HIGHWOODS PROPERTIES, INC., 10-K filed on 2/8/2022
Annual Report
v3.22.0.1
Cover Page - USD ($)
$ in Billions
12 Months Ended
Dec. 31, 2021
Jan. 28, 2022
Jun. 30, 2021
Entity Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2021    
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    
ICFR Auditor Attestation Flag true    
Entity Shell Company false    
Entity Public Float     $ 4.6
Entity Common Stock, Shares Outstanding   104,892,780  
Documents Incorporated by Reference Portions of the Proxy Statement of Highwoods Properties, Inc. to be filed in connection with its Annual Meeting of Stockholders to be held May 10, 2022 are incorporated by reference in Part II, Item 5 and Part III, Items 10, 11, 12, 13 and 14.    
Entity Central Index Key 0000921082    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2021    
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    
ICFR Auditor Attestation Flag false    
Entity Shell Company false    
Entity Central Index Key 0000941713    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Amendment Flag false    
v3.22.0.1
Audit Information
12 Months Ended
Dec. 31, 2021
Auditor [Line Items]  
Auditor Name Deloitte & Touche LLP
Auditor Firm ID 34
Auditor Location Raleigh, North Carolina
Highwoods Realty Limited Partnership [Member]  
Auditor [Line Items]  
Auditor Name Deloitte & Touche LLP
Auditor Firm ID 34
Auditor Location Raleigh, North Carolina
v3.22.0.1
Consolidated Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Real estate assets, at cost:    
Land $ 549,228 $ 466,872
Buildings and tenant improvements 5,718,169 4,981,637
Development in-process 6,890 259,681
Land held for development 215,257 131,474
Total real estate assets 6,489,544 5,839,664
Less-accumulated depreciation (1,457,511) (1,418,379)
Net real estate assets 5,032,033 4,421,285
Real estate and other assets, net, held for sale 3,518 11,360
Cash and cash equivalents 23,152 109,322
Restricted cash 8,046 79,922
Accounts receivable 14,002 27,488
Mortgages and notes receivable 1,227 1,341
Accrued straight-line rents receivable 268,324 259,381
Investments in and advances to unconsolidated affiliates 7,383 27,104
Deferred leasing costs, net of accumulated amortization of $143,111 and $151,698, respectively 258,902 209,329
Prepaid expenses and other assets, net of accumulated depreciation of $21,408 and $21,154, respectively 78,551 62,885
Total Assets 5,695,138 5,209,417
Liabilities, Noncontrolling Interests in the Operating Partnership and Equity/Liabilities, Redeemable Operating Partnership Units and Capital:    
Mortgages and notes payable, net 2,788,915 2,470,021
Accounts payable, accrued expenses and other liabilities 294,976 268,727
Total Liabilities 3,083,891 2,738,748
Commitments and contingencies
Noncontrolling interests in the Operating Partnership 111,689 112,499
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), 28,821 and 28,826 shares issued and outstanding, respectively 28,821 28,826
Common Stock, $.01 par value, 200,000,000 authorized shares; 104,892,780 and 103,921,546 shares issued and outstanding, respectively 1,049 1,039
Additional paid-in capital 3,027,861 2,993,946
Distributions in excess of net income available for common stockholders (579,616) (686,225)
Accumulated other comprehensive loss (973) (1,462)
Total Stockholders’ Equity 2,477,142 2,336,124
Noncontrolling interests in consolidated affiliates 22,416 22,046
Total Equity/Capital: 2,499,558 2,358,170
Total Liabilities, Noncontrolling Interests in the Operating Partnership and Equity/Total Liabilities, Redeemable Operating Partnership Units and Capital 5,695,138 5,209,417
Highwoods Realty Limited Partnership [Member]    
Real estate assets, at cost:    
Land 549,228 466,872
Buildings and tenant improvements 5,718,169 4,981,637
Development in-process 6,890 259,681
Land held for development 215,257 131,474
Total real estate assets 6,489,544 5,839,664
Less-accumulated depreciation (1,457,511) (1,418,379)
Net real estate assets 5,032,033 4,421,285
Real estate and other assets, net, held for sale 3,518 11,360
Cash and cash equivalents 23,152 109,322
Restricted cash 8,046 79,922
Accounts receivable 14,002 27,488
Mortgages and notes receivable 1,227 1,341
Accrued straight-line rents receivable 268,324 259,381
Investments in and advances to unconsolidated affiliates 7,383 27,104
Deferred leasing costs, net of accumulated amortization of $143,111 and $151,698, respectively 258,902 209,329
Prepaid expenses and other assets, net of accumulated depreciation of $21,408 and $21,154, respectively 78,551 62,885
Total Assets 5,695,138 5,209,417
Liabilities, Noncontrolling Interests in the Operating Partnership and Equity/Liabilities, Redeemable Operating Partnership Units and Capital:    
Mortgages and notes payable, net 2,788,915 2,470,021
Accounts payable, accrued expenses and other liabilities 294,976 268,727
Total Liabilities 3,083,891 2,738,748
Commitments and contingencies
Redeemable Operating Partnership Units:    
Redeemable Operating Partnership Units, Common Units, 2,504,805 and 2,838,725 outstanding, respectively 111,689 112,499
Series A Preferred Units (liquidation preference $1,000 per unit), 28,821 and 28,826 units issued and outstanding, respectively 28,821 28,826
Total Redeemable Operating Partnership Units 140,510 141,325
Equity/Capital:    
General partner Common Units, 1,069,888 and 1,063,515 outstanding, respectively 24,492 23,087
Limited partner Common Units, 103,414,083 and 102,449,222 outstanding, respectively 2,424,802 2,285,673
Accumulated other comprehensive loss (973) (1,462)
Noncontrolling interests in consolidated affiliates 22,416 22,046
Total Equity/Capital: 2,470,737 2,329,344
Total Liabilities, Noncontrolling Interests in the Operating Partnership and Equity/Total Liabilities, Redeemable Operating Partnership Units and Capital $ 5,695,138 $ 5,209,417
v3.22.0.1
Consolidated Balance Sheets (Parentheticals) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Assets:    
Deferred leasing costs, accumulated amortization $ 143,111 $ 151,698
Prepaid expenses and other assets, accumulated amortization $ 21,408 $ 21,154
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) 28,821 28,826
Preferred Stock, shares outstanding (in shares) 28,821 28,826
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) 104,892,780 103,921,546
Common Stock, shares outstanding (in shares) 104,892,780 103,921,546
Highwoods Realty Limited Partnership [Member]    
Assets:    
Deferred leasing costs, accumulated amortization $ 143,111 $ 151,698
Prepaid expenses and other assets, accumulated amortization $ 21,408 $ 21,154
Redeemable Operating Partnership Units:    
Redeemable Common Units, outstanding (in shares) 2,504,805 2,838,725
Preferred Units liquidation preference (in dollars per share) $ 1,000 $ 1,000
Series A Preferred Units, issued (in shares) 28,821 28,826
Series A Preferred Units, outstanding (in shares) 28,821 28,826
Common Units:    
General partners' capital account, units outstanding (in shares) 1,069,888 1,063,515
Limited partners' capital account, units outstanding (in shares) 103,414,083 102,449,222
v3.22.0.1
Consolidated Statements of Income - USD ($)
shares in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Rental and other revenues $ 768,007 $ 736,900 $ 735,979
Operating expenses:      
Rental property and other expenses 236,436 231,825 248,511
Depreciation and amortization 259,255 241,585 254,504
Impairments of real estate assets 0 1,778 5,849
General and administrative 40,553 41,031 44,067
Total operating expenses 536,244 516,219 552,931
Interest expense 85,853 80,962 81,648
Other income/(loss) 1,394 (1,707) (2,510)
Gains on disposition of property 174,059 215,897 39,517
Equity in earnings of unconsolidated affiliates 1,947 4,005 3,276
Net income 323,310 357,914 141,683
Net (income) attributable to noncontrolling interests in the Operating Partnership (8,321) (9,338) (3,551)
Net (income) attributable to noncontrolling interests in consolidated affiliates (1,712) (1,174) (1,214)
Dividends on Preferred Stock (2,486) (2,488) (2,488)
Net income available for common stockholders $ 310,791 $ 344,914 $ 134,430
Earnings per Common Share - basic:      
Net income available for common stockholders (in dollars per share) $ 2.98 $ 3.32 $ 1.30
Weighted average Common Shares outstanding - basic (in shares) 104,232 103,876 103,692
Earnings per Common Share - diluted:      
Net income available for common stockholders (in dollars per share) $ 2.98 $ 3.32 $ 1.30
Weighted average Common Shares outstanding - diluted (in shares) 107,061 106,714 106,445
Highwoods Realty Limited Partnership [Member]      
Rental and other revenues $ 768,007 $ 736,900 $ 735,979
Operating expenses:      
Rental property and other expenses 236,436 231,825 248,511
Depreciation and amortization 259,255 241,585 254,504
Impairments of real estate assets 0 1,778 5,849
General and administrative 40,553 41,031 44,067
Total operating expenses 536,244 516,219 552,931
Interest expense 85,853 80,962 81,648
Other income/(loss) 1,394 (1,707) (2,510)
Gains on disposition of property 174,059 215,897 39,517
Equity in earnings of unconsolidated affiliates 1,947 4,005 3,276
Net income 323,310 357,914 141,683
Net (income) attributable to noncontrolling interests in consolidated affiliates (1,712) (1,174) (1,214)
Distributions on Preferred Units (2,486) (2,488) (2,488)
Net income available for common unitholders $ 319,112 $ 354,252 $ 137,981
Earnings per Common Unit - basic:      
Net income available for common unitholders (in dollars per share) $ 2.99 $ 3.33 $ 1.30
Weighted average Common Units outstanding - basic (in shares) 106,634 106,297 106,014
Earnings per Common Unit - diluted:      
Net income available for common unitholders (in dollars per share) $ 2.99 $ 3.33 $ 1.30
Weighted average Common Units outstanding - diluted (in shares) 106,652 106,305 106,036
v3.22.0.1
Consolidated Statements of Comprehensive Income - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Comprehensive income:      
Net income $ 323,310 $ 357,914 $ 141,683
Other comprehensive income/(loss):      
Unrealized losses on cash flow hedges (19) (1,238) (9,134)
Amortization of cash flow hedges 508 247 (1,250)
Total other comprehensive income/(loss) 489 (991) (10,384)
Total comprehensive income 323,799 356,923 131,299
Less-comprehensive (income) attributable to noncontrolling interests (10,033) (10,512) (4,765)
Comprehensive income attributable to common stockholders/unitholders 313,766 346,411 126,534
Highwoods Realty Limited Partnership [Member]      
Comprehensive income:      
Net income 323,310 357,914 141,683
Other comprehensive income/(loss):      
Unrealized losses on cash flow hedges (19) (1,238) (9,134)
Amortization of cash flow hedges 508 247 (1,250)
Total other comprehensive income/(loss) 489 (991) (10,384)
Total comprehensive income 323,799 356,923 131,299
Less-comprehensive (income) attributable to noncontrolling interests (1,712) (1,174) (1,214)
Comprehensive income attributable to common stockholders/unitholders $ 322,087 $ 355,749 $ 130,085
v3.22.0.1
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, 2018     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                  
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)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                        
Issuances of Common Units, net of issuance costs and tax withholdings   8,359     84 8,275     0   0  
Distributions on Common Units   (204,002)     (2,040) (201,962)     0   0  
Distributions on Preferred Units   (2,488)     (25) (2,463)     0   0  
Issuances of Common Stock - Shares     19,377                  
Issuances of Common Stock, net of issuance costs and tax withholdings 2,196   $ 0 0     2,196 0   0   0
Conversions of Common Units to Common Stock - Shares     3,570                  
Conversions of Common Units to Common Stock 145   $ 0 0     145 0   0   0
Dividends on Common Stock (199,331)   0 0     0 0   0   (199,331)
Dividends on Preferred Stock (2,488)   0 0     0 0   0   (2,488)
Adjustment of noncontrolling interests in the Operating Partnership to fair value 30,617   0 0     30,617 0   0   0
Distributions to noncontrolling interests in consolidated affiliates (1,138) (1,138) $ 0 0 0 0 0 0 0 (1,138) (1,138) 0
Issuances of restricted stock - Shares     149,304                  
Issuances of restricted stock 0   $ 0 0     0 0   0   0
Redemptions/repurchases of Preferred Stock (33)   $ 0 (33)     0 0   0   0
Share-based compensation expense, net of forfeitures - Shares     (6,751)                  
Share-based compensation expense, net of forfeitures 6,210 6,210 $ 1 0 62 6,148 6,209 0 0 0 0 0
Adjustment of Redeemable Common Units to fair value and contributions/distributions from/to the General Partner   19,932     199 19,733     0   0  
Net (income) attributable to noncontrolling interests in the Operating Partnership (9,338)   0 0     0 0   0   (9,338)
Net (income) attributable to noncontrolling interests in consolidated affiliates 0 0 0 0 (12) (1,162) 0 0 0 1,174 1,174 (1,174)
Comprehensive income:                        
Net income 357,914 357,914 0 0 3,579 354,335 0 0 0 0 0 357,914
Other comprehensive income/(loss) (991) (991) $ 0 0 0 0 0 (991) (991) 0 0 0
Total comprehensive income $ 356,923 356,923                    
Balance (in shares) at Dec. 31, 2020 103,921,546   103,921,546                  
Balance at Dec. 31, 2020 $ 2,358,170 2,329,344 $ 1,039 28,826 23,087 2,285,673 2,993,946 (1,462) (1,462) 22,046 22,046 (686,225)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                        
Issuances of Common Units, net of issuance costs and tax withholdings   21,664     217 21,447     0   0  
Distributions on Common Units   (208,896)     (2,089) (206,807)     0   0  
Distributions on Preferred Units   (2,486)     (25) (2,461)     0   0  
Issuances of Common Stock - Shares     459,477                  
Issuances of Common Stock, net of issuance costs and tax withholdings 21,664   $ 8 0     21,656 0   0   0
Conversions of Common Units to Common Stock - Shares     333,920                  
Conversions of Common Units to Common Stock 15,076   $ 0 0     15,076 0   0   0
Dividends on Common Stock (204,182)   0 0     0 0   0   (204,182)
Dividends on Preferred Stock (2,486)   0 0     0 0   0   (2,486)
Adjustment of noncontrolling interests in the Operating Partnership to fair value (11,461)   0 0     (11,461) 0   0   0
Distributions to noncontrolling interests in consolidated affiliates (1,342) (1,342) $ 0 0 0 0 0 0 0 (1,342) (1,342) 0
Issuances of restricted stock - Shares     184,584                  
Issuances of restricted stock 0   $ 0 0     0 0   0   0
Redemptions/repurchases of Preferred Stock (5)   $ 0 (5)     0 0   0   0
Share-based compensation expense, net of forfeitures - Shares     (6,747)                  
Share-based compensation expense, net of forfeitures 8,646 8,646 $ 2 0 86 8,560 8,644 0 0 0 0 0
Adjustment of Redeemable Common Units to fair value and contributions/distributions from/to the General Partner   8     0 8     0   0  
Net (income) attributable to noncontrolling interests in the Operating Partnership (8,321)   0 0     0 0   0   (8,321)
Net (income) attributable to noncontrolling interests in consolidated affiliates 0 0 0 0 (17) (1,695) 0 0 0 1,712 1,712 (1,712)
Comprehensive income:                        
Net income 323,310 323,310 0 0 3,233 320,077 0 0 0 0 0 323,310
Other comprehensive income/(loss) 489 489 $ 0 0 0 0 0 489 489 0 0 0
Total comprehensive income $ 323,799 323,799                    
Balance (in shares) at Dec. 31, 2021 104,892,780   104,892,780                  
Balance at Dec. 31, 2021 $ 2,499,558 $ 2,470,737 $ 1,049 $ 28,821 $ 24,492 $ 2,424,802 $ 3,027,861 $ (973) $ (973) $ 22,416 $ 22,416 $ (579,616)
v3.22.0.1
Consolidated Statements of Equity (Parentheticals) - $ / shares
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
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) 1.96 1.92 1.90
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) 1.96 1.92 1.90
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
v3.22.0.1
Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Operating activities:      
Net income $ 323,310 $ 357,914 $ 141,683
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization 259,255 241,585 254,504
Amortization of lease incentives and acquisition-related intangible assets and liabilities (1,903) (2,537) (505)
Share-based compensation expense 8,646 6,210 7,180
Net credit losses on operating lease receivables 425 5,458 9,861
Write-off of mortgages and notes receivable 0 0 4,087
Accrued interest on mortgages and notes receivable (103) (118) (184)
Amortization of debt issuance costs 4,451 3,092 2,970
Amortization of cash flow hedges 508 247 (1,250)
Amortization of mortgages and notes payable fair value adjustments 862 1,681 1,619
Impairments of real estate assets 0 1,778 5,849
Losses on debt extinguishment 286 3,674 640
Net gains on disposition of property (174,059) (215,897) (39,517)
Equity in earnings of unconsolidated affiliates (1,947) (4,005) (3,276)
Distributions of earnings from unconsolidated affiliates 1,417 1,533 1,149
Settlement of cash flow hedges 0 0 (11,749)
Changes in operating assets and liabilities:      
Accounts receivable 5,744 437 (3,271)
Prepaid expenses and other assets 1,575 (365) 1,610
Accrued straight-line rents receivable (22,100) (36,576) (29,828)
Accounts payable, accrued expenses and other liabilities 8,191 (5,951) 24,225
Net cash provided by operating activities 414,558 358,160 365,797
Investing activities:      
Investments in acquired real estate and related intangible assets, net of cash acquired (305,291) (2,363) (424,222)
Investments in development in-process (77,854) (160,612) (116,111)
Investments in tenant improvements and deferred leasing costs (93,654) (137,997) (138,754)
Investments in building improvements (48,405) (62,154) (53,826)
Investment in acquired controlling interest in unconsolidated affiliate (127,339) 0 0
Net proceeds from disposition of real estate assets 374,016 484,311 133,326
Distributions of capital from unconsolidated affiliates 0 72 7,833
Investments in mortgages and notes receivable (84) (32) 0
Repayments of mortgages and notes receivable 301 310 295
Investments in and advances to unconsolidated affiliates (6,079) 0 (9,977)
Changes in other investing activities (3,289) (10,853) (5,971)
Net cash provided by/(used in) investing activities (287,678) 110,682 (607,407)
Financing activities:      
Dividends on Common Stock (204,182) (199,331) (196,935)
Redemptions/repurchases of Preferred Stock (5) (33) (18)
Dividends on Preferred Stock (2,486) (2,488) (2,488)
Distributions to noncontrolling interests in the Operating Partnership (5,516) (5,456) (5,189)
Distributions to noncontrolling interests in consolidated affiliates (1,342) (1,138) (1,767)
Proceeds from the issuance of Common Stock 23,917 3,571 2,086
Costs paid for the issuance of Common Stock (535) (215) 0
Repurchase of shares related to tax withholdings (1,718) (1,160) (1,788)
Borrowings on revolving credit facility 380,000 129,000 604,600
Repayments of revolving credit facility (310,000) (350,000) (565,600)
Borrowings on mortgages and notes payable 200,000 398,364 747,990
Repayments of mortgages and notes payable (353,780) (251,952) (326,876)
Payments of debt extinguishment costs 0 (3,193) 0
Changes in debt issuance costs and other financing activities (9,279) (10,309) (7,806)
Net cash provided by/(used in) financing activities (284,926) (294,340) 246,209
Net increase/(decrease) in cash and cash equivalents and restricted cash (158,046) 174,502 4,599
Cash and cash equivalents and restricted cash at beginning of the period 189,244 14,742 10,143
Cash and cash equivalents and restricted cash at end of the period 31,198 189,244 14,742
Reconciliation of cash and cash equivalents and restricted cash:      
Cash and cash equivalents at end of the period 23,152 109,322 9,505
Restricted cash at end of the period 8,046 79,922 5,237
Supplemental disclosure of cash flow information:      
Cash paid for interest, net of amounts capitalized 79,474 72,350 72,014
Supplemental disclosure of non-cash investing and financing activities:      
Unrealized losses on cash flow hedges (19) (1,238) (9,134)
Conversions of Common Units to Common Stock 15,076 145 663
Changes in accrued capital expenditures (1) [1] (9,843) (1,913) 5,625
Write-off of fully depreciated real estate assets 68,307 46,656 85,727
Write-off of fully amortized leasing costs 43,648 25,618 45,042
Write-off of fully amortized debt issuance costs 5,200 1,438 1,791
Adjustment of noncontrolling interests in the Operating Partnership to fair value 11,461 (30,617) 29,557
Assumption of mortgages and notes payable related to acquisition activities 403,000 0 0
Issuances of Common Units to acquire real estate assets 0 6,163 0
Contingent consideration in connection with the acquisition of land 0 0 1,200
Contributions from noncontrolling interests in consolidated affiliates 0 0 4,987
Initial recognition of lease liabilities related to right of use assets 5,310 0 35,349
Future consideration in connection with the acquisition of land 16,000 0 0
Accrued capital expenditures included in accounts payable, accrued expenses and other liabilities 56,100 66,000 67,900
Highwoods Realty Limited Partnership [Member]      
Operating activities:      
Net income 323,310 357,914 141,683
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization 259,255 241,585 254,504
Amortization of lease incentives and acquisition-related intangible assets and liabilities (1,903) (2,537) (505)
Share-based compensation expense 8,646 6,210 7,180
Net credit losses on operating lease receivables 425 5,458 9,861
Write-off of mortgages and notes receivable 0 0 4,087
Accrued interest on mortgages and notes receivable (103) (118) (184)
Amortization of debt issuance costs 4,451 3,092 2,970
Amortization of cash flow hedges 508 247 (1,250)
Amortization of mortgages and notes payable fair value adjustments 862 1,681 1,619
Impairments of real estate assets 0 1,778 5,849
Losses on debt extinguishment 286 3,674 640
Net gains on disposition of property (174,059) (215,897) (39,517)
Equity in earnings of unconsolidated affiliates (1,947) (4,005) (3,276)
Distributions of earnings from unconsolidated affiliates 1,417 1,533 1,149
Settlement of cash flow hedges 0 0 (11,749)
Changes in operating assets and liabilities:      
Accounts receivable 5,744 437 (3,271)
Prepaid expenses and other assets 1,575 (365) 1,610
Accrued straight-line rents receivable (22,100) (36,576) (29,828)
Accounts payable, accrued expenses and other liabilities 8,191 (5,951) 24,225
Net cash provided by operating activities 414,558 358,160 365,797
Investing activities:      
Investments in acquired real estate and related intangible assets, net of cash acquired (305,291) (2,363) (424,222)
Investments in development in-process (77,854) (160,612) (116,111)
Investments in tenant improvements and deferred leasing costs (93,654) (137,997) (138,754)
Investments in building improvements (48,405) (62,154) (53,826)
Investment in acquired controlling interest in unconsolidated affiliate (127,339) 0 0
Net proceeds from disposition of real estate assets 374,016 484,311 133,326
Distributions of capital from unconsolidated affiliates 0 72 7,833
Investments in mortgages and notes receivable (84) (32) 0
Repayments of mortgages and notes receivable 301 310 295
Investments in and advances to unconsolidated affiliates (6,079) 0 (9,977)
Changes in other investing activities (3,289) (10,853) (5,971)
Net cash provided by/(used in) investing activities (287,678) 110,682 (607,407)
Financing activities:      
Distributions on Common Units (208,896) (204,002) (201,347)
Redemptions/repurchases of Preferred Units (5) (33) (18)
Distributions on Preferred Units (2,486) (2,488) (2,488)
Distributions to noncontrolling interests in consolidated affiliates (1,342) (1,138) (1,767)
Proceeds from the issuance of Common Units 23,917 3,571 2,086
Costs paid for the issuance of Common Units (535) (215) 0
Repurchase of units related to tax withholdings (1,718) (1,160) (1,788)
Borrowings on revolving credit facility 380,000 129,000 604,600
Repayments of revolving credit facility (310,000) (350,000) (565,600)
Borrowings on mortgages and notes payable 200,000 398,364 747,990
Repayments of mortgages and notes payable (353,780) (251,952) (326,876)
Payments of debt extinguishment costs 0 (3,193) 0
Changes in debt issuance costs and other financing activities (10,081) (11,094) (8,583)
Net cash provided by/(used in) financing activities (284,926) (294,340) 246,209
Net increase/(decrease) in cash and cash equivalents and restricted cash (158,046) 174,502 4,599
Cash and cash equivalents and restricted cash at beginning of the period 189,244 14,742 10,143
Cash and cash equivalents and restricted cash at end of the period 31,198 189,244 14,742
Reconciliation of cash and cash equivalents and restricted cash:      
Cash and cash equivalents at end of the period 23,152 109,322 9,505
Restricted cash at end of the period 8,046 79,922 5,237
Supplemental disclosure of cash flow information:      
Cash paid for interest, net of amounts capitalized 79,474 72,350 72,014
Supplemental disclosure of non-cash investing and financing activities:      
Unrealized losses on cash flow hedges (19) (1,238) (9,134)
Changes in accrued capital expenditures (1) [2] (9,843) (1,913) 5,625
Write-off of fully depreciated real estate assets 68,307 46,656 85,727
Write-off of fully amortized leasing costs 43,648 25,618 45,042
Write-off of fully amortized debt issuance costs 5,200 1,438 1,791
Assumption of mortgages and notes payable related to acquisition activities 403,000 0 0
Adjustment of Redeemable Common Units to fair value (810) (26,880) 27,256
Issuances of Common Units to acquire real estate assets 0 6,163 0
Contingent consideration in connection with the acquisition of land 0 0 1,200
Contributions from noncontrolling interests in consolidated affiliates 0 0 4,987
Initial recognition of lease liabilities related to right of use assets 5,310 0 35,349
Future consideration in connection with the acquisition of land 16,000 0 0
Accrued capital expenditures included in accounts payable, accrued expenses and other liabilities $ 56,100 $ 66,000 $ 67,900
[1] Accrued capital expenditures included in accounts payable, accrued expenses and other liabilities at December 31, 2021, 2020 and 2019 were $56.1 million, $66.0 million and $67.9 million, respectively.
[2] Accrued capital expenditures included in accounts payable, accrued expenses and other liabilities at December 31, 2021, 2020 and 2019 were $56.1 million, $66.0 million and $67.9 million, respectively.
v3.22.0.1
Description of Business and Significant Accounting Policies
12 Months Ended
Dec. 31, 2021
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, 2021, we owned or had an interest in 28.0 million rentable square feet of in-service properties, 0.6 million rentable square feet of office properties under development and development land with approximately 5.0 million rentable square feet of potential office build out.

The Company is the sole general partner of the Operating Partnership. At December 31, 2021, the Company owned all of the Preferred Units and 104.5 million, or 97.7%, of the Common Units in the Operating Partnership. Limited partners owned the remaining 2.5 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 2021, the Company redeemed 333,920 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, 2021, we had involvement with, and are the primary beneficiary in, an entity that we concluded to be a variable interest entity. As such, this entity is consolidated. Additionally, at December 31, 2021, we had involvement with, but are not the primary beneficiary in, an entity that we concluded to be a variable interest entity. As such, this entity is not consolidated. We also owned three properties through a joint venture investment at December 31, 2021 that were consolidated. (See Note 4).

All intercompany transactions and accounts have been eliminated.

Use of Estimates

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

Insurance

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, 2021, 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 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 the initial fixed terms of the respective leases, which generally are from three to 10 years. Depreciation expense for real estate assets was $218.6 million, $204.6 million and $214.7 million for the years ended December 31, 2021, 2020 and 2019, 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 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.

Assumed debt, if any, is recorded at fair value based on the present value of the expected future payments.

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

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 are 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 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 the credit quality of our customer, historical trends of the customer and changes in customer payment terms. We do not maintain a general reserve to estimate amounts that may not be collectible. 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.

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, 2021, properties that we wholly own were leased to 1,468 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 2021.

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 for 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 for 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 provides temporary optional expedients and exceptions to the guidance on contract modifications and hedge accounting to ease the financial reporting burdens related to the expected market transition from LIBOR and other interbank offered rates to alternative reference rates, such as the Secured Overnight Financing Rate (“SOFR”). Entities can elect not to apply certain modification accounting requirements to contracts affected by reference rate reform, if certain criteria are met. An entity that makes this election would not have to remeasure the contracts at the modification date or reassess a previous accounting determination. Entities can also elect various optional expedients that would allow them to continue applying hedge accounting for hedging relationships affected by reference rate reform, if certain criteria are met. The guidance in this ASU is optional and may be elected now through December 31, 2022 as reference rate reform activities occur. We will continue to evaluate the impact of this ASU; however, we currently expect to avail ourselves of such optional expedients and exceptions should our modified contracts meet the required criteria.

Due to the business disruptions and challenges severely affecting the global economy caused by the COVID-19 pandemic, lessors may provide rent deferrals and other lease concessions to lessees. In April 2020, the FASB staff issued a question and answer document (the “Lease Modification Q&A”) focused on the application of lease accounting guidance to lease concessions provided as a result of the COVID-19 pandemic. Under existing lease guidance, we would have to determine, on a lease by lease basis, if a lease concession was the result of a new arrangement reached with the tenant (treated within the lease modification accounting framework) or if a lease concession was under the enforceable rights and obligations within the existing lease agreement (precluded from applying the lease modification accounting framework). The Lease Modification Q&A allows us, if certain criteria have been met, to bypass the lease by lease analysis, and instead elect to either apply the lease modification accounting framework or not, with such election applied consistently to leases with similar characteristics and similar circumstances. We have elected the practical expedient and will not apply lease modification accounting on a lease by lease basis where applicable. As a result, $0.7 million and $3.7 million of deferred rent is included in accounts receivable on our Consolidated Balance Sheets at December 31, 2021 and 2020, respectively.
v3.22.0.1
Leases
12 Months Ended
Dec. 31, 2021
Leases [Abstract]  
Leases LeasesOn January 1, 2019, we adopted Accounting Standards Codification Topic 842 “Leases” (“ASC 842”), which supersedes Accounting Standards Codification Topic 840 “Leases” (“ASC 840”). 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

We recognized rental and other revenues related to operating lease payments of $754.9 million, $726.0 million and $723.1 million, of which variable lease payments were $57.3 million, $56.0 million and $65.4 million, during the years ended December 31, 2021, 2020 and 2019, respectively. 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, 2021 for our consolidated properties:
2022$695,896 
2023669,753 
2024619,033 
2025525,223 
2026461,045 
Thereafter1,967,017 
$4,937,967 

Information as Lessee

We have office assets encompassing 2.8 million rentable square feet subject to operating ground leases in Atlanta, Nashville, Orlando, Raleigh and Tampa with a weighted average remaining term of 51 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 $2.6 million, $2.6 million and $2.5 million of ground lease expense during the years ended December 31, 2021, 2020 and 2019, respectively, and paid $2.3 million, $2.2 million and $2.2 million in cash during 2021, 2020 and 2019, respectively.
The following table sets forth the undiscounted cash flows of our scheduled obligations for future minimum payments on operating ground leases at December 31, 2021 and a reconciliation of those cash flows to the operating lease liability at December 31, 2021:

2022$2,169 
20232,167 
20242,123 
20252,170 
20262,220 
Thereafter79,307 
90,156 
Discount(56,337)
Lease liability$33,819 

Acquired Finance Lease
During 2021, we acquired a portfolio of real estate assets from Preferred Apartment Communities, Inc. (“PAC”) (see Note 3). In conjunction with the acquisition, we assumed the ground leasehold interest to land underneath a parking garage. Under the ground lease, we have an obligation to acquire fee simple title to the land at our discretion any time, but no later than October 31, 2029. We determined this lease to be a finance lease. As such, we recognized a lease liability (in accounts payable, accrued expenses and other liabilities) and a corresponding right of use asset (in prepaid expenses and other assets) of $5.3 million on our Consolidated Balance Sheet on the date of acquisition equal to the present value of the minimum lease payments required under the ground lease. Through October 31, 2029, the expected date at which we estimate we will satisfy the obligation and acquire fee simple title to the land, we will recognize interest expense equal to the lease liability times our incremental borrowing rate, which reflects the fixed rate at which we could borrow a similar amount for the same term and with similar collateral. We determined this rate to be approximately 2.6%. We also recorded an additional $3.1 million right of use asset (in prepaid expenses and other assets) to reflect favorable terms of the ground lease when compared with market terms. No amortization will be recorded for the right of use assets because they are comprised of land.
v3.22.0.1
Real Estate Assets
12 Months Ended
Dec. 31, 2021
Real Estate [Abstract]  
Real Estate Assets Real Estate Assets
Acquisitions

During 2021, we acquired a portfolio of real estate assets from PAC. The portfolio consists of the following assets:

AssetMarketSubmarket/BBDSquare Footage
150 FayettevilleRaleighCBD560,000
CAPTRUST TowersRaleighNorth Hills300,000
Capitol TowersCharlotteSouthPark479,000
Morrocroft CentreCharlotteSouthPark291,000
Galleria 75 Redevelopment SiteAtlantaCumberland/Galleria

Our total purchase price, net of closing credits and cash acquired, was $653.6 million, including $4.5 million of capitalized acquisition costs. The acquisition included the assumption of four secured loans (see Note 6). 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.
The following table sets forth a summary of the relative fair value of the material assets acquired and liabilities assumed relating to this acquisition:

Amount Recorded at Acquisition
Real estate assets (1)
$593,039 
Acquisition-related intangible assets (in deferred financing and leasing costs) (1)
$61,126 
Right of use asset (in prepaid expenses and other assets) (1)
$8,440 
Mortgages and notes payable$(403,000)
Debt issuance costs (in mortgages and notes payable) (1)
$3,473 
Acquisition-related intangible liabilities (in accounts payable, accrued expenses and other liabilities) (1)
$(7,174)
Lease liability (in accounts payable, accrued expenses and other liabilities) (1)
$(5,310)
__________
(1)Included in purchase price.

During 2021, we also acquired various development land parcels in Nashville for an aggregate purchase price, including capitalized acquisition costs, of $74.1 million. The $16.0 million purchase price for one of the acquired parcels is expected to be paid in or prior to second quarter 2023.

During 2021, we also acquired our joint venture partner’s 75.0% interest in our Highwoods DLF Forum, LLC joint venture (the “Forum”), which owned five buildings in Raleigh encompassing 636,000 rentable square feet, for a purchase price of $131.3 million. We previously accounted for our 25.0% interest in this joint venture using the equity method of accounting. The assets and liabilities of the joint venture are now wholly owned and we have determined the acquisition constitutes an asset purchase. As such, because the Forum is not a variable interest entity, we allocated our previously held equity interest at historical cost along with the consideration paid and acquisition costs to the assets acquired and liabilities assumed. 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 2020, we acquired two development land parcels totaling less than one acre in Raleigh and Nashville for an aggregate purchase price of $8.5 million, including the issuance of 118,592 Common Units and capitalized acquisition costs.

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 land parcels totaling approximately 10 acres in Raleigh, Richmond and Pittsburgh for an aggregate purchase price, including capitalized acquisition costs, of $12.4 million.

Dispositions

During 2021, we sold a total of 13 office buildings and various land parcels in Atlanta, Memphis, Raleigh, Richmond and Tampa for an aggregate sale price of $384.6 million (before closing credits to buyer of $6.9 million) and recorded aggregate gains on disposition of property of $172.8 million.

During 2020, we sold a total of 52 buildings in Greensboro and Memphis and various land parcels for an aggregate sale price of $494.2 million (before closing credits to buyer of $5.7 million) and recorded aggregate gains on disposition of property of $215.5 million. During 2020, we also recognized $0.4 million of gain related to the satisfaction of a performance obligation as part of a 2016 land sale.

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.

Impairments

During 2020, we recorded an impairment of real estate assets of $1.8 million, which resulted from a change in market-based inputs and our assumptions about the use of the assets.
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.
v3.22.0.1
Investments In and Advances To Affiliates
12 Months Ended
Dec. 31, 2021
Equity Method Investments and Joint Ventures [Abstract]  
Investments In and Advances To Affiliates Investments in and Advances to Affiliates
Unconsolidated Affiliates

We have equity interests of up to 50.0% in various joint ventures with unrelated third parties that are accounted for using the equity method of accounting because we have the ability to exercise significant influence over the operating and financial policies of the joint venture investment. The difference between the cost of these investments and the net book value of the underlying net assets was $0.6 million at both December 31, 2021 and 2020.

The following table sets forth our ownership in unconsolidated affiliates at December 31, 2021:
Joint VentureLocationOwnership
Interest
Plaza Colonnade, Tenant-in-CommonKansas City50.0%
Brand/HRLP 2827 Peachtree LLCAtlanta50.0%
Kessinger/Hunter & Company, LCKansas City26.5%

- Brand/HRLP 2827 Peachtree LLC (“2827 Peachtree joint venture”)

During the fourth quarter of 2021, we and Brand Properties, LLC (“Brand”) formed the 2827 Peachtree joint venture to construct 2827 Peachtree, a 135,000 square foot, multi-customer office building located in Atlanta’s Buckhead submarket. 2827 Peachtree has an anticipated total investment of $79.0 million. Construction of 2827 Peachtree began in the first quarter of 2022 with a scheduled completion date in the third quarter of 2023. At closing, we agreed to contribute cash of $13.3 million ($6.1 million of which was funded as of December 31, 2021) in exchange for a 50.0% interest in the 2827 Peachtree joint venture and Brand contributed land valued at $7.7 million and agreed to contribute cash of $5.6 million in exchange for the remaining 50.0% interest. We also committed to provide a $49.6 million interest-only secured construction loan to the 2827 Peachtree joint venture that is scheduled to mature in December 2024 with an option to extend for one year. The loan bears interest at LIBOR plus 300 basis points. As of December 31, 2021, no amounts under the loan have been funded.

We determined that we have a variable interest in the 2827 Peachtree 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 equity holder and Brand as an equity holder. The 2827 Peachtree 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 Brand is not sufficient to finance its planned investments and operations. However, since we are the not the managing member or lead developer, we concluded we do not have the power to direct matters that most significantly impact the activities of the entity and therefore, do not qualify as the primary beneficiary. Accordingly, the entity was not consolidated. At December 31, 2021, our risk of loss with respect to this arrangement was limited to the carrying value of the investment balance of $6.1 million as no amounts were outstanding under the loan. The assets of the 2827 Peachtree 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 Activities

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, 2021, 2020 and 2019, we recognized $1.6 million, $1.0 million and $0.5 million, respectively, of development/construction, management and leasing fees from our unconsolidated joint ventures. At December 31, 2020, we had receivables of $0.2 million related to these fees in accounts receivable.

Consolidated Variable Interest Entities

In 2019, we and The Bromley Companies formed a joint venture (the “Midtown One joint venture”) to construct Midtown West, a 150,000 square foot, multi-customer office building located in the mixed-use Midtown Tampa project in Tampa’s Westshore submarket. Midtown West has an anticipated total investment of $71.3 million. Construction of Midtown West
began in the third quarter of 2019 and the building was placed in service in the second quarter of 2021. At closing, we agreed to contribute cash of $20.0 million, which has been fully funded, 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, 2021, $28.5 million under the loan has 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 is consolidated and all intercompany transactions and accounts are eliminated. The following table sets forth the assets and liabilities of the Midtown One joint venture included on our Consolidated Balance Sheets:

December 31,
20212020
Net real estate assets$53,191 $— 
Development in-process$— $46,873 
Cash and cash equivalents $389 $— 
Accrued straight-line rents receivable $121 $— 
Deferred leasing costs, net$1,519 $196 
Prepaid expenses and other assets$163 $75 
Accounts payable, accrued expenses and other liabilities$646 $2,693 

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 $31.1 million had the entity been liquidated at December 31, 2021. 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. The assets of Markel can be used only to settle obligations of the joint venture and its creditors have no recourse to our wholly owned assets.
During 2021, Markel sold land in Richmond for a sale price of $3.0 million and recorded gain on disposition of property of $1.3 million.
v3.22.0.1
Intangible Assets and Below Market Leaes Liabilities
12 Months Ended
Dec. 31, 2021
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,
20212020
Assets:
Deferred leasing costs (including lease incentives and above market lease and in-place lease acquisition-related intangible assets)
$402,013 $361,027 
Less accumulated amortization(143,111)(151,698)
$258,902 $209,329 
Liabilities (in accounts payable, accrued expenses and other liabilities):
Acquisition-related below market lease liabilities$57,703 $63,748 
Less accumulated amortization(28,978)(37,838)
$28,725 $25,910 

The following table sets forth amortization of intangible assets and below market lease liabilities:

Year Ended December 31,
202120202019
Amortization of deferred leasing costs and acquisition-related intangible assets (in depreciation and amortization)
$38,173 $34,401 $37,386 
Amortization of lease incentives (in rental and other revenues)$1,885 $1,847 $4,281 
Amortization of acquisition-related intangible assets (in rental and other revenues)
$1,932 $1,137 $1,290 
Amortization of acquisition-related intangible assets (in rental property and other expenses)
$— $510 $557 
Amortization of acquisition-related below market lease liabilities (in rental and other revenues)
$(5,720)$(6,031)$(6,633)

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 Below Market Lease Liabilities (in Rental and Other Revenues)
2022$41,823 $1,534 $2,986 $(5,294)
202336,891 1,428 2,829 (4,824)
202432,716 1,284 2,573 (4,111)
202525,856 1,209 1,667 (2,594)
202621,992 1,084 1,336 (2,294)
Thereafter73,343 3,557 4,794 (9,608)
$232,621 $10,096 $16,185 $(28,725)
Weighted average remaining amortization periods as of December 31, 2021 (in years)8.28.57.68.3
The following table sets forth the intangible assets acquired and below market lease liabilities assumed as a result of the acquisition of real estate assets from PAC and our joint venture partner's 75.0% interest in the Forum:

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$13,824 $84,298 $(8,535)
Weighted average remaining amortization periods as of December 31, 2021 (in years)7.17.18.1
v3.22.0.1
Mortgages and Notes Payable
12 Months Ended
Dec. 31, 2021
Debt Disclosure [Abstract]  
Mortgages and Notes Payable Mortgages and Notes Payable
Our mortgages and notes payable consisted of the following:
December 31,
20212020
Secured indebtedness (1):
4.27% (3.61% effective rate) mortgage loan due 2028 (2)
$115,731 $— 
4.00% mortgage loan due 202991,318 93,350 
3.61% (3.19% effective rate) mortgage loan due 2029 (3)
84,973 — 
3.40% (3.50% effective rate) mortgage loan due 2033 (4)
69,422 — 
4.60% (3.73% effective rate) mortgage loan due 2037 (5)
130,498 — 
491,942 93,350 
Unsecured indebtedness:
3.20% (3.363% effective rate) notes due 2021 (6)
— 149,901 
3.625% (3.752% effective rate) notes due 2023 (7)
249,726 249,464 
3.875% (4.038% effective rate) notes due 2027 (8)
297,934 297,534 
4.125% (4.271% effective rate) notes due 2028 (9)
347,449 347,035 
4.20% (4.234% effective rate) notes due 2029 (10)
349,288 349,189 
3.050% (3.079% effective rate) notes due 2030 (11)
399,204 399,106 
2.600% (2.645% effective rate) notes due 2031 (12)
398,579 398,423 
Variable rate term loan due 2022 (13)
200,000 200,000 
Revolving credit facility due 2025 (14)
70,000 — 
2,312,180 2,390,652 
Less-unamortized debt issuance costs(15,207)(13,981)
Total mortgages and notes payable, net$2,788,915 $2,470,021 
__________
(1)Our secured mortgage loans were collateralized by real estate assets with an undepreciated book value of $727.8 million at December 31, 2021. We paid down $3.8 million of secured loan balances through principal amortization during 2021.
(2)Net of unamortized fair market value premium of $3.9 million as of December 31, 2021.
(3)Net of unamortized fair market value premium of $2.3 million as of December 31, 2021.
(4)Net of unamortized fair market value discount of $0.6 million as of December 31, 2021.
(5)Net of unamortized fair market value premium of $10.0 million as of December 31, 2021.
(6)Net of unamortized original issuance discount of $0.1 million as of December 31, 2020. This debt was repaid in 2021.
(7)Net of unamortized original issuance discount of $0.3 million and $0.5 million as of December 31, 2021 and 2020, respectively.
(8)Net of unamortized original issuance discount of $2.1 million and $2.5 million as of December 31, 2021 and 2020, respectively.
(9)Net of unamortized original issuance discount of $2.6 million and $3.0 million as of December 31, 2021 and 2020, respectively.
(10)Net of unamortized original issuance discount of $0.7 million and $0.8 million as of December 31, 2021 and 2020, respectively.
(11)Net of unamortized original issuance discount of $0.8 million and $0.9 million as of December 31, 2021 and 2020, respectively.
(12)Net of unamortized original issuance discount of $1.4 million and $1.6 million as of December 31, 2021 and 2020, respectively.
(13)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 $150.0 million was 1.20% at December 31, 2021.
(14)The interest rate was 1.00% at December 31, 2021.

The following table sets forth scheduled future principal payments, including amortization, due on our mortgages and notes payable at December 31, 2021:
Years Ending December 31,Amount
2022$206,524 
2023257,059 
20247,365 
202577,176 
20266,911 
Thereafter2,249,087 
Less-unamortized debt issuance costs(15,207)
$2,788,915 

During 2021, we entered into a new $750.0 million unsecured revolving credit facility, which replaced our previously existing $600.0 million revolving credit facility and includes an accordion feature that allows for an additional $550.0 million of borrowing capacity subject to additional lender commitments. Our new revolving credit facility is scheduled to mature in March 2025. Assuming no defaults have occurred, we have an option to extend the maturity for two additional six-month periods. The current interest rate on the new facility at our existing credit ratings is LIBOR plus 90 basis points and the annual facility fee is 20 basis points. The interest rate and facility fee are based on the higher of the publicly announced ratings from Moody’s Investors Service or Standard & Poor’s Ratings Services. The financial and other covenants under the new facility are substantially similar to our previous credit facility. We incurred $4.8 million of debt issuance costs, which are being 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 $70.0 million outstanding under our new revolving credit facility at both December 31, 2021 and January 28, 2022. At both December 31, 2021 and January 28, 2022, 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 both December 31, 2021 and January 28, 2022 was $679.9 million.

During 2021, in conjunction with the acquisition of real estate assets from PAC, we assumed four secured mortgage loans recorded at fair value of $403 million in the aggregate, with a weighted average effective interest rate of 3.54% and a weighted average maturity of 10.7 years. We incurred $3.5 million of debt issuance costs related to these assumptions, which will be amortized over the remaining terms of the loans.

During the third quarter of 2021, we also obtained a $200.0 million, six-month unsecured bridge facility. The bridge facility was originally scheduled to mature in January 2022. The bridge facility bore interest at LIBOR plus 85 basis points, had a commitment fee of 20 basis points and contained financial and other covenants that are similar to the covenants under our $750 million unsecured revolving credit facility. We incurred $1.0 million of debt issuance costs related to this bridge facility which were being amortized over the six-month term. As of December 31, 2021, this bridge facility was prepaid in full without penalty. We recorded $0.2 million of loss on debt extinguishment related to this prepayment.

During 2021, we prepaid without penalty the remaining $150.0 million principal amount of 3.20% unsecured notes that was scheduled to mature in June 2021. We recorded $0.1 million of loss on debt extinguishment related to this prepayment.

During 2020, the Operating Partnership issued $400.0 million aggregate principal amount of 2.600% notes due February 2031, less original issuance discount of $1.6 million. These notes were priced to yield 2.645%. 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. The net proceeds from the issuance were used: (1) to finance the Operating Partnership’s cash tender offer to purchase $150.0 million principal amount of its 3.20% notes due June 15, 2021 at a purchase price of 101.908% of the face amount of the notes, plus accrued and unpaid interest; (2) to prepay without penalty our $100.0 million unsecured bank term loan that was scheduled to mature in January 2022 and which bore interest at LIBOR plus 110 basis points; and (3) for general corporate
purposes. We recorded $3.7 million of aggregate losses on debt extinguishment related to the repurchase of the 3.20% notes and the term loan prepayment.

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 2019, we prepaid without penalty the remaining $225.0 million on our seven-year unsecured bank term loan, which was scheduled to mature in June 2020. The term loan bore interest at LIBOR plus 110 basis points. We recorded $0.4 million of loss on debt extinguishment related to this prepayment.

During 2019, we prepaid without penalty $100.0 million on our $200.0 million unsecured bank term loan and recorded $0.3 million of loss on debt extinguishment related to this prepayment. During 2020, we prepaid without penalty the remaining $100.0 million upon issuance of the $400.0 million aggregate principal amount of 2.600% notes due February 2031. The term loan was scheduled to mature in January 2022 and bore interest at LIBOR plus 110 basis points.

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

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 $35.0 million with respect to other loans in some circumstances.

The Operating Partnership has $249.7 million carrying amount of 2023 notes outstanding, $297.9 million carrying amount of 2027 notes outstanding, $347.4 million carrying amount of 2028 notes outstanding, $349.3 million carrying amount of 2029 notes outstanding, $399.2 million carrying amount of 2030 notes outstanding and $398.6 million carrying amount of 2031 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 within one year from February 8, 2022 (the date of issuance of the annual financial statements) and the adequacy of our estimated cash flows from operating activities and other available financing sources to meet these needs. In particular, we have considered our scheduled debt maturities during such one-year period, including the $200.0 million unsecured bank term loan that is scheduled to mature in November 2022 and the $250.0 million principal amount of unsecured notes that are scheduled to mature in January 2023. We have concluded it is probable we will 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 $9.6 million, $8.3 million and $5.6 million for the years ended December 31, 2021, 2020 and 2019, respectively.
v3.22.0.1
Derivative Financial Instruments
12 Months Ended
Dec. 31, 2021
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.

We previously 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%. As of January 28, 2022, these interest rate swaps have expired.

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 2022, we estimate that $0.2 million will be reclassified as a net decrease to interest expense.

The following table sets forth the fair value of our derivatives:
December 31,
20212020
Derivatives:
Derivatives designated as cash flow hedges in accounts payable, accrued expenses and other liabilities:
Interest rate swaps$60 $846 
The following table sets forth the effect of our cash flow hedges on accumulated other comprehensive income/(loss) and interest expense:
Year Ended December 31,
202120202019
Derivatives Designated as Cash Flow Hedges:
Amount of unrealized losses recognized in accumulated other comprehensive income/(loss) on derivatives:
Interest rate swaps$(19)$(1,238)$(9,134)
Amount of (gains)/losses reclassified out of accumulated other comprehensive income/(loss) into interest expense:
Interest rate swaps$508 $247 $(1,250)
v3.22.0.1
Commitments and Contingencies
12 Months Ended
Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]  
Commitments and Contingencies Commitments and Contingencies
Lease and Contractual Commitments

We have $241.9 million of lease and contractual commitments at December 31, 2021. 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 $55.5 million was recorded on our Consolidated Balance Sheets at December 31, 2021.

Contingent Consideration

We had $0.8 million of contingent consideration related to a parcel of acquired development land at both December 31, 2021 and 2020. The contingent consideration 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 in 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.

COVID-19

Since early March 2020, the COVID-19 pandemic had a significant impact on the U.S. economy. We continue to follow the policies described in Note 1, including those related to impairments of real estate assets and investments in unconsolidated affiliates, leases and estimates of credit losses on operating lease receivables. While the results of our current analyses did not result in any material adjustments to amounts as of and for the years ended December 31, 2021 and 2020, respectively, circumstances related to the COVID-19 pandemic may result in recording impairments, lease modifications and credit losses in future periods.
v3.22.0.1
Noncontrolling Interests
12 Months Ended
Dec. 31, 2021
Noncontrolling Interest [Abstract]  
Noncontrolling Interests Noncontrolling Interests
Noncontrolling Interests in Consolidated Affiliates

At December 31, 2021, 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 the Midtown One joint venture. See Note 4. 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,
20212020
Beginning noncontrolling interests in the Operating Partnership$112,499 $133,216 
Adjustment of noncontrolling interests in the Operating Partnership to fair value11,461 (30,617)
Issuances of Common Units— 6,163 
Conversions of Common Units to Common Stock(15,076)(145)
Net income attributable to noncontrolling interests in the Operating Partnership8,321 9,338 
Distributions to noncontrolling interests in the Operating Partnership(5,516)(5,456)
Total noncontrolling interests in the Operating Partnership$111,689 $112,499 

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,
202120202019
Net income available for common stockholders$310,791 $344,914 $134,430 
Increase in additional paid in capital from conversions of Common Units to Common Stock
15,076 145 663 
Issuances of Common Units
— (6,163)— 
Change from net income available for common stockholders and transfers from noncontrolling interests$325,867 $338,896 $135,093 
v3.22.0.1
Disclosure About Fair Value of Financial Instruments
12 Months Ended
Dec. 31, 2021
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. Our Level 2 liabilities include the fair value of our mortgages and notes payable and 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 1Level 2
TotalQuoted Prices
in Active
Markets for Identical Assets or Liabilities
Significant Observable Inputs
Fair Value at December 31, 2021:
Assets:
Mortgages and notes receivable, at fair value (1)
$1,227 $— $1,227 
Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets)
2,866 2,866 — 
Total Assets$4,093 $2,866 $1,227 
Noncontrolling Interests in the Operating Partnership$111,689 $111,689 $— 
Liabilities:
Mortgages and notes payable, net, at fair value (1)
$2,907,492 $— $2,907,492 
Interest rate swaps (in accounts payable, accrued expenses and other liabilities)
60 — 60 
Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities)
2,866 2,866 — 
Total Liabilities$2,910,418 $2,866 $2,907,552 
Fair Value at December 31, 2020:
Assets:
Mortgages and notes receivable, at fair value (1)
$1,341 $— $1,341 
Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets)
2,573 2,573 — 
Total Assets$3,914 $2,573 $1,341 
Noncontrolling Interests in the Operating Partnership$112,499 $112,499 $— 
Liabilities:
Mortgages and notes payable, net, at fair value (1)
$2,639,163 $— $2,639,163 
Interest rate swaps (in accounts payable, accrued expenses and other liabilities)
846 — 846 
Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities)
2,573 2,573 — 
Total Liabilities$2,642,582 $2,573 $2,640,009 
__________
(1)    Amounts are not recorded at fair value on our Consolidated Balance Sheets at December 31, 2021 and 2020.

The Level 3 impaired real estate assets measured at a fair value of $2.1 million in the second quarter of 2020 included a non-core office building. The impairment resulted from a change in our assumptions about the use of the assets and was calculated using brokers’ opinions of value, letters of intent and comparable sales as observable inputs were not available.
v3.22.0.1
Equity
12 Months Ended
Dec. 31, 2021
Equity [Abstract]  
Equity Equity
Common Stock Issuances

During 2020, we entered into separate equity distribution agreements in which the Company may offer and sell up to $300.0 million in aggregate gross sales price of shares of Common Stock. During 2021, the Company issued 456,273 shares of Common Stock under its equity distribution agreements at an average gross sales price of $46.23 per share and received net proceeds, after sales commissions, of $20.8 million. At December 31, 2021, the Company had 95.1 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 $1.96, $1.92 and $1.90 for the years ended December 31, 2021, 2020 and 2019, 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,
202120202019
Ordinary dividend$1.87 $1.65 $1.64 
Capital gains0.09 0.25 0.13 
Return of capital— 0.02 0.13 
Total$1.96 $1.92 $1.90 

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 outstanding Preferred Stock:

Issue DateNumber of Shares OutstandingCarrying ValueLiquidation Preference Per ShareOptional Redemption DateAnnual Dividends Payable Per Share
(in thousands)
December 31, 2021
8.625% Series A Cumulative Redeemable2/12/199729 $28,821 $1,000 2/12/2027$86.25 
December 31, 2020
8.625% Series A Cumulative Redeemable2/12/199729 $28,826 $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,
202120202019
8.625% Series A Cumulative Redeemable:
Ordinary dividend$82.38 $74.96 $79.90 
Capital gains3.87 11.29 6.35 
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 both December 31, 2021 and 2020, 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 $1.96, $1.92 and $1.90 for the years ended December 31, 2021, 2020 and 2019, 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 outstanding Preferred Units:
Issue DateNumber of
Units
Outstanding
Carrying
Value
Liquidation Preference
Per Unit
Optional Redemption
Date
Annual
Distributions
Payable
Per Unit
(in thousands)
December 31, 2021
8.625% Series A Cumulative Redeemable2/12/199729 $28,821 $1,000 2/12/2027$86.25 
December 31, 2020
8.625% Series A Cumulative Redeemable2/12/199729 $28,826 $1,000 2/12/2027$86.25 
v3.22.0.1
Employee Benefit Plans
12 Months Ended
Dec. 31, 2021
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 generally 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 25% to 130% 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%. 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 5% to 30% of annual base salary. 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,
20212020
Outstanding stock options and warrants527,067 552,373 
Possible future issuance under equity incentive plans2,999,100 1,926,324 
3,526,167 2,478,697 

Of the possible future issuance under the Company’s long-term equity incentive plans at December 31, 2021, no more than an additional 1.0 million shares can be in the form of restricted stock.

During the years ended December 31, 2021, 2020 and 2019, we recognized $8.6 million, $6.2 million and $7.2 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, 2021, there was $3.4 million of total unrecognized share-based compensation costs, which will be recognized over a weighted average remaining contractual term of 1.9 years.

- Stock Options

Stock options issued from 2014 through 2017 vest ratably on an annual basis over four years and expire after 10 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 following table sets forth stock option activity:
Options Outstanding
Number of OptionsWeighted Average Exercise Price
Stock options outstanding at December 31, 2018596,518 $45.67 
Exercised(9,026)39.53 
Forfeited(2,590)48.79 
Stock options outstanding at December 31, 2019584,902 45.75 
Exercised(42,163)41.10 
Forfeited(5,366)50.82 
Stock options outstanding at December 31, 2020537,373 46.07 
Exercised(25,306)43.76 
Stock options outstanding at December 31, 2021 (1)
512,067 $46.18 
__________
(1)The Company had 512,067 options exercisable at December 31, 2021 with a weighted average exercise price of $46.18, weighted average remaining life of 4.0 years and intrinsic value of $0.6 million. Of these exercisable options, 279,549 had exercise prices higher than the market price of our Common Stock at December 31, 2021.

Cash received or receivable from options exercised was $1.1 million, $1.9 million and $0.4 million for the years ended December 31, 2021, 2020 and 2019, respectively. The total intrinsic value of options exercised during the years ended December 31, 2021, 2020 and 2019 was $0.1 million, $0.4 million and $0.1 million, respectively. The total intrinsic value of options outstanding at December 31, 2021, 2020 and 2019 was $0.6 million, $0.1 million and $2.4 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 SharesWeighted Average Grant Date Fair Value
Restricted shares outstanding at December 31, 2018191,239 $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, 2019218,151 45.73 
Awarded and issued (1)
83,116 44.88 
Vested (2)
(88,326)45.86 
Forfeited(3,751)45.78 
Restricted shares outstanding at December 31, 2020209,190 45.34 
Awarded and issued (1)
103,120 39.99 
Vested (2)
(89,264)45.90 
Forfeited(3,327)43.13 
Restricted shares outstanding at December 31, 2021219,719 $42.63 
__________
(1)The weighted average fair value at grant date of time-based restricted stock issued during the years ended December 31, 2021, 2020 and 2019 was $4.1 million, $3.7 million and $4.8 million, respectively.
(2)The vesting date fair value of time-based restricted stock that vested during the years ended December 31, 2021, 2020 and 2019 was $3.6 million, $3.9 million and $3.3 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%. For total return-based restricted stock issued prior to 2020, 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. This amount was increased from 75% to 100% for total return-based restricted stock issued in 2021 and 2020. The weighted average grant date fair value of such shares of total return-based restricted stock issued in 2021, 2020 and 2019 was determined to be $36.41, $38.31 and $39.42, 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:
202120202019
Risk free interest rate (1) 
0.3 %0.9 %2.4 %
Common stock dividend yield (2) 
4.8 %3.9 %4.4 %
Expected volatility (3) 
26.8 %20.4 %27.3 %
__________
(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 SharesWeighted Average Grant Date Fair Value
Restricted shares outstanding at December 31, 2018180,094 $43.34 
Awarded and issued (1)
87,344 39.42 
Vested (2)
(45,901)43.68 
Forfeited (3)
(12,689)43.58 
Restricted shares outstanding at December 31, 2019208,848 42.22 
Awarded and issued (1)
66,188 38.31 
Forfeited (3)
(49,852)51.93 
Restricted shares outstanding at December 31, 2020225,184 39.53 
Awarded and issued (1)
81,464 36.41 
Vested (2)
(55,452)43.01 
Forfeited (3)
(21,904)42.33 
Restricted shares outstanding at December 31, 2021229,292 $38.00 
__________
(1)The fair value at grant date of total return-based restricted stock issued during the years ended December 31, 2021, 2020 and 2019 was $2.9 million, $2.5 million and $3.4 million, respectively, at target.
(2)The vesting date fair value of total return-based restricted stock that vested during the years ended December 31, 2021 and 2019 was $2.2 million and $2.1 million, respectively, based on the performance of the specific plans. Vested shares include those shares surrendered by employees to satisfy tax withholding obligations in connection with such vesting. There were no vested shares of total return-based restricted stock during the year ended December 31, 2020.
(3)The 2021, 2020 and 2019 amounts include 18,484, 46,852 and 9,521 shares, respectively, that were forfeited at the end of the applicable measurement period because the applicable total return did not meet targeted levels.

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, 2021, 2020 and 2019, we contributed $1.3 million, $1.4 million and $1.5 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 $2.9 million and $2.6 million at December 31, 2021 and 2020, 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,
202120202019
Beginning deferred compensation liability$2,573 $2,345 $1,849 
Mark-to-market adjustment to deferred compensation (in general and administrative expenses)
293 228 496 
Total deferred compensation liability$2,866 $2,573 $2,345 

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, 2021, 2020 and 2019, the Company issued 38,460, 47,208 and 38,618 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 $0.2 million, $0.3 million and $0.3 million in the years ended December 31, 2021, 2020 and 2019, respectively. Generally, shares purchased under the ESPP must be held at least one year. The Company satisfies its ESPP obligations by issuing additional shares of Common Stock.
v3.22.0.1
Accumulated Other Comprehensive Income/(Loss)
12 Months Ended
Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Accumulated Other Comprehensive Income/(Loss) Accumulated Other Comprehensive Income/(Loss)
The following table sets forth the components of accumulated other comprehensive income/(loss):
December 31,
20212020
Cash flow hedges:
Beginning balance$(1,462)$(471)
Unrealized losses on cash flow hedges(19)(1,238)
Amortization of cash flow hedges (1)
508 247 
Total accumulated other comprehensive loss$(973)$(1,462)
__________
(1)    Amounts reclassified out of accumulated other comprehensive income/(loss) into interest expense.
v3.22.0.1
Real Estate and Other Assets Held For Sale
12 Months Ended
Dec. 31, 2021
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, 2021 and 2020, which are considered non-core:

December 31,
20212020
Assets:
Land$— $2,612 
Buildings and tenant improvements— 12,238 
Land held for development3,482 — 
Less-accumulated depreciation— (3,577)
Net real estate assets3,482 11,273 
Deferred leasing costs, net— 87 
Prepaid expenses and other assets36 — 
Real estate and other assets, net, held for sale$3,518 $11,360 
v3.22.0.1
Earnings Per Share and Per Unit
12 Months Ended
Dec. 31, 2021
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,
202120202019
Earnings per Common Share - basic:
Numerator:
Net income$323,310 $357,914 $141,683 
Net (income) attributable to noncontrolling interests in the Operating Partnership(8,321)(9,338)(3,551)
Net (income) attributable to noncontrolling interests in consolidated affiliates(1,712)(1,174)(1,214)
Dividends on Preferred Stock(2,486)(2,488)(2,488)
Net income available for common stockholders$310,791 $344,914 $134,430 
Denominator:
Denominator for basic earnings per Common Share – weighted average shares (1)
104,232 103,876 103,692 
Net income available for common stockholders$2.98 $3.32 $1.30 
Earnings per Common Share - diluted:
Numerator:
Net income$323,310 $357,914 $141,683 
Net (income) attributable to noncontrolling interests in consolidated affiliates(1,712)(1,174)(1,214)
Dividends on Preferred Stock(2,486)(2,488)(2,488)
Net income available for common stockholders before net (income) attributable to noncontrolling interests in the Operating Partnership$319,112 $354,252 $137,981 
Denominator:
Denominator for basic earnings per Common Share – weighted average shares (1)
104,232 103,876 103,692 
Add:
Stock options using the treasury method18 22 
Noncontrolling interests Common Units2,811 2,830 2,731 
Denominator for diluted earnings per Common Share – adjusted weighted average shares and assumed conversions107,061 106,714 106,445 
Net income available for common stockholders$2.98 $3.32 $1.30 
__________
(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,
202120202019
Earnings per Common Unit - basic:
Numerator:
Net income$323,310 $357,914 $141,683 
Net (income) attributable to noncontrolling interests in consolidated affiliates(1,712)(1,174)(1,214)
Distributions on Preferred Units(2,486)(2,488)(2,488)
Net income available for common unitholders$319,112 $354,252 $137,981 
Denominator:
Denominator for basic earnings per Common Unit – weighted average units (1)
106,634 106,297 106,014 
Net income available for common unitholders$2.99 $3.33 $1.30 
Earnings per Common Unit - diluted:
Numerator:
Net income$323,310 $357,914 $141,683 
Net (income) attributable to noncontrolling interests in consolidated affiliates(1,712)(1,174)(1,214)
Distributions on Preferred Units(2,486)(2,488)(2,488)
Net income available for common unitholders$319,112 $354,252 $137,981 
Denominator:
Denominator for basic earnings per Common Unit – weighted average units (1)
106,634 106,297 106,014 
Add:
Stock options using the treasury method18 22 
Denominator for diluted earnings per Common Unit – adjusted weighted average units and assumed conversions106,652 106,305 106,036 
Net income available for common unitholders$2.99 $3.33 $1.30 
__________
(1)Includes all unvested restricted stock where distributions on such restricted stock are non-forfeitable.
v3.22.0.1
Income Taxes
12 Months Ended
Dec. 31, 2021
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 $1.61, $1.41 and $1.44 per share in 2021, 2020 and 2019, 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 $5.2 billion and $3.2 billion, respectively, at December 31, 2021 and $4.7 billion and $2.8 billion, respectively, at December 31, 2020. The tax basis of the Operating Partnership’s assets (net of accumulated tax depreciation and amortization) and liabilities was approximately $5.0 billion and $3.2 billion, respectively, at December 31, 2021 and $4.6 billion and $2.8 billion, respectively, at December 31, 2020.

During the years ended December 31, 2021, 2020 and 2019, 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.

The following table sets forth the Company’s income tax expense:

Year Ended December 31,
202120202019
Current tax expense:
Federal$40 $110 $202 
State79 240 148 
119 350 350 
Deferred tax expense/(benefit):
Federal(39)(9)14 
State58 (4)(120)
19 (13)(106)
Total income tax expense$138 $337 $244 

The Company’s net deferred tax liability was $0.1 million at both December 31, 2021 and 2020. 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, 2021 and 2020, there were no unrecognized tax benefits. The Company is subject to federal, state and local income tax examinations by taxing authorities for 2018 through 2021. The Company does not expect that the total amount of unrecognized benefits will materially change within the next year.
v3.22.0.1
Segment Information
12 Months Ended
Dec. 31, 2021
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. Our segment information as of and for the year ended December 31, 2019 has been retrospectively revised from previously reported amounts to reflect a change in our reportable segments as a result of recent dispositions.
Year Ended December 31,
202120202019
Rental and Other Revenues:
Office:
Atlanta$143,612 $146,704 $151,279 
Charlotte49,347 35,733 4,650 
Nashville149,674 138,089 133,867 
Orlando51,281 49,459 52,679 
Pittsburgh57,371 58,518 60,755 
Raleigh162,115 128,189 122,173 
Richmond45,941 48,079 49,428 
Tampa97,954 99,520 86,431 
Total Office Segment757,295 704,291 661,262 
Other10,712 32,609 74,717 
Total Rental and Other Revenues$768,007 $736,900 $735,979 
Net Operating Income:
Office:
Atlanta$94,122 $95,448 $97,019 
Charlotte38,464 28,431 3,791 
Nashville110,039 99,901 97,386 
Orlando31,301 29,546 32,062 
Pittsburgh34,248 35,631 36,249 
Raleigh121,005 95,926 88,402 
Richmond31,726 33,667 33,756 
Tampa64,396 67,059 50,339 
Total Office Segment525,301 485,609 439,004 
Other 6,270 19,466 48,464 
Total Net Operating Income531,571 505,075 487,468 
Reconciliation to net income:
Depreciation and amortization(259,255)(241,585)(254,504)
Impairments of real estate assets— (1,778)(5,849)
General and administrative expenses(40,553)(41,031)(44,067)
Interest expense(85,853)(80,962)(81,648)
Other income/(loss)1,394 (1,707)(2,510)
Gains on disposition of property174,059 215,897 39,517 
Equity in earnings of unconsolidated affiliates1,947 4,005 3,276 
Net income$323,310 $357,914 $141,683 
December 31,
20212020
Total Assets:
Office:
Atlanta$947,877 $1,011,807 
Charlotte771,121 443,051 
Nashville1,294,178 1,191,219 
Orlando285,781 289,129 
Pittsburgh310,296 313,783 
Raleigh1,269,200 839,831 
Richmond202,488 240,976 
Tampa514,303 556,951 
Total Office Segment5,595,244 4,886,747 
Other99,894 322,670 
Total Assets$5,695,138 $5,209,417 
v3.22.0.1
Subsequent Events
12 Months Ended
Dec. 31, 2021
Subsequent Events [Abstract]  
Subsequent Events Subsequent EventsOn February 1, 2022, the Company declared a cash dividend of $0.50 per share of Common Stock, which is payable on March 15, 2022 to stockholders of record as of February 21, 2022.
v3.22.0.1
Schedule III
12 Months Ended
Dec. 31, 2021
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,
202120202019
Real estate assets:
Beginning balance$5,594,833 $5,776,804 $5,296,551 
Acquisitions, development and improvements1,248,256 259,470 677,842 
Cost of real estate sold and retired(356,953)(441,441)(197,589)
Ending balance (a)$6,486,136 $5,594,833 $5,776,804 
Accumulated depreciation:
Beginning balance$1,421,956 $1,405,341 $1,296,562 
Depreciation expense218,628 204,585 214,682 
Real estate sold and retired(183,073)(187,970)(105,903)
Ending balance (b)$1,457,511 $1,421,956 $1,405,341 

(a)Reconciliation of total real estate assets to balance sheet caption:
202120202019
Total per Schedule III$6,486,136 $5,594,833 $5,776,804 
Development in-process exclusive of land included in Schedule III6,890 259,681 172,706 
Real estate assets, net, held for sale(3,482)(14,850)(34,396)
Total real estate assets$6,489,544 $5,839,664 $5,915,114 

(b)Reconciliation of total accumulated depreciation to balance sheet caption:
202120202019
Total per Schedule III$1,457,511 $1,421,956 $1,405,341 
Real estate assets, net, held for sale— (3,577)(16,775)
Total accumulated depreciation$1,457,511 $1,418,379 $1,388,566 
Real Estate and Accumulated Depreciation Disclosure
(in thousands)

December 31, 2021

Initial CostsCosts Capitalized
Subsequent to
Acquisition
Gross Value at Close of PeriodLife on
Which
Depreciation
is
Calculated
DescriptionProperty
Type
2021
Encumbrance
LandBldg &
Improv
LandBldg &
Improv
LandBldg &
Improv
Total
Assets (1)
Accumulated
Depreciation
Date of
Construction
Atlanta, GA
1700 Century CircleOffice$— $2,482 $$1,431 $$3,913 $3,915 $2,110 1983 5-40 yrs.
1800 Century BoulevardOffice1,444 29,081 — 6,935 1,444 36,016 37,460 20,861 1975 5-40 yrs.
1825 Century BoulevardOffice864 — 303 15,181 1,167 15,181 16,348 7,207 2002 5-40 yrs.
1875 Century BoulevardOffice— 8,924 — 8,820 — 17,744 17,744 9,491 1976 5-40 yrs.
1900 Century BoulevardOffice— 4,744 — 340 — 5,084 5,084 5,084 1971 5-40 yrs.
2200 Century ParkwayOffice— 14,432 — 9,012 — 23,444 23,444 12,327 1971 5-40 yrs.
2400 Century ParkwayOffice— — 406 14,785 406 14,785 15,191 8,262 1998 5-40 yrs.
2500 Century ParkwayOffice— — 328 12,824 328 12,824 13,152 5,035 2005 5-40 yrs.
2500/2635 Parking GarageOffice— — — 6,447 — 6,447 6,447 2,594 2005 5-40 yrs.
2600 Century ParkwayOffice— 10,679 — 5,694 — 16,373 16,373 8,514 1973 5-40 yrs.
2635 Century ParkwayOffice— 21,643 — 20,711 — 42,354 42,354 20,219 1980 5-40 yrs.
2800 Century ParkwayOffice— 20,449 — 11,852 — 32,301 32,301 19,130 1983 5-40 yrs.
Century Plaza IOffice1,290 8,567 — 4,746 1,290 13,313 14,603 7,206 1981 5-40 yrs.
Century Plaza IIOffice1,380 7,733 — 4,119 1,380 11,852 13,232 5,904 1984 5-40 yrs.
Riverpoint - LandIndustrial7,250 — (4,649)718 2,601 718 3,319 203 N/A 5-40 yrs.
Riverwood 100Office5,785 64,913 (29)25,295 5,756 90,208 95,964 26,300 19895-40 yrs.
Tradeport - LandIndustrial5,243 — (4,733)— 510 — 510 — N/A N/A
Two Alliance CenterOffice9,579 125,549 — 555 9,579 126,104 135,683 34,023 20095-40 yrs.
One Alliance CenterOffice14,775 123,071 — 21,171 14,775 144,242 159,017 35,121 20015-40 yrs.
10 Glenlake NorthOffice5,349 26,334 — 7,754 5,349 34,088 39,437 8,341 20005-40 yrs.
10 Glenlake SouthOffice5,103 22,811 — 5,234 5,103 28,045 33,148 8,177 19995-40 yrs.
Riverwood 200Office4,777 89,708 450 2,995 5,227 92,703 97,930 14,342 20175-40 yrs.
Riverwood 300 - LandOffice400 — — 710 400 710 1,110 87 N/A5-40 yrs.
Monarch TowerOffice22,717 143,068 — 19,398 22,717 162,466 185,183 30,985 19975-40 yrs.
Monarch PlazaOffice27,678 88,962 — 12,410 27,678 101,372 129,050 19,148 19835-40 yrs.
Galleria 75 - LandOffice— — 19,740 — 19,740 — 19,740 — N/AN/A
Charlotte, NC
Bank of America TowerOffice29,273 354,749 — 21,466 29,273 376,215 405,488 23,734 2019 5-40 yrs.
MorrocroftOffice69,421 — — 19,286 177,199 19,286 177,199 196,485 2,660 1992 5-40 yrs.
Capitol TowersOffice130,498 — — 9,202 102,179 9,202 102,179 111,381 1,351 2015 5-40 yrs.
Initial CostsCosts Capitalized
Subsequent to
Acquisition
Gross Value at Close of PeriodLife on
Which
Depreciation
is
Calculated
DescriptionProperty
Type
2021
Encumbrance
LandBldg &
Improv
LandBldg &
Improv
LandBldg &
Improv
Total
Assets (1)
Accumulated
Depreciation
Date of
Construction
Nashville, TN
3322 West EndOffice3,025 27,490 — 12,054 3,025 39,544 42,569 20,091 1986 5-40 yrs.
3401 West EndOffice5,862 22,917 — 6,755 5,862 29,672 35,534 16,937 1982 5-40 yrs.
5310 Maryland WayOffice1,863 7,201 — 3,796 1,863 10,997 12,860 7,051 1994 5-40 yrs.
Cool Springs I & II DeckOffice— — — 3,994 — 3,994 3,994 1,415 2007 5-40 yrs.
Cool Springs III & IV DeckOffice— — — 4,466 — 4,466 4,466 1,649 2007 5-40 yrs.
Cool Springs IOffice1,583 — 15 18,202 1,598 18,202 19,800 8,279 1999 5-40 yrs.
Cool Springs IIOffice1,824 — 346 23,961 2,170 23,961 26,131 9,567 1999 5-40 yrs.
Cool Springs IIIOffice1,631 — 804 17,091 2,435 17,091 19,526 6,329 2006 5-40 yrs.
Cool Springs IVOffice1,715 — — 20,234 1,715 20,234 21,949 6,701 2008 5-40 yrs.
Cool Springs V (Healthways)Office3,688 — 295 53,116 3,983 53,116 57,099 24,867 2007 5-40 yrs.
Harpeth On The Green IIOffice1,419 5,677 — 4,164 1,419 9,841 11,260 4,870 1984 5-40 yrs.
Harpeth On The Green IIIOffice1,660 6,649 — 3,621 1,660 10,270 11,930 5,195 1987 5-40 yrs.
Harpeth On The Green IVOffice1,713 6,842 — 3,553 1,713 10,395 12,108 5,439 1989 5-40 yrs.
Harpeth On The Green VOffice662 — 197 6,187 859 6,187 7,046 3,007 1998 5-40 yrs.
Hickory TraceOffice1,164 — 164 6,335 1,328 6,335 7,663 2,792 2001 5-40 yrs.
Highwoods Plaza IOffice1,552 — 307 9,857 1,859 9,857 11,716 5,431 1996 5-40 yrs.
Highwoods Plaza IIOffice1,448 — 307 10,062 1,755 10,062 11,817 5,449 1997 5-40 yrs.
Seven Springs IOffice2,076 — 592 13,612 2,668 13,612 16,280 6,419 2002 5-40 yrs.
SouthPointeOffice1,655 — 310 9,410 1,965 9,410 11,375 4,582 1998 5-40 yrs.
RampartsOffice2,394 12,806 — 10,834 2,394 23,640 26,034 9,660 1986 5-40 yrs.
Westwood SouthOffice2,106 — 382 12,337 2,488 12,337 14,825 6,893 1999 5-40 yrs.
100 Winners CircleOffice1,497 7,258 — 2,729 1,497 9,987 11,484 5,293 1987 5-40 yrs.
The Pinnacle at Symphony PlaceOffice91,318 — 141,469 — 6,535 — 148,004 148,004 42,086 2010 5-40 yrs.
Seven Springs East (LifePoint)Office2,525 37,587 — 281 2,525 37,868 40,393 9,716 2013 5-40 yrs.
The Shops at Seven SpringsOffice803 8,223 — 404 803 8,627 9,430 2,855 2013 5-40 yrs.
Seven Springs WestOffice2,439 51,306 — 2,034 2,439 53,340 55,779 9,777 2016 5-40 yrs.
Seven Springs IIOffice2,356 30,048 — 3,033 2,356 33,081 35,437 5,376 2017 5-40 yrs.
Bridgestone TowerOffice19,223 169,582 — 309 19,223 169,891 189,114 21,278 2017 5-40 yrs.
Virginia Springs IIOffice4,821 26,448 — — 4,821 26,448 31,269 720 2020 5-40 yrs.
MARS CampusOffice7,010 87,474 — 99 7,010 87,573 94,583 8,787 2019 5-40 yrs.
5501 Virginia WayOffice4,534 25,632 — 274 4,534 25,906 30,440 2,760 2018 5-40 yrs.
1100 Broadway - LandOffice29,845 — (200)— 29,645 — 29,645 — N/A N/A
AsurionOffice— — 33,219 230,569 33,219 230,569 263,788 2,089 2021 5-40 yrs.
Ovation - LandOffice31,063 — 58,168 — 89,231 — 89,231 — N/A N/A
Initial CostsCosts Capitalized
Subsequent to
Acquisition
Gross Value at Close of PeriodLife on
Which
Depreciation
is
Calculated
DescriptionProperty
Type
2021
Encumbrance
LandBldg &
Improv
LandBldg &
Improv
LandBldg &
Improv
Total
Assets (1)
Accumulated
Depreciation
Date of
Construction
Broadway Stem - LandOffice6,218 — — 526 6,218 526 6,744 N/A 5-40 yrs.
YMCA Site - landOffice— — 16,121 — 16,121 — 16,121 — N/A N/A
Orlando, FL
Capital Plaza Three - LandOffice2,994 — 18 — 3,012 — 3,012 — N/A N/A
The 1800 Eller Drive BuildingOffice— 9,851 — 3,092 — 12,943 12,943 8,809 1983 5-40 yrs.
Seaside PlazaOffice3,893 29,541 — 12,311 3,893 41,852 45,745 10,684 1982 5-40 yrs.
Capital Plaza TwoOffice4,346 43,394 — 8,482 4,346 51,876 56,222 12,421 1999 5-40 yrs.
Capital Plaza OneOffice3,482 27,321 — 8,988 3,482 36,309 39,791 8,932 1975 5-40 yrs.
Landmark Center TwoOffice4,743 22,031 — 9,656 4,743 31,687 36,430 9,074 1985 5-40 yrs.
Landmark Center OneOffice6,207 22,655 — 10,604 6,207 33,259 39,466 8,449 1983 5-40 yrs.
300 South OrangeOffice3,490 56,079 — 7,980 3,490 64,059 67,549 12,732 2000 5-40 yrs.
Eola CentreOffice5,785 11,160 — 14,473 5,785 25,633 31,418 4,301 1969 5-40 yrs.
Pittsburgh, PA
One PPG PlaceOffice9,819 107,643 — 51,888 9,819 159,531 169,350 50,381 1983-1985 5-40 yrs.
Two PPG PlaceOffice2,302 10,978 — 12,103 2,302 23,081 25,383 6,258 1983-1985 5-40 yrs.
Three PPG PlaceOffice501 2,923 — 4,736 501 7,659 8,160 3,174 1983-1985 5-40 yrs.
Four PPG PlaceOffice620 3,239 — 3,477 620 6,716 7,336 2,204 1983-1985 5-40 yrs.
Five PPG PlaceOffice803 4,924 — 2,577 803 7,501 8,304 2,171 1983-1985 5-40 yrs.
Six PPG PlaceOffice3,353 25,602 — 17,141 3,353 42,743 46,096 13,387 1983-1985 5-40 yrs.
EQT PlazaOffice16,457 83,812 — 17,574 16,457 101,386 117,843 29,851 1987 5-40 yrs.
East Liberty - LandOffice2,478 — — — 2,478 — 2,478 — N/A N/A
Raleigh, NC
3600 Glenwood AvenueOffice— 10,994 — 6,121 — 17,115 17,115 9,386 1986 5-40 yrs.
3737 Glenwood AvenueOffice— — 318 17,213 318 17,213 17,531 9,183 1999 5-40 yrs.
4800 North ParkOffice2,678 17,630 — 7,396 2,678 25,026 27,704 14,800 1985 5-40 yrs.
5000 North ParkOffice1,010 4,612 (49)3,231 961 7,843 8,804 4,394 1980 5-40 yrs.
801 Raleigh Corporate CenterOffice828 — 272 11,686 1,100 11,686 12,786 5,135 2002 5-40 yrs.
2500 Blue Ridge RoadOffice722 4,606 — 1,428 722 6,034 6,756 4,013 1982 5-40 yrs.
2418 Blue Ridge RoadOffice462 1,410 — 2,869 462 4,279 4,741 1,881 1988 5-40 yrs.
2000 CentreGreenOffice1,529 — (391)13,299 1,138 13,299 14,437 5,027 2000 5-40 yrs.
4000 CentreGreenOffice1,653 — (389)11,270 1,264 11,270 12,534 4,959 2001 5-40 yrs.
5000 CentreGreenOffice1,291 34,572 — 2,963 1,291 37,535 38,826 6,789 2017 5-40 yrs.
3000 CentreGreenOffice1,779 — (397)14,714 1,382 14,714 16,096 5,302 2002 5-40 yrs.
1000 CentreGreenOffice1,280 — 55 13,969 1,335 13,969 15,304 4,252 2008 5-40 yrs.
GlenLake - LandOffice13,003 — (12,382)114 621 114 735 59 N/A5-40 yrs.
Initial CostsCosts Capitalized
Subsequent to
Acquisition
Gross Value at Close of PeriodLife on
Which
Depreciation
is
Calculated
DescriptionProperty
Type
2021
Encumbrance
LandBldg &
Improv
LandBldg &
Improv
LandBldg &
Improv
Total
Assets (1)
Accumulated
Depreciation
Date of
Construction
GlenLake OneOffice924 — 1,324 23,185 2,248 23,185 25,433 10,795 2002 5-40 yrs.
GlenLake FourOffice1,659 — 493 20,527 2,152 20,527 22,679 7,671 2006 5-40 yrs.
GlenLake SixOffice941 — (365)20,058 576 20,058 20,634 6,887 2008 5-40 yrs.
701 Raleigh Corporate CenterOffice1,304 — 540 18,440 1,844 18,440 20,284 9,149 1996 5-40 yrs.
Highwoods CentreOffice531 — (267)8,028 264 8,028 8,292 4,555 1998 5-40 yrs.
Inveresk Parcel 2 - LandOffice657 — 38 103 695 103 798 16 N/A 5-40 yrs.
4201 Lake Boone TrailOffice1,450 6,311 — 916 1,450 7,227 8,677 2,254 19985-40 yrs.
4620 Creekstone DriveOffice149 — 107 3,395 256 3,395 3,651 1,623 2001 5-40 yrs.
4825 Creekstone DriveOffice398 — 293 10,670 691 10,670 11,361 5,653 1999 5-40 yrs.
751 Corporate CenterOffice2,665 16,939 — (50)2,665 16,889 19,554 2,564 2018 5-40 yrs.
PNC PlazaOffice1,206 — — 70,872 1,206 70,872 72,078 27,086 20085-40 yrs.
4301 Lake Boone TrailOffice878 3,730 — 2,524 878 6,254 7,132 4,220 1990 5-40 yrs.
4207 Lake Boone TrailOffice362 1,818 — 1,448 362 3,266 3,628 2,299 1993 5-40 yrs.
2301 Rexwoods DriveOffice919 2,816 — 1,633 919 4,449 5,368 2,964 1992 5-40 yrs.
4325 Lake Boone TrailOffice586 — — 4,842 586 4,842 5,428 3,050 1995 5-40 yrs.
2300 Rexwoods DriveOffice1,301 — 184 8,863 1,485 8,863 10,348 3,405 1998 5-40 yrs.
4709 Creekstone DriveOffice469 4,038 23 5,434 492 9,472 9,964 3,415 1987 5-40 yrs.
4700 Six Forks RoadOffice666 2,665 — 1,803 666 4,468 5,134 2,420 1982 5-40 yrs.
4700 Homewood CourtOffice1,086 4,533 — 1,870 1,086 6,403 7,489 3,887 1983 5-40 yrs.
4800 Six Forks RoadOffice862 4,411 — 3,338 862 7,749 8,611 4,703 1987 5-40 yrs.
4601 Creekstone DriveOffice255 — 217 5,771 472 5,771 6,243 3,334 19975-40 yrs.
Weston - LandOffice22,771 — (19,894)— 2,877 — 2,877 — N/AN/A
4625 Creekstone DriveOffice458 — 268 6,016 726 6,016 6,742 3,632 19955-40 yrs.
11000 Weston ParkwayOffice2,651 18,850 — 14,540 2,651 33,390 36,041 7,842 19985-40 yrs.
GlenLake FiveOffice2,263 30,264 — 3,694 2,263 33,958 36,221 10,197 20145-40 yrs.
11800 Weston ParkwayOffice826 13,188 — 18 826 13,206 14,032 3,345 20145-40 yrs.
CentreGreen CaféOffice41 3,509 — (2)41 3,507 3,548 621 20145-40 yrs.
CentreGreen Fitness CenterOffice27 2,322 — (1)27 2,321 2,348 411 20145-40 yrs.
One City PlazaOffice11,288 68,375 — 26,283 11,288 94,658 105,946 24,562 19865-40 yrs.
Edison - LandOffice5,984 — 2,031 — 8,015 — 8,015 — N/A N/A
Charter SquareOffice7,267 65,881 — 4,464 7,267 70,345 77,612 11,979 20155-40 yrs.
MetLife Global Technology CampusOffice21,580 149,889 — 41 21,580 149,930 171,510 24,164 2015 5-40 yrs.
GlenLake SevenOffice1,662 37,332 — — 1,662 37,332 38,994 1,624 2020 5-40 yrs.
Hargett - LandOffice9,248 — — — 9,248 — 9,248 — N/A N/A
Forum IOffice— — 1,278 27,809 1,278 27,809 29,087 1,197 19855-40 yrs.
Initial CostsCosts Capitalized
Subsequent to
Acquisition
Gross Value at Close of PeriodLife on
Which
Depreciation
is
Calculated
DescriptionProperty
Type
2021
Encumbrance
LandBldg &
Improv
LandBldg &
Improv
LandBldg &
Improv
Total
Assets (1)
Accumulated
Depreciation
Date of
Construction
Forum IIOffice— — 1,327 18,088 1,327 18,088 19,415 758 19885-40 yrs.
Forum IIIOffice— — 994 23,931 994 23,931 24,925 1,001 19955-40 yrs.
Forum IVOffice— — 2,118 43,889 2,118 43,889 46,007 1,590 20005-40 yrs.
Forum VOffice— — 1,552 26,263 1,552 26,263 27,815 1,190 20075-40 yrs.
Captrust TowerOffice84,972 — — 9,670 124,530 9,670 124,530 134,200 1,673 20105-40 yrs.
150 FayettevilleOffice115,731 — — 7,677 130,049 7,677 130,049 137,726 2,185 19915-40 yrs.
Other PropertyOther27,260 20,868 (13,177)31,819 14,083 52,687 66,770 28,878 N/A5-40 yrs.
Richmond, VA
4900 Cox RoadOffice1,324 5,311 15 3,930 1,339 9,241 10,580 5,815 1991 5-40 yrs.
Colonnade BuildingOffice1,364 6,105 — 2,479 1,364 8,584 9,948 3,997 2003 5-40 yrs.
Dominion Place - Pitts Parcel - LandOffice1,101 — (465)— 636 — 636 — N/A N/A
Markel 4521Office1,581 13,299 168 (397)1,749 12,902 14,651 6,641 1999 5-40 yrs.
Highwoods CommonsOffice521 — 458 4,581 979 4,581 5,560 2,342 1999 5-40 yrs.
Highwoods OneOffice1,688 — 22 14,252 1,710 14,252 15,962 7,762 1996 5-40 yrs.
Highwoods TwoOffice786 — 226 10,483 1,012 10,483 11,495 4,504 1997 5-40 yrs.
Highwoods FiveOffice783 — 11 8,177 794 8,177 8,971 4,130 1998 5-40 yrs.
Highwoods PlazaOffice909 — 187 5,880 1,096 5,880 6,976 2,885 2000 5-40 yrs.
Innslake CenterOffice845 — 125 7,735 970 7,735 8,705 3,566 2001 5-40 yrs.
Highwoods CentreOffice1,205 4,825 — 2,795 1,205 7,620 8,825 3,789 1990 5-40 yrs.
Markel 4501Office1,300 13,259 213 (3,295)1,513 9,964 11,477 4,389 1998 5-40 yrs.
4600 Cox RoadOffice1,700 17,081 169 (3,432)1,869 13,649 15,518 6,007 1989 5-40 yrs.
North ParkOffice2,163 8,659 3,436 2,169 12,095 14,264 6,708 1989 5-40 yrs.
North Shore Commons IOffice951 — 137 12,972 1,088 12,972 14,060 6,435 2002 5-40 yrs.
North Shore Commons IIOffice2,067 — (89)11,526 1,978 11,526 13,504 4,036 2007 5-40 yrs.
North Shore Commons C - LandOffice1,497 — 55 10 1,552 10 1,562 N/A N/A
North Shore Commons D - LandOffice1,261 — — — 1,261 — 1,261 — N/A N/A
One Shockoe PlazaOffice— — 356 21,632 356 21,632 21,988 11,239 1996 5-40 yrs.
Pavilion - LandOffice181 46 (181)(46)— — — — N/AN/A
Lake Brook CommonsOffice1,600 8,864 21 3,018 1,621 11,882 13,503 6,082 1996 5-40 yrs.
Sadler & Cox - LandOffice1,535 — 343 — 1,878 — 1,878 — N/A N/A
Highwoods ThreeOffice1,918 — 358 12,337 2,276 12,337 14,613 4,797 2005 5-40 yrs.
Stony Point IOffice1,384 11,630 (267)4,472 1,117 16,102 17,219 8,937 1990 5-40 yrs.
Stony Point IIOffice1,240 — 103 13,949 1,343 13,949 15,292 6,983 1999 5-40 yrs.
Stony Point IIIOffice995 — — 11,166 995 11,166 12,161 5,785 2002 5-40 yrs.
Stony Point IVOffice955 — — 11,955 955 11,955 12,910 4,860 2006 5-40 yrs.
Initial CostsCosts Capitalized
Subsequent to
Acquisition
Gross Value at Close of PeriodLife on
Which
Depreciation
is
Calculated
DescriptionProperty
Type
2021
Encumbrance
LandBldg &
Improv
LandBldg &
Improv
LandBldg &
Improv
Total
Assets (1)
Accumulated
Depreciation
Date of
Construction
Virginia MutualOffice1,301 6,036 15 2,598 1,316 8,634 9,950 3,865 1996 5-40 yrs.
Innsbrook CentreOffice914 8,249 — 896 914 9,145 10,059 4,279 1987 5-40 yrs.
Elks Pass Lane - LandOffice3,326 — 141 — 3,467 — 3,467 — N/A N/A
Tampa, FL
Meridian ThreeOffice2,673 16,470 — 6,510 2,673 22,980 25,653 8,097 1989 5-40 yrs.
Bayshore PlaceOffice2,276 11,817 — 3,575 2,276 15,392 17,668 7,730 1990 5-40 yrs.
5525 Gray StreetOffice4,054 — 406 25,163 4,460 25,163 29,623 9,273 2005 5-40 yrs.
Highwoods Bay Center IOffice3,565 — (64)38,144 3,501 38,144 41,645 14,054 2007 5-40 yrs.
HorizonOffice— 6,257 — 4,475 — 10,732 10,732 5,419 1980 5-40 yrs.
LakePointe OneOffice2,106 89 — 41,965 2,106 42,054 44,160 24,503 1986 5-40 yrs.
LakePointe TwoOffice2,000 15,848 672 15,394 2,672 31,242 33,914 17,421 1999 5-40 yrs.
LakesideOffice— 7,369 — 7,160 — 14,529 14,529 7,722 1978 5-40 yrs.
Lakeside/Parkside GarageOffice— — — 5,731 — 5,731 5,731 2,702 2004 5-40 yrs.
One Harbour PlaceOffice2,016 25,252 — 16,815 2,016 42,067 44,083 19,922 1985 5-40 yrs.
ParksideOffice— 9,407 — 3,417 — 12,824 12,824 6,566 1979 5-40 yrs.
PavilionOffice— 16,394 — 5,793 — 22,187 22,187 13,108 1982 5-40 yrs.
Pavilion Parking GarageOffice— — — 5,911 — 5,911 5,911 3,192 1999 5-40 yrs.
SpectrumOffice1,454 14,502 — 5,112 1,454 19,614 21,068 10,788 1984 5-40 yrs.
Tower PlaceOffice3,218 19,898 — 8,630 3,218 28,528 31,746 14,728 1988 5-40 yrs.
Westshore SquareOffice1,126 5,186 — 1,738 1,126 6,924 8,050 3,925 1976 5-40 yrs.
Independence Park - LandOffice4,943 — 5,058 2,227 10,001 2,227 12,228 269 N/A 5-40 yrs.
Independence OneOffice2,531 4,526 — 5,813 2,531 10,339 12,870 5,718 1983 5-40 yrs.
Meridian OneOffice1,849 22,363 — 3,314 1,849 25,677 27,526 6,611 1984 5-40 yrs.
Meridian TwoOffice1,302 19,588 — 5,470 1,302 25,058 26,360 6,826 1986 5-40 yrs.
5332 Avion Park DriveOffice— — 6,310 39,620 6,310 39,620 45,930 5,378 2016 5-40 yrs.
Truist PlaceOffice1,980 102,138 — 25,702 1,980 127,840 129,820 24,605 1992 5-40 yrs.
Truist Place - LandOffice2,225 — — — 2,225 — 2,225 — N/A N/A
MidtownOffice— — 16,543 34,818 16,543 34,818 51,361 533 2021 5-40 yrs.
$602,096 $3,235,692 $165,871 $2,482,477 $767,967 $5,718,169 $6,486,136 $1,457,511 
__________
(1)The cost basis for income tax purposes of aggregate land and buildings and tenant improvements as of December 31, 2021 is $6.0 billion.
v3.22.0.1
Description of Business and Significant Accounting Policies (Policies)
12 Months Ended
Dec. 31, 2021
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, 2021, we had involvement with, and are the primary beneficiary in, an entity that we concluded to be a variable interest entity. As such, this entity is consolidated. Additionally, at December 31, 2021, we had involvement with, but are not the primary beneficiary in, an entity that we concluded to be a variable interest entity. As such, this entity is not consolidated. We also owned three properties through a joint venture investment at December 31, 2021 that were consolidated. (See Note 4).

All intercompany transactions and accounts have been eliminated.
Use of Estimates
Use of Estimates

The preparation of consolidated financial statements in accordance with GAAP requires us to make estimates and assumptions that affect the amounts reported in our Consolidated Financial Statements and accompanying notes. Actual results could differ from those estimates.
Insurance
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, 2021, 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 the initial fixed terms of the respective leases, which generally are from three to 10 years. Depreciation expense for real estate assets was $218.6 million, $204.6 million and $214.7 million for the years ended December 31, 2021, 2020 and 2019, 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 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.

Assumed debt, if any, is recorded at fair value based on the present value of the expected future payments.
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.
Leases
Leases

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 are 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 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 the credit quality of our customer, historical trends of the customer and changes in customer payment terms. We do not maintain a general reserve to estimate amounts that may not be collectible. 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.
Discontinued Operations Discontinued OperationsProperties 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, 2021, properties that we wholly own were leased to 1,468 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 2021.
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 for 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 for 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 provides temporary optional expedients and exceptions to the guidance on contract modifications and hedge accounting to ease the financial reporting burdens related to the expected market transition from LIBOR and other interbank offered rates to alternative reference rates, such as the Secured Overnight Financing Rate (“SOFR”). Entities can elect not to apply certain modification accounting requirements to contracts affected by reference rate reform, if certain criteria are met. An entity that makes this election would not have to remeasure the contracts at the modification date or reassess a previous accounting determination. Entities can also elect various optional expedients that would allow them to continue applying hedge accounting for hedging relationships affected by reference rate reform, if certain criteria are met. The guidance in this ASU is optional and may be elected now through December 31, 2022 as reference rate reform activities occur. We will continue to evaluate the impact of this ASU; however, we currently expect to avail ourselves of such optional expedients and exceptions should our modified contracts meet the required criteria.

Due to the business disruptions and challenges severely affecting the global economy caused by the COVID-19 pandemic, lessors may provide rent deferrals and other lease concessions to lessees. In April 2020, the FASB staff issued a question and answer document (the “Lease Modification Q&A”) focused on the application of lease accounting guidance to lease concessions provided as a result of the COVID-19 pandemic. Under existing lease guidance, we would have to determine, on a lease by lease basis, if a lease concession was the result of a new arrangement reached with the tenant (treated within the lease modification accounting framework) or if a lease concession was under the enforceable rights and obligations within the existing lease agreement (precluded from applying the lease modification accounting framework). The Lease Modification Q&A allows us, if certain criteria have been met, to bypass the lease by lease analysis, and instead elect to either apply the lease modification accounting framework or not, with such election applied consistently to leases with similar characteristics and similar circumstances. We have elected the practical expedient and will not apply lease modification accounting on a lease by lease basis where applicable. As a result, $0.7 million and $3.7 million of deferred rent is included in accounts receivable on our Consolidated Balance Sheets at December 31, 2021 and 2020, respectively.
v3.22.0.1
Leases (Tables)
12 Months Ended
Dec. 31, 2021
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, 2021 for our consolidated properties:
2022$695,896 
2023669,753 
2024619,033 
2025525,223 
2026461,045 
Thereafter1,967,017 
$4,937,967 
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, 2021 and a reconciliation of those cash flows to the operating lease liability at December 31, 2021:

2022$2,169 
20232,167 
20242,123 
20252,170 
20262,220 
Thereafter79,307 
90,156 
Discount(56,337)
Lease liability$33,819 
v3.22.0.1
Real Estate Assets (Tables)
12 Months Ended
Dec. 31, 2021
Real Estate [Abstract]  
Schedule of Investment Activity
During 2021, we acquired a portfolio of real estate assets from PAC. The portfolio consists of the following assets:

AssetMarketSubmarket/BBDSquare Footage
150 FayettevilleRaleighCBD560,000
CAPTRUST TowersRaleighNorth Hills300,000
Capitol TowersCharlotteSouthPark479,000
Morrocroft CentreCharlotteSouthPark291,000
Galleria 75 Redevelopment SiteAtlantaCumberland/Galleria
Asset Acquisition
The following table sets forth a summary of the relative fair value of the material assets acquired and liabilities assumed relating to this acquisition:

Amount Recorded at Acquisition
Real estate assets (1)
$593,039 
Acquisition-related intangible assets (in deferred financing and leasing costs) (1)
$61,126 
Right of use asset (in prepaid expenses and other assets) (1)
$8,440 
Mortgages and notes payable$(403,000)
Debt issuance costs (in mortgages and notes payable) (1)
$3,473 
Acquisition-related intangible liabilities (in accounts payable, accrued expenses and other liabilities) (1)
$(7,174)
Lease liability (in accounts payable, accrued expenses and other liabilities) (1)
$(5,310)
__________
(1)Included in purchase price.
v3.22.0.1
Investments In and Advances To Affiliates (Tables)
12 Months Ended
Dec. 31, 2021
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, 2021:
Joint VentureLocationOwnership
Interest
Plaza Colonnade, Tenant-in-CommonKansas City50.0%
Brand/HRLP 2827 Peachtree LLCAtlanta50.0%
Kessinger/Hunter & Company, LCKansas City26.5%
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,
20212020
Net real estate assets$53,191 $— 
Development in-process$— $46,873 
Cash and cash equivalents $389 $— 
Accrued straight-line rents receivable $121 $— 
Deferred leasing costs, net$1,519 $196 
Prepaid expenses and other assets$163 $75 
Accounts payable, accrued expenses and other liabilities$646 $2,693 
v3.22.0.1
Intangible Assets and Below Market Lease Liabilities (Tables)
12 Months Ended
Dec. 31, 2021
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,
20212020
Assets:
Deferred leasing costs (including lease incentives and above market lease and in-place lease acquisition-related intangible assets)
$402,013 $361,027 
Less accumulated amortization(143,111)(151,698)
$258,902 $209,329 
Liabilities (in accounts payable, accrued expenses and other liabilities):
Acquisition-related below market lease liabilities$57,703 $63,748 
Less accumulated amortization(28,978)(37,838)
$28,725 $25,910 
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,
202120202019
Amortization of deferred leasing costs and acquisition-related intangible assets (in depreciation and amortization)
$38,173 $34,401 $37,386 
Amortization of lease incentives (in rental and other revenues)$1,885 $1,847 $4,281 
Amortization of acquisition-related intangible assets (in rental and other revenues)
$1,932 $1,137 $1,290 
Amortization of acquisition-related intangible assets (in rental property and other expenses)
$— $510 $557 
Amortization of acquisition-related below market lease liabilities (in rental and other revenues)
$(5,720)$(6,031)$(6,633)
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 Below Market Lease Liabilities (in Rental and Other Revenues)
2022$41,823 $1,534 $2,986 $(5,294)
202336,891 1,428 2,829 (4,824)
202432,716 1,284 2,573 (4,111)
202525,856 1,209 1,667 (2,594)
202621,992 1,084 1,336 (2,294)
Thereafter73,343 3,557 4,794 (9,608)
$232,621 $10,096 $16,185 $(28,725)
Weighted average remaining amortization periods as of December 31, 2021 (in years)8.28.57.68.3
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 the acquisition of real estate assets from PAC and our joint venture partner's 75.0% interest in the Forum:

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$13,824 $84,298 $(8,535)
Weighted average remaining amortization periods as of December 31, 2021 (in years)7.17.18.1
v3.22.0.1
Mortgages and Notes Payable (Tables)
12 Months Ended
Dec. 31, 2021
Debt Disclosure [Abstract]  
Schedule of Consolidated Mortgages and Notes Payable
Our mortgages and notes payable consisted of the following:
December 31,
20212020
Secured indebtedness (1):
4.27% (3.61% effective rate) mortgage loan due 2028 (2)
$115,731 $— 
4.00% mortgage loan due 202991,318 93,350 
3.61% (3.19% effective rate) mortgage loan due 2029 (3)
84,973 — 
3.40% (3.50% effective rate) mortgage loan due 2033 (4)
69,422 — 
4.60% (3.73% effective rate) mortgage loan due 2037 (5)
130,498 — 
491,942 93,350 
Unsecured indebtedness:
3.20% (3.363% effective rate) notes due 2021 (6)
— 149,901 
3.625% (3.752% effective rate) notes due 2023 (7)
249,726 249,464 
3.875% (4.038% effective rate) notes due 2027 (8)
297,934 297,534 
4.125% (4.271% effective rate) notes due 2028 (9)
347,449 347,035 
4.20% (4.234% effective rate) notes due 2029 (10)
349,288 349,189 
3.050% (3.079% effective rate) notes due 2030 (11)
399,204 399,106 
2.600% (2.645% effective rate) notes due 2031 (12)
398,579 398,423 
Variable rate term loan due 2022 (13)
200,000 200,000 
Revolving credit facility due 2025 (14)
70,000 — 
2,312,180 2,390,652 
Less-unamortized debt issuance costs(15,207)(13,981)
Total mortgages and notes payable, net$2,788,915 $2,470,021 
__________
(1)Our secured mortgage loans were collateralized by real estate assets with an undepreciated book value of $727.8 million at December 31, 2021. We paid down $3.8 million of secured loan balances through principal amortization during 2021.
(2)Net of unamortized fair market value premium of $3.9 million as of December 31, 2021.
(3)Net of unamortized fair market value premium of $2.3 million as of December 31, 2021.
(4)Net of unamortized fair market value discount of $0.6 million as of December 31, 2021.
(5)Net of unamortized fair market value premium of $10.0 million as of December 31, 2021.
(6)Net of unamortized original issuance discount of $0.1 million as of December 31, 2020. This debt was repaid in 2021.
(7)Net of unamortized original issuance discount of $0.3 million and $0.5 million as of December 31, 2021 and 2020, respectively.
(8)Net of unamortized original issuance discount of $2.1 million and $2.5 million as of December 31, 2021 and 2020, respectively.
(9)Net of unamortized original issuance discount of $2.6 million and $3.0 million as of December 31, 2021 and 2020, respectively.
(10)Net of unamortized original issuance discount of $0.7 million and $0.8 million as of December 31, 2021 and 2020, respectively.
(11)Net of unamortized original issuance discount of $0.8 million and $0.9 million as of December 31, 2021 and 2020, respectively.
(12)Net of unamortized original issuance discount of $1.4 million and $1.6 million as of December 31, 2021 and 2020, respectively.
(13)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 $150.0 million was 1.20% at December 31, 2021.
(14)The interest rate was 1.00% at December 31, 2021.
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, 2021:
Years Ending December 31,Amount
2022$206,524 
2023257,059 
20247,365 
202577,176 
20266,911 
Thereafter2,249,087 
Less-unamortized debt issuance costs(15,207)
$2,788,915 
v3.22.0.1
Derivative Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Schedule of Derivative Instruments, Fair Value
The following table sets forth the fair value of our derivatives:
December 31,
20212020
Derivatives:
Derivatives designated as cash flow hedges in accounts payable, accrued expenses and other liabilities:
Interest rate swaps$60 $846 
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance
The following table sets forth the effect of our cash flow hedges on accumulated other comprehensive income/(loss) and interest expense:
Year Ended December 31,
202120202019
Derivatives Designated as Cash Flow Hedges:
Amount of unrealized losses recognized in accumulated other comprehensive income/(loss) on derivatives:
Interest rate swaps$(19)$(1,238)$(9,134)
Amount of (gains)/losses reclassified out of accumulated other comprehensive income/(loss) into interest expense:
Interest rate swaps$508 $247 $(1,250)
v3.22.0.1
Noncontrolling Interests (Tables) - Highwoods Properties, Inc. [Member]
12 Months Ended
Dec. 31, 2021
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,
20212020
Beginning noncontrolling interests in the Operating Partnership$112,499 $133,216 
Adjustment of noncontrolling interests in the Operating Partnership to fair value11,461 (30,617)
Issuances of Common Units— 6,163 
Conversions of Common Units to Common Stock(15,076)(145)
Net income attributable to noncontrolling interests in the Operating Partnership8,321 9,338 
Distributions to noncontrolling interests in the Operating Partnership(5,516)(5,456)
Total noncontrolling interests in the Operating Partnership$111,689 $112,499 
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,
202120202019
Net income available for common stockholders$310,791 $344,914 $134,430 
Increase in additional paid in capital from conversions of Common Units to Common Stock
15,076 145 663 
Issuances of Common Units
— (6,163)— 
Change from net income available for common stockholders and transfers from noncontrolling interests$325,867 $338,896 $135,093 
v3.22.0.1
Disclosure About Fair Value of Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2021
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 1Level 2
TotalQuoted Prices
in Active
Markets for Identical Assets or Liabilities
Significant Observable Inputs
Fair Value at December 31, 2021:
Assets:
Mortgages and notes receivable, at fair value (1)
$1,227 $— $1,227 
Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets)
2,866 2,866 — 
Total Assets$4,093 $2,866 $1,227 
Noncontrolling Interests in the Operating Partnership$111,689 $111,689 $— 
Liabilities:
Mortgages and notes payable, net, at fair value (1)
$2,907,492 $— $2,907,492 
Interest rate swaps (in accounts payable, accrued expenses and other liabilities)
60 — 60 
Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities)
2,866 2,866 — 
Total Liabilities$2,910,418 $2,866 $2,907,552 
Fair Value at December 31, 2020:
Assets:
Mortgages and notes receivable, at fair value (1)
$1,341 $— $1,341 
Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets)
2,573 2,573 — 
Total Assets$3,914 $2,573 $1,341 
Noncontrolling Interests in the Operating Partnership$112,499 $112,499 $— 
Liabilities:
Mortgages and notes payable, net, at fair value (1)
$2,639,163 $— $2,639,163 
Interest rate swaps (in accounts payable, accrued expenses and other liabilities)
846 — 846 
Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities)
2,573 2,573 — 
Total Liabilities$2,642,582 $2,573 $2,640,009 
__________
(1)    Amounts are not recorded at fair value on our Consolidated Balance Sheets at December 31, 2021 and 2020.
v3.22.0.1
Equity (Tables)
12 Months Ended
Dec. 31, 2021
Class of Stock [Line Items]  
Schedule of Stock by Class, Preferred Stock
The following table sets forth the Company’s outstanding Preferred Stock:

Issue DateNumber of Shares OutstandingCarrying ValueLiquidation Preference Per ShareOptional Redemption DateAnnual Dividends Payable Per Share
(in thousands)
December 31, 2021
8.625% Series A Cumulative Redeemable2/12/199729 $28,821 $1,000 2/12/2027$86.25 
December 31, 2020
8.625% Series A Cumulative Redeemable2/12/199729 $28,826 $1,000 2/12/2027$86.25 
Common Stock [Member]  
Class of Stock [Line Items]  
Schedule Of Components Of Taxability Of Company Dividends
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,
202120202019
Ordinary dividend$1.87 $1.65 $1.64 
Capital gains0.09 0.25 0.13 
Return of capital— 0.02 0.13 
Total$1.96 $1.92 $1.90 
Preferred Stock [Member]  
Class of Stock [Line Items]  
Schedule Of Components Of Taxability Of Company Dividends
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,
202120202019
8.625% Series A Cumulative Redeemable:
Ordinary dividend$82.38 $74.96 $79.90 
Capital gains3.87 11.29 6.35 
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 outstanding Preferred Units:
Issue DateNumber of
Units
Outstanding
Carrying
Value
Liquidation Preference
Per Unit
Optional Redemption
Date
Annual
Distributions
Payable
Per Unit
(in thousands)
December 31, 2021
8.625% Series A Cumulative Redeemable2/12/199729 $28,821 $1,000 2/12/2027$86.25 
December 31, 2020
8.625% Series A Cumulative Redeemable2/12/199729 $28,826 $1,000 2/12/2027$86.25 
v3.22.0.1
Employee Benefit Plans (Tables)
12 Months Ended
Dec. 31, 2021
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,
20212020
Outstanding stock options and warrants527,067 552,373 
Possible future issuance under equity incentive plans2,999,100 1,926,324 
3,526,167 2,478,697 
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award
The following table sets forth stock option activity:
Options Outstanding
Number of OptionsWeighted Average Exercise Price
Stock options outstanding at December 31, 2018596,518 $45.67 
Exercised(9,026)39.53 
Forfeited(2,590)48.79 
Stock options outstanding at December 31, 2019584,902 45.75 
Exercised(42,163)41.10 
Forfeited(5,366)50.82 
Stock options outstanding at December 31, 2020537,373 46.07 
Exercised(25,306)43.76 
Stock options outstanding at December 31, 2021 (1)
512,067 $46.18 
__________
(1)The Company had 512,067 options exercisable at December 31, 2021 with a weighted average exercise price of $46.18, weighted average remaining life of 4.0 years and intrinsic value of $0.6 million. Of these exercisable options, 279,549 had exercise prices higher than the market price of our Common Stock at December 31, 2021.
Schedule of NonQualified Deferred Compensation Liability
The following table sets forth our deferred compensation liability:

Year Ended December 31,
202120202019
Beginning deferred compensation liability$2,573 $2,345 $1,849 
Mark-to-market adjustment to deferred compensation (in general and administrative expenses)
293 228 496 
Total deferred compensation liability$2,866 $2,573 $2,345 
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 SharesWeighted Average Grant Date Fair Value
Restricted shares outstanding at December 31, 2018191,239 $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, 2019218,151 45.73 
Awarded and issued (1)
83,116 44.88 
Vested (2)
(88,326)45.86 
Forfeited(3,751)45.78 
Restricted shares outstanding at December 31, 2020209,190 45.34 
Awarded and issued (1)
103,120 39.99 
Vested (2)
(89,264)45.90 
Forfeited(3,327)43.13 
Restricted shares outstanding at December 31, 2021219,719 $42.63 
__________
(1)The weighted average fair value at grant date of time-based restricted stock issued during the years ended December 31, 2021, 2020 and 2019 was $4.1 million, $3.7 million and $4.8 million, respectively.
(2)The vesting date fair value of time-based restricted stock that vested during the years ended December 31, 2021, 2020 and 2019 was $3.6 million, $3.9 million and $3.3 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 Compensation, Restricted Stock Units Award Activity
The following table sets forth total return-based restricted stock activity:
Number of SharesWeighted Average Grant Date Fair Value
Restricted shares outstanding at December 31, 2018180,094 $43.34 
Awarded and issued (1)
87,344 39.42 
Vested (2)
(45,901)43.68 
Forfeited (3)
(12,689)43.58 
Restricted shares outstanding at December 31, 2019208,848 42.22 
Awarded and issued (1)
66,188 38.31 
Forfeited (3)
(49,852)51.93 
Restricted shares outstanding at December 31, 2020225,184 39.53 
Awarded and issued (1)
81,464 36.41 
Vested (2)
(55,452)43.01 
Forfeited (3)
(21,904)42.33 
Restricted shares outstanding at December 31, 2021229,292 $38.00 
__________
(1)The fair value at grant date of total return-based restricted stock issued during the years ended December 31, 2021, 2020 and 2019 was $2.9 million, $2.5 million and $3.4 million, respectively, at target.
(2)The vesting date fair value of total return-based restricted stock that vested during the years ended December 31, 2021 and 2019 was $2.2 million and $2.1 million, respectively, based on the performance of the specific plans. Vested shares include those shares surrendered by employees to satisfy tax withholding obligations in connection with such vesting. There were no vested shares of total return-based restricted stock during the year ended December 31, 2020.
(3)The 2021, 2020 and 2019 amounts include 18,484, 46,852 and 9,521 shares, respectively, that were forfeited at the end of the applicable measurement period because the applicable total return did not meet targeted levels.
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions The fair values of the total return-based restricted stock granted were determined at the grant dates using a Monte Carlo simulation model and the following assumptions:
202120202019
Risk free interest rate (1) 
0.3 %0.9 %2.4 %
Common stock dividend yield (2) 
4.8 %3.9 %4.4 %
Expected volatility (3) 
26.8 %20.4 %27.3 %
__________
(1)Represents the interest rate as of the grant date on US treasury bonds having the same life as the estimated life of the total return-based restricted stock grants.
(2)The dividend yield is calculated utilizing the then current regular dividend rate for a one-year period and the average per share price of Common Stock during the three-month period preceding the date of grant.
(3)Based on the historical volatility of Common Stock over a period relevant to the related total return-based restricted stock grant.
v3.22.0.1
Accumulated Other Comprehensive Income/(Loss) (Tables)
12 Months Ended
Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Components of Accumulated Comprehensive Income/(Loss)
The following table sets forth the components of accumulated other comprehensive income/(loss):
December 31,
20212020
Cash flow hedges:
Beginning balance$(1,462)$(471)
Unrealized losses on cash flow hedges(19)(1,238)
Amortization of cash flow hedges (1)
508 247 
Total accumulated other comprehensive loss$(973)$(1,462)
__________
(1)    Amounts reclassified out of accumulated other comprehensive income/(loss) into interest expense.
v3.22.0.1
Real Estate and Other Assets Held For Sale (Tables)
12 Months Ended
Dec. 31, 2021
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, 2021 and 2020, which are considered non-core:

December 31,
20212020
Assets:
Land$— $2,612 
Buildings and tenant improvements— 12,238 
Land held for development3,482 — 
Less-accumulated depreciation— (3,577)
Net real estate assets3,482 11,273 
Deferred leasing costs, net— 87 
Prepaid expenses and other assets36 — 
Real estate and other assets, net, held for sale$3,518 $11,360 
v3.22.0.1
Earnings Per Share and Per Unit (Tables)
12 Months Ended
Dec. 31, 2021
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,
202120202019
Earnings per Common Share - basic:
Numerator:
Net income$323,310 $357,914 $141,683 
Net (income) attributable to noncontrolling interests in the Operating Partnership(8,321)(9,338)(3,551)
Net (income) attributable to noncontrolling interests in consolidated affiliates(1,712)(1,174)(1,214)
Dividends on Preferred Stock(2,486)(2,488)(2,488)
Net income available for common stockholders$310,791 $344,914 $134,430 
Denominator:
Denominator for basic earnings per Common Share – weighted average shares (1)
104,232 103,876 103,692 
Net income available for common stockholders$2.98 $3.32 $1.30 
Earnings per Common Share - diluted:
Numerator:
Net income$323,310 $357,914 $141,683 
Net (income) attributable to noncontrolling interests in consolidated affiliates(1,712)(1,174)(1,214)
Dividends on Preferred Stock(2,486)(2,488)(2,488)
Net income available for common stockholders before net (income) attributable to noncontrolling interests in the Operating Partnership$319,112 $354,252 $137,981 
Denominator:
Denominator for basic earnings per Common Share – weighted average shares (1)
104,232 103,876 103,692 
Add:
Stock options using the treasury method18 22 
Noncontrolling interests Common Units2,811 2,830 2,731 
Denominator for diluted earnings per Common Share – adjusted weighted average shares and assumed conversions107,061 106,714 106,445 
Net income available for common stockholders$2.98 $3.32 $1.30 
__________
(1)Includes all unvested restricted stock where dividends on such restricted stock are non-forfeitable.
Highwoods Realty Limited Partnership [Member]  
Earnings Per Share/Unit Basic and Diluted [Line Items]  
Earnings Per Unit
The following table sets forth the computation of basic and diluted earnings per unit of the Operating Partnership:

Year Ended December 31,
202120202019
Earnings per Common Unit - basic:
Numerator:
Net income$323,310 $357,914 $141,683 
Net (income) attributable to noncontrolling interests in consolidated affiliates(1,712)(1,174)(1,214)
Distributions on Preferred Units(2,486)(2,488)(2,488)
Net income available for common unitholders$319,112 $354,252 $137,981 
Denominator:
Denominator for basic earnings per Common Unit – weighted average units (1)
106,634 106,297 106,014 
Net income available for common unitholders$2.99 $3.33 $1.30 
Earnings per Common Unit - diluted:
Numerator:
Net income$323,310 $357,914 $141,683 
Net (income) attributable to noncontrolling interests in consolidated affiliates(1,712)(1,174)(1,214)
Distributions on Preferred Units(2,486)(2,488)(2,488)
Net income available for common unitholders$319,112 $354,252 $137,981 
Denominator:
Denominator for basic earnings per Common Unit – weighted average units (1)
106,634 106,297 106,014 
Add:
Stock options using the treasury method18 22 
Denominator for diluted earnings per Common Unit – adjusted weighted average units and assumed conversions106,652 106,305 106,036 
Net income available for common unitholders$2.99 $3.33 $1.30 
__________
(1)Includes all unvested restricted stock where distributions on such restricted stock are non-forfeitable.
v3.22.0.1
Income Taxes (Tables)
12 Months Ended
Dec. 31, 2021
Income Tax Disclosure [Abstract]  
Schedule of Income Tax Expense/(Benefit)
The following table sets forth the Company’s income tax expense:

Year Ended December 31,
202120202019
Current tax expense:
Federal$40 $110 $202 
State79 240 148 
119 350 350 
Deferred tax expense/(benefit):
Federal(39)(9)14 
State58 (4)(120)
19 (13)(106)
Total income tax expense$138 $337 $244 
v3.22.0.1
Segment Information (Tables)
12 Months Ended
Dec. 31, 2021
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. Our segment information as of and for the year ended December 31, 2019 has been retrospectively revised from previously reported amounts to reflect a change in our reportable segments as a result of recent dispositions.
Year Ended December 31,
202120202019
Rental and Other Revenues:
Office:
Atlanta$143,612 $146,704 $151,279 
Charlotte49,347 35,733 4,650 
Nashville149,674 138,089 133,867 
Orlando51,281 49,459 52,679 
Pittsburgh57,371 58,518 60,755 
Raleigh162,115 128,189 122,173 
Richmond45,941 48,079 49,428 
Tampa97,954 99,520 86,431 
Total Office Segment757,295 704,291 661,262 
Other10,712 32,609 74,717 
Total Rental and Other Revenues$768,007 $736,900 $735,979 
Net Operating Income:
Office:
Atlanta$94,122 $95,448 $97,019 
Charlotte38,464 28,431 3,791 
Nashville110,039 99,901 97,386 
Orlando31,301 29,546 32,062 
Pittsburgh34,248 35,631 36,249 
Raleigh121,005 95,926 88,402 
Richmond31,726 33,667 33,756 
Tampa64,396 67,059 50,339 
Total Office Segment525,301 485,609 439,004 
Other 6,270 19,466 48,464 
Total Net Operating Income531,571 505,075 487,468 
Reconciliation to net income:
Depreciation and amortization(259,255)(241,585)(254,504)
Impairments of real estate assets— (1,778)(5,849)
General and administrative expenses(40,553)(41,031)(44,067)
Interest expense(85,853)(80,962)(81,648)
Other income/(loss)1,394 (1,707)(2,510)
Gains on disposition of property174,059 215,897 39,517 
Equity in earnings of unconsolidated affiliates1,947 4,005 3,276 
Net income$323,310 $357,914 $141,683 
December 31,
20212020
Total Assets:
Office:
Atlanta$947,877 $1,011,807 
Charlotte771,121 443,051 
Nashville1,294,178 1,191,219 
Orlando285,781 289,129 
Pittsburgh310,296 313,783 
Raleigh1,269,200 839,831 
Richmond202,488 240,976 
Tampa514,303 556,951 
Total Office Segment5,595,244 4,886,747 
Other99,894 322,670 
Total Assets$5,695,138 $5,209,417 
v3.22.0.1
Description of Business and Significant Accounting Policies (Details)
$ in Thousands, ft² in Millions
12 Months Ended
Dec. 31, 2021
USD ($)
ft²
customers
numberOfBuildings
shares
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Description of Business [Abstract]      
Rentable square feet of commercial real estate (in square feet) | ft² 28.0    
Rentable square feet of commercial real estate under development (in square feet) | ft² 0.6    
Rentable square feet of potential office build (in square feet) | ft² 5.0    
Number of common units required to convert to one share of common stock (in shares) 1    
Number of trading days preceeding Redemption Notice Date (in days) 10 days    
Consolidated in-service office properties not wholly owned (in units) | numberOfBuildings 3    
Self insurance liability | $ $ 600    
Real estate assets, depreciation expense | $ $ 218,628 $ 204,585 $ 214,682
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 1,468    
Percent of annualized cash rental revenue derived from geographic locations 10.00%    
Limit of consolidated revenue generated by any single customer 5.00%    
Deferred rents included in accounts receivable | $ $ 700 $ 3,700  
Minimum [Member]      
Description of Business [Abstract]      
Operating leases, term of leases (in years) 3 years    
Adjustment interval of variable debt interest rates, mimimum (in months) 1 month    
Maximum [Member]      
Description of Business [Abstract]      
Operating leases, term of leases (in years) 10 years    
Adjustment interval of variable debt interest rates, mimimum (in months) 3 months    
Building [Member]      
Description of Business [Abstract]      
Property, plant and equipment useful life 40 years    
Building Improvements [Member]      
Description of Business [Abstract]      
Property, plant and equipment useful life 15 years    
Furniture and Fixtures [Member] | Minimum [Member]      
Description of Business [Abstract]      
Property, plant and equipment useful life 5 years    
Furniture and Fixtures [Member] | Maximum [Member]      
Description of Business [Abstract]      
Property, plant and equipment useful life 7 years    
Leaseholds and Leasehold Improvements [Member] | Minimum [Member]      
Description of Business [Abstract]      
Property, plant and equipment useful life 3 years    
Leaseholds and Leasehold Improvements [Member] | Maximum [Member]      
Description of Business [Abstract]      
Property, plant and equipment useful life 10 years    
Highwoods Properties, Inc. [Member]      
Description of Business [Abstract]      
Common Units of partnership owned (in shares) 104,500,000    
Percentage of ownership of Common Units 97.70%    
Common units redeemed for a like number of common shares of stock (in shares) 333,920    
Highwoods Realty Limited Partnership [Member]      
Description of Business [Abstract]      
Common Units of partnership not owned by the Company (in shares) 2,500,000    
v3.22.0.1
Leases ASC 842 (Details)
$ in Thousands, ft² in Millions
12 Months Ended
Dec. 31, 2021
USD ($)
ft²
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Lessor Disclosure [Abstract]      
Rental and other revenues related to operating lease payments $ 754,900 $ 726,000 $ 723,100
Variable lease payments 57,300 56,000 65,400
Operating leases, scheduled future minimum payments receivable [Abstract]      
2022 695,896    
2023 669,753    
2024 619,033    
2025 525,223    
2026 461,045    
Thereafter 1,967,017    
Operating leases, total future minimum payments receivable due $ 4,937,967    
Lessee Disclosure [Abstract]      
Rentable square feet subject to ground leases (in square feet) | ft² 2.8    
Weighted average remaining term of ground leases (in years) 51 years    
Operating lease liability upon initial adoption $ 35,300    
Operating Lease, Liability, Statement of Financial Position [Extensible List] Accounts Payable and Accrued Liabilities    
Right of use asset upon initial adoption $ 29,700    
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Prepaid expenses and other assets    
Operating lease discount rate (in hundredths) 4.50%    
Operating ground lease expense $ 2,600 2,600 2,500
Operating ground lease payments 2,300 $ 2,200 $ 2,200
Operating ground lease liabilities, scheduled future minimum payments [Abstract]      
2022 2,169    
2023 2,167    
2024 2,123    
2025 2,170    
2026 2,220    
Thereafter 79,307    
Operating ground lease liability, total future minimum payments 90,156    
Operating lease liability discount (56,337)    
Operating lease liability $ 33,819    
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration] Accounts Payable and Accrued Liabilities    
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Prepaid expenses and other assets    
Finance lease liability $ 5,300    
Finance lease right of use asset $ 5,300    
Finance lease discount rate (in hundredths) 2.60%    
Additional right of use asset $ 3,100    
v3.22.0.1
Real Estate Asset Acquisition (Details)
$ in Thousands
Dec. 31, 2021
USD ($)
Asset Acquisition, Purchase Price Allocation [Abstract]  
Right of use asset (in prepaid expenses and other assets) $ 5,300
Lease liability (in accounts payable, accrued expenses and other liabilities) (5,300)
PAC Portfolio Acquisition [Member]  
Asset Acquisition, Purchase Price Allocation [Abstract]  
Real estate assets 593,039
Acquisition-related intangible assets (in deferred financing and leasing costs) 61,126
Right of use asset (in prepaid expenses and other assets) 8,440
Mortgages and notes payable (403,000)
Debt issuance costs (in mortgages and notes payable) 3,473
Acquisition-related intangible liabilities (in accounts payable, accrued expenses and other liabilities) (7,174)
Lease liability (in accounts payable, accrued expenses and other liabilities) $ (5,310)
v3.22.0.1
Real Estate Assets (Details)
$ in Thousands
3 Months Ended 12 Months Ended
Jun. 30, 2021
USD ($)
parcel
Dec. 31, 2021
USD ($)
ft²
numberOfLoans
numberOfOfficeBuildings
numberOfBuildings
Dec. 31, 2020
USD ($)
a
numberOfBuildings
parcel
shares
Dec. 31, 2019
USD ($)
ft²
a
parcel
numberOfBuildings
Acquisitions [Abstract]        
Rentable square feet of commercial real estate (in square feet) | ft²   28,000,000    
Percentage of equity interest in joint ventures, maximum   50.00%    
Dispositions [Abstract]        
Gains on disposition of property   $ 174,059 $ 215,897 $ 39,517
Impairments [Abstract]        
Impairments of real estate assets   0 1,778 5,849
PAC Portfolio Acquisition [Member]        
Acquisitions [Abstract]        
Purchase price of acquisition   653,600    
Capitalized acquisition costs   $ 4,500    
Number of loans assumed in acquisition | numberOfLoans   4    
150 Fayetteville Asset [Member]        
Acquisitions [Abstract]        
Rentable square feet of commercial real estate (in square feet) | ft²   560,000    
CAPTRUST Towers Asset [Member]        
Acquisitions [Abstract]        
Rentable square feet of commercial real estate (in square feet) | ft²   300,000    
Capitol Towers Asset [Member]        
Acquisitions [Abstract]        
Rentable square feet of commercial real estate (in square feet) | ft²   479,000    
Morrocroft Centre Asset [Member]        
Acquisitions [Abstract]        
Rentable square feet of commercial real estate (in square feet) | ft²   291,000    
Nashville TN Land Acquisitions [Member]        
Acquisitions [Abstract]        
Purchase price of acquisition $ 16,000 $ 74,100    
Number of development parcels acquired (in parcels) | parcel 1      
Forum Portfolio Acquisition [Member]        
Acquisitions [Abstract]        
Purchase price of acquisition   $ 131,300    
Percentage of partner's interest in asset acquired (in hundredths)   75.00%    
Number of office properties acquired | numberOfOfficeBuildings   5    
Rentable square feet of commercial real estate (in square feet) | ft²   636,000    
Percentage of equity interest in joint ventures, maximum   25.00%    
2020 Land Acquisitions [Member]        
Acquisitions [Abstract]        
Purchase price of acquisition     $ 8,500  
Number of development parcels acquired (in parcels) | parcel     2  
Undeveloped land suitable for future development (in acres) | a     1  
Issuance of Common Units in acquisition (in units) | shares     118,592  
Submarket Acquisition [Member]        
Acquisitions [Abstract]        
Purchase price of acquisition       $ 399,100
Rentable square feet of commercial real estate (in square feet) | ft²       841,000
2019 Land Acquisitions [Member]        
Acquisitions [Abstract]        
Purchase price of acquisition       $ 12,400
Number of development parcels acquired (in parcels) | parcel       4
Undeveloped land suitable for future development (in acres) | a       10
2021 Dispositions [Member]        
Dispositions [Abstract]        
Number of buildings sold | numberOfBuildings   13    
Sale price of disposition   $ 384,600    
Closing credits excluded for unfunded building and/or tenant improvements   6,900    
Gains on disposition of property   $ 172,800    
2020 Dispositions [Member]        
Dispositions [Abstract]        
Number of buildings sold | numberOfBuildings     52  
Sale price of disposition     $ 494,200  
Closing credits excluded for unfunded building and/or tenant improvements     5,700  
Gains on disposition of property     215,500  
2019 Dispositions [Member]        
Dispositions [Abstract]        
Number of buildings sold | numberOfBuildings       6
Sale price of disposition       $ 136,400
Gains on disposition of property       39,500
2016 Land Disposition [Member]        
Dispositions [Abstract]        
Gains on disposition of property     400  
2020 Impairments [Member]        
Impairments [Abstract]        
Impairments of real estate assets     $ 1,800  
2019 Impairments [Member]        
Impairments [Abstract]        
Impairments of real estate assets       $ 5,800
v3.22.0.1
Investments In and Advances To Affiliates (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2021
USD ($)
ft²
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Unconsolidated Affiliates:      
Percentage of equity interest in joint ventures, maximum 50.00%    
Difference between cost of investments and the net book value of underlying net assets $ 600 $ 600  
Rentable square feet of office property under development (in sq feet) | ft² 600,000    
Development, management and leasing fees recognized from unconsolidated affiliates $ 1,600 1,000 $ 500
Receivables from management and leasing fees   200  
Consolidated Affiliates:      
Gains on disposition of property $ 174,059 $ 215,897 $ 39,517
Plaza Colonnade, Tenant-in-Common [Member]      
Unconsolidated Affiliates:      
Percentage of equity interest in joint ventures, maximum 50.00%    
Brand/HRLP 2827 Peachtree LLC      
Unconsolidated Affiliates:      
Percentage of equity interest in joint ventures, maximum 50.00%    
Rentable square feet of office property under development (in sq feet) | ft² 135,000    
Total anticipated development costs $ 79,000    
Contribution of cash to acquire interest in joint venture 13,300    
Cash funded to acquire interest in joint venture 6,100    
Partner's contribution of property to acquire interest in joint venture 7,700    
Contribution of cash from affiliate $ 5,600    
Partner's percentage of equity interest in joint venture (in hundredths) 50.00%    
Advance to affiliate $ 49,600    
Term of optional extension 1 year    
Interest rate, basis spread (in hundredths) 3.00%    
Amount of loan funded to affiliate $ 0    
Risk of loss for variable interest entity $ 6,100    
Brand/HRLP 2827 Peachtree LLC | London Interbank Offered Rate (LIBOR) [Member]      
Unconsolidated Affiliates:      
Interest rate basis LIBOR    
Kessinger/Hunter & Company, LC [Member]      
Unconsolidated Affiliates:      
Percentage of equity interest in joint ventures, maximum 26.50%    
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 $ 31,100    
Sale price of disposition 3,000    
Gains on disposition of property $ 1,300    
v3.22.0.1
Investments In and Advances To Affiliates Consolidated Variable Interest Entity (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
ft²
Dec. 31, 2021
USD ($)
ft²
Dec. 31, 2020
USD ($)
Consolidated Variable Interest Entity [Abstract]      
Rentable square feet of office property under development (in sq feet) | ft²   600,000  
Assets and liabilities of consolidated variable interest entity [Abstract]      
Net real estate assets   $ 5,032,033 $ 4,421,285
Development in-process $ 172,706 6,890 259,681
Cash and cash equivalents $ 9,505 23,152 109,322
Accrued straight-line rents receivable   268,324 259,381
Deferred leasing costs, net   258,902 209,329
Prepaid expenses and other assets   78,551 62,885
Accounts payable, accrued expenses and other liabilities   $ 294,976 268,727
Ownership Percentage [Member]      
Consolidated Variable Interest Entity [Abstract]      
Partner's interest in consolidated joint venture (in hundredths)   50.00%  
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 joint venture $ 20,000    
Percentage of equity interest in consolidated affiliates 80.00%    
Partner's contribution of property to acquire interest in joint venture $ 5,000    
Advance to affiliate $ 46,300    
Interest rate, basis spread (in hundredths) 2.50%    
Amount of loan funded to affiliate   $ 28,500  
Assets and liabilities of consolidated variable interest entity [Abstract]      
Net real estate assets   53,191 0
Development in-process   0 46,873
Cash and cash equivalents   389 0
Accrued straight-line rents receivable   121 0
Deferred leasing costs, net   1,519 196
Prepaid expenses and other assets   163 75
Accounts payable, accrued expenses and other liabilities   $ 646 $ 2,693
Consolidated Variable Interest Entity [Member] | Ownership Percentage [Member]      
Consolidated Variable Interest Entity [Abstract]      
Partner's interest in consolidated joint venture (in hundredths) 20.00% 20.00%  
London Interbank Offered Rate (LIBOR) [Member] | Consolidated Variable Interest Entity [Member]      
Consolidated Variable Interest Entity [Abstract]      
Interest rate basis LIBOR    
v3.22.0.1
Intangible Assets and Below Market Lease Liabilities (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Intangible assets and below market lease liabilities, net [Abstract]      
Deferred leasing costs, gross $ 402,013 $ 361,027  
Deferred leasing costs, accumulated amortization (143,111) (151,698)  
Deferred leasing costs, net/Total scheduled future amortization of intangible assets 258,902 209,329  
Acquisition-related below market lease liabilities, gross 57,703 63,748  
Acquisition-related below market lease liabilities, accumulated amortization (28,978) (37,838)  
Acquisition-related below market lease liabilities, net 28,725 25,910  
Amortization of intangible assets and below market lease liabilities      
Acquired intangible assets (amortized in rental and other revenue) 13,824    
Acquired intangible assets (amortized in depreciation and amortization) 84,298    
Assumed below market lease liabilities (amortized in rental and other revenue) (8,535)    
Deferred Leasing Costs and Acquisition-Related Intangible Assets (in Depreciation and Amortization) [Member]      
Intangible assets and below market lease liabilities, net [Abstract]      
Deferred leasing costs, net/Total scheduled future amortization of intangible assets 232,621    
Amortization of intangible assets and below market lease liabilities      
Amortization of intangible assets 38,173 34,401 $ 37,386
Lease Incentives [Member]      
Intangible assets and below market lease liabilities, net [Abstract]      
Deferred leasing costs, net/Total scheduled future amortization of intangible assets 10,096    
Amortization of intangible assets and below market lease liabilities      
Amortization of intangible assets 1,885 1,847 4,281
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 16,185    
Amortization of intangible assets and below market lease liabilities      
Amortization of intangible assets 1,932 1,137 1,290
Acquisition-Related Intangible Assets (in Rental Property and Other Expenses) [Member]      
Amortization of intangible assets and below market lease liabilities      
Amortization of intangible assets 0 510 557
Acquisition-Related Below Market Lease Liabilities [Member]      
Intangible assets and below market lease liabilities, net [Abstract]      
Acquisition-related below market lease liabilities, net 28,725    
Amortization of intangible assets and below market lease liabilities      
Amortization of acquisition-related below market lease liabilities $ (5,720) $ (6,031) $ (6,633)
v3.22.0.1
Intangible Assets and Below Market Lease Liabilities - Scheduled Future Amortization (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Scheduled future amortization of intangible assets [Abstract]    
Deferred leasing costs, net/Total scheduled future amortization of intangible assets $ 258,902 $ 209,329
Scheduled future amortization of below market lease liabilites [Abstract]    
Total scheduled future amortization of below market lease liabilities (28,725) $ (25,910)
Deferred Leasing Costs and Acquisition-Related Intangible Assets (in Depreciation and Amortization) [Member]    
Scheduled future amortization of intangible assets [Abstract]    
2022 41,823  
2023 36,891  
2024 32,716  
2025 25,856  
2026 21,992  
Thereafter 73,343  
Deferred leasing costs, net/Total scheduled future amortization of intangible assets $ 232,621  
Weighted average remaining amortization periods for intangible assets and liabilities [Abstract]    
Intangible assets, weighted average useful life (in years) 8 years 2 months 12 days  
Acquired intangible assets, weighted average useful life (in years) 7 years 1 month 6 days  
Lease Incentives [Member]    
Scheduled future amortization of intangible assets [Abstract]    
2022 $ 1,534  
2023 1,428  
2024 1,284  
2025 1,209  
2026 1,084  
Thereafter 3,557  
Deferred leasing costs, net/Total scheduled future amortization of intangible assets $ 10,096  
Weighted average remaining amortization periods for intangible assets and liabilities [Abstract]    
Intangible assets, weighted average useful life (in years) 8 years 6 months  
Acquisition-Related Intangible Assets (in Rental and Other Revenue) [Member]    
Scheduled future amortization of intangible assets [Abstract]    
2022 $ 2,986  
2023 2,829  
2024 2,573  
2025 1,667  
2026 1,336  
Thereafter 4,794  
Deferred leasing costs, net/Total scheduled future amortization of intangible assets $ 16,185  
Weighted average remaining amortization periods for intangible assets and liabilities [Abstract]    
Intangible assets, weighted average useful life (in years) 7 years 7 months 6 days  
Acquired intangible assets, weighted average useful life (in years) 7 years 1 month 6 days  
Acquisition-Related Below Market Lease Liabilities [Member]    
Scheduled future amortization of below market lease liabilites [Abstract]    
2022 $ (5,294)  
2023 (4,824)  
2024 (4,111)  
2025 (2,594)  
2026 (2,294)  
Thereafter (9,608)  
Total scheduled future amortization of below market lease liabilities $ (28,725)  
Weighted average remaining amortization periods for intangible assets and liabilities [Abstract]    
Below market lease liabilities, weighted average useful life (in years) 8 years 3 months 18 days  
Assumed finite-lived below market lease liabilities, weighted average useful life (in years) 8 years 1 month 6 days  
v3.22.0.1
Mortgages and Notes Payable (Details)
12 Months Ended
Dec. 31, 2021
USD ($)
numberOfBuildings
extension
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Jan. 28, 2022
USD ($)
Debt Instrument [Line Items]        
Mortgages and notes payable, net $ 2,788,915,000 $ 2,470,021,000    
Less-unamortized debt issuance costs (15,207,000) (13,981,000)    
Scheduled future principal payments [Abstract]        
2022 206,524,000      
2023 257,059,000      
2024 7,365,000      
2025 77,176,000      
2026 6,911,000      
Thereafter 2,249,087,000      
Less-unamortized debt issuance costs (15,207,000) (13,981,000)    
Mortgages and notes payable, net 2,788,915,000 2,470,021,000    
Gains/(losses) on debt extinguishment $ (286,000) (3,674,000) $ (640,000)  
Lender covenant compliance to accelerate outstanding borrowings 51.00%      
Cross-default minimum threshold $ 35,000,000      
Holders covenant compliance of bonds 25.00%      
Uncured covenant compliance default period 60 days      
Maximum liquidity requirements 1 year      
Capitalized Interest [Abstract]        
Capitalized Interest $ 9,600,000 $ 8,300,000 $ 5,600,000  
3.20% (3.363% effective rate) Notes due 2021 [Member]        
Scheduled future principal payments [Abstract]        
Gains/(losses) on debt extinguishment (100,000)      
Principal amount of debt 150,000,000      
Stated interest rate (in hundredths)   3.20%    
Early repayment of debt   $ 150,000,000    
Purchase price of debt (in hundredths)   101.908%    
3.625% (3.752% effective rate) Notes due 2023 [Member]        
Scheduled future principal payments [Abstract]        
Principal amount of debt 250,000,000      
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]        
Debt issuance costs     $ 3,100,000  
Principal amount of debt     $ 350,000,000  
Stated interest rate (in hundredths)     4.20%  
Original issuance discount     $ 1,000,000  
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]        
Debt issuance costs     $ 3,400,000  
Principal amount of debt     $ 400,000,000  
Stated interest rate (in hundredths)     3.05%  
Original issuance discount     $ 1,000,000  
2.600% (2.645% effective rate) Notes due 2031 [Member]        
Debt Instrument [Line Items]        
Current interest rate (in hundredths)   2.645%    
Scheduled future principal payments [Abstract]        
Debt issuance costs   $ 3,400,000    
Principal amount of debt   $ 400,000,000    
Stated interest rate (in hundredths)   2.60%    
Original issuance discount   $ 1,600,000    
Revolving Credit Facility due 2022 [Member]        
Scheduled future principal payments [Abstract]        
Maximum borrowing capacity on revolving credit facility 750,000,000 $ 600,000,000    
Additional borrowing capacity on revolving credit facility $ 550,000,000      
Number of additional maturity extensions | extension 2      
Term of optional extensions 6 months      
Interest rate, basis spread (in hundredths) 0.90%      
Annual facility fee (in hundredths) 0.20%      
Debt issuance costs $ 4,800,000      
Gains/(losses) on debt extinguishment (100,000)      
Amount outstanding on revolving credit facility 70,000,000      
Outstanding letters of credit on revolving credit facility 100,000      
Unused borrowing capacity on revolving credit facility $ 679,900,000      
Revolving Credit Facility due 2022 [Member] | London Interbank Offered Rate (LIBOR) [Member]        
Scheduled future principal payments [Abstract]        
Interest rate LIBOR      
PAC Portfolio Acquisition [Member]        
Debt Instrument [Line Items]        
Current interest rate (in hundredths)   3.54%    
Scheduled future principal payments [Abstract]        
Debt issuance costs $ 3,500,000      
Number of loans assumed in acquisition | numberOfBuildings 4      
Principal amount of debt $ 403,000,000      
Term of debt instrument (in years) 10 years 8 months 12 days      
Unsecured Bridge Facility Due 2022 [Member]        
Scheduled future principal payments [Abstract]        
Maximum borrowing capacity on revolving credit facility $ 200,000,000      
Interest rate, basis spread (in hundredths) 0.85%      
Annual facility fee (in hundredths) 0.20%      
Debt issuance costs $ 1,000,000      
Gains/(losses) on debt extinguishment $ (200,000)      
Term of debt instrument (in years) 6 months      
Unsecured Bridge Facility Due 2022 [Member] | London Interbank Offered Rate (LIBOR) [Member]        
Scheduled future principal payments [Abstract]        
Interest rate LIBOR      
Variable Rate Term Loan due 2022 [Member]        
Scheduled future principal payments [Abstract]        
Interest rate, basis spread (in hundredths)   1.10%    
Gains/(losses) on debt extinguishment   $ (3,700,000) (300,000)  
Principal amount of debt     200,000,000  
Early repayment of debt   $ 100,000,000 $ 100,000,000  
Variable Rate Term Loan due 2022 [Member] | London Interbank Offered Rate (LIBOR) [Member]        
Scheduled future principal payments [Abstract]        
Interest rate basis   LIBOR    
Variable Rate Term Loan due 2020 [Member]        
Scheduled future principal payments [Abstract]        
Interest rate, basis spread (in hundredths)     1.10%  
Gains/(losses) on debt extinguishment     $ (400,000)  
Term of debt instrument (in years)     7 years  
Early repayment of debt     $ 225,000,000  
Variable Rate Term Loan due 2020 [Member] | London Interbank Offered Rate (LIBOR) [Member]        
Scheduled future principal payments [Abstract]        
Interest rate basis     LIBOR  
Secured indebtedness [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net $ 491,942,000 $ 93,350,000    
Aggregate undepreciated book value of secured real estate assets 727,800,000      
Annual repayments through principal amortization 3,800,000      
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net 491,942,000 93,350,000    
Secured indebtedness [Member] | 4.27% (3.61% effective rate) mortgage loan due 2028 [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net 115,731,000 0    
Unamortized premium 3,900,000      
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net 115,731,000 0    
Secured indebtedness [Member] | 4.0% Mortgage Loan Due 2029 [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net 91,318,000 93,350,000    
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net 91,318,000 93,350,000    
Secured indebtedness [Member] | 3.61% (3.19% effective rate) mortgage loan due 2029 [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net 84,973,000 0    
Unamortized premium 2,300,000      
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net 84,973,000 0    
Secured indebtedness [Member] | 3.40% (3.50% effective rate) mortgage loan due 2033 [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net 69,422,000 0    
Unamortized discount 600,000      
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net 69,422,000 0    
Secured indebtedness [Member] | 4.60% (3.73% effective rate) mortgage loan due 2037 [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net 130,498,000 0    
Unamortized premium 10,000,000      
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net 130,498,000 0    
Unsecured indebtedness [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net 2,312,180,000 2,390,652,000    
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net 2,312,180,000 2,390,652,000    
Unsecured indebtedness [Member] | 3.20% (3.363% effective rate) Notes due 2021 [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net 0 149,901,000    
Unamortized discount   100,000    
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net 0 149,901,000    
Unsecured indebtedness [Member] | 3.625% (3.752% effective rate) Notes due 2023 [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net 249,726,000 249,464,000    
Unamortized discount 300,000 500,000    
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net 249,726,000 249,464,000    
Unsecured indebtedness [Member] | 3.875% (4.038% effective rate) Notes due 2027 [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net 297,934,000 297,534,000    
Unamortized discount 2,100,000 2,500,000    
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net 297,934,000 297,534,000    
Unsecured indebtedness [Member] | 4.125% (4.271% effective rate) Notes due 2028 [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net 347,449,000 347,035,000    
Unamortized discount 2,600,000 3,000,000    
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net 347,449,000 347,035,000    
Unsecured indebtedness [Member] | 4.20% (4.234% effective rate) Notes due 2029 [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net 349,288,000 349,189,000    
Unamortized discount 700,000 800,000    
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net 349,288,000 349,189,000    
Unsecured indebtedness [Member] | 3.050% (3.079% effective rate) Notes due 2030 [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net 399,204,000 399,106,000    
Unamortized discount 800,000 900,000    
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net 399,204,000 399,106,000    
Unsecured indebtedness [Member] | 2.600% (2.645% effective rate) Notes due 2031 [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net 398,579,000 398,423,000    
Unamortized discount 1,400,000 1,600,000    
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net 398,579,000 398,423,000    
Unsecured indebtedness [Member] | Variable Rate Term Loan (2) due 2022 [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net $ 200,000,000 200,000,000    
Interest rate under derivative instruments (in hundredths) 2.79%      
Current interest rate (in hundredths) 1.20%      
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net $ 200,000,000 200,000,000    
Unsecured indebtedness [Member] | Revolving Credit Facility due 2022 [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net $ 70,000,000 0    
Current interest rate (in hundredths) 1.00%      
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net $ 70,000,000 $ 0    
Subsequent Event [Member] | Revolving Credit Facility due 2022 [Member]        
Scheduled future principal payments [Abstract]        
Amount outstanding on revolving credit facility       $ 70,000,000
Outstanding letters of credit on revolving credit facility       100,000
Unused borrowing capacity on revolving credit facility       $ 679,900,000
v3.22.0.1
Derivative Financial Instruments (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Sep. 30, 2019
Mar. 31, 2019
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Derivatives, Fair Value [Line Items]              
Expected increase/(decrease) to interest expense     $ (200)        
Derivatives designated as cash flow hedges in accounts payable, accrued expenses and other liabilities [Abstract]              
Interest rate swaps     60 $ 846      
Amount of unrealized losses recognized in accumulated other comprehensive income/(loss) on derivatives (effective portion) [Abstract]              
Interest rate swaps/Unrealized loss reclassified to interest expense     (19) (1,238) $ (9,134)    
Amount of (gains)/losses reclassified out of accumulated other comprehensive income/(loss) into interest expense (effective portion) [Abstract]              
Interest rate swaps     $ 508 $ 247 (1,250)    
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%    
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%    
Forward Starting Swaps [Member]              
Derivatives, Fair Value [Line Items]              
Amount of borrowings outstanding, subject to swaps         $ 150,000 $ 225,000  
Underlying treasury rate term (in years)         10 years 10 years  
Weighted average interest rate under derivative instruments (in hundredths)         1.87% 2.86%  
Amount of unrealized losses recognized in accumulated other comprehensive income/(loss) on derivatives (effective portion) [Abstract]              
Interest rate swaps/Unrealized loss reclassified to interest expense $ (6,600) $ (5,100)          
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%    
v3.22.0.1
Commitments and Contingencies (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Lease and Contractual Commitments [Abstract]    
Lease and contractual commitments $ 241.9  
Accrued amount of lease and contractual commitments 55.5  
Asset Acquisition Contingent Consideration [Member]    
Contingent Consideration [Abstract]    
Asset acquisition, contingent consideration liability $ 0.8 $ 0.8
v3.22.0.1
Noncontrolling Interests (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Noncontrolling Interests in the Operating Partnership [Roll Forward]      
Noncontrolling interests in the Operating Partnership, beginning balance $ 112,499    
Adjustment of noncontrolling interests in the Operating Partnership to fair value 11,461 $ (30,617) $ 29,557
Conversions of Common Units to Common Stock (15,076) (145) (663)
Net income attributable to noncontrolling interests in the Operating Partnership 8,321 9,338 3,551
Distributions to noncontrolling interests in the Operating Partnership (5,516) (5,456) (5,189)
Noncontrolling interests in the Operating Partnership, ending balance 111,689 112,499  
Net Income Available for Common Stockholders and Transfers From Noncontrolling Interests in the Operating Partnership      
Net income available for common stockholders $ 310,791 344,914 134,430
Ownership Percentage [Member]      
Noncontrolling Interests in Consolidated Affiliates      
Consolidated joint venture, partner's interest (in hundredths) 50.00%    
Highwoods Properties, Inc. [Member]      
Noncontrolling Interests in the Operating Partnership [Roll Forward]      
Noncontrolling interests in the Operating Partnership, beginning balance $ 112,499 133,216  
Adjustment of noncontrolling interests in the Operating Partnership to fair value 11,461 (30,617)  
Isssuances of Common Units 0 6,163  
Conversions of Common Units to Common Stock (15,076) (145)  
Net income attributable to noncontrolling interests in the Operating Partnership 8,321 9,338  
Distributions to noncontrolling interests in the Operating Partnership (5,516) (5,456)  
Noncontrolling interests in the Operating Partnership, ending balance 111,689 112,499 133,216
Net Income Available for Common Stockholders and Transfers From Noncontrolling Interests in the Operating Partnership      
Net income available for common stockholders 310,791 344,914 134,430
Increase in additional paid in capital from conversions of Common Units to Common Stock 15,076 145 663
Issuances of Common Units 0 (6,163) 0
Change from net income available for common stockholders and transfers from noncontrolling interests $ 325,867 $ 338,896 $ 135,093
Variable Interest Entity, Primary Beneficiary [Member] | Ownership Percentage [Member]      
Noncontrolling Interests in Consolidated Affiliates      
Consolidated joint venture, partner's interest (in hundredths) 20.00%   20.00%
v3.22.0.1
Disclosure About Fair Value of Financial Instruments - Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Jun. 30, 2020
Dec. 31, 2019
Dec. 31, 2018
Assets:          
Mortgages and notes receivable, at fair value $ 1,227 $ 1,341      
Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets) 2,866 2,573      
Total Assets 4,093 3,914      
Liabilities:          
Mortgages and notes payable, net, at fair value 2,907,492 2,639,163      
Interest rate swaps (in accounts payable, accrued expenses and other liabilities) 60 846      
Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities) 2,866 2,573   $ 2,345 $ 1,849
Total Liabilities 2,910,418 2,642,582      
Level 1 [Member]          
Assets:          
Mortgages and notes receivable, at fair value 0 0      
Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets) 2,866 2,573      
Total Assets 2,866 2,573      
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) 2,866 2,573      
Total Liabilities 2,866 2,573      
Level 2 [Member]          
Assets:          
Mortgages and notes receivable, at fair value 1,227 1,341      
Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets) 0 0      
Total Assets 1,227 1,341      
Liabilities:          
Mortgages and notes payable, net, at fair value 2,907,492 2,639,163      
Interest rate swaps (in accounts payable, accrued expenses and other liabilities) 60 846      
Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities) 0 0      
Total Liabilities 2,907,552 2,640,009      
Level 3 [Member]          
Liabilities:          
Impaired real estate assets     $ 2,100    
Highwoods Properties, Inc. [Member]          
Assets:          
Noncontrolling Interests in the Operating Partnership 111,689 112,499      
Highwoods Properties, Inc. [Member] | Level 1 [Member]          
Assets:          
Noncontrolling Interests in the Operating Partnership 111,689 112,499      
Highwoods Properties, Inc. [Member] | Level 2 [Member]          
Assets:          
Noncontrolling Interests in the Operating Partnership $ 0 $ 0      
v3.22.0.1
Equity (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Class of Stock [Line Items]      
Net proceeds of Common Stock sold during the period $ 21,664 $ 2,196 $ 298
Number of trading days preceeding Redemption Notice Date (in days) 10 days    
Dividends, Common Stock [Abstract]      
Ordinary dividend $ 1.87 $ 1.65 $ 1.64
Capital gains 0.09 0.25 0.13
Return of capital 0 0.02 0.13
Total taxability of dividends per share $ 1.96 $ 1.92 1.90
Dividends, Preferred Stock [Abstract]      
Number of shares outstanding, Preferred Stock (in shares) 28,821 28,826  
Carrying value, Preferred Stock $ 28,821 $ 28,826  
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 82.38 74.96 79.90
Capital gains 3.87 11.29 6.35
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 95,100,000    
Dividends declared per share of Common Stock (in dollars per share) $ 1.96 1.92 1.90
Highwoods Properties, Inc. [Member] | ATM Equity Offering [Member]      
Class of Stock [Line Items]      
Net proceeds of Common Stock sold during the period $ 20,800    
Average price of Common Stock sold during the period $ 46.23    
Highwoods Properties, Inc. [Member] | Series A Cumulative Redeemable Preferred Shares [Member]      
Dividends, Preferred Stock [Abstract]      
Total taxability of dividends per share 86.25 86.25 86.25
Annual dividends payable per share, Preferred Stock/Unit (in dollars per share) $ 86.25 $ 86.25 86.25
Highwoods Properties, Inc. [Member] | Maximum [Member] | ATM Equity Offering [Member]      
Class of Stock [Line Items]      
Net proceeds of Common Stock sold during the period   $ 300,000  
Number of Common Stock sold during the period (in shares) 456,273    
Highwoods Realty Limited Partnership [Member]      
Class of Stock [Line Items]      
Distributions declared per share of Common Unit (in dollars per share) $ 1.96 $ 1.92 1.90
Dividends, Preferred Stock [Abstract]      
Number of units outstanding, Preferred Units (in shares) 28,821 28,826  
Carrying value, Preferred units $ 28,821 $ 28,826  
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
v3.22.0.1
Employee Benefit Plans (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Retirement Benefits [Abstract]      
Outstanding stock options and warrants 527,067 552,373  
Possible future share issuance authorized under equity incentive plans 2,999,100 1,926,324  
Total shares reserved for future issuance 3,526,167 2,478,697  
Possible future share issuance authorized under equity incentive plan restricted stock 1,000,000    
Stock-based compensation expense $ 8,646 $ 6,210 $ 7,180
Total unrecognized stock-based compensation costs $ 3,400    
Weighted average remaining term of vesting periods (in years) 1 year 10 months 24 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 $ 1,300 1,400 1,500
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 $ 2,866 2,573  
Non Qualified Deferred Compensation Obligation Fair Value Disclosure [Roll Forward]      
Beginning deferred compensation liability 2,573 2,345 1,849
Mark to market adjustment to deferred compensation (in general and administrative expenses) 293 228 496
Ending deferred compensation liability $ 2,866 $ 2,573 $ 2,345
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 38,460 47,208 38,618
Discount percentage on newly issues shares 15.00%    
Discount on newly issued shares expensed as additional compensation $ 200 $ 300 $ 300
Minimum [Member]      
Retirement Benefits [Abstract]      
Officer cash bonus target 25.00%    
Officer cash bonus performance factor 0.00%    
Non officer management cash bonus target 5.00%    
Maximum [Member]      
Retirement Benefits [Abstract]      
Officer cash bonus target 130.00%    
Officer cash bonus performance factor 200.00%    
Non officer management cash bonus target 30.00%    
2017 Plan [Member]      
Restricted Stock Activity Rollforward [Abstract]      
Forfeited (in shares) (18,484)    
2016 Plan [Member]      
Restricted Stock Activity Rollforward [Abstract]      
Forfeited (in shares)   (46,852)  
2015 Plan [Member]      
Restricted Stock Activity Rollforward [Abstract]      
Forfeited (in shares)     (9,521)
Stock Options [Member]      
Stock Option Activity Rollforward [Abstract]      
Balance of options outstanding (in shares) 537,373 584,902 596,518
Options exercised (in shares) (25,306) (42,163) (9,026)
Options forfeited (in shares)   (5,366) (2,590)
Balance of options outstanding (in shares) 512,067 537,373 584,902
Stock Option Activity, Weighted Average Exercise Price Rollforward [Abstract]      
Options outstanding, weighted average exercise price (in dollars per share) $ 46.07 $ 45.75 $ 45.67
Options exercised, weighted average exercise price (in dollars per share) 43.76 41.10 39.53
Options forfeited, weighted average exercise price (in dollars per share)   50.82 48.79
Options outstanding, weighted average exercise price (in dollars per share) $ 46.18 $ 46.07 $ 45.75
Options exercisable (in shares) 512,067    
Weighted average exercise price (in dollars per share) $ 46.18    
Weighted average remaining life (in years) 4 years    
Intrinsic value $ 600    
Amount of exercisable options with prices higher than the market price of Company Common Stock 279,549    
Cash received or receivable from options exercised $ 1,100 $ 1,900 $ 400
Total instrinsic value of options exercised 100 400 100
Total intrinsic value of options outstanding $ 600 $ 100 $ 2,400
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    
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) 209,190 218,151 191,239
Awarded and issued (in shares) 103,120 83,116 103,590
Vested (in shares) (89,264) (88,326) (73,036)
Forfeited (in shares) (3,327) (3,751) (3,642)
Balance of restricted stock outstanding (in shares) 219,719 209,190 218,151
Restricted Stock Activity, Weighted Average Grant Date Fair Value Rollforward [Abstract]      
Restricted stock outstanding, weighted average grant date fair value (in dollars per share) $ 45.34 $ 45.73 $ 45.62
Awarded and issued, weighted average grant date fair value (in dollars per share) 39.99 44.88 45.98
Vested, weighted average grant date fair value (in dollars per share) 45.90 45.86 45.79
Forfeited, weighted average grant date fair value (in dollars per share) 43.13 45.78 46.07
Restricted stock outstanding, weighted average grant date fair value (in dollars per share) 42.63 45.34 45.73
Grant date fair value of restricted stock (in dollars per share) $ 39.99 $ 44.88 $ 45.98
Fair value at grant date of restricted stock issued $ 4,100 $ 3,700 $ 4,800
Vesting date fair value of restricted stock $ 3,600 $ 3,900 $ 3,300
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 Restricted Stock Granted:      
Risk free interest rate 0.30% 0.90% 2.40%
Common stock dividend yield 4.80% 3.90% 4.40%
Expected volatility rate 26.80% 20.40% 27.30%
Dividends paid for previous year 1 year    
Restricted Stock Activity Rollforward [Abstract]      
Balance of restricted stock outstanding (in shares) 225,184 208,848 180,094
Awarded and issued (in shares) 81,464 66,188 87,344
Vested (in shares) (55,452)   (45,901)
Forfeited (in shares) (21,904) (49,852) (12,689)
Balance of restricted stock outstanding (in shares) 229,292 225,184 208,848
Restricted Stock Activity, Weighted Average Grant Date Fair Value Rollforward [Abstract]      
Restricted stock outstanding, weighted average grant date fair value (in dollars per share) $ 39.53 $ 42.22 $ 43.34
Awarded and issued, weighted average grant date fair value (in dollars per share) 36.41 38.31 39.42
Vested, weighted average grant date fair value (in dollars per share) 43.01   43.68
Forfeited, weighted average grant date fair value (in dollars per share) 42.33 51.93 43.58
Restricted stock outstanding, weighted average grant date fair value (in dollars per share) $ 38.00 $ 39.53 42.22
Company total return, total return-based restricted stock 100.00%    
Vesting percentage, total return-based restricted stock 100.00% 75.00%  
Grant date fair value of restricted stock (in dollars per share) $ 36.41 $ 38.31 $ 39.42
Fair value at grant date of restricted stock issued $ 2,900 $ 2,500 $ 3,400
Vesting date fair value of restricted stock $ 2,200 $ 0 $ 2,100
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) $ 36.41 $ 38.31 $ 39.42
Grant date fair value of restricted stock (in dollars per share) $ 36.41 $ 38.31 $ 39.42
v3.22.0.1
Accumulated Other Comprehensive Income/(Loss) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Accumulated Other Comprehensive Income/(Loss) Calculation [Roll Forward]    
Beginning balance $ (1,462)  
Ending balance (973) $ (1,462)
Cash Flow Hedges [Member]    
Accumulated Other Comprehensive Income/(Loss) Calculation [Roll Forward]    
Beginning balance (1,462) (471)
Unrealized losses on cash flow hedges (19) (1,238)
Amortization reclassified out of accumulated other comprehensive income/(loss) $ 508 247
Ending balance   $ (1,462)
v3.22.0.1
Real Estate and Other Assets Held For Sale (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Assets, held for sale [Abstract]    
Land $ 0 $ 2,612
Building and tenant improvements 0 12,238
Land held for development 3,482 0
Less accumulated depreciation 0 (3,577)
Net real estate assets 3,482 11,273
Deferred leasing costs, net 0 87
Prepaid expenses and other assets 36 0
Real estate and other assets, net, held for sale $ 3,518 $ 11,360
v3.22.0.1
Earnings Per Share and Per Unit (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Earnings per Common Share/Unit - basic: [Abstract]      
Net income $ 323,310 $ 357,914 $ 141,683
Net (income) attributable to noncontrolling interests in the Operating Partnership (8,321) (9,338) (3,551)
Net (income) attributable to noncontrolling interests in consolidated affiliates (1,712) (1,174) (1,214)
Dividends on Preferred Stock (2,486) (2,488) (2,488)
Net income available for common stockholders $ 310,791 $ 344,914 $ 134,430
Denominator:      
Denominator for basic earnings per Common Share - weighted average shares (in shares) 104,232 103,876 103,692
Earnings per Common Share - basic:      
Net income available for common stockholders (in dollars per share) $ 2.98 $ 3.32 $ 1.30
Earnings per Common Share/Unit - diluted: [Abstract]      
Net income $ 323,310 $ 357,914 $ 141,683
Net (income) attributable to noncontrolling interests in consolidated affiliates (1,712) (1,174) (1,214)
Dividends on Preferred Stock (2,486) (2,488) (2,488)
Net income available for common stockholders before net (income) attributable to noncontrolling interests in the Operating Partnership $ 319,112 $ 354,252 $ 137,981
Denominator:      
Denominator for basic earnings per Common Share - weighted average shares (in shares) 104,232 103,876 103,692
Stock options using the treasury method 18 8 22
Noncontrolling interests Common Units 2,811 2,830 2,731
Denominator for diluted earnings per Common Share - adjusted weighted average shares and assumed conversions (in shares) 107,061 106,714 106,445
Earnings per Common Share - diluted:      
Net income available for common stockholders (in dollars per share) $ 2.98 $ 3.32 $ 1.30
Highwoods Realty Limited Partnership [Member]      
Earnings per Common Share/Unit - basic: [Abstract]      
Net income $ 323,310 $ 357,914 $ 141,683
Net (income) attributable to noncontrolling interests in consolidated affiliates (1,712) (1,174) (1,214)
Distributions on Preferred Units (2,486) (2,488) (2,488)
Net income available for common unitholders $ 319,112 $ 354,252 $ 137,981
Denominator:      
Denominator for basic earnings per Common Unit - weighted average units (in shares) 106,634 106,297 106,014
Earnings per Common Unit - basic:      
Net income available for common unitholders (in dollars per share) $ 2.99 $ 3.33 $ 1.30
Earnings per Common Share/Unit - diluted: [Abstract]      
Net income $ 323,310 $ 357,914 $ 141,683
Net (income) attributable to noncontrolling interests in consolidated affiliates (1,712) (1,174) (1,214)
Distributions on Preferred Units (2,486) (2,488) (2,488)
Net income available for common unitholders $ 319,112 $ 354,252 $ 137,981
Denominator:      
Denominator for basic earnings per Common Unit - weighted average units (in shares) 106,634 106,297 106,014
Stock options using the treasury method 18 8 22
Denominator for diluted earnings per Common Unit - adjusted weighted average units and assumed conversions (in shares) 106,652 106,305 106,036
Earnings per Common Unit - diluted:      
Net income available for common unitholders (in dollars per share) $ 2.99 $ 3.33 $ 1.30
v3.22.0.1
Income Taxes (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Highwoods Properties, Inc. [Member]      
Income Tax Disclosure [Line Items]      
Minimum dividend required to maintain REIT status (in dollars per share) $ 1.61 $ 1.41 $ 1.44
Tax basis of assets $ 5,200,000 $ 4,700,000  
Tax basis of liabilities 3,200,000 2,800,000  
Income Tax Expense/(Benefit) [Abstract]      
Current federal tax expense 40 110 $ 202
Current state tax expense 79 240 148
Current tax expense 119 350 350
Deferred federal tax expense/(benefit) (39) (9) 14
Deferred state tax benefit 58 (4) (120)
Deferred tax benefit 19 (13) (106)
Total income tax expense 138 337 $ 244
Net deferred tax liabilities 100 100  
Highwoods Realty Limited Partnership [Member]      
Income Tax Disclosure [Line Items]      
Tax basis of assets 5,000,000 4,600,000  
Tax basis of liabilities $ 3,200,000 $ 2,800,000  
v3.22.0.1
Segment Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Segment Reporting Information [Abstract]      
Rental and other revenues $ 768,007 $ 736,900 $ 735,979
Total net operating income 531,571 505,075 487,468
Reconciliation to net income:      
Depreciation and amortization (259,255) (241,585) (254,504)
Impairments of real estate assets 0 (1,778) (5,849)
General and administrative expenses (40,553) (41,031) (44,067)
Interest expense (85,853) (80,962) (81,648)
Other income/(loss) 1,394 (1,707) (2,510)
Gains on disposition of property 174,059 215,897 39,517
Equity in earnings of unconsolidated affiliates 1,947 4,005 3,276
Net income 323,310 357,914 141,683
Total Assets 5,695,138 5,209,417  
Office Atlanta, GA [Member]      
Segment Reporting Information [Abstract]      
Rental and other revenues 143,612 146,704 151,279
Total net operating income 94,122 95,448 97,019
Reconciliation to net income:      
Total Assets 947,877 1,011,807  
Office Charlotte, NC [Member]      
Segment Reporting Information [Abstract]      
Rental and other revenues 49,347 35,733 4,650
Total net operating income 38,464 28,431 3,791
Reconciliation to net income:      
Total Assets 771,121 443,051  
Office Nashville, TN [Member]      
Segment Reporting Information [Abstract]      
Rental and other revenues 149,674 138,089 133,867
Total net operating income 110,039 99,901 97,386
Reconciliation to net income:      
Total Assets 1,294,178 1,191,219  
Office Orlando, FL [Member]      
Segment Reporting Information [Abstract]      
Rental and other revenues 51,281 49,459 52,679
Total net operating income 31,301 29,546 32,062
Reconciliation to net income:      
Total Assets 285,781 289,129  
Office Pittsburgh, PA [Member]      
Segment Reporting Information [Abstract]      
Rental and other revenues 57,371 58,518 60,755
Total net operating income 34,248 35,631 36,249
Reconciliation to net income:      
Total Assets 310,296 313,783  
Office Raleigh, NC [Member]      
Segment Reporting Information [Abstract]      
Rental and other revenues 162,115 128,189 122,173
Total net operating income 121,005 95,926 88,402
Reconciliation to net income:      
Total Assets 1,269,200 839,831  
Office Richmond, VA [Member]      
Segment Reporting Information [Abstract]      
Rental and other revenues 45,941 48,079 49,428
Total net operating income 31,726 33,667 33,756
Reconciliation to net income:      
Total Assets 202,488 240,976  
Office Tampa, FL [Member]      
Segment Reporting Information [Abstract]      
Rental and other revenues 97,954 99,520 86,431
Total net operating income 64,396 67,059 50,339
Reconciliation to net income:      
Total Assets 514,303 556,951  
Other Segment [Member]      
Segment Reporting Information [Abstract]      
Rental and other revenues 10,712 32,609 74,717
Total net operating income 6,270 19,466 48,464
Reconciliation to net income:      
Total Assets 99,894 322,670  
Office Total Segment [Member]      
Segment Reporting Information [Abstract]      
Rental and other revenues 757,295 704,291 661,262
Total net operating income 525,301 485,609 $ 439,004
Reconciliation to net income:      
Total Assets $ 5,595,244 $ 4,886,747  
v3.22.0.1
Subsequent Events (Details) - Highwoods Properties, Inc. [Member] - $ / shares
12 Months Ended
Feb. 02, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Subsequent Event [Line Items]        
Dividends declared per share of Common Stock (in dollars per share)   $ 1.96 $ 1.92 $ 1.90
Subsequent Event [Member]        
Subsequent Event [Line Items]        
Dividends declared per share of Common Stock (in dollars per share) $ 0.50      
v3.22.0.1
Schedule III (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
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 $ 6,486,136 $ 5,594,833 $ 5,776,804
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,457,511 1,421,956 1,405,341
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Federal Income Tax Basis 6,000,000    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, beginning balance 5,594,833 5,776,804 5,296,551
Acquisitions, development and improvements 1,248,256 259,470 677,842
Cost of real estate sold and retired (356,953) (441,441) (197,589)
Real estate assets, ending balance 6,486,136 5,594,833 5,776,804
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, beginning balance 1,421,956 1,405,341 1,296,562
Depreciation expense 218,628 204,585 214,682
Real estate sold and retired (183,073) (187,970) (105,903)
Accumulated depreciation, ending balance 1,457,511 1,421,956 1,405,341
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 6,486,136 5,594,833 5,776,804
Development in process exclusive of land included in Schedule III 6,890 259,681 172,706
Real estate assets, net, held for sale (3,482) (14,850) (34,396)
Total real estate assets 6,489,544 5,839,664 5,915,114
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,457,511 1,421,956 1,405,341
Real estate assets, net, held for sale 0 (3,577) (16,775)
Total accumulated depreciation 1,457,511 $ 1,418,379 $ 1,388,566
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 1,431    
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 3,913    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 3,915    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,110    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 3,915    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 2,110    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 3,915    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,110    
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 6,935    
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 36,016    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 37,460    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 20,861    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 37,460    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 20,861    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 37,460    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 20,861    
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 15,181    
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 15,181    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 16,348    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,207    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 16,348    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 7,207    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 16,348    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,207    
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 8,820    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 17,744    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 17,744    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,491    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 17,744    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 9,491    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 17,744    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,491    
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 340    
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 5,084    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 5,084    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,084    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 5,084    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 5,084    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 5,084    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,084    
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 9,012    
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 23,444    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 23,444    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,327    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 23,444    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 12,327    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 23,444    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,327    
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 14,785    
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 14,785    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 15,191    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,262    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 15,191    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 8,262    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 15,191    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,262    
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 12,824    
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 12,824    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 13,152    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,035    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 13,152    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 5,035    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 13,152    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,035    
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 6,447    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 6,447    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 6,447    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,594    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 6,447    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 2,594    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 6,447    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,594    
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 5,694    
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 16,373    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 16,373    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,514    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 16,373    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 8,514    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 16,373    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,514    
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 20,711    
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 42,354    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 42,354    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 20,219    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 42,354    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 20,219    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 42,354    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 20,219    
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 11,852    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 32,301    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 32,301    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 19,130    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 32,301    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 19,130    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 32,301    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 19,130    
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 4,746    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,290    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 13,313    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 14,603    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,206    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 14,603    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 7,206    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 14,603    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,206    
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 4,119    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,380    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 11,852    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 13,232    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,904    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 13,232    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 5,904    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 13,232    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,904    
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 (4,649)    
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 2,601    
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 3,319    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 203    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 3,319    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 203    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 3,319    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 203    
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 25,295    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 5,756    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 90,208    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 95,964    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 26,300    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 95,964    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 26,300    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 95,964    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 26,300    
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 (4,733)    
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 510    
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 510    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 510    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 0    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 510    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 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 555    
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 126,104    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 135,683    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 34,023    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 135,683    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 34,023    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 135,683    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 34,023    
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 21,171    
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 144,242    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 159,017    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 35,121    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 159,017    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 35,121    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 159,017    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 35,121    
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 7,754    
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 34,088    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 39,437    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,341    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 39,437    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 8,341    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 39,437    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,341    
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 5,234    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 5,103    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 28,045    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 33,148    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,177    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 33,148    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 8,177    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 33,148    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,177    
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 2,995    
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 92,703    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 97,930    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 14,342    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 97,930    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 14,342    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 97,930    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 14,342    
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    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 87    
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 87    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 1,110    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 87    
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 19,398    
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 162,466    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 185,183    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 30,985    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 185,183    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 30,985    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 185,183    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 30,985    
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 12,410    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 27,678    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 101,372    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 129,050    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 19,148    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 129,050    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 19,148    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 129,050    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 19,148    
Atlanta, GA - Galleria 75 [Member]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate 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 19,740    
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 19,740    
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 19,740    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 19,740    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 0    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 19,740    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0    
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 29,273    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 354,749    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land 0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 21,466    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 29,273    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 376,215    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 405,488    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 23,734    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 405,488    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 23,734    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 405,488    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 23,734    
Charlotte, NC - Morrocroft [Member]      
Real Estate and Accumulated Depreciation [Line Items]      
Real Estate and Accumulated Depreciation, Encumbrances 69,421    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate 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 19,286    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 177,199    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 19,286    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 177,199    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 196,485    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,660    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 196,485    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 2,660    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 196,485    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,660    
Charlotte, NC - Capitol Towers [Member]      
Real Estate and Accumulated Depreciation [Line Items]      
Real Estate and Accumulated Depreciation, Encumbrances 130,498    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate 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 9,202    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 102,179    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 9,202    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 102,179    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 111,381    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,351    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 111,381    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 1,351    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 111,381    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,351    
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 12,054    
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 39,544    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 42,569    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 20,091    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 42,569    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 20,091    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 42,569    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 20,091    
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 6,755    
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 29,672    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 35,534    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 16,937    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 35,534    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 16,937    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 35,534    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 16,937    
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 3,796    
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 10,997    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 12,860    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,051    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 12,860    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 7,051    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 12,860    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,051    
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 3,994    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 3,994    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 3,994    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,415    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 3,994    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 1,415    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 3,994    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,415    
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 4,466    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 4,466    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 4,466    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,649    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 4,466    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 1,649    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 4,466    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,649    
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 18,202    
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 18,202    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 19,800    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,279    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 19,800    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 8,279    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 19,800    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,279    
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 23,961    
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 23,961    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 26,131    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,567    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 26,131    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 9,567    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 26,131    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,567    
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 17,091    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 2,435    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 17,091    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 19,526    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,329    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 19,526    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 6,329    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 19,526    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,329    
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 20,234    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,715    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 20,234    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 21,949    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,701    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 21,949    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 6,701    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 21,949    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,701    
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 53,116    
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 53,116    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 57,099    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 24,867    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 57,099    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 24,867    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 57,099    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 24,867    
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 4,164    
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 9,841    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 11,260    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,870    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 11,260    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,870    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 11,260    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,870    
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 3,621    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,660    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 10,270    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 11,930    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,195    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 11,930    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 5,195    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 11,930    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,195    
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 3,553    
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 10,395    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 12,108    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,439    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 12,108    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 5,439    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 12,108    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,439    
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 6,187    
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 6,187    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 7,046    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,007    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 7,046    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 3,007    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 7,046    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,007    
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 6,335    
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 6,335    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 7,663    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,792    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 7,663    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 2,792    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 7,663    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,792    
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 9,857    
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 9,857    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 11,716    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,431    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 11,716    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 5,431    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 11,716    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,431    
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 10,062    
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 10,062    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 11,817    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,449    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 11,817    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 5,449    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 11,817    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,449    
Nashville, TN - Seven Springs I [Member]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land 2,076    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land 592    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 13,612    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 2,668    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 13,612    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 16,280    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,419    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 16,280    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 6,419    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 16,280    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,419    
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 9,410    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,965    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 9,410    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 11,375    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,582    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 11,375    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,582    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 11,375    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,582    
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 10,834    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 2,394    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 23,640    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 26,034    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,660    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 26,034    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 9,660    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 26,034    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,660    
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 12,337    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 2,488    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 12,337    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 14,825    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,893    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 14,825    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 6,893    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 14,825    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,893    
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 2,729    
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 9,987    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 11,484    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,293    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 11,484    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 5,293    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 11,484    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,293    
Nashville, TN - The Pinnacle at Symphony Place [Member]      
Real Estate and Accumulated Depreciation [Line Items]      
Real Estate and Accumulated Depreciation, Encumbrances 91,318    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land 0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 141,469    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land 0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 6,535    
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 148,004    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 148,004    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 42,086    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 148,004    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 42,086    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 148,004    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 42,086    
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 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 2,525    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 37,868    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 40,393    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,716    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 40,393    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 9,716    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 40,393    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,716    
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 404    
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 8,627    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 9,430    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,855    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 9,430    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 2,855    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 9,430    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,855    
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 2,034    
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 53,340    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 55,779    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,777    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 55,779    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 9,777    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 55,779    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,777    
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 3,033    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 2,356    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 33,081    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 35,437    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,376    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 35,437    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 5,376    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 35,437    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,376    
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 19,223    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 169,582    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land 0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 309    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 19,223    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 169,891    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 189,114    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 21,278    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 189,114    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 21,278    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 189,114    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 21,278    
Nashville, TN - Virginia 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 4,821    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 26,448    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real 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 4,821    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 26,448    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 31,269    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 720    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 31,269    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 720    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 31,269    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 720    
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 7,010    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 87,474    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land 0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 99    
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 87,573    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 94,583    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,787    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 94,583    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 8,787    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 94,583    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,787    
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 274    
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 25,906    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 30,440    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,760    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 30,440    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 2,760    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 30,440    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,760    
Nashville, TN - 1100 Broadway - Land [Member]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land 29,845    
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 (200)    
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 29,645    
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 29,645    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 29,645    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 0    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 29,645    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0    
Nashville, TN - Asurion [Member]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate 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 33,219    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 230,569    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 33,219    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 230,569    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 263,788    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,089    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 263,788    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 2,089    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 263,788    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,089    
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 58,168    
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 89,231    
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 89,231    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 89,231    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 0    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 89,231    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0    
Nashville, TN - Broadway Stem - 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 6,218    
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 526    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 6,218    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 526    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 6,744    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 6,744    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 6,744    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4    
Nashville, TN - YMCA Site - 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 16,121    
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 16,121    
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 16,121    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 16,121    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 0    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 16,121    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 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    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 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    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 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    
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 3,092    
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 12,943    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 12,943    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,809    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 12,943    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 8,809    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 12,943    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,809    
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 12,311    
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 41,852    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 45,745    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,684    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 45,745    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 10,684    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 45,745    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,684    
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 8,482    
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 51,876    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 56,222    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,421    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 56,222    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 12,421    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 56,222    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,421    
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 8,988    
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 36,309    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 39,791    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,932    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 39,791    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 8,932    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 39,791    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,932    
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 9,656    
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 31,687    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 36,430    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,074    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 36,430    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 9,074    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 36,430    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,074    
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 10,604    
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 33,259    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 39,466    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,449    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 39,466    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 8,449    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 39,466    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,449    
Orlando - 300 South Orange [Member]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land 3,490    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 56,079    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land 0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 7,980    
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 64,059    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 67,549    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,732    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 67,549    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 12,732    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 67,549    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,732    
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 5,785    
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 14,473    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 5,785    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 25,633    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 31,418    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,301    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 31,418    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,301    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 31,418    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,301    
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 51,888    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 9,819    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 159,531    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 169,350    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 50,381    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 169,350    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 50,381    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 169,350    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 50,381    
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 12,103    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 2,302    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 23,081    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 25,383    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,258    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 25,383    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 6,258    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 25,383    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,258    
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 4,736    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 501    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 7,659    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 8,160    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,174    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 8,160    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 3,174    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 8,160    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,174    
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 3,477    
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 6,716    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 7,336    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,204    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 7,336    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 2,204    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 7,336    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,204    
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 2,577    
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 7,501    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 8,304    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,171    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 8,304    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 2,171    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 8,304    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,171    
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 17,141    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 3,353    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 42,743    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 46,096    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 13,387    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 46,096    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 13,387    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 46,096    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 13,387    
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 17,574    
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 101,386    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 117,843    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 29,851    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 117,843    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 29,851    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 117,843    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 29,851    
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 2,478    
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 2,478    
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    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 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    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 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    
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 6,121    
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 17,115    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 17,115    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,386    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 17,115    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 9,386    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 17,115    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,386    
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 17,213    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 318    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 17,213    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 17,531    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,183    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 17,531    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 9,183    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 17,531    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,183    
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 7,396    
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 25,026    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 27,704    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 14,800    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 27,704    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 14,800    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 27,704    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 14,800    
Raleigh, NC - 5000 North Park [Member]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land 1,010    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 4,612    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land (49)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 3,231    
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 7,843    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 8,804    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,394    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 8,804    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,394    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 8,804    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,394    
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 11,686    
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 11,686    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 12,786    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,135    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 12,786    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 5,135    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 12,786    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,135    
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 1,428    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 722    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 6,034    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 6,756    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,013    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 6,756    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,013    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 6,756    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,013    
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 2,869    
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 4,279    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 4,741    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,881    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 4,741    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 1,881    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 4,741    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,881    
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 13,299    
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 13,299    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 14,437    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,027    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 14,437    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 5,027    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 14,437    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,027    
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 11,270    
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 11,270    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 12,534    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,959    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 12,534    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,959    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 12,534    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,959    
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 2,963    
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 37,535    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 38,826    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,789    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 38,826    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 6,789    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 38,826    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,789    
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 14,714    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,382    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 14,714    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 16,096    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,302    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 16,096    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 5,302    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 16,096    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,302    
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 13,969    
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 13,969    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 15,304    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,252    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 15,304    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,252    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 15,304    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,252    
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 (12,382)    
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 621    
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 735    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 59    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 735    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 59    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 735    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 59    
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 23,185    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 2,248    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 23,185    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 25,433    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,795    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 25,433    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 10,795    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 25,433    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,795    
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 20,527    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 2,152    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 20,527    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 22,679    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,671    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 22,679    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 7,671    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 22,679    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,671    
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 20,058    
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 20,058    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 20,634    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,887    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 20,634    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 6,887    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 20,634    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,887    
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 18,440    
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 18,440    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 20,284    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,149    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 20,284    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 9,149    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 20,284    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,149    
Raleigh, NC - Highwoods Centre [Member]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land 531    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land (267)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 8,028    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 264    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 8,028    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 8,292    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,555    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 8,292    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,555    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 8,292    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,555    
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    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 16    
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 16    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 798    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 16    
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 916    
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 7,227    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 8,677    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,254    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 8,677    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 2,254    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 8,677    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,254    
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 3,395    
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 3,395    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 3,651    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,623    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 3,651    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 1,623    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 3,651    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,623    
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 10,670    
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 10,670    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 11,361    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,653    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 11,361    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 5,653    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 11,361    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,653    
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 (50)    
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 16,889    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 19,554    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,564    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 19,554    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 2,564    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 19,554    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,564    
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 70,872    
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 70,872    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 72,078    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 27,086    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 72,078    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 27,086    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 72,078    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 27,086    
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 2,524    
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 6,254    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 7,132    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,220    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 7,132    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,220    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 7,132    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,220    
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 1,448    
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 3,266    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 3,628    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,299    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 3,628    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 2,299    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 3,628    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,299    
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 1,633    
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 4,449    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 5,368    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,964    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 5,368    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 2,964    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 5,368    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,964    
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 4,842    
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 4,842    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 5,428    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,050    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 5,428    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 3,050    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 5,428    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,050    
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 8,863    
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 8,863    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 10,348    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,405    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 10,348    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 3,405    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 10,348    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,405    
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 5,434    
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 9,472    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 9,964    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,415    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 9,964    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 3,415    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 9,964    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,415    
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 1,803    
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 4,468    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 5,134    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,420    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 5,134    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 2,420    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 5,134    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,420    
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 1,870    
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 6,403    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 7,489    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,887    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 7,489    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 3,887    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 7,489    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,887    
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 3,338    
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 7,749    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 8,611    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,703    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 8,611    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,703    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 8,611    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,703    
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 5,771    
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 5,771    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 6,243    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,334    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 6,243    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 3,334    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 6,243    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,334    
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    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 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    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 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    
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 6,016    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 726    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 6,016    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 6,742    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,632    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 6,742    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 3,632    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 6,742    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,632    
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 14,540    
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 33,390    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 36,041    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,842    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 36,041    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 7,842    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 36,041    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,842    
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 3,694    
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 33,958    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 36,221    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,197    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 36,221    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 10,197    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 36,221    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,197    
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 18    
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 13,206    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 14,032    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,345    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 14,032    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 3,345    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 14,032    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,345    
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    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 621    
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 621    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 3,548    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 621    
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    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 411    
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 411    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 2,348    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 411    
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 26,283    
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 94,658    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 105,946    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 24,562    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 105,946    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 24,562    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 105,946    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 24,562    
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 2,031    
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 8,015    
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 8,015    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 8,015    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 0    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 8,015    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 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 4,464    
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 70,345    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 77,612    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 11,979    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 77,612    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 11,979    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 77,612    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 11,979    
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 21,580    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 149,889    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real 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    
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 149,930    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 171,510    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 24,164    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 171,510    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 24,164    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 171,510    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 24,164    
Raleigh, NC - GlenLake Seven [Member]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land 1,662    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 37,332    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real 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 1,662    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 37,332    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 38,994    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,624    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 38,994    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 1,624    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 38,994    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,624    
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 9,248    
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 9,248    
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 9,248    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 9,248    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 0    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 9,248    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0    
Raleigh, NC - Forum 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 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 1,278    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 27,809    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,278    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 27,809    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 29,087    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,197    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 29,087    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 1,197    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 29,087    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,197    
Raleigh, NC - Forum 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 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 1,327    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 18,088    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,327    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 18,088    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 19,415    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 758    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 19,415    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 758    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 19,415    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 758    
Raleigh, NC - Forum 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 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 994    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 23,931    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 994    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 23,931    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 24,925    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,001    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 24,925    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 1,001    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 24,925    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,001    
Raleigh, NC - Forum 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 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 2,118    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 43,889    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 2,118    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 43,889    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 46,007    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,590    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 46,007    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 1,590    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 46,007    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,590    
Raleigh, NC - Forum 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 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 1,552    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 26,263    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,552    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 26,263    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 27,815    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,190    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 27,815    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 1,190    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 27,815    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,190    
Raleigh, NC - Captrust Tower [Member]      
Real Estate and Accumulated Depreciation [Line Items]      
Real Estate and Accumulated Depreciation, Encumbrances 84,972    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate 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 9,670    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 124,530    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 9,670    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 124,530    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 134,200    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,673    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 134,200    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 1,673    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 134,200    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,673    
Raleigh, NC - 150 Fayetteville [Member]      
Real Estate and Accumulated Depreciation [Line Items]      
Real Estate and Accumulated Depreciation, Encumbrances 115,731    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate 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 7,677    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 130,049    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 7,677    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 130,049    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 137,726    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,185    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 137,726    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 2,185    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 137,726    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,185    
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 27,260    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 20,868    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land (13,177)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 31,819    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 14,083    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 52,687    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 66,770    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 28,878    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 66,770    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 28,878    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 66,770    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 28,878    
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 3,930    
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 9,241    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 10,580    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,815    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 10,580    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 5,815    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 10,580    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,815    
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 2,479    
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 8,584    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 9,948    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,997    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 9,948    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 3,997    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 9,948    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,997    
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 (465)    
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 636    
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 636    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 636    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 0    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 636    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 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 (397)    
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 12,902    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 14,651    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,641    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 14,651    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 6,641    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 14,651    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,641    
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 4,581    
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 4,581    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 5,560    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,342    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 5,560    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 2,342    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 5,560    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,342    
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 14,252    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,710    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 14,252    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 15,962    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,762    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 15,962    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 7,762    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 15,962    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,762    
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 10,483    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,012    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 10,483    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 11,495    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,504    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 11,495    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,504    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 11,495    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,504    
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 8,177    
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 8,177    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 8,971    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,130    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 8,971    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,130    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 8,971    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,130    
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 5,880    
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 5,880    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 6,976    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,885    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 6,976    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 2,885    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 6,976    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,885    
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 125    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 7,735    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 970    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 7,735    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 8,705    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,566    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 8,705    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 3,566    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 8,705    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,566    
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 2,795    
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 7,620    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 8,825    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,789    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 8,825    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 3,789    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 8,825    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,789    
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 (3,295)    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,513    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 9,964    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 11,477    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,389    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 11,477    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,389    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 11,477    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,389    
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 (3,432)    
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 13,649    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 15,518    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,007    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 15,518    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 6,007    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 15,518    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,007    
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 3,436    
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 12,095    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 14,264    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,708    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 14,264    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 6,708    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 14,264    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,708    
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 137    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 12,972    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,088    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 12,972    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 14,060    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,435    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 14,060    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 6,435    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 14,060    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,435    
Richmond, VA - North Shore Commons II [Member]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land 2,067    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land (89)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 11,526    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,978    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 11,526    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 13,504    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,036    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 13,504    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,036    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 13,504    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,036    
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 55    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 10    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,552    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 10    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 1,562    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1    
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 1    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 1,562    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1    
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    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 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    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 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    
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 21,632    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 356    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 21,632    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 21,988    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 11,239    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 21,988    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 11,239    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 21,988    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 11,239    
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 (181)    
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 0    
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 0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 0    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 0    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 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 3,018    
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 11,882    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 13,503    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,082    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 13,503    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 6,082    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 13,503    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,082    
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    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 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    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 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    
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 12,337    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 2,276    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 12,337    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 14,613    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,797    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 14,613    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,797    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 14,613    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,797    
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 4,472    
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 16,102    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 17,219    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,937    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 17,219    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 8,937    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 17,219    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,937    
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 13,949    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,343    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 13,949    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 15,292    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,983    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 15,292    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 6,983    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 15,292    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,983    
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 11,166    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 995    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 11,166    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 12,161    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,785    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 12,161    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 5,785    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 12,161    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,785    
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 11,955    
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 11,955    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 12,910    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,860    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 12,910    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,860    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 12,910    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,860    
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 2,598    
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 8,634    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 9,950    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,865    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 9,950    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 3,865    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 9,950    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,865    
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 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 914    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 9,145    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 10,059    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,279    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 10,059    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,279    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 10,059    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,279    
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 3,326    
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 141    
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 3,467    
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 3,467    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 0    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 3,467    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 0    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 3,467    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 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 6,510    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 2,673    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 22,980    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 25,653    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,097    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 25,653    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 8,097    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 25,653    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,097    
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 3,575    
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 15,392    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 17,668    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,730    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 17,668    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 7,730    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 17,668    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,730    
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 25,163    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 4,460    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 25,163    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 29,623    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,273    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 29,623    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 9,273    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 29,623    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,273    
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 38,144    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 3,501    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 38,144    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 41,645    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 14,054    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 41,645    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 14,054    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 41,645    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 14,054    
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 4,475    
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 10,732    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 10,732    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,419    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 10,732    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 5,419    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 10,732    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,419    
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 41,965    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 2,106    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 42,054    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 44,160    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 24,503    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 44,160    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 24,503    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 44,160    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 24,503    
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 15,394    
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 31,242    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 33,914    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 17,421    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 33,914    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 17,421    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 33,914    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 17,421    
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 7,160    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 14,529    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 14,529    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,722    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 14,529    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 7,722    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 14,529    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,722    
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 5,731    
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 5,731    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 5,731    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,702    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 5,731    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 2,702    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 5,731    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,702    
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 16,815    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 2,016    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 42,067    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 44,083    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 19,922    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 44,083    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 19,922    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 44,083    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 19,922    
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 3,417    
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 12,824    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 12,824    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,566    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 12,824    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 6,566    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 12,824    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,566    
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 5,793    
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 22,187    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 22,187    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 13,108    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 22,187    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 13,108    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 22,187    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 13,108    
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 5,911    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 5,911    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 5,911    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,192    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 5,911    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 3,192    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 5,911    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,192    
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 5,112    
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 19,614    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 21,068    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,788    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 21,068    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 10,788    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 21,068    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,788    
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 8,630    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 3,218    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 28,528    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 31,746    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 14,728    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 31,746    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 14,728    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 31,746    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 14,728    
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 1,738    
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 6,924    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 8,050    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,925    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 8,050    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 3,925    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 8,050    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,925    
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 5,058    
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 10,001    
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 12,228    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 269    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 12,228    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 269    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 12,228    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 269    
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 5,813    
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 10,339    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 12,870    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,718    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 12,870    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 5,718    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 12,870    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,718    
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 3,314    
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 25,677    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 27,526    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,611    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 27,526    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 6,611    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 27,526    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,611    
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 5,470    
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 25,058    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 26,360    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,826    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 26,360    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 6,826    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 26,360    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,826    
Tampa, FL - 5332 Avion 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 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 39,620    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 6,310    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 39,620    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 45,930    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,378    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 45,930    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 5,378    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 45,930    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,378    
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 25,702    
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 127,840    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 129,820    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 24,605    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 129,820    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 24,605    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 129,820    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 24,605    
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    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 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    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 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    
Tampa, FL - Midtown [Member]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate 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 16,543    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 34,818    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 16,543    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 34,818    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 51,361    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 533    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 51,361    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 533    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 51,361    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 533    
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 602,096    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 3,235,692    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land 165,871    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 2,482,477    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 767,967    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 5,718,169    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 6,486,136    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,457,511    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 6,486,136    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 1,457,511    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 6,486,136    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation $ 1,457,511    
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 - 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 - 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] | Charlotte, NC - Morrocroft [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 - Capitol Towers [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 - Virginia 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 - 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] | Nashville, TN - Asurion [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 - Broadway Stem - 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] | 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] | 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 - 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 - 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 - 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 - 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 - GlenLake Seven [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 - Forum 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] | Raleigh, NC - Forum 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] | Raleigh, NC - Forum 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] | Raleigh, NC - Forum 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] | Raleigh, NC - Forum 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] | Raleigh, NC - Captrust 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 - 150 Fayetteville [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 - 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 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 - 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 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 - 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 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] | 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    
Minimum [Member] | Tampa, FL - Midtown [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 - 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 - 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] | Charlotte, NC - Morrocroft [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 - Capitol Towers [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 - Virginia 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 - 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] | Nashville, TN - Asurion [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 - Broadway Stem - 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] | 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] | 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 - 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 - 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 - 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 - 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 - GlenLake Seven [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 - Forum 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] | Raleigh, NC - Forum 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] | Raleigh, NC - Forum 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] | Raleigh, NC - Forum 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] | Raleigh, NC - Forum 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] | Raleigh, NC - Captrust 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 - 150 Fayetteville [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 - 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 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 - 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 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 - 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 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] | 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    
Maximum [Member] | Tampa, FL - Midtown [Member]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Life Used For Depreciation 40 years