HIGHWOODS PROPERTIES, INC., 10-K filed on 2/6/2024
Annual Report
v3.24.0.1
Cover Page - USD ($)
$ in Billions
12 Months Ended
Dec. 31, 2023
Jan. 26, 2024
Jun. 30, 2023
Entity Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2023    
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 150 Fayetteville Street    
Entity Address, Address Line Two Suite 1400    
Entity Address, City or Town Raleigh    
Entity Address, State or Province NC    
Entity Address, Postal Zip Code 27601    
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    
Document Financial Statement Error Correction Flag false    
Entity Public Float     $ 2.5
Entity Common Stock, Shares Outstanding   105,710,315  
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 14, 2024 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 2023    
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    
Document Financial Statement Error Correction Flag false    
Entity Central Index Key 0000941713    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Amendment Flag false    
v3.24.0.1
Audit Information
12 Months Ended
Dec. 31, 2023
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
v3.24.0.1
Consolidated Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Real estate assets, at cost:    
Land $ 540,050 $ 548,720
Buildings and tenant improvements 5,960,895 5,909,754
Development in-process 8,918 46,735
Land held for development 227,058 231,218
Total real estate assets 6,736,921 6,736,427
Less-accumulated depreciation (1,743,390) (1,609,502)
Net real estate assets 4,993,531 5,126,925
Cash and cash equivalents 25,123 21,357
Restricted cash 6,446 4,748
Accounts receivable 28,094 25,481
Mortgages and notes receivable 4,795 1,051
Accrued straight-line rents receivable 310,649 293,674
Investments in and advances to unconsolidated affiliates 343,241 269,221
Deferred leasing costs, net of accumulated amortization of $175,697 and $163,751, respectively 225,924 252,828
Prepaid expenses and other assets, net of accumulated depreciation of $22,142 and $21,660, respectively 65,125 68,091
Total Assets 6,002,928 6,063,376
Liabilities, Noncontrolling Interests in the Operating Partnership and Equity/Liabilities, Redeemable Operating Partnership Units and Capital:    
Mortgages and notes payable, net 3,213,206 3,197,215
Accounts payable, accrued expenses and other liabilities 302,180 301,184
Total Liabilities 3,515,386 3,498,399
Commitments and contingencies
Noncontrolling interests in the Operating Partnership 49,520 65,977
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), 28,811 and 28,821 shares issued and outstanding, respectively 28,811 28,821
Common Stock, $.01 par value, 200,000,000 authorized shares; 105,710,315 and 105,210,858 shares issued and outstanding, respectively 1,057 1,052
Additional paid-in capital 3,103,446 3,081,330
Distributions in excess of net income available for common stockholders (698,020) (633,227)
Accumulated other comprehensive loss (1,997) (1,211)
Total Stockholders’ Equity 2,433,297 2,476,765
Noncontrolling interests in consolidated affiliates 4,725 22,235
Total Equity/Capital: 2,438,022 2,499,000
Total Liabilities, Noncontrolling Interests in the Operating Partnership and Equity/Total Liabilities, Redeemable Operating Partnership Units and Capital 6,002,928 6,063,376
Highwoods Realty Limited Partnership [Member]    
Real estate assets, at cost:    
Land 540,050 548,720
Buildings and tenant improvements 5,960,895 5,909,754
Development in-process 8,918 46,735
Land held for development 227,058 231,218
Total real estate assets 6,736,921 6,736,427
Less-accumulated depreciation (1,743,390) (1,609,502)
Net real estate assets 4,993,531 5,126,925
Cash and cash equivalents 25,123 21,357
Restricted cash 6,446 4,748
Accounts receivable 28,094 25,481
Mortgages and notes receivable 4,795 1,051
Accrued straight-line rents receivable 310,649 293,674
Investments in and advances to unconsolidated affiliates 343,241 269,221
Deferred leasing costs, net of accumulated amortization of $175,697 and $163,751, respectively 225,924 252,828
Prepaid expenses and other assets, net of accumulated depreciation of $22,142 and $21,660, respectively 65,125 68,091
Total Assets 6,002,928 6,063,376
Liabilities, Noncontrolling Interests in the Operating Partnership and Equity/Liabilities, Redeemable Operating Partnership Units and Capital:    
Mortgages and notes payable, net 3,213,206 3,197,215
Accounts payable, accrued expenses and other liabilities 302,180 301,184
Total Liabilities 3,515,386 3,498,399
Commitments and contingencies
Redeemable Operating Partnership Units:    
Redeemable Operating Partnership Units, Common Units, 2,156,808 and 2,358,009 outstanding, respectively 49,520 65,977
Series A Preferred Units (liquidation preference $1,000 per unit), 28,811 and 28,821 units issued and outstanding, respectively 28,811 28,821
Total Redeemable Operating Partnership Units 78,331 94,798
Equity/Capital:    
General partner Common Units, 1,074,583 and 1,071,601 outstanding, respectively 24,064 24,492
Limited partner Common Units, 104,226,923 and 103,730,448 outstanding, respectively 2,382,419 2,424,663
Accumulated other comprehensive loss (1,997) (1,211)
Noncontrolling interests in consolidated affiliates 4,725 22,235
Total Equity/Capital: 2,409,211 2,470,179
Total Liabilities, Noncontrolling Interests in the Operating Partnership and Equity/Total Liabilities, Redeemable Operating Partnership Units and Capital $ 6,002,928 $ 6,063,376
v3.24.0.1
Consolidated Balance Sheets (Parentheticals) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Assets:    
Deferred leasing costs, accumulated amortization $ 175,697 $ 163,751
Prepaid expenses and other assets, accumulated amortization $ 22,142 $ 21,660
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
Series A Preferred Stock, dividend rate percentage (in hundredths) 8.625% 8.625%
Preferred Stock, liquidation preference (in dollars per share) $ 1,000 $ 1,000
Preferred Stock, shares issued (in shares) 28,811 28,821
Preferred Stock, shares outstanding (in shares) 28,811 28,821
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) 105,710,315 105,210,858
Common Stock, shares outstanding (in shares) 105,710,315 105,210,858
Highwoods Realty Limited Partnership [Member]    
Assets:    
Deferred leasing costs, accumulated amortization $ 175,697 $ 163,751
Prepaid expenses and other assets, accumulated amortization $ 22,142 $ 21,660
Redeemable Operating Partnership Units:    
Redeemable Common Units, outstanding (in shares) 2,156,808 2,358,009
Preferred Units liquidation preference (in dollars per share) $ 1,000 $ 1,000
Series A Preferred Units, issued (in shares) 28,811 28,821
Series A Preferred Units, outstanding (in shares) 28,811 28,821
Common Units:    
General partners' capital account, units outstanding (in shares) 1,074,583 1,071,601
Limited partners' capital account, units outstanding (in shares) 104,226,923 103,730,448
v3.24.0.1
Consolidated Statements of Income - USD ($)
shares in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Rental and other revenues $ 833,997 $ 828,929 $ 768,007
Operating expenses:      
Rental property and other expenses 268,782 259,806 236,436
Depreciation and amortization 299,411 287,610 259,255
Impairments of real estate assets 0 36,515 0
General and administrative 42,857 42,266 40,553
Total operating expenses 611,050 626,197 536,244
Interest expense 136,710 105,385 85,853
Other income 4,435 1,530 1,394
Gains on disposition of property 47,773 63,546 174,059
Gain on deconsolidation of affiliate 11,778 0 0
Equity in earnings of unconsolidated affiliates 1,107 1,535 1,947
Net income 151,330 163,958 323,310
Net (income) attributable to noncontrolling interests in the Operating Partnership (3,164) (3,670) (8,321)
Net (income)/loss attributable to noncontrolling interests in consolidated affiliates 549 (1,230) (1,712)
Dividends on Preferred Stock (2,485) (2,486) (2,486)
Net income available for common stockholders $ 146,230 $ 156,572 $ 310,791
Earnings per Common Share - basic:      
Net income available for common stockholders (in dollars per share) $ 1.39 $ 1.49 $ 2.98
Weighted average Common Shares outstanding - basic (in shares) 105,529 105,120 104,232
Earnings per Common Share - diluted:      
Net income available for common stockholders (in dollars per share) $ 1.39 $ 1.49 $ 2.98
Weighted average Common Shares outstanding - diluted (in shares) 107,785 107,567 107,061
Highwoods Realty Limited Partnership [Member]      
Rental and other revenues $ 833,997 $ 828,929 $ 768,007
Operating expenses:      
Rental property and other expenses 268,782 259,806 236,436
Depreciation and amortization 299,411 287,610 259,255
Impairments of real estate assets 0 36,515 0
General and administrative 42,857 42,266 40,553
Total operating expenses 611,050 626,197 536,244
Interest expense 136,710 105,385 85,853
Other income 4,435 1,530 1,394
Gains on disposition of property 47,773 63,546 174,059
Gain on deconsolidation of affiliate 11,778 0 0
Equity in earnings of unconsolidated affiliates 1,107 1,535 1,947
Net income 151,330 163,958 323,310
Net (income)/loss attributable to noncontrolling interests in consolidated affiliates 549 (1,230) (1,712)
Distributions on Preferred Units (2,485) (2,486) (2,486)
Net income available for common unitholders $ 149,394 $ 160,242 $ 319,112
Earnings per Common Unit - basic:      
Net income available for common unitholders (in dollars per share) $ 1.39 $ 1.50 $ 2.99
Weighted average Common Units outstanding - basic (in shares) 107,376 107,153 106,634
Earnings per Common Unit - diluted:      
Net income available for common unitholders (in dollars per share) $ 1.39 $ 1.50 $ 2.99
Weighted average Common Units outstanding - diluted (in shares) 107,376 107,158 106,652
v3.24.0.1
Consolidated Statements of Comprehensive Income - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Comprehensive income:      
Net income $ 151,330 $ 163,958 $ 323,310
Other comprehensive income/(loss):      
Settlement of cash flow hedges (493) 0 0
Unrealized losses on cash flow hedges 0 0 (19)
Amortization of cash flow hedges (293) (238) 508
Total other comprehensive income/(loss) (786) (238) 489
Total comprehensive income 150,544 163,720 323,799
Less-comprehensive (income) attributable to noncontrolling interests (2,615) (4,900) (10,033)
Comprehensive income attributable to common stockholders/unitholders 147,929 158,820 313,766
Highwoods Realty Limited Partnership [Member]      
Comprehensive income:      
Net income 151,330 163,958 323,310
Other comprehensive income/(loss):      
Settlement of cash flow hedges (493) 0 0
Unrealized losses on cash flow hedges 0 0 (19)
Amortization of cash flow hedges (293) (238) 508
Total other comprehensive income/(loss) (786) (238) 489
Total comprehensive income 150,544 163,720 323,799
Less-comprehensive (income) attributable to noncontrolling interests 549 (1,230) (1,712)
Comprehensive income attributable to common stockholders/unitholders $ 151,093 $ 162,490 $ 322,087
v3.24.0.1
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, 2020     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            
Distributions on Common Units   (208,896)     (2,089) (206,807)            
Distributions on Preferred Units   (2,486)     (25) (2,461)            
Issuances of Common Stock - Shares     459,477                  
Issuances of Common Stock, net of issuance costs and tax withholdings 21,664   $ 8       21,656          
Conversions of Common Units to Common Stock - Shares     333,920                  
Conversions of Common Units to Common Stock 15,076           15,076          
Dividends on Common Stock (204,182)                     (204,182)
Dividends on Preferred Stock (2,486)                     (2,486)
Adjustment of noncontrolling interests in the Operating Partnership to fair value (11,461)           (11,461)          
Distributions to noncontrolling interests in consolidated affiliates (1,342) (1,342)               (1,342) (1,342)  
Issuances of restricted stock - Shares     184,584                  
Issuances of restricted stock 0                      
Redemptions/repurchases of Preferred Stock (5)     (5)                
Share-based compensation expense, net of forfeitures - Shares     (6,747)                  
Share-based compensation expense, net of forfeitures 8,646 8,646 $ 2   86 8,560 8,644          
Adjustment of Redeemable Common Units to fair value and contributions/distributions from/to the General Partner   8     0 8            
Net (income) attributable to noncontrolling interests in the Operating Partnership (8,321)                     (8,321)
Net (income) attributable to noncontrolling interests in consolidated affiliates 0 0     (17) (1,695)       1,712 1,712 (1,712)
Comprehensive income:                        
Net income 323,310 323,310     3,233 320,077           323,310
Other comprehensive income/(loss) 489 489           489 489      
Total comprehensive income 323,799 323,799                    
Balance (in shares) at Dec. 31, 2021     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)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                        
Issuances of Common Units, net of issuance costs and tax withholdings   5,167     52 5,115            
Redemptions of Common Units   (3,763)     (38) (3,725)            
Distributions on Common Units   (214,231)     (2,142) (212,089)            
Distributions on Preferred Units   (2,486)     (25) (2,461)            
Issuances of Common Stock - Shares     106,141                  
Issuances of Common Stock, net of issuance costs and tax withholdings 5,167   $ 1       5,166          
Conversions of Common Units to Common Stock - Shares     30,909                  
Conversions of Common Units to Common Stock 1,251           1,251          
Dividends on Common Stock (210,183)                     (210,183)
Dividends on Preferred Stock (2,486)                     (2,486)
Adjustment of noncontrolling interests in the Operating Partnership to fair value 39,502           39,502          
Distributions to noncontrolling interests in consolidated affiliates (1,411) (1,411)               (1,411) (1,411)  
Issuances of restricted stock - Shares     181,807                  
Issuances of restricted stock 0                      
Share-based compensation expense, net of forfeitures - Shares     (779)                  
Share-based compensation expense, net of forfeitures 7,552 7,552 $ 2   76 7,476 7,550 0        
Adjustment of Redeemable Common Units to fair value and contributions/distributions from/to the General Partner   44,894     449 44,445            
Net (income) attributable to noncontrolling interests in the Operating Partnership (3,670)                     (3,670)
Net (income) attributable to noncontrolling interests in consolidated affiliates 0 0     (12) (1,218)       1,230 1,230 (1,230)
Comprehensive income:                        
Net income 163,958 163,958     1,640 162,318           163,958
Other comprehensive income/(loss) (238) (238)           (238) (238)      
Total comprehensive income $ 163,720 163,720                    
Balance (in shares) at Dec. 31, 2022 105,210,858   105,210,858                  
Balance at Dec. 31, 2022 $ 2,499,000 2,470,179 $ 1,052 28,821 24,492 2,424,663 3,081,330 (1,211) (1,211) 22,235 22,235 (633,227)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                        
Issuances of Common Units, net of issuance costs and tax withholdings   190     2 188            
Redemptions of Common Units   (163)     (2) (161)            
Distributions on Common Units   (214,716)     (2,147) (212,569)            
Distributions on Preferred Units   (2,485)     (25) (2,460)            
Issuances of Common Stock - Shares     27,064                  
Issuances of Common Stock, net of issuance costs and tax withholdings 190   $ 2       188          
Conversions of Common Units to Common Stock - Shares     193,907                  
Conversions of Common Units to Common Stock 4,795           4,795          
Dividends on Common Stock (211,023)                     (211,023)
Dividends on Preferred Stock (2,485)                     (2,485)
Adjustment of noncontrolling interests in the Operating Partnership to fair value 10,152           10,152          
Contributions from noncontrolling interests in consolidated affiliates 320 320 $ 0 0 0 0 0 0 0 320 320 0
Issuances of restricted stock - Shares     282,453                  
Issuances of restricted stock 0                      
Redemptions/repurchases of Preferred Stock (10)   $ 0 (10)     0 0   0   0
Share-based compensation expense, net of forfeitures - Shares     (3,967)                  
Share-based compensation expense, net of forfeitures 6,984 6,984 $ 3   70 6,914 6,981          
Adjustment of Redeemable Common Units to fair value and contributions/distributions from/to the General Partner   15,639     156 15,483            
Net (income) attributable to noncontrolling interests in the Operating Partnership (3,164)                     (3,164)
Net (income) attributable to noncontrolling interests in consolidated affiliates 0 0     5 544       (549) (549) 549
Deconsolidation of affiliate (17,281) (17,281)               (17,281) (17,281)  
Comprehensive income:                        
Net income 151,330 151,330     1,513 149,817           151,330
Other comprehensive income/(loss) (786) (786)           (786) (786)      
Total comprehensive income $ 150,544 150,544                    
Balance (in shares) at Dec. 31, 2023 105,710,315   105,710,315                  
Balance at Dec. 31, 2023 $ 2,438,022 $ 2,409,211 $ 1,057 $ 28,811 $ 24,064 $ 2,382,419 $ 3,103,446 $ (1,997) $ (1,997) $ 4,725 $ 4,725 $ (698,020)
v3.24.0.1
Consolidated Statements of Equity (Parentheticals) - $ / shares
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
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) 2.00 2.00 1.96
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) 2.00 2.00 1.96
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
v3.24.0.1
Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Operating activities:      
Net income $ 151,330 $ 163,958 $ 323,310
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization 299,411 287,610 259,255
Amortization of lease incentives and acquisition-related intangible assets and liabilities 1,135 (42) (1,903)
Share-based compensation expense 6,984 7,552 8,646
Net credit losses on operating lease receivables 3,834 3,199 425
Accrued interest on mortgages and notes receivable (805) (88) (103)
Amortization of debt issuance costs 4,884 4,324 4,451
Amortization of cash flow hedges (293) (238) 508
Amortization of mortgages and notes payable fair value adjustments (288) (70) 862
Impairments of real estate assets 0 36,515 0
Losses on debt extinguishment 602 0 286
Net gains on disposition of property (47,773) (63,546) (174,059)
Gain on deconsolidation of affiliate (11,778) 0 0
Equity in earnings of unconsolidated affiliates (1,107) (1,535) (1,947)
Distributions of earnings from unconsolidated affiliates 1,246 614 1,417
Settlement of cash flow hedges (493) 0 0
Changes in operating assets and liabilities:      
Accounts receivable (547) (10,955) 5,744
Prepaid expenses and other assets 1,259 1,685 1,575
Accrued straight-line rents receivable (24,510) (29,421) (22,100)
Accounts payable, accrued expenses and other liabilities 3,871 22,217 8,191
Net cash provided by operating activities 386,962 421,779 414,558
Investing activities:      
Investments in acquired real estate and related intangible assets, net of cash acquired (18,544) (224,934) (305,291)
Investments in development in-process (33,848) (44,352) (77,854)
Investments in tenant improvements and deferred leasing costs (112,290) (120,739) (93,654)
Investments in building improvements (64,312) (76,415) (48,405)
Investment in acquired controlling interest in unconsolidated affiliate 0 0 (127,339)
Net proceeds from disposition of real estate assets 101,829 130,038 374,016
Distributions of capital from unconsolidated affiliates 6,594 0 0
Investments in mortgages and notes receivable (14,463) (24) (84)
Repayments of mortgages and notes receivable 9,888 288 301
Investments in and advances to unconsolidated affiliates (132,609) (261,772) (6,079)
Repayments of preferred equity from unconsolidated affiliates 80,000 0 0
Changes in earnest money deposits 15,500 (15,500) 0
Changes in other investing activities (7,431) (1,389) (3,289)
Net cash used in investing activities (169,686) (614,799) (287,678)
Financing activities:      
Dividends on Common Stock (211,023) (210,183) (204,182)
Redemptions/repurchases of Preferred Stock (10) 0 (5)
Redemptions of Common Units (163) (3,763) 0
Dividends on Preferred Stock (2,485) (2,486) (2,486)
Distributions to noncontrolling interests in the Operating Partnership (4,511) (4,866) (5,516)
Distributions to noncontrolling interests in consolidated affiliates 0 (1,411) (1,342)
Proceeds from the issuance of Common Stock 1,741 7,570 23,917
Costs paid for the issuance of Common Stock (226) (247) (535)
Repurchase of shares related to tax withholdings (1,325) (2,156) (1,718)
Borrowings on revolving credit facility 249,000 675,000 380,000
Repayments of revolving credit facility (615,000) (359,000) (310,000)
Borrowings on mortgages and notes payable 590,352 550,000 200,000
Repayments of mortgages and notes payable (206,726) (456,444) (353,780)
Contributions from noncontrolling interests in consolidated affiliates 320 0 0
Payments for debt issuance costs and other financing activities (5,370) (4,087) (9,279)
Net cash provided by/(used in) financing activities (205,426) 187,927 (284,926)
Net increase/(decrease) in cash and cash equivalents and restricted cash 11,850 (5,093) (158,046)
Cash from deconsolidation of affiliate (6,386) 0 0
Cash and cash equivalents and restricted cash at beginning of the period 26,105 31,198 189,244
Cash and cash equivalents and restricted cash at end of the period 31,569 26,105 31,198
Reconciliation of cash and cash equivalents and restricted cash:      
Cash and cash equivalents at end of the period 25,123 21,357 23,152
Restricted cash at end of the period 6,446 4,748 8,046
Supplemental disclosure of cash flow information:      
Cash paid for interest, net of amounts capitalized 129,764 102,501 79,474
Supplemental disclosure of non-cash investing and financing activities:      
Conversions of Common Units to Common Stock 4,795 1,251 15,076
Changes in accrued capital expenditures (1) [1] 2,342 (1,426) (9,843)
Write-off of fully depreciated real estate assets 76,722 58,905 68,307
Write-off of fully amortized leasing costs 36,051 29,083 43,648
Write-off of fully amortized debt issuance costs 1,356 3,292 5,200
Adjustment of noncontrolling interests in the Operating Partnership to fair value (10,152) (39,502) 11,461
Assumption of mortgages and notes payable related to acquisition activities 0 0 403,000
Initial recognition of lease liabilities related to right of use assets 0 0 5,310
Future consideration in connection with the acquisition of land 0 0 16,000
Accrued capital expenditures included in accounts payable, accrued expenses and other liabilities 55,700 53,200 56,100
Highwoods Realty Limited Partnership [Member]      
Operating activities:      
Net income 151,330 163,958 323,310
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization 299,411 287,610 259,255
Amortization of lease incentives and acquisition-related intangible assets and liabilities 1,135 (42) (1,903)
Share-based compensation expense 6,984 7,552 8,646
Net credit losses on operating lease receivables 3,834 3,199 425
Accrued interest on mortgages and notes receivable (805) (88) (103)
Amortization of debt issuance costs 4,884 4,324 4,451
Amortization of cash flow hedges (293) (238) 508
Amortization of mortgages and notes payable fair value adjustments (288) (70) 862
Impairments of real estate assets 0 36,515 0
Losses on debt extinguishment 602 0 286
Net gains on disposition of property (47,773) (63,546) (174,059)
Gain on deconsolidation of affiliate (11,778) 0 0
Equity in earnings of unconsolidated affiliates (1,107) (1,535) (1,947)
Distributions of earnings from unconsolidated affiliates 1,246 614 1,417
Settlement of cash flow hedges (493) 0 0
Changes in operating assets and liabilities:      
Accounts receivable (547) (10,955) 5,744
Prepaid expenses and other assets 1,259 1,685 1,575
Accrued straight-line rents receivable (24,510) (29,421) (22,100)
Accounts payable, accrued expenses and other liabilities 3,871 22,217 8,191
Net cash provided by operating activities 386,962 421,779 414,558
Investing activities:      
Investments in acquired real estate and related intangible assets, net of cash acquired (18,544) (224,934) (305,291)
Investments in development in-process (33,848) (44,352) (77,854)
Investments in tenant improvements and deferred leasing costs (112,290) (120,739) (93,654)
Investments in building improvements (64,312) (76,415) (48,405)
Investment in acquired controlling interest in unconsolidated affiliate 0 0 (127,339)
Net proceeds from disposition of real estate assets 101,829 130,038 374,016
Distributions of capital from unconsolidated affiliates 6,594 0 0
Investments in mortgages and notes receivable (14,463) (24) (84)
Repayments of mortgages and notes receivable 9,888 288 301
Investments in and advances to unconsolidated affiliates (132,609) (261,772) (6,079)
Repayments of preferred equity from unconsolidated affiliates 80,000 0 0
Changes in earnest money deposits 15,500 (15,500) 0
Changes in other investing activities (7,431) (1,389) (3,289)
Net cash used in investing activities (169,686) (614,799) (287,678)
Financing activities:      
Distributions on Common Units (214,716) (214,231) (208,896)
Redemptions/repurchases of Preferred Units (10) 0 (5)
Redemptions of Common Units (163) (3,763) 0
Distributions on Preferred Units (2,485) (2,486) (2,486)
Distributions to noncontrolling interests in consolidated affiliates 0 (1,411) (1,342)
Proceeds from the issuance of Common Units 1,741 7,570 23,917
Costs paid for the issuance of Common Units (226) (247) (535)
Repurchase of units related to tax withholdings (1,325) (2,156) (1,718)
Borrowings on revolving credit facility 249,000 675,000 380,000
Repayments of revolving credit facility (615,000) (359,000) (310,000)
Borrowings on mortgages and notes payable 590,352 550,000 200,000
Repayments of mortgages and notes payable (206,726) (456,444) (353,780)
Contributions from noncontrolling interests in consolidated affiliates 320 0 0
Payments for debt issuance costs and other financing activities (6,188) (4,905) (10,081)
Net cash provided by/(used in) financing activities (205,426) 187,927 (284,926)
Net increase/(decrease) in cash and cash equivalents and restricted cash 11,850 (5,093) (158,046)
Cash from deconsolidation of affiliate (6,386) 0 0
Cash and cash equivalents and restricted cash at beginning of the period 26,105 31,198 189,244
Cash and cash equivalents and restricted cash at end of the period 31,569 26,105 31,198
Reconciliation of cash and cash equivalents and restricted cash:      
Cash and cash equivalents at end of the period 25,123 21,357 23,152
Restricted cash at end of the period 6,446 4,748 8,046
Supplemental disclosure of cash flow information:      
Cash paid for interest, net of amounts capitalized 129,764 102,501 79,474
Supplemental disclosure of non-cash investing and financing activities:      
Changes in accrued capital expenditures (1) [2] 2,342 (1,426) (9,843)
Write-off of fully depreciated real estate assets 76,722 58,905 68,307
Write-off of fully amortized leasing costs 36,051 29,083 43,648
Write-off of fully amortized debt issuance costs 1,356 3,292 5,200
Assumption of mortgages and notes payable related to acquisition activities 0 0 403,000
Adjustment of Redeemable Common Units to fair value (16,457) (45,712) (810)
Initial recognition of lease liabilities related to right of use assets 0 0 5,310
Future consideration in connection with the acquisition of land 0 0 16,000
Accrued capital expenditures included in accounts payable, accrued expenses and other liabilities $ 55,700 $ 53,200 $ 56,100
[1] Accrued capital expenditures included in accounts payable, accrued expenses and other liabilities as of December 31, 2023, 2022 and 2021 were $55.7 million, $53.2 million and $56.1 million, respectively.
[2] Accrued capital expenditures included in accounts payable, accrued expenses and other liabilities as of December 31, 2023, 2022 and 2021 were $55.7 million, $53.2 million and $56.1 million, respectively.
v3.24.0.1
Description of Business and Significant Accounting Policies
12 Months Ended
Dec. 31, 2023
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”). As of December 31, 2023, we owned or had an interest in 28.4 million rentable square feet of in-service properties, 1.6 million rentable square feet of office properties under development and development land with approximately 5.2 million rentable square feet of potential office build out.

The Company is the sole general partner of the Operating Partnership. As of December 31, 2023, the Company owned all of the Preferred Units and 105.3 million, or 98.0%, of the Common Units in the Operating Partnership. Limited partners owned the remaining 2.2 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 unitholder 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 2023, the Company redeemed 193,907 Common Units for a like number of shares of Common Stock and 7,294 Common Units for cash. These redemptions increased the percentage of Common Units owned by the Company from 97.8% as of December 31, 2022 to 98.0% as of December 31, 2023.

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. In addition, we consolidate those entities deemed to be variable interest entities in which we are determined to be the primary beneficiary.

As of December 31, 2023, we are involved with six entities we determined to be variable interest entities, one of which we are the primary beneficiary and is consolidated and five of which we are not the primary beneficiary and are not consolidated. We also own three properties through a joint venture investment that were deconsolidated effective January 1, 2023 (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. As of December 31, 2023, a reserve of $0.5 million was recorded to cover estimated reported and unreported claims.

Real Estate and Related Assets

Real estate and related assets 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 range from three to 10 years. Depreciation expense for real estate assets was $253.2 million, $240.3 million and $218.6 million for the years ended December 31, 2023, 2022 and 2021, respectively.

Expenditures directly related to the development and construction of real estate assets are included in net real estate assets and 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 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 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 determined an enforceable contract exists and collection of the consideration to which we are entitled in exchange for transferring the real estate is probable, 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 a separate performance obligation and the allocable sales price is recognized when the separate performance obligation is satisfied.

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”). Our office properties that are under lease are primarily located in Atlanta, Charlotte, Dallas, Nashville, Orlando, 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 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 halfway 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 are, therefore, 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

As of December 31, 2023, our consolidated properties were leased to approximately 1,500 customers. The geographic locations that comprise greater than 10.0% of our rental and other revenues are Atlanta, Charlotte, Nashville, Raleigh and Tampa. Our customers engage in a wide variety of businesses. No single customer generated more than 4% of our consolidated revenues during 2023.

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 generally limit 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 interest expense 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 ease the financial reporting burdens related to the market transition from LIBOR and other interbank offered rates to alternative reference rates, such as the Secured Overnight Financing Rate (“SOFR”). These optional expedients and exceptions provide guidance on contract modifications and hedge accounting. We have completed the transition to SOFR rates for our applicable outstanding debt instruments with no material impact to our Consolidated Financial Statements.

The FASB issued an ASU that will require enhanced segment disclosures, primarily regarding significant segment expenses. The ASU is required to be adopted in our 2024 Annual Report and applied retrospectively to all prior periods presented in the financial statements. We do not expect such adoption to have a material effect on our Notes to Consolidated Financial Statements.
v3.24.0.1
Leases
12 Months Ended
Dec. 31, 2023
Leases [Abstract]  
Leases Leases
Information as Lessor

We recognized rental and other revenues related to operating lease payments of $819.9 million, $816.3 million and $754.9 million, of which variable lease payments were $72.9 million, $69.8 million and $57.3 million, during the years ended December 31, 2023, 2022 and 2021, respectively. The following table sets forth the undiscounted cash flows for future minimum base rents to be received from customers for leases in effect as of December 31, 2023 for our consolidated properties:
2024$707,439 
2025643,857 
2026588,955 
2027527,229 
2028448,428 
Thereafter1,677,371 
$4,593,279 

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 49 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 Accounting Standards Codification (“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 at the time of adoption. 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 of ground lease expense during each of the years ended December 31, 2023, 2022, and 2021, and we paid $2.4 million, $2.4 million and $2.3 million in cash during 2023, 2022 and 2021, respectively.

The following table sets forth the undiscounted cash flows of our scheduled obligations for future minimum payments on operating ground leases as of December 31, 2023 and a reconciliation of those cash flows to the operating lease liability as of December 31, 2023:

2024$2,258 
20252,306 
20262,355 
20272,407 
20282,461 
Thereafter75,341 
87,128 
Discount(54,617)
Lease liability$32,511 

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% at the time of acquisition. 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.
v3.24.0.1
Real Estate Assets
12 Months Ended
Dec. 31, 2023
Real Estate [Abstract]  
Real Estate Assets Real Estate Assets
Acquisitions

During 2023, we acquired land in Raleigh for a purchase price, including capitalized acquisition costs, of $2.7 million.

During 2022, we acquired SIX50 at Legacy Union, a 367,000 square foot trophy office building in Charlotte’s Uptown CBD submarket, for a net purchase price of $198.0 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 2022, we also acquired land in Charlotte for an aggregate purchase price, including capitalized acquisition costs, of $27.0 million.

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 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 was fully paid in or prior to the second quarter of 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.

Dispositions

During 2023, we sold a total of four buildings and various land parcels in Nashville, Raleigh and Tampa for an aggregate sales price of $103.8 million and recorded aggregate gains on disposition of property of $47.8 million.

During 2022, we sold a total of five office buildings and various land parcels in Atlanta, Greensboro, Richmond and Tampa for an aggregate sales price of $133.5 million (before closing credits to buyers of $1.1 million) and recorded aggregate gains on disposition of property of $63.5 million.

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

Seller Financed Transaction

During 2023, we sold a land parcel in Tampa for an aggregate sales price of $21.0 million. In connection with this disposition, we received cash of $2.0 million and provided $19.0 million of non-recourse seller financing in the form of a two-year, interest-only first mortgage that bears interest at SOFR plus 100 basis points. We have deemed repayment of the mortgage to be not probable primarily because the seller financing represents a significant portion of the aggregate sales price and, since the seller financing is non-recourse, our only remedy in the event of a default would be to foreclose on the asset. As a result, the disposition does not meet the contract criteria to be recognized as a sale. Until such time as the contract criteria are met, we will continue to account for the land parcel as land held for development on our Consolidated Balance Sheets, and the mortgage associated with the seller financing will not be recorded on our Consolidated Balance Sheets. The cash received at closing is recorded as a nonrefundable deposit in accounts payable, accrued expenses and other liabilities on our Consolidated Balance Sheets as of December 31, 2023.

Impairments

We recorded the following impairment charges in 2022:

During the third quarter of 2022, we recorded an impairment charge of $1.5 million to lower the carrying amount of a land parcel to its estimated fair value less costs to sell; and
During the second quarter of 2022, we recorded an impairment charge of $35.0 million to lower the carrying amount of EQT Plaza (including accrued straight-line rents receivable and deferred leasing costs) to its estimated fair value less costs to sell. EQT Plaza is a 616,000 square foot office building located in the heart of Pittsburgh’s CBD. EQT Corporation’s lease of 317,000 square feet at EQT Plaza is scheduled to expire in September 2024.
v3.24.0.1
Investments In and Advances To Affiliates
12 Months Ended
Dec. 31, 2023
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 $18.9 million and $2.7 million as of December 31, 2023 and 2022, respectively.

The following table sets forth our ownership in unconsolidated affiliates as of December 31, 2023:
Joint VentureLocationOwnership
Interest
Highwoods-Markel Associates, LLCRichmond50.0%
Granite Park Six JV, LLCDallas50.0%
GPI 23 Springs JV, LLCDallas50.0%
M+O JV, LLCDallas50.0%
Midtown East Tampa, LLCTampa50.0%
Brand/HRLP 2827 Peachtree, LLCAtlanta50.0%
Plaza Colonnade, Tenant-in-CommonKansas City50.0%
Kessinger/Hunter & Company, LCKansas City26.5%

- Highwoods-Markel Associates, LLC (“Markel joint venture”)

In 1999, we formed a joint venture with Markel Corporation in which we own a 50.0% interest. The Markel joint venture was consolidated as of December 31, 2022 because we controlled the major operating and financial policies of the entity. Effective January 1, 2023, the agreement governing the joint venture was modified to require the consent of both partners for major operating and financial policies of the entity. As a result, the Markel joint venture was deconsolidated effective January 1, 2023, and this joint venture is now accounted for using the equity method of accounting. We recognized a gain on deconsolidation of $11.8 million related to adjusting our retained interest in the joint venture to fair value. The assets of the Markel joint venture can only be used to settle obligations of the joint venture, and its creditors have no recourse to our wholly owned assets.

During 2021, prior to the deconsolidation, the Markel joint venture sold land in Richmond for a sale price of $3.0 million and recorded gain on disposition of property of $1.3 million.

- Granite Park Six JV, LLC/ GPI 23 Springs JV, LLC (“Granite Park Six joint venture”/“23Springs joint venture”)

During 2022, we entered the Dallas market through the formation of two joint ventures with Granite Properties (“Granite”) to develop Granite Park Six and 23Springs. In connection with the formation, we agreed to contribute our 50.0% share of the equity required to fund each development project. The Granite Park Six joint venture has an anticipated total investment of $200.0 million and the 23Springs joint venture has an anticipated total investment of $460.0 million. As of December 31, 2023, we have fully funded our share of the equity for the Granite Park Six joint venture and have funded $75.6 million of our share of the equity for the 23Springs joint venture.

The Granite Park Six joint venture obtained a construction loan for $115.0 million, with an interest rate of SOFR plus 394 basis points and a maturity date of January 2026. In connection with this loan, the Granite Park Six joint venture obtained an interest rate hedge contract that effectively caps the underlying SOFR rate at 3.5% with respect to $95.2 million of any outstanding amounts. The cap expires in July 2024. As of December 31, 2023, $54.9 million was drawn on this loan.

The 23Springs joint venture obtained a construction loan for $265.0 million, with an interest rate of SOFR plus 355 basis points and a maturity date of March 2026. In connection with this loan, the 23Springs joint venture obtained an interest rate hedge contract that effectively caps the underlying SOFR rate at 3.5% with respect to $83.0 million of any outstanding amounts. The cap expires in April 2024. As of December 31, 2023, no amounts were drawn on this loan.
We determined that we have a variable interest in both the Granite Park Six and 23Springs joint ventures primarily because the entities were designed to pass along interest rate risk, equity price risk and operation risk to us and Granite as equity holders. The joint ventures were further determined to be variable interest entities as they require additional subordinated financial support in the form of loans because the initial equity investments provided by us and Granite are not sufficient to finance the planned investments and operations. We concluded we do not have the power to direct matters that most significantly impact the activities of either entity and therefore do not qualify as the primary beneficiary. Accordingly, the entities are not consolidated. As of December 31, 2023, our risk of loss with respect to these arrangements was limited to the carrying value of each investment balance. Our investment balances were $41.9 million and $78.7 million as of December 31, 2023 for the Granite Park Six and 23Springs joint ventures, respectively. The assets of the Granite Park Six and 23Springs joint ventures can only be used to settle obligations of the respective joint venture, and their creditors have no recourse to our wholly owned assets.

- M+O JV, LLC (“McKinney & Olive joint venture”)

During 2022, we expanded our Dallas market presence by acquiring McKinney & Olive through the formation of another joint venture with Granite in which we own a 50.0% interest. The McKinney & Olive joint venture has an anticipated total investment of $394.7 million. As part of the transaction, the McKinney & Olive joint venture assumed a secured loan recorded at fair value of $137.0 million, with a stated interest rate of 4.5% and an effective interest rate of 5.3%, that is scheduled to mature in July 2024. The remainder of the purchase price paid by the McKinney & Olive joint venture was funded with $80.0 million of short-term preferred equity contributed by us and $86.4 million of common equity contributed by each of Granite and us.

During 2023, we and Granite each contributed an additional $40.0 million of common equity to the McKinney & Olive joint venture. Such proceeds were then used by the joint venture to redeem our $80.0 million short-term preferred equity investment in full. Prior to the redemption, we received monthly distributions on the preferred equity at a rate of SOFR plus 350 basis points.

We determined that we have a variable interest in the McKinney & Olive joint venture primarily because the entity was designed to pass along interest rate risk, equity price risk and operation risk to us and Granite as equity holders. The McKinney & Olive 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 investments by us and Granite, including the additional preferred equity provided by us, are not sufficient to finance its planned investments and operations. 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 is not consolidated. As of December 31, 2023, our risk of loss with respect to this arrangement was $118.6 million, which represents the carrying value of our investment balance. The redemption of the preferred equity during 2023 was a reconsideration event that did not change our initial conclusion that the McKinney & Olive joint venture is a variable interest entity of which were are not the primary beneficiary. As such, the entity remains unconsolidated. The assets of the McKinney & Olive joint venture can only be used to settle obligations of the joint venture, and its creditors have no recourse to our wholly owned assets.

- Midtown East Tampa, LLC (“Midtown East joint venture”)

During 2022, we formed a joint venture with The Bromley Companies (“Bromley”) in which we own a 50.0% interest to construct Midtown East, a multi-customer office development project located in the mixed-use Midtown Tampa project in Tampa’s Westshore submarket. Upon completion, the Midtown East joint venture will own 143,000 square feet of an overall 432,000 square foot tower. The rest of Midtown East will be owned by and serve as the future headquarters of Tampa Electric and Peoples Gas. The total anticipated investment for the Midtown East joint venture’s share of the overall project is $83.0 million. In connection with the formation, we agreed to contribute our 50.0% share of the equity required to fund the development project, $13.7 million of which was funded as of December 31, 2023. We also committed to provide a $52.3 million interest-only secured construction loan to the Midtown East joint venture that is scheduled to mature on the third anniversary of completion. The loan bears interest at SOFR plus 450 basis points. As of December 31, 2023, no amounts were drawn on this loan.

We determined that we have a variable interest in the Midtown East joint venture primarily because the entity was designed to pass along interest rate risk, equity price risk and operation risk to us, both as a debt and an equity holder, and to Bromley as an equity holder. The Midtown East 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 investments provided by us and Bromley are not sufficient to finance its planned investments and operations. 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 is not consolidated. As of December 31, 2023, our risk of loss with respect to this arrangement was limited to the carrying value of the investment balance of $13.6 million as no amounts were outstanding under the loan. The assets of the Midtown East joint venture can only be used to settle obligations of the joint venture, and its creditors have no recourse to our wholly owned assets.

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

During 2021, we formed a joint venture with Brand Properties, LLC (“Brand”) to construct 2827 Peachtree, a 135,000 square foot, multi-customer office building located in Atlanta’s Buckhead submarket. The 2827 Peachtree joint venture has an anticipated total investment of $79.0 million. At closing, we agreed to contribute cash of $13.3 million, which has been fully funded, in exchange for a 50.0% interest in the 2827 Peachtree joint venture. Brand contributed land valued at $7.7 million and cash of $5.6 million in exchange for the remaining 50.0% interest. We have provided a $52.8 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 SOFR plus 310 basis points. As of December 31, 2023, $46.9 million was drawn on this loan.

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, both as a debt and an equity holder, and to 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 investments provided by us and Brand are not sufficient to finance its planned investments and operations. 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 is not consolidated. As of December 31, 2023, our risk of loss with respect to this arrangement was $60.3 million, which consists of the $13.4 million carrying value of our investment balance plus the $46.9 million outstanding balance of the loan. The outstanding balance on the loan is recorded in investments in and advances to unconsolidated affiliates on our Consolidated Balance Sheets. The assets of the 2827 Peachtree joint venture can only be used 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, 2023, 2022 and 2021, we recognized $1.0 million, $0.6 million and $1.6 million, respectively, of development/construction, management and leasing fees from our unconsolidated joint ventures.

Consolidated Affiliate

- HRLP MTW, LLC (“Midtown West joint venture”)

In 2019, we and Bromley formed a joint venture to construct Midtown West, a 152,000 square foot, multi-customer office building located in the mixed-use Midtown Tampa project in Tampa’s Westshore submarket. 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 West joint venture, and Bromley contributed land valued at $5.0 million in exchange for the remaining 20.0% interest. We also provided a $46.3 million interest-only secured construction loan to the Midtown West joint venture. All of the amounts outstanding under this loan were repaid in the fourth quarter of 2023.

During 2023, the Midtown West joint venture obtained a $45.0 million, five-year secured mortgage loan from a third party lender, with an effective fixed rate of 7.29%. This loan is scheduled to mature in November 2028. The joint venture incurred $0.8 million of debt issuance costs, which will be amortized over the term of the loan. The net proceeds were used by the joint venture to repay in full the secured construction loan we provided, as discussed above.

We determined that we have a variable interest in the Midtown West joint venture primarily because the entity was designed to pass along interest rate risk, equity price risk and operation risk to us, both as a debt and an equity holder, and to Bromley as an equity holder. The Midtown West 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 investments provided by us and Bromley are 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. The joint venture obtaining a loan from a third party during 2023, as discussed above, was a reconsideration event that did not change our initial conclusion that the Midtown West joint venture is a variable interest entity of which we are the primary beneficiary. As such, the entity remains consolidated and all intercompany transactions and accounts are eliminated. The following table sets forth the assets and liabilities of the Midtown West joint venture included on our Consolidated Balance Sheets:

December 31,
20232022
Net real estate assets$60,410 $59,854 
Cash and cash equivalents $1,096 $1,009 
Restricted cash$2,260 $— 
Accounts receivable$31 $1,490 
Accrued straight-line rents receivable $5,041 $1,921 
Deferred leasing costs, net$2,783 $2,677 
Prepaid expenses and other assets$124 $153 
Mortgages and notes payable, net$44,192 $— 
Accounts payable, accrued expenses and other liabilities$2,872 $1,212 

The assets of the Midtown West joint venture can only be used to settle obligations of the joint venture, and its creditors have no recourse to our wholly owned assets.

Joint Venture Rights and Obligations

With respect to some of our joint ventures, we have a right to buy, and our joint venture partner has a right to sell to us, such joint venture partner’s interest under certain circumstances for fair market value (less estimated costs to sell) during various timeframes in the future. For our Granite Park Six joint venture, such rights are exercisable during the two-year period commencing on the 10th anniversary of the completion date. For each of our 23Springs and McKinney & Olive joint ventures, such rights are exercisable during the two-year period commencing on the 12th anniversary of the stabilization date of 23Springs. For our 2827 Peachtree joint venture, such rights are exercisable during the two-year period commencing on the earlier of: (1) the stabilization date; (2) the seventh anniversary of the completion date; and (3) the maturity of the loan provided by us to the joint venture. For our Midtown West joint venture, our right to buy our partner’s interest is exercisable during the two-year period commencing on the seventh anniversary of the completion date, and our partner’s right to sell its interest to us is exercisable during the period commencing on the stabilization date and ending on the ninth anniversary of the completion date.

In addition to the foregoing, with respect to our Granite Park Six, 23Springs and Midtown West joint ventures, our joint venture partner has the right to receive additional consideration from us or the joint venture under certain circumstances if and to the extent the internal rate of return on the applicable development project exceeds certain thresholds.
v3.24.0.1
Intangible Assets and Below Market Leaes Liabilities
12 Months Ended
Dec. 31, 2023
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,
20232022
Assets:
Deferred leasing costs (including lease incentives and above market lease and in-place lease acquisition-related intangible assets)
$401,621 $416,579 
Less accumulated amortization(175,697)(163,751)
$225,924 $252,828 
Liabilities (in accounts payable, accrued expenses and other liabilities):
Acquisition-related below market lease liabilities$50,842 $55,304 
Less accumulated amortization(30,416)(29,859)
$20,426 $25,445 

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

Year Ended December 31,
202320222021
Amortization of deferred leasing costs and acquisition-related intangible assets (in depreciation and amortization)
$43,511 $44,900 $38,173 
Amortization of lease incentives (in rental and other revenues)$2,816 $2,090 $1,885 
Amortization of acquisition-related intangible assets (in rental and other revenues)
$3,338 $3,320 $1,932 
Amortization of acquisition-related below market lease liabilities (in rental and other revenues)
$(5,019)$(5,452)$(5,720)

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)
2024$39,896 $2,279 $3,066 $(4,240)
202531,612 1,977 2,210 (2,727)
202627,323 1,744 1,861 (2,431)
202723,539 1,543 1,520 (2,062)
202819,684 1,298 1,404 (1,648)
Thereafter57,353 3,428 4,187 (7,318)
$199,407 $12,269 $14,248 $(20,426)
Weighted average remaining amortization periods as of December 31, 2023 (in years)7.47.27.18.1
v3.24.0.1
Mortgages and Notes Payable
12 Months Ended
Dec. 31, 2023
Debt Disclosure [Abstract]  
Mortgages and Notes Payable Mortgages and Notes Payable
Our mortgages and notes payable consisted of the following:
December 31,
20232022
Secured indebtedness (1):
5.69% mortgage loan due 2028$200,000 $— 
7.29% mortgage loan due 2028 (2)
45,000 — 
4.27% (3.61% effective rate) mortgage loan due 2028 (3)
110,391 113,105 
4.00% mortgage loan due 202987,003 89,204 
3.61% (3.19% effective rate) mortgage loan due 2029 (4)
84,360 84,666 
3.40% (3.50% effective rate) mortgage loan due 2033 (5)
69,524 69,473 
4.60% (3.73% effective rate) mortgage loan due 2037 (6)
124,474 127,540 
720,752 483,988 
Unsecured indebtedness:
3.875% (4.038% effective rate) notes due 2027 (7)
298,734 298,334 
4.125% (4.271% effective rate) notes due 2028 (8)
348,276 347,863 
4.200% (4.234% effective rate) notes due 2029 (9)
349,484 349,386 
3.050% (3.079% effective rate) notes due 2030 (10)
399,400 399,302 
2.600% (2.645% effective rate) notes due 2031 (11)
398,892 398,735 
7.650% (7.836% effective rate) notes due 2034 (12)
345,407 — 
Variable rate term loan due 2026 (13)
200,000 200,000 
Variable rate term loan due 2027 (13)
150,000 150,000 
Variable rate term loan due 2024 (14)
— 200,000 
Revolving credit facility due 2025 (15)
20,000 386,000 
2,510,193 2,729,620 
Less-unamortized debt issuance costs(17,739)(16,393)
Total mortgages and notes payable, net$3,213,206 $3,197,215 
__________
(1)Our secured mortgage loans were collateralized by real estate assets with an undepreciated book value of $1,237.6 million as of December 31, 2023. We paid down $6.7 million of secured loan balances through principal amortization during 2023.
(2)The borrower under this loan is our Midtown West joint venture, a consolidated 80.0% owned joint venture. See Note 4.
(3)Net of unamortized fair market value premium of $2.7 million and $3.3 million as of December 31, 2023 and 2022, respectively.
(4)Net of unamortized fair market value premium of $1.7 million and $2.0 million as of December 31, 2023 and 2022, respectively.
(5)Net of unamortized fair market value discount of $0.5 million as of both December 31, 2023 and 2022.
(6)Net of unamortized fair market value premium of $8.6 million and $9.3 million as of December 31, 2023 and 2022, respectively.
(7)Net of unamortized original issuance discount of $1.3 million and $1.7 million as of December 31, 2023 and 2022, respectively.
(8)Net of unamortized original issuance discount of $1.7 million and $2.1 million as of December 31, 2023 and 2022, respectively.
(9)Net of unamortized original issuance discount of $0.5 million and $0.6 million as of December 31, 2023 and 2022, respectively.
(10)Net of unamortized original issuance discount of $0.6 million and $0.7 million as of December 31, 2023 and 2022, respectively.
(11)Net of unamortized original issuance discount of $1.1 million and $1.3 million as of December 31, 2023 and 2022, respectively.
(12)Net of unamortized original issuance discount of $4.6 million as of December 31, 2023.
(13)The interest rate was 6.35% as of December 31, 2023.
(14)This loan was repaid in full as of December 31, 2023.
(15)The interest rate was 6.25% as of December 31, 2023.
The following table sets forth scheduled future principal payments, including amortization, due on our mortgages and notes payable as of December 31, 2023:
Years Ending December 31,Amount
2024$6,944 
202527,156 
2026206,922 
2027458,976 
2028699,168 
Thereafter1,831,779 
Less-unamortized debt issuance costs(17,739)
$3,213,206 

As of December 31, 2023,our $750.0 million unsecured revolving credit facility was scheduled to mature in March 2025. The interest rate on our revolving credit facility was SOFR plus a related spread adjustment of 10 basis points and a borrowing spread of 85 basis points, based on current credit ratings. The annual facility fee was 20 basis points. The interest rate and facility fee were based on the higher of the publicly announced ratings from Moody’s Investors Service or Standard & Poor’s Ratings Services. We were entitled to a temporary reduction in the interest rate of one basis point provided we meet certain sustainability goals with respect to the ongoing reduction of greenhouse gas emissions. As of December 31, 2023, there was $20.0 million outstanding under our revolving credit facility and $0.9 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 as of December 31, 2023 was $729.1 million.

During 2023, the Operating Partnership issued $350.0 million aggregate principal amount of 7.650% notes due February 2034, less original issuance discount of $4.6 million. These notes were priced to yield 7.836%. Previously during 2023, we obtained an aggregate of $200.0 million notional amount of forward-starting swaps that effectively locked the underlying 10-year treasury rate at 4.498%. Upon the subsequent issuance of the notes, we terminated the forward-starting swaps and paid cash upon settlement. The unrealized loss of $0.5 million will be classified to interest expense as interest payments are made on the debt. Underwriting fees and other expenses totaled $3.2 million and will be amortized over the term of the notes. The net proceeds from the issuance were used: (1) to prepay, without penalty, a $200.0 million unsecured bank term loan that was scheduled to mature in October 2024; (2) to repay amounts outstanding under our revolving credit facility; and (3) for general corporate purposes. We recorded $0.6 million of loss on debt extinguishment related to the term loan prepayment.

During 2023, we obtained a $200.0 million, five-year secured mortgage loan from a third party lender, with an effective fixed interest rate of 5.69%. This loan is scheduled to mature in April 2028. We incurred $1.3 million of debt issuance costs, which will be amortized over the term of the loan.

During 2022, we obtained a $200.0 million, two-year unsecured bank term loan that was originally scheduled to mature in October 2024. This loan was prepaid in full without penalty during the fourth quarter of 2023. The interest rate, based on current credit ratings, was SOFR plus a related spread adjustment of 10 basis points and a borrowing spread of 95 basis points. The interest rate was based on the higher of the publicly announced ratings from Moody’s Investors Service or Standard & Poor’s Ratings Services. We were entitled to a temporary reduction in the interest rate of one basis point provided we met certain sustainability goals with respect to the ongoing reduction of greenhouse gas emissions. We used the additional $200.0 million of borrowings, together with available cash and borrowings under our revolving credit facility, to prepay without penalty $250.0 million principal amount of 3.625% unsecured notes that were scheduled to mature in January 2023.

During 2022, we modified our other $200.0 million unsecured bank term loan to extend the maturity date from November 2022 to May 2026. As part of this modification, we also obtained a $150.0 million delayed-draw term loan, which was drawn in its entirety in the third quarter of 2022, that is scheduled to mature in May 2027. The interest rate, based on current credit ratings, is SOFR plus a related spread adjustment of 10 basis points and a borrowing spread of 95 basis points. The interest rate is based on the higher of the publicly announced ratings from Moody’s Investors Service or Standard & Poor’s Ratings Services. Subject to written consent of the lenders, we may elect to amend this term loan no later than May 15, 2024 to provide that the interest rate may be adjusted upward or downward by up to 2.5 basis points subject to satisfaction of certain to-be-determined sustainability goals with respect to the ongoing reduction of greenhouse gas emissions. We incurred $2.7 million of debt issuance costs, which are being amortized along with certain existing unamortized debt issuance costs over the remaining term of our modified term loan.
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 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. We incurred $1.0 million of debt issuance costs related to this bridge facility which were being amortized over the six-month term. This bridge facility was prepaid in full without penalty prior to December 31, 2021. 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.

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 fixed the underlying one-month LIBOR rate at a weighted average rate of 1.693%. During 2022, these interest rate swaps expired.

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 $2,140.2 million carrying amount of various notes outstanding as detailed in the table above. 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 6, 2024 (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. Importantly, we have no scheduled debt maturities during such one-year period. 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 wholly-owned and joint venture development and significant building and tenant improvement projects was $9.0 million, $4.0 million and $9.6 million for the years ended December 31, 2023, 2022 and 2021, respectively.
v3.24.0.1
Commitments and Contingencies
12 Months Ended
Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]  
Commitments and Contingencies Commitments and Contingencies
Lease and Contractual Commitments

We have $204.3 million of lease and contractual commitments as of December 31, 2023. Lease and contractual commitments represent commitments under signed leases and contracts for operating properties (excluding tenant-funded tenant improvements), contracts for development/redevelopment projects and unfunded joint venture equity contributions agreed to at formation, of which $50.7 million was recorded on our Consolidated Balance Sheet as of December 31, 2023.

Contingent Consideration

We had $0.8 million of contingent consideration related to a parcel of acquired development land as of both December 31, 2023 and 2022. 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

From time to time, we are 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 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.

Joint Venture Buyout Rights and Obligations

With respect to certain of our joint ventures, we have a right to buy, and our joint venture partner has a right to sell to us, such joint venture partner's interest under certain circumstances for fair market value (less estimated costs to sell) at various timeframes in the future. See Note 4.

In addition, with respect to certain of our joint ventures, our joint venture partner has a right to receive additional consideration from us or the joint venture under certain circumstances if and to the extent the internal rate of return on the applicable development project exceeds certain thresholds. See Note 4.
v3.24.0.1
Noncontrolling Interests
12 Months Ended
Dec. 31, 2023
Noncontrolling Interest [Abstract]  
Noncontrolling Interests Noncontrolling Interests
Noncontrolling Interests in Consolidated Affiliates

As of December 31, 2023, our noncontrolling interests in consolidated affiliates relate to our joint venture partner’s 20.0% interest in the Midtown West joint venture. See Note 4. Our joint venture partner is an unrelated third party.

Noncontrolling Interests in the Operating Partnership

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

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

Year Ended December 31,
20232022
Beginning noncontrolling interests in the Operating Partnership$65,977 $111,689 
Adjustment of noncontrolling interests in the Operating Partnership to fair value(10,152)(39,502)
Conversions of Common Units to Common Stock(4,795)(1,251)
Redemptions of Common Units(163)(3,763)
Net income attributable to noncontrolling interests in the Operating Partnership3,164 3,670 
Distributions to noncontrolling interests in the Operating Partnership(4,511)(4,866)
Total noncontrolling interests in the Operating Partnership$49,520 $65,977 

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,
202320222021
Net income available for common stockholders$146,230 $156,572 $310,791 
Increase in additional paid in capital from conversions of Common Units to Common Stock4,795 1,251 15,076 
Redemptions of Common Units163 3,763 — 
Change from net income available for common stockholders and transfers from noncontrolling interests$151,188 $161,586 $325,867 
v3.24.0.1
Disclosure About Fair Value of Financial Instruments
12 Months Ended
Dec. 31, 2023
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 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 as of December 31, 2023:
Assets:
Mortgages and notes receivable, at fair value (1)
$4,795 $— $4,795 
Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets)
2,294 2,294 — 
Total Assets$7,089 $2,294 $4,795 
Noncontrolling Interests in the Operating Partnership$49,520 $49,520 $— 
Liabilities:
Mortgages and notes payable, net, at fair value (1)
$2,927,330 $— $2,927,330 
Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities)
2,294 2,294 — 
Total Liabilities$2,929,624 $2,294 $2,927,330 
Fair Value as of December 31, 2022:
Assets:
Mortgages and notes receivable, at fair value (1)
$1,051 $— $1,051 
Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets)
2,564 2,564 — 
Total Assets$3,615 $2,564 $1,051 
Noncontrolling Interests in the Operating Partnership$65,977 $65,977 $— 
Liabilities:
Mortgages and notes payable, net, at fair value (1)
$2,832,973 $— $2,832,973 
Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities)
2,564 2,564 — 
Total Liabilities$2,835,537 $2,564 $2,832,973 
__________
(1)    Amounts are not recorded at fair value on our Consolidated Balance Sheets as of December 31, 2023 and 2022.

At various points throughout 2022, there were Level 3 impaired real estate assets resulting from the shortened hold period assumptions for certain assets in Pittsburgh, which included the following:

a land parcel measured at a fair value of $1.7 million in the third quarter of 2022. This impairment resulted from the changes in our assumptions about the use of the asset as a result of our plan to exit the Pittsburgh market and was calculated using broker opinions of value, as observable inputs were not available; and

EQT Plaza, an in-service office building measured at a fair value of $57.4 million in the second quarter of 2022. This impairment resulted from the shortened hold period assumptions for the asset as a result of our plan to exit the Pittsburgh market. The estimated fair value was calculated using broker opinions of value, which incorporate an income approach, as observable inputs were not available. Key assumptions used in the impairment calculation were estimated selling costs of 3.5% (including seller’s share of anticipated transfer taxes), the high end of an estimated discount rate ranging from 13.2% to 16.2% and an estimated terminal capitalization rate of 8.0%.
v3.24.0.1
Equity
12 Months Ended
Dec. 31, 2023
Equity [Abstract]  
Equity Equity
Common Stock Issuances

During 2023, 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. There were no shares issued under these agreements in 2023. During 2022, the Company issued 130,011 shares of Common Stock under its equity distribution agreements at an average gross sales price of $46.50 per share and received net proceeds, after sales commissions, of $6.0 million. As of December 31, 2023, the Company had 94.3 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 were $2.00, $2.00 and $1.96 for the years ended December 31, 2023, 2022 and 2021, 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,
202320222021
Ordinary dividend$1.58 $1.82 $1.87 
Capital gains0.42 0.18 0.09 
Total$2.00 $2.00 $1.96 

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 as of both December 31, 2023 and 2022 :

Issue DateNumber of Shares OutstandingCarrying ValueLiquidation Preference Per ShareOptional Redemption DateAnnual Dividends Payable Per Share
(in thousands)
8.625% Series A Cumulative Redeemable2/12/199729 $28,811 $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,
202320222021
8.625% Series A Cumulative Redeemable:
Ordinary dividend$68.02 $78.48 $82.38 
Capital gains18.23 7.77 3.87 
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

As of both December 31, 2023 and 2022, 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 were $2.00, $2.00 and $1.96 for the years ended December 31, 2023, 2022 and 2021, 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 as of both December 31, 2023 and 2022:

Issue DateNumber of
Units
Outstanding
Carrying
Value
Liquidation Preference
Per Unit
Optional Redemption
Date
Annual
Distributions
Payable
Per Unit
(in thousands)
8.625% Series A Cumulative Redeemable2/12/199729 $28,811 $1,000 2/12/2027$86.25 
v3.24.0.1
Employee Benefit Plans
12 Months Ended
Dec. 31, 2023
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 35% to 140% 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,
20232022
Outstanding stock options and warrants527,067 527,067 
Possible future issuance under equity incentive plans2,537,816 2,817,293 
3,064,883 3,344,360 

Of the possible future issuance under the Company’s long-term equity incentive plans as of December 31, 2023, no more than an additional 0.5 million shares can be in the form of restricted stock.

During the years ended December 31, 2023, 2022 and 2021, we recognized share-based compensation expense of $7.0 million, $7.6 million and $8.6 million, respectively. Because REITs generally do not pay income taxes, we do not realize tax benefits on share-based payments. As of December 31, 2023, there was $4.0 million of total unrecognized share-based compensation costs, which will be recognized over a weighted average remaining contractual term of 2.0 years.

- Stock Options

Outstanding stock options 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 as of December 31, 2020537,373 $46.07 
Exercised(25,306)43.76 
Stock options outstanding as of December 31, 2021 (1)
512,067 46.18 
__________
(1)There were no options granted, canceled, exercised or forfeited during the years ended December 31, 2023 and 2022. The Company had 512,067 options exercisable as of December 31, 2023, 2022 and 2021, respectively, with a weighted average exercise price of $46.18 at each date. As of December 31, 2023 and 2022, these options had a weighted average remaining life of 2.0 years and 3.0 years, respectively, and all had exercise prices higher than the market price of our common stock.

No options were exercised during the years ended December 31, 2023 and 2022, respectively. Cash received or receivable from options exercised was $1.1 million for the year ended December 31, 2021. The total intrinsic value of options exercised during the year ended December 31, 2021 was $0.1 million. The total intrinsic value of options outstanding as of December 31, 2021 was $0.6 million. 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 as of 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 as of December 31, 2021219,719 42.63 
Awarded and issued (1)
99,975 43.58 
Vested (2)
(101,082)42.80 
Forfeited(779)42.37 
Restricted shares outstanding as of December 31, 2022217,833 43.00 
Awarded and issued (1)
155,717 26.42 
Vested (2)
(95,423)43.57 
Forfeited(1,819)34.11 
Restricted shares outstanding as of December 31, 2023276,308 $33.51 
__________
(1)The weighted average fair value at grant date of time-based restricted stock issued during the years ended December 31, 2023, 2022 and 2021 was $4.1 million, $4.4 million and $4.1 million, respectively.
(2)The vesting date fair value of time-based restricted stock that vested during the years ended December 31, 2023, 2022 and 2021 was $2.5 million, $4.4 million and $3.6 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 2022, notwithstanding the Company’s absolute total return, if the Company’s total return exceeds 100% of the average peer group total return index, 100% of total return-based restricted stock issued will vest at the end of the applicable period. For total return-based restricted stock issued since 2022, notwithstanding the Company’s absolute total return, if the Company’s total return is in the 50th percentile or greater as compared to all of the companies included in the FTSE NAREIT Equity Office Index, 100% of total return-based restricted stock issued will vest at the end of the applicable period. The weighted average grant date fair value of such shares of total return-based restricted stock issued in 2023, 2022 and 2021 was determined to be $27.06, $41.94 and $36.41, 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:
202320222021
Risk free interest rate (1) 
4.4 %1.6 %0.3 %
Common stock dividend yield (2) 
6.9 %4.5 %4.8 %
Expected volatility (3) 
27.2 %25.8 %26.8 %
__________
(1)Represents the interest rate as of the grant date on US treasury bonds having the same life as the estimated life of the total return-based restricted stock grants.
(2)The dividend yield is calculated utilizing the then current regular dividend rate for a one-year period and the average per share price of Common Stock during the three-month period preceding the date of grant.
(3)Based on the historical volatility of Common Stock over a period relevant to the related total return-based restricted stock grant.

The following table sets forth total return-based restricted stock activity:
Number of SharesWeighted Average Grant Date Fair Value
Restricted shares outstanding as of 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 as of December 31, 2021229,292 38.00 
Awarded and issued (1)
81,832 41.94 
Vested (2)
(62,985)45.90 
Forfeited (3)
(20,995)45.90 
Restricted shares outstanding as of December 31, 2022227,144 38.93 
Awarded and issued (1)
126,736 27.06 
Vested (2)
(65,140)44.88 
Forfeited (3)
(2,148)35.83 
Restricted shares outstanding as of December 31, 2023286,592 $34.03 
__________
(1)The fair value at grant date of total return-based restricted stock issued during the years ended December 31, 2023, 2022 and 2021 was $3.4 million, $3.4 million and $2.9 million, respectively, at target.
(2)The vesting date fair value of total return-based restricted stock that vested during the years ended December 31, 2023, 2022 and 2021 was $1.7 million, $2.7 million and $2.2 million, respectively, based on the performance of the specific plans. Vested shares include those shares surrendered by employees to satisfy tax withholding obligations in connection with such vesting.
(3)The 2022 and 2021 amounts include 20,995 and 18,484 shares, respectively, that were forfeited at the end of the applicable measurement period because the applicable total return did not meet targeted levels. No shares were forfeited in 2023.
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, 2023, 2022 and 2021, we contributed $1.4 million, $1.4 million and $1.3 million, respectively, to the 401(k) savings plan. The assets of this qualified plan are not included in our Consolidated Financial Statements since the assets are not owned by us.

Retirement Plan

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

Deferred Compensation

Prior to 2010, officers could elect to defer all or a portion of their cash compensation, which was then invested in unrelated mutual funds under a non-qualified deferred compensation plan. These investments are recorded at fair value, which aggregated $2.3 million and $2.6 million as of December 31, 2023 and 2022, 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,
202320222021
Beginning deferred compensation liability$2,564 $2,866 $2,573 
Mark-to-market adjustment to deferred compensation (in general and administrative expenses)
243 (302)293 
Distributions from deferred compensation plans(513)— — 
Total deferred compensation liability$2,294 $2,564 $2,866 

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, 2023, 2022 and 2021, the Company issued 77,086, 46,656 and 38,460 shares, respectively, of Common Stock under the ESPP. The 15% discount on newly issued shares, which is taxable income to the participants and is recorded by us as additional compensation expense, aggregated $0.3 million, $0.2 million and $0.2 million in the years ended December 31, 2023, 2022 and 2021, respectively. Generally, shares purchased under the ESPP must be held for at least one year. The Company satisfies its ESPP obligations by issuing additional shares of Common Stock.
v3.24.0.1
Earnings Per Share and Per Unit
12 Months Ended
Dec. 31, 2023
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,
202320222021
Earnings per Common Share - basic:
Numerator:
Net income$151,330 $163,958 $323,310 
Net (income) attributable to noncontrolling interests in the Operating Partnership(3,164)(3,670)(8,321)
Net (income)/loss attributable to noncontrolling interests in consolidated affiliates549 (1,230)(1,712)
Dividends on Preferred Stock(2,485)(2,486)(2,486)
Net income available for common stockholders$146,230 $156,572 $310,791 
Denominator:
Denominator for basic earnings per Common Share – weighted average shares (1)
105,529 105,120 104,232 
Net income available for common stockholders$1.39 $1.49 $2.98 
Earnings per Common Share - diluted:
Numerator:
Net income$151,330 $163,958 $323,310 
Net (income)/loss attributable to noncontrolling interests in consolidated affiliates549 (1,230)(1,712)
Dividends on Preferred Stock(2,485)(2,486)(2,486)
Net income available for common stockholders before net (income) attributable to noncontrolling interests in the Operating Partnership$149,394 $160,242 $319,112 
Denominator:
Denominator for basic earnings per Common Share – weighted average shares (1)
105,529 105,120 104,232 
Add:
Stock options using the treasury method— 18 
Noncontrolling interests Common Units2,256 2,442 2,811 
Denominator for diluted earnings per Common Share – adjusted weighted average shares and assumed conversions107,785 107,567 107,061 
Net income available for common stockholders$1.39 $1.49 $2.98 
__________
(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,
202320222021
Earnings per Common Unit - basic:
Numerator:
Net income$151,330 $163,958 $323,310 
Net (income)/loss attributable to noncontrolling interests in consolidated affiliates549 (1,230)(1,712)
Distributions on Preferred Units(2,485)(2,486)(2,486)
Net income available for common unitholders$149,394 $160,242 $319,112 
Denominator:
Denominator for basic earnings per Common Unit – weighted average units (1)
107,376 107,153 106,634 
Net income available for common unitholders$1.39 $1.50 $2.99 
Earnings per Common Unit - diluted:
Numerator:
Net income$151,330 $163,958 $323,310 
Net (income)/loss attributable to noncontrolling interests in consolidated affiliates549 (1,230)(1,712)
Distributions on Preferred Units(2,485)(2,486)(2,486)
Net income available for common unitholders$149,394 $160,242 $319,112 
Denominator:
Denominator for basic earnings per Common Unit – weighted average units (1)
107,376 107,153 106,634 
Add:
Stock options using the treasury method— 18 
Denominator for diluted earnings per Common Unit – adjusted weighted average units and assumed conversions107,376 107,158 106,652 
Net income available for common unitholders$1.39 $1.50 $2.99 
__________
(1)Includes all unvested restricted stock where distributions on such restricted stock are non-forfeitable.
v3.24.0.1
Income Taxes
12 Months Ended
Dec. 31, 2023
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 $1.42, $1.60 and $1.61 per share in 2023, 2022 and 2021, 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 $5.6 billion and $3.5 billion, respectively, as of December 31, 2023 and $5.6 billion and $3.5 billion, respectively, as of December 31, 2022. The tax basis of the Operating Partnership’s assets (net of accumulated tax depreciation and amortization) and liabilities was approximately $5.4 billion and $3.5 billion, respectively, as of December 31, 2023 and $5.4 billion and $3.5 billion, respectively, as of December 31, 2022.

During the years ended December 31, 2023, 2022 and 2021, 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 Company had no net deferred tax asset or liability as of December 31, 2023 or December 31, 2022.
For the years ended December 31, 2023 and 2022, there were no unrecognized tax benefits. The Company is subject to federal, state and local income tax examinations by taxing authorities for 2020 through 2023. The Company does not expect that the total amount of unrecognized benefits will materially change within the next year.
v3.24.0.1
Segment Information
12 Months Ended
Dec. 31, 2023
Segment Reporting [Abstract]  
Segment Information Segment Information
Our principal business is the operation, acquisition and development of rental office 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 rental and other revenues, net operating income and total assets for our office properties. Net operating income is the primary industry property-level performance metric used by our chief operating decision maker and is defined as rental and other revenues less rental property and other expenses.

Year Ended December 31,
202320222021
Rental and Other Revenues:
Atlanta$143,741 $143,904 $143,612 
Charlotte85,984 73,721 49,347 
Nashville171,797 174,341 149,674 
Orlando58,002 54,802 51,281 
Raleigh181,964 182,990 162,115 
Richmond35,918 43,084 45,941 
Tampa99,421 94,726 97,954 
Total Office Segment776,827 767,568 699,924 
Other57,170 61,361 68,083 
Total Rental and Other Revenues$833,997 $828,929 $768,007 
Net Operating Income:
Atlanta$89,700 $92,297 $94,122 
Charlotte63,921 55,689 38,464 
Nashville125,417 129,217 110,039 
Orlando35,162 32,331 31,301 
Raleigh132,262 134,904 121,005 
Richmond24,756 28,879 31,726 
Tampa62,382 59,691 64,396 
Total Office Segment533,600 533,008 491,053 
Other 31,615 36,115 40,518 
Total Net Operating Income565,215 569,123 531,571 
Reconciliation to net income:
Depreciation and amortization(299,411)(287,610)(259,255)
Impairments of real estate assets— (36,515)— 
General and administrative expenses(42,857)(42,266)(40,553)
Interest expense(136,710)(105,385)(85,853)
Other income4,435 1,530 1,394 
Gains on disposition of property47,773 63,546 174,059 
Gain on deconsolidation of affiliate11,778 — — 
Equity in earnings of unconsolidated affiliates1,107 1,535 1,947 
Net income$151,330 $163,958 $323,310 
December 31,
20232022
Total Assets:
Atlanta$907,421 $928,406 
Charlotte974,846 984,075 
Nashville1,259,272 1,290,819 
Orlando286,781 287,950 
Raleigh1,255,978 1,288,878 
Richmond157,299 196,435 
Tampa473,800 493,966 
Total Office Segment5,315,397 5,470,529 
Other687,531 592,847 
Total Assets$6,002,928 $6,063,376 
v3.24.0.1
Subsequent Events
12 Months Ended
Dec. 31, 2023
Subsequent Events [Abstract]  
Subsequent Events Subsequent Events
Our $750.0 million unsecured revolving credit facility was modified on January 25, 2024 and is now scheduled to mature in January 2028 (but can be extended for two additional six-month periods at our option assuming no defaults have occurred). The interest rate on our newly modified revolving credit facility remains SOFR plus a related spread adjustment of 10 basis points and a borrowing spread of 85 basis points, based on current credit ratings and the annual facility fee remains 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. Subject to written consent of the lenders, we may elect to amend the newly modified revolving credit facility no later than May 15, 2024 to provide that the interest rate may be adjusted upward or downward by up to 2.5 basis points subject to satisfaction of certain to-be-determined sustainability goals with respect to the ongoing reduction of greenhouse gas emissions. The financial and other covenants under our newly modified facility are substantially similar to our previous credit facility. We expect to incur $7.9 million of debt issuance costs, which will be amortized along with certain existing unamortized debt issuance costs over the remaining term of our new revolving credit facility. We expect to record $0.2 million of loss on debt extinguishment. As of January 26, 2024, there was $36.0 million outstanding under our revolving credit facility and $0.9 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 as of January 26, 2024 was $713.1 million.

On January 31, 2024, the Company declared a cash dividend of $0.50 per share of Common Stock, which is payable on March 12, 2024 to stockholders of record as of February 20, 2024.
v3.24.0.1
Schedule III
12 Months Ended
Dec. 31, 2023
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,
202320222021
Real estate assets:
Beginning balance$6,689,692 $6,486,136 $5,594,833 
Acquisitions, development and improvements226,066 378,587 1,248,256 
Cost of real estate sold, retired and deconsolidated(187,755)(175,031)(356,953)
Ending balance (a)$6,728,003 $6,689,692 $6,486,136 
Accumulated depreciation:
Beginning balance$1,609,502 $1,457,511 $1,421,956 
Depreciation expense253,151 240,273 218,628 
Real estate sold, retired and deconsolidated(119,263)(88,282)(183,073)
Ending balance (b)$1,743,390 $1,609,502 $1,457,511 

(a)Reconciliation of total real estate assets to balance sheet caption:
202320222021
Total per Schedule III$6,728,003 $6,689,692 $6,486,136 
Development in-process exclusive of land included in Schedule III8,918 46,735 6,890 
Real estate assets, net, held for sale— — (3,482)
Total real estate assets$6,736,921 $6,736,427 $6,489,544 

(b)Reconciliation of total accumulated depreciation to balance sheet caption:
202320222021
Total per Schedule III$1,743,390 $1,609,502 $1,457,511 
Real estate assets, net, held for sale— — — 
Total accumulated depreciation$1,743,390 $1,609,502 $1,457,511 
Real Estate and Accumulated Depreciation Disclosure
(in thousands)

December 31, 2023

Initial CostsCosts Capitalized
Subsequent to
Acquisition
Gross Value at Close of PeriodLife on
Which
Depreciation
is
Calculated
DescriptionProperty
Type
2023
Encumbrance
LandBldg &
Improv
LandBldg &
Improv
LandBldg &
Improv
Total
Assets (1)
Accumulated
Depreciation
Date of
Construction
Atlanta, GA
1700 Century CircleOffice$— $2,482 $$639 $$3,121 $3,123 $1,662 1983 5-40 yrs.
1800 Century BoulevardOffice1,444 29,081 — 6,311 1,444 35,392 36,836 22,480 1975 5-40 yrs.
1825 Century BoulevardOffice864 — 303 15,204 1,167 15,204 16,371 8,169 2002 5-40 yrs.
1875 Century BoulevardOffice— 8,924 — 9,038 — 17,962 17,962 11,278 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 — 9,395 — 23,827 23,827 14,339 1971 5-40 yrs.
2400 Century ParkwayOffice— — 406 15,514 406 15,514 15,920 9,384 1998 5-40 yrs.
2500 Century ParkwayOffice— — 328 11,507 328 11,507 11,835 5,114 2005 5-40 yrs.
2500/2635 Parking GarageOffice— — — 6,447 — 6,447 6,447 2,933 2005 5-40 yrs.
2600 Century ParkwayOffice— 10,679 — 5,541 — 16,220 16,220 9,543 1973 5-40 yrs.
2635 Century ParkwayOffice— 21,643 — 21,669 — 43,312 43,312 24,379 1980 5-40 yrs.
2800 Century ParkwayOffice— 20,449 — 11,587 — 32,036 32,036 20,147 1983 5-40 yrs.
Century Plaza IOffice1,290 8,567 — 5,020 1,290 13,587 14,877 7,863 1981 5-40 yrs.
Century Plaza IIOffice1,380 7,733 — 4,764 1,380 12,497 13,877 6,554 1984 5-40 yrs.
Riverwood 100Office5,785 64,913 (29)31,582 5,756 96,495 102,251 34,264 19895-40 yrs.
Tradeport - LandOffice5,243 — (4,733)— 510 — 510 — N/A N/A
Two Alliance CenterOffice9,579 125,549 — 756 9,579 126,305 135,884 41,606 20095-40 yrs.
One Alliance CenterOffice14,775 123,071 — 24,548 14,775 147,619 162,394 45,240 20015-40 yrs.
10 Glenlake NorthOffice5,349 26,334 — 8,153 5,349 34,487 39,836 11,367 20005-40 yrs.
10 Glenlake SouthOffice5,103 22,811 — 8,223 5,103 31,034 36,137 8,905 19995-40 yrs.
Riverwood 200Office4,777 89,708 450 2,033 5,227 91,741 96,968 19,819 20175-40 yrs.
Riverwood 300 - LandOffice400 — — 710 400 710 1,110 123 20175-40 yrs.
Monarch TowerOffice22,717 143,068 — 25,268 22,717 168,336 191,053 41,899 19975-40 yrs.
Monarch PlazaOffice27,678 88,962 — 19,637 27,678 108,599 136,277 24,488 19835-40 yrs.
Galleria 75 - LandOffice19,740 — (1,938)697 17,802 697 18,499 99 20225-40 yrs.
Charlotte, NC
Bank of America TowerOffice200,000 29,273 354,749 — 28,069 29,273 382,818 412,091 47,795 2019 5-40 yrs.
One MorrocroftOffice(2)3,655 28,357 (198)4,697 3,457 33,054 36,511 3,114 1992 5-40 yrs.
Two MorrocroftOffice(2)3,530 28,804 (190)1,675 3,340 30,479 33,819 2,716 19985-40 yrs.
Three MorrocroftOffice(2)3,566 30,505 (192)11 3,374 30,516 33,890 2,737 20005-40 yrs.
Initial CostsCosts Capitalized
Subsequent to
Acquisition
Gross Value at Close of PeriodLife on
Which
Depreciation
is
Calculated
DescriptionProperty
Type
2023
Encumbrance
LandBldg &
Improv
LandBldg &
Improv
LandBldg &
Improv
Total
Assets (1)
Accumulated
Depreciation
Date of
Construction
Capitol Towers NorthOffice(3)8,642 96,254 — 768 8,642 97,022 105,664 7,304 2017 5-40 yrs.
Capitol Towers SouthOffice(3)9,095 95,458 — 132 9,095 95,590 104,685 7,568 20155-40 yrs.
1426 S. Tryon - LandOffice26,702 — (421)26,281 — 26,281 — N/A 5-40 yrs.
SIX50 at Legacy UnionOffice16,504 166,305 — 1,40016,504 167,705 184,209 7,741 2020 5-40 yrs.
Nashville, TN
3322 West EndOffice3,025 27,490 — 12,678 3,025 40,168 43,193 22,235 1986 5-40 yrs.
3401 West EndOffice5,862 22,917 — 7,269 5,862 30,186 36,048 19,087 1982 5-40 yrs.
5310 Maryland WayOffice1,863 7,201 — 5,623 1,863 12,824 14,687 7,977 1994 5-40 yrs.
Cool Springs I & II DeckOffice— — — 3,998 — 3,998 3,998 1,617 2007 5-40 yrs.
Cool Springs III & IV DeckOffice— — — 4,468 — 4,468 4,468 1,875 2007 5-40 yrs.
Cool Springs IOffice1,583 — 15 16,867 1,598 16,867 18,465 9,850 1999 5-40 yrs.
Cool Springs IIOffice1,824 — 346 25,482 2,170 25,482 27,652 12,177 1999 5-40 yrs.
Cool Springs IIIOffice1,631 — 804 23,704 2,435 23,704 26,139 7,823 2006 5-40 yrs.
Cool Springs IVOffice1,715 — — 25,288 1,715 25,288 27,003 8,013 2008 5-40 yrs.
Cool Springs VOffice3,688 — 295 50,813 3,983 50,813 54,796 17,033 2007 5-40 yrs.
Harpeth TwoOffice1,419 5,677 — 8,608 1,419 14,285 15,704 5,543 1984 5-40 yrs.
Harpeth ThreeOffice1,660 6,649 — 10,438 1,660 17,087 18,747 6,841 1987 5-40 yrs.
Harpeth FourOffice1,713 6,842 — 10,936 1,713 17,778 19,491 7,007 1989 5-40 yrs.
Harpeth FiveOffice662 — 197 10,965 859 10,965 11,824 4,087 1998 5-40 yrs.
Hickory TraceOffice1,164 — 164 5,989 1,328 5,989 7,317 3,024 2001 5-40 yrs.
Highwoods Plaza IOffice1,552 — 307 9,199 1,859 9,199 11,058 5,588 1996 5-40 yrs.
Highwoods Plaza IIOffice1,448 — 307 7,642 1,755 7,642 9,397 4,372 1997 5-40 yrs.
Seven Springs IOffice2,076 — 592 14,814 2,668 14,814 17,482 7,144 2002 5-40 yrs.
SouthPointeOffice1,655 — 310 9,493 1,965 9,493 11,458 5,476 1998 5-40 yrs.
Westwood SouthOffice2,106 — 382 11,190 2,488 11,190 13,678 7,041 1999 5-40 yrs.
100 Winners CircleOffice1,497 7,258 — 7,687 1,497 14,945 16,442 6,328 1987 5-40 yrs.
The Pinnacle at Symphony PlaceOffice87,003 — 141,469 — 6,181 — 147,650 147,650 51,151 2010 5-40 yrs.
Seven Springs EastOffice2,525 37,587 — 520 2,525 38,107 40,632 12,149 2013 5-40 yrs.
The Shops at Seven SpringsOffice803 8,223 — 691 803 8,914 9,717 3,663 2013 5-40 yrs.
Seven Springs WestOffice2,439 51,306 — 4,120 2,439 55,426 57,865 11,916 2016 5-40 yrs.
Seven Springs IIOffice2,356 30,048 — 3,432 2,356 33,480 35,836 7,563 2017 5-40 yrs.
Bridgestone TowerOffice19,223 169,582 — 457 19,223 170,039 189,262 31,117 2017 5-40 yrs.
Virginia Springs IIOffice4,821 26,448 — 3,988 4,821 30,436 35,257 3,315 2020 5-40 yrs.
MARS CampusOffice7,010 87,474 — 161 7,010 87,635 94,645 15,360 2019 5-40 yrs.
Virginia Springs IOffice4,534 25,632 — 308 4,534 25,940 30,474 4,732 2018 5-40 yrs.
Initial CostsCosts Capitalized
Subsequent to
Acquisition
Gross Value at Close of PeriodLife on
Which
Depreciation
is
Calculated
DescriptionProperty
Type
2023
Encumbrance
LandBldg &
Improv
LandBldg &
Improv
LandBldg &
Improv
Total
Assets (1)
Accumulated
Depreciation
Date of
Construction
1100 Broadway - LandOffice29,845 — (259)— 29,586 — 29,586 — N/A N/A
AsurionOffice33,219 230,569 — 2,780 33,219 233,349 266,568 17,157 2021 5-40 yrs.
Ovation - LandOffice89,231 — 192 — 89,423 — 89,423 — N/A N/A
Broadway Stem - LandOffice6,218 — (1,205)526 5,013 526 5,539 31 2021 5-40 yrs.
YMCA Site - landOffice16,121 — (28)— 16,093 — 16,093 — N/A N/A
Orlando, FL
Capital Plaza Three - LandOffice2,994 — 18 — 3,012 — 3,012 — N/A N/A
1800 Eller DriveOffice— 9,851 — 1,692 — 11,543 11,543 7,963 1983 5-40 yrs.
201 South OrangeOffice3,893 29,541 — 14,687 3,893 44,228 48,121 13,704 1982 5-40 yrs.
Capital Plaza TwoOffice4,346 43,394 — 14,697 4,346 58,091 62,437 15,476 1999 5-40 yrs.
Capital Plaza OneOffice3,482 27,321 — 10,693 3,482 38,014 41,496 11,798 1975 5-40 yrs.
Landmark Center TwoOffice4,743 22,031 — 11,894 4,743 33,925 38,668 10,873 1985 5-40 yrs.
Landmark Center OneOffice6,207 22,655 — 12,160 6,207 34,815 41,022 12,180 1983 5-40 yrs.
Bank of America PlazaOffice3,490 56,079 — 11,401 3,490 67,480 70,970 16,215 2000 5-40 yrs.
Eola CentreOffice5,785 11,160 — 15,584 5,785 26,744 32,529 6,732 1969 5-40 yrs.
Pittsburgh, PA
One PPG PlaceOffice9,819 107,643 — 57,996 9,819 165,639 175,458 58,449 1983-1985 5-40 yrs.
Two PPG PlaceOffice2,302 10,978 — 15,373 2,302 26,351 28,653 8,649 1983-1985 5-40 yrs.
Three PPG PlaceOffice501 2,923 — 5,277 501 8,200 8,701 3,690 1983-1985 5-40 yrs.
Four PPG PlaceOffice620 3,239 — 3,378 620 6,617 7,237 2,786 1983-1985 5-40 yrs.
Five PPG PlaceOffice803 4,924 — 3,007 803 7,931 8,734 2,842 1983-1985 5-40 yrs.
Six PPG PlaceOffice3,353 25,602 — 16,079 3,353 41,681 45,034 15,906 1983-1985 5-40 yrs.
EQT PlazaOffice16,457 83,812 (6,000)(5,867)10,457 77,945 88,402 37,168 1987 5-40 yrs.
East Liberty - LandOffice2,478 — (1,204)— 1,274 — 1,274 — N/A N/A
Raleigh, NC
3600 Glenwood AvenueOffice— 10,994 — 6,237 — 17,231 17,231 11,057 1986 5-40 yrs.
3737 Glenwood AvenueOffice— — 318 17,946 318 17,946 18,264 9,889 1999 5-40 yrs.
4800 Falls of NeuseOffice2,678 17,630 — 7,472 2,678 25,102 27,780 17,202 1985 5-40 yrs.
801 Raleigh Corporate CenterOffice828 — 272 13,031 1,100 13,031 14,131 6,345 2002 5-40 yrs.
2500 Blue Ridge RoadOffice722 4,606 — 1,022 722 5,628 6,350 3,969 1982 5-40 yrs.
2418 Blue Ridge RoadOffice462 1,410 — 2,731 462 4,141 4,603 2,333 1988 5-40 yrs.
2000 CentreGreenOffice1,529 — (391)14,485 1,138 14,485 15,623 6,749 2000 5-40 yrs.
4000 CentreGreenOffice1,653 — (389)12,336 1,264 12,336 13,600 5,808 2001 5-40 yrs.
5000 CentreGreenOffice1,291 34,572 — 2,197 1,291 36,769 38,060 9,583 2017 5-40 yrs.
3000 CentreGreenOffice1,779 — (397)14,784 1,382 14,784 16,166 6,196 2002 5-40 yrs.
Initial CostsCosts Capitalized
Subsequent to
Acquisition
Gross Value at Close of PeriodLife on
Which
Depreciation
is
Calculated
DescriptionProperty
Type
2023
Encumbrance
LandBldg &
Improv
LandBldg &
Improv
LandBldg &
Improv
Total
Assets (1)
Accumulated
Depreciation
Date of
Construction
1000 CentreGreenOffice1,280 — 55 13,765 1,335 13,765 15,100 5,491 2008 5-40 yrs.
GlenLake - LandOffice13,003 — (12,382)114 621 114 735 65 20015-40 yrs.
GlenLake OneOffice924 — 1,324 23,241 2,248 23,241 25,489 11,934 2002 5-40 yrs.
GlenLake FourOffice1,659 — 493 20,795 2,152 20,795 22,947 8,920 2006 5-40 yrs.
GlenLake SixOffice941 — (365)22,210 576 22,210 22,786 7,899 2008 5-40 yrs.
701 Corporate CenterOffice1,304 — 540 19,465 1,844 19,465 21,309 10,277 1996 5-40 yrs.
7001 Weston ParkwayOffice531 — (267)8,064 264 8,064 8,328 5,069 1998 5-40 yrs.
Inveresk Parcel 2 - LandOffice657 — 38 103 695 103 798 22 2015 5-40 yrs.
4201 Lake Boone TrailOffice1,450 6,311 — 1,077 1,450 7,388 8,838 2,519 19985-40 yrs.
4620 Creekstone DriveOffice149 — 107 5,904 256 5,904 6,160 2,183 2001 5-40 yrs.
4825 Creekstone DriveOffice398 — 293 10,796 691 10,796 11,487 6,327 1999 5-40 yrs.
751 Corporate CenterOffice2,665 16,939 — (144)2,665 16,795 19,460 4,076 2018 5-40 yrs.
PNC PlazaOffice1,206 — — 71,200 1,206 71,200 72,406 32,059 20085-40 yrs.
4301 Lake Boone TrailOffice878 3,730 — 3,066 878 6,796 7,674 4,547 1990 5-40 yrs.
4207 Lake Boone TrailOffice362 1,818 — 1,113 362 2,931 3,293 2,320 1993 5-40 yrs.
2301 Rexwoods DriveOffice919 2,816 — 1,709 919 4,525 5,444 3,155 1992 5-40 yrs.
4325 Lake Boone TrailOffice586 — — 3,894 586 3,894 4,480 2,609 1995 5-40 yrs.
2300 Rexwoods DriveOffice1,301 — 184 9,988 1,485 9,988 11,473 4,620 1998 5-40 yrs.
4700 Six Forks RoadOffice666 2,665 — 1,796 666 4,461 5,127 2,666 1982 5-40 yrs.
4700 Homewood CourtOffice1,086 4,533 — 1,677 1,086 6,210 7,296 4,035 1983 5-40 yrs.
4800 Six Forks RoadOffice862 4,411 — 2,546 862 6,957 7,819 4,670 1987 5-40 yrs.
4601 Creekstone DriveOffice255 — 217 6,507 472 6,507 6,979 3,470 19975-40 yrs.
Weston - LandOffice22,771 — (19,528)— 3,243 — 3,243 — N/AN/A
4625 Creekstone DriveOffice458 — 268 6,552 726 6,552 7,278 3,969 19955-40 yrs.
11000 Weston ParkwayOffice2,651 18,850 — 16,644 2,651 35,494 38,145 12,110 19985-40 yrs.
GlenLake FiveOffice2,263 30,264 — 1,229 2,263 31,493 33,756 10,346 20145-40 yrs.
11800 Weston ParkwayOffice826 13,188 — 60 826 13,248 14,074 4,366 20145-40 yrs.
CentreGreen CaféOffice41 3,509 — 15 41 3,524 3,565 798 20145-40 yrs.
CentreGreen Fitness CenterOffice27 2,322 — 14 27 2,336 2,363 528 20145-40 yrs.
One City PlazaOffice11,288 68,375 — 25,572 11,288 93,947 105,235 30,250 19865-40 yrs.
Edison - LandOffice5,984 — 1,575 — 7,559 — 7,559 — N/A N/A
Charter SquareOffice7,267 65,881 — 4,016 7,267 69,897 77,164 16,034 20155-40 yrs.
MetLife Global Technology CampusOffice21,580 149,889 — 356 21,580 150,245 171,825 33,564 2015 5-40 yrs.
GlenLake SevenOffice1,662 37,332 — (44)1,662 37,288 38,950 4,145 2020 5-40 yrs.
Initial CostsCosts Capitalized
Subsequent to
Acquisition
Gross Value at Close of PeriodLife on
Which
Depreciation
is
Calculated
DescriptionProperty
Type
2023
Encumbrance
LandBldg &
Improv
LandBldg &
Improv
LandBldg &
Improv
Total
Assets (1)
Accumulated
Depreciation
Date of
Construction
Hargett - LandOffice9,248 — (507)— 8,741 — 8,741 — N/A N/A
Forum 1Office1,278 27,809 — 1,686 1,278 29,495 30,773 3,510 19855-40 yrs.
Forum 2Office1,327 18,088 — 151 1,327 18,239 19,566 2,328 19885-40 yrs.
Forum 3Office994 23,931 — 1,480 994 25,411 26,405 3,421 19955-40 yrs.
Forum 4Office2,118 43,889 — 279 2,118 44,168 46,286 4,970 20005-40 yrs.
Forum 5Office1,552 26,263 — 1,505 1,552 27,768 29,320 3,889 20075-40 yrs.
Captrust TowerOffice84,360 9,670 124,530 — 3,991 9,670 128,521 138,191 9,428 20105-40 yrs.
150 FayettevilleOffice110,391 7,677 130,049 — 17,401 7,677 147,450 155,127 12,307 19915-40 yrs.
GlenLake IIIOffice— — 3,981 65,660 3,981 65,660 69,641 550 20235-40 yrs.
2205 Evans Road - LandOffice— — 2,676 — 2,676 — 2,676 — N/AN/A
Other PropertyOther27,260 20,868 (15,828)6,837 11,432 27,705 39,137 10,640 N/A5-40 yrs.
Richmond, VA
4900 Cox RoadOffice1,324 5,311 15 2,742 1,339 8,053 9,392 4,694 1991 5-40 yrs.
Colonnade BuildingOffice1,364 6,105 — 3,021 1,364 9,126 10,490 4,306 2003 5-40 yrs.
Highwoods CommonsOffice521 — 458 5,038 979 5,038 6,017 2,539 1999 5-40 yrs.
Highwoods OneOffice1,688 — 22 14,072 1,710 14,072 15,782 8,421 1996 5-40 yrs.
Highwoods TwoOffice786 — 226 10,951 1,012 10,951 11,963 5,521 1997 5-40 yrs.
Highwoods FiveOffice783 — 11 8,210 794 8,210 9,004 4,876 1998 5-40 yrs.
Highwoods PlazaOffice909 — 187 6,334 1,096 6,334 7,430 3,311 2000 5-40 yrs.
Innslake CenterOffice845 — 125 7,706 970 7,706 8,676 4,262 2001 5-40 yrs.
4101 Cox RoadOffice1,205 4,825 — 2,887 1,205 7,712 8,917 4,361 1990 5-40 yrs.
North ParkOffice2,163 8,659 3,129 2,169 11,788 13,957 7,081 1989 5-40 yrs.
North Shore Commons IOffice951 — 137 13,947 1,088 13,947 15,035 6,494 2002 5-40 yrs.
North Shore Commons IIOffice2,067 — (89)11,410 1,978 11,410 13,388 4,544 2007 5-40 yrs.
North End - LandOffice1,497 — 55 10 1,552 10 1,562 20205-40 yrs.
One Shockoe PlazaOffice— — 356 22,374 356 22,374 22,730 13,031 1996 5-40 yrs.
Lake Brook CommonsOffice1,600 8,864 (179)367 1,421 9,231 10,652 4,173 1996 5-40 yrs.
Highwoods ThreeOffice1,918 — 358 12,445 2,276 12,445 14,721 5,522 2005 5-40 yrs.
Stony Point IOffice1,384 11,630 (267)4,988 1,117 16,618 17,735 9,773 1990 5-40 yrs.
Stony Point IIOffice1,240 — 103 13,839 1,343 13,839 15,182 7,662 1999 5-40 yrs.
Stony Point IIIOffice995 — — 10,501 995 10,501 11,496 5,516 2002 5-40 yrs.
Stony Point IVOffice955 — — 13,659 955 13,659 14,614 5,024 2006 5-40 yrs.
4480 Cox RoadOffice1,301 6,036 15 3,491 1,316 9,527 10,843 4,717 1996 5-40 yrs.
Innsbrook CentreOffice914 8,249 — 677 914 8,926 9,840 4,406 1987 5-40 yrs.
Tampa, FL
Initial CostsCosts Capitalized
Subsequent to
Acquisition
Gross Value at Close of PeriodLife on
Which
Depreciation
is
Calculated
DescriptionProperty
Type
2023
Encumbrance
LandBldg &
Improv
LandBldg &
Improv
LandBldg &
Improv
Total
Assets (1)
Accumulated
Depreciation
Date of
Construction
Meridian ThreeOffice2,673 16,470 — 6,379 2,673 22,849 25,522 9,488 1989 5-40 yrs.
Bayshore PlaceOffice2,276 11,817 — 3,891 2,276 15,708 17,984 8,721 1990 5-40 yrs.
Highwoods Bay Center IOffice3,565 — (64)38,207 3,501 38,207 41,708 16,401 2007 5-40 yrs.
HorizonOffice— 6,257 — 4,294 — 10,551 10,551 5,736 1980 5-40 yrs.
LakePointe OneOffice2,106 89 — 41,220 2,106 41,309 43,415 25,899 1986 5-40 yrs.
LakePointe TwoOffice2,000 15,848 672 13,455 2,672 29,303 31,975 17,383 1999 5-40 yrs.
LakesideOffice— 7,369 — 7,126 — 14,495 14,495 9,199 1978 5-40 yrs.
Lakeside/Parkside GarageOffice— — — 5,731 — 5,731 5,731 3,197 2004 5-40 yrs.
One Harbour PlaceOffice2,016 25,252 — 15,916 2,016 41,168 43,184 22,066 1985 5-40 yrs.
ParksideOffice— 9,407 — 3,758 — 13,165 13,165 7,538 1979 5-40 yrs.
PavilionOffice— 16,394 — 7,052 — 23,446 23,446 14,425 1982 5-40 yrs.
Pavilion Parking GarageOffice— — — 5,911 — 5,911 5,911 3,514 1999 5-40 yrs.
SpectrumOffice1,454 14,502 — 6,513 1,454 21,015 22,469 12,054 1984 5-40 yrs.
Tower PlaceOffice3,218 19,898 — 10,011 3,218 29,909 33,127 17,242 1988 5-40 yrs.
Westshore SquareOffice1,126 5,186 — 1,754 1,126 6,940 8,066 4,380 1976 5-40 yrs.
Meridian OneOffice1,849 22,363 — 5,464 1,849 27,827 29,676 8,416 1984 5-40 yrs.
Meridian TwoOffice1,302 19,588 — 6,848 1,302 26,436 27,738 8,604 1986 5-40 yrs.
AvionOffice— — 6,310 43,901 6,310 43,901 50,211 8,833 2016 5-40 yrs.
Truist PlaceOffice1,980 102,138 — 29,849 1,980 131,987 133,967 32,733 1992 5-40 yrs.
Truist Place - LandOffice2,225 — — — 2,225 — 2,225 — N/A N/A
Midtown WestOffice45,000 16,543 34,818 (218)9,931 16,325 44,749 61,074 3,670 2021 5-40 yrs.
$807,561 $4,271,654 $(40,453)$1,689,241 $767,108 $5,960,895 $6,728,003 $1,743,390 
__________
(1)The cost basis for income tax purposes of aggregate land and buildings and tenant improvements as of December 31, 2023 is $6.6 billion.
(2)These assets are pledged as collateral for a $69.5 million first mortgage loan.
(3)These assets are pledged as collateral for a $124.5 million first mortgage loan.
v3.24.0.1
Description of Business and Significant Accounting Policies (Policies)
12 Months Ended
Dec. 31, 2023
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. In addition, we consolidate those entities deemed to be variable interest entities in which we are determined to be the primary beneficiary.

As of December 31, 2023, we are involved with six entities we determined to be variable interest entities, one of which we are the primary beneficiary and is consolidated and five of which we are not the primary beneficiary and are not consolidated. We also own three properties through a joint venture investment that were deconsolidated effective January 1, 2023 (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. As of December 31, 2023, a reserve of $0.5 million was recorded to cover estimated reported and unreported claims.
Real Estate and Related Assets
Real Estate and Related Assets

Real estate and related assets are recorded at cost and stated at cost less accumulated depreciation. Renovations, replacements and other expenditures that improve or extend the life of assets are capitalized and depreciated over their estimated useful lives. Expenditures for ordinary maintenance and repairs are charged to expense as incurred. Depreciation is computed using the straight-line method over the estimated useful life of 40 years for buildings and depreciable land infrastructure costs, 15 years for building improvements and five to seven years for furniture, fixtures and equipment. Tenant improvements are amortized using the straight-line method over the initial fixed terms of the respective leases, which generally range from three to 10 years. Depreciation expense for real estate assets was $253.2 million, $240.3 million and $218.6 million for the years ended December 31, 2023, 2022 and 2021, respectively.

Expenditures directly related to the development and construction of real estate assets are included in net real estate assets and 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 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 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 determined an enforceable contract exists and collection of the consideration to which we are entitled in exchange for transferring the real estate is probable, 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 a separate performance obligation and the allocable sales price is recognized when the separate performance obligation is satisfied.
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”). Our office properties that are under lease are primarily located in Atlanta, Charlotte, Dallas, Nashville, Orlando, 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 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 halfway 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 are, therefore, 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 Operations

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

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

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

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

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

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

Other than income taxes related to its taxable REIT subsidiary, the Operating Partnership does not reflect any federal income taxes in its financial statements since, as a partnership, the taxable effects of its operations are attributed to its partners. The Operating Partnership does record state income tax for states that tax partnership income directly.

We conduct certain business activities through a taxable REIT subsidiary, as permitted under the Code. The taxable REIT subsidiary is subject to federal, state and local income taxes on its taxable income. We record provisions for income taxes based on its income recognized for financial statement purposes, including the effects of differences between such income and the amount recognized for tax purposes.
Concentration of Credit Risk
Concentration of Credit Risk

As of December 31, 2023, our consolidated properties were leased to approximately 1,500 customers. The geographic locations that comprise greater than 10.0% of our rental and other revenues are Atlanta, Charlotte, Nashville, Raleigh and Tampa. Our customers engage in a wide variety of businesses. No single customer generated more than 4% of our consolidated revenues during 2023.

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 generally limit 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 interest expense 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 ease the financial reporting burdens related to the market transition from LIBOR and other interbank offered rates to alternative reference rates, such as the Secured Overnight Financing Rate (“SOFR”). These optional expedients and exceptions provide guidance on contract modifications and hedge accounting. We have completed the transition to SOFR rates for our applicable outstanding debt instruments with no material impact to our Consolidated Financial Statements.

The FASB issued an ASU that will require enhanced segment disclosures, primarily regarding significant segment expenses. The ASU is required to be adopted in our 2024 Annual Report and applied retrospectively to all prior periods presented in the financial statements. We do not expect such adoption to have a material effect on our Notes to Consolidated Financial Statements.
v3.24.0.1
Leases (Tables)
12 Months Ended
Dec. 31, 2023
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 as of December 31, 2023 for our consolidated properties:
2024$707,439 
2025643,857 
2026588,955 
2027527,229 
2028448,428 
Thereafter1,677,371 
$4,593,279 
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 as of December 31, 2023 and a reconciliation of those cash flows to the operating lease liability as of December 31, 2023:

2024$2,258 
20252,306 
20262,355 
20272,407 
20282,461 
Thereafter75,341 
87,128 
Discount(54,617)
Lease liability$32,511 
v3.24.0.1
Real Estate Assets (Tables)
12 Months Ended
Dec. 31, 2023
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.
v3.24.0.1
Investments In and Advances To Affiliates (Tables)
12 Months Ended
Dec. 31, 2023
Equity Method Investments and Joint Ventures [Abstract]  
Schedule of Equity Method Investments
The following table sets forth our ownership in unconsolidated affiliates as of December 31, 2023:
Joint VentureLocationOwnership
Interest
Highwoods-Markel Associates, LLCRichmond50.0%
Granite Park Six JV, LLCDallas50.0%
GPI 23 Springs JV, LLCDallas50.0%
M+O JV, LLCDallas50.0%
Midtown East Tampa, LLCTampa50.0%
Brand/HRLP 2827 Peachtree, LLCAtlanta50.0%
Plaza Colonnade, Tenant-in-CommonKansas City50.0%
Kessinger/Hunter & Company, LCKansas City26.5%
v3.24.0.1
Variable Interest Entities (Tables)
12 Months Ended
Dec. 31, 2023
Variable Interest Entities [Abstract]  
Schedule of Variable Interest Entities The following table sets forth the assets and liabilities of the Midtown West joint venture included on our Consolidated Balance Sheets:
December 31,
20232022
Net real estate assets$60,410 $59,854 
Cash and cash equivalents $1,096 $1,009 
Restricted cash$2,260 $— 
Accounts receivable$31 $1,490 
Accrued straight-line rents receivable $5,041 $1,921 
Deferred leasing costs, net$2,783 $2,677 
Prepaid expenses and other assets$124 $153 
Mortgages and notes payable, net$44,192 $— 
Accounts payable, accrued expenses and other liabilities$2,872 $1,212 
v3.24.0.1
Intangible Assets and Below Market Lease Liabilities (Tables)
12 Months Ended
Dec. 31, 2023
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,
20232022
Assets:
Deferred leasing costs (including lease incentives and above market lease and in-place lease acquisition-related intangible assets)
$401,621 $416,579 
Less accumulated amortization(175,697)(163,751)
$225,924 $252,828 
Liabilities (in accounts payable, accrued expenses and other liabilities):
Acquisition-related below market lease liabilities$50,842 $55,304 
Less accumulated amortization(30,416)(29,859)
$20,426 $25,445 
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,
202320222021
Amortization of deferred leasing costs and acquisition-related intangible assets (in depreciation and amortization)
$43,511 $44,900 $38,173 
Amortization of lease incentives (in rental and other revenues)$2,816 $2,090 $1,885 
Amortization of acquisition-related intangible assets (in rental and other revenues)
$3,338 $3,320 $1,932 
Amortization of acquisition-related below market lease liabilities (in rental and other revenues)
$(5,019)$(5,452)$(5,720)
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)
2024$39,896 $2,279 $3,066 $(4,240)
202531,612 1,977 2,210 (2,727)
202627,323 1,744 1,861 (2,431)
202723,539 1,543 1,520 (2,062)
202819,684 1,298 1,404 (1,648)
Thereafter57,353 3,428 4,187 (7,318)
$199,407 $12,269 $14,248 $(20,426)
Weighted average remaining amortization periods as of December 31, 2023 (in years)7.47.27.18.1
v3.24.0.1
Mortgages and Notes Payable (Tables)
12 Months Ended
Dec. 31, 2023
Debt Disclosure [Abstract]  
Schedule of Consolidated Mortgages and Notes Payable
Our mortgages and notes payable consisted of the following:
December 31,
20232022
Secured indebtedness (1):
5.69% mortgage loan due 2028$200,000 $— 
7.29% mortgage loan due 2028 (2)
45,000 — 
4.27% (3.61% effective rate) mortgage loan due 2028 (3)
110,391 113,105 
4.00% mortgage loan due 202987,003 89,204 
3.61% (3.19% effective rate) mortgage loan due 2029 (4)
84,360 84,666 
3.40% (3.50% effective rate) mortgage loan due 2033 (5)
69,524 69,473 
4.60% (3.73% effective rate) mortgage loan due 2037 (6)
124,474 127,540 
720,752 483,988 
Unsecured indebtedness:
3.875% (4.038% effective rate) notes due 2027 (7)
298,734 298,334 
4.125% (4.271% effective rate) notes due 2028 (8)
348,276 347,863 
4.200% (4.234% effective rate) notes due 2029 (9)
349,484 349,386 
3.050% (3.079% effective rate) notes due 2030 (10)
399,400 399,302 
2.600% (2.645% effective rate) notes due 2031 (11)
398,892 398,735 
7.650% (7.836% effective rate) notes due 2034 (12)
345,407 — 
Variable rate term loan due 2026 (13)
200,000 200,000 
Variable rate term loan due 2027 (13)
150,000 150,000 
Variable rate term loan due 2024 (14)
— 200,000 
Revolving credit facility due 2025 (15)
20,000 386,000 
2,510,193 2,729,620 
Less-unamortized debt issuance costs(17,739)(16,393)
Total mortgages and notes payable, net$3,213,206 $3,197,215 
__________
(1)Our secured mortgage loans were collateralized by real estate assets with an undepreciated book value of $1,237.6 million as of December 31, 2023. We paid down $6.7 million of secured loan balances through principal amortization during 2023.
(2)The borrower under this loan is our Midtown West joint venture, a consolidated 80.0% owned joint venture. See Note 4.
(3)Net of unamortized fair market value premium of $2.7 million and $3.3 million as of December 31, 2023 and 2022, respectively.
(4)Net of unamortized fair market value premium of $1.7 million and $2.0 million as of December 31, 2023 and 2022, respectively.
(5)Net of unamortized fair market value discount of $0.5 million as of both December 31, 2023 and 2022.
(6)Net of unamortized fair market value premium of $8.6 million and $9.3 million as of December 31, 2023 and 2022, respectively.
(7)Net of unamortized original issuance discount of $1.3 million and $1.7 million as of December 31, 2023 and 2022, respectively.
(8)Net of unamortized original issuance discount of $1.7 million and $2.1 million as of December 31, 2023 and 2022, respectively.
(9)Net of unamortized original issuance discount of $0.5 million and $0.6 million as of December 31, 2023 and 2022, respectively.
(10)Net of unamortized original issuance discount of $0.6 million and $0.7 million as of December 31, 2023 and 2022, respectively.
(11)Net of unamortized original issuance discount of $1.1 million and $1.3 million as of December 31, 2023 and 2022, respectively.
(12)Net of unamortized original issuance discount of $4.6 million as of December 31, 2023.
(13)The interest rate was 6.35% as of December 31, 2023.
(14)This loan was repaid in full as of December 31, 2023.
(15)The interest rate was 6.25% as of December 31, 2023.
Schedule of Long-term Debt Instruments
The following table sets forth scheduled future principal payments, including amortization, due on our mortgages and notes payable as of December 31, 2023:
Years Ending December 31,Amount
2024$6,944 
202527,156 
2026206,922 
2027458,976 
2028699,168 
Thereafter1,831,779 
Less-unamortized debt issuance costs(17,739)
$3,213,206 
v3.24.0.1
Noncontrolling Interests (Tables) - Highwoods Properties, Inc. [Member]
12 Months Ended
Dec. 31, 2023
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,
20232022
Beginning noncontrolling interests in the Operating Partnership$65,977 $111,689 
Adjustment of noncontrolling interests in the Operating Partnership to fair value(10,152)(39,502)
Conversions of Common Units to Common Stock(4,795)(1,251)
Redemptions of Common Units(163)(3,763)
Net income attributable to noncontrolling interests in the Operating Partnership3,164 3,670 
Distributions to noncontrolling interests in the Operating Partnership(4,511)(4,866)
Total noncontrolling interests in the Operating Partnership$49,520 $65,977 
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,
202320222021
Net income available for common stockholders$146,230 $156,572 $310,791 
Increase in additional paid in capital from conversions of Common Units to Common Stock4,795 1,251 15,076 
Redemptions of Common Units163 3,763 — 
Change from net income available for common stockholders and transfers from noncontrolling interests$151,188 $161,586 $325,867 
v3.24.0.1
Disclosure About Fair Value of Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2023
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 as of December 31, 2023:
Assets:
Mortgages and notes receivable, at fair value (1)
$4,795 $— $4,795 
Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets)
2,294 2,294 — 
Total Assets$7,089 $2,294 $4,795 
Noncontrolling Interests in the Operating Partnership$49,520 $49,520 $— 
Liabilities:
Mortgages and notes payable, net, at fair value (1)
$2,927,330 $— $2,927,330 
Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities)
2,294 2,294 — 
Total Liabilities$2,929,624 $2,294 $2,927,330 
Fair Value as of December 31, 2022:
Assets:
Mortgages and notes receivable, at fair value (1)
$1,051 $— $1,051 
Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets)
2,564 2,564 — 
Total Assets$3,615 $2,564 $1,051 
Noncontrolling Interests in the Operating Partnership$65,977 $65,977 $— 
Liabilities:
Mortgages and notes payable, net, at fair value (1)
$2,832,973 $— $2,832,973 
Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities)
2,564 2,564 — 
Total Liabilities$2,835,537 $2,564 $2,832,973 
__________
(1)    Amounts are not recorded at fair value on our Consolidated Balance Sheets as of December 31, 2023 and 2022.
v3.24.0.1
Equity (Tables)
12 Months Ended
Dec. 31, 2023
Class of Stock [Line Items]  
Schedule of Stock by Class, Preferred Stock
The following table sets forth the Company’s outstanding Preferred Stock as of both December 31, 2023 and 2022 :

Issue DateNumber of Shares OutstandingCarrying ValueLiquidation Preference Per ShareOptional Redemption DateAnnual Dividends Payable Per Share
(in thousands)
8.625% Series A Cumulative Redeemable2/12/199729 $28,811 $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,
202320222021
Ordinary dividend$1.58 $1.82 $1.87 
Capital gains0.42 0.18 0.09 
Total$2.00 $2.00 $1.96 
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,
202320222021
8.625% Series A Cumulative Redeemable:
Ordinary dividend$68.02 $78.48 $82.38 
Capital gains18.23 7.77 3.87 
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 as of both December 31, 2023 and 2022:

Issue DateNumber of
Units
Outstanding
Carrying
Value
Liquidation Preference
Per Unit
Optional Redemption
Date
Annual
Distributions
Payable
Per Unit
(in thousands)
8.625% Series A Cumulative Redeemable2/12/199729 $28,811 $1,000 2/12/2027$86.25 
v3.24.0.1
Employee Benefit Plans (Tables)
12 Months Ended
Dec. 31, 2023
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,
20232022
Outstanding stock options and warrants527,067 527,067 
Possible future issuance under equity incentive plans2,537,816 2,817,293 
3,064,883 3,344,360 
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 as of December 31, 2020537,373 $46.07 
Exercised(25,306)43.76 
Stock options outstanding as of December 31, 2021 (1)
512,067 46.18 
__________
(1)There were no options granted, canceled, exercised or forfeited during the years ended December 31, 2023 and 2022. The Company had 512,067 options exercisable as of December 31, 2023, 2022 and 2021, respectively, with a weighted average exercise price of $46.18 at each date. As of December 31, 2023 and 2022, these options had a weighted average remaining life of 2.0 years and 3.0 years, respectively, and all had exercise prices higher than the market price of our common stock.
Schedule of NonQualified Deferred Compensation Liability
The following table sets forth our deferred compensation liability:

Year Ended December 31,
202320222021
Beginning deferred compensation liability$2,564 $2,866 $2,573 
Mark-to-market adjustment to deferred compensation (in general and administrative expenses)
243 (302)293 
Distributions from deferred compensation plans(513)— — 
Total deferred compensation liability$2,294 $2,564 $2,866 
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 as of 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 as of December 31, 2021219,719 42.63 
Awarded and issued (1)
99,975 43.58 
Vested (2)
(101,082)42.80 
Forfeited(779)42.37 
Restricted shares outstanding as of December 31, 2022217,833 43.00 
Awarded and issued (1)
155,717 26.42 
Vested (2)
(95,423)43.57 
Forfeited(1,819)34.11 
Restricted shares outstanding as of December 31, 2023276,308 $33.51 
__________
(1)The weighted average fair value at grant date of time-based restricted stock issued during the years ended December 31, 2023, 2022 and 2021 was $4.1 million, $4.4 million and $4.1 million, respectively.
(2)The vesting date fair value of time-based restricted stock that vested during the years ended December 31, 2023, 2022 and 2021 was $2.5 million, $4.4 million and $3.6 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 as of 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 as of December 31, 2021229,292 38.00 
Awarded and issued (1)
81,832 41.94 
Vested (2)
(62,985)45.90 
Forfeited (3)
(20,995)45.90 
Restricted shares outstanding as of December 31, 2022227,144 38.93 
Awarded and issued (1)
126,736 27.06 
Vested (2)
(65,140)44.88 
Forfeited (3)
(2,148)35.83 
Restricted shares outstanding as of December 31, 2023286,592 $34.03 
__________
(1)The fair value at grant date of total return-based restricted stock issued during the years ended December 31, 2023, 2022 and 2021 was $3.4 million, $3.4 million and $2.9 million, respectively, at target.
(2)The vesting date fair value of total return-based restricted stock that vested during the years ended December 31, 2023, 2022 and 2021 was $1.7 million, $2.7 million and $2.2 million, respectively, based on the performance of the specific plans. Vested shares include those shares surrendered by employees to satisfy tax withholding obligations in connection with such vesting.
(3)The 2022 and 2021 amounts include 20,995 and 18,484 shares, respectively, that were forfeited at the end of the applicable measurement period because the applicable total return did not meet targeted levels. No shares were forfeited in 2023.
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:
202320222021
Risk free interest rate (1) 
4.4 %1.6 %0.3 %
Common stock dividend yield (2) 
6.9 %4.5 %4.8 %
Expected volatility (3) 
27.2 %25.8 %26.8 %
__________
(1)Represents the interest rate as of the grant date on US treasury bonds having the same life as the estimated life of the total return-based restricted stock grants.
(2)The dividend yield is calculated utilizing the then current regular dividend rate for a one-year period and the average per share price of Common Stock during the three-month period preceding the date of grant.
(3)Based on the historical volatility of Common Stock over a period relevant to the related total return-based restricted stock grant.
v3.24.0.1
Earnings Per Share and Per Unit (Tables)
12 Months Ended
Dec. 31, 2023
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,
202320222021
Earnings per Common Share - basic:
Numerator:
Net income$151,330 $163,958 $323,310 
Net (income) attributable to noncontrolling interests in the Operating Partnership(3,164)(3,670)(8,321)
Net (income)/loss attributable to noncontrolling interests in consolidated affiliates549 (1,230)(1,712)
Dividends on Preferred Stock(2,485)(2,486)(2,486)
Net income available for common stockholders$146,230 $156,572 $310,791 
Denominator:
Denominator for basic earnings per Common Share – weighted average shares (1)
105,529 105,120 104,232 
Net income available for common stockholders$1.39 $1.49 $2.98 
Earnings per Common Share - diluted:
Numerator:
Net income$151,330 $163,958 $323,310 
Net (income)/loss attributable to noncontrolling interests in consolidated affiliates549 (1,230)(1,712)
Dividends on Preferred Stock(2,485)(2,486)(2,486)
Net income available for common stockholders before net (income) attributable to noncontrolling interests in the Operating Partnership$149,394 $160,242 $319,112 
Denominator:
Denominator for basic earnings per Common Share – weighted average shares (1)
105,529 105,120 104,232 
Add:
Stock options using the treasury method— 18 
Noncontrolling interests Common Units2,256 2,442 2,811 
Denominator for diluted earnings per Common Share – adjusted weighted average shares and assumed conversions107,785 107,567 107,061 
Net income available for common stockholders$1.39 $1.49 $2.98 
__________
(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,
202320222021
Earnings per Common Unit - basic:
Numerator:
Net income$151,330 $163,958 $323,310 
Net (income)/loss attributable to noncontrolling interests in consolidated affiliates549 (1,230)(1,712)
Distributions on Preferred Units(2,485)(2,486)(2,486)
Net income available for common unitholders$149,394 $160,242 $319,112 
Denominator:
Denominator for basic earnings per Common Unit – weighted average units (1)
107,376 107,153 106,634 
Net income available for common unitholders$1.39 $1.50 $2.99 
Earnings per Common Unit - diluted:
Numerator:
Net income$151,330 $163,958 $323,310 
Net (income)/loss attributable to noncontrolling interests in consolidated affiliates549 (1,230)(1,712)
Distributions on Preferred Units(2,485)(2,486)(2,486)
Net income available for common unitholders$149,394 $160,242 $319,112 
Denominator:
Denominator for basic earnings per Common Unit – weighted average units (1)
107,376 107,153 106,634 
Add:
Stock options using the treasury method— 18 
Denominator for diluted earnings per Common Unit – adjusted weighted average units and assumed conversions107,376 107,158 106,652 
Net income available for common unitholders$1.39 $1.50 $2.99 
__________
(1)Includes all unvested restricted stock where distributions on such restricted stock are non-forfeitable.
v3.24.0.1
Segment Information (Tables)
12 Months Ended
Dec. 31, 2023
Segment Reporting [Abstract]  
Segment Information
The following tables summarize rental and other revenues, net operating income and total assets for our office properties. Net operating income is the primary industry property-level performance metric used by our chief operating decision maker and is defined as rental and other revenues less rental property and other expenses.

Year Ended December 31,
202320222021
Rental and Other Revenues:
Atlanta$143,741 $143,904 $143,612 
Charlotte85,984 73,721 49,347 
Nashville171,797 174,341 149,674 
Orlando58,002 54,802 51,281 
Raleigh181,964 182,990 162,115 
Richmond35,918 43,084 45,941 
Tampa99,421 94,726 97,954 
Total Office Segment776,827 767,568 699,924 
Other57,170 61,361 68,083 
Total Rental and Other Revenues$833,997 $828,929 $768,007 
Net Operating Income:
Atlanta$89,700 $92,297 $94,122 
Charlotte63,921 55,689 38,464 
Nashville125,417 129,217 110,039 
Orlando35,162 32,331 31,301 
Raleigh132,262 134,904 121,005 
Richmond24,756 28,879 31,726 
Tampa62,382 59,691 64,396 
Total Office Segment533,600 533,008 491,053 
Other 31,615 36,115 40,518 
Total Net Operating Income565,215 569,123 531,571 
Reconciliation to net income:
Depreciation and amortization(299,411)(287,610)(259,255)
Impairments of real estate assets— (36,515)— 
General and administrative expenses(42,857)(42,266)(40,553)
Interest expense(136,710)(105,385)(85,853)
Other income4,435 1,530 1,394 
Gains on disposition of property47,773 63,546 174,059 
Gain on deconsolidation of affiliate11,778 — — 
Equity in earnings of unconsolidated affiliates1,107 1,535 1,947 
Net income$151,330 $163,958 $323,310 
December 31,
20232022
Total Assets:
Atlanta$907,421 $928,406 
Charlotte974,846 984,075 
Nashville1,259,272 1,290,819 
Orlando286,781 287,950 
Raleigh1,255,978 1,288,878 
Richmond157,299 196,435 
Tampa473,800 493,966 
Total Office Segment5,315,397 5,470,529 
Other687,531 592,847 
Total Assets$6,002,928 $6,063,376 
v3.24.0.1
Description of Business and Significant Accounting Policies (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2023
USD ($)
ft²
numberOfEntities
numberOfBuildings
customers
shares
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2019
ft²
Description of Business [Abstract]        
Rentable square feet of commercial real estate (in square feet) | ft² 28,400,000      
Rentable square feet of commercial real estate under development (in square feet) | ft² 1,600,000      
Rentable square feet of potential office build (in square feet) | ft² 5,200,000      
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      
Number of VIE entities | numberOfEntities 6      
In-service office properties not wholly owned (in units) | numberOfBuildings 3      
Self insurance liability | $ $ 500      
Real estate assets, depreciation expense | $ $ 253,151 $ 240,273 $ 218,628  
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 1,500      
Percent of annualized cash rental revenue derived from geographic locations 10.00%      
Limit of consolidated revenue generated by any single customer 4.00%      
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) 105,300,000      
Percentage of ownership of Common Units 98.00% 97.80%    
Common units redeemed for a like number of common shares of stock (in shares) 193,907      
Common Units redeemed for cash (in shares) 7,294      
Highwoods Realty Limited Partnership [Member]        
Description of Business [Abstract]        
Common Units of partnership not owned by the Company (in shares) 2,200,000      
Variable Interest Entity, Primary Beneficiary [Member]        
Description of Business [Abstract]        
Rentable square feet of commercial real estate under development (in square feet) | ft²       152,000
Number of VIE entities | numberOfEntities 1      
Variable Interest Entity, Not Primary Beneficiary [Member]        
Description of Business [Abstract]        
Number of VIE entities | numberOfEntities 5      
v3.24.0.1
Leases ASC 842 (Details)
$ in Thousands, ft² in Millions
12 Months Ended
Dec. 31, 2023
USD ($)
ft²
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Lessor Disclosure [Abstract]      
Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration] Rental and other revenues Rental and other revenues Rental and other revenues
Rental and other revenues related to operating lease payments $ 819,900 $ 816,300 $ 754,900
Variable lease payments 72,900 69,800 57,300
Operating leases, scheduled future minimum payments receivable [Abstract]      
2024 707,439    
2025 643,857    
2026 588,955    
2027 527,229    
2028 448,428    
Thereafter 1,677,371    
Operating leases, total future minimum payments receivable due $ 4,593,279    
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) 49 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 2,600
Operating ground lease payments 2,400 $ 2,400 $ 2,300
Operating ground lease liabilities, scheduled future minimum payments [Abstract]      
2024 2,258    
2025 2,306    
2026 2,355    
2027 2,407    
2028 2,461    
Thereafter 75,341    
Operating ground lease liability, total future minimum payments 87,128    
Operating lease liability discount (54,617)    
Operating lease liability $ 32,511    
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  
v3.24.0.1
Real Estate Asset Acquisition (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
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)
v3.24.0.1
Real Estate Assets (Details)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Sep. 30, 2022
USD ($)
Jun. 30, 2022
USD ($)
ft²
Jun. 30, 2023
USD ($)
parcel
Dec. 31, 2023
USD ($)
ft²
numberOfBuildings
Dec. 31, 2022
USD ($)
ft²
numberOfBuildings
Dec. 31, 2021
USD ($)
ft²
numberOfLoans
numberOfOfficeBuildings
numberOfBuildings
Acquisitions [Abstract]            
Rentable square feet of commercial real estate (in square feet) | ft²       28,400,000    
Percentage of equity interest in joint ventures, maximum       50.00%    
Dispositions [Abstract]            
Gains on disposition of property       $ 47,773 $ 63,546 $ 174,059
Impairments [Abstract]            
Impairments of real estate assets       0 $ 36,515 0
Raleigh NC Land Acquisition            
Acquisitions [Abstract]            
Purchase price of acquisition       $ 2,700    
SIX50 at Legacy Union [Member]            
Acquisitions [Abstract]            
Rentable square feet of commercial real estate (in square feet) | ft²         367,000  
Purchase price of acquisition         $ 198,000  
Charlotte NC Land Acquisition [Member]            
Acquisitions [Abstract]            
Purchase price of acquisition         $ 27,000  
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]            
Rentable square feet of commercial real estate (in square feet) | ft²           636,000
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
Percentage of equity interest in joint ventures, maximum           25.00%
2023 Dispostions            
Dispositions [Abstract]            
Number of buildings sold | numberOfBuildings       4    
Sales price of disposition       $ 103,800    
Gains on disposition of property       47,800    
2022 Dispositions [Member]            
Dispositions [Abstract]            
Number of buildings sold | numberOfBuildings         5  
Sales price of disposition         $ 133,500  
Closing credits excluded for unfunded building and/or tenant improvements         1,100  
Gains on disposition of property         $ 63,500  
2021 Dispositions [Member]            
Dispositions [Abstract]            
Number of buildings sold | numberOfBuildings           13
Sales price of disposition           $ 384,600
Closing credits excluded for unfunded building and/or tenant improvements           6,900
Gains on disposition of property           $ 172,800
Seller Financed Transaction [Member]            
Dispositions [Abstract]            
Sales price of disposition       21,000    
Seller Financing [Abstract]            
Proceeds from sale of real estate       2,000    
Non-recourse seller financing       $ 19,000    
Term of debt instrument       2 years    
Interest rate basis       SOFR    
Interest rate, basis spread (in hundredths)       1.00%    
2022 Impairments [Member]            
Acquisitions [Abstract]            
Rentable square feet of commercial real estate (in square feet) | ft²   616,000        
Impairments [Abstract]            
Impairments of real estate assets $ 1,500 $ 35,000        
Square footage occupied by customer (in sq feet) | ft²   317,000        
v3.24.0.1
Investments In and Advances To Affiliates (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2023
USD ($)
ft²
Dec. 31, 2022
USD ($)
ft²
numberOfJointVentures
Dec. 31, 2021
USD ($)
ft²
Dec. 31, 2019
USD ($)
ft²
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 $ 18,900 $ 2,700    
Gain on deconsolidation of affiliate 11,778 0 $ 0  
Gains on disposition of property 47,773 $ 63,546 174,059  
Number of joint ventures formed | numberOfJointVentures   2    
Repayments of preferred equity from unconsolidated affiliates 80,000 $ 0 0  
Additional common equity contribution $ 132,609 261,772 6,079  
Rentable square feet of office property under development (in sq feet) | ft² 1,600,000      
Development, management and leasing fees recognized from unconsolidated affiliates $ 1,000 $ 600 1,600  
Consolidated Affiliate:        
Rentable square feet of office property under development (in sq feet) | ft² 1,600,000      
HRLP MTW, LLC [Member]        
Unconsolidated Affiliates:        
Effective interest rate (in hundredths) 7.29%      
Rentable square feet of office property under development (in sq feet) | ft²       152,000
Contribution of cash to acquire interest in joint venture       $ 20,000
Partner's contribution of property to acquire interest in joint venture       5,000
Advance to affiliate       $ 46,300
Consolidated Affiliate:        
Rentable square feet of office property under development (in sq feet) | ft²       152,000
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
Principal amount of debt $ 45,000      
Term of debt instrument 5 years      
Debt issuance costs $ 800      
Term of exercisable right (in years) 2 years      
HRLP MTW, LLC [Member] | Ownership Percentage [Member]        
Consolidated Affiliate:        
Partner's interest in consolidated joint venture (in hundredths) 20.00%     20.00%
Highwoods-Markel Associates, LLC Joint Venture [Member]        
Unconsolidated Affiliates:        
Percentage of equity interest in joint ventures, maximum 50.00%      
Gain on deconsolidation of affiliate $ 11,800      
Sales price of disposition     3,000  
Gains on disposition of property     $ 1,300  
Granite Park Six JV, LLC [Member]        
Unconsolidated Affiliates:        
Percentage of equity interest in joint ventures, maximum 50.00% 50.00%    
Total anticipated development costs   $ 200,000    
Construction loan obtained by joint venture   $ 115,000    
Interest rate, basis spread (in hundredths)   3.94%    
Interest rate cap (in hundredths)   3.50%    
Amount of borrowings outstanding, subject to swaps   $ 95,200    
Amount of loan funded to affiliate $ 54,900      
Consolidated Affiliate:        
Term of exercisable right (in years) 2 years      
Granite Park Six JV, LLC [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]        
Unconsolidated Affiliates:        
Interest rate basis   SOFR    
GPI 23 Springs JV, LLC [Member]        
Unconsolidated Affiliates:        
Percentage of equity interest in joint ventures, maximum 50.00% 50.00%    
Total anticipated development costs   $ 460,000    
Equity funded to acquire interest in joint venture $ 75,600      
Construction loan obtained by joint venture   $ 265,000    
Interest rate, basis spread (in hundredths)   3.55%    
Interest rate cap (in hundredths)   3.50%    
Amount of borrowings outstanding, subject to swaps   $ 83,000    
Amount of loan funded to affiliate $ 0      
Consolidated Affiliate:        
Term of exercisable right (in years) 2 years      
GPI 23 Springs JV, LLC [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]        
Unconsolidated Affiliates:        
Interest rate basis   SOFR    
M+O JV, LLC [Member]        
Unconsolidated Affiliates:        
Percentage of equity interest in joint ventures, maximum   50.00%    
Total anticipated development costs   $ 394,700    
Repayments of preferred equity from unconsolidated affiliates   80,000    
Equity funded to acquire interest in joint venture   86,400    
Additional common equity contribution $ 40,000      
Interest rate, basis spread (in hundredths) 3.50%      
Fair value of debt assumed from acquisition   $ 137,000    
Stated interest rate (in hundredths)   4.50%    
Effective interest rate (in hundredths)   5.30%    
Consolidated Affiliate:        
Term of exercisable right (in years) 2 years      
M+O JV, LLC [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]        
Unconsolidated Affiliates:        
Interest rate basis SOFR      
Midtown East Tampa, LLC [Member]        
Unconsolidated Affiliates:        
Percentage of equity interest in joint ventures, maximum   50.00%    
Total anticipated development costs   $ 83,000    
Equity funded to acquire interest in joint venture $ 13,700      
Interest rate, basis spread (in hundredths) 4.50%      
Amount of loan funded to affiliate $ 0      
Rentable square feet of office property under development (in sq feet) | ft²   143,000    
Total rentable square feet of property under development (in sq feet) | ft²   432,000    
Advance to affiliate 52,300      
Consolidated Affiliate:        
Rentable square feet of office property under development (in sq feet) | ft²   143,000    
Advance to affiliate $ 52,300      
Midtown East Tampa, LLC [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]        
Unconsolidated Affiliates:        
Interest rate basis SOFR      
Brand/HRLP 2827 Peachtree LLC [Member]        
Unconsolidated Affiliates:        
Percentage of equity interest in joint ventures, maximum     50.00%  
Total anticipated development costs     $ 79,000  
Interest rate, basis spread (in hundredths) 3.10%      
Amount of loan funded to affiliate $ 46,900      
Rentable square feet of office property under development (in sq feet) | ft²     135,000  
Contribution of cash to acquire interest in joint venture     $ 13,300  
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 $ 52,800      
Term of optional extension 1 year      
Consolidated Affiliate:        
Rentable square feet of office property under development (in sq feet) | ft²     135,000  
Contribution of cash to acquire interest in joint venture     $ 13,300  
Partner's contribution of property to acquire interest in joint venture     $ 7,700  
Advance to affiliate $ 52,800      
Term of exercisable right (in years) 2 years      
Brand/HRLP 2827 Peachtree LLC [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]        
Unconsolidated Affiliates:        
Interest rate basis SOFR      
Plaza Colonnade, Tenant-in-Common [Member]        
Unconsolidated Affiliates:        
Percentage of equity interest in joint ventures, maximum 50.00%      
Kessinger/Hunter & Company, LC [Member]        
Unconsolidated Affiliates:        
Percentage of equity interest in joint ventures, maximum 26.50%      
v3.24.0.1
Variable Interest Entities (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Consolidated Variable Interest Entity [Abstract]      
Carrying value of investment balance $ 343,241 $ 269,221  
Assets and liabilities of consolidated variable interest entity [Abstract]      
Net real estate assets 4,993,531 5,126,925  
Cash and cash equivalents 25,123 21,357 $ 23,152
Restricted cash 6,446 4,748 $ 8,046
Accounts receivable 28,094 25,481  
Accrued straight-line rents receivable 310,649 293,674  
Deferred leasing costs, net 225,924 252,828  
Prepaid expenses and other assets 65,125 68,091  
Mortgages and notes payable, net 3,213,206 3,197,215  
Accounts payable, accrued expenses and other liabilities 302,180 301,184  
HRLP MTW, LLC [Member]      
Assets and liabilities of consolidated variable interest entity [Abstract]      
Net real estate assets 60,410 59,854  
Cash and cash equivalents 1,096 1,009  
Restricted cash 2,260 0  
Accounts receivable 31 1,490  
Accrued straight-line rents receivable 5,041 1,921  
Deferred leasing costs, net 2,783 2,677  
Prepaid expenses and other assets 124 153  
Mortgages and notes payable, net 44,192 0  
Accounts payable, accrued expenses and other liabilities 2,872 $ 1,212  
Granite Park Six JV, LLC [Member]      
Consolidated Variable Interest Entity [Abstract]      
Risk of loss for variable interest entity 41,900    
Amount of loan funded to affiliate 54,900    
GPI 23 Springs JV, LLC [Member]      
Consolidated Variable Interest Entity [Abstract]      
Risk of loss for variable interest entity 78,700    
Amount of loan funded to affiliate 0    
M+O JV, LLC [Member]      
Consolidated Variable Interest Entity [Abstract]      
Risk of loss for variable interest entity 118,600    
Midtown East Tampa, LLC [Member]      
Consolidated Variable Interest Entity [Abstract]      
Risk of loss for variable interest entity 13,600    
Amount of loan funded to affiliate 0    
Brand/HRLP 2827 Peachtree LLC [Member]      
Consolidated Variable Interest Entity [Abstract]      
Risk of loss for variable interest entity 60,300    
Carrying value of investment balance 13,400    
Amount of loan funded to affiliate $ 46,900    
v3.24.0.1
Intangible Assets and Below Market Lease Liabilities (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Intangible assets and below market lease liabilities, net [Abstract]      
Deferred leasing costs, gross $ 401,621 $ 416,579  
Deferred leasing costs, accumulated amortization (175,697) (163,751)  
Deferred leasing costs, net/Total scheduled future amortization of intangible assets 225,924 252,828  
Acquisition-related below market lease liabilities, gross 50,842 55,304  
Acquisition-related below market lease liabilities, accumulated amortization (30,416) (29,859)  
Acquisition-related below market lease liabilities, net 20,426 25,445  
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 199,407    
Amortization of intangible assets and below market lease liabilities      
Amortization of intangible assets 43,511 44,900 $ 38,173
Lease Incentives [Member]      
Intangible assets and below market lease liabilities, net [Abstract]      
Deferred leasing costs, net/Total scheduled future amortization of intangible assets 12,269    
Amortization of intangible assets and below market lease liabilities      
Amortization of intangible assets 2,816 2,090 1,885
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 14,248    
Amortization of intangible assets and below market lease liabilities      
Amortization of intangible assets 3,338 3,320 1,932
Acquisition-Related Below Market Lease Liabilities [Member]      
Intangible assets and below market lease liabilities, net [Abstract]      
Acquisition-related below market lease liabilities, net 20,426    
Amortization of intangible assets and below market lease liabilities      
Amortization of acquisition-related below market lease liabilities $ (5,019) $ (5,452) $ (5,720)
v3.24.0.1
Intangible Assets and Below Market Lease Liabilities - Scheduled Future Amortization (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Scheduled future amortization of intangible assets [Abstract]    
Deferred leasing costs, net/Total scheduled future amortization of intangible assets $ 225,924 $ 252,828
Scheduled future amortization of below market lease liabilites [Abstract]    
Total scheduled future amortization of below market lease liabilities (20,426) $ (25,445)
Deferred Leasing Costs and Acquisition-Related Intangible Assets (in Depreciation and Amortization) [Member]    
Scheduled future amortization of intangible assets [Abstract]    
2024 39,896  
2025 31,612  
2026 27,323  
2027 23,539  
2028 19,684  
Thereafter 57,353  
Deferred leasing costs, net/Total scheduled future amortization of intangible assets $ 199,407  
Weighted average remaining amortization periods for intangible assets and liabilities [Abstract]    
Intangible assets, weighted average useful life (in years) 7 years 4 months 24 days  
Lease Incentives [Member]    
Scheduled future amortization of intangible assets [Abstract]    
2024 $ 2,279  
2025 1,977  
2026 1,744  
2027 1,543  
2028 1,298  
Thereafter 3,428  
Deferred leasing costs, net/Total scheduled future amortization of intangible assets $ 12,269  
Weighted average remaining amortization periods for intangible assets and liabilities [Abstract]    
Intangible assets, weighted average useful life (in years) 7 years 2 months 12 days  
Acquisition-Related Intangible Assets (in Rental and Other Revenue) [Member]    
Scheduled future amortization of intangible assets [Abstract]    
2024 $ 3,066  
2025 2,210  
2026 1,861  
2027 1,520  
2028 1,404  
Thereafter 4,187  
Deferred leasing costs, net/Total scheduled future amortization of intangible assets $ 14,248  
Weighted average remaining amortization periods for intangible assets and liabilities [Abstract]    
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]    
2024 $ (4,240)  
2025 (2,727)  
2026 (2,431)  
2027 (2,062)  
2028 (1,648)  
Thereafter (7,318)  
Total scheduled future amortization of below market lease liabilities $ (20,426)  
Weighted average remaining amortization periods for intangible assets and liabilities [Abstract]    
Below market lease liabilities, weighted average useful life (in years) 8 years 1 month 6 days  
v3.24.0.1
Mortgages and Notes Payable (Details)
12 Months Ended
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
numberOfBuildings
Dec. 31, 2019
Debt Instrument [Line Items]        
Mortgages and notes payable, net $ 3,213,206,000 $ 3,197,215,000    
Less-unamortized debt issuance costs (17,739,000) (16,393,000)    
Scheduled future principal payments [Abstract]        
2024 6,944,000      
2025 27,156,000      
2026 206,922,000      
2027 458,976,000      
2028 699,168,000      
Thereafter 1,831,779,000      
Less-unamortized debt issuance costs (17,739,000) (16,393,000)    
Mortgages and notes payable, net 3,213,206,000 3,197,215,000    
Gains/(losses) on debt extinguishment $ (602,000) 0 $ (286,000)  
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 $ 9,000,000 4,000,000 $ 9,600,000  
Variable Interest Entity, Primary Beneficiary [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net $ 44,192,000 0    
Percentage of equity interest in consolidated affiliates       80.00%
Effective interest rate (in hundredths) 7.29%      
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net $ 44,192,000 0    
Principal amount of debt 45,000,000      
Debt issuance costs $ 800,000      
Term of debt instrument (in years) 5 years      
Floating to Fixed Interest Rate Swaps (2017) [Member]        
Scheduled future principal payments [Abstract]        
Amount of borrowings outstanding, subject to swaps $ 50,000,000      
Underlying treasury rate term (in years) 1 month      
Weighted average interest rate under derivative instruments (in hundredths) 1.693%      
2023 Forward Starting Swaps [Member]        
Scheduled future principal payments [Abstract]        
Amount of borrowings outstanding, subject to swaps $ 200,000,000      
Underlying treasury rate term (in years) 10 years      
Weighted average interest rate under derivative instruments (in hundredths) 4.498%      
Gain on forward starting interest rate swaps $ (500,000)      
5.69% Mortgage Loan due 2028 [Member]        
Debt Instrument [Line Items]        
Effective interest rate (in hundredths) 5.69%      
Scheduled future principal payments [Abstract]        
Principal amount of debt $ 200,000,000      
Debt issuance costs $ 1,300,000      
Term of debt instrument (in years) 5 years      
3.625% (3.752% effective rate) Notes due 2023 [Member]        
Scheduled future principal payments [Abstract]        
Principal amount of debt   $ 250,000,000    
Stated interest rate (in hundredths)   3.625%    
7.650% (7.836% effective rate) Notes due 2034 [Member]        
Debt Instrument [Line Items]        
Effective interest rate (in hundredths) 7.836%      
Scheduled future principal payments [Abstract]        
Principal amount of debt $ 350,000,000      
Stated interest rate (in hundredths) 7.65%      
Original issuance discount $ 4,600,000      
Debt issuance costs 3,200,000      
Gains/(losses) on debt extinguishment (600,000)      
Variable Rate Term Loan due 2026 [Member]        
Scheduled future principal payments [Abstract]        
Principal amount of debt   $ 200,000,000    
Variable Rate Term Loan due 2027 [Member]        
Scheduled future principal payments [Abstract]        
Temporary reduction in interest rate due to sustainability goals (in hundredths)   0.025%    
Principal amount of debt   $ 150,000,000    
Debt issuance costs   $ 2,700,000    
Variable Rate Term Loan due 2027 [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]        
Scheduled future principal payments [Abstract]        
Interest rate   SOFR    
Interest rate, basis spread (in hundredths)   0.95%    
Variable Rate Term Loan due 2027 [Member] | SOFR Related Spread Adjustment [Member]        
Scheduled future principal payments [Abstract]        
Interest rate, basis spread (in hundredths)   0.10%    
Variable Rate Term Loan due 2024 [Member]        
Scheduled future principal payments [Abstract]        
Temporary reduction in interest rate due to sustainability goals (in hundredths)   0.01%    
Principal amount of debt   $ 200,000,000    
Term of debt instrument (in years)   2 years    
Variable Rate Term Loan due 2024 [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]        
Scheduled future principal payments [Abstract]        
Interest rate   SOFR    
Interest rate, basis spread (in hundredths)   0.95%    
Variable Rate Term Loan due 2024 [Member] | SOFR Related Spread Adjustment [Member]        
Scheduled future principal payments [Abstract]        
Interest rate, basis spread (in hundredths)   0.10%    
Revolving Credit Facility [Member]        
Scheduled future principal payments [Abstract]        
Maximum borrowing capacity on revolving credit facility $ 750,000,000      
Annual facility fee (in hundredths) 0.20%      
Temporary reduction in interest rate due to sustainability goals (in hundredths) 0.01%      
Amount outstanding on revolving credit facility $ 20,000,000      
Outstanding letters of credit on revolving credit facility 900,000      
Unused borrowing capacity on revolving credit facility $ 729,100,000      
Revolving Credit Facility [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]        
Scheduled future principal payments [Abstract]        
Interest rate SOFR      
Interest rate, basis spread (in hundredths) 0.85%      
Revolving Credit Facility [Member] | SOFR Related Spread Adjustment [Member]        
Scheduled future principal payments [Abstract]        
Interest rate, basis spread (in hundredths) 0.10%      
PAC Portfolio Acquisition [Member]        
Debt Instrument [Line Items]        
Effective interest rate (in hundredths)     3.54%  
Scheduled future principal payments [Abstract]        
Principal amount of debt     $ 403,000,000  
Debt issuance costs     $ 3,500,000  
Term of debt instrument (in years)     10 years 8 months 12 days  
Number of loans assumed in acquisition | numberOfBuildings     4  
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  
3.20% (3.363% effective rate) Notes due 2021 [Member]        
Scheduled future principal payments [Abstract]        
Principal amount of debt     $ 150,000,000  
Stated interest rate (in hundredths)     3.20%  
Gains/(losses) on debt extinguishment     $ (100,000)  
Carrying Amount of Notes, Total        
Scheduled future principal payments [Abstract]        
Principal amount of debt $ 2,140,200,000      
Secured indebtedness [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net 720,752,000 $ 483,988,000    
Aggregate undepreciated book value of secured real estate assets 1,237,600,000      
Annual repayments through principal amortization 6,700,000      
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net 720,752,000 483,988,000    
Secured indebtedness [Member] | 5.69% Mortgage Loan due 2028 [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net 200,000,000 0    
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net 200,000,000 0    
Secured indebtedness [Member] | 7.29% Mortgage Loan due 2028 [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net 45,000,000 0    
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net 45,000,000 0    
Secured indebtedness [Member] | 4.27% (3.61% effective rate) mortgage loan due 2028 [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net 110,391,000 113,105,000    
Unamortized premium 2,700,000 3,300,000    
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net 110,391,000 113,105,000    
Secured indebtedness [Member] | 4.0% Mortgage Loan Due 2029 [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net 87,003,000 89,204,000    
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net 87,003,000 89,204,000    
Secured indebtedness [Member] | 3.61% (3.19% effective rate) mortgage loan due 2029 [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net 84,360,000 84,666,000    
Unamortized premium 1,700,000 2,000,000    
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net 84,360,000 84,666,000    
Secured indebtedness [Member] | 3.40% (3.50% effective rate) mortgage loan due 2033 [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net 69,524,000 69,473,000    
Unamortized discount 500,000 500,000    
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net 69,524,000 69,473,000    
Secured indebtedness [Member] | 4.60% (3.73% effective rate) mortgage loan due 2037 [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net 124,474,000 127,540,000    
Unamortized premium 8,600,000 9,300,000    
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net 124,474,000 127,540,000    
Unsecured indebtedness [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net 2,510,193,000 2,729,620,000    
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net 2,510,193,000 2,729,620,000    
Unsecured indebtedness [Member] | 3.875% (4.038% effective rate) Notes due 2027 [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net 298,734,000 298,334,000    
Unamortized discount 1,300,000 1,700,000    
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net 298,734,000 298,334,000    
Unsecured indebtedness [Member] | 4.125% (4.271% effective rate) Notes due 2028 [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net 348,276,000 347,863,000    
Unamortized discount 1,700,000 2,100,000    
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net 348,276,000 347,863,000    
Unsecured indebtedness [Member] | 4.20% (4.234% effective rate) Notes due 2029 [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net 349,484,000 349,386,000    
Unamortized discount 500,000 600,000    
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net 349,484,000 349,386,000    
Unsecured indebtedness [Member] | 3.050% (3.079% effective rate) Notes due 2030 [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net 399,400,000 399,302,000    
Unamortized discount 600,000 700,000    
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net 399,400,000 399,302,000    
Unsecured indebtedness [Member] | 2.600% (2.645% effective rate) Notes due 2031 [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net 398,892,000 398,735,000    
Unamortized discount 1,100,000 1,300,000    
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net 398,892,000 398,735,000    
Unsecured indebtedness [Member] | 7.650% (7.836% effective rate) Notes due 2034 [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net 345,407,000 0    
Unamortized discount 4,600,000      
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net 345,407,000 0    
Unsecured indebtedness [Member] | Variable Rate Term Loan due 2026 [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net $ 200,000,000 200,000,000    
Effective interest rate (in hundredths) 6.35%      
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net $ 200,000,000 200,000,000    
Unsecured indebtedness [Member] | Variable Rate Term Loan due 2027 [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net $ 150,000,000 150,000,000    
Effective interest rate (in hundredths) 6.35%      
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net $ 150,000,000 150,000,000    
Unsecured indebtedness [Member] | Variable Rate Term Loan due 2024 [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net $ 0 200,000,000    
Effective interest rate (in hundredths) 6.35%      
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net $ 0 200,000,000    
Unsecured indebtedness [Member] | Revolving Credit Facility [Member]        
Debt Instrument [Line Items]        
Mortgages and notes payable, net $ 20,000,000 386,000,000    
Effective interest rate (in hundredths) 6.25%      
Scheduled future principal payments [Abstract]        
Mortgages and notes payable, net $ 20,000,000 $ 386,000,000    
v3.24.0.1
Commitments and Contingencies (Details) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Lease and Contractual Commitments [Abstract]    
Lease and contractual commitments $ 204.3  
Accrued amount of lease and contractual commitments 50.7  
Asset Acquisition Contingent Consideration [Member]    
Contingent Consideration [Abstract]    
Asset acquisition, contingent consideration liability $ 0.8 $ 0.8
v3.24.0.1
Noncontrolling Interests (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2019
Noncontrolling Interests in the Operating Partnership [Roll Forward]        
Noncontrolling interests in the Operating Partnership, beginning balance $ 65,977      
Adjustment of noncontrolling interests in the Operating Partnership to fair value (10,152) $ (39,502) $ 11,461  
Conversions of Common Units to Common Stock (4,795) (1,251) (15,076)  
Redemptions of Common Units (163) (3,763) 0  
Net income attributable to noncontrolling interests in the Operating Partnership 3,164 3,670 8,321  
Distributions to noncontrolling interests in the Operating Partnership (4,511) (4,866) (5,516)  
Noncontrolling interests in the Operating Partnership, ending balance 49,520 65,977    
Net Income Available for Common Stockholders and Transfers From Noncontrolling Interests in the Operating Partnership        
Net income available for common stockholders 146,230 156,572 310,791  
Highwoods Properties, Inc. [Member]        
Noncontrolling Interests in the Operating Partnership [Roll Forward]        
Noncontrolling interests in the Operating Partnership, beginning balance 65,977 111,689    
Adjustment of noncontrolling interests in the Operating Partnership to fair value (10,152) (39,502)    
Conversions of Common Units to Common Stock (4,795) (1,251)    
Redemptions of Common Units (163) (3,763)    
Net income attributable to noncontrolling interests in the Operating Partnership 3,164 3,670    
Distributions to noncontrolling interests in the Operating Partnership (4,511) (4,866)    
Noncontrolling interests in the Operating Partnership, ending balance 49,520 65,977 111,689  
Net Income Available for Common Stockholders and Transfers From Noncontrolling Interests in the Operating Partnership        
Net income available for common stockholders 146,230 156,572 310,791  
Increase in additional paid in capital from conversions of Common Units to Common Stock 4,795 1,251 15,076  
Redemptions of Common Units 163 3,763 0  
Change from net income available for common stockholders and transfers from noncontrolling interests $ 151,188 $ 161,586 $ 325,867  
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%
v3.24.0.1
Disclosure About Fair Value of Financial Instruments - Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Assets:        
Mortgages and notes receivable, at fair value $ 4,795 $ 1,051    
Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets) 2,294 2,564    
Total Assets 7,089 3,615    
Liabilities:        
Mortgages and notes payable, net, at fair value 2,927,330 2,832,973    
Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities) 2,294 2,564 $ 2,866 $ 2,573
Total Liabilities 2,929,624 2,835,537    
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) 2,294 2,564    
Total Assets 2,294 2,564    
Liabilities:        
Mortgages and notes payable, net, at fair value 0 0    
Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities) 2,294 2,564    
Total Liabilities 2,294 2,564    
Level 2 [Member]        
Assets:        
Mortgages and notes receivable, at fair value 4,795 1,051    
Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets) 0 0    
Total Assets 4,795 1,051    
Liabilities:        
Mortgages and notes payable, net, at fair value 2,927,330 2,832,973    
Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities) 0 0    
Total Liabilities 2,927,330 2,832,973    
Highwoods Properties, Inc. [Member]        
Assets:        
Noncontrolling Interests in the Operating Partnership 49,520 65,977    
Highwoods Properties, Inc. [Member] | Level 1 [Member]        
Assets:        
Noncontrolling Interests in the Operating Partnership 49,520 65,977    
Highwoods Properties, Inc. [Member] | Level 2 [Member]        
Assets:        
Noncontrolling Interests in the Operating Partnership $ 0 $ 0    
v3.24.0.1
Fair Value Measures and Disclosures - Fair Value Measurement Inputs and Valuation Techniques (Details) - USD ($)
$ in Millions
Sep. 30, 2022
Jun. 30, 2022
Valuation Technique and Input [Abstract]    
Impaired real estate assets $ 1.7 $ 57.4
Measurement Input, Cost to Sell [Member]    
Valuation Technique and Input [Abstract]    
Impairment key assumption (in hundredths)   3.50%
Measurement Input, Discount Rate [Member] | Minimum [Member]    
Valuation Technique and Input [Abstract]    
Impairment key assumption (in hundredths)   13.20%
Measurement Input, Discount Rate [Member] | Maximum [Member]    
Valuation Technique and Input [Abstract]    
Impairment key assumption (in hundredths)   16.20%
Measurement Input, Cap Rate [Member]    
Valuation Technique and Input [Abstract]    
Impairment key assumption (in hundredths)   8.00%
v3.24.0.1
Equity (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Class of Stock [Line Items]      
Net proceeds of Common Stock sold during the period $ 190 $ 5,167 $ 21,664
Number of trading days preceeding Redemption Notice Date (in days) 10 days    
Dividends, Common Stock [Abstract]      
Ordinary dividend $ 1.58 $ 1.82 $ 1.87
Capital gains 0.42 0.18 0.09
Total taxability of dividends per share $ 2.00 $ 2.00 1.96
Dividends, Preferred Stock [Abstract]      
Number of shares outstanding, Preferred Stock (in shares) 28,811 28,821  
Carrying value, Preferred Stock $ 28,811 $ 28,821  
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 68.02 78.48 82.38
Capital gains 18.23 7.77 3.87
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 94,300,000    
Dividends declared per share of Common Stock (in dollars per share) $ 2.00 $ 2.00 1.96
Highwoods Properties, Inc. [Member] | ATM Equity Offering [Member]      
Class of Stock [Line Items]      
Net proceeds of Common Stock sold during the period   $ 6,000  
Average price of Common Stock sold during the period   $ 46.50  
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)   130,011  
Highwoods Realty Limited Partnership [Member]      
Class of Stock [Line Items]      
Distributions declared per share of Common Unit (in dollars per share) $ 2.00 $ 2.00 1.96
Dividends, Preferred Stock [Abstract]      
Number of units outstanding, Preferred Units (in shares) 28,811 28,821  
Carrying value, Preferred Units $ 28,811 $ 28,821  
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
v3.24.0.1
Employee Benefit Plans (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Retirement Benefits [Abstract]      
Outstanding stock options and warrants 527,067 527,067  
Possible future share issuance authorized under equity incentive plans 2,537,816 2,817,293  
Total shares reserved for future issuance 3,064,883 3,344,360  
Possible future share issuance authorized under equity incentive plan restricted stock 500,000    
Stock-based compensation expense $ 6,984 $ 7,552 $ 8,646
Total unrecognized stock-based compensation costs $ 4,000    
Weighted average remaining term of vesting periods (in years) 2 years    
401(k) Savings Plan [Abstract]      
401(k) employer match percentage 75.00%    
401(k) employer match salary limit percentage 6.00%    
401(k) employer contribution $ 1,400 1,400 1,300
Retirement Plan [Abstract]      
Retirement plan qualification years of service (in years) 30 years    
Retirement plan qualification age 55 years    
Retirement plan qualification minimum years of service (in years) 10 years    
Retirement plan immediate vesting percentage 100.00%    
Deferred Compensation [Abstract]      
Marketable securities of non-qualified deferred compensation plan fair value disclosure $ 2,294 2,564  
Non Qualified Deferred Compensation Obligation Fair Value Disclosure [Roll Forward]      
Beginning deferred compensation liability 2,564 2,866 2,573
Mark to market adjustment to deferred compensation (in general and administrative expenses) 243 (302) 293
Distributions from deferred compensation plans (513) 0 0
Ending deferred compensation liability $ 2,294 $ 2,564 $ 2,866
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 77,086 46,656 38,460
Discount percentage on newly issues shares 15.00%    
Discount on newly issued shares expensed as additional compensation $ 300 $ 200 $ 200
Minimum [Member]      
Retirement Benefits [Abstract]      
Officer cash bonus target 35.00%    
Officer cash bonus performance factor 0.00%    
Non officer management cash bonus target 5.00%    
Maximum [Member]      
Retirement Benefits [Abstract]      
Officer cash bonus target 140.00%    
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) 0    
2016 Plan [Member]      
Restricted Stock Activity Rollforward [Abstract]      
Forfeited (in shares)   (20,995)  
2015 Plan [Member]      
Restricted Stock Activity Rollforward [Abstract]      
Forfeited (in shares)     (18,484)
Stock Options [Member]      
Stock Option Activity Rollforward [Abstract]      
Balance of options outstanding (in shares)   512,067 537,373
Options exercised (in shares) 0 0 (25,306)
Options forfeited (in shares) 0 0  
Balance of options outstanding (in shares)     512,067
Stock Option Activity, Weighted Average Exercise Price Rollforward [Abstract]      
Options outstanding, weighted average exercise price (in dollars per share)   $ 46.18 $ 46.07
Options exercised, weighted average exercise price (in dollars per share)     43.76
Options outstanding, weighted average exercise price (in dollars per share)     $ 46.18
Options exercisable (in shares) 512,067 512,067 512,067
Weighted average exercise price (in dollars per share) $ 46.18 $ 46.18 $ 46.18
Weighted average remaining life (in years) 2 years 3 years  
Cash received or receivable from options exercised     $ 1,100
Total instrinsic value of options exercised     100
Total intrinsic value of options outstanding     $ 600
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) 217,833 219,719 209,190
Awarded and issued (in shares) 155,717 99,975 103,120
Vested (in shares) (95,423) (101,082) (89,264)
Forfeited (in shares) (1,819) (779) (3,327)
Balance of restricted stock outstanding (in shares) 276,308 217,833 219,719
Restricted Stock Activity, Weighted Average Grant Date Fair Value Rollforward [Abstract]      
Restricted stock outstanding, weighted average grant date fair value (in dollars per share) $ 43.00 $ 42.63 $ 45.34
Awarded and issued, weighted average grant date fair value (in dollars per share) 26.42 43.58 39.99
Vested, weighted average grant date fair value (in dollars per share) 43.57 42.80 45.90
Forfeited, weighted average grant date fair value (in dollars per share) 34.11 42.37 43.13
Restricted stock outstanding, weighted average grant date fair value (in dollars per share) $ 33.51 $ 43.00 $ 42.63
Fair value at grant date of restricted stock issued $ 4,100 $ 4,400 $ 4,100
Vesting date fair value of restricted stock $ 2,500 $ 4,400 $ 3,600
Grant date fair value of restricted stock (in dollars per share) $ 26.42 $ 43.58 $ 39.99
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    
Restricted Stock Activity Rollforward [Abstract]      
Balance of restricted stock outstanding (in shares) 227,144 229,292 225,184
Awarded and issued (in shares) 126,736 81,832 81,464
Vested (in shares) (65,140) (62,985) (55,452)
Forfeited (in shares) (2,148) (20,995) (21,904)
Balance of restricted stock outstanding (in shares) 286,592 227,144 229,292
Restricted Stock Activity, Weighted Average Grant Date Fair Value Rollforward [Abstract]      
Restricted stock outstanding, weighted average grant date fair value (in dollars per share) $ 38.93 $ 38.00 $ 39.53
Awarded and issued, weighted average grant date fair value (in dollars per share) 27.06 41.94 36.41
Vested, weighted average grant date fair value (in dollars per share) 44.88 45.90 43.01
Forfeited, weighted average grant date fair value (in dollars per share) 35.83 45.90 42.33
Restricted stock outstanding, weighted average grant date fair value (in dollars per share) $ 34.03 $ 38.93 $ 38.00
Fair value at grant date of restricted stock issued $ 3,400 $ 3,400 $ 2,900
Vesting date fair value of restricted stock $ 1,700 $ 2,700 $ 2,200
Company total return, total return-based restricted stock 100.00%    
Vesting percentage, total return-based restricted stock 100.00% 100.00%  
Grant date fair value of restricted stock (in dollars per share) $ 27.06 $ 41.94 $ 36.41
Assumptions Used in Determining Fair Values of Restricted Stock Granted:      
Risk free interest rate 4.40% 1.60% 0.30%
Common stock dividend yield 6.90% 4.50% 4.80%
Expected volatility rate 27.20% 25.80% 26.80%
Dividends paid for previous year 1 year    
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) $ 27.06 $ 41.94 $ 36.41
Grant date fair value of restricted stock (in dollars per share) $ 27.06 $ 41.94 $ 36.41
v3.24.0.1
Earnings Per Share and Per Unit (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Earnings per Common Share/Unit - basic: [Abstract]      
Net income $ 151,330 $ 163,958 $ 323,310
Net (income) attributable to noncontrolling interests in the Operating Partnership (3,164) (3,670) (8,321)
Net (income) attributable to noncontrolling interests in consolidated affiliates 549 (1,230) (1,712)
Dividends on Preferred Stock (2,485) (2,486) (2,486)
Net income available for common stockholders $ 146,230 $ 156,572 $ 310,791
Denominator:      
Denominator for basic earnings per Common Share - weighted average shares (in shares) 105,529 105,120 104,232
Earnings per Common Share - basic:      
Net income available for common stockholders (in dollars per share) $ 1.39 $ 1.49 $ 2.98
Earnings per Common Share/Unit - diluted: [Abstract]      
Net income $ 151,330 $ 163,958 $ 323,310
Net (income) attributable to noncontrolling interests in consolidated affiliates 549 (1,230) (1,712)
Dividends on Preferred Stock (2,485) (2,486) (2,486)
Net income available for common stockholders before net (income) attributable to noncontrolling interests in the Operating Partnership $ 149,394 $ 160,242 $ 319,112
Denominator:      
Denominator for basic earnings per Common Share - weighted average shares (in shares) 105,529 105,120 104,232
Stock options using the treasury method 0 5 18
Noncontrolling interests Common Units 2,256 2,442 2,811
Denominator for diluted earnings per Common Share - adjusted weighted average shares and assumed conversions (in shares) 107,785 107,567 107,061
Earnings per Common Share - diluted:      
Net income available for common stockholders (in dollars per share) $ 1.39 $ 1.49 $ 2.98
Highwoods Realty Limited Partnership [Member]      
Earnings per Common Share/Unit - basic: [Abstract]      
Net income $ 151,330 $ 163,958 $ 323,310
Net (income) attributable to noncontrolling interests in consolidated affiliates 549 (1,230) (1,712)
Distributions on Preferred Units (2,485) (2,486) (2,486)
Net income available for common unitholders $ 149,394 $ 160,242 $ 319,112
Denominator:      
Denominator for basic earnings per Common Unit - weighted average units (in shares) 107,376 107,153 106,634
Earnings per Common Unit - basic:      
Net income available for common unitholders (in dollars per share) $ 1.39 $ 1.50 $ 2.99
Earnings per Common Share/Unit - diluted: [Abstract]      
Net income $ 151,330 $ 163,958 $ 323,310
Net (income) attributable to noncontrolling interests in consolidated affiliates 549 (1,230) (1,712)
Distributions on Preferred Units (2,485) (2,486) (2,486)
Net income available for common unitholders $ 149,394 $ 160,242 $ 319,112
Denominator:      
Denominator for basic earnings per Common Unit - weighted average units (in shares) 107,376 107,153 106,634
Stock options using the treasury method 0 5 18
Denominator for diluted earnings per Common Unit - adjusted weighted average units and assumed conversions (in shares) 107,376 107,158 106,652
Earnings per Common Unit - diluted:      
Net income available for common unitholders (in dollars per share) $ 1.39 $ 1.50 $ 2.99
v3.24.0.1
Income Taxes (Details) - USD ($)
$ / shares in Units, $ in Billions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Highwoods Properties, Inc. [Member]      
Income Tax Disclosure [Line Items]      
Minimum dividend required to maintain REIT status (in dollars per share) $ 1.42 $ 1.60 $ 1.61
Tax basis of assets $ 5.6 $ 5.6  
Tax basis of liabilities 3.5 3.5  
Highwoods Realty Limited Partnership [Member]      
Income Tax Disclosure [Line Items]      
Tax basis of assets 5.4 5.4  
Tax basis of liabilities $ 3.5 $ 3.5  
v3.24.0.1
Segment Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Segment Reporting Information [Abstract]      
Rental and other revenues $ 833,997 $ 828,929 $ 768,007
Total net operating income 565,215 569,123 531,571
Reconciliation to net income:      
Depreciation and amortization (299,411) (287,610) (259,255)
Impairments of real estate assets 0 (36,515) 0
General and administrative expenses (42,857) (42,266) (40,553)
Interest expense (136,710) (105,385) (85,853)
Other income 4,435 1,530 1,394
Gains on disposition of property 47,773 63,546 174,059
Gain on deconsolidation of affiliate 11,778 0 0
Equity in earnings of unconsolidated affiliates 1,107 1,535 1,947
Net income 151,330 163,958 323,310
Total Assets 6,002,928 6,063,376  
Office Total Segment [Member]      
Segment Reporting Information [Abstract]      
Rental and other revenues 776,827 767,568 699,924
Total net operating income 533,600 533,008 491,053
Reconciliation to net income:      
Total Assets 5,315,397 5,470,529  
Office Atlanta, GA [Member]      
Segment Reporting Information [Abstract]      
Rental and other revenues 143,741 143,904 143,612
Total net operating income 89,700 92,297 94,122
Reconciliation to net income:      
Total Assets 907,421 928,406  
Office Charlotte, NC [Member]      
Segment Reporting Information [Abstract]      
Rental and other revenues 85,984 73,721 49,347
Total net operating income 63,921 55,689 38,464
Reconciliation to net income:      
Total Assets 974,846 984,075  
Office Nashville, TN [Member]      
Segment Reporting Information [Abstract]      
Rental and other revenues 171,797 174,341 149,674
Total net operating income 125,417 129,217 110,039
Reconciliation to net income:      
Total Assets 1,259,272 1,290,819  
Office Orlando, FL [Member]      
Segment Reporting Information [Abstract]      
Rental and other revenues 58,002 54,802 51,281
Total net operating income 35,162 32,331 31,301
Reconciliation to net income:      
Total Assets 286,781 287,950  
Office Raleigh, NC [Member]      
Segment Reporting Information [Abstract]      
Rental and other revenues 181,964 182,990 162,115
Total net operating income 132,262 134,904 121,005
Reconciliation to net income:      
Total Assets 1,255,978 1,288,878  
Office Richmond, VA [Member]      
Segment Reporting Information [Abstract]      
Rental and other revenues 35,918 43,084 45,941
Total net operating income 24,756 28,879 31,726
Reconciliation to net income:      
Total Assets 157,299 196,435  
Office Tampa, FL [Member]      
Segment Reporting Information [Abstract]      
Rental and other revenues 99,421 94,726 97,954
Total net operating income 62,382 59,691 64,396
Reconciliation to net income:      
Total Assets 473,800 493,966  
Other Segment [Member]      
Segment Reporting Information [Abstract]      
Rental and other revenues 57,170 61,361 68,083
Total net operating income 31,615 36,115 $ 40,518
Reconciliation to net income:      
Total Assets $ 687,531 $ 592,847  
v3.24.0.1
Subsequent Events (Details)
12 Months Ended
Jan. 31, 2024
$ / shares
Jan. 25, 2024
USD ($)
numberOfBuildings
Dec. 31, 2023
USD ($)
$ / shares
Dec. 31, 2022
USD ($)
$ / shares
Dec. 31, 2021
USD ($)
$ / shares
Jan. 26, 2024
USD ($)
Subsequent Event [Line Items]            
Gains/(losses) on debt extinguishment     $ (602,000) $ 0 $ (286,000)  
Revolving Credit Facility [Member]            
Subsequent Event [Line Items]            
Maximum borrowing capacity on revolving credit facility     $ 750,000,000      
Annual facility fee (in hundredths)     0.20%      
Temporary reduction in interest rate due to sustainability goals (in hundredths)     0.01%      
Amount outstanding on revolving credit facility     $ 20,000,000      
Outstanding letters of credit on revolving credit facility     900,000      
Unused borrowing capacity on revolving credit facility     $ 729,100,000      
Revolving Credit Facility [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]            
Subsequent Event [Line Items]            
Interest rate     SOFR      
Interest rate, basis spread (in hundredths)     0.85%      
Revolving Credit Facility [Member] | SOFR Related Spread Adjustment [Member]            
Subsequent Event [Line Items]            
Interest rate, basis spread (in hundredths)     0.10%      
Subsequent Event [Member] | Revolving Credit Facility [Member]            
Subsequent Event [Line Items]            
Maximum borrowing capacity on revolving credit facility   $ 750,000,000        
Number of additional maturity extensions | numberOfBuildings   2        
Term of optional extensions   6 months        
Annual facility fee (in hundredths)   0.20%        
Temporary reduction in interest rate due to sustainability goals (in hundredths)   0.025%        
Debt issuance costs   $ 7,900,000        
Gains/(losses) on debt extinguishment   $ (200,000)        
Amount outstanding on revolving credit facility           $ 36,000,000
Outstanding letters of credit on revolving credit facility           900,000
Unused borrowing capacity on revolving credit facility           $ 713,100,000
Subsequent Event [Member] | Revolving Credit Facility [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]            
Subsequent Event [Line Items]            
Interest rate   SOFR        
Interest rate, basis spread (in hundredths)   0.85%        
Subsequent Event [Member] | Revolving Credit Facility [Member] | SOFR Related Spread Adjustment [Member]            
Subsequent Event [Line Items]            
Interest rate, basis spread (in hundredths)   0.10%        
Highwoods Properties, Inc. [Member]            
Subsequent Event [Line Items]            
Dividends declared per share of Common Stock (in dollars per share) | $ / shares     $ 2.00 $ 2.00 $ 1.96  
Highwoods Properties, Inc. [Member] | Subsequent Event [Member]            
Subsequent Event [Line Items]            
Dividends declared per share of Common Stock (in dollars per share) | $ / shares $ 0.50          
v3.24.0.1
Schedule III (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
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 $ 6,728,003 $ 6,689,692 $ 6,486,136
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,743,390 1,609,502 1,457,511
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Federal Income Tax Basis 6,600,000    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, beginning balance 6,689,692 6,486,136 5,594,833
Acquisitions, development and improvements 226,066 378,587 1,248,256
Cost of real estate sold, retired and deconsolidated (187,755) (175,031) (356,953)
Real estate assets, ending balance 6,728,003 6,689,692 6,486,136
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, beginning balance 1,609,502 1,457,511 1,421,956
Depreciation expense 253,151 240,273 218,628
Real estate sold, retired and deconsolidated (119,263) (88,282) (183,073)
Accumulated depreciation, ending balance 1,743,390 1,609,502 1,457,511
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 6,728,003 6,689,692 6,486,136
Development in process exclusive of land included in Schedule III 8,918 46,735 6,890
Real estate assets, net, held for sale 0 0 (3,482)
Total real estate assets 6,736,921 6,736,427 6,489,544
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,743,390 1,609,502 1,457,511
Real estate assets, net, held for sale 0 0 0
Total accumulated depreciation 1,743,390 $ 1,609,502 $ 1,457,511
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 639    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 2    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 3,121    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 3,123    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,662    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 3,123    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 1,662    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 3,123    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,662    
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 6,311    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,444    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 35,392    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 36,836    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 22,480    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 36,836    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 22,480    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 36,836    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 22,480    
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 15,204    
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 15,204    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 16,371    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,169    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 16,371    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 8,169    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 16,371    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,169    
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 9,038    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 17,962    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 17,962    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 11,278    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 17,962    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 11,278    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 17,962    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 11,278    
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 9,395    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 23,827    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 23,827    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 14,339    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 23,827    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 14,339    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 23,827    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 14,339    
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 15,514    
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 15,514    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 15,920    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,384    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 15,920    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 9,384    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 15,920    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,384    
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 11,507    
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 11,507    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 11,835    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,114    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 11,835    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 5,114    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 11,835    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,114    
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 2,933    
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 2,933    
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 2,933    
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 5,541    
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 16,220    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 16,220    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,543    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 16,220    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 9,543    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 16,220    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,543    
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 21,669    
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 43,312    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 43,312    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 24,379    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 43,312    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 24,379    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 43,312    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 24,379    
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 11,587    
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 32,036    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 32,036    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 20,147    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 32,036    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 20,147    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 32,036    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 20,147    
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 5,020    
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 13,587    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 14,877    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,863    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 14,877    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 7,863    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 14,877    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,863    
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 4,764    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,380    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 12,497    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 13,877    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,554    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 13,877    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 6,554    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 13,877    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,554    
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 31,582    
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 96,495    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 102,251    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 34,264    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 102,251    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 34,264    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 102,251    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 34,264    
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 756    
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 126,305    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 135,884    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 41,606    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 135,884    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 41,606    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 135,884    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 41,606    
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 24,548    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 14,775    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 147,619    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 162,394    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 45,240    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 162,394    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 45,240    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 162,394    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 45,240    
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 8,153    
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 34,487    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 39,836    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 11,367    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 39,836    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 11,367    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 39,836    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 11,367    
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 8,223    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 5,103    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 31,034    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 36,137    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,905    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 36,137    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 8,905    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 36,137    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,905    
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 2,033    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 5,227    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 91,741    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 96,968    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 19,819    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 96,968    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 19,819    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 96,968    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 19,819    
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 123    
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 123    
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 123    
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 25,268    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 22,717    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 168,336    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 191,053    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 41,899    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 191,053    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 41,899    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 191,053    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 41,899    
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 19,637    
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 108,599    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 136,277    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 24,488    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 136,277    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 24,488    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 136,277    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 24,488    
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 19,740    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land (1,938)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 697    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 17,802    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 697    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 18,499    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 99    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 18,499    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 99    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 18,499    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 99    
Charlotte, NC - Bank of America Tower [Member]      
Real Estate and Accumulated Depreciation [Line Items]      
Real Estate and Accumulated Depreciation, Encumbrances 200,000    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate 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 28,069    
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 382,818    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 412,091    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 47,795    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 412,091    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 47,795    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 412,091    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 47,795    
Charlotte, NC - One Morrocroft [Member]      
Real Estate and Accumulated Depreciation [Line Items]      
Real Estate and Accumulated Depreciation, Encumbrances 69,500    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land 3,655    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 28,357    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land (198)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 4,697    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 3,457    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 33,054    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 36,511    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,114    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 36,511    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 3,114    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 36,511    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,114    
Charlotte, NC - Two Morrocroft [Member]      
Real Estate and Accumulated Depreciation [Line Items]      
Real Estate and Accumulated Depreciation, Encumbrances 69,500    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land 3,530    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 28,804    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land (190)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 1,675    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 3,340    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 30,479    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 33,819    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,716    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 33,819    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 2,716    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 33,819    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,716    
Charlotte, NC - Three Morrocroft [Member]      
Real Estate and Accumulated Depreciation [Line Items]      
Real Estate and Accumulated Depreciation, Encumbrances 69,500    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land 3,566    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 30,505    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land (192)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 11    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 3,374    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 30,516    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 33,890    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,737    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 33,890    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 2,737    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 33,890    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,737    
Charlotte, NC - Capitol Towers North [Member]      
Real Estate and Accumulated Depreciation [Line Items]      
Real Estate and Accumulated Depreciation, Encumbrances 124,500    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land 8,642    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 96,254    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land 0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 768    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 8,642    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 97,022    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 105,664    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,304    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 105,664    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 7,304    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 105,664    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,304    
Charlotte, NC - Capitol Towers South [Member]      
Real Estate and Accumulated Depreciation [Line Items]      
Real Estate and Accumulated Depreciation, Encumbrances 124,500    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land 9,095    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 95,458    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land 0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 132    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 9,095    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 95,590    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 104,685    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,568    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 104,685    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 7,568    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 104,685    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,568    
Charlotte, NC - 1426 S. Tryon - 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 26,702    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land (421)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 26,281    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 0    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 26,281    
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 26,281    
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 26,281    
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 - SIX50 at Legacy Union [Member]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land 16,504    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 166,305    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land 0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 1,400    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 16,504    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 167,705    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 184,209    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,741    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 184,209    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 7,741    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 184,209    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,741    
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 12,678    
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 40,168    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 43,193    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 22,235    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 43,193    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 22,235    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 43,193    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 22,235    
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 7,269    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 5,862    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 30,186    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 36,048    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 19,087    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 36,048    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 19,087    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 36,048    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 19,087    
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 5,623    
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 12,824    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 14,687    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,977    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 14,687    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 7,977    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 14,687    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,977    
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 3,998    
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 3,998    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 3,998    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,617    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 3,998    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 1,617    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 3,998    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,617    
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 4,468    
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 4,468    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 4,468    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,875    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 4,468    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 1,875    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 4,468    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,875    
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 16,867    
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 16,867    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 18,465    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,850    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 18,465    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 9,850    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 18,465    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,850    
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 25,482    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 2,170    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 25,482    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 27,652    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,177    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 27,652    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 12,177    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 27,652    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,177    
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 23,704    
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 23,704    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 26,139    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,823    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 26,139    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 7,823    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 26,139    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,823    
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 25,288    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,715    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 25,288    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 27,003    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,013    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 27,003    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 8,013    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 27,003    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,013    
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 50,813    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 3,983    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 50,813    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 54,796    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 17,033    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 54,796    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 17,033    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 54,796    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 17,033    
Nashville, TN - Harpeth 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 8,608    
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 14,285    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 15,704    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,543    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 15,704    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 5,543    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 15,704    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,543    
Nashville, TN - Harpeth 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 10,438    
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 17,087    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 18,747    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,841    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 18,747    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 6,841    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 18,747    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,841    
Nashville, TN - Harpeth 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 10,936    
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 17,778    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 19,491    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,007    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 19,491    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 7,007    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 19,491    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,007    
Nashville, TN - Harpeth 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 10,965    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 859    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 10,965    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 11,824    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,087    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 11,824    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,087    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 11,824    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,087    
Nashville, TN - Hickory Trace [Member]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land 1,164    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land 164    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 5,989    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,328    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 5,989    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 7,317    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,024    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 7,317    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 3,024    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 7,317    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,024    
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 9,199    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,859    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 9,199    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 11,058    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,588    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 11,058    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 5,588    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 11,058    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,588    
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 7,642    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,755    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 7,642    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 9,397    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,372    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 9,397    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,372    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 9,397    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,372    
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 14,814    
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 14,814    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 17,482    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,144    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 17,482    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 7,144    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 17,482    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,144    
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 9,493    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,965    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 9,493    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 11,458    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,476    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 11,458    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 5,476    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 11,458    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,476    
Nashville, TN - Westwood South [Member]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land 2,106    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land 382    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 11,190    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 2,488    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 11,190    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 13,678    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,041    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 13,678    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 7,041    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 13,678    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,041    
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 7,687    
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 14,945    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 16,442    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,328    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 16,442    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 6,328    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 16,442    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,328    
Nashville, TN - The Pinnacle at Symphony Place [Member]      
Real Estate and Accumulated Depreciation [Line Items]      
Real Estate and Accumulated Depreciation, Encumbrances 87,003    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate 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 6,181    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 147,650    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 147,650    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 51,151    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 147,650    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 51,151    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 147,650    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 51,151    
Nashville, TN - Seven Springs East [Member]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate 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 520    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 2,525    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 38,107    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 40,632    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,149    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 40,632    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 12,149    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 40,632    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,149    
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 691    
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 8,914    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 9,717    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,663    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 9,717    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 3,663    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 9,717    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,663    
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 4,120    
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 55,426    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 57,865    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 11,916    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 57,865    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 11,916    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 57,865    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 11,916    
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 3,432    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 2,356    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 33,480    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 35,836    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,563    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 35,836    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 7,563    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 35,836    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,563    
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 457    
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 170,039    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 189,262    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 31,117    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 189,262    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 31,117    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 189,262    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 31,117    
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 3,988    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 4,821    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 30,436    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 35,257    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,315    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 35,257    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 3,315    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 35,257    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,315    
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 161    
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 87,635    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 94,645    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 15,360    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 94,645    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 15,360    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 94,645    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 15,360    
Nashville, TN - Virginia 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 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 308    
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 25,940    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 30,474    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,732    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 30,474    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,732    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 30,474    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,732    
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 (259)    
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 29,586    
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 29,586    
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 29,586    
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 29,586    
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 33,219    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 230,569    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land 0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 2,780    
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 233,349    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 266,568    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 17,157    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 266,568    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 17,157    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 266,568    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 17,157    
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 89,231    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land 192    
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 89,423    
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 89,423    
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 89,423    
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 89,423    
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 (1,205)    
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 5,013    
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 5,539    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 31    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 5,539    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 31    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 5,539    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 31    
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 16,121    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land (28)    
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 16,093    
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 16,093    
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 16,093    
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 16,093    
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 1,692    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 11,543    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 11,543    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,963    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 11,543    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 7,963    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 11,543    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,963    
Orlando - 201 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 3,893    
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 14,687    
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 44,228    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 48,121    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 13,704    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 48,121    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 13,704    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 48,121    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 13,704    
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 14,697    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 4,346    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 58,091    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 62,437    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 15,476    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 62,437    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 15,476    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 62,437    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 15,476    
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 10,693    
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 38,014    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 41,496    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 11,798    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 41,496    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 11,798    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 41,496    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 11,798    
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 11,894    
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 33,925    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 38,668    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,873    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 38,668    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 10,873    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 38,668    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,873    
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 12,160    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 6,207    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 34,815    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 41,022    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,180    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 41,022    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 12,180    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 41,022    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,180    
Orlando - Bank of America 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 3,490    
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 11,401    
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 67,480    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 70,970    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 16,215    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 70,970    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 16,215    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 70,970    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 16,215    
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 15,584    
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 26,744    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 32,529    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,732    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 32,529    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 6,732    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 32,529    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,732    
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 57,996    
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 165,639    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 175,458    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 58,449    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 175,458    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 58,449    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 175,458    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 58,449    
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 15,373    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 2,302    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 26,351    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 28,653    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,649    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 28,653    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 8,649    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 28,653    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,649    
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 5,277    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 501    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 8,200    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 8,701    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,690    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 8,701    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 3,690    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 8,701    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,690    
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 3,378    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 620    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 6,617    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 7,237    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,786    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 7,237    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 2,786    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 7,237    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,786    
Pittsburgh, PA - Five PPG Place [Member]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land 803    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 4,924    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land 0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 3,007    
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 7,931    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 8,734    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,842    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 8,734    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 2,842    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 8,734    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,842    
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 16,079    
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 41,681    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 45,034    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 15,906    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 45,034    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 15,906    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 45,034    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 15,906    
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 (6,000)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements (5,867)    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 10,457    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 77,945    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 88,402    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 37,168    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 88,402    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 37,168    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 88,402    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 37,168    
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 (1,204)    
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 1,274    
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 1,274    
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 1,274    
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 1,274    
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 6,237    
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 17,231    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 17,231    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 11,057    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 17,231    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 11,057    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 17,231    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 11,057    
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 17,946    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 318    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 17,946    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 18,264    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,889    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 18,264    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 9,889    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 18,264    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,889    
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 7,472    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 2,678    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 25,102    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 27,780    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 17,202    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 27,780    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 17,202    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 27,780    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 17,202    
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 13,031    
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 13,031    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 14,131    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,345    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 14,131    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 6,345    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 14,131    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,345    
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 1,022    
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 5,628    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 6,350    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,969    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 6,350    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 3,969    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 6,350    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,969    
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 2,731    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 462    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 4,141    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 4,603    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,333    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 4,603    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 2,333    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 4,603    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,333    
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 14,485    
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 14,485    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 15,623    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,749    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 15,623    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 6,749    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 15,623    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,749    
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 12,336    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,264    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 12,336    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 13,600    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,808    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 13,600    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 5,808    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 13,600    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,808    
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 2,197    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,291    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 36,769    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 38,060    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,583    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 38,060    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 9,583    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 38,060    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,583    
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 14,784    
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 14,784    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 16,166    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,196    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 16,166    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 6,196    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 16,166    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,196    
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 13,765    
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 13,765    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 15,100    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,491    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 15,100    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 5,491    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 15,100    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,491    
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 65    
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 65    
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 65    
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 23,241    
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 23,241    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 25,489    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 11,934    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 25,489    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 11,934    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 25,489    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 11,934    
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 20,795    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 2,152    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 20,795    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 22,947    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,920    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 22,947    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 8,920    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 22,947    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,920    
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 22,210    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 576    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 22,210    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 22,786    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,899    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 22,786    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 7,899    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 22,786    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,899    
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 19,465    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,844    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 19,465    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 21,309    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,277    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 21,309    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 10,277    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 21,309    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,277    
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 8,064    
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 8,064    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 8,328    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,069    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 8,328    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 5,069    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 8,328    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,069    
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 22    
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 22    
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 22    
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 1,077    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,450    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 7,388    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 8,838    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,519    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 8,838    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 2,519    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 8,838    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,519    
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 5,904    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 256    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 5,904    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 6,160    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,183    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 6,160    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 2,183    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 6,160    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,183    
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 10,796    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 691    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 10,796    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 11,487    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,327    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 11,487    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 6,327    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 11,487    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,327    
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 (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 2,665    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 16,795    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 19,460    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,076    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 19,460    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,076    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 19,460    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,076    
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 71,200    
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 71,200    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 72,406    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 32,059    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 72,406    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 32,059    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 72,406    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 32,059    
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 3,066    
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 6,796    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 7,674    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,547    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 7,674    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,547    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 7,674    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,547    
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 1,113    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 362    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 2,931    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 3,293    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,320    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 3,293    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 2,320    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 3,293    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,320    
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 1,709    
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 4,525    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 5,444    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,155    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 5,444    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 3,155    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 5,444    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,155    
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 3,894    
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 3,894    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 4,480    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,609    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 4,480    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 2,609    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 4,480    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,609    
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 9,988    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,485    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 9,988    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 11,473    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,620    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 11,473    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,620    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 11,473    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,620    
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 1,796    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 666    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 4,461    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 5,127    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,666    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 5,127    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 2,666    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 5,127    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,666    
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 1,677    
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 6,210    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 7,296    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,035    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 7,296    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,035    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 7,296    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,035    
Raleigh, NC - 4800 Six Forks Road [Member]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land 862    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 4,411    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land 0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 2,546    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 862    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 6,957    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 7,819    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,670    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 7,819    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,670    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 7,819    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,670    
Raleigh, NC - 4601 Creekstone Drive [Member]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land 255    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land 217    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 6,507    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 472    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 6,507    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 6,979    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,470    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 6,979    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 3,470    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 6,979    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,470    
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 (19,528)    
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 3,243    
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 3,243    
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 3,243    
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 3,243    
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 6,552    
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 6,552    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 7,278    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,969    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 7,278    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 3,969    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 7,278    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,969    
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 16,644    
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 35,494    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 38,145    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,110    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 38,145    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 12,110    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 38,145    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,110    
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 1,229    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 2,263    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 31,493    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 33,756    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,346    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 33,756    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 10,346    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 33,756    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,346    
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 60    
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 13,248    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 14,074    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,366    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 14,074    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,366    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 14,074    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,366    
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 15    
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 3,524    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 3,565    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 798    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 3,565    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 798    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 3,565    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 798    
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 14    
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 2,336    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 2,363    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 528    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 2,363    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 528    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 2,363    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 528    
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 25,572    
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 93,947    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 105,235    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 30,250    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 105,235    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 30,250    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 105,235    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 30,250    
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 1,575    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 7,559    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 0    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 7,559    
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 7,559    
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 7,559    
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 4,016    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 7,267    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 69,897    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 77,164    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 16,034    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 77,164    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 16,034    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 77,164    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 16,034    
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 356    
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 150,245    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 171,825    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 33,564    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 171,825    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 33,564    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 171,825    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 33,564    
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 (44)    
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 37,288    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 38,950    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,145    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 38,950    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,145    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 38,950    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,145    
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 (507)    
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 8,741    
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 8,741    
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 8,741    
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 8,741    
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 1,278    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 27,809    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land 0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 1,686    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,278    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 29,495    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 30,773    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,510    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 30,773    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 3,510    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 30,773    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,510    
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 1,327    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 18,088    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land 0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 151    
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 18,239    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 19,566    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,328    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 19,566    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 2,328    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 19,566    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,328    
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 994    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 23,931    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land 0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 1,480    
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 25,411    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 26,405    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,421    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 26,405    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 3,421    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 26,405    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,421    
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 2,118    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 43,889    
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 279    
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 44,168    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 46,286    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,970    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 46,286    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,970    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 46,286    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,970    
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 1,552    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 26,263    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land 0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 1,505    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,552    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 27,768    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 29,320    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,889    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 29,320    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 3,889    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 29,320    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,889    
Raleigh, NC - Captrust Tower [Member]      
Real Estate and Accumulated Depreciation [Line Items]      
Real Estate and Accumulated Depreciation, Encumbrances 84,360    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land 9,670    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 124,530    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land 0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 3,991    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 9,670    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 128,521    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 138,191    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,428    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 138,191    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 9,428    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 138,191    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,428    
Raleigh, NC - 150 Fayetteville [Member]      
Real Estate and Accumulated Depreciation [Line Items]      
Real Estate and Accumulated Depreciation, Encumbrances 110,391    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land 7,677    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 130,049    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land 0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 17,401    
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 147,450    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 155,127    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,307    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 155,127    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 12,307    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 155,127    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,307    
Raleigh, NC - GlenLake 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 3,981    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 65,660    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 3,981    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 65,660    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 69,641    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 550    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 69,641    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 550    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 69,641    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 550    
Raleigh, NC - 2205 Evans Road - Land [Member]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land 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 2,676    
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 2,676    
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 2,676    
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 2,676    
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 2,676    
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 - 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 (15,828)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 6,837    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 11,432    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 27,705    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 39,137    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,640    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 39,137    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 10,640    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 39,137    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 10,640    
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 2,742    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,339    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 8,053    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 9,392    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,694    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 9,392    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,694    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 9,392    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,694    
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 3,021    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,364    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 9,126    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 10,490    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,306    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 10,490    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,306    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 10,490    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,306    
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 5,038    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 979    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 5,038    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 6,017    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,539    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 6,017    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 2,539    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 6,017    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 2,539    
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 14,072    
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 14,072    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 15,782    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,421    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 15,782    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 8,421    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 15,782    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,421    
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 10,951    
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 10,951    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 11,963    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,521    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 11,963    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 5,521    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 11,963    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,521    
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 8,210    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 794    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 8,210    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 9,004    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,876    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 9,004    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,876    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 9,004    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,876    
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 6,334    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,096    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 6,334    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 7,430    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,311    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 7,430    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 3,311    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 7,430    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,311    
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 7,706    
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 7,706    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 8,676    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,262    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 8,676    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,262    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 8,676    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,262    
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 2,887    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,205    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 7,712    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 8,917    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,361    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 8,917    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,361    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 8,917    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,361    
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 3,129    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 2,169    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 11,788    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 13,957    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,081    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 13,957    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 7,081    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 13,957    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,081    
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 13,947    
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 13,947    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 15,035    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,494    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 15,035    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 6,494    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 15,035    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 6,494    
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 11,410    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,978    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 11,410    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 13,388    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,544    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 13,388    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,544    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 13,388    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,544    
Richmond, VA - North End - 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 3    
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 3    
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 3    
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 22,374    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 356    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 22,374    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 22,730    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 13,031    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 22,730    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 13,031    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 22,730    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 13,031    
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 (179)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 367    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,421    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 9,231    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 10,652    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,173    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 10,652    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,173    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 10,652    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,173    
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 12,445    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 2,276    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 12,445    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 14,721    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,522    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 14,721    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 5,522    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 14,721    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,522    
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 4,988    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,117    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 16,618    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 17,735    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,773    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 17,735    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 9,773    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 17,735    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,773    
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 13,839    
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 13,839    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 15,182    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,662    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 15,182    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 7,662    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 15,182    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,662    
Richmond, VA - Stony Point III [Member]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land 995    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land 0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 10,501    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 995    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 10,501    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 11,496    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,516    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 11,496    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 5,516    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 11,496    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,516    
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 13,659    
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 13,659    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 14,614    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,024    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 14,614    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 5,024    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 14,614    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,024    
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 3,491    
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 9,527    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 10,843    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,717    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 10,843    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,717    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 10,843    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,717    
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 677    
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 8,926    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 9,840    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,406    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 9,840    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,406    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 9,840    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,406    
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 6,379    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 2,673    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 22,849    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 25,522    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,488    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 25,522    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 9,488    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 25,522    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,488    
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 3,891    
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 15,708    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 17,984    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,721    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 17,984    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 8,721    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 17,984    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,721    
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 38,207    
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 38,207    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 41,708    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 16,401    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 41,708    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 16,401    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 41,708    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 16,401    
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 4,294    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 10,551    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 10,551    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,736    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 10,551    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 5,736    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 10,551    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 5,736    
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 41,220    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 2,106    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 41,309    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 43,415    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 25,899    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 43,415    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 25,899    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 43,415    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 25,899    
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 13,455    
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 29,303    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 31,975    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 17,383    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 31,975    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 17,383    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 31,975    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 17,383    
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 7,126    
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 14,495    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 14,495    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,199    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 14,495    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 9,199    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 14,495    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 9,199    
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 3,197    
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 3,197    
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 3,197    
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 15,916    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 2,016    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 41,168    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 43,184    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 22,066    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 43,184    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 22,066    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 43,184    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 22,066    
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 3,758    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 13,165    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 13,165    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,538    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 13,165    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 7,538    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 13,165    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 7,538    
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 7,052    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 0    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 23,446    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 23,446    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 14,425    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 23,446    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 14,425    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 23,446    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 14,425    
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 3,514    
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 3,514    
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 3,514    
Tampa, FL - Spectrum [Member]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land 1,454    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 14,502    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land 0    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 6,513    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,454    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 21,015    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 22,469    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,054    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 22,469    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 12,054    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 22,469    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 12,054    
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 10,011    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 3,218    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 29,909    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 33,127    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 17,242    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 33,127    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 17,242    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 33,127    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 17,242    
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 1,754    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,126    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 6,940    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 8,066    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,380    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 8,066    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 4,380    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 8,066    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 4,380    
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 5,464    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 1,849    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 27,827    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 29,676    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,416    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 29,676    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 8,416    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 29,676    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,416    
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 6,848    
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 26,436    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 27,738    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,604    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 27,738    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 8,604    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 27,738    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,604    
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 43,901    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 6,310    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 43,901    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 50,211    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,833    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 50,211    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 8,833    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 50,211    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 8,833    
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 29,849    
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 131,987    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 133,967    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 32,733    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 133,967    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 32,733    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 133,967    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 32,733    
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]      
Real Estate and Accumulated Depreciation [Line Items]      
Real Estate and Accumulated Depreciation, Encumbrances 45,000    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land 16,543    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 34,818    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land (218)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 9,931    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 16,325    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 44,749    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 61,074    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,670    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 61,074    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 3,670    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 61,074    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 3,670    
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 807,561    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements 4,271,654    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]      
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land (40,453)    
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements 1,689,241    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]      
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land 767,108    
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements 5,960,895    
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets 6,728,003    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation 1,743,390    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]      
Real estate assets, ending balance 6,728,003    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]      
Accumulated depreciation, ending balance 1,743,390    
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]      
Total real estate assets per Schedule III 6,728,003    
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]      
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation $ 1,743,390    
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 - 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 - One 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 - Two 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 - Three 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 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] | Charlotte, NC - Capitol Towers 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] | Charlotte, NC - 1426 S. Tryon - 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] | Charlotte, NC - SIX50 at Legacy Union [Member]      
Real 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 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 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 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 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 - 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 [Member]      
Real 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 - Virginia 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 - 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 - 201 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 - 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 - Bank of America 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, 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 - 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 - 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 - GlenLake 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 - 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 - 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 - 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 - North End - 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] | 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 - 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 - 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 - 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 - One 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 - Two 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 - Three 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 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] | Charlotte, NC - Capitol Towers 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] | Charlotte, NC - 1426 S. Tryon - 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] | Charlotte, NC - SIX50 at Legacy Union [Member]      
Real 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 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 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 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 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 - 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 [Member]      
Real 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 - Virginia 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 - 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 - 201 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 - 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 - Bank of America 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, 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 - 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 - 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 - GlenLake 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 - 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 - 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 - 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 - North End - 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] | 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 - 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 - 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