all existing leases as of January 1, 2019. We also elected the practical expedient provided to lessors in a subsequent amendment to ASC 842 that removed the requirement to separate lease and nonlease components, provided certain conditions were met.

Information as Lessor Under ASC 842
 
To generate positive cash flow, as a lessor, we generally lease our office properties to lessees in exchange for fixed monthly payments that cover rent, property taxes, insurance and certain cost recoveries, primarily common area maintenance (“CAM”). Office properties owned by us that are under lease are primarily located in Atlanta, Charlotte, Nashville, Orlando, Pittsburgh, Raleigh, Richmond and Tampa and are leased to a wide variety of lessees across many industries. Our leases were determined to be operating leases and mostly range from three to 10 years. Payments from customers for CAM are considered nonlease components that are separated from lease components and are generally accounted for in accordance with the revenue recognition standard. However, we qualified for and elected the practical expedient related to combining the components because the lease component is classified as an operating lease and the timing and pattern of transfer of CAM income, which is not the predominant component, is the same as the lease component. As such, consideration for CAM is accounted for as part of the overall consideration in the lease. Payments from customers for property taxes and insurance are considered noncomponents of the lease and therefore no consideration is allocated to them because they do not transfer a good or service to the customer. Fixed contractual payments from our 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.
 
Some of our leases are subject to annual changes in the Consumer Price Index (“CPI”). Although increases in the CPI are not estimated as part of our measurement of straight-line rental revenue, to the extent that actual CPI is greater or less than the CPI at lease commencement, the amount of straight-line rent recognized in a given year is affected accordingly.
 
Some of our leases have termination options and/or extension options. Termination options allow the customer to terminate the lease prior to the end of the lease term under certain circumstances. Termination options generally become effective half way or further into the original lease term and require advance notification from the customer and payment of a termination fee that reimburses us for a portion of the remaining rent under the original lease term and the undepreciated lease inception costs such as commissions, tenant improvements and lease incentives. Termination fee income is recognized on a straight-line basis from the date of the executed termination agreement through lease expiration when the amount of the fee is determinable and collectability of the fee is reasonably assured. Our extension options generally require a re-negotiation with the customer at market rates.
 
Initial direct costs, primarily commissions, related to the leasing of our office 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 and our in-house personnel for new leases or lease renewals are capitalized. Capitalized leasing costs are amortized on a straight-line basis over the initial fixed terms of the respective leases. All other costs to negotiate or arrange a lease are expensed as incurred.
 
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.
 
Lease related receivables, which include accounts receivable and accrued straight-line rents receivable, are reduced for credit losses. Such amounts are recognized as a reduction to rental and other revenues. We regularly evaluate the collectability of our lease related receivables. Our evaluation of collectability 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 reduce the related receivable balance for amounts deemed uncollectible. If our assumptions regarding the collectability of lease related receivables prove incorrect, we could experience credit losses in excess of what was recognized in rental and other revenues.

We recognized rental and other revenues related to operating lease payments of $723.1 million during the year ended December 31, 2019, of which variable lease payments were $65.4 million. The following table sets forth the undiscounted cash flows for future minimum base rents to be received from customers for leases in effect at December 31, 2019 for the properties that we wholly own:
 
2020
 
$
647,558

2021
 
621,080

2022
 
596,698

2023
 
537,225

2024
 
474,258

Thereafter
 
2,213,294

 
 
$
5,090,113


 
Information as Lessor Under ASC 840
 
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 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.
  
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.
 
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


 
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.
 
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


 
Information as Lessee Under ASC 842
 
We have 20 properties subject to operating ground leases in Atlanta, Nashville, Orlando, Raleigh and Tampa with a weighted average remaining term of 52 years. Rental payments on these leases are adjusted periodically based on either the CPI or on a pre-determined schedule. The monthly payments on a pre-determined schedule are recognized on a straight-line basis over the terms of the respective leases. Changes in the CPI are not estimated as part of our measurement of straight-line rental expense. Upon initial adoption of ASC 842, we recognized a lease liability of $35.3 million (in accounts payable, accrued expenses and other liabilities) and a related right of use asset of $29.7 million (in prepaid expenses and other assets) on our Consolidated Balance Sheets equal to the present value of the minimum lease payments required under each ground lease. The difference between the recorded lease liability and right of use asset represents the accrued straight-line rent liability previously recognized under ASC 840. We used a discount rate of approximately 4.5%, which was derived from our assessment of the credit quality of the Company and adjusted to reflect secured borrowing, estimated yield curves and long-term spread adjustments over appropriate tenors. Some of our ground leases contain extension options; however, these did not impact our calculation of the right of use asset and liability as they extend beyond the useful life of the properties subject to the operating ground leases. We recognized $2.5 million of ground lease expense, of which $2.2 million was paid in cash, during the year ended December 31, 2019.
 
The following table sets forth the undiscounted cash flows of our scheduled obligations for future minimum payments on operating ground leases at December 31, 2019 and a reconciliation of those cash flows to the operating lease liability at December 31, 2019:
 
2020
 
$
2,086

2021
 
2,127

2022
 
2,169

2023
 
2,167

2024
 
2,123

Thereafter
 
83,697

 
 
94,369

Discount
 
(59,470
)
Lease liability
 
$
34,899


 
Information as Lessee Under ASC 840
 
Certain of our properties are subject to operating ground leases. Rental payments on these leases are adjusted periodically based on either the CPI or on a pre-determined schedule. Total rental property expense recorded for operating ground leases was $2.5 million for each the years ended December 31, 2018 and 2017.
 
The following table sets forth our scheduled obligations for future minimum payments on operating ground leases at December 31, 2018:
 
2019
 
$
2,184

2020
 
2,223

2021
 
2,263

2022
 
2,305

2023
 
2,308

Thereafter
 
86,577

 
 
$
97,860


v3.19.3.a.u2
Real Estate Assets
12 Months Ended
Dec. 31, 2019
Real Estate [Abstract]  
Real Estate Assets Real Estate Assets
 
Acquisitions
 
During 2019, we acquired a building in the central business district of Charlotte, which delivered in 2019 and encompasses 841,000 rentable square feet, for a net purchase price of $399.1 million. The assets acquired and liabilities assumed were recorded at relative 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 2019, we also acquired four development parcels totaling approximately 10 acres in Raleigh, Richmond and Pittsburgh for an aggregate purchase price, including capitalized acquisition costs, of $12.4 million.
 
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.

Dispositions
 
During 2019, we sold a total of six buildings and various land parcels for an aggregate sale price of $136.4 million and recorded aggregate gains on disposition of property of $39.5 million.

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.

Impairments
 
During 2019, we recorded aggregate impairments of real estate assets of $5.8 million as a result of shortened hold periods from classifying all of our assets in Greensboro and Memphis as non-core and changes in market-based inputs and our assumptions about the use of the assets.
 
During 2018 and 2017, we recorded aggregate impairments of real estate assets of $0.4 million and $1.4 million, respectively. These impairments resulted from changes in market-based inputs and our assumptions about the use of the assets.
v3.19.3.a.u2
Investments In and Advances To Affiliates
12 Months Ended
Dec. 31, 2019
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 $0.7 million and $0.6 million at December 31, 2019 and 2018, respectively.
 
The following table sets forth our ownership in unconsolidated affiliates at December 31, 2019:
 
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%

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, 2019, 2018 and 2017, we recognized $0.5 million, $0.4 million and $1.4 million, respectively, of development/construction, management and leasing fees from our unconsolidated joint ventures. At both December 31, 2019 and 2018, we had receivables of $0.1 million related to these fees in accounts receivable.
 
Consolidated Variable Interest Entity
 
During the second quarter of 2019, we and The Bromley Companies formed a joint venture (the "Midtown One joint venture”) to construct Midtown One, a 150,000 square foot, multi-customer office building located in the mixed-use Midtown Tampa project in Tampa’s Westshore submarket. Midtown One has an anticipated total investment of $71.3 million. Construction of Midtown One began in the third quarter of 2019 with a scheduled completion date in the second quarter of 2021. At closing, we agreed to
contribute cash of $20.0 million ($15.9 million of which was funded and/or placed in escrow as of December 31, 2019) in exchange for an 80.0% interest in the Midtown One joint venture and The Bromley Companies contributed land valued at $5.0 million in exchange for the remaining 20.0% interest. We also committed to provide a $46.3 million interest-only secured construction loan to the Midtown One joint venture that is scheduled to mature on the second anniversary of completion. The loan bears interest at LIBOR plus 250 basis points. As of December 31, 2019, no amounts under the loan have been funded.
 
We determined that we have a variable interest in the Midtown One joint venture primarily because the entity was designed to pass along interest rate risk, equity price risk and operation risk to us as both a debt and an equity holder and The Bromley Companies as an equity holder. The Midtown One joint venture was further determined to be a variable interest entity as it requires additional subordinated financial support in the form of a loan because the initial equity investment provided by us and The Bromley Companies is not sufficient to finance its planned investments and operations. We, as majority owner and managing member and through our control rights as set forth in the joint venture's governance documents, were determined to be the primary beneficiary as we have both the power to direct the activities that most significantly affect the entity (primarily lease rates, property operations and capital expenditures) and significant economic exposure through our equity investment and loan commitment. As such, the Midtown One joint venture was consolidated as of December 31, 2019 and for the period May 29, 2019 through December 31, 2019 and all intercompany transactions and accounts were eliminated. The following table sets forth the assets and liabilities of the Midtown One joint venture included on our Consolidated Balance Sheets:
 
 
December 31,
2019
Development in-process
$
22,380

Accounts payable, accrued expenses and other liabilities
$
1,162


 
The assets of the Midtown One joint venture can be used only to settle obligations of the joint venture and its creditors have no recourse to our wholly owned assets.
 
Other Consolidated Affiliate
 
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, 2019. 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.
v3.19.3.a.u2
Intangible Assets and Below Market Leaes Liabilities
12 Months Ended
Dec. 31, 2019
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,
 
2019
 
2018
Assets:
 
 
 
Deferred leasing costs (including lease incentives and above market lease and in-place lease acquisition-related intangible assets)
$
377,472

 
$
344,548

Less accumulated amortization
(146,125
)
 
(149,275
)
 
$
231,347

 
$
195,273

Liabilities (in accounts payable, accrued expenses and other liabilities):
 
 
 
Acquisition-related below market lease liabilities
$
65,971

 
$
57,955

Less accumulated amortization
(34,014
)
 
(32,307
)
 
$
31,957

 
$
25,648

The following table sets forth amortization of intangible assets and below market lease liabilities:
 
 
Year Ended December 31,
 
2019
 
2018
 
2017
Amortization of deferred leasing costs and acquisition-related intangible assets (in depreciation and amortization)
$
37,386

 
$
36,486

 
$
41,187

Amortization of lease incentives (in rental and other revenues)
$
4,281

 
$
1,908

 
$
1,765

Amortization of acquisition-related intangible assets (in rental and other revenues)
$
1,290

 
$
1,677

 
$
2,921

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)
$
(6,633
)
 
$
(6,085
)
 
$
(6,415
)

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)
2020
 
$
38,376

 
$
1,599

 
$
1,095

 
$
510

 
$
(5,933
)
2021
 
33,581

 
1,353

 
777

 

 
(5,033
)
2022
 
29,200

 
1,119

 
608

 

 
(3,985
)
2023
 
25,683

 
1,040

 
454

 

 
(3,607
)
2024
 
22,631

 
890

 
380

 

 
(2,939
)
Thereafter
 
65,964

 
3,914

 
2,173

 

 
(10,460
)
 
 
$
215,435

 
$
9,915

 
$
5,487

 
$
510

 
$
(31,957
)
Weighted average remaining amortization periods as of December 31, 2019 (in years)
 
8.4

 
9.2

 
9.4

 
1.0

 
8.8



The following table sets forth the intangible assets acquired and below market lease liabilities assumed as a result of 2019 acquisition activity:
 
 
 
Acquisition-Related Intangible Assets (amortized in Rental and Other Revenues)
 
Acquisition-Related Intangible Assets (amortized in Depreciation and Amortization)
 
Acquisition-Related Below Market Lease Liabilities (amortized in Rental and Other Revenues)
Amount recorded at acquisition
 
$
2,059

 
$
35,637

 
$
(12,943
)
Weighted average remaining amortization periods as of December 31, 2019 (in years)
 
14.4

 
14.7

 
14.3


v3.19.3.a.u2
Mortgages and Notes Payable
12 Months Ended
Dec. 31, 2019
Debt Disclosure [Abstract]  
Mortgages and Notes Payable Mortgages and Notes Payable
 
Our mortgages and notes payable consist of the following:
 
 
December 31,
 
2019
 
2018
Secured indebtedness:
 
 
 
4.00% mortgage loan due 2029 (1)
$
95,303

 
$
97,179

 
95,303

 
97,179

Unsecured indebtedness:
 
 
 
3.20% (3.363% effective rate) notes due 2021 (2)
299,369

 
298,936

3.625% (3.752% effective rate) notes due 2023 (3)
249,201

 
248,938

3.875% (4.038% effective rate) notes due 2027 (4)
297,134

 
296,734

4.125% (4.271% effective rate) notes due 2028 (5)
346,621

 
346,208

4.20% (4.234% effective rate) notes due 2029 (6)

349,091

 

3.050% (3.079% effective rate) notes due 2030 (7)

399,009

 

Variable rate term loan due 2020 (8)

 
225,000

Variable rate term loan due 2022 (9)
100,000

 
200,000

Variable rate term loan due 2022 (10)
200,000

 
200,000

Revolving credit facility due 2022 (11)
221,000

 
182,000

 
2,461,425

 
1,997,816

Less-unamortized debt issuance costs
(13,018
)
 
(9,164
)
Total mortgages and notes payable, net
$
2,543,710

 
$
2,085,831

__________
(1)
Our secured mortgage loan was collateralized by real estate assets with an undepreciated book value of $147.1 million at December 31, 2019. We paid down $1.9 million of secured loan balances through principal amortization during 2019.
(2)
Net of unamortized original issuance discount of $0.6 million and $1.1 million as of December 31, 2019 and 2018, respectively.
(3)
Net of unamortized original issuance discount of $0.8 million and $1.1 million as of December 31, 2019 and 2018, respectively.
(4)
Net of unamortized original issuance discount of $2.9 million and $3.3 million as of December 31, 2019 and 2018, respectively.
(5)
Net of unamortized original issuance discount of $3.4 million and $3.8 million as of December 31, 2019 and 2018, respectively.
(6)
Net of unamortized original issuance discount of $0.9 million as of December 31, 2019.
(7)
Net of unamortized original issuance discount of $1.0 million as of December 31, 2019.
(8)
This debt was repaid in 2019.
(9)
As more fully described in Note 7, 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 $50.0 million was 2.81% at December 31, 2019.
(10)
The interest rate was 2.90% at December 31, 2019.
(11)
The interest rate was 2.73% at December 31, 2019.
The following table sets forth scheduled future principal payments, including amortization, due on our mortgages and notes payable at December 31, 2019:
 
Years Ending December 31,
 
Principal Amount
2020
 
$
248

2021
 
300,560

2022
 
521,842

2023
 
251,180

2024
 
1,281

Thereafter
 
1,481,617

Less-unamortized debt issuance costs
 
(13,018
)
 
 
$
2,543,710

 
During 2017, we entered into a $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 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 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. 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 $221.0 million and $225.0 million outstanding under our revolving credit facility at December 31, 2019 and January 24, 2020, respectively. At both December 31, 2019 and January 24, 2020, we had $0.1 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, 2019 and January 24, 2020 was $378.9 million and $374.9 million, respectively.
 
During 2019, the Operating Partnership issued $400.0 million aggregate principal amount of 3.050% notes due February 2030, less original issuance discount of $1.0 million. These notes were priced to yield 3.079%. Underwriting fees and other expenses were incurred that aggregated $3.4 million; these costs were deferred and will be amortized over the term of the notes.
 
During 2019, the Operating Partnership issued $350.0 million aggregate principal amount of 4.20% notes due April 2029, less original issuance discount of $1.0 million. These notes were priced to yield 4.234%. Underwriting fees and other expenses were incurred that aggregated $3.1 million; these costs were deferred and will be amortized over the term of the notes.
 
During 2018, we paid off at maturity $200.0 million principal amount of 7.5% unsecured notes.
 
During 2018, the Operating Partnership issued $350.0 million aggregate principal amount of 4.125% notes due March 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 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.
 
During 2017, the Operating Partnership issued $300.0 million aggregate principal amount of 3.875% notes due March 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 was 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 was 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 and recorded $0.4 million of loss on debt extinguishment related to this prepayment. During 2019, we prepaid without penalty the remaining $225.0 million and 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.
 
We previously 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. During 2019, we prepaid without penalty $100.0 million on this $200.0 million unsecured bank term loan. We recorded $0.3 million of loss on debt extinguishment related to this prepayment.
 
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.
 
The Operating Partnership has $299.4 million carrying amount of 2021 notes outstanding, $249.2 million carrying amount of 2023 notes outstanding, $297.1 million carrying amount of 2027 notes outstanding, $346.6 million carrying amount of 2028 notes outstanding, $349.1 million carrying amount of 2029 notes outstanding and $399.0 million carrying amount of 2030 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;
 
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 $5.6 million, $6.7 million and $8.8 million for the years ended December 31, 2019, 2018 and 2017, respectively.
v3.19.3.a.u2
Derivative Financial Instruments
12 Months Ended
Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Derivative Financial Instruments
Derivative Financial Instruments

During 2019, we entered into $150.0 million notional amount of forward-starting swaps that effectively locked the underlying 10-year treasury rate at 1.87% with respect to a planned issuance of debt securities by the Operating Partnership. Upon the subsequent issuance of the $400.0 million aggregate principal amount of 3.050% notes due February 2030 during 2019, we terminated the forward-starting swaps and paid cash upon settlement. The unrealized loss of $6.6 million in accumulated other comprehensive income/(loss) will be reclassified to interest expense as interest payments are made on the debt.

During 2018, we entered into an aggregate of $225.0 million notional amount of forward-starting swaps that effectively locked 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. Upon issuance of the $350.0 million aggregate principal amount of 4.20% notes due April 2029 during 2019, we terminated the forward-starting swaps and paid cash upon settlement. The unrealized loss of $5.1 million in accumulated other comprehensive income/(loss) will be reclassified to interest expense as interest payments are made on the debt.

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 March 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/(loss) 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%.

We previously 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 March 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/(loss) will be reclassified to interest expense as interest payments are made on the debt.

We also had floating-to-fixed interest rate swaps 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%. During 2019, these interest rate swaps expired.

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 changes in fair value recorded in other comprehensive income/(loss) each reporting period. We have no collateral requirements related to our interest rate swaps.

Amounts reported in accumulated other comprehensive income/(loss) related to derivatives will be reclassified to interest expense as interest payments are made on our debt. During 2020, we estimate that $0.3 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,
 
2019
 
2018
Derivatives:
 
 
 
Derivatives designated as cash flow hedges in prepaid expenses and other assets:
 
 
 
Interest rate swaps
$

 
$
1,146

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

$
154

 
$
3,581



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

 
Year Ended December 31,
 
2019
 
2018
 
2017
Derivatives Designated as Cash Flow Hedges:
 
 
 
 
 
Amount of unrealized gains/(losses) recognized in accumulated other comprehensive income/(loss) on derivatives:
 
 
 
 
 
Interest rate swaps
$
(9,134
)
 
$
4,161

 
$
1,732

Amount of (gains)/losses reclassified out of accumulated other comprehensive income/(loss) into interest expense:
 
 
 
 
 
Interest rate swaps
$
(1,250
)
 
$
(2,086
)
 
$
1,157


v3.19.3.a.u2
Commitments and Contingencies
12 Months Ended
Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]  
Commitments and Contingencies
Commitments and Contingencies

Lease and Contractual Commitments
 
We have $466.8 million of lease and contractual commitments at December 31, 2019. 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 $70.5 million was recorded on our Consolidated Balance Sheets at December 31, 2019.

Contingent Consideration
 
We had $5.3 million and $5.0 million of contingent consideration related to certain parcels of acquired development land at December 31, 2019 and 2018, respectively. 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.
v3.19.3.a.u2
Noncontrolling Interests
12 Months Ended
Dec. 31, 2019
Noncontrolling Interest [Abstract]  
Noncontrolling Interests
Noncontrolling Interests

Noncontrolling Interests in Consolidated Affiliates

At December 31, 2019, our noncontrolling interests in consolidated affiliates relate to our joint venture partners' 50.0% interest in office properties in Richmond and 20.0% interest in an office development property in Tampa. Our joint venture partners are unrelated third parties.

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,
 
2019
 
2018
Beginning noncontrolling interests in the Operating Partnership
$
105,960

 
$
144,009

Adjustment of noncontrolling interests in the Operating Partnership to fair value
29,557

 
(33,427
)
Conversions of Common Units to Common Stock
(663
)
 
(4,043
)
Net income attributable to noncontrolling interests in the Operating Partnership
3,551

 
4,588

Distributions to noncontrolling interests in the Operating Partnership
(5,189
)
 
(5,167
)
Total noncontrolling interests in the Operating Partnership
$
133,216

 
$
105,960


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,
 
2019
 
2018
 
2017
Net income available for common stockholders
$
134,430

 
$
169,343

 
$
182,873

Increase in additional paid in capital from conversions of Common Units to Common Stock
663

 
4,043

 
511

Change from net income available for common stockholders and transfers from noncontrolling interests
$
135,093

 
$
173,386

 
$
183,384


v3.19.3.a.u2
Disclosure About Fair Value of Financial Instruments
12 Months Ended
Dec. 31, 2019
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 unobservable local and national industry market data such as comparable sales, appraisals, brokers' opinions of value and/or the terms of definitive sales contracts. Significant increases or decreases in any valuation inputs in isolation would result in a significantly lower or higher fair value measurement.

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, 2019:
 
 
 
 
 
 
 
Assets:
 
 
 
 
 
 
 
Mortgages and notes receivable, at fair value (1)
$
1,501

 
$

 
$
1,501

 
$

Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets)
2,345

 
2,345

 

 

Total Assets
$
3,846

 
$
2,345

 
$
1,501

 
$

Noncontrolling Interests in the Operating Partnership
$
133,216

 
$
133,216

 
$

 
$

Liabilities:
 
 
 
 
 
 
 
Mortgages and notes payable, net, at fair value (1)
$
2,615,776

 
$

 
$
2,615,776

 
$

Interest rate swaps (in accounts payable, accrued expenses and other liabilities)
154

 

 
154

 

Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities)
2,345

 
2,345

 

 

Total Liabilities
$
2,618,275

 
$
2,345

 
$
2,615,930

 
$

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

 
$


__________
(1)    Amounts recorded at historical cost on our Consolidated Balance Sheets at December 31, 2019 and 2018.
 
The Level 3 impaired real estate assets measured at a fair value of $7.6 million in the third quarter of 2019 include an office building and land held for development. The aggregate impairments resulted from a change in our assumptions about the use of the assets and were calculated using brokers’ opinions of value and comparable sales as observable inputs were not available.

The Level 3 impaired real estate assets measured at fair values of $0.7 million and $10.3 million in the second quarter of 2019 and fourth quarter of 2018, respectively, include land held for development. The impairments resulted from a change in our assumptions about the use of the assets and were calculated using the terms of definitive sales contracts as observable inputs were not available.
v3.19.3.a.u2
Equity
12 Months Ended
Dec. 31, 2019
Equity [Abstract]  
Equity
Equity
 
Common Stock Issuances
 
At December 31, 2019, the Company had 96.2 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 $1.90, $1.85 and $1.76 for the years ended December 31, 2019, 2018 and 2017, respectively.

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,
 
2019
 
2018
 
2017
Ordinary dividend
$
1.64

 
$
1.48

 
$
1.50

Capital gains
0.13

 
0.31

 
0.32

Return of capital
0.13

 
0.06

 

Total
$
1.90

 
$
1.85

 
$
1.82



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, 2019
 
 
 
 
 
 
 
 
 
 
 
 
8.625% Series A Cumulative Redeemable
 
2/12/1997
 
29

 
$
28,859

 
$
1,000

 
2/12/2027
 
$
86.25

December 31, 2018
 
 
 
 
 
 
 
 
 
 
 
 
8.625% Series A Cumulative Redeemable
 
2/12/1997
 
29

 
$
28,877

 
$
1,000

 
2/12/2027
 
$
86.25


 
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,
 
2019
 
2018
 
2017
8.625% Series A Cumulative Redeemable:
 
 
 
 
 
Ordinary dividend
$
79.90

 
$
71.22

 
$
71.00

Capital gains
6.35

 
15.03

 
15.25

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, 2019 and 2018, 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 $1.90, $1.85 and $1.76 for the years ended December 31, 2019, 2018 and 2017, respectively.

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, 2019
 
 
 
 
 
 
 
 
 
 
 
 
8.625% Series A Cumulative Redeemable
 
2/12/1997
 
29

 
$
28,859

 
$
1,000

 
2/12/2027
 
$
86.25

December 31, 2018
 
 
 
 
 
 
 
 
 
 
 
 
8.625% Series A Cumulative Redeemable
 
2/12/1997
 
29

 
$
28,877

 
$
1,000

 
2/12/2027
 
$
86.25


v3.19.3.a.u2
Employee Benefit Plans
12 Months Ended
Dec. 31, 2019
Share-based Payment Arrangement [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. Since 2018, the mix has 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,
 
2019
 
2018
Outstanding stock options and warrants
599,902

 
611,518

Possible future issuance under equity incentive plans
2,016,659

 
2,188,696

 
2,616,561

 
2,800,214



Of the possible future issuance under the Company' long-term equity incentive plans at December 31, 2019, no more than an additional 0.4 million shares can be in the form of restricted stock.

During the years ended December 31, 2019, 2018 and 2017, we recognized $7.2 million, $7.5 million and $6.7 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, 2019, there was $5.2 million of total unrecognized share-based compensation costs, which will be recognized over a weighted average remaining contractual term of 2.1 years.

- 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 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 ("NYSE") 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 value of options granted during 2017 was $6.72 per option. The fair value of the options granted was determined at the grant date using the following assumptions:

 
 
2017
Risk free interest rate (1) 
 
2.0
%
Common stock dividend yield (2) 
 
3.4
%
Expected volatility (3) 
 
19.5
%
Average expected option life (years) (4)
 
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, 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
596,518

 
45.67

Exercised
(9,026
)
 
39.53

Forfeited
(2,590
)
 
48.79

Stock options outstanding at December 31, 2019 (1) (2)
584,902

 
$
45.75

__________
(1)
The outstanding options at December 31, 2019 had a weighted average remaining life of 5.8 years.
(2)
The Company had 443,783 options exercisable at December 31, 2019 with a weighted average exercise price of $44.78, weighted average remaining life of 5.6 years and intrinsic value of $2.1 million. Of these exercisable options, 84,374 had exercise prices higher than the market price of our Common Stock at December 31, 2019.

Cash received or receivable from options exercised was $0.4 million, $1.9 million and $5.2 million for the years ended December 31, 2019, 2018 and 2017, respectively. The total intrinsic value of options exercised during the years ended December 31, 2019, 2018 and 2017 was $0.1 million, $0.4 million and $1.3 million, respectively. The total intrinsic value of options outstanding at December 31, 2019, 2018 and 2017 was $2.4 million, $0.1 million and $3.9 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 generally over four years. Beginning in 2019, shares of time-based restricted stock granted to non-employee directors vest on the first anniversary of the grant date. 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, 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

Awarded and issued (1)
103,590

 
45.98

Vested (2)
(73,036
)
 
45.79

Forfeited
(3,642
)
 
46.07

Restricted shares outstanding at December 31, 2019
218,151

 
$
45.73

__________
(1)
The weighted average fair value at grant date of time-based restricted stock issued during the years ended December 31, 2019, 2018 and 2017 was $4.8 million, $4.1 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, 2019, 2018 and 2017 was $3.3 million, $3.2 million and $4.1 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
 
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 2019, 2018 and 2017 was determined to be $39.42, $40.81 and $49.59, 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:
 
 
2019
 
2018
 
2017
Risk free interest rate (1) 
2.4
%
 
2.3
%
 
1.6
%
Common stock dividend yield (2) 
4.4
%
 
3.9
%
 
3.5
%
Expected volatility (3) 
27.3
%
 
41.1
%
 
42.8
%
__________
(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, 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

Awarded and issued (1)
87,344

 
39.42

Vested (2)
(45,901
)
 
43.68

Forfeited (4)
(12,689
)
 
43.58

Restricted shares outstanding at December 31, 2019
208,848

 
$
42.22

__________
(1)
The fair value at grant date of total return-based restricted stock issued during the years ended December 31, 2019, 2018 and 2017 was $3.4 million, $3.2 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, 2019, 2018 and 2017 was $2.1 million, $1.8 million and $5.6 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 amount includes 34,669 additional shares that were issued at the end of the applicable measurement period because actual performance exceeded certain levels of performance.
(4)
The 2019 and 2018 amounts include 9,521 and 13,707 shares, respectively, that were forfeited at the end of the applicable measurement period because the applicable total return did not meet the target level.

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, 2019, 2018 and 2017, we contributed $1.5 million, $1.4 million and $1.4 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 $2.3 million and $1.8 million at December 31, 2019 and 2018, 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,
 
2019
 
2018
 
2017
Beginning deferred compensation liability
$
1,849

 
$
2,388

 
$
2,451

Mark-to-market adjustment to deferred compensation (in general and administrative expenses)
496

 
(182
)
 
492

Distributions from deferred compensation plans

 
(357
)
 
(555
)
Total deferred compensation liability
$
2,345

 
$
1,849

 
$
2,388


 
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 NYSE on the five consecutive days preceding the last day of the quarter. In the years ended December 31, 2019, 2018 and 2017, the Company issued 38,618, 38,951 and 33,278 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, $0.3 million and $0.2 million in the years ended December 31, 2019, 2018 and 2017, 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.
v3.19.3.a.u2
Accumulated Other Comprehensive Income/(Loss)
12 Months Ended
Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Accumulated Other Comprehensive Income/(Loss)
Accumulated Other Comprehensive Income/(Loss)

The following table sets forth the components of accumulated other comprehensive income/(loss):
 
 
December 31,
 
2019
 
2018
Cash flow hedges:
 
 
 
Beginning balance
$
9,913

 
$
7,838

Unrealized gains/(losses) on cash flow hedges
(9,134
)
 
4,161

Amortization of cash flow hedges (1)
(1,250
)
 
(2,086
)
Total accumulated other comprehensive income/(loss)
$
(471
)
 
$
9,913


__________
(1)
Amounts reclassified out of accumulated other comprehensive income/(loss) into interest expense.
v3.19.3.a.u2
Real Estate and Other Assets Held For Sale
12 Months Ended
Dec. 31, 2019
Discontinued Operations and Disposal Groups [Abstract]  
Real Estate and Other Assets Held For Sale
Real Estate and Other Assets Held For Sale
 
The following table sets forth the assets held for sale at December 31, 2019 and 2018, which are considered non-core:
 
 
December 31,
 
2019
 
2018
Assets:
 
 
 
Land
$
4,815

 
$

Buildings and tenant improvements
29,581

 

Less-accumulated depreciation
(16,775
)
 

Net real estate assets
17,621

 

Accrued straight-line rents receivable
2,073

 

Deferred leasing costs, net
1,096

 

Real estate and other assets, net, held for sale
$
20,790

 
$

v3.19.3.a.u2
Earnings Per Share and Per Unit
12 Months Ended
Dec. 31, 2019
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,
 
2019
 
2018
 
2017
Earnings per Common Share - basic:
 
 
 
 
 
Numerator:
 
 
 
 
 
Net income
$
141,683

 
$
177,630

 
$
191,663

Net (income) attributable to noncontrolling interests in the Operating Partnership
(3,551
)
 
(4,588
)
 
(5,059
)
Net (income) attributable to noncontrolling interests in consolidated affiliates
(1,214
)
 
(1,207
)
 
(1,239
)
Dividends on Preferred Stock
(2,488
)
 
(2,492
)
 
(2,492
)
Net income available for common stockholders
$
134,430

 
$
169,343

 
$
182,873

Denominator:
 
 
 
 
 
Denominator for basic earnings per Common Share – weighted average shares (1)
103,692

 
103,439

 
102,682

Net income available for common stockholders
$
1.30

 
$
1.64

 
$
1.78

Earnings per Common Share - diluted:
 
 
 
 
 
Numerator:
 
 
 
 
 
Net income
$
141,683

 
$
177,630

 
$
191,663

Net (income) attributable to noncontrolling interests in consolidated affiliates
(1,214
)
 
(1,207
)
 
(1,239
)
Dividends on Preferred Stock
(2,488
)
 
(2,492
)
 
(2,492
)
Net income available for common stockholders before net (income) attributable to noncontrolling interests in the Operating Partnership
$
137,981

 
$
173,931

 
$
187,932

Denominator:
 
 
 
 
 
Denominator for basic earnings per Common Share – weighted average shares (1)
103,692

 
103,439

 
102,682

Add:
 
 
 
 
 
Stock options using the treasury method
22

 
33

 
79

Noncontrolling interests Common Units
2,731

 
2,796

 
2,833

Denominator for diluted earnings per Common Share – adjusted weighted average shares and assumed conversions
106,445

 
106,268

 
105,594

Net income available for common stockholders
$
1.30

 
$
1.64

 
$
1.78

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

The following table sets forth the computation of basic and diluted earnings per unit of the Operating Partnership:

 
Year Ended December 31,
 
2019
 
2018
 
2017
Earnings per Common Unit - basic:
 
 
 
 
 
Numerator:
 
 
 
 
 
Net income
$
141,683

 
$
177,630

 
$
191,663

Net (income) attributable to noncontrolling interests in consolidated affiliates
(1,214
)
 
(1,207
)
 
(1,239
)
Distributions on Preferred Units
(2,488
)
 
(2,492
)
 
(2,492
)
Net income available for common unitholders
$
137,981

 
$
173,931

 
$
187,932

Denominator:
 
 
 
 
 
Denominator for basic earnings per Common Unit – weighted average units (1)
106,014

 
105,826

 
105,106

Net income available for common unitholders
$
1.30

 
$
1.64

 
$
1.79

Earnings per Common Unit - diluted:
 
 
 
 
 
Numerator:
 
 
 
 
 
Net income
$
141,683

 
$
177,630

 
$
191,663

Net (income) attributable to noncontrolling interests in consolidated affiliates
(1,214
)
 
(1,207
)
 
(1,239
)
Distributions on Preferred Units
(2,488
)
 
(2,492
)
 
(2,492
)
Net income available for common unitholders
$
137,981

 
$
173,931

 
$
187,932

Denominator:
 
 
 
 
 
Denominator for basic earnings per Common Unit – weighted average units (1)
106,014

 
105,826

 
105,106

Add:
 
 
 
 
 
Stock options using the treasury method
22

 
33

 
79

Denominator for diluted earnings per Common Unit – adjusted weighted average units and assumed conversions
106,036

 
105,859

 
105,185

Net income available for common unitholders
$
1.30

 
$
1.64

 
$
1.79

__________
(1)
Includes all unvested restricted stock where distributions on such restricted stock are non-forfeitable.
v3.19.3.a.u2
Income Taxes
12 Months Ended
Dec. 31, 2019
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 $1.44, $1.26 and $1.37 per share in 2019, 2018 and 2017, 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 $4.7 billion and $2.9 billion, respectively, at December 31, 2019 and $4.3 billion and $2.3 billion, respectively, at December 31, 2018. The tax basis of the Operating Partnership's assets (net of accumulated tax depreciation and amortization) and liabilities was approximately $4.7 billion and $2.9 billion, respectively, at December 31, 2019 and $4.2 billion and $2.3 billion, respectively, at December 31, 2018.

During the years ended December 31, 2019, 2018 and 2017, 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,
 
2019
 
2018
 
2017
Current tax expense/(benefit):
 
 
 
 
 
Federal
$
202

 
$
133

 
$
(177
)
State
148

 
112

 
105

 
350

 
245

 
(72
)
Deferred tax expense/(benefit):
 
 
 
 
 
Federal
14

 
(95
)
 
223

State
(120
)
 
(68
)
 
(9
)
 
(106
)
 
(163
)
 
214

Total income tax expense
$
244

 
$
82

 
$
142



The Company's net deferred tax liability was $0.1 million and $0.2 million as of December 31, 2019 and 2018, 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, 2019 and 2018, there were no unrecognized tax benefits. The Company is subject to federal, state and local income tax examinations by taxing authorities for 2016 through 2019. The Company does not expect that the total amount of unrecognized benefits will materially change within the next year.
v3.19.3.a.u2
Segment Information
12 Months Ended
Dec. 31, 2019
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,
 
2019
 
2018
 
2017
Rental and Other Revenues:
 
 
 
 
 
Office:
 
 
 
 
 
Atlanta
$
151,279

 
$
141,337

 
$
140,323

Charlotte
4,650

 

 

Greensboro
22,154

 
22,322

 
21,453

Memphis
39,494

 
40,230

 
45,430

Nashville
133,867

 
121,836

 
111,506

Orlando
52,679

 
53,771

 
51,236

Pittsburgh
60,755

 
61,177

 
59,103

Raleigh
122,173

 
118,352

 
119,254

Richmond
49,428

 
45,729

 
43,959

Tampa
86,431

 
102,404

 
97,524

Total Office Segment
722,910

 
707,158

 
689,788

Other
13,069

 
12,877

 
12,949

Total Rental and Other Revenues
$
735,979

 
$
720,035

 
$
702,737


 
Year Ended December 31,
 
2019
 
2018
 
2017
Net Operating Income:
 
 
 
 
 
Office:
 
 
 
 
 
Atlanta
$
97,019

 
$
87,503

 
$
89,575

Charlotte
3,791

 

 

Greensboro
14,183

 
14,275

 
13,612

Memphis
24,790

 
25,659

 
28,128

Nashville
97,386

 
88,554

 
81,204

Orlando
32,062

 
32,841

 
30,526

Pittsburgh
36,249

 
36,233

 
34,784

Raleigh
88,402

 
86,053

 
86,475

Richmond
33,756

 
31,276

 
29,946

Tampa
50,339

 
65,819

 
62,378

Total Office Segment
477,977

 
468,213

 
456,628

Other
9,491

 
9,407

 
9,221

Total Net Operating Income
487,468

 
477,620

 
465,849

Reconciliation to net income:
 
 
 
 
 
Depreciation and amortization
(254,504
)
 
(229,955
)
 
(227,832
)
Impairments of real estate assets
(5,849
)
 
(423
)
 
(1,445
)
General and administrative expenses
(44,067
)
 
(40,006
)
 
(39,648
)
Interest expense
(81,648
)
 
(71,422
)
 
(69,105
)
Other income/(loss)
(2,510
)
 
1,940

 
2,283

Gains on disposition of property
39,517

 
37,638

 
54,157

Equity in earnings of unconsolidated affiliates
3,276

 
2,238

 
7,404

Net income
$
141,683

 
$
177,630

 
$
191,663



 
December 31,
 
2019
 
2018
Total Assets:
 
 
 
Office:
 
 
 
Atlanta
$
1,040,869

 
$
1,047,850

Charlotte
425,045

 

Greensboro
114,030

 
118,611

Memphis
148,832

 
213,276

Nashville
1,045,125

 
937,732

Orlando
289,743

 
306,370

Pittsburgh
323,792

 
329,918

Raleigh
830,128

 
792,464

Richmond
246,546

 
248,669

Tampa
521,620

 
522,263

Total Office Segment
4,985,730

 
4,517,153

Other
152,514

 
157,856

Total Assets
$
5,138,244

 
$
4,675,009


v3.19.3.a.u2
Quarterly Financial Data (Unaudited)
12 Months Ended
Dec. 31, 2019
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, 2019
 
First
Quarter
 
Second
Quarter
 
Third
Quarter
 
Fourth
Quarter
 
Total
Rental and other revenues
$
172,363

 
$
184,070

 
$
187,475

 
$
192,071

 
$
735,979

 
 
 
 
 
 
 
 
 
 
Net income
8,386

 
41,394

 
29,557

 
62,346

 
141,683

Net (income) attributable to noncontrolling interests in the Operating Partnership
(193
)
 
(1,044
)
 
(737
)
 
(1,577
)
 
(3,551
)
Net (income) attributable to noncontrolling interests in consolidated affiliates
(316
)
 
(306
)
 
(297
)
 
(295
)
 
(1,214
)
Dividends on Preferred Stock
(622
)
 
(622
)
 
(622
)
 
(622
)
 
(2,488
)
Net income available for common stockholders
$
7,255

 
$
39,422

 
$
27,901

 
$
59,852

 
$
134,430

Earnings per Common Share – basic:
 
 
 
 
 
 
 
 
 
Net income available for common stockholders
$
0.07

 
$
0.38

 
$
0.27

 
$
0.58

 
$
1.30

Earnings per Common Share – diluted:
 
 
 
 
 
 
 
 
 
Net income available for common stockholders
$
0.07

 
$
0.38

 
$
0.27

 
$
0.58

 
$
1.30



 
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


The following tables set forth quarterly financial information of the Operating Partnership:
 
 
Year Ended December 31, 2019
 
First
Quarter
 
Second
Quarter
 
Third
Quarter
 
Fourth
Quarter
 
Total
Rental and other revenues
$
172,363

 
$
184,070

 
$
187,475

 
$
192,071

 
$
735,979

 
 
 
 
 
 
 
 
 
 
Net income
8,386

 
41,394

 
29,557

 
62,346

 
141,683

Net (income) attributable to noncontrolling interests in consolidated affiliates
(316
)
 
(306
)
 
(297
)
 
(295
)
 
(1,214
)
Distributions on Preferred Units
(622
)
 
(622
)
 
(622
)
 
(622
)
 
(2,488
)
Net income available for common unitholders
$
7,448

 
$
40,466

 
$
28,638

 
$
61,429

 
$
137,981

Earnings per Common Unit – basic:
 
 
 
 
 
 
 
 
 
Net income available for common unitholders
$
0.07

 
$
0.38

 
$
0.27

 
$
0.58

 
$
1.30

Earnings per Common Unit – diluted:
 
 
 
 
 
 
 
 
 
Net income available for common unitholders
$
0.07

 
$
0.38

 
$
0.27

 
$
0.58

 
$
1.30



 
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



v3.19.3.a.u2
Subsequent Events
12 Months Ended
Dec. 31, 2019
Subsequent Events [Abstract]  
Subsequent Events
Subsequent Events

In 2020, we sold 35 buildings and land in Greensboro for an aggregate sale price of $193.4 million and expect to record aggregate gains on disposition of property of $105.0 million.

On February 4, 2020, the Company declared a cash dividend of $0.48 per share of Common Stock, which is payable on March 10, 2020 to stockholders of record as of February 18, 2020.
v3.19.3.a.u2
Schedule III
12 Months Ended
Dec. 31, 2019
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,
 
2019
 
2018
 
2017
Real estate assets:
 
 
 
 
 
Beginning balance
$
5,296,551

 
$
5,173,754

 
$
4,865,103

Additions:
 
 
 
 
 
Acquisitions, development and improvements
677,842

 
274,863

 
486,755

Cost of real estate sold and retired
(197,589
)
 
(152,066
)
 
(178,104
)
Ending balance (a)
$
5,776,804

 
$
5,296,551

 
$
5,173,754

Accumulated depreciation:
 
 
 
 
 
Beginning balance
$
1,296,562

 
$
1,211,728

 
$
1,134,103

Depreciation expense
214,682

 
191,035

 
184,385

Real estate sold and retired
(105,903
)
 
(106,201
)
 
(106,760
)
Ending balance (b)
$
1,405,341

 
$
1,296,562

 
$
1,211,728


(a)
Reconciliation of total real estate assets to balance sheet caption:
 
2019
 
2018
 
2017
Total per Schedule III
$
5,776,804

 
$
5,296,551

 
$
5,173,754

Development in-process exclusive of land included in Schedule III
172,706

 
165,537

 
88,452

Real estate assets, net, held for sale
(34,396
)
 

 
(22,543
)
Total real estate assets
$
5,915,114

 
$
5,462,088

 
$
5,239,663


(b)
Reconciliation of total accumulated depreciation to balance sheet caption:
 
2019
 
2018
 
2017
Total per Schedule III
$
1,405,341

 
$
1,296,562

 
$
1,211,728

Real estate assets, net, held for sale
(16,775
)
 

 
(9,304
)
Total accumulated depreciation
$
1,388,566

 
$
1,296,562

 
$
1,202,424


Real Estate and Accumulated Depreciation Disclosure
HIGHWOODS PROPERTIES, INC.
HIGHWOODS REALTY LIMITED PARTNERSHIP
 
SCHEDULE III - REAL ESTATE AND ACCUMULATED DEPRECIATION
(in thousands)
 
December 31, 2019

 
 
 
 
 
 
Initial Costs
 
Costs Capitalized
Subsequent to
Acquisition
 
Gross Value at Close of Period
 
 
 
 
 
 
Description
 
Property
Type
 
2019
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

 
$
1,452

 
$
2

 
$
3,934

 
$
3,936

 
$
1,727

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

 
29,081

 

 
10,645

 
1,444

 
39,726

 
41,170

 
22,558

 
1975
 
 5-40 yrs.
1825 Century Boulevard
 
Office
 
 
 
864

 

 
303

 
15,089

 
1,167

 
15,089

 
16,256

 
6,255

 
2002
 
 5-40 yrs.
1875 Century Boulevard
 
Office
 
 
 

 
8,924

 

 
8,281

 

 
17,205

 
17,205

 
7,779

 
1976
 
 5-40 yrs.
1900 Century Boulevard
 
Office
 
 
 

 
4,744

 

 
710

 

 
5,454

 
5,454

 
5,111

 
1971
 
 5-40 yrs.
2200 Century Parkway
 
Office
 
 
 

 
14,432

 

 
9,043

 

 
23,475

 
23,475

 
11,282

 
1971
 
 5-40 yrs.
2400 Century Parkway
 
Office
 
 
 

 

 
406

 
14,779

 
406

 
14,779

 
15,185

 
7,111

 
1998
 
 5-40 yrs.
2500 Century Parkway
 
Office
 
 
 

 

 
328

 
12,629

 
328

 
12,629

 
12,957

 
4,149

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

 

 

 
6,446

 

 
6,446

 
6,446

 
2,254

 
2005
 
 5-40 yrs.
2600 Century Parkway
 
Office
 
 
 

 
10,679

 

 
4,603

 

 
15,282

 
15,282

 
7,823

 
1973
 
 5-40 yrs.
2635 Century Parkway
 
Office
 
 
 

 
21,643

 

 
19,336

 

 
40,979

 
40,979

 
15,880

 
1980
 
 5-40 yrs.
2800 Century Parkway
 
Office
 
 
 

 
20,449

 

 
10,417

 

 
30,866

 
30,866

 
16,569

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

 
20,006

 

 
4,150

 
2,500

 
24,156

 
26,656

 
12,784

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

 
8,567

 

 
4,695

 
1,290

 
13,262

 
14,552

 
6,329

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

 
7,733

 

 
3,118

 
1,380

 
10,851

 
12,231

 
5,249

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

 

 
1,416

 
12,160

 
2,612

 
12,160

 
14,772

 
3,269

 
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

 

 
19,671

 
3,342

 
51,782

 
55,124

 
24,343

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

 

 
(4,439
)
 
718

 
2,811

 
718

 
3,529

 
167

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

 
64,913

 
(29
)
 
23,760

 
5,756

 
88,673

 
94,429

 
20,255

 
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

 

 
2,029

 
9,579

 
127,578

 
137,157

 
32,833

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

 
123,071

 

 
17,076

 
14,775

 
140,147

 
154,922

 
27,985

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

 
26,334

 

 
11,692

 
5,349

 
38,026

 
43,375

 
8,963

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

 
22,811

 

 
2,883

 
5,103

 
25,694

 
30,797

 
6,361

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

 
89,708

 
450

 
2,772

 
5,227

 
92,480

 
97,707

 
8,007

 
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
 
2019
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

 
52

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

 
143,068

 

 
14,742

 
22,717

 
157,810

 
180,527

 
20,029

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

 
88,962

 

 
8,945

 
27,678

 
97,907

 
125,585

 
12,760

 
1983
 
5-40 yrs.
Charlotte, NC
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Bank of America Tower
 
Office
 
 
 

 

 
29,273

 
354,749

 
29,273

 
354,749

 
384,022

 
1,224

 
2019
 
 5-40 yrs.
Memphis, TN
 
 
 
 
 























 
 
 
 
Triad Centre I
 
Office
 
 
 
2,340

 
11,385

 
(849
)
 
4,713

 
1,491

 
16,098

 
17,589

 
7,925

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

 
8,677

 
(404
)
 
5,609

 
1,576

 
14,286

 
15,862

 
6,925

 
1987
 
 5-40 yrs.
Centrum
 
Office
 
 
 
1,013

 
5,580

 

 
3,261

 
1,013

 
8,841

 
9,854

 
4,835

 
1979
 
 5-40 yrs.
Comcast
 
Office
 
 
 
946

 

 
(252
)
 
4,907

 
694

 
4,907

 
5,601

 
1,719

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

 
27,782

 

 
7,210

 
4,884

 
34,992

 
39,876

 
19,039

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

 
10,240

 

 
4,663

 
3,607

 
14,903

 
18,510

 
5,632

 
2008
 
 5-40 yrs.
Colonnade
 
Office
 
 
 
1,300

 
6,481

 
267

 
2,501

 
1,567

 
8,982

 
10,549

 
4,546

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

 
32,756

 
(547
)
 
13,525

 
7,328

 
46,281

 
53,609

 
13,266

 
1986
 
 5-40 yrs.
Triad Centre III
 
Office
 
 
 
1,253

 

 

 
36,651

 
1,253

 
36,651

 
37,904

 
10,244

 
2009
 
 5-40 yrs.
Capital Grille
 
Office
 
 
 
311

 
3,258

 

 
(23
)
 
311

 
3,235

 
3,546

 
1,553

 
2014
 
 5-40 yrs.
Seasons 52
 
Office
 
 
 
320

 
3,741

 

 
(39
)
 
320

 
3,702

 
4,022

 
1,703

 
2014
 
 5-40 yrs.
Nashville, TN
 
 
 
 
 























 
 
 
 
3322 West End
 
Office
 
 
 
3,025

 
27,490

 

 
11,107

 
3,025

 
38,597

 
41,622

 
17,278

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

 
22,917

 

 
6,680

 
5,862

 
29,597

 
35,459

 
15,313

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

 
7,201

 

 
3,648

 
1,863

 
10,849

 
12,712

 
6,060

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

 

 

 
3,990

 

 
3,990

 
3,990

 
1,213

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

 

 

 
4,463

 

 
4,463

 
4,463

 
1,422

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

 

 
15

 
13,341

 
1,598

 
13,341

 
14,939

 
6,710

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

 

 
346

 
19,860

 
2,170

 
19,860

 
22,030

 
9,088

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

 

 
804

 
15,746

 
2,435

 
15,746

 
18,181

 
5,194

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

 

 

 
19,331

 
1,715

 
19,331

 
21,046

 
5,562

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

 

 
295

 
53,000

 
3,983

 
53,000

 
56,983

 
21,228

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

 
5,677

 

 
2,421

 
1,419

 
8,098

 
9,517

 
4,237

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

 
6,649

 

 
2,550

 
1,660

 
9,199

 
10,859

 
5,183

 
1987
 
 5-40 yrs.
Harpeth On The Green IV
 
Office
 
 
 
1,713

 
6,842

 

 
2,910

 
1,713

 
9,752

 
11,465

 
5,146

 
1989
 
 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
 
2019
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 V
 
Office
 
 
 
662

 

 
197

 
4,590

 
859

 
4,590

 
5,449

 
2,354

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

 

 
164

 
5,445

 
1,328

 
5,445

 
6,773

 
2,214

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

 

 
307

 
9,776

 
1,859

 
9,776

 
11,635

 
4,535

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

 

 
307

 
9,043

 
1,755

 
9,043

 
10,798

 
4,582

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

 

 
592

 
12,856

 
2,668

 
12,856

 
15,524

 
5,442

 
2002
 
 5-40 yrs.
SouthPointe
 
Office
 
 
 
1,655

 

 
310

 
8,642

 
1,965

 
8,642

 
10,607

 
3,717

 
1998
 
 5-40 yrs.
Ramparts
 
Office
 
 
 
2,394

 
12,806

 

 
9,113

 
2,394

 
21,919

 
24,313

 
8,012

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

 

 
382

 
11,887

 
2,488

 
11,887

 
14,375

 
5,498

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

 
7,258

 

 
2,128

 
1,497

 
9,386

 
10,883

 
4,929

 
1987
 
 5-40 yrs.
The Pinnacle at Symphony Place
 
Office
 
95,303

 

 
141,469

 

 
5,613

 

 
147,082

 
147,082

 
31,696

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

 
37,587

 

 
180

 
2,525

 
37,767

 
40,292

 
7,311

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

 
8,223

 

 
428

 
803

 
8,651

 
9,454

 
2,195

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

 
51,306

 

 
2,015

 
2,439

 
53,321

 
55,760

 
6,123

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

 
30,048

 

 
1,621

 
2,356

 
31,669

 
34,025

 
2,853

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

 
169,392

 
1,200

 
190

 
16,839

 
169,582

 
186,421

 
11,517

 
2017
 
 5-40 yrs.
MARS Campus
 
Office
 
 
 

 

 
7,010

 
87,474

 
7,010

 
87,474

 
94,484

 
2,225

 
2019
 
 5-40 yrs.
5501 Virginia Way
 
Office
 
 
 
4,534

 
25,632

 

 

 
4,534

 
25,632

 
30,166

 
794

 
2018
 
 5-40 yrs.
Ovation - Land
 
Office
 
 
 
31,063

 

 

 

 
31,063

 

 
31,063

 

 
N/A
 
 N/A
Orlando, FL
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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
The 1800 Eller Drive Building
 
Office
 
 
 

 
9,851

 

 
3,663

 

 
13,514

 
13,514

 
8,883

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

 
29,541

 

 
8,753

 
3,893

 
38,294

 
42,187

 
7,498

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

 
43,394

 

 
6,788

 
4,346

 
50,182

 
54,528

 
10,775

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

 
27,321

 

 
6,360

 
3,482

 
33,681

 
37,163

 
6,051

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

 
22,031

 

 
8,840

 
4,743

 
30,871

 
35,614

 
6,465

 
1985
 
 5-40 yrs.
Landmark Center One
 
Office
 
 
 
6,207

 
22,655

 

 
10,389

 
6,207

 
33,044

 
39,251

 
6,691

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

 
56,079

 

 
9,333

 
3,490

 
65,412

 
68,902

 
10,721

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

 
11,160

 

 
7,654

 
3,758

 
18,814

 
22,572

 
2,881

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

 
2,900

 

 
327

 
724

 
3,227

 
3,951

 
1,982

 
1990
 
 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
 
2019
Encumbrance
 
Land
 
Bldg &
Improv
 
Land
 
Bldg &
Improv
 
Land
 
Bldg &
Improv
 
Total
Assets (1)
 
Accumulated
Depreciation
 
Date of
Construction
 
Life on
Which
Depreciation
is
Calculated
6350 Burnt Poplar Road
 
Industrial
 
 
 
341

 
1,374

 

 
726

 
341

 
2,100

 
2,441

 
1,075

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

 
1,516

 

 
1,136

 
379

 
2,652

 
3,031

 
1,445

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

 
1,849

 

 
1,065

 
462

 
2,914

 
3,376

 
1,426

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

 
1,293

 

 
647

 
322

 
1,940

 
2,262

 
1,002

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

 
2,921

 

 
2,707

 
510

 
5,628

 
6,138

 
2,932

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

 
3,237

 

 
1,603

 
739

 
4,840

 
5,579

 
2,771

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

 
9,576

 

 
5,904

 
2,393

 
15,480

 
17,873

 
8,818

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

 

 
699

 
5,375

 
1,549

 
5,375

 
6,924

 
2,630

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

 
1,068

 

 
219

 
224

 
1,287

 
1,511

 
751

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

 

 
380

 
1,508

 
845

 
1,508

 
2,353

 
632

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

 
1,081

 

 
223

 
145

 
1,304

 
1,449

 
714

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

 

 
270

 
896

 
535

 
896

 
1,431

 
425

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

 
1,103

 

 
490

 
237

 
1,593

 
1,830

 
819

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

 
946

 

 
163

 
192

 
1,109

 
1,301

 
655

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

 
1,219

 

 
462

 
305

 
1,681

 
1,986

 
922

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

 
928

 

 
409

 
225

 
1,337

 
1,562

 
810

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

 
777

 

 
323

 
171

 
1,100

 
1,271

 
671

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

 

 
239

 
1,045

 
510

 
1,045

 
1,555

 
553

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

 
1,613

 

 
518

 
356

 
2,131

 
2,487

 
1,198

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

 
1,523

 

 
533

 
374

 
2,056

 
2,430

 
1,257

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

 
1,486

 

 
643

 
341

 
2,129

 
2,470

 
1,162

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

 
2,676

 

 
939

 
659

 
3,615

 
4,274

 
2,187

 
1988
 
 5-40 yrs.
237 Burgess Road
 
Industrial
 
 
 
860

 
2,919

 

 
1,282

 
860

 
4,201

 
5,061

 
2,221

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

 
4,392

 

 
1,462

 
1,302

 
5,854

 
7,156

 
3,238

 
1987
 
 5-40 yrs.
241 Burgess Road
 
Industrial
 
 
 
450

 
1,517

 

 
717

 
450

 
2,234

 
2,684

 
1,174

 
1988
 
 5-40 yrs.
243 Burgess Road
 
Industrial
 
 
 
452

 
1,514

 

 
530

 
452

 
2,044

 
2,496

 
1,120

 
1988
 
 5-40 yrs.
496 Gallimore Dairy Road
 
Industrial
 
 
 
546

 

 

 
3,144

 
546

 
3,144

 
3,690

 
1,377

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

 

 

 
3,124

 
749

 
3,124

 
3,873

 
1,481

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

 

 

 
3,379

 
603

 
3,379

 
3,982

 
1,515

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

 

 

 
2,367

 
499

 
2,367

 
2,866

 
1,124

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

 

 

 
4,663

 
1,733

 
4,663

 
6,396

 
2,238

 
1999
 
 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
 
2019
Encumbrance
 
Land
 
Bldg &
Improv
 
Land
 
Bldg &
Improv
 
Land
 
Bldg &
Improv
 
Total
Assets (1)
 
Accumulated
Depreciation
 
Date of
Construction
 
Life on
Which
Depreciation
is
Calculated
Brigham Road - Land
 
Industrial
 
 
 
7,059

 

 
(5,510
)
 

 
1,549

 

 
1,549

 

 
N/A
 
 N/A
651 Brigham Road
 
Industrial
 
 
 
453

 

 
360

 
2,937

 
813

 
2,937

 
3,750

 
1,330

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

 

 
881

 
10,802

 
3,614

 
10,802

 
14,416

 
3,699

 
2006
 
 5-40 yrs.
653 Brigham Road
 
Industrial
 
 
 
814

 

 

 
3,603

 
814

 
3,603

 
4,417

 
1,084

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

 

 

 
9,208

 
1,476

 
9,208

 
10,684

 
3,779

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

 

 
(7,979
)
 

 
3,780

 

 
3,780

 

 
N/A
 
 N/A
4200 Tudor Lane
 
Industrial
 
 
 
515

 

 
383

 
2,915

 
898

 
2,915

 
3,813

 
1,522

 
1996
 
 5-40 yrs.
4224 Tudor Lane
 
Industrial
 
 
 
435

 

 
288

 
2,445

 
723

 
2,445

 
3,168

 
1,250

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

 
3,459

 

 
1,155

 
834

 
4,614

 
5,448

 
2,736

 
1989
 
 5-40 yrs.
1126 North Church Street
 
Office
 
 
 
2,734

 
9,129

 

 
1,333

 
2,734

 
10,462

 
13,196

 
2,094

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

 
5,451

 

 
(591
)
 
2,376

 
4,860

 
7,236

 
917

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

 
4,551

 

 
(362
)
 
925

 
4,189

 
5,114

 
843

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

 
12,141

 

 
2,221

 
2,906

 
14,362

 
17,268

 
2,884

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

 
7,719

 

 
2,115

 
3,787

 
9,834

 
13,621

 
2,137

 
1996
 
 5-40 yrs.
661 Brigham Road
 
Industrial
 
 
 
890

 
5,512

 

 
413

 
890

 
5,925

 
6,815

 
636

 
2016
 
 5-40 yrs.
655 Brigham Road
 
Industrial
 
 
 
899

 
6,538

 

 
229

 
899

 
6,767

 
7,666

 
547

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

 
107,643

 

 
49,010

 
9,819

 
156,653

 
166,472

 
44,985

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

 
10,978

 

 
9,873

 
2,302

 
20,851

 
23,153

 
4,678

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

 
2,923

 

 
4,635

 
501

 
7,558

 
8,059

 
2,308

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

 
3,239

 

 
2,958

 
620

 
6,197

 
6,817

 
1,863

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

 
4,924

 

 
3,002

 
803

 
7,926

 
8,729

 
2,424

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

 
25,602

 

 
15,048

 
3,353

 
40,650

 
44,003

 
9,730

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

 
83,812

 

 
12,399

 
16,457

 
96,211

 
112,668

 
21,907

 
1987
 
 5-40 yrs.
East Liberty - Land
 
Office
 
 
 

 

 
2,478

 

 
2,478

 

 
2,478

 

 
N/A
 
 N/A
Raleigh, NC
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
3600 Glenwood Avenue
 
Office
 
 
 

 
10,994

 

 
3,737

 

 
14,731

 
14,731

 
8,361

 
1986
 
 5-40 yrs.
3737 Glenwood Avenue
 
Office
 
 
 

 

 
318

 
16,512

 
318

 
16,512

 
16,830

 
8,022

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

 
17,630

 

 
7,984

 
2,678

 
25,614

 
28,292

 
15,194

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

 
4,612

 
(49
)
 
2,901

 
961

 
7,513

 
8,474

 
3,939

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

 

 
272

 
11,549

 
1,100

 
11,549

 
12,649

 
4,538

 
2002
 
 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
 
2019
Encumbrance
 
Land
 
Bldg &
Improv
 
Land
 
Bldg &
Improv
 
Land
 
Bldg &
Improv
 
Total
Assets (1)
 
Accumulated
Depreciation
 
Date of
Construction
 
Life on
Which
Depreciation
is
Calculated
2500 Blue Ridge Road
 
Office
 
 
 
722

 
4,606

 

 
1,527

 
722

 
6,133

 
6,855

 
3,625

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

 
1,410

 

 
1,295

 
462

 
2,705

 
3,167

 
1,492

 
1988
 
 5-40 yrs.
Cape Fear
 
Office
 
 
 
131

 
1,630

 
(2
)
 
(908
)
 
129

 
722

 
851

 
413

 
1979
 
 5-40 yrs.
Catawba
 
Office
 
 
 
125

 
1,635

 
(2
)
 
(1,417
)
 
123

 
218

 
341

 
156

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

 

 
(391
)
 
11,829

 
1,138

 
11,829

 
12,967

 
5,600

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

 

 
(389
)
 
10,563

 
1,264

 
10,563

 
11,827

 
4,716

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

 
34,572

 

 
2,861

 
1,291

 
37,433

 
38,724

 
3,201

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

 

 
(397
)
 
13,965

 
1,382

 
13,965

 
15,347

 
4,464

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

 

 
55

 
11,185

 
1,335

 
11,185

 
12,520

 
3,208

 
2008
 
 5-40 yrs.
Cottonwood
 
Office
 
 
 
609

 
3,244

 

 
433

 
609

 
3,677

 
4,286

 
2,325

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

 

 
(9,924
)
 
114

 
3,079

 
114

 
3,193

 
53

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

 

 
1,324

 
22,697

 
2,248

 
22,697

 
24,945

 
9,344

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

 

 
493

 
19,967

 
2,152

 
19,967

 
22,119

 
6,708

 
2006
 
 5-40 yrs.
GlenLake Six
 
Office
 
 
 
941

 

 
(365
)
 
20,166

 
576

 
20,166

 
20,742

 
6,057

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

 

 
540

 
15,994

 
1,844

 
15,994

 
17,838

 
8,025

 
1996
 
 5-40 yrs.
Highwoods Centre
 
Office
 
 
 
531

 

 
(267
)
 
8,035

 
264

 
8,035

 
8,299

 
4,094

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

 

 
38

 
103

 
695

 
103

 
798

 
11

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

 
6,311

 

 
786

 
1,450

 
7,097

 
8,547

 
1,769

 
1998
 
5-40 yrs.
4620 Creekstone Drive
 
Office
 
 
 
149

 

 
107

 
3,141

 
256

 
3,141

 
3,397

 
1,416

 
2001
 
 5-40 yrs.
4825 Creekstone Drive
 
Office
 
 
 
398

 

 
293

 
10,445

 
691

 
10,445

 
11,136

 
4,984

 
1999
 
 5-40 yrs.
Pamlico
 
Office
 
 
 
289

 

 

 
8,741

 
289

 
8,741

 
9,030

 
6,893

 
1980
 
 5-40 yrs.
Progress Center Renovation
 
Office
 
 
 

 

 

 
3

 

 
3

 
3

 
3

 
2003
 
 5-40 yrs.
751 Corporate Center
 
Office
 
 
 
2,665

 
16,939

 

 

 
2,665

 
16,939

 
19,604

 
1,027

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

 

 

 
70,353

 
1,206

 
70,353

 
71,559

 
22,364

 
2008
 
5-40 yrs.
4301 Lake Boone Trail
 
Office
 
 
 
878

 
3,730

 

 
2,427

 
878

 
6,157

 
7,035

 
3,712

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

 
1,818

 

 
1,421

 
362

 
3,239

 
3,601

 
1,968

 
1993
 
5-40 yrs.
2301 Rexwoods Drive
 
Office
 
 
 
919

 
2,816

 

 
1,649

 
919

 
4,465

 
5,384

 
2,536

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

 

 

 
4,781

 
586

 
4,781

 
5,367

 
2,437

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

 

 
184

 
6,533

 
1,485

 
6,533

 
8,018

 
3,774

 
1998
 
5-40 yrs.
4709 Creekstone Drive
 
Office
 
 
 
469

 
4,038

 
23

 
5,302

 
492

 
9,340

 
9,832

 
2,750

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

 
2,665

 

 
1,505

 
666

 
4,170

 
4,836

 
2,514

 
1982
 
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
 
2019
Encumbrance
 
Land
 
Bldg &
Improv
 
Land
 
Bldg &
Improv
 
Land
 
Bldg &
Improv
 
Total
Assets (1)
 
Accumulated
Depreciation
 
Date of
Construction
 
Life on
Which
Depreciation
is
Calculated
4700 Homewood Court
 
Office
 
 
 
1,086

 
4,533

 

 
2,080

 
1,086

 
6,613

 
7,699

 
3,776

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

 
4,411

 

 
2,901

 
862

 
7,312

 
8,174

 
4,156

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

 
11,743

 

 
7,119

 
2,353

 
18,862

 
21,215

 
10,579

 
1984
 
5-40 yrs.
4601 Creekstone Drive
 
Office
 
 
 
255

 

 
217

 
6,186

 
472

 
6,186

 
6,658

 
3,332

 
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

 
6,175

 
726

 
6,175

 
6,901

 
3,439

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

 
18,850

 

 
8,852

 
2,651

 
27,702

 
30,353

 
4,131

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

 
30,264

 

 
3,654

 
2,263

 
33,918

 
36,181

 
7,015

 
2014
 
5-40 yrs.
11800 Weston Parkway
 
Office
 
 
 
826

 
13,188

 

 
21

 
826

 
13,209

 
14,035

 
2,343

 
2014
 
5-40 yrs.
CentreGreen Café
 
Office
 
 
 
41

 
3,509

 

 
(2
)
 
41

 
3,507

 
3,548

 
446

 
2014
 
5-40 yrs.
CentreGreen Fitness Center
 
Office
 
 
 
27

 
2,322

 

 
(1
)
 
27

 
2,321

 
2,348

 
295

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

 
68,375

 

 
26,949

 
11,288

 
95,324

 
106,612

 
16,622

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

 

 
2,248

 

 
8,232

 

 
8,232

 

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

 
65,881

 

 
4,868

 
7,267

 
70,749

 
78,016

 
7,696

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

 
88,137

 
4,536

 
61,752

 
21,580

 
149,889

 
171,469

 
14,810

 
2015
 
5-40 yrs.
Hargett - Land
 
Office
 
 
 

 

 
6,582

 

 
6,582

 

 
6,582

 

 
N/A
 
N/A
Other Property
 
Other
 
 
 
32,075

 
40,392

 
(23,161
)
 
10,466

 
8,914

 
50,858

 
59,772

 
28,224

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

 
5,311

 
15

 
3,650

 
1,339

 
8,961

 
10,300

 
5,062

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

 
6,105

 

 
2,488

 
1,364

 
8,593

 
9,957

 
3,612

 
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

 
(424
)
 
1,749

 
12,875

 
14,624

 
5,876

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

 
4,345

 
10

 
2,781

 
1,096

 
7,126

 
8,222

 
3,554

 
1986
 
 5-40 yrs.
Highwoods Commons
 
Office
 
 
 
521

 

 
458

 
4,493

 
979

 
4,493

 
5,472

 
2,080

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

 

 
22

 
14,117

 
1,710

 
14,117

 
15,827

 
6,815

 
1996
 
 5-40 yrs.
Highwoods Two
 
Office
 
 
 
786

 

 
226

 
9,684

 
1,012

 
9,684

 
10,696

 
3,447

 
1997
 
 5-40 yrs.
Highwoods Five
 
Office
 
 
 
783

 

 
11

 
7,505

 
794

 
7,505

 
8,299

 
3,429

 
1998
 
 5-40 yrs.
Highwoods Plaza
 
Office
 
 
 
909

 

 
187

 
5,732

 
1,096

 
5,732

 
6,828

 
2,729

 
2000
 
 5-40 yrs.
Innslake Center
 
Office
 
 
 
845

 

 
195

 
7,770

 
1,040

 
7,770

 
8,810

 
3,143

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

 
4,825

 

 
1,488

 
1,205

 
6,313

 
7,518

 
3,440

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

 
13,259

 
213

 
(3,652
)
 
1,513

 
9,607

 
11,120

 
3,710

 
1998
 
 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
 
2019
Encumbrance
 
Land
 
Bldg &
Improv
 
Land
 
Bldg &
Improv
 
Land
 
Bldg &
Improv
 
Total
Assets (1)
 
Accumulated
Depreciation
 
Date of
Construction
 
Life on
Which
Depreciation
is
Calculated
4600 Cox Road
 
Office
 
 
 
1,700

 
17,081

 
169

 
(3,456
)
 
1,869

 
13,625

 
15,494

 
5,144

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

 
8,659

 
6

 
3,039

 
2,169

 
11,698

 
13,867

 
6,575

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

 

 
17

 
12,607

 
968

 
12,607

 
13,575

 
5,969

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

 

 
(89
)
 
10,812

 
1,978

 
10,812

 
12,790

 
3,549

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

 

 
15

 
4

 
1,512

 
4

 
1,516

 

 
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

 
20,736

 
356

 
20,736

 
21,092

 
9,470

 
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

 
2,221

 
1,621

 
11,085

 
12,706

 
4,968

 
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

 
11,925

 
2,276

 
11,925

 
14,201

 
3,867

 
2005
 
 5-40 yrs.
Stony Point VI (Virginia Urology)
 
Office
 
 
 
1,925

 
25,868

 

 

 
1,925

 
25,868

 
27,793

 
1,177

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

 
11,630

 
(267
)
 
4,300

 
1,117

 
15,930

 
17,047

 
8,031

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

 

 
103

 
12,888

 
1,343

 
12,888

 
14,231

 
6,121

 
1999
 
 5-40 yrs.
Stony Point III
 
Office
 
 
 
995

 

 

 
10,685

 
995

 
10,685

 
11,680

 
4,891

 
2002
 
 5-40 yrs.
Stony Point IV
 
Office
 
 
 
955

 

 

 
11,900

 
955

 
11,900

 
12,855

 
3,966

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

 
6,036

 
15

 
1,576

 
1,316

 
7,612

 
8,928

 
3,801

 
1996
 
 5-40 yrs.
Waterfront Plaza
 
Office
 
 
 
585

 
2,347

 
8

 
2,218

 
593

 
4,565

 
5,158

 
1,930

 
1988
 
 5-40 yrs.
Innsbrook Centre
 
Office
 
 
 
914

 
8,249

 

 
1,090

 
914

 
9,339

 
10,253

 
3,828

 
1987
 
 5-40 yrs.
Elks Pass - Land
 
Office
 
 
 

 

 
3,326

 

 
3,326

 

 
3,326

 

 
N/A
 
N/A
Tampa, FL
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Meridian Three
 
Office
 
 
 
2,673

 
16,470

 

 
6,586

 
2,673

 
23,056

 
25,729

 
6,733

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

 
11,817

 

 
3,634

 
2,276

 
15,451

 
17,727

 
6,667

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

 

 
406

 
28,339

 
4,460

 
28,339

 
32,799

 
12,783

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

 

 

 
22,651

 
881

 
22,651

 
23,532

 
10,465

 
2001
 
 5-40 yrs.
Highwoods Bay Center I
 
Office
 
 
 
3,565

 

 
(64
)
 
37,682

 
3,501

 
37,682

 
41,183

 
11,112

 
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

 
3,994

 
2007
 
 5-40 yrs.
HIW Preserve VII Garage
 
Office
 
 
 

 

 

 
6,818

 

 
6,818

 
6,818

 
2,193

 
2007
 
 5-40 yrs.
Horizon
 
Office
 
 
 

 
6,257

 

 
3,833

 

 
10,090

 
10,090

 
5,115

 
1980
 
 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
 
2019
Encumbrance
 
Land
 
Bldg &
Improv
 
Land
 
Bldg &
Improv
 
Land
 
Bldg &
Improv
 
Total
Assets (1)
 
Accumulated
Depreciation
 
Date of
Construction
 
Life on
Which
Depreciation
is
Calculated
LakePointe One
 
Office
 
 
 
2,106

 
89

 

 
41,019

 
2,106

 
41,108

 
43,214

 
22,270

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

 
15,848

 
672

 
15,376

 
2,672

 
31,224

 
33,896

 
15,604

 
1999
 
 5-40 yrs.
Lakeside
 
Office
 
 
 

 
7,369

 

 
7,168

 

 
14,537

 
14,537

 
6,731

 
1978
 
 5-40 yrs.
Lakeside/Parkside Garage
 
Office
 
 
 

 

 

 
5,636

 

 
5,636

 
5,636

 
2,213

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

 
25,252

 

 
14,672

 
2,016

 
39,924

 
41,940

 
16,623

 
1985
 
 5-40 yrs.
Parkside
 
Office
 
 
 

 
9,407

 

 
1,805

 

 
11,212

 
11,212

 
5,680

 
1979
 
 5-40 yrs.
Pavilion
 
Office
 
 
 

 
16,394

 

 
5,673

 

 
22,067

 
22,067

 
11,582

 
1982
 
 5-40 yrs.
Pavilion Parking Garage
 
Office
 
 
 

 

 

 
5,790

 

 
5,790

 
5,790

 
2,884

 
1999
 
 5-40 yrs.
Spectrum
 
Office
 
 
 
1,454

 
14,502

 

 
3,197

 
1,454

 
17,699

 
19,153

 
9,374

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

 
19,898

 

 
5,297

 
3,218

 
25,195

 
28,413

 
13,533

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

 
5,186

 

 
1,532

 
1,126

 
6,718

 
7,844

 
3,403

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

 

 
5,027

 
2,227

 
9,970

 
2,227

 
12,197

 
158

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

 
4,526

 

 
5,651

 
2,531

 
10,177

 
12,708

 
4,497

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

 
22,363

 

 
3,462

 
1,849

 
25,825

 
27,674

 
5,716

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

 
19,588

 

 
4,483

 
1,302

 
24,071

 
25,373

 
5,377

 
1986
 
 5-40 yrs.
5332 Avion Park
 
Office
 
 
 

 

 
6,310

 
32,444

 
6,310

 
32,444

 
38,754

 
3,099

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

 
102,138

 

 
22,917

 
1,980

 
125,055

 
127,035

 
17,025

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

 

 

 

 
2,225

 

 
2,225

 

 
N/A
 
N/A
 
 
 
 

 
$
613,041

 
$
3,004,028

 
$
6,032

 
$
2,153,703

 
$
619,073

 
$
5,157,731

 
$
5,776,804

 
$
1,405,341

 
 
 
 
__________
(1)
The cost basis for income tax purposes of aggregate land and buildings and tenant improvements as of December 31, 2019 is $5.5 billion. This amount excludes approximately $370.8 million of cost basis attributable to a property held in a variable interest entity at December 31, 2019 to facilitate a potential 1031 exchange.
v3.19.3.a.u2
Description of Business and Significant Accounting Policies (Policies)
12 Months Ended
Dec. 31, 2019
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, 2019, three properties owned through a joint venture investment were consolidated. We also consolidate those entities deemed to be variable interest entities in which we are determined to be the primary beneficiary. At December 31, 2019, we have involvement with, and are the primary beneficiary in, an entity that we concluded to be a variable interest entity (see Note 4).

In addition, during 2019, we acquired a building using a special purpose entity owned by a qualified intermediary to facilitate a potential Section 1031 reverse exchange under the Internal Revenue Code. To realize the tax deferral available under the Section 1031 exchange, we must complete the Section 1031 exchange, and take title to the to-be-exchanged building within 180 days of the acquisition date. We have determined that this entity is a variable interest entity of which we are the primary beneficiary and therefore, we consolidate this entity. As of December 31, 2019, this variable interest entity had total assets, liabilities and cash flows of $425.0 million, $24.0 million and $2.5 million, respectively.

All intercompany transactions and accounts have been eliminated.

Certain amounts within the Consolidated Statements of Income for the years ended December 31, 2018 and 2017 were removed and/or combined to conform to the current year presentation.

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
Insurance
 
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, 2019, a reserve of $0.6 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 $214.7 million, $191.0 million and $184.4 million for the years ended December 31, 2019, 2018 and 2017, 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.

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 accounted for as asset acquisitions, 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 and other identifiable intangible assets and assumed liabilities. We allocate fair value on a relative basis 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.

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 our evaluation of events or changes in circumstances indicate that the carrying value may not be recoverable, 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
 
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.
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.
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, 2019, properties that we wholly own were leased to 1,785 customers. The geographic locations that comprise greater than 10.0% of our rental and other revenues are Atlanta, Nashville, Raleigh and Tampa. Our customers engage in a wide variety of businesses. No single customer generated more than 5% of our consolidated revenues during 2019.
 
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, which consists of secured and unsecured long-term financings, 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. Changes in the fair value of derivatives designated and that qualify as cash flow hedges are recorded in accumulated other comprehensive income/(loss) and are subsequently reclassified into interest expense as interest payments are made on our debt.
 
We account for terminated derivative instruments by recognizing the related accumulated other 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 other 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 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. We adopted the ASU as of January 1, 2019 with no 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.
On January 1, 2019, we adopted Accounting Standards Codification Topic 842 “Leases” (“ASC 842”), which supersedes Accounting Standards Codification Topic 840 “Leases” (“ASC 840”). Information in this Note 2 with respect to our leases and lease related costs as both lessee and lessor and lease related receivables as lessor is presented under ASC 842 as of and for the year ended December 31, 2019 and under ASC 840 as of and for the year ended December 31, 2018.

We adopted ASC 842 using the modified retrospective approach whereby the cumulative effect of adoption was recognized on the adoption date and prior periods were not restated. There was no net cumulative effect adjustment to retained earnings as of January 1, 2019 as a result of this adoption. ASC 842 sets out the principles for the recognition, measurement, presentation and disclosure of leases for both lessees and lessors. We operate as both a lessor and a lessee. As a lessor, we are required under ASC 842 to account for leases using an approach that is substantially equivalent to ASC 840's guidance for operating leases and other leases such as sales-type leases and direct financing leases. In addition, ASC 842 requires lessors to capitalize and amortize only incremental direct leasing costs. As a lessee, we are required under the new standard to apply a dual approach, classifying leases, such as ground leases, as either finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase. This classification determines whether lease expense is recognized based on an effective interest method or on a straight-line basis over the term of the lease. ASC 842 also requires lessees 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. We have also elected the practical expedient not to recognize right of use assets and lease liabilities for leases with a term of a year or less.
 
On adoption of the standard, we elected the package of practical expedients provided for in ASC 842, including:
 
No reassessment of whether any expired or existing contracts were or contained leases;
 
No reassessment of the lease classification for any expired or existing leases; and
 
No reassessment of initial direct costs for any existing leases.
 
The package of practical expedients was made as a single election and was consistently applied to all existing leases as of January 1, 2019. We also elected the practical expedient provided to lessors in a subsequent amendment to ASC 842 that removed the requirement to separate lease and nonlease components, provided certain conditions were met.
v3.19.3.a.u2
Leases Leases (Policies)
12 Months Ended
Dec. 31, 2019
Leases [Abstract]  
Recently Issued Accounting Standards
Recently Issued Accounting Standards
 
The Financial Accounting Standards Board ("FASB") issued an accounting standards update ("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. We adopted the ASU as of January 1, 2019 with no 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.
On January 1, 2019, we adopted Accounting Standards Codification Topic 842 “Leases” (“ASC 842”), which supersedes Accounting Standards Codification Topic 840 “Leases” (“ASC 840”). Information in this Note 2 with respect to our leases and lease related costs as both lessee and lessor and lease related receivables as lessor is presented under ASC 842 as of and for the year ended December 31, 2019 and under ASC 840 as of and for the year ended December 31, 2018.

We adopted ASC 842 using the modified retrospective approach whereby the cumulative effect of adoption was recognized on the adoption date and prior periods were not restated. There was no net cumulative effect adjustment to retained earnings as of January 1, 2019 as a result of this adoption. ASC 842 sets out the principles for the recognition, measurement, presentation and disclosure of leases for both lessees and lessors. We operate as both a lessor and a lessee. As a lessor, we are required under ASC 842 to account for leases using an approach that is substantially equivalent to ASC 840's guidance for operating leases and other leases such as sales-type leases and direct financing leases. In addition, ASC 842 requires lessors to capitalize and amortize only incremental direct leasing costs. As a lessee, we are required under the new standard to apply a dual approach, classifying leases, such as ground leases, as either finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase. This classification determines whether lease expense is recognized based on an effective interest method or on a straight-line basis over the term of the lease. ASC 842 also requires lessees 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. We have also elected the practical expedient not to recognize right of use assets and lease liabilities for leases with a term of a year or less.
 
On adoption of the standard, we elected the package of practical expedients provided for in ASC 842, including:
 
No reassessment of whether any expired or existing contracts were or contained leases;
 
No reassessment of the lease classification for any expired or existing leases; and
 
No reassessment of initial direct costs for any existing leases.
 
The package of practical expedients was made as a single election and was consistently applied to all existing leases as of January 1, 2019. We also elected the practical expedient provided to lessors in a subsequent amendment to ASC 842 that removed the requirement to separate lease and nonlease components, provided certain conditions were met.
v3.19.3.a.u2
Leases (Tables)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Leases [Abstract]    
Lessor, Operating Leases, ASC 842 Disclosure The following table sets forth the undiscounted cash flows for future minimum base rents to be received from customers for leases in effect at December 31, 2019 for the properties that we wholly own:
 
2020
 
$
647,558

2021
 
621,080

2022
 
596,698

2023
 
537,225

2024
 
474,258

Thereafter
 
2,213,294

 
 
$
5,090,113


 
Allowance For Doubtful Accounts  
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


Lessor, Operating Leases, ASC 840 Disclosure  
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


Lessee, Operating Leases, ASC 842 Disclosure
The following table sets forth the undiscounted cash flows of our scheduled obligations for future minimum payments on operating ground leases at December 31, 2019 and a reconciliation of those cash flows to the operating lease liability at December 31, 2019:
 
2020
 
$
2,086

2021
 
2,127

2022
 
2,169

2023
 
2,167

2024
 
2,123

Thereafter
 
83,697

 
 
94,369

Discount
 
(59,470
)
Lease liability
 
$
34,899


 
Lessee, Operating Leases, ASC 840 Disclosure  
The following table sets forth our scheduled obligations for future minimum payments on operating ground leases at December 31, 2018:
 
2019
 
$
2,184

2020
 
2,223

2021
 
2,263

2022
 
2,305

2023
 
2,308

Thereafter
 
86,577

 
 
$
97,860


v3.19.3.a.u2
Investments In and Advances To Affiliates (Tables)
12 Months Ended
Dec. 31, 2019
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, 2019:
 
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%

Schedule of Variable Interest Entities The following table sets forth the assets and liabilities of the Midtown One joint venture included on our Consolidated Balance Sheets:
 
 
December 31,
2019
Development in-process
$
22,380

Accounts payable, accrued expenses and other liabilities
$
1,162


v3.19.3.a.u2
Intangible Assets and Below Market Lease Liabilities (Tables)
12 Months Ended
Dec. 31, 2019
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,
 
2019
 
2018
Assets:
 
 
 
Deferred leasing costs (including lease incentives and above market lease and in-place lease acquisition-related intangible assets)
$
377,472

 
$
344,548

Less accumulated amortization
(146,125
)
 
(149,275
)
 
$
231,347

 
$
195,273

Liabilities (in accounts payable, accrued expenses and other liabilities):
 
 
 
Acquisition-related below market lease liabilities
$
65,971

 
$
57,955

Less accumulated amortization
(34,014
)
 
(32,307
)
 
$
31,957

 
$
25,648

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,
 
2019
 
2018
 
2017
Amortization of deferred leasing costs and acquisition-related intangible assets (in depreciation and amortization)
$
37,386

 
$
36,486

 
$
41,187

Amortization of lease incentives (in rental and other revenues)
$
4,281

 
$
1,908

 
$
1,765

Amortization of acquisition-related intangible assets (in rental and other revenues)
$
1,290

 
$
1,677

 
$
2,921

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)
$
(6,633
)
 
$
(6,085
)
 
$
(6,415
)

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)
2020
 
$
38,376

 
$
1,599

 
$
1,095

 
$
510

 
$
(5,933
)
2021
 
33,581

 
1,353

 
777

 

 
(5,033
)
2022
 
29,200

 
1,119

 
608

 

 
(3,985
)
2023
 
25,683

 
1,040

 
454

 

 
(3,607
)
2024
 
22,631

 
890

 
380

 

 
(2,939
)
Thereafter
 
65,964

 
3,914

 
2,173

 

 
(10,460
)
 
 
$
215,435

 
$
9,915

 
$
5,487

 
$
510

 
$
(31,957
)
Weighted average remaining amortization periods as of December 31, 2019 (in years)
 
8.4

 
9.2

 
9.4

 
1.0

 
8.8


Total Intangible Assets and Below Market Lease Liabilities from Acquisition Activity
The following table sets forth the intangible assets acquired and below market lease liabilities assumed as a result of 2019 acquisition activity:
 
 
 
Acquisition-Related Intangible Assets (amortized in Rental and Other Revenues)
 
Acquisition-Related Intangible Assets (amortized in Depreciation and Amortization)
 
Acquisition-Related Below Market Lease Liabilities (amortized in Rental and Other Revenues)
Amount recorded at acquisition
 
$
2,059

 
$
35,637

 
$
(12,943
)
Weighted average remaining amortization periods as of December 31, 2019 (in years)
 
14.4

 
14.7

 
14.3


v3.19.3.a.u2
Mortgages and Notes Payable (Tables)
12 Months Ended
Dec. 31, 2019
Debt Disclosure [Abstract]  
Schedule of Consolidated Mortgages and Notes Payable
Our mortgages and notes payable consist of the following:
 
 
December 31,
 
2019
 
2018
Secured indebtedness:
 
 
 
4.00% mortgage loan due 2029 (1)
$
95,303

 
$
97,179

 
95,303

 
97,179

Unsecured indebtedness:
 
 
 
3.20% (3.363% effective rate) notes due 2021 (2)
299,369

 
298,936

3.625% (3.752% effective rate) notes due 2023 (3)
249,201

 
248,938

3.875% (4.038% effective rate) notes due 2027 (4)
297,134

 
296,734

4.125% (4.271% effective rate) notes due 2028 (5)
346,621

 
346,208

4.20% (4.234% effective rate) notes due 2029 (6)

349,091

 

3.050% (3.079% effective rate) notes due 2030 (7)

399,009

 

Variable rate term loan due 2020 (8)

 
225,000

Variable rate term loan due 2022 (9)
100,000

 
200,000

Variable rate term loan due 2022 (10)
200,000

 
200,000

Revolving credit facility due 2022 (11)
221,000

 
182,000

 
2,461,425

 
1,997,816

Less-unamortized debt issuance costs
(13,018
)
 
(9,164
)
Total mortgages and notes payable, net
$
2,543,710

 
$
2,085,831

__________
(1)
Our secured mortgage loan was collateralized by real estate assets with an undepreciated book value of $147.1 million at December 31, 2019. We paid down $1.9 million of secured loan balances through principal amortization during 2019.
(2)
Net of unamortized original issuance discount of $0.6 million and $1.1 million as of December 31, 2019 and 2018, respectively.
(3)
Net of unamortized original issuance discount of $0.8 million and $1.1 million as of December 31, 2019 and 2018, respectively.
(4)
Net of unamortized original issuance discount of $2.9 million and $3.3 million as of December 31, 2019 and 2018, respectively.
(5)
Net of unamortized original issuance discount of $3.4 million and $3.8 million as of December 31, 2019 and 2018, respectively.
(6)
Net of unamortized original issuance discount of $0.9 million as of December 31, 2019.
(7)
Net of unamortized original issuance discount of $1.0 million as of December 31, 2019.
(8)
This debt was repaid in 2019.
(9)
As more fully described in Note 7, 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 $50.0 million was 2.81% at December 31, 2019.
(10)
The interest rate was 2.90% at December 31, 2019.
(11)
The interest rate was 2.73% at December 31, 2019.
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, 2019:
 
Years Ending December 31,
 
Principal Amount
2020
 
$
248

2021
 
300,560

2022
 
521,842

2023
 
251,180

2024
 
1,281

Thereafter
 
1,481,617

Less-unamortized debt issuance costs
 
(13,018
)
 
 
$
2,543,710

 
v3.19.3.a.u2
Derivative Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2019
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,
 
2019
 
2018
Derivatives:
 
 
 
Derivatives designated as cash flow hedges in prepaid expenses and other assets:
 
 
 
Interest rate swaps
$

 
$
1,146

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

$
154

 
$
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/(loss) and interest expense:

 
Year Ended December 31,
 
2019
 
2018
 
2017
Derivatives Designated as Cash Flow Hedges:
 
 
 
 
 
Amount of unrealized gains/(losses) recognized in accumulated other comprehensive income/(loss) on derivatives:
 
 
 
 
 
Interest rate swaps
$
(9,134
)
 
$
4,161

 
$
1,732

Amount of (gains)/losses reclassified out of accumulated other comprehensive income/(loss) into interest expense:
 
 
 
 
 
Interest rate swaps
$
(1,250
)
 
$
(2,086
)
 
$
1,157


v3.19.3.a.u2
Noncontrolling Interests (Tables) - Highwoods Properties, Inc. [Member]
12 Months Ended
Dec. 31, 2019
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,
 
2019
 
2018
Beginning noncontrolling interests in the Operating Partnership
$
105,960

 
$
144,009

Adjustment of noncontrolling interests in the Operating Partnership to fair value
29,557

 
(33,427
)
Conversions of Common Units to Common Stock
(663
)
 
(4,043
)
Net income attributable to noncontrolling interests in the Operating Partnership
3,551

 
4,588

Distributions to noncontrolling interests in the Operating Partnership
(5,189
)
 
(5,167
)
Total noncontrolling interests in the Operating Partnership
$
133,216

 
$
105,960


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,
 
2019
 
2018
 
2017
Net income available for common stockholders
$
134,430

 
$
169,343

 
$
182,873

Increase in additional paid in capital from conversions of Common Units to Common Stock
663

 
4,043

 
511

Change from net income available for common stockholders and transfers from noncontrolling interests
$
135,093

 
$
173,386

 
$
183,384


v3.19.3.a.u2
Disclosure About Fair Value of Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2019
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, 2019:
 
 
 
 
 
 
 
Assets:
 
 
 
 
 
 
 
Mortgages and notes receivable, at fair value (1)
$
1,501

 
$

 
$
1,501

 
$

Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets)
2,345

 
2,345

 

 

Total Assets
$
3,846

 
$
2,345

 
$
1,501

 
$

Noncontrolling Interests in the Operating Partnership
$
133,216

 
$
133,216

 
$

 
$

Liabilities:
 
 
 
 
 
 
 
Mortgages and notes payable, net, at fair value (1)
$
2,615,776

 
$

 
$
2,615,776

 
$

Interest rate swaps (in accounts payable, accrued expenses and other liabilities)
154

 

 
154

 

Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities)
2,345

 
2,345

 

 

Total Liabilities
$
2,618,275

 
$
2,345

 
$
2,615,930

 
$

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

 
$


__________
(1)    Amounts recorded at historical cost on our Consolidated Balance Sheets at December 31, 2019 and 2018.
v3.19.3.a.u2
Equity (Tables)
12 Months Ended
Dec. 31, 2019
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, 2019
 
 
 
 
 
 
 
 
 
 
 
 
8.625% Series A Cumulative Redeemable
 
2/12/1997
 
29

 
$
28,859

 
$
1,000

 
2/12/2027
 
$
86.25

December 31, 2018
 
 
 
 
 
 
 
 
 
 
 
 
8.625% Series A Cumulative Redeemable
 
2/12/1997
 
29

 
$
28,877

 
$
1,000

 
2/12/2027
 
$
86.25


Common Stock [Member]  
Class of Stock [Line Items]  
Schedule Of Components Of Taxability Of Company Dividends [Table Text Block]
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,
 
2019
 
2018
 
2017
Ordinary dividend
$
1.64

 
$
1.48

 
$
1.50

Capital gains
0.13

 
0.31

 
0.32

Return of capital
0.13

 
0.06

 

Total
$
1.90

 
$
1.85

 
$
1.82



Preferred Stock [Member]  
Class of Stock [Line Items]  
Schedule Of Components Of Taxability Of Company Dividends [Table Text Block]
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,
 
2019
 
2018
 
2017
8.625% Series A Cumulative Redeemable:
 
 
 
 
 
Ordinary dividend
$
79.90

 
$
71.22

 
$
71.00

Capital gains
6.35

 
15.03

 
15.25

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, 2019
 
 
 
 
 
 
 
 
 
 
 
 
8.625% Series A Cumulative Redeemable
 
2/12/1997
 
29

 
$
28,859

 
$
1,000

 
2/12/2027
 
$
86.25

December 31, 2018
 
 
 
 
 
 
 
 
 
 
 
 
8.625% Series A Cumulative Redeemable
 
2/12/1997
 
29

 
$
28,877

 
$
1,000

 
2/12/2027
 
$
86.25


v3.19.3.a.u2
Employee Benefit Plans (Tables)
12 Months Ended
Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Share-based Compensation, Shares Reserved for Future Issuance 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,
 
2019
 
2018
Outstanding stock options and warrants
599,902

 
611,518

Possible future issuance under equity incentive plans
2,016,659

 
2,188,696

 
2,616,561

 
2,800,214


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, 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
596,518

 
45.67

Exercised
(9,026
)
 
39.53

Forfeited
(2,590
)
 
48.79

Stock options outstanding at December 31, 2019 (1) (2)
584,902

 
$
45.75

__________
(1)
The outstanding options at December 31, 2019 had a weighted average remaining life of 5.8 years.
(2)
The Company had 443,783 options exercisable at December 31, 2019 with a weighted average exercise price of $44.78, weighted average remaining life of 5.6 years and intrinsic value of $2.1 million. Of these exercisable options, 84,374 had exercise prices higher than the market price of our Common Stock at December 31, 2019.
Schedule of NonQualified Deferred Compensation Liability
The following table sets forth our deferred compensation liability:
 
 
Year Ended December 31,
 
2019
 
2018
 
2017
Beginning deferred compensation liability
$
1,849

 
$
2,388

 
$
2,451

Mark-to-market adjustment to deferred compensation (in general and administrative expenses)
496

 
(182
)
 
492

Distributions from deferred compensation plans

 
(357
)
 
(555
)
Total deferred compensation liability
$
2,345

 
$
1,849

 
$
2,388


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 value of options granted during 2017 was $6.72 per option. The fair value of the options granted was determined at the grant date using the following assumptions:

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

Awarded and issued (1)
103,590

 
45.98

Vested (2)
(73,036
)
 
45.79

Forfeited
(3,642
)
 
46.07

Restricted shares outstanding at December 31, 2019
218,151

 
$
45.73

__________
(1)
The weighted average fair value at grant date of time-based restricted stock issued during the years ended December 31, 2019, 2018 and 2017 was $4.8 million, $4.1 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, 2019, 2018 and 2017 was $3.3 million, $3.2 million and $4.1 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:
 
 
2019
 
2018
 
2017
Risk free interest rate (1) 
2.4
%
 
2.3
%
 
1.6
%
Common stock dividend yield (2) 
4.4
%
 
3.9
%
 
3.5
%
Expected volatility (3) 
27.3
%
 
41.1
%
 
42.8
%
__________
(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, 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

Awarded and issued (1)
87,344

 
39.42

Vested (2)
(45,901
)
 
43.68

Forfeited (4)
(12,689
)
 
43.58

Restricted shares outstanding at December 31, 2019
208,848

 
$
42.22

__________
(1)
The fair value at grant date of total return-based restricted stock issued during the years ended December 31, 2019, 2018 and 2017 was $3.4 million, $3.2 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, 2019, 2018 and 2017 was $2.1 million, $1.8 million and $5.6 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 amount includes 34,669 additional shares that were issued at the end of the applicable measurement period because actual performance exceeded certain levels of performance.
(4)
The 2019 and 2018 amounts include 9,521 and 13,707 shares, respectively, that were forfeited at the end of the applicable measurement period because the applicable total return did not meet the target level.

v3.19.3.a.u2
Accumulated Other Comprehensive Income/(Loss) (Tables)
12 Months Ended
Dec. 31, 2019
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/(loss):
 
 
December 31,
 
2019
 
2018
Cash flow hedges:
 
 
 
Beginning balance
$
9,913

 
$
7,838

Unrealized gains/(losses) on cash flow hedges
(9,134
)
 
4,161

Amortization of cash flow hedges (1)
(1,250
)
 
(2,086
)
Total accumulated other comprehensive income/(loss)
$
(471
)
 
$
9,913


__________
(1)
Amounts reclassified out of accumulated other comprehensive income/(loss) into interest expense.
v3.19.3.a.u2
Real Estate and Other Assets Held For Sale (Tables)
12 Months Ended
Dec. 31, 2019
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, 2019 and 2018, which are considered non-core:
 
 
December 31,
 
2019
 
2018
Assets:
 
 
 
Land
$
4,815

 
$

Buildings and tenant improvements
29,581

 

Less-accumulated depreciation
(16,775
)
 

Net real estate assets
17,621

 

Accrued straight-line rents receivable
2,073

 

Deferred leasing costs, net
1,096

 

Real estate and other assets, net, held for sale
$
20,790

 
$


v3.19.3.a.u2
Earnings Per Share and Per Unit (Tables)
12 Months Ended
Dec. 31, 2019
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,
 
2019
 
2018
 
2017
Earnings per Common Share - basic:
 
 
 
 
 
Numerator:
 
 
 
 
 
Net income
$
141,683

 
$
177,630

 
$
191,663

Net (income) attributable to noncontrolling interests in the Operating Partnership
(3,551
)
 
(4,588
)
 
(5,059
)
Net (income) attributable to noncontrolling interests in consolidated affiliates
(1,214
)
 
(1,207
)
 
(1,239
)
Dividends on Preferred Stock
(2,488
)
 
(2,492
)
 
(2,492
)
Net income available for common stockholders
$
134,430

 
$
169,343

 
$
182,873

Denominator:
 
 
 
 
 
Denominator for basic earnings per Common Share – weighted average shares (1)
103,692

 
103,439

 
102,682

Net income available for common stockholders
$
1.30

 
$
1.64

 
$
1.78

Earnings per Common Share - diluted:
 
 
 
 
 
Numerator:
 
 
 
 
 
Net income
$
141,683

 
$
177,630

 
$
191,663

Net (income) attributable to noncontrolling interests in consolidated affiliates
(1,214
)
 
(1,207
)
 
(1,239
)
Dividends on Preferred Stock
(2,488
)
 
(2,492
)
 
(2,492
)
Net income available for common stockholders before net (income) attributable to noncontrolling interests in the Operating Partnership
$
137,981

 
$
173,931

 
$
187,932

Denominator:
 
 
 
 
 
Denominator for basic earnings per Common Share – weighted average shares (1)
103,692

 
103,439

 
102,682

Add:
 
 
 
 
 
Stock options using the treasury method
22

 
33

 
79

Noncontrolling interests Common Units
2,731

 
2,796

 
2,833

Denominator for diluted earnings per Common Share – adjusted weighted average shares and assumed conversions
106,445

 
106,268

 
105,594

Net income available for common stockholders
$
1.30

 
$
1.64

 
$
1.78

__________
(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,
 
2019
 
2018
 
2017
Earnings per Common Unit - basic:
 
 
 
 
 
Numerator:
 
 
 
 
 
Net income
$
141,683

 
$
177,630

 
$
191,663

Net (income) attributable to noncontrolling interests in consolidated affiliates
(1,214
)
 
(1,207
)
 
(1,239
)
Distributions on Preferred Units
(2,488
)
 
(2,492
)
 
(2,492
)
Net income available for common unitholders
$
137,981

 
$
173,931

 
$
187,932

Denominator:
 
 
 
 
 
Denominator for basic earnings per Common Unit – weighted average units (1)
106,014

 
105,826

 
105,106

Net income available for common unitholders
$
1.30

 
$
1.64

 
$
1.79

Earnings per Common Unit - diluted:
 
 
 
 
 
Numerator:
 
 
 
 
 
Net income
$
141,683

 
$
177,630

 
$
191,663

Net (income) attributable to noncontrolling interests in consolidated affiliates
(1,214
)
 
(1,207
)
 
(1,239
)
Distributions on Preferred Units
(2,488
)
 
(2,492
)
 
(2,492
)
Net income available for common unitholders
$
137,981

 
$
173,931

 
$
187,932

Denominator:
 
 
 
 
 
Denominator for basic earnings per Common Unit – weighted average units (1)
106,014

 
105,826

 
105,106

Add:
 
 
 
 
 
Stock options using the treasury method
22

 
33

 
79

Denominator for diluted earnings per Common Unit – adjusted weighted average units and assumed conversions
106,036

 
105,859

 
105,185

Net income available for common unitholders
$
1.30

 
$
1.64

 
$
1.79

__________
(1)
Includes all unvested restricted stock where distributions on such restricted stock are non-forfeitable.
v3.19.3.a.u2
Income Taxes (Tables)
12 Months Ended
Dec. 31, 2019
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,
 
2019
 
2018
 
2017
Current tax expense/(benefit):
 
 
 
 
 
Federal
$
202

 
$
133

 
$
(177
)
State
148

 
112

 
105

 
350

 
245

 
(72
)
Deferred tax expense/(benefit):
 
 
 
 
 
Federal
14

 
(95
)
 
223

State
(120
)
 
(68
)
 
(9
)
 
(106
)
 
(163
)
 
214

Total income tax expense
$
244

 
$
82

 
$
142


v3.19.3.a.u2
Segment Information (Tables)
12 Months Ended
Dec. 31, 2019
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,
 
2019
 
2018
 
2017
Rental and Other Revenues:
 
 
 
 
 
Office:
 
 
 
 
 
Atlanta
$
151,279

 
$
141,337

 
$
140,323

Charlotte
4,650

 

 

Greensboro
22,154

 
22,322

 
21,453

Memphis
39,494

 
40,230

 
45,430

Nashville
133,867

 
121,836

 
111,506

Orlando
52,679

 
53,771

 
51,236

Pittsburgh
60,755

 
61,177

 
59,103

Raleigh
122,173

 
118,352

 
119,254

Richmond
49,428

 
45,729

 
43,959

Tampa
86,431

 
102,404

 
97,524

Total Office Segment
722,910

 
707,158

 
689,788

Other
13,069

 
12,877

 
12,949

Total Rental and Other Revenues
$
735,979

 
$
720,035

 
$
702,737


 
Year Ended December 31,
 
2019
 
2018
 
2017
Net Operating Income:
 
 
 
 
 
Office:
 
 
 
 
 
Atlanta
$
97,019

 
$
87,503

 
$
89,575

Charlotte
3,791

 

 

Greensboro
14,183

 
14,275

 
13,612

Memphis
24,790

 
25,659

 
28,128

Nashville
97,386

 
88,554

 
81,204

Orlando
32,062

 
32,841

 
30,526

Pittsburgh
36,249

 
36,233

 
34,784

Raleigh
88,402

 
86,053

 
86,475

Richmond
33,756

 
31,276

 
29,946

Tampa
50,339

 
65,819

 
62,378

Total Office Segment
477,977

 
468,213

 
456,628

Other
9,491

 
9,407

 
9,221

Total Net Operating Income
487,468

 
477,620

 
465,849

Reconciliation to net income:
 
 
 
 
 
Depreciation and amortization
(254,504
)
 
(229,955
)
 
(227,832
)
Impairments of real estate assets
(5,849
)
 
(423
)
 
(1,445
)
General and administrative expenses
(44,067
)
 
(40,006
)
 
(39,648
)
Interest expense
(81,648
)
 
(71,422
)
 
(69,105
)
Other income/(loss)
(2,510
)
 
1,940

 
2,283

Gains on disposition of property
39,517

 
37,638

 
54,157

Equity in earnings of unconsolidated affiliates
3,276

 
2,238

 
7,404

Net income
$
141,683

 
$
177,630

 
$
191,663



 
December 31,
 
2019
 
2018
Total Assets:
 
 
 
Office:
 
 
 
Atlanta
$
1,040,869

 
$
1,047,850

Charlotte
425,045

 

Greensboro
114,030

 
118,611

Memphis
148,832

 
213,276

Nashville
1,045,125

 
937,732

Orlando
289,743

 
306,370

Pittsburgh
323,792

 
329,918

Raleigh
830,128

 
792,464

Richmond
246,546

 
248,669

Tampa
521,620

 
522,263

Total Office Segment
4,985,730

 
4,517,153

Other
152,514

 
157,856

Total Assets
$
5,138,244

 
$
4,675,009


v3.19.3.a.u2
Quarterly Financial Data (Unaudited) (Tables)
12 Months Ended
Dec. 31, 2019
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, 2019
 
First
Quarter
 
Second
Quarter
 
Third
Quarter
 
Fourth
Quarter
 
Total
Rental and other revenues
$
172,363

 
$
184,070

 
$
187,475

 
$
192,071

 
$
735,979

 
 
 
 
 
 
 
 
 
 
Net income
8,386

 
41,394

 
29,557

 
62,346

 
141,683

Net (income) attributable to noncontrolling interests in the Operating Partnership
(193
)
 
(1,044
)
 
(737
)
 
(1,577
)
 
(3,551
)
Net (income) attributable to noncontrolling interests in consolidated affiliates
(316
)
 
(306
)
 
(297
)
 
(295
)
 
(1,214
)
Dividends on Preferred Stock
(622
)
 
(622
)
 
(622
)
 
(622
)
 
(2,488
)
Net income available for common stockholders
$
7,255

 
$
39,422

 
$
27,901

 
$
59,852

 
$
134,430

Earnings per Common Share – basic:
 
 
 
 
 
 
 
 
 
Net income available for common stockholders
$
0.07

 
$
0.38

 
$
0.27

 
$
0.58

 
$
1.30

Earnings per Common Share – diluted:
 
 
 
 
 
 
 
 
 
Net income available for common stockholders
$
0.07

 
$
0.38

 
$
0.27

 
$
0.58

 
$
1.30



 
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


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, 2019
 
First
Quarter
 
Second
Quarter
 
Third
Quarter
 
Fourth
Quarter
 
Total
Rental and other revenues
$
172,363

 
$
184,070

 
$
187,475

 
$
192,071

 
$
735,979

 
 
 
 
 
 
 
 
 
 
Net income
8,386

 
41,394

 
29,557

 
62,346

 
141,683

Net (income) attributable to noncontrolling interests in consolidated affiliates
(316
)
 
(306
)
 
(297
)
 
(295
)
 
(1,214
)
Distributions on Preferred Units
(622
)
 
(622
)
 
(622
)
 
(622
)
 
(2,488
)
Net income available for common unitholders
$
7,448

 
$
40,466

 
$
28,638

 
$
61,429

 
$
137,981

Earnings per Common Unit – basic:
 
 
 
 
 
 
 
 
 
Net income available for common unitholders
$
0.07

 
$
0.38

 
$
0.27

 
$
0.58

 
$
1.30

Earnings per Common Unit – diluted:
 
 
 
 
 
 
 
 
 
Net income available for common unitholders
$
0.07

 
$
0.38

 
$
0.27

 
$
0.58

 
$
1.30



 
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



v3.19.3.a.u2
Description of Business and Significant Accounting Policies (Details)
$ in Thousands
1 Months Ended 3 Months Ended 12 Months Ended
Jan. 30, 2020
USD ($)
propertyUnit
Dec. 31, 2019
USD ($)
a
ft²
propertyUnit
customers
shares
Sep. 30, 2019
USD ($)
phase
Mar. 31, 2019
USD ($)
ft²
Dec. 31, 2019
USD ($)
a
ft²
propertyUnit
customers
shares
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Jun. 30, 2019
ft²
Description of Business [Abstract]                
Rentable square feet of commercial real estate (in square feet) | ft²   31,700,000     31,700,000      
Rentable square feet of commercial real estate under development (in square feet) | ft²   1,200,000     1,200,000      
Undeveloped land suitable for future development (in acres) | a   275     275      
Number of common units required to convert to one share of common stock (in shares) | shares   1     1      
Number of trading days preceeding Redemption Notice Date (in days)         10 days      
Consolidated in-service office properties not wholly owned (in units) | propertyUnit   3     3      
Self insurance liability   $ 600     $ 600      
Credit losses on operating lease receivables         9,861 $ 1,212 $ 1,508  
Write-offs of lease incentives         (505) (1,943) (1,172)  
Write-offs of notes receivable         4,087 0 0  
Write-offs of tenant improvements and deferred leasing costs         254,504 229,955 227,832  
Real estate assets, depreciation expense         $ 214,700 191,000 184,400  
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   1,785     1,785      
Percent of annualized cash rental revenue derived from geographic locations   10.00%     10.00%      
Limit of consolidated revenue generated by any single customer         5.00%      
Variable Interest Entity, Primary Beneficiary [Member]                
Description of Business [Abstract]                
Rentable square feet of commercial real estate under development (in square feet) | ft²               150,000
VIE like-kind exchange agreement (in days)         180 days      
VIE total assets   $ 425,000     $ 425,000      
VIE total liabilities   $ 24,000     24,000      
VIe total cash flows         $ 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      
Submarket Acquisition [Member]                
Description of Business [Abstract]                
Rentable square feet of commercial real estate (in square feet) | ft²   841,000     841,000      
Total investment cost of acquisition   $ 436,000     $ 399,100      
Division Exit [Member]                
Description of Business [Abstract]                
Number of plan phases (in ones) | phase     2          
Purchase price of real estate     $ 436,000          
Expected severance costs         $ 1,800      
LSI Ceased Operations [Member]                
Description of Business [Abstract]                
Rentable square feet of commercial real estate (in square feet) | ft²       176,000        
Credit losses on operating lease receivables       $ 5,600        
Write-offs of lease incentives       2,300        
Write-offs of notes receivable       4,100        
Write-offs of tenant improvements and deferred leasing costs       $ 11,600        
Highwoods Properties, Inc. [Member]                
Description of Business [Abstract]                
Common Units of partnership owned (in shares) | shares   103,300,000     103,300,000      
Percentage of ownership of Common Units   97.40%     97.40%      
Common units redeemed for a like number of common shares of stock (in shares) | shares         15,000      
Highwoods Realty Limited Partnership [Member]                
Description of Business [Abstract]                
Common Units of partnership not owned by the Company (in shares) | shares   2,700,000     2,700,000      
Credit losses on operating lease receivables         $ 9,861 1,212 1,508  
Write-offs of lease incentives         (505) (1,943) (1,172)  
Write-offs of notes receivable         4,087 0 0  
Write-offs of tenant improvements and deferred leasing costs         $ 254,504 $ 229,955 $ 227,832  
Subsequent Event [Member] | Division Exit [Member]                
Description of Business [Abstract]                
Purchase price of real estate $ 193,400              
Number of buildings sold | propertyUnit 35              
v3.19.3.a.u2
Leases ASC 842 (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
propertyUnit
Lessor Disclosure [Abstract]  
Rental and other revenues related to operating lease payments $ 723,100
Variable lease payments 65,400
Operating leases, scheduled future minimum payments receivable [Abstract]  
2020 647,558
2021 621,080
2022 596,698
2023 537,225
2024 474,258
Thereafter 2,213,294
Operating leases, total future minimum payments receivable due $ 5,090,113
Lessee Disclosure [Abstract]  
Number of properties subject to ground leases | propertyUnit 20
Weighted average remaining term of ground leases (in years) 52 years
Operating lease liability upon initial adoption $ 35,300
Right of use asset upon initial adoption $ 29,700
Operating lease discount rate (in hundredths) 4.50%
Operating ground lease expense $ 2,500
Operating ground lease payments 2,200
Operating ground lease liabilities, scheduled future minimum payments [Abstract]  
2020 2,086
2021 2,127
2022 2,169
2023 2,167
2024 2,123
Thereafter 83,697
Operating ground lease liability, total future minimum payments 94,369
Operating lease liability discount (59,470)
Operating lease liability $ 34,899
Minimum [Member]  
Lessor Disclosure [Abstract]  
Operating leases, term of leases 3 years
Maximum [Member]  
Lessor Disclosure [Abstract]  
Operating leases, term of leases 10 years
v3.19.3.a.u2
Leases ASC 840 (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Allowance For Doubtful Accounts [Roll Forward]    
Allowance for doubtful accounts, beginning balance $ 1,644 $ 1,421
Additions to allowance for doubtful accounts 1,568 2,003
Deductions to allowance for doubtful accounts (1,361) (1,780)
Allowance for doubtful accounts, ending balance 1,851 1,644
Operating leases, scheduled future minimum payments receivable [Abstract]    
2019 618,014  
2020 581,399  
2021 524,381  
2022 488,157  
2023 428,461  
Thereafter 2,068,891  
Operating leases, total future minimum payments receivable due 4,709,303  
Leases, Operating [Abstract]    
Total rental property expense recorded for operating ground leases 2,500 2,500
Operating ground leases, scheduled future minimum payments [Abstract]    
2019 2,184  
2020 2,223  
2021 2,263  
2022 2,305  
2023 2,308  
Thereafter 86,577  
Operating ground leases, total future minimum payments due 97,860  
Allowance for Doubtful Accounts - Straight Line Rent [Member]    
Allowance For Doubtful Accounts [Roll Forward]    
Allowance for doubtful accounts, beginning balance 819 692
Additions to allowance for doubtful accounts 599 1,503
Deductions to allowance for doubtful accounts (777) (1,376)
Allowance for doubtful accounts, ending balance 641 819
Allowance for Doubtful Accounts - Accounts Receivable [Member]    
Allowance For Doubtful Accounts [Roll Forward]    
Allowance for doubtful accounts, beginning balance 753 624
Additions to allowance for doubtful accounts 969 500
Deductions to allowance for doubtful accounts (556) (371)
Allowance for doubtful accounts, ending balance 1,166 753
Allowance for Doubtful Accounts - Notes Receivable [Member]    
Allowance For Doubtful Accounts [Roll Forward]    
Allowance for doubtful accounts, beginning balance 72 105
Additions to allowance for doubtful accounts 0 0
Deductions to allowance for doubtful accounts (28) (33)
Allowance for doubtful accounts, ending balance $ 44 $ 72
v3.19.3.a.u2
Real Estate Assets (Details)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2019
USD ($)
a
ft²
propertyUnit
parcel
Dec. 31, 2019
USD ($)
a
ft²
propertyUnit
parcel
Dec. 31, 2018
USD ($)
a
propertyUnit
parcel
Dec. 31, 2017
USD ($)
propertyUnit
Acquisitions [Abstract]        
Rentable square feet of commercial real estate (in square feet) | ft² 31,700,000 31,700,000    
Undeveloped land suitable for future development (in acres) | a 275 275    
Dispositions [Abstract]        
Gains on disposition of property   $ 39,517 $ 37,638 $ 54,157
Impairments [Abstract]        
Impairments of real estate assets   $ 5,849 $ 423 1,445
Submarket Acquisition [Member]        
Acquisitions [Abstract]        
Rentable square feet of commercial real estate (in square feet) | ft² 841,000 841,000    
Purchase price of acquisition $ 436,000 $ 399,100    
2019 Land Acquisitions [Member]        
Acquisitions [Abstract]        
Number of development parcels acquired (in parcels) | parcel 4 4    
Undeveloped land suitable for future development (in acres) | a 10 10    
Purchase price of acquisition   $ 12,400    
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  
Purchase price of acquisition     $ 50,600  
Fee Simple Title Raleigh, NC (03/2017) [Member]        
Acquisitions [Abstract]        
Purchase price of acquisition       $ 2,600
2019 Dispositions [Member]        
Dispositions [Abstract]        
Number of buildings sold | propertyUnit 6 6    
Purchase price of real estate   $ 136,400    
Gains on disposition of property   39,500    
2018 Dispositions [Member]        
Dispositions [Abstract]        
Number of buildings sold | propertyUnit     3  
Purchase price of real estate     $ 90,600  
Gains on disposition of property     37,600  
2017 Dispositions [Member]        
Dispositions [Abstract]        
Number of buildings sold | propertyUnit       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
2019 Impairments [Member]        
Impairments [Abstract]        
Impairments of real estate assets   $ 5,800    
2018 Impairments [Member]        
Impairments [Abstract]        
Impairments of real estate assets     $ 400  
2017 Impairments [Member]        
Impairments [Abstract]        
Impairments of real estate assets       $ 1,400
v3.19.3.a.u2
Investments In and Advances To Affiliates (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Schedule of Equity Method Investments [Line Items]      
Percentage of equity interest in joint ventures, maximum 50.00%    
Difference between cost of investments and the net book value of underlying net assets $ 0.7 $ 0.6  
Development, management and leasing fees recognized from unconsolidated affiliates 0.5 0.4 $ 1.4
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-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    
v3.19.3.a.u2
Investments In and Advances To Affiliates Consolidated Variable Interest Entity (Details)
$ in Thousands
3 Months Ended
Jun. 30, 2019
USD ($)
ft²
Dec. 31, 2019
USD ($)
ft²
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Consolidated Variable Interest Entity [Abstract]        
Rentable square feet of office property under development (in sq feet) | ft²   1,200,000    
Partner's interest in consolidated joint venture (in hundredths)   50.00%    
Assets and liabilities of consolidated variable interest entity [Abstract]        
Development in-process   $ 172,706 $ 165,537 $ 88,452
Accounts payable, accrued expenses and other liabilities   286,911 $ 218,922  
Consolidated Variable Interest Entity [Member]        
Consolidated Variable Interest Entity [Abstract]        
Rentable square feet of office property under development (in sq feet) | ft² 150,000      
Total anticipated development costs $ 71,300      
Contribution of cash to acquire interest in consolidated joint venture $ 20,000      
Contributions funded to acquire interest in consolidated joint venture   15,900    
Percentage of equity interest in consolidated affiliates 80.00%      
Partner's contribution of property to acquire interest in consolidated joint venture $ 5,000      
Partner's interest in consolidated joint venture (in hundredths) 20.00%      
Advance to consolidated affiliate $ 46,300      
Assets and liabilities of consolidated variable interest entity [Abstract]        
Development in-process   22,380    
Accounts payable, accrued expenses and other liabilities   $ 1,162    
London Interbank Offered Rate (LIBOR) [Member] | Consolidated Variable Interest Entity [Member]        
Consolidated Variable Interest Entity [Abstract]        
Interest rate basis LIBOR plus 250 basis points      
Interest rate, basis spread (in hundredths) 2.50%      
v3.19.3.a.u2
Intangible Assets and Below Market Lease Liabilities (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Intangible assets and below market lease liabilities, net [Abstract]      
Deferred leasing costs, gross $ 377,472 $ 344,548  
Deferred leasing costs, accumulated amortization (146,125) (149,275)  
Deferred leasing costs, net/Total scheduled future amortization of intangible assets 231,347 195,273  
Acquisition-related below market lease liabilities, gross 65,971 57,955  
Acquisition-related below market lease liabilities, accumulated amortization (34,014) (32,307)  
Acquisition-related below market lease liabilities, net 31,957 25,648  
Acquired intangible assets (amortized in rental and other revenue) 2,059    
Acquired intangible assets (amortized in depreciation and amortization) 35,637    
Assumed below market lease liabilities (amortized in rental and other revenue) (12,943)    
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 215,435    
Amortization of intangible assets and below market lease liabilities      
Amortization of intangible assets 37,386 36,486 $ 41,187
Lease Incentives [Member]      
Intangible assets and below market lease liabilities, net [Abstract]      
Deferred leasing costs, net/Total scheduled future amortization of intangible assets 9,915    
Amortization of intangible assets and below market lease liabilities      
Amortization of intangible assets 4,281 1,908 1,765
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 5,487    
Amortization of intangible assets and below market lease liabilities      
Amortization of intangible assets 1,290 1,677 2,921
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 510    
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 31,957    
Amortization of intangible assets and below market lease liabilities      
Amortization of acquisition-related below market lease liabilities $ (6,633) $ (6,085) $ (6,415)
v3.19.3.a.u2
Intangible Assets and Below Market Lease Liabilities - Scheduled Future Amortization (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Scheduled future amortization of intangible assets [Abstract]    
Deferred leasing costs, net/Total scheduled future amortization of intangible assets $ 231,347 $ 195,273
Scheduled future amortization of below market lease liabilites [Abstract]    
Total scheduled future amortization of below market lease liabilities (31,957) $ (25,648)
Deferred Leasing Costs and Acquisition-Related Intangible Assets [Member]    
Scheduled future amortization of intangible assets [Abstract]    
2020 38,376  
2021 33,581  
2022 29,200  
2023 25,683  
2024 22,631  
Thereafter 65,964  
Deferred leasing costs, net/Total scheduled future amortization of intangible assets $ 215,435  
Weighted average remaining amortization periods for intangible assets and liabilities [Abstract]    
Intangible assets, weighted average useful life (in years) 8 years 4 months 24 days  
Lease Incentives [Member]    
Scheduled future amortization of intangible assets [Abstract]    
2020 $ 1,599  
2021 1,353  
2022 1,119  
2023 1,040  
2024 890  
Thereafter 3,914  
Deferred leasing costs, net/Total scheduled future amortization of intangible assets $ 9,915  
Weighted average remaining amortization periods for intangible assets and liabilities [Abstract]    
Intangible assets, weighted average useful life (in years) 9 years 2 months 12 days  
Acquisition-Related Intangible Assets (in Rental and Other Revenue) [Member]    
Scheduled future amortization of intangible assets [Abstract]    
2020 $ 1,095  
2021 777  
2022 608  
2023 454  
2024 380  
Thereafter 2,173  
Deferred leasing costs, net/Total scheduled future amortization of intangible assets $ 5,487  
Weighted average remaining amortization periods for intangible assets and liabilities [Abstract]    
Intangible assets, weighted average useful life (in years) 9 years 4 months 24 days  
Acquired intangible assets, weighted average useful life (in years) 14 years 4 months 24 days  
Acquisition-Related Intangible Assets (Amortized in Depreciation and Amortization) [Member]    
Weighted average remaining amortization periods for intangible assets and liabilities [Abstract]    
Acquired intangible assets, weighted average useful life (in years) 14 years 8 months 12 days  
Acquisition-Related Intangible Assets (in Rental Property and Other Expenses) [Member]    
Scheduled future amortization of intangible assets [Abstract]    
2020 $ 510  
2021 0  
2022 0  
2023 0  
2024 0  
Thereafter 0  
Deferred leasing costs, net/Total scheduled future amortization of intangible assets $ 510  
Weighted average remaining amortization periods for intangible assets and liabilities [Abstract]    
Intangible assets, weighted average useful life (in years) 1 year  
Acquisition-Related Below Market Lease Liabilities [Member]    
Scheduled future amortization of below market lease liabilites [Abstract]    
2020 $ (5,933)  
2021 (5,033)  
2022 (3,985)  
2023 (3,607)  
2024 (2,939)  
Thereafter (10,460)  
Total scheduled future amortization of below market lease liabilities $ (31,957)  
Weighted average remaining amortization periods for intangible assets and liabilities [Abstract]    
Below market lease liabilities, weighted average useful life (in years) 8 years 9 months 18 days  
Assumed finite-lived below market lease liabilities, weighted average useful life (in years) 14 years 3 months 18 days  
v3.19.3.a.u2
Mortgages and Notes Payable (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
extension
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Jan. 24, 2020
USD ($)
Debt Instrument [Line Items]            
Mortgages and notes payable, net $ 2,543,710 $ 2,085,831        
Less-unamortized debt issuance costs (13,018) (9,164)        
Scheduled future principal payments [Abstract]            
2020 248          
2021 300,560          
2022 521,842          
2023 251,180          
2024 1,281          
Thereafter 1,481,617          
Less-unamortized debt issuance costs (13,018) (9,164)        
Mortgages and notes payable, net 2,543,710 2,085,831        
Gains/(losses) on debt extinguishment $ (640) 0 $ (26)      
Lender covenant compliance to accelerate outstanding borrowings 51.00%          
Cross-default minimum threshold $ 30,000          
Holders covenant compliance of bonds 25.00%          
Uncured covenant compliance default period 60 days          
Capitalized Interest [Abstract]            
Capitalized Interest $ 5,600 $ 6,700 $ 8,800      
4.0% Mortgage Loan Due 2029 [Member]            
Debt Instrument [Line Items]            
Current interest rate (in hundredths)     4.00%      
Scheduled future principal payments [Abstract]            
Principal amount of debt     $ 100,000      
Scheduled maturity date     May 01, 2029      
Debt issuance costs     $ 800      
3.875% (4.038% effective rate) Notes due 2027 [Member]            
Debt Instrument [Line Items]            
Current interest rate (in hundredths)     4.038%      
Scheduled future principal payments [Abstract]            
Principal amount of debt     $ 300,000      
Scheduled maturity date     Mar. 01, 2027      
Original issuance discount     $ 4,000      
Stated interest rate (in hundredths)     3.875%      
Debt issuance costs     $ 2,500      
4.125% (4.271% effective rate) Notes due 2028 [Member]            
Debt Instrument [Line Items]            
Current interest rate (in hundredths)   4.271%        
Scheduled future principal payments [Abstract]            
Principal amount of debt   $ 350,000        
Scheduled maturity date   Mar. 15, 2028        
Original issuance discount   $ 4,100        
Stated interest rate (in hundredths)   4.125%        
Debt issuance costs   $ 2,900        
4.20% (4.234% effective rate) Notes due 2029 [Member]            
Debt Instrument [Line Items]            
Current interest rate (in hundredths) 4.234%          
Scheduled future principal payments [Abstract]            
Principal amount of debt $ 350,000          
Scheduled maturity date Apr. 15, 2029          
Original issuance discount $ 1,000          
Stated interest rate (in hundredths) 4.20%          
Debt issuance costs $ 3,100          
3.050% (3.079% effective rate) Notes due 2030 [Member]            
Debt Instrument [Line Items]            
Current interest rate (in hundredths) 3.079%          
Scheduled future principal payments [Abstract]            
Principal amount of debt $ 400,000          
Scheduled maturity date Feb. 15, 2030          
Original issuance discount $ 1,000          
Stated interest rate (in hundredths) 3.05%          
Debt issuance costs $ 3,400          
Variable Rate Term Loan due 2020 [Member]            
Scheduled future principal payments [Abstract]            
Early repayment of debt 225,000   125,000      
Principal amount of debt       $ 350,000    
Scheduled maturity date       Jun. 01, 2020    
Interest rate, basis spread (in hundredths)       1.10%    
Debt issuance costs       $ 1,300    
Gains/(losses) on debt extinguishment (400)   (400)      
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]            
Early repayment of debt 100,000          
Principal amount of debt     200,000 $ 150,000    
Scheduled maturity date       Jan. 01, 2022    
Interest rate, basis spread (in hundredths)       1.10%    
Debt issuance costs     300      
Gains/(losses) on debt extinguishment (300)          
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      
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 (in hundredths)     1.10%      
Debt issuance costs     $ 1,100      
Gains/(losses) on debt extinguishment     (400)      
Revolving Credit Facility due 2022 [Member]            
Scheduled future principal payments [Abstract]            
Maximum borrowing capacity on revolving credit facility     $ 600,000 $ 475,000    
Maturity date on revolving credit facility     Jan. 01, 2022      
Additional borrowing capacity on revolving credit facility     $ 400,000      
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 221,000          
Outstanding letters of credit on revolving credit facility 100          
Unused borrowing capacity on revolving credit facility 378,900          
Interest rate, basis spread (in hundredths)     1.00%      
Debt issuance costs     $ 3,500      
Gains/(losses) on debt extinguishment     $ (100)      
Revolving Credit Facility due 2022 [Member] | London Interbank Offered Rate (LIBOR) [Member]            
Scheduled future principal payments [Abstract]            
Interest rate     LIBOR plus 100 basis points      
7.50% Notes due 2018 [Member]            
Debt Instrument [Line Items]            
Current interest rate (in hundredths)   7.50%        
Scheduled future principal payments [Abstract]            
Principal amount of debt   $ 200,000        
5.10%(4.22% effective rate) Mortgage Loan due 2017 [Member]            
Debt Instrument [Line Items]            
Current interest rate (in hundredths)     4.22%      
Scheduled future principal payments [Abstract]            
Early repayment of debt     $ 108,200      
Gains/(losses) on debt extinguishment     $ 400      
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 (in hundredths)     1.20%      
5.85% (5.88% effective rate) Notes due 2017 [Member]            
Debt Instrument [Line Items]            
Current interest rate (in hundredths)     5.85%      
Scheduled future principal payments [Abstract]            
Principal amount of debt     $ 379,700      
Variable Rate Term Loan (2) due 2019 [Member]            
Scheduled future principal payments [Abstract]            
Principal amount of debt         $ 225,000  
Term of debt instrument (in years)         7 years  
Scheduled maturity date         Jan. 01, 2019  
Interest rate, basis spread (in hundredths)         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  
6.11% (5.36% effective rate) Mortgage Loan due 2017 (Note A) [Member]            
Debt Instrument [Line Items]            
Current interest rate (in hundredths)         5.36%  
Scheduled future principal payments [Abstract]            
Early repayment of debt     18,000      
Principal amount of debt         $ 18,000  
Scheduled maturity date         Jul. 06, 2017  
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]            
Debt Instrument [Line Items]            
Current interest rate (in hundredths)         8.60%  
Scheduled future principal payments [Abstract]            
Early repayment of debt     500      
Principal amount of debt         $ 10,200  
Scheduled maturity date         Jul. 06, 2017  
Gains/(losses) on debt extinguishment     $ 400      
Secured indebtedness [Member]            
Debt Instrument [Line Items]            
Mortgages and notes payable, net 95,303 97,179        
Aggregate undepreciated book value of secured real estate assets 147,100          
Annual repayments through principal amortization 1,900          
Scheduled future principal payments [Abstract]            
Mortgages and notes payable, net 95,303 97,179        
Secured indebtedness [Member] | 4.0% Mortgage Loan Due 2029 [Member]            
Debt Instrument [Line Items]            
Mortgages and notes payable, net 95,303 97,179        
Scheduled future principal payments [Abstract]            
Mortgages and notes payable, net 95,303 97,179        
Unsecured indebtedness [Member]            
Debt Instrument [Line Items]            
Mortgages and notes payable, net 2,461,425 1,997,816        
Scheduled future principal payments [Abstract]            
Mortgages and notes payable, net 2,461,425 1,997,816        
Unsecured indebtedness [Member] | 3.20% (3.363% effective rate) Notes due 2021 [Member]            
Debt Instrument [Line Items]            
Mortgages and notes payable, net 299,369 298,936        
Unamortized discount 600 1,100        
Scheduled future principal payments [Abstract]            
Mortgages and notes payable, net 299,369 298,936        
Unsecured indebtedness [Member] | 3.625% (3.752% effective rate) Notes due 2023 [Member]            
Debt Instrument [Line Items]            
Mortgages and notes payable, net 249,201 248,938        
Unamortized discount 800 1,100        
Scheduled future principal payments [Abstract]            
Mortgages and notes payable, net 249,201 248,938        
Unsecured indebtedness [Member] | 3.875% (4.038% effective rate) Notes due 2027 [Member]            
Debt Instrument [Line Items]            
Mortgages and notes payable, net 297,134 296,734        
Unamortized discount 2,900 3,300        
Scheduled future principal payments [Abstract]            
Mortgages and notes payable, net 297,134 296,734        
Unsecured indebtedness [Member] | 4.125% (4.271% effective rate) Notes due 2028 [Member]            
Debt Instrument [Line Items]            
Mortgages and notes payable, net 346,621 346,208        
Unamortized discount 3,400 3,800        
Scheduled future principal payments [Abstract]            
Mortgages and notes payable, net 346,621 346,208        
Unsecured indebtedness [Member] | 4.20% (4.234% effective rate) Notes due 2029 [Member]            
Debt Instrument [Line Items]            
Mortgages and notes payable, net 349,091          
Unamortized discount 900          
Scheduled future principal payments [Abstract]            
Mortgages and notes payable, net 349,091          
Unsecured indebtedness [Member] | 3.050% (3.079% effective rate) Notes due 2030 [Member]            
Debt Instrument [Line Items]            
Mortgages and notes payable, net 399,009          
Unamortized discount 1,000          
Scheduled future principal payments [Abstract]            
Mortgages and notes payable, net 399,009          
Unsecured indebtedness [Member] | Variable Rate Term Loan due 2020 [Member]            
Debt Instrument [Line Items]            
Mortgages and notes payable, net 0 225,000        
Scheduled future principal payments [Abstract]            
Mortgages and notes payable, net 0 225,000        
Unsecured indebtedness [Member] | Variable Rate Term Loan due 2022 [Member]            
Debt Instrument [Line Items]            
Mortgages and notes payable, net $ 100,000 200,000        
Interest rate under derivative instruments (in hundredths) 2.79%          
Current interest rate (in hundredths) 2.81%          
Scheduled future principal payments [Abstract]            
Mortgages and notes payable, net $ 100,000 200,000        
Unsecured indebtedness [Member] | Variable Rate Term Loan (2) due 2022 [Member]            
Debt Instrument [Line Items]            
Mortgages and notes payable, net $ 200,000 200,000        
Current interest rate (in hundredths) 2.90%          
Scheduled future principal payments [Abstract]            
Mortgages and notes payable, net $ 200,000 200,000        
Unsecured indebtedness [Member] | Revolving Credit Facility due 2022 [Member]            
Debt Instrument [Line Items]            
Mortgages and notes payable, net $ 221,000 182,000        
Current interest rate (in hundredths) 2.73%          
Scheduled future principal payments [Abstract]            
Mortgages and notes payable, net $ 221,000 $ 182,000        
Subsequent Event [Member] | Revolving Credit Facility due 2022 [Member]            
Scheduled future principal payments [Abstract]            
Amount outstanding on revolving credit facility           $ 225,000
Outstanding letters of credit on revolving credit facility           100
Unused borrowing capacity on revolving credit facility           $ 374,900
v3.19.3.a.u2
Derivative Financial Instruments (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Sep. 30, 2019
Mar. 31, 2019
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Derivatives, Fair Value [Line Items]            
Gain on forward starting interest rate swaps     $ (9,134) $ 4,161 $ 1,732  
Expected decrease to interest expense     300      
Derivatives designated as cash flow hedges in prepaid expenses and other assets [Abstract]            
Interest rate swaps     0 1,146    
Derivatives designated as cash flow hedges in accounts payable, accrued expenses and other liabilities [Abstract]            
Interest rate swaps     154 3,581    
Amount of unrealized gains recognized in accumulated other comprehensive income/(loss) on derivatives (effective portion) [Abstract]            
Interest rate swaps     (9,134) 4,161 1,732  
Amount of (gains)/losses reclassified out of accumulated other comprehensive income/(loss) into contractual interest expense (effective portion) [Abstract]            
Interest rate swaps     (1,250) (2,086) 1,157  
3.050% (3.079% effective rate) Notes due 2030 [Member]            
Derivatives, Fair Value [Line Items]            
Principal amount of debt     $ 400,000      
Stated interest rate (in hundredths)     3.05%      
Scheduled maturity date     Feb. 15, 2030      
4.20% (4.234% effective rate) Notes due 2029 [Member]            
Derivatives, Fair Value [Line Items]            
Principal amount of debt     $ 350,000      
Stated interest rate (in hundredths)     4.20%      
Scheduled maturity date     Apr. 15, 2029      
4.125% (4.271% effective rate) Notes due 2028 [Member]            
Derivatives, Fair Value [Line Items]            
Principal amount of debt       $ 350,000    
Stated interest rate (in hundredths)       4.125%    
Scheduled maturity date       Mar. 15, 2028    
3.875% (4.038% effective rate) Notes due 2027 [Member]            
Derivatives, Fair Value [Line Items]            
Principal amount of debt         $ 300,000  
Stated interest rate (in hundredths)         3.875%  
Scheduled maturity date         Mar. 01, 2027  
Forward Starting Swaps [Member]            
Derivatives, Fair Value [Line Items]            
Amount of borrowings outstanding, subject to swaps     $ 150,000 $ 225,000 $ 150,000 $ 150,000
Underlying treasury rate term (in years)     10 years 10 years 10 years 10 years
Weighted average interest rate under derivative instruments (in hundredths)     1.87% 2.86% 2.44% 1.90%
Gain on forward starting interest rate swaps $ (6,600) $ (5,100)   $ 7,000 $ 7,300  
Gain on hedge ineffectiveness in interest expense       200    
Amount of unrealized gains recognized in accumulated other comprehensive income/(loss) on derivatives (effective portion) [Abstract]            
Interest rate swaps $ (6,600) $ (5,100)   $ 7,000 7,300  
Floating to Fixed Interest Rate Swaps (2017) [Member]            
Derivatives, Fair Value [Line Items]            
Amount of borrowings outstanding, subject to swaps         $ 50,000  
Underlying treasury rate term (in years)         1 month  
Weighted average interest rate under derivative instruments (in hundredths)         1.693%  
Floating to Fixed Interest Rate Swaps [Member]            
Derivatives, Fair Value [Line Items]            
Amount of borrowings outstanding, subject to swaps     $ 225,000      
Underlying treasury rate term (in years)     1 month      
Weighted average interest rate under derivative instruments (in hundredths)     1.678%      
v3.19.3.a.u2
Commitments and Contingencies (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Lease and Contractual Commitments [Abstract]      
Lease and contractual commitments $ 466,800    
Accrued amount of lease and contractual commitments 70,500    
Contingent Consideration [Abstract]      
Asset acquisition, contingent consideration liability 1,200 $ 0 $ 750
Asset Acquisition Contingent Consideration [Member]      
Contingent Consideration [Abstract]      
Asset acquisition, contingent consideration liability $ 5,300 $ 5,000  
v3.19.3.a.u2
Noncontrolling Interests (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
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       $ 105,960         $ 105,960    
Adjustment of noncontrolling interests in the Operating Partnership to fair value                 29,557 $ (33,427) $ (354)
Conversions of Common Units to Common Stock                 (663) (4,043) (511)
Net income attributable to noncontrolling interests in the Operating Partnership $ 1,577 $ 737 $ 1,044 193 $ 1,417 $ 902 $ 1,381 $ 888 3,551 4,588 5,059
Distributions to noncontrolling interests in the Operating Partnership                 (5,189) (5,167) (4,987)
Noncontrolling interests in the Operating Partnership, ending balance 133,216       105,960       133,216 105,960  
Net Income Available for Common Stockholders and Transfers From Noncontrolling Interests in the Operating Partnership                      
Net income available for common stockholders 59,852 $ 27,901 $ 39,422 7,255 53,048 $ 33,160 $ 50,686 32,449 134,430 169,343 182,873
Highwoods Properties, Inc. [Member]                      
Noncontrolling Interests in the Operating Partnership [Roll Forward]                      
Noncontrolling interests in the Operating Partnership, beginning balance       $ 105,960       $ 144,009 105,960 144,009  
Adjustment of noncontrolling interests in the Operating Partnership to fair value                 29,557 (33,427)  
Conversions of Common Units to Common Stock                 (663) (4,043)  
Net income attributable to noncontrolling interests in the Operating Partnership                 3,551 4,588  
Distributions to noncontrolling interests in the Operating Partnership                 (5,189) (5,167)  
Noncontrolling interests in the Operating Partnership, ending balance $ 133,216       $ 105,960       133,216 105,960 144,009
Net Income Available for Common Stockholders and Transfers From Noncontrolling Interests in the Operating Partnership                      
Net income available for common stockholders                 134,430 169,343 182,873
Increase in additional paid in capital from conversions of Common Units to Common Stock                 663 4,043 511
Change from net income available for common stockholders and transfers from noncontrolling interests                 $ 135,093 $ 173,386 $ 183,384
Variable Interest Entity, Primary Beneficiary [Member]                      
Noncontrolling Interests in Consolidated Affiliates                      
Consolidated joint venture, partner's interest (in hundredths) 20.00%               20.00%    
v3.19.3.a.u2
Disclosure About Fair Value of Financial Instruments - Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Assets:            
Mortgages and notes receivable, at fair value $ 1,501     $ 5,599    
Interest rate swaps (in prepaid expenses and other assets)       1,146    
Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets) 2,345     1,849    
Impaired real estate assets       10,252    
Total Assets 3,846     18,846    
Liabilities:            
Mortgages and notes payable, net, at fair value 2,615,776     2,056,248    
Interest rate swaps (in accounts payable, accrued expenses and other liabilities) 154     3,581    
Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities) 2,345     1,849 $ 2,388 $ 2,451
Total Liabilities 2,618,275     2,061,678    
Level 1 [Member]            
Assets:            
Mortgages and notes receivable, at fair value 0     0    
Interest rate swaps (in prepaid expenses and other assets)       0    
Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets) 2,345     1,849    
Impaired real estate assets       0    
Total Assets 2,345     1,849    
Liabilities:            
Mortgages and notes payable, net, at fair value 0     0    
Interest rate swaps (in accounts payable, accrued expenses and other liabilities) 0     0    
Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities) 2,345     1,849    
Total Liabilities 2,345     1,849    
Level 2 [Member]            
Assets:            
Mortgages and notes receivable, at fair value 1,501     5,599    
Interest rate swaps (in prepaid expenses and other assets)       1,146    
Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets) 0     0    
Impaired real estate assets       0    
Total Assets 1,501     6,745    
Liabilities:            
Mortgages and notes payable, net, at fair value 2,615,776     2,056,248    
Interest rate swaps (in accounts payable, accrued expenses and other liabilities) 154     3,581    
Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities) 0     0    
Total Liabilities 2,615,930     2,059,829    
Level 3 [Member]            
Assets:            
Mortgages and notes receivable, at fair value 0     0    
Interest rate swaps (in prepaid expenses and other assets)       0    
Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets) 0     0    
Impaired real estate assets   $ 7,600 $ 700 10,252    
Total Assets 0     10,252    
Liabilities:            
Mortgages and notes payable, net, at fair value 0     0    
Interest rate swaps (in accounts payable, accrued expenses and other liabilities) 0     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 133,216     105,960    
Highwoods Properties, Inc. [Member] | Level 1 [Member]            
Assets:            
Noncontrolling Interests in the Operating Partnership 133,216     105,960    
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    
v3.19.3.a.u2
Equity (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Class of Stock [Line Items]      
Number of trading days preceeding Redemption Notice Date (in days) 10 days    
Dividends, Common Stock [Abstract]      
Ordinary dividend $ 1.64 $ 1.48 $ 1.50
Capital gains 0.13 0.31 0.32
Return of capital 0.13 0.06 0
Total taxability of dividends per share $ 1.90 $ 1.85 1.82
Dividends, Preferred Stock [Abstract]      
Number of shares outstanding, Preferred Stock (in shares) 29,000 29,000  
Carrying value, Preferred Stock $ 28,859 $ 28,877  
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 dividend 79.90 71.22 71.00
Capital gains 6.35 15.03 15.25
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 96,200,000    
Dividends declared per share of Common Stock (in dollars per share) $ 1.90 1.85 1.76
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 Realty Limited Partnership [Member]      
Class of Stock [Line Items]      
Distributions declared per share of Common Unit (in dollars per share) $ 1.90 $ 1.85 1.76
Dividends, Preferred Stock [Abstract]      
Number of units outstanding, Preferred Units (in shares) 29,000 29,000  
Carrying value, Preferred units $ 28,859 $ 28,877  
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
v3.19.3.a.u2
Employee Benefit Plans (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Retirement Benefits [Abstract]      
Outstanding stock options and warrants 599,902 611,518  
Possible future share issuance authorized under equity incentive plans 2,016,659 2,188,696  
Total shares reserved for future issuance 2,616,561 2,800,214  
Possible future share issuance authorized under equity incentive plan restricted stock 400,000    
Stock-based compensation expense $ 7,180 $ 7,466 $ 6,692
Total unrecognized stock-based compensation costs $ 5,200    
Weighted average remaining term of vesting periods (in years) 2 years 1 month 6 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 $ 1,500 1,400 1,400
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 $ 2,345 1,849  
Non Qualified Deferred Compensation Obligation Fair Value Disclosure [Roll Forward]      
Beginning deferred compensation liability 1,849 2,388 2,451
Mark to market adjustment to deferred compensation (in general and administrative expenses) 496 (182) 492
Distributions from deferred compensation plans 0 (357) (555)
Ending deferred compensation liability $ 2,345 $ 1,849 $ 2,388
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 38,618 38,951 33,278
Discount percentage on newly issues shares 15.00%    
Discount on newly issued shares expensed as additional compensation $ 300 $ 300 $ 200
Minimum [Member]      
Retirement Benefits [Abstract]      
Officer cash bonus target 35.00%    
Officer cash bonus performance factor 0.00%    
Non officer management cash bonus target 6.00%    
Maximum [Member]      
Retirement Benefits [Abstract]      
Officer cash bonus target 135.00%    
Officer cash bonus performance factor 200.00%    
Non officer management cash bonus target 30.00%    
2016 Plan [Member]      
Restricted Stock Activity Rollforward [Abstract]      
Forfeited (in shares) (9,521)    
2015 Plan [Member]      
Restricted Stock Activity Rollforward [Abstract]      
Forfeited (in shares)   (13,707)  
2014 Plan [Member]      
Restricted Stock Activity Rollforward [Abstract]      
Awarded and issued (in shares)     34,669
Stock Options [Member]      
Retirement Benefits [Abstract]      
Grant date fair value of each stock option granted (in dollars per option)     $ 6.72
Assumptions Used in Determining Fair Values of Options/Restricted Stock Granted:      
Risk free interest rate     2.00%
Common stock dividend yield     3.40%
Expected volatility rate     19.50%
Average expected option life (in years)     5 years 9 months
Dividends paid for previous year     1 year
Stock Option Activity Rollforward [Abstract]      
Balance of options outstanding (in shares) 596,518 640,822 587,115
Options granted (in shares)     168,748
Options exercised (in shares) (9,026) (44,304) (115,041)
Options forfeited (in shares) (2,590)    
Balance of options outstanding (in shares) 584,902 596,518 640,822
Stock Option Activity, Weighted Average Exercise Price Rollforward [Abstract]      
Options outstanding, weighted average exercise price (in dollars per share) $ 45.67 $ 45.29 $ 42.26
Options granted, weighted average exercise price (in dollars per share)     52.49
Options exercised, weighted average exercise price (in dollars per share) 39.53 40.15 40.41
Options forfeited, weighted average exercise price (in dollars per share) 48.79    
Options outstanding, weighted average exercise price (in dollars per share) $ 45.75 $ 45.67 $ 45.29
Weighted average remaining life of outstanding options (in years) 5 years 9 months 18 days    
Options exercisable (in shares) 443,783    
Weighted average exercise price (in dollars per share) $ 44.78    
Weighted average remaining life (in years) 5 years 7 months 6 days    
Intrinsic value $ 2,100    
Amount of exercisable options with prices higher than the market price of Company Common Stock 84,374    
Cash received or receivable from options exercised $ 400 $ 1,900 $ 5,200
Total instrinsic value of options exercised 100 400 1,300
Total intrinsic value of options outstanding $ 2,400 $ 100 $ 3,900
2014 to 2017 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    
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    
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) 191,239 172,246 188,981
Awarded and issued (in shares) 103,590 94,984 61,404
Vested (in shares) (73,036) (73,307) (78,139)
Forfeited (in shares) (3,642) (2,684)  
Balance of restricted stock outstanding (in shares) 218,151 191,239 172,246
Restricted Stock Activity, Weighted Average Grant Date Fair Value Rollforward [Abstract]      
Restricted stock outstanding, weighted average grant date fair value (in dollars per share) $ 45.62 $ 46.46 $ 42.06
Awarded and issued, weighted average grant date fair value (in dollars per share) 45.98 43.01 52.49
Vested, weighted average grant date fair value (in dollars per share) 45.79 44.19 40.55
Forfeited, weighted average grant date fair value (in dollars per share) 46.07 45.89  
Restricted stock outstanding, weighted average grant date fair value (in dollars per share) 45.73 45.62 46.46
Grant date fair value of restricted stock (in dollars per share) $ 45.98 $ 43.01 $ 52.49
Fair value at grant date of restricted stock issued $ 4,800 $ 4,100 $ 3,200
Vesting date fair value of restricted stock $ 3,300 $ 3,200 $ 4,100
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 2.40% 2.30% 1.60%
Common stock dividend yield 4.40% 3.90% 3.50%
Expected volatility rate 27.30% 41.10% 42.80%
Dividends paid for previous year 1 year    
Restricted Stock Activity Rollforward [Abstract]      
Balance of restricted stock outstanding (in shares) 180,094 160,724 183,724
Awarded and issued (in shares) 87,344 77,456 84,013
Vested (in shares) (45,901) (41,160) (107,013)
Forfeited (in shares) (12,689) (16,926)  
Balance of restricted stock outstanding (in shares) 208,848 180,094 160,724
Restricted Stock Activity, Weighted Average Grant Date Fair Value Rollforward [Abstract]      
Restricted stock outstanding, weighted average grant date fair value (in dollars per share) $ 43.34 $ 44.72 $ 39.82
Awarded and issued, weighted average grant date fair value (in dollars per share) 39.42 40.81 44.76
Vested, weighted average grant date fair value (in dollars per share) 43.68 45.61 37.88
Forfeited, weighted average grant date fair value (in dollars per share) 43.58 45.24  
Restricted stock outstanding, weighted average grant date fair value (in dollars per share) $ 42.22 43.34 44.72
Company total return, total return-based restricted stock 100.00%    
Vesting percentage, total return-based restricted stock 75.00%    
Grant date fair value of restricted stock (in dollars per share) $ 39.42 $ 40.81 $ 44.76
Fair value at grant date of restricted stock issued $ 3,400 $ 3,200 $ 2,400
Vesting date fair value of restricted stock $ 2,100 $ 1,800 $ 5,600
Period preceding date of grant 3 months    
Total Return-Based Restricted Stock [Member] | Minimum [Member]      
Restricted Stock Activity, Weighted Average Grant Date Fair Value Rollforward [Abstract]      
Percentage of return-based restricted stock issued to officers that will vest 0.00%    
Total Return-Based Restricted Stock [Member] | Maximum [Member]      
Restricted Stock Activity, Weighted Average Grant Date Fair Value Rollforward [Abstract]      
Percentage of return-based restricted stock issued to officers that will vest 150.00%    
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) $ 39.42 $ 40.81 $ 49.59
Grant date fair value of restricted stock (in dollars per share) $ 39.42 $ 40.81 $ 49.59
v3.19.3.a.u2
Accumulated Other Comprehensive Income/(Loss) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Accumulated Other Comprehensive Income/(Loss) Calculation [Roll Forward]    
Beginning balance $ 9,913  
Ending balance (471) $ 9,913
Cash Flow Hedges [Member]    
Accumulated Other Comprehensive Income/(Loss) Calculation [Roll Forward]    
Beginning balance 9,913 7,838
Unrealized gains on cash flow hedges (9,134) 4,161
Amortization reclassified out of accumulated other comprehensive income/(loss) $ (1,250) (2,086)
Ending balance   $ 9,913
v3.19.3.a.u2
Real Estate and Other Assets Held For Sale (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Assets, held for sale [Abstract]    
Land $ 4,815 $ 0
Building and tenant improvements 29,581 0
Less accumulated depreciation (16,775) 0
Net real estate assets 17,621 0
Accrued straight-line rents receivable, net 2,073 0
Deferred leasing costs, net 1,096 0
Real estate and other assets, net, held for sale $ 20,790 $ 0
v3.19.3.a.u2
Earnings Per Share and Per Unit (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Earnings per Common Share/Unit - basic: [Abstract]                      
Net income $ 62,346 $ 29,557 $ 41,394 $ 8,386 $ 55,377 $ 35,009 $ 52,998 $ 34,246 $ 141,683 $ 177,630 $ 191,663
Net (income) attributable to noncontrolling interests in the Operating Partnership                 (3,551) (4,588) (5,059)
Net (income) attributable to noncontrolling interests in consolidated affiliates (295) (297) (306) (316) (289) (324) (308) (286) (1,214) (1,207) (1,239)
Dividends on Preferred Stock (622) (622) (622) (622) (623) (623) (623) (623) (2,488) (2,492) (2,492)
Net income available for common stockholders $ 59,852 $ 27,901 $ 39,422 $ 7,255 $ 53,048 $ 33,160 $ 50,686 $ 32,449 $ 134,430 $ 169,343 $ 182,873
Denominator:                      
Denominator for basic earnings per Common Share - weighted average shares (in shares)                 103,692 103,439 102,682
Earnings per Common Share - basic:                      
Net income available for common stockholders (in dollars per share) $ 0.58 $ 0.27 $ 0.38 $ 0.07 $ 0.51 $ 0.32 $ 0.49 $ 0.31 $ 1.30 $ 1.64 $ 1.78
Earnings per Common Share/Unit - diluted: [Abstract]                      
Net (income) attributable to noncontrolling interests in consolidated affiliates $ (295) $ (297) $ (306) $ (316) $ (289) $ (324) $ (308) $ (286) $ (1,214) $ (1,207) $ (1,239)
Dividends on Preferred Stock $ (622) $ (622) $ (622) $ (622) $ (623) $ (623) $ (623) $ (623) (2,488) (2,492) (2,492)
Net income available for common stockholders before net (income) attributable to noncontrolling interests in the Operating Partnership                 $ 137,981 $ 173,931 $ 187,932
Denominator:                      
Denominator for basic earnings per Common Share - weighted average shares (in shares)                 103,692 103,439 102,682
Stock options using the treasury method                 22 33 79
Noncontrolling interests Common Units                 2,731 2,796 2,833
Denominator for diluted earnings per Common Share - adjusted weighted average shares and assumed conversions (in shares)                 106,445 106,268 105,594
Earnings per Common Share - diluted:                      
Net income available for common stockholders (in dollars per share) $ 0.58 $ 0.27 $ 0.38 $ 0.07 $ 0.51 $ 0.32 $ 0.49 $ 0.31 $ 1.30 $ 1.64 $ 1.78
Highwoods Realty Limited Partnership [Member]                      
Earnings per Common Share/Unit - basic: [Abstract]                      
Net income $ 62,346 $ 29,557 $ 41,394 $ 8,386 $ 55,377 $ 35,009 $ 52,998 $ 34,246 $ 141,683 $ 177,630 $ 191,663
Net (income) attributable to noncontrolling interests in consolidated affiliates (295) (297) (306) (316) (289) (324) (308) (286) (1,214) (1,207) (1,239)
Distributions on Preferred Units (622) (622) (622) (622) (623) (623) (623) (623) (2,488) (2,492) (2,492)
Net income available for common unitholders $ 61,429 $ 28,638 $ 40,466 $ 7,448 $ 54,465 $ 34,062 $ 52,067 $ 33,337 $ 137,981 $ 173,931 $ 187,932
Denominator:                      
Denominator for basic earnings per Common Unit - weighted average units (in shares)                 106,014 105,826 105,106
Earnings per Common Unit - basic:                      
Net income available for common unitholders (in dollars per share) $ 0.58 $ 0.27 $ 0.38 $ 0.07 $ 0.51 $ 0.32 $ 0.49 $ 0.32 $ 1.30 $ 1.64 $ 1.79
Earnings per Common Share/Unit - diluted: [Abstract]                      
Net (income) attributable to noncontrolling interests in consolidated affiliates $ (295) $ (297) $ (306) $ (316) $ (289) $ (324) $ (308) $ (286) $ (1,214) $ (1,207) $ (1,239)
Distributions on Preferred Units (622) (622) (622) (622) (623) (623) (623) (623) (2,488) (2,492) (2,492)
Net income available for common unitholders $ 61,429 $ 28,638 $ 40,466 $ 7,448 $ 54,465 $ 34,062 $ 52,067 $ 33,337 $ 137,981 $ 173,931 $ 187,932
Denominator:                      
Denominator for basic earnings per Common Unit - weighted average units (in shares)                 106,014 105,826 105,106
Stock options using the treasury method                 22 33 79
Denominator for diluted earnings per Common Unit - adjusted weighted average units and assumed conversions (in shares)                 106,036 105,859 105,185
Earnings per Common Unit - diluted:                      
Net income available for common unitholders (in dollars per share) $ 0.58 $ 0.27 $ 0.38 $ 0.07 $ 0.51 $ 0.32 $ 0.49 $ 0.32 $ 1.30 $ 1.64 $ 1.79
v3.19.3.a.u2
Income Taxes (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Highwoods Properties, Inc. [Member]      
Income Tax Disclosure [Line Items]      
Minimum dividend required to maintain REIT status (in dollars per share) $ 1.44 $ 1.26 $ 1.37
Tax basis of assets $ 4,700,000 $ 4,300,000  
Tax basis of liabilities 2,900,000 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) 202 133 (177)
Current state tax expense 148 112 105
Current tax expense/(benefit) 350 245 (72)
Deferred federal tax expense/(benefit) 14 (95) 223
Deferred state tax benefit (120) (68) (9)
Deferred tax expense/(benefit) (106) (163) 214
Total income tax expense 244 82 $ 142
Net deferred tax liabilities 100 200  
Highwoods Realty Limited Partnership [Member]      
Income Tax Disclosure [Line Items]      
Tax basis of assets 4,700,000 4,200,000  
Tax basis of liabilities $ 2,900,000 $ 2,300,000  
v3.19.3.a.u2
Segment Information (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Segment Reporting Information [Line Items]                      
Rental and other revenues $ 192,071 $ 187,475 $ 184,070 $ 172,363 $ 181,388 $ 179,417 $ 178,792 $ 180,438 $ 735,979 $ 720,035 $ 702,737
Total net operating income                 487,468 477,620 465,849
Reconciliation to net income:                      
Depreciation and amortization                 (254,504) (229,955) (227,832)
Impairments of real estate assets                 (5,849) (423) (1,445)
General and administrative expenses                 (44,067) (40,006) (39,648)
Interest expense                 (81,648) (71,422) (69,105)
Other income/(loss)                 (2,510) 1,940 2,283
Gains on disposition of property                 39,517 37,638 54,157
Equity in earnings of unconsolidated affiliates                 3,276 2,238 7,404
Net income 62,346 $ 29,557 $ 41,394 $ 8,386 55,377 $ 35,009 $ 52,998 $ 34,246 141,683 177,630 191,663
Total Assets 5,138,244       4,675,009       5,138,244 4,675,009  
Office Atlanta, GA [Member]                      
Segment Reporting Information [Line Items]                      
Rental and other revenues                 151,279 141,337 140,323
Total net operating income                 97,019 87,503 89,575
Reconciliation to net income:                      
Total Assets 1,040,869       1,047,850       1,040,869 1,047,850  
Office Charlotte, NC [Member]                      
Segment Reporting Information [Line Items]                      
Rental and other revenues                 4,650 0 0
Total net operating income                 3,791 0 0
Reconciliation to net income:                      
Total Assets 425,045       0       425,045 0  
Office Greensboro, NC [Member]                      
Segment Reporting Information [Line Items]                      
Rental and other revenues                 22,154 22,322 21,453
Total net operating income                 14,183 14,275 13,612
Reconciliation to net income:                      
Total Assets 114,030       118,611       114,030 118,611  
Office Memphis, TN [Member]                      
Segment Reporting Information [Line Items]                      
Rental and other revenues                 39,494 40,230 45,430
Total net operating income                 24,790 25,659 28,128
Reconciliation to net income:                      
Total Assets 148,832       213,276       148,832 213,276  
Office Nashville, TN [Member]                      
Segment Reporting Information [Line Items]                      
Rental and other revenues                 133,867 121,836 111,506
Total net operating income                 97,386 88,554 81,204
Reconciliation to net income:                      
Total Assets 1,045,125       937,732       1,045,125 937,732  
Office Orlando, FL [Member]                      
Segment Reporting Information [Line Items]                      
Rental and other revenues                 52,679 53,771 51,236
Total net operating income                 32,062 32,841 30,526
Reconciliation to net income:                      
Total Assets 289,743       306,370       289,743 306,370  
Office Pittsburgh, PA [Member]                      
Segment Reporting Information [Line Items]                      
Rental and other revenues                 60,755 61,177 59,103
Total net operating income                 36,249 36,233 34,784
Reconciliation to net income:                      
Total Assets 323,792       329,918       323,792 329,918  
Office Raleigh, NC [Member]                      
Segment Reporting Information [Line Items]                      
Rental and other revenues                 122,173 118,352 119,254
Total net operating income                 88,402 86,053 86,475
Reconciliation to net income:                      
Total Assets 830,128       792,464       830,128 792,464  
Office Richmond, VA [Member]                      
Segment Reporting Information [Line Items]                      
Rental and other revenues                 49,428 45,729 43,959
Total net operating income                 33,756 31,276 29,946
Reconciliation to net income:                      
Total Assets 246,546       248,669       246,546 248,669  
Office Tampa, FL [Member]                      
Segment Reporting Information [Line Items]                      
Rental and other revenues                 86,431 102,404 97,524
Total net operating income                 50,339 65,819 62,378
Reconciliation to net income:                      
Total Assets 521,620       522,263       521,620 522,263  
Other Segment [Member]                      
Segment Reporting Information [Line Items]                      
Rental and other revenues                 13,069 12,877 12,949
Total net operating income                 9,491 9,407 9,221
Reconciliation to net income:                      
Total Assets 152,514       157,856       152,514 157,856  
Office Total Segment [Member]                      
Segment Reporting Information [Line Items]                      
Rental and other revenues                 722,910 707,158 689,788
Total net operating income                 477,977 468,213 $ 456,628
Reconciliation to net income:                      
Total Assets $ 4,985,730       $ 4,517,153       $ 4,985,730 $ 4,517,153  
v3.19.3.a.u2
Quarterly Financial Data (Unaudited) (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Quarterly Financial Data [Line Items]                      
Rental and other revenues $ 192,071 $ 187,475 $ 184,070 $ 172,363 $ 181,388 $ 179,417 $ 178,792 $ 180,438 $ 735,979 $ 720,035 $ 702,737
Net income 62,346 29,557 41,394 8,386 55,377 35,009 52,998 34,246 141,683 177,630 191,663
Net (income) attributable to noncontrolling interests in the Operating Partnership (1,577) (737) (1,044) (193) (1,417) (902) (1,381) (888) (3,551) (4,588) (5,059)
Net (income) attributable to noncontrolling interests in consolidated affiliates (295) (297) (306) (316) (289) (324) (308) (286) (1,214) (1,207) (1,239)
Dividends on Preferred Stock (622) (622) (622) (622) (623) (623) (623) (623) (2,488) (2,492) (2,492)
Net income available for common stockholders $ 59,852 $ 27,901 $ 39,422 $ 7,255 $ 53,048 $ 33,160 $ 50,686 $ 32,449 $ 134,430 $ 169,343 $ 182,873
Earnings per Common Share - basic:                      
Net income available for common stockholders (in dollars per share) $ 0.58 $ 0.27 $ 0.38 $ 0.07 $ 0.51 $ 0.32 $ 0.49 $ 0.31 $ 1.30 $ 1.64 $ 1.78
Earnings per Common Share - diluted:                      
Net income available for common stockholders (in dollars per share) $ 0.58 $ 0.27 $ 0.38 $ 0.07 $ 0.51 $ 0.32 $ 0.49 $ 0.31 $ 1.30 $ 1.64 $ 1.78
Highwoods Properties, Inc. [Member]                      
Quarterly Financial Data [Line Items]                      
Net (income) attributable to noncontrolling interests in the Operating Partnership                 $ (3,551) $ (4,588)  
Net income available for common stockholders                 134,430 169,343 $ 182,873
Highwoods Realty Limited Partnership [Member]                      
Quarterly Financial Data [Line Items]                      
Rental and other revenues $ 192,071 $ 187,475 $ 184,070 $ 172,363 $ 181,388 $ 179,417 $ 178,792 $ 180,438 735,979 720,035 702,737
Net income 62,346 29,557 41,394 8,386 55,377 35,009 52,998 34,246 141,683 177,630 191,663
Net (income) attributable to noncontrolling interests in consolidated affiliates (295) (297) (306) (316) (289) (324) (308) (286) (1,214) (1,207) (1,239)
Distributions on Preferred Units (622) (622) (622) (622) (623) (623) (623) (623) (2,488) (2,492) (2,492)
Net income available for common unitholders $ 61,429 $ 28,638 $ 40,466 $ 7,448 $ 54,465 $ 34,062 $ 52,067 $ 33,337 $ 137,981 $ 173,931 $ 187,932
Earnings per Common Unit - basic:                      
Net income available for common unitholders (in dollars per share) $ 0.58 $ 0.27 $ 0.38 $ 0.07 $ 0.51 $ 0.32 $ 0.49 $ 0.32 $ 1.30 $ 1.64 $ 1.79
Earnings per Common Unit - diluted:                      
Net income available for common unitholders (in dollars per share) $ 0.58 $ 0.27 $ 0.38 $ 0.07 $ 0.51 $ 0.32 $ 0.49 $ 0.32 $ 1.30 $ 1.64 $ 1.79
v3.19.3.a.u2
Subsequent Events (Details)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 12 Months Ended
Feb. 04, 2020
$ / shares
Jan. 30, 2020
USD ($)
propertyUnit
Sep. 30, 2019
USD ($)
Dec. 31, 2019
USD ($)
$ / shares
Dec. 31, 2018
USD ($)
$ / shares
Dec. 31, 2017
USD ($)
$ / shares
Subsequent Event [Line Items]            
Gains on disposition of property       $ 39,517 $ 37,638 $ 54,157
Highwoods Properties, Inc. [Member]            
Subsequent Event [Line Items]            
Dividends declared per share of Common Stock (in dollars per share) | $ / shares       $ 1.90 $ 1.85 $ 1.76
Highwoods Properties, Inc. [Member] | Subsequent Event [Member]            
Subsequent Event [Line Items]            
Dividends declared per share of Common Stock (in dollars per share) | $ / shares $ 0.48          
Division Exit [Member]            
Subsequent Event [Line Items]            
Purchase price of real estate     $ 436,000      
Division Exit [Member] | Subsequent Event [Member]            
Subsequent Event [Line Items]            
Number of buildings sold | propertyUnit   35        
Purchase price of real estate   $ 193,400        
Gains on disposition of property   $ 105,000        
v3.19.3.a.u2
Schedule III (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
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 $ 5,296,551 $ 5,296,551 $ 4,865,103 $ 5,776,804 $ 5,296,551 $ 5,173,754
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,296,562 1,211,728 1,211,728 1,405,341 1,296,562 1,211,728
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Federal Income Tax Basis       5,500,000    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 5,296,551 5,296,551 4,865,103 5,776,804 5,296,551 5,173,754
Development in process exclusive of land included in Schedule III       172,706 165,537 88,452
Real estate assets, net, held for sale       (34,396) 0 (22,543)
Total real estate assets       5,915,114 5,462,088 5,239,663
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 1,211,728 1,211,728 1,405,341 1,296,562 1,211,728
Real estate assets, net, held for sale       (16,775) 0 (9,304)
Total accumulated depreciation       1,388,566 $ 1,296,562 $ 1,202,424
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, beginning balance 5,296,551 5,173,754 4,865,103      
Acquisitions, development and improvements 677,842 274,863 486,755      
Cost of real estate sold and retired (197,589) (152,066) (178,104)      
Real estate assets, ending balance 5,776,804 5,296,551 5,173,754      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, beginning balance 1,296,562 1,211,728 1,134,103      
Depreciation expense 214,700 191,000 184,400      
Real estate sold and retired (105,903) (106,201) (106,760)      
Accumulated depreciation, ending balance 1,405,341 $ 1,296,562 $ 1,211,728      
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       1,452    
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       3,934    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 3,936     3,936    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,727     1,727    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 3,936     3,936    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,727     1,727    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 3,936          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 1,727          
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       10,645    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,444    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       39,726    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 41,170     41,170    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 22,558     22,558    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 41,170     41,170    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 22,558     22,558    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 41,170          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 22,558          
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       15,089    
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       15,089    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 16,256     16,256    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,255     6,255    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 16,256     16,256    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,255     6,255    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 16,256          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 6,255          
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       8,281    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       17,205    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 17,205     17,205    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,779     7,779    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 17,205     17,205    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,779     7,779    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 17,205          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 7,779          
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 5,111     5,111    
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 5,111     5,111    
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 5,111          
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       9,043    
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       23,475    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 23,475     23,475    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 11,282     11,282    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 23,475     23,475    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 11,282     11,282    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 23,475          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 11,282          
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       14,779    
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       14,779    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 15,185     15,185    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,111     7,111    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 15,185     15,185    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,111     7,111    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 15,185          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 7,111          
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       12,629    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       328    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       12,629    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 12,957     12,957    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,149     4,149    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 12,957     12,957    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,149     4,149    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 12,957          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 4,149          
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 2,254     2,254    
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 2,254     2,254    
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 2,254          
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       4,603    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       15,282    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 15,282     15,282    
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 15,282     15,282    
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 15,282          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 7,823          
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       19,336    
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       40,979    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 40,979     40,979    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 15,880     15,880    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 40,979     40,979    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 15,880     15,880    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 40,979          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 15,880          
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       10,417    
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       30,866    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 30,866     30,866    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 16,569     16,569    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 30,866     30,866    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 16,569     16,569    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 30,866          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 16,569          
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       4,150    
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       24,156    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 26,656     26,656    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,784     12,784    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 26,656     26,656    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,784     12,784    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 26,656          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 12,784          
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       4,695    
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       13,262    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 14,552     14,552    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,329     6,329    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 14,552     14,552    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,329     6,329    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 14,552          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 6,329          
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       3,118    
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       10,851    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 12,231     12,231    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,249     5,249    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 12,231     12,231    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,249     5,249    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 12,231          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 5,249          
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       12,160    
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       12,160    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 14,772     14,772    
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 14,772     14,772    
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 14,772          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 3,269          
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       19,671    
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       51,782    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 55,124     55,124    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 24,343     24,343    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 55,124     55,124    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 24,343     24,343    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 55,124          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 24,343          
Atlanta, GA - Riverpoint - 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       (4,439)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       718    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,811    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       718    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 3,529     3,529    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 167     167    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 3,529     3,529    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 167     167    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 3,529          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 167          
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       23,760    
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       88,673    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 94,429     94,429    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 20,255     20,255    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 94,429     94,429    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 20,255     20,255    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 94,429          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 20,255          
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       2,029    
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       127,578    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 137,157     137,157    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 32,833     32,833    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 137,157     137,157    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 32,833     32,833    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 137,157          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 32,833          
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       17,076    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       14,775    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       140,147    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 154,922     154,922    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 27,985     27,985    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 154,922     154,922    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 27,985     27,985    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 154,922          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 27,985          
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       11,692    
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       38,026    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 43,375     43,375    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,963     8,963    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 43,375     43,375    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,963     8,963    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 43,375          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 8,963          
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       2,883    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       5,103    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       25,694    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 30,797     30,797    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,361     6,361    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 30,797     30,797    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,361     6,361    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 30,797          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 6,361          
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       450    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       2,772    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       5,227    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       92,480    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 97,707     97,707    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,007     8,007    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 97,707     97,707    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,007     8,007    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 97,707          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 8,007          
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 52     52    
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 52     52    
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 52          
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       14,742    
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       157,810    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 180,527     180,527    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 20,029     20,029    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 180,527     180,527    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 20,029     20,029    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 180,527          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 20,029          
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       8,945    
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       97,907    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 125,585     125,585    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,760     12,760    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 125,585     125,585    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,760     12,760    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 125,585          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 12,760          
Charlotte, NC - Bank of America 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       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       29,273    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       354,749    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       29,273    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       354,749    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 384,022     384,022    
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 384,022     384,022    
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 384,022          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 1,224          
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       4,713    
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       16,098    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 17,589     17,589    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,925     7,925    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 17,589     17,589    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,925     7,925    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 17,589          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 7,925          
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       5,609    
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       14,286    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 15,862     15,862    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,925     6,925    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 15,862     15,862    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,925     6,925    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 15,862          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 6,925          
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       3,261    
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       8,841    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 9,854     9,854    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,835     4,835    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 9,854     9,854    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,835     4,835    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 9,854          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 4,835          
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       (252)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       4,907    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       694    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       4,907    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 5,601     5,601    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,719     1,719    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 5,601     5,601    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,719     1,719    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 5,601          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 1,719          
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       7,210    
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       34,992    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 39,876     39,876    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 19,039     19,039    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 39,876     39,876    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 19,039     19,039    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 39,876          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 19,039          
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       4,663    
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       14,903    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 18,510     18,510    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,632     5,632    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 18,510     18,510    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,632     5,632    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 18,510          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 5,632          
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       2,501    
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       8,982    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 10,549     10,549    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,546     4,546    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 10,549     10,549    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,546     4,546    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 10,549          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 4,546          
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       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       7,328    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       46,281    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 53,609     53,609    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 13,266     13,266    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 53,609     53,609    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 13,266     13,266    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 53,609          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 13,266          
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       36,651    
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       36,651    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 37,904     37,904    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,244     10,244    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 37,904     37,904    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,244     10,244    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 37,904          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 10,244          
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 1,553     1,553    
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 1,553     1,553    
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 1,553          
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 1,703     1,703    
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 1,703     1,703    
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 1,703          
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       11,107    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       3,025    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       38,597    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 41,622     41,622    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 17,278     17,278    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 41,622     41,622    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 17,278     17,278    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 41,622          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 17,278          
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       6,680    
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       29,597    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 35,459     35,459    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 15,313     15,313    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 35,459     35,459    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 15,313     15,313    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 35,459          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 15,313          
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       3,648    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,863    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       10,849    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 12,712     12,712    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,060     6,060    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 12,712     12,712    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,060     6,060    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 12,712          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 6,060          
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 1,213     1,213    
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 1,213     1,213    
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 1,213          
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 1,422     1,422    
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 1,422     1,422    
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 1,422          
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       13,341    
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       13,341    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 14,939     14,939    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,710     6,710    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 14,939     14,939    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,710     6,710    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 14,939          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 6,710          
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       19,860    
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       19,860    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 22,030     22,030    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,088     9,088    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 22,030     22,030    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,088     9,088    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 22,030          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 9,088          
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       15,746    
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       15,746    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 18,181     18,181    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,194     5,194    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 18,181     18,181    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,194     5,194    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 18,181          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 5,194          
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       19,331    
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       19,331    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 21,046     21,046    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,562     5,562    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 21,046     21,046    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,562     5,562    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 21,046          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 5,562          
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 21,228     21,228    
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 21,228     21,228    
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 21,228          
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       2,421    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,419    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       8,098    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 9,517     9,517    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,237     4,237    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 9,517     9,517    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,237     4,237    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 9,517          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 4,237          
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       2,550    
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       9,199    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 10,859     10,859    
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 10,859     10,859    
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 10,859          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 5,183          
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       2,910    
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       9,752    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 11,465     11,465    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,146     5,146    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 11,465     11,465    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,146     5,146    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 11,465          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 5,146          
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       4,590    
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       4,590    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 5,449     5,449    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,354     2,354    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 5,449     5,449    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,354     2,354    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 5,449          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 2,354          
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       5,445    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,328    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       5,445    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 6,773     6,773    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,214     2,214    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 6,773     6,773    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,214     2,214    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 6,773          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 2,214          
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       9,776    
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       9,776    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 11,635     11,635    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,535     4,535    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 11,635     11,635    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,535     4,535    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 11,635          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 4,535          
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       9,043    
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       9,043    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 10,798     10,798    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,582     4,582    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 10,798     10,798    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,582     4,582    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 10,798          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 4,582          
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       12,856    
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       12,856    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 15,524     15,524    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,442     5,442    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 15,524     15,524    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,442     5,442    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 15,524          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 5,442          
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       8,642    
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       8,642    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 10,607     10,607    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,717     3,717    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 10,607     10,607    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,717     3,717    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 10,607          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 3,717          
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       9,113    
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       21,919    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 24,313     24,313    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,012     8,012    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 24,313     24,313    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,012     8,012    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 24,313          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 8,012          
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       11,887    
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       11,887    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 14,375     14,375    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,498     5,498    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 14,375     14,375    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,498     5,498    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 14,375          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 5,498          
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       2,128    
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       9,386    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 10,883     10,883    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,929     4,929    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 10,883     10,883    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,929     4,929    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 10,883          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 4,929          
Nashville, TN - The Pinnacle at Symphony Place [Member]            
Real Estate and Accumulated Depreciation [Line Items]            
Real Estate and Accumulated Depreciation, Encumbrances       95,303    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate 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       5,613    
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       147,082    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 147,082     147,082    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 31,696     31,696    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 147,082     147,082    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 31,696     31,696    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 147,082          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 31,696          
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       180    
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       37,767    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 40,292     40,292    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,311     7,311    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 40,292     40,292    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,311     7,311    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 40,292          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 7,311          
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       428    
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       8,651    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 9,454     9,454    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,195     2,195    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 9,454     9,454    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,195     2,195    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 9,454          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 2,195          
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       2,015    
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       53,321    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 55,760     55,760    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,123     6,123    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 55,760     55,760    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,123     6,123    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 55,760          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 6,123          
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       1,621    
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       31,669    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 34,025     34,025    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,853     2,853    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 34,025     34,025    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,853     2,853    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 34,025          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 2,853          
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       1,200    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       190    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       16,839    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       169,582    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 186,421     186,421    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 11,517     11,517    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 186,421     186,421    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 11,517     11,517    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 186,421          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 11,517          
Nashville, TN - MARS 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       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       7,010    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       87,474    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       7,010    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       87,474    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 94,484     94,484    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,225     2,225    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 94,484     94,484    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,225     2,225    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 94,484          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 2,225          
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       4,534    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       25,632    
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       4,534    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       25,632    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 30,166     30,166    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 794     794    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 30,166     30,166    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 794     794    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 30,166          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 794          
Nashville, TN - Ovation - 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       31,063    
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       31,063    
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 31,063     31,063    
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 31,063     31,063    
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 31,063          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 0          
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          
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       3,663    
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       13,514    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 13,514     13,514    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,883     8,883    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 13,514     13,514    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,883     8,883    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 13,514          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 8,883          
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       8,753    
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       38,294    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 42,187     42,187    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,498     7,498    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 42,187     42,187    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,498     7,498    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 42,187          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 7,498          
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       6,788    
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       50,182    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 54,528     54,528    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,775     10,775    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 54,528     54,528    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,775     10,775    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 54,528          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 10,775          
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       6,360    
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       33,681    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 37,163     37,163    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,051     6,051    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 37,163     37,163    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,051     6,051    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 37,163          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 6,051          
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       8,840    
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       30,871    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 35,614     35,614    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,465     6,465    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 35,614     35,614    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,465     6,465    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 35,614          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 6,465          
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       10,389    
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       33,044    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 39,251     39,251    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,691     6,691    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 39,251     39,251    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,691     6,691    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 39,251          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 6,691          
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       9,333    
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       65,412    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 68,902     68,902    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,721     10,721    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 68,902     68,902    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,721     10,721    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 68,902          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 10,721          
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       7,654    
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       18,814    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 22,572     22,572    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,881     2,881    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 22,572     22,572    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,881     2,881    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 22,572          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 2,881          
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 1,982     1,982    
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 1,982     1,982    
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 1,982          
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       726    
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       2,100    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 2,441     2,441    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,075     1,075    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 2,441     2,441    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,075     1,075    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 2,441          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 1,075          
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       1,136    
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       2,652    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 3,031     3,031    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,445     1,445    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 3,031     3,031    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,445     1,445    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 3,031          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 1,445          
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       1,065    
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       2,914    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 3,376     3,376    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,426     1,426    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 3,376     3,376    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,426     1,426    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 3,376          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 1,426          
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       647    
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       1,940    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 2,262     2,262    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,002     1,002    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 2,262     2,262    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,002     1,002    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 2,262          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 1,002          
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       2,707    
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       5,628    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 6,138     6,138    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,932     2,932    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 6,138     6,138    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,932     2,932    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 6,138          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 2,932          
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       1,603    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       739    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       4,840    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 5,579     5,579    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,771     2,771    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 5,579     5,579    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,771     2,771    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 5,579          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 2,771          
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       5,904    
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       15,480    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 17,873     17,873    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,818     8,818    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 17,873     17,873    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,818     8,818    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 17,873          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 8,818          
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       5,375    
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       5,375    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 6,924     6,924    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,630     2,630    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 6,924     6,924    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,630     2,630    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 6,924          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 2,630          
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       219    
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       1,287    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 1,511     1,511    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 751     751    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 1,511     1,511    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 751     751    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 1,511          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 751          
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       1,508    
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       1,508    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 2,353     2,353    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 632     632    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 2,353     2,353    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 632     632    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 2,353          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 632          
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       223    
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       1,304    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 1,449     1,449    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 714     714    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 1,449     1,449    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 714     714    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 1,449          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 714          
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       896    
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       896    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 1,431     1,431    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 425     425    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 1,431     1,431    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 425     425    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 1,431          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 425          
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       490    
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       1,593    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 1,830     1,830    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 819     819    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 1,830     1,830    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 819     819    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 1,830          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 819          
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       163    
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       1,109    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 1,301     1,301    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 655     655    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 1,301     1,301    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 655     655    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 1,301          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 655          
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       462    
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       1,681    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 1,986     1,986    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 922     922    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 1,986     1,986    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 922     922    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 1,986          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 922          
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 810     810    
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 810     810    
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 810          
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       323    
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       1,100    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 1,271     1,271    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 671     671    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 1,271     1,271    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 671     671    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 1,271          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 671          
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       1,045    
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       1,045    
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 553     553    
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 553     553    
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 553          
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       518    
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       2,131    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 2,487     2,487    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,198     1,198    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 2,487     2,487    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,198     1,198    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 2,487          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 1,198          
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       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       374    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       2,056    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 2,430     2,430    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,257     1,257    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 2,430     2,430    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,257     1,257    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 2,430          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 1,257          
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       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       341    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       2,129    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 2,470     2,470    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,162     1,162    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 2,470     2,470    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,162     1,162    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 2,470          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 1,162          
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       939    
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       3,615    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 4,274     4,274    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,187     2,187    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 4,274     4,274    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,187     2,187    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 4,274          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 2,187          
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       1,282    
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       4,201    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 5,061     5,061    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,221     2,221    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 5,061     5,061    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,221     2,221    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 5,061          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 2,221          
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       1,462    
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       5,854    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 7,156     7,156    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,238     3,238    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 7,156     7,156    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,238     3,238    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 7,156          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 3,238          
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       717    
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       2,234    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 2,684     2,684    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,174     1,174    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 2,684     2,684    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,174     1,174    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 2,684          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 1,174          
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       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       452    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       2,044    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 2,496     2,496    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,120     1,120    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 2,496     2,496    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,120     1,120    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 2,496          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 1,120          
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       3,144    
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       3,144    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 3,690     3,690    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,377     1,377    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 3,690     3,690    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,377     1,377    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 3,690          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 1,377          
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 1,481     1,481    
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 1,481     1,481    
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 1,481          
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       3,379    
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       3,379    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 3,982     3,982    
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 3,982     3,982    
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 3,982          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 1,515          
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       2,367    
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       2,367    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 2,866     2,866    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,124     1,124    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 2,866     2,866    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,124     1,124    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 2,866          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 1,124          
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       4,663    
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       4,663    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 6,396     6,396    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,238     2,238    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 6,396     6,396    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,238     2,238    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 6,396          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 2,238          
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       2,937    
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       2,937    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 3,750     3,750    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,330     1,330    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 3,750     3,750    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,330     1,330    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 3,750          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 1,330          
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       10,802    
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       10,802    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 14,416     14,416    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,699     3,699    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 14,416     14,416    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,699     3,699    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 14,416          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 3,699          
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 1,084     1,084    
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 1,084     1,084    
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 1,084          
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       9,208    
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       9,208    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 10,684     10,684    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,779     3,779    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 10,684     10,684    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,779     3,779    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 10,684          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 3,779          
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       (7,979)    
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       3,780    
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 3,780     3,780    
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 3,780     3,780    
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 3,780          
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 1,522     1,522    
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 1,522     1,522    
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 1,522          
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 1,250     1,250    
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 1,250     1,250    
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 1,250          
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       1,155    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       834    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       4,614    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 5,448     5,448    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,736     2,736    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 5,448     5,448    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,736     2,736    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 5,448          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 2,736          
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       1,333    
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       10,462    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 13,196     13,196    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,094     2,094    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 13,196     13,196    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,094     2,094    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 13,196          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 2,094          
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       (591)    
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       4,860    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 7,236     7,236    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 917     917    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 7,236     7,236    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 917     917    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 7,236          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 917          
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       (362)    
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       4,189    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 5,114     5,114    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 843     843    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 5,114     5,114    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 843     843    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 5,114          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 843          
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       2,221    
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       14,362    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 17,268     17,268    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,884     2,884    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 17,268     17,268    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,884     2,884    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 17,268          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 2,884          
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       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       3,787    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       9,834    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 13,621     13,621    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,137     2,137    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 13,621     13,621    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,137     2,137    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 13,621          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 2,137          
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       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       890    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       5,925    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 6,815     6,815    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 636     636    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 6,815     6,815    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 636     636    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 6,815          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 636          
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       229    
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       6,767    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 7,666     7,666    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 547     547    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 7,666     7,666    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 547     547    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 7,666          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 547          
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       49,010    
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       156,653    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 166,472     166,472    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 44,985     44,985    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 166,472     166,472    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 44,985     44,985    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 166,472          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 44,985          
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       9,873    
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       20,851    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 23,153     23,153    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,678     4,678    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 23,153     23,153    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,678     4,678    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 23,153          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 4,678          
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       4,635    
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       7,558    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 8,059     8,059    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,308     2,308    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 8,059     8,059    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,308     2,308    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 8,059          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 2,308          
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       2,958    
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       6,197    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 6,817     6,817    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,863     1,863    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 6,817     6,817    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,863     1,863    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 6,817          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 1,863          
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       3,002    
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       7,926    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 8,729     8,729    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,424     2,424    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 8,729     8,729    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,424     2,424    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 8,729          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 2,424          
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       15,048    
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       40,650    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 44,003     44,003    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,730     9,730    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 44,003     44,003    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,730     9,730    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 44,003          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 9,730          
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       12,399    
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       96,211    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 112,668     112,668    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 21,907     21,907    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 112,668     112,668    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 21,907     21,907    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 112,668          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 21,907          
Pittsburgh, PA - East Liberty - 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       2,478    
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       2,478    
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 2,478     2,478    
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 2,478     2,478    
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 2,478          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 0          
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       3,737    
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       14,731    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 14,731     14,731    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,361     8,361    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 14,731     14,731    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,361     8,361    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 14,731          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 8,361          
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       16,512    
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       16,512    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 16,830     16,830    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,022     8,022    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 16,830     16,830    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,022     8,022    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 16,830          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 8,022          
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       7,984    
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       25,614    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 28,292     28,292    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 15,194     15,194    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 28,292     28,292    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 15,194     15,194    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 28,292          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 15,194          
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       2,901    
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       7,513    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 8,474     8,474    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,939     3,939    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 8,474     8,474    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,939     3,939    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 8,474          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 3,939          
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       11,549    
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       11,549    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 12,649     12,649    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,538     4,538    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 12,649     12,649    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,538     4,538    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 12,649          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 4,538          
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       1,527    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       722    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       6,133    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 6,855     6,855    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,625     3,625    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 6,855     6,855    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,625     3,625    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 6,855          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 3,625          
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       1,295    
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       2,705    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 3,167     3,167    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,492     1,492    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 3,167     3,167    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,492     1,492    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 3,167          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 1,492          
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       (908)    
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       722    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 851     851    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 413     413    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 851     851    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 413     413    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 851          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 413          
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       (1,417)    
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       218    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 341     341    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 156     156    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 341     341    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 156     156    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 341          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 156          
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       11,829    
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       11,829    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 12,967     12,967    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,600     5,600    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 12,967     12,967    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,600     5,600    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 12,967          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 5,600          
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       10,563    
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       10,563    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 11,827     11,827    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,716     4,716    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 11,827     11,827    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,716     4,716    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 11,827          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 4,716          
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       2,861    
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       37,433    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 38,724     38,724    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,201     3,201    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 38,724     38,724    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,201     3,201    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 38,724          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 3,201          
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       13,965    
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       13,965    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 15,347     15,347    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,464     4,464    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 15,347     15,347    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,464     4,464    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 15,347          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 4,464          
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       11,185    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,335    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       11,185    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 12,520     12,520    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,208     3,208    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 12,520     12,520    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,208     3,208    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 12,520          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 3,208          
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       433    
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       3,677    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 4,286     4,286    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,325     2,325    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 4,286     4,286    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,325     2,325    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 4,286          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 2,325          
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       (9,924)    
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       3,079    
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 3,193     3,193    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 53     53    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 3,193     3,193    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 53     53    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 3,193          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 53          
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       22,697    
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       22,697    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 24,945     24,945    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,344     9,344    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 24,945     24,945    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,344     9,344    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 24,945          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 9,344          
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       19,967    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,152    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       19,967    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 22,119     22,119    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,708     6,708    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 22,119     22,119    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,708     6,708    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 22,119          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 6,708          
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       20,166    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       576    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       20,166    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 20,742     20,742    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,057     6,057    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 20,742     20,742    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,057     6,057    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 20,742          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 6,057          
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       15,994    
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       15,994    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 17,838     17,838    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,025     8,025    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 17,838     17,838    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,025     8,025    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 17,838          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 8,025          
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       8,035    
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       8,035    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 8,299     8,299    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,094     4,094    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 8,299     8,299    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,094     4,094    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 8,299          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 4,094          
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 11     11    
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 11     11    
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 11          
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       786    
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       7,097    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 8,547     8,547    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,769     1,769    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 8,547     8,547    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,769     1,769    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 8,547          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 1,769          
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       3,141    
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       3,141    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 3,397     3,397    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,416     1,416    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 3,397     3,397    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,416     1,416    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 3,397          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 1,416          
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       10,445    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       691    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       10,445    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 11,136     11,136    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,984     4,984    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 11,136     11,136    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,984     4,984    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 11,136          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 4,984          
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       8,741    
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       8,741    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 9,030     9,030    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,893     6,893    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 9,030     9,030    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,893     6,893    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 9,030          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 6,893          
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 3     3    
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 3     3    
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 3          
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       2,665    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       16,939    
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       2,665    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       16,939    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 19,604     19,604    
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 19,604     19,604    
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 19,604          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 1,027          
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       70,353    
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       70,353    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 71,559     71,559    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 22,364     22,364    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 71,559     71,559    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 22,364     22,364    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 71,559          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 22,364          
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       2,427    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       878    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       6,157    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 7,035     7,035    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,712     3,712    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 7,035     7,035    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,712     3,712    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 7,035          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 3,712          
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 1,968     1,968    
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 1,968     1,968    
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 1,968          
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       1,649    
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       4,465    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 5,384     5,384    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,536     2,536    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 5,384     5,384    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,536     2,536    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 5,384          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 2,536          
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       4,781    
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       4,781    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 5,367     5,367    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,437     2,437    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 5,367     5,367    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,437     2,437    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 5,367          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 2,437          
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       6,533    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,485    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       6,533    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 8,018     8,018    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,774     3,774    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 8,018     8,018    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,774     3,774    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 8,018          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 3,774          
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       5,302    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       492    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       9,340    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 9,832     9,832    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,750     2,750    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 9,832     9,832    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,750     2,750    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 9,832          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 2,750          
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       1,505    
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       4,170    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 4,836     4,836    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,514     2,514    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 4,836     4,836    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,514     2,514    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 4,836          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 2,514          
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       2,080    
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       6,613    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 7,699     7,699    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,776     3,776    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 7,699     7,699    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,776     3,776    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 7,699          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 3,776          
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       2,901    
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       7,312    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 8,174     8,174    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,156     4,156    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 8,174     8,174    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,156     4,156    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 8,174          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 4,156          
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       7,119    
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       18,862    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 21,215     21,215    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,579     10,579    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 21,215     21,215    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,579     10,579    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 21,215          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 10,579          
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       6,186    
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       6,186    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 6,658     6,658    
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 6,658     6,658    
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 6,658          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 3,332          
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       6,175    
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       6,175    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 6,901     6,901    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,439     3,439    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 6,901     6,901    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,439     3,439    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 6,901          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 3,439          
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       8,852    
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       27,702    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 30,353     30,353    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,131     4,131    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 30,353     30,353    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,131     4,131    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 30,353          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 4,131          
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       3,654    
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       33,918    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 36,181     36,181    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,015     7,015    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 36,181     36,181    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,015     7,015    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 36,181          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 7,015          
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 2,343     2,343    
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 2,343     2,343    
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 2,343          
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       (2)    
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       3,507    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 3,548     3,548    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 446     446    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 3,548     3,548    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 446     446    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 3,548          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 446          
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       (1)    
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       2,321    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 2,348     2,348    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 295     295    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 2,348     2,348    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 295     295    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 2,348          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 295          
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       26,949    
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       95,324    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 106,612     106,612    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 16,622     16,622    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 106,612     106,612    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 16,622     16,622    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 106,612          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 16,622          
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       2,248    
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       8,232    
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 8,232     8,232    
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 8,232     8,232    
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 8,232          
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       4,868    
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       70,749    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 78,016     78,016    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,696     7,696    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 78,016     78,016    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,696     7,696    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 78,016          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 7,696          
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       4,536    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       61,752    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       21,580    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       149,889    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 171,469     171,469    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 14,810     14,810    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 171,469     171,469    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 14,810     14,810    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 171,469          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 14,810          
Raleigh, NC - Hargett - 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       6,582    
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       6,582    
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 6,582     6,582    
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 6,582     6,582    
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 6,582          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 0          
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       32,075    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       40,392    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       (23,161)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       10,466    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       8,914    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       50,858    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 59,772     59,772    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 28,224     28,224    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 59,772     59,772    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 28,224     28,224    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 59,772          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 28,224          
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       3,650    
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       8,961    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 10,300     10,300    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,062     5,062    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 10,300     10,300    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,062     5,062    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 10,300          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 5,062          
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       2,488    
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       8,593    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 9,957     9,957    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,612     3,612    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 9,957     9,957    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,612     3,612    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 9,957          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 3,612          
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       (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       1,749    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       12,875    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 14,624     14,624    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,876     5,876    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 14,624     14,624    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,876     5,876    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 14,624          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 5,876          
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       2,781    
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       7,126    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 8,222     8,222    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,554     3,554    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 8,222     8,222    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,554     3,554    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 8,222          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 3,554          
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       4,493    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       979    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       4,493    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 5,472     5,472    
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 5,472     5,472    
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 5,472          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 2,080          
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       14,117    
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       14,117    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 15,827     15,827    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,815     6,815    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 15,827     15,827    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,815     6,815    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 15,827          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 6,815          
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       9,684    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,012    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       9,684    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 10,696     10,696    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,447     3,447    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 10,696     10,696    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,447     3,447    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 10,696          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 3,447          
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       7,505    
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       7,505    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 8,299     8,299    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,429     3,429    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 8,299     8,299    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,429     3,429    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 8,299          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 3,429          
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       5,732    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,096    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       5,732    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 6,828     6,828    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,729     2,729    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 6,828     6,828    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,729     2,729    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 6,828          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 2,729          
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       7,770    
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       7,770    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 8,810     8,810    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,143     3,143    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 8,810     8,810    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,143     3,143    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 8,810          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 3,143          
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       1,488    
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       6,313    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 7,518     7,518    
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 7,518     7,518    
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 7,518          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 3,440          
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       (3,652)    
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       9,607    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 11,120     11,120    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,710     3,710    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 11,120     11,120    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,710     3,710    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 11,120          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 3,710          
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       (3,456)    
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       13,625    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 15,494     15,494    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,144     5,144    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 15,494     15,494    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,144     5,144    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 15,494          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 5,144          
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       3,039    
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       11,698    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 13,867     13,867    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,575     6,575    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 13,867     13,867    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,575     6,575    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 13,867          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 6,575          
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       12,607    
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       12,607    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 13,575     13,575    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,969     5,969    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 13,575     13,575    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,969     5,969    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 13,575          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 5,969          
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       10,812    
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       10,812    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 12,790     12,790    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,549     3,549    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 12,790     12,790    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,549     3,549    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 12,790          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 3,549          
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       4    
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       4    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 1,516     1,516    
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 1,516     1,516    
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 1,516          
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       20,736    
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       20,736    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 21,092     21,092    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,470     9,470    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 21,092     21,092    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,470     9,470    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 21,092          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 9,470          
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       2,221    
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       11,085    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 12,706     12,706    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,968     4,968    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 12,706     12,706    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,968     4,968    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 12,706          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 4,968          
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       11,925    
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       11,925    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 14,201     14,201    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,867     3,867    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 14,201     14,201    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,867     3,867    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 14,201          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 3,867          
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       1,925    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       25,868    
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       1,925    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       25,868    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 27,793     27,793    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,177     1,177    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 27,793     27,793    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,177     1,177    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 27,793          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 1,177          
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       4,300    
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       15,930    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 17,047     17,047    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,031     8,031    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 17,047     17,047    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,031     8,031    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 17,047          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 8,031          
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       12,888    
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       12,888    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 14,231     14,231    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,121     6,121    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 14,231     14,231    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,121     6,121    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 14,231          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 6,121          
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       10,685    
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       10,685    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 11,680     11,680    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,891     4,891    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 11,680     11,680    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,891     4,891    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 11,680          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 4,891          
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       11,900    
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       11,900    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 12,855     12,855    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,966     3,966    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 12,855     12,855    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,966     3,966    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 12,855          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 3,966          
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       1,576    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,316    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       7,612    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 8,928     8,928    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,801     3,801    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 8,928     8,928    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,801     3,801    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 8,928          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 3,801          
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       2,218    
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       4,565    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 5,158     5,158    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,930     1,930    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 5,158     5,158    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,930     1,930    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 5,158          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 1,930          
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       1,090    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       914    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       9,339    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 10,253     10,253    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,828     3,828    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 10,253     10,253    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,828     3,828    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 10,253          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 3,828          
Richmond, VA - Elks Pass - 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       3,326    
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       3,326    
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 3,326     3,326    
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 3,326     3,326    
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 3,326          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 0          
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       6,586    
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       23,056    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 25,729     25,729    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,733     6,733    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 25,729     25,729    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,733     6,733    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 25,729          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 6,733          
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       3,634    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,276    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       15,451    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 17,727     17,727    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,667     6,667    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 17,727     17,727    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,667     6,667    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 17,727          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 6,667          
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       28,339    
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       28,339    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 32,799     32,799    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,783     12,783    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 32,799     32,799    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,783     12,783    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 32,799          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 12,783          
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       22,651    
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       22,651    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 23,532     23,532    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,465     10,465    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 23,532     23,532    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,465     10,465    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 23,532          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 10,465          
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       37,682    
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       37,682    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 41,183     41,183    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 11,112     11,112    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 41,183     41,183    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 11,112     11,112    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 41,183          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 11,112          
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 3,994     3,994    
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 3,994     3,994    
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 3,994          
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       6,818    
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       6,818    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 6,818     6,818    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,193     2,193    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 6,818     6,818    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,193     2,193    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 6,818          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 2,193          
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       3,833    
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       10,090    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 10,090     10,090    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,115     5,115    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 10,090     10,090    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,115     5,115    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 10,090          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 5,115          
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       41,019    
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       41,108    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 43,214     43,214    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 22,270     22,270    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 43,214     43,214    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 22,270     22,270    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 43,214          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 22,270          
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       15,376    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       2,672    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       31,224    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 33,896     33,896    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 15,604     15,604    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 33,896     33,896    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 15,604     15,604    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 33,896          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 15,604          
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       7,168    
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       14,537    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 14,537     14,537    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,731     6,731    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 14,537     14,537    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,731     6,731    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 14,537          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 6,731          
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       5,636    
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       5,636    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 5,636     5,636    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,213     2,213    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 5,636     5,636    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,213     2,213    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 5,636          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 2,213          
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       14,672    
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       39,924    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 41,940     41,940    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 16,623     16,623    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 41,940     41,940    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 16,623     16,623    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 41,940          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 16,623          
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       1,805    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       11,212    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 11,212     11,212    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,680     5,680    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 11,212     11,212    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,680     5,680    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 11,212          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 5,680          
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       5,673    
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       22,067    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 22,067     22,067    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 11,582     11,582    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 22,067     22,067    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 11,582     11,582    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 22,067          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 11,582          
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       5,790    
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       5,790    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 5,790     5,790    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,884     2,884    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 5,790     5,790    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,884     2,884    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 5,790          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 2,884          
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       3,197    
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       17,699    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 19,153     19,153    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,374     9,374    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 19,153     19,153    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,374     9,374    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 19,153          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 9,374          
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       5,297    
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       25,195    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 28,413     28,413    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 13,533     13,533    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 28,413     28,413    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 13,533     13,533    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 28,413          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 13,533          
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       1,532    
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       6,718    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 7,844     7,844    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,403     3,403    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 7,844     7,844    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,403     3,403    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 7,844          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 3,403          
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       5,027    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       2,227    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       9,970    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       2,227    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 12,197     12,197    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 158     158    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 12,197     12,197    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 158     158    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 12,197          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 158          
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       5,651    
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       10,177    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 12,708     12,708    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,497     4,497    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 12,708     12,708    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,497     4,497    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 12,708          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 4,497          
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       3,462    
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       25,825    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 27,674     27,674    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,716     5,716    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 27,674     27,674    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,716     5,716    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 27,674          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 5,716          
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       4,483    
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       24,071    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 25,373     25,373    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,377     5,377    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 25,373     25,373    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,377     5,377    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 25,373          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 5,377          
Tampa, FL - 5332 Avion 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       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       32,444    
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       32,444    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 38,754     38,754    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,099     3,099    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 38,754     38,754    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,099     3,099    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 38,754          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 3,099          
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       22,917    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       1,980    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       125,055    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 127,035     127,035    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 17,025     17,025    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 127,035     127,035    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 17,025     17,025    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 127,035          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance 17,025          
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       613,041    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements       3,004,028    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]            
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land       6,032    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements       2,153,703    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land       619,073    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements       5,157,731    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 5,776,804     5,776,804    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,405,341     1,405,341    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Total real estate assets per Schedule III 5,776,804     5,776,804    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,405,341     1,405,341    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]            
Real estate assets, ending balance 5,776,804          
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]            
Accumulated depreciation, ending balance $ 1,405,341          
Minimum [Member] | Atlanta, GA - 1700 Century Circle [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Atlanta, GA - 1800 Century Boulevard [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Atlanta, GA - 1825 Century Boulevard [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Atlanta, GA - 1875 Century Boulevard [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Atlanta, GA - 1900 Century Boulevard [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Atlanta, GA - 2200 Century Parkway [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Atlanta, GA - 2400 Century Center [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Atlanta, GA - 2500 Century Center [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Atlanta, GA - 2500/2635 Parking Garage [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Atlanta, GA - 2600 Century Parkway [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Atlanta, GA - 2635 Century Parkway [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Atlanta, GA - 2800 Century Parkway [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Atlanta, GA - 50 Glenlake [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Atlanta, GA - Century Plaza I [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Atlanta, GA - Century Plaza II [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Atlanta, GA - Charles W. Grant Parkway [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Atlanta, GA - 5405 Windward Parkway [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Atlanta, GA - Riverpoint - Land [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Atlanta, GA - Riverwood 100 [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Atlanta, GA - Two Alliance Center [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Atlanta, GA - One Alliance Center [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Atlanta, GA - 10 Glenlake North [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Atlanta, GA - 10 Glenlake South [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Atlanta, GA - Riverwood 200 [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Atlanta, GA - Riverwood 300 - Land [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Atlanta, GA - Monarch Tower [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Atlanta, GA - Monarch Plaza [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Charlotte, NC - Bank of America Tower [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Memphis, TN - Triad Centre I [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Memphis, TN - Triad Centre II [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Memphis, TN - Centrum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Memphis, TN - Comcast [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Memphis, TN - International Place II [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Memphis, TN - PennMarc Centre [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Memphis, TN - Colonnade [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Memphis, TN - Crescent Center [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Memphis, TN - Triad Center III [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Memphis, TN - Capital Grille [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Memphis, TN - Seasons 52 [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Nashville, TN - 3322 West End [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Nashville, TN - 3401 West End [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Nashville, TN - 5310 Maryland Way [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Nashville, TN - Cool Springs I & II Deck [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Nashville, TN - Cool Springs III & IV Deck [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Nashville, TN - Cool Springs I [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Nashville, TN - Cool Springs II [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Nashville, TN - Cool Springs III [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Nashville, TN - Cool Springs IV [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Nashville, TN - Cool Springs V (Healthways) [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Nashville, TN - Harpeth on the Green II [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Nashville, TN - Harpeth on the Green III [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Nashville, TN - Harpeth on the Green IV [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Nashville, TN - Harpeth on The Green V [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Nashville, TN - Hickory Trace [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Nashville, TN - Highwoods Plaza I [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Nashville, TN - Highwoods Plaza II [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Nashville, TN - Seven Springs I [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Nashville, TN - SouthPointe [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Nashville, TN - Ramparts [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Nashville, TN - Westwood South [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Nashville, TN - 100 Winners Circle [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Nashville, TN - The Pinnacle at Symphony Place [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Nashville, TN - Seven Springs East (LifePoint) [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Nashville, TN - The Shops at Seven Springs [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Nashville, TN - Seven Springs West [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Nashville, TN - Seven Springs II [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Nashville, TN - Bridgestone Tower [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Nashville, TN - MARS Campus [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Nashville, TN - 5501 Virginia Way [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | South Florida - The 1800 Eller Drive Building [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Orlando - Seaside Plaza [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Orlando - Capital Plaza Two [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Orlando - Capital Plaza One [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Orlando - Landmark Center Two [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Orlando - Landmark Center One [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Orlando - 300 South Orange [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Orlando, FL - Eola Centre [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 6348 Burnt Poplar Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 6350 Burnt Poplar Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 420 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 418 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 416 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 7031 Albert Pick Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 7029 Albert Pick Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 7025 Albert Pick Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 7027 Albert Pick Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 7009 Albert Pick Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 426 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 422 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 406 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 7021 Albert Pick Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 7019 Albert Pick Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 7015 Albert Pick Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 7017 Albert Pick Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 7011 Albert Pick Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 424 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 410 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 412 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 408 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 414 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 237 Burgess Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 235 Burgess Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 241 Burgess Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 243 Burgess Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 496 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 494 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 486 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 488 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 490 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 651 Brigham Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 657 Brigham Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 653 Brigham Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 1501 Highwoods Boulevard [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 4200 Tudor Lane [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 4224 Tudor Lane [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 7023 Albert Pick [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 1126 North Church St [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 1130 North Church St [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 1132 North Church St [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 628 Green Valley [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 701 Green Valley [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 661 Brigham Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Greensboro, NC - 655 Brigham Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Pittsburgh, PA - One PPG Place [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Pittsburgh, PA - Two PPG Place [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Pittsburgh, PA - Three PPG Place [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Pittsburgh, PA - Four PPG Place [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Pittsburgh, PA - Five PPG Place [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Pittsburgh, PA - Six PPG Place [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Pittsburgh, PA - EQT Plaza [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - 3600 Glenwood Avenue [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - 3737 Glenwood Avenue [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - 4800 North Park [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - 5000 North Park [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - 801 Raleigh Corporate Center [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - 2500 Blue Ridge Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - 2418 Blue Ridge Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - Cape Fear [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - Catawba [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - 2000 CentreGreen [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - 4000 CentreGreen [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - 5000 CentreGreen [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - 3000 CentreGreen [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - 1000 CentreGreen [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - Cottonwood [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - GlenLake - Land [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - GlenLake One [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - GlenLake Four [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - GlenLake Six [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - 701 Raleigh Corporate Center [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - Highwoods Centre [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - Inveresk Parcel 2 - Land [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - 4201 Lake Boone Trail [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - 4620 Creekstone Drive [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - 4825 Creekstone Drive [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - Pamlico [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - Progress Center Renovation [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - 751 Corporate Center [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - PNC Plaza [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - 4301 Lake Boone Trail [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - 4207 Lake Boone Trail [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - 2301 Rexwoods Drive [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - 4325 Lake Boone Trail [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - 2300 Rexwoods Drive [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - 4709 Creekstone Drive [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - 4700 Six Forks Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - 4700 Homewood Court [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - 4800 Six Forks Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - Smoketree Tower [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - 4601 Creekstone Drive [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - 4625 Creekstone Drive [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - 11000 Weston Parkway [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - GlenLake Five [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - 11800 Weston Parkway [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - CentreGreen Cafe [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - CentreGreen Fitness Center [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - One City Plaza [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - Charter Square [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - Metlife Global Technology Campus [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Raleigh, NC - Other Property [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Richmond, VA - 4900 Cox Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Richmond, VA - Colonnade Building [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Richmond, VA - Markel 4521 [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Richmond, VA - Hamilton Beach [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Richmond, VA - Highwoods Commons [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Richmond, VA - Highwoods One [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Richmond, VA - Highwoods Two [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Richmond, VA - Highwoods Five [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Richmond, VA - Highwoods Plaza [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Richmond, VA - Innslake Center [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Richmond, VA - Highwoods Centre [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Richmond, VA - Markel 4501 [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Richmond, VA - 4600 Cox Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Richmond, VA - North Park [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Richmond, VA - North Shore Commons I [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Richmond, VA - North Shore Commons II [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Richmond, VA - One Shockoe Plaza [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Richmond, VA - Lake Brook Commons [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Richmond, VA - Highwoods Three [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Richmond, VA - Stony Point VI (Virginia Urology) [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Richmond, VA - Stony Point I [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Richmond, VA - Stony Point II [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Richmond, VA - Stony Point III [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Richmond, VA - Stony Point IV [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Richmond, VA - Virginia Mutual [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Richmond, VA - Waterfront Plaza [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Richmond, VA - Innsbrook Centre [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Tampa, FL - Meridian Three [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Tampa, FL - Bayshore Place [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Tampa, FL - 5525 Gray Street [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Tampa, FL - Highwoods Preserve Building V [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Tampa, FL - Highwoods Bay Center I [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Tampa, FL - HIW Preserve Building VII [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Tampa, FL - HIW Preserve VII Garage [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Tampa, FL - Horizon [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Tampa, FL - LakePointe One [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Tampa, FL - LakePointe Two [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Tampa, FL - Lakeside [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Tampa, FL - Lakeside/Parkside Garage [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Tampa, FL - One Harbour Place [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Tampa, FL - Parkside [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Tampa, FL - Pavilion [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Tampa, FL - Pavilion Parking Garage [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Tampa, FL - Spectrum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Tampa, FL - Tower Place [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Tampa, FL - Westshore Square [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Tampa, FL - Independence Park - Land [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Tampa, FL - Independence One [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Tampa, FL - Meridian One [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Tampa, FL - Meridian Two [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Tampa, FL - 5332 Avion Park [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Minimum [Member] | Tampa, FL - Suntrust Financial Centre [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 5 years          
Maximum [Member] | Atlanta, GA - 1700 Century Circle [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Atlanta, GA - 1800 Century Boulevard [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Atlanta, GA - 1825 Century Boulevard [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Atlanta, GA - 1875 Century Boulevard [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Atlanta, GA - 1900 Century Boulevard [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Atlanta, GA - 2200 Century Parkway [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Atlanta, GA - 2400 Century Center [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Atlanta, GA - 2500 Century Center [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Atlanta, GA - 2500/2635 Parking Garage [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Atlanta, GA - 2600 Century Parkway [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Atlanta, GA - 2635 Century Parkway [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Atlanta, GA - 2800 Century Parkway [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Atlanta, GA - 50 Glenlake [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Atlanta, GA - Century Plaza I [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Atlanta, GA - Century Plaza II [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Atlanta, GA - Charles W. Grant Parkway [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Atlanta, GA - 5405 Windward Parkway [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Atlanta, GA - Riverpoint - Land [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Atlanta, GA - Riverwood 100 [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Atlanta, GA - Two Alliance Center [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Atlanta, GA - One Alliance Center [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Atlanta, GA - 10 Glenlake North [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Atlanta, GA - 10 Glenlake South [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Atlanta, GA - Riverwood 200 [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Atlanta, GA - Riverwood 300 - Land [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Atlanta, GA - Monarch Tower [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Atlanta, GA - Monarch Plaza [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Charlotte, NC - Bank of America Tower [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Memphis, TN - Triad Centre I [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Memphis, TN - Triad Centre II [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Memphis, TN - Centrum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Memphis, TN - Comcast [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Memphis, TN - International Place II [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Memphis, TN - PennMarc Centre [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Memphis, TN - Colonnade [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Memphis, TN - Crescent Center [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Memphis, TN - Triad Center III [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Memphis, TN - Capital Grille [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Memphis, TN - Seasons 52 [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Nashville, TN - 3322 West End [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Nashville, TN - 3401 West End [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Nashville, TN - 5310 Maryland Way [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Nashville, TN - Cool Springs I & II Deck [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Nashville, TN - Cool Springs III & IV Deck [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Nashville, TN - Cool Springs I [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Nashville, TN - Cool Springs II [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Nashville, TN - Cool Springs III [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Nashville, TN - Cool Springs IV [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Nashville, TN - Cool Springs V (Healthways) [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Nashville, TN - Harpeth on the Green II [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Nashville, TN - Harpeth on the Green III [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Nashville, TN - Harpeth on the Green IV [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Nashville, TN - Harpeth on The Green V [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Nashville, TN - Hickory Trace [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Nashville, TN - Highwoods Plaza I [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Nashville, TN - Highwoods Plaza II [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Nashville, TN - Seven Springs I [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Nashville, TN - SouthPointe [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Nashville, TN - Ramparts [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Nashville, TN - Westwood South [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Nashville, TN - 100 Winners Circle [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Nashville, TN - The Pinnacle at Symphony Place [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Nashville, TN - Seven Springs East (LifePoint) [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Nashville, TN - The Shops at Seven Springs [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Nashville, TN - Seven Springs West [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Nashville, TN - Seven Springs II [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Nashville, TN - Bridgestone Tower [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Nashville, TN - MARS Campus [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Nashville, TN - 5501 Virginia Way [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | South Florida - The 1800 Eller Drive Building [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Orlando - Seaside Plaza [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Orlando - Capital Plaza Two [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Orlando - Capital Plaza One [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Orlando - Landmark Center Two [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Orlando - Landmark Center One [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Orlando - 300 South Orange [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Orlando, FL - Eola Centre [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 6348 Burnt Poplar Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 6350 Burnt Poplar Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 420 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 418 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 416 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 7031 Albert Pick Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 7029 Albert Pick Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 7025 Albert Pick Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 7027 Albert Pick Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 7009 Albert Pick Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 426 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 422 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 406 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 7021 Albert Pick Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 7019 Albert Pick Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 7015 Albert Pick Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 7017 Albert Pick Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 7011 Albert Pick Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 424 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 410 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 412 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 408 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 414 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 237 Burgess Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 235 Burgess Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 241 Burgess Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 243 Burgess Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 496 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 494 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 486 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 488 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 490 Gallimore Dairy Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 651 Brigham Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 657 Brigham Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 653 Brigham Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 1501 Highwoods Boulevard [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 4200 Tudor Lane [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 4224 Tudor Lane [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 7023 Albert Pick [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 1126 North Church St [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 1130 North Church St [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 1132 North Church St [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 628 Green Valley [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 701 Green Valley [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 661 Brigham Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Greensboro, NC - 655 Brigham Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Pittsburgh, PA - One PPG Place [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Pittsburgh, PA - Two PPG Place [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Pittsburgh, PA - Three PPG Place [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Pittsburgh, PA - Four PPG Place [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Pittsburgh, PA - Five PPG Place [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Pittsburgh, PA - Six PPG Place [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Pittsburgh, PA - EQT Plaza [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - 3600 Glenwood Avenue [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - 3737 Glenwood Avenue [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - 4800 North Park [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - 5000 North Park [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - 801 Raleigh Corporate Center [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - 2500 Blue Ridge Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - 2418 Blue Ridge Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - Cape Fear [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - Catawba [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - 2000 CentreGreen [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - 4000 CentreGreen [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - 5000 CentreGreen [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - 3000 CentreGreen [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - 1000 CentreGreen [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - Cottonwood [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - GlenLake - Land [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - GlenLake One [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - GlenLake Four [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - GlenLake Six [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - 701 Raleigh Corporate Center [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - Highwoods Centre [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - Inveresk Parcel 2 - Land [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - 4201 Lake Boone Trail [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - 4620 Creekstone Drive [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - 4825 Creekstone Drive [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - Pamlico [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - Progress Center Renovation [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - 751 Corporate Center [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - PNC Plaza [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - 4301 Lake Boone Trail [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - 4207 Lake Boone Trail [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - 2301 Rexwoods Drive [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - 4325 Lake Boone Trail [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - 2300 Rexwoods Drive [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - 4709 Creekstone Drive [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - 4700 Six Forks Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - 4700 Homewood Court [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - 4800 Six Forks Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - Smoketree Tower [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - 4601 Creekstone Drive [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - 4625 Creekstone Drive [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - 11000 Weston Parkway [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - GlenLake Five [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - 11800 Weston Parkway [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - CentreGreen Cafe [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - CentreGreen Fitness Center [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - One City Plaza [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - Charter Square [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - Metlife Global Technology Campus [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Raleigh, NC - Other Property [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Richmond, VA - 4900 Cox Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Richmond, VA - Colonnade Building [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Richmond, VA - Markel 4521 [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Richmond, VA - Hamilton Beach [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Richmond, VA - Highwoods Commons [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Richmond, VA - Highwoods One [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Richmond, VA - Highwoods Two [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Richmond, VA - Highwoods Five [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Richmond, VA - Highwoods Plaza [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Richmond, VA - Innslake Center [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Richmond, VA - Highwoods Centre [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Richmond, VA - Markel 4501 [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Richmond, VA - 4600 Cox Road [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Richmond, VA - North Park [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Richmond, VA - North Shore Commons I [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Richmond, VA - North Shore Commons II [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Richmond, VA - One Shockoe Plaza [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Richmond, VA - Lake Brook Commons [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Richmond, VA - Highwoods Three [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Richmond, VA - Stony Point VI (Virginia Urology) [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Richmond, VA - Stony Point I [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Richmond, VA - Stony Point II [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Richmond, VA - Stony Point III [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Richmond, VA - Stony Point IV [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Richmond, VA - Virginia Mutual [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Richmond, VA - Waterfront Plaza [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Richmond, VA - Innsbrook Centre [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Tampa, FL - Meridian Three [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Tampa, FL - Bayshore Place [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Tampa, FL - 5525 Gray Street [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Tampa, FL - Highwoods Preserve Building V [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Tampa, FL - Highwoods Bay Center I [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Tampa, FL - HIW Preserve Building VII [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Tampa, FL - HIW Preserve VII Garage [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Tampa, FL - Horizon [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Tampa, FL - LakePointe One [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Tampa, FL - LakePointe Two [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Tampa, FL - Lakeside [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Tampa, FL - Lakeside/Parkside Garage [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Tampa, FL - One Harbour Place [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Tampa, FL - Parkside [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Tampa, FL - Pavilion [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Tampa, FL - Pavilion Parking Garage [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Tampa, FL - Spectrum [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Tampa, FL - Tower Place [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Tampa, FL - Westshore Square [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Tampa, FL - Independence Park - Land [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Tampa, FL - Independence One [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Tampa, FL - Meridian One [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Tampa, FL - Meridian Two [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Tampa, FL - 5332 Avion Park [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Maximum [Member] | Tampa, FL - Suntrust Financial Centre [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years          
Variable Interest Entity, Primary Beneficiary [Member]            
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Federal Income Tax Basis       370,800    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]            
Development in process exclusive of land included in Schedule III       $ 22,380