Highwoods Realty Limited Partnership 10-K 9 Feb 21 2020 FY Annual report Financial data

Cover Page

Cover Page - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2020	Jan. 29, 2021	Jun. 30, 2020
Entity Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2020
Document Transition Report	false
Entity Registrant Name	HIGHWOODS PROPERTIES, INC.
Entity Incorporation, State or Country Code	MD
Entity File Number	001-13100
Entity Tax Identification Number	56-1871668
Entity Address, Address Line One	3100 Smoketree Court
Entity Address, Address Line Two	Suite 600
Entity Address, City or Town	Raleigh
Entity Address, State or Province	NC
Entity Address, Postal Zip Code	27604
City Area Code	919
Local Phone Number	872-4924
Title of 12(b) Security	Common Stock, $.01 par value, of Highwoods Properties, Inc.
Trading Symbol	HIW
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 3.8
Entity Common Stock, Shares Outstanding		103,921,110
Entity Central Index Key	0000921082
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Amendment Flag	false
Highwoods Realty Limited Partnership [Member]
Entity Information [Line Items]
Entity Registrant Name	HIGHWOODS REALTY LIMITED PARTNERSHIP
Entity Incorporation, State or Country Code	NC
Entity File Number	000-21731
Entity Tax Identification Number	56-1869557
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	false
Entity Shell Company	false
Entity Central Index Key	0000941713
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Amendment Flag	false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Real estate assets, at cost:
Land	$ 466,872	$ 515,095
Buildings and tenant improvements	4,981,637	5,128,150
Development in-process	259,681	172,706
Land held for development	131,474	99,163
Total real estate assets	5,839,664	5,915,114
Less-accumulated depreciation	(1,418,379)	(1,388,566)
Net real estate assets	4,421,285	4,526,548
Real estate and other assets, net, held for sale	11,360	20,790
Cash and cash equivalents	109,322	9,505
Restricted cash	79,922	5,237
Accounts receivable	27,488	23,370
Mortgages and notes receivable	1,341	1,501
Accrued straight-line rents receivable	259,381	234,652
Investments in and advances to unconsolidated affiliates	27,104	26,298
Deferred leasing costs, net of accumulated amortization of $151,698 and $146,125, respectively	209,329	231,347
Prepaid expenses and other assets, net of accumulated depreciation of $21,154 and $20,017, respectively	62,885	58,996
Total Assets	5,209,417	5,138,244
Liabilities, Noncontrolling Interests in the Operating Partnership and Equity/Liabilities, Redeemable Operating Partnership Units and Capital:
Mortgages and notes payable, net	2,470,021	2,543,710
Accounts payable, accrued expenses and other liabilities	268,727	286,911
Total Liabilities	2,738,748	2,830,621
Commitments and contingencies
Noncontrolling interests in the Operating Partnership	112,499	133,216
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), 28,826 and 28,859 shares issued and outstanding, respectively	28,826	28,859
Common Stock, $.01 par value, 200,000,000 authorized shares; 103,921,546 and 103,756,046 shares issued and outstanding, respectively	1,039	1,038
Additional paid-in capital	2,993,946	2,954,779
Distributions in excess of net income available for common stockholders	(686,225)	(831,808)
Accumulated other comprehensive loss	(1,462)	(471)
Total Stockholders’ Equity	2,336,124	2,152,397
Noncontrolling interests in consolidated affiliates	22,046	22,010
Total Equity/Capital:	2,358,170	2,174,407
Total Liabilities, Noncontrolling Interests in the Operating Partnership and Equity/Total Liabilities, Redeemable Operating Partnership Units and Capital	5,209,417	5,138,244
Highwoods Realty Limited Partnership [Member]
Real estate assets, at cost:
Land	466,872	515,095
Buildings and tenant improvements	4,981,637	5,128,150
Development in-process	259,681	172,706
Land held for development	131,474	99,163
Total real estate assets	5,839,664	5,915,114
Less-accumulated depreciation	(1,418,379)	(1,388,566)
Net real estate assets	4,421,285	4,526,548
Real estate and other assets, net, held for sale	11,360	20,790
Cash and cash equivalents	109,322	9,505
Restricted cash	79,922	5,237
Accounts receivable	27,488	23,370
Mortgages and notes receivable	1,341	1,501
Accrued straight-line rents receivable	259,381	234,652
Investments in and advances to unconsolidated affiliates	27,104	26,298
Deferred leasing costs, net of accumulated amortization of $151,698 and $146,125, respectively	209,329	231,347
Prepaid expenses and other assets, net of accumulated depreciation of $21,154 and $20,017, respectively	62,885	58,996
Total Assets	5,209,417	5,138,244
Liabilities, Noncontrolling Interests in the Operating Partnership and Equity/Liabilities, Redeemable Operating Partnership Units and Capital:
Mortgages and notes payable, net	2,470,021	2,543,710
Accounts payable, accrued expenses and other liabilities	268,727	286,911
Total Liabilities	2,738,748	2,830,621
Commitments and contingencies
Redeemable Operating Partnership Units:
Redeemable Operating Partnership Units, Common Units, 2,838,725 and 2,723,703 outstanding, respectively	112,499	133,216
Series A Preferred Units (liquidation preference $1,000 per unit), 28,826 and 28,859 units issued and outstanding, respectively	28,826	28,859
Total Redeemable Operating Partnership Units	141,325	162,075
Equity/Capital:
General partner Common Units, 1,063,515 and 1,060,709 outstanding, respectively	23,087	21,240
Limited partner Common Units, 102,449,222 and 102,286,528 outstanding, respectively	2,285,673	2,102,769
Accumulated other comprehensive loss	(1,462)	(471)
Noncontrolling interests in consolidated affiliates	22,046	22,010
Total Equity/Capital:	2,329,344	2,145,548
Total Liabilities, Noncontrolling Interests in the Operating Partnership and Equity/Total Liabilities, Redeemable Operating Partnership Units and Capital	$ 5,209,417	$ 5,138,244

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Assets:
Deferred leasing costs, accumulated amortization	$ 151,698	$ 146,125
Prepaid expenses and other assets, accumulated amortization	$ 21,154	$ 20,017
Equity/Capital:
Preferred Stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred Stock, authorized shares (in shares)	50,000,000	50,000,000
Preferred Stock, liquidation preference (in dollars per share)	$ 1,000	$ 1,000
Preferred Stock, shares issued (in shares)	28,826	28,859
Preferred Stock, shares outstanding (in shares)	28,826	28,859
Common Stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common Stock, authorized shares (in shares)	200,000,000	200,000,000
Common Stock, shares issued (in shares)	103,921,546	103,756,046
Common Stock, shares outstanding (in shares)	103,921,546	103,756,046
Highwoods Realty Limited Partnership [Member]
Assets:
Deferred leasing costs, accumulated amortization	$ 151,698	$ 146,125
Prepaid expenses and other assets, accumulated amortization	$ 21,154	$ 20,017
Redeemable Operating Partnership Units:
Redeemable Common Units, outstanding (in shares)	2,838,725	2,723,703
Preferred Units liquidation preference (in dollars per share)	$ 1,000	$ 1,000
Series A Preferred Units, issued (in shares)	28,826	28,859
Series A Preferred Units, outstanding (in shares)	28,826	28,859
Common Units:
General partners' capital account, units outstanding (in shares)	1,063,515	1,060,709
Limited partners' capital account, units outstanding (in shares)	102,449,222	102,286,528

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Rental and other revenues	$ 736,900	$ 735,979	$ 720,035
Operating expenses:
Rental property and other expenses	231,825	248,511	242,415
Depreciation and amortization	241,585	254,504	229,955
Impairments of real estate assets	1,778	5,849	423
General and administrative	41,031	44,067	40,006
Total operating expenses	516,219	552,931	512,799
Interest expense	80,962	81,648	71,422
Other income/(loss)	(1,707)	(2,510)	1,940
Gains on disposition of property	215,897	39,517	37,638
Equity in earnings of unconsolidated affiliates	4,005	3,276	2,238
Net income	357,914	141,683	177,630
Net (income) attributable to noncontrolling interests in the Operating Partnership	(9,338)	(3,551)	(4,588)
Net (income) attributable to noncontrolling interests in consolidated affiliates	(1,174)	(1,214)	(1,207)
Dividends on Preferred Stock	(2,488)	(2,488)	(2,492)
Net income available for common stockholders	$ 344,914	$ 134,430	$ 169,343
Earnings per Common Share - basic:
Net income available for common stockholders (in dollars per share)	$ 3.32	$ 1.30	$ 1.64
Weighted average Common Shares outstanding - basic (in shares)	103,876	103,692	103,439
Earnings per Common Share - diluted:
Net income available for common stockholders (in dollars per share)	$ 3.32	$ 1.30	$ 1.64
Weighted average Common Shares outstanding - diluted (in shares)	106,714	106,445	106,268
Highwoods Realty Limited Partnership [Member]
Rental and other revenues	$ 736,900	$ 735,979	$ 720,035
Operating expenses:
Rental property and other expenses	231,825	248,511	242,415
Depreciation and amortization	241,585	254,504	229,955
Impairments of real estate assets	1,778	5,849	423
General and administrative	41,031	44,067	40,006
Total operating expenses	516,219	552,931	512,799
Interest expense	80,962	81,648	71,422
Other income/(loss)	(1,707)	(2,510)	1,940
Gains on disposition of property	215,897	39,517	37,638
Equity in earnings of unconsolidated affiliates	4,005	3,276	2,238
Net income	357,914	141,683	177,630
Net (income) attributable to noncontrolling interests in consolidated affiliates	(1,174)	(1,214)	(1,207)
Distributions on Preferred Units	(2,488)	(2,488)	(2,492)
Net income available for common unitholders	$ 354,252	$ 137,981	$ 173,931
Earnings per Common Unit - basic:
Net income available for common unitholders (in dollars per share)	$ 3.33	$ 1.30	$ 1.64
Weighted average Common Units outstanding - basic (in shares)	106,297	106,014	105,826
Earnings per Common Unit - diluted:
Net income available for common unitholders (in dollars per share)	$ 3.33	$ 1.30	$ 1.64
Weighted average Common Units outstanding - diluted (in shares)	106,305	106,036	105,859

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Comprehensive income:
Net income	$ 357,914	$ 141,683	$ 177,630
Other comprehensive income/(loss):
Unrealized gains/(losses) on cash flow hedges	(1,238)	(9,134)	4,161
Amortization of cash flow hedges	247	(1,250)	(2,086)
Total other comprehensive income/(loss)	(991)	(10,384)	2,075
Total comprehensive income	356,923	131,299	179,705
Less-comprehensive (income) attributable to noncontrolling interests	(10,512)	(4,765)	(5,795)
Comprehensive income attributable to common stockholders/unitholders	346,411	126,534	173,910
Highwoods Realty Limited Partnership [Member]
Comprehensive income:
Net income	357,914	141,683	177,630
Other comprehensive income/(loss):
Unrealized gains/(losses) on cash flow hedges	(1,238)	(9,134)	4,161
Amortization of cash flow hedges	247	(1,250)	(2,086)
Total other comprehensive income/(loss)	(991)	(10,384)	2,075
Total comprehensive income	356,923	131,299	179,705
Less-comprehensive (income) attributable to noncontrolling interests	(1,174)	(1,214)	(1,207)
Comprehensive income attributable to common stockholders/unitholders	$ 355,749	$ 130,085	$ 178,498

Consolidated Statements of Equi

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, 2017			103,266,875
Balance at Dec. 31, 2017	$ 2,237,234	$ 2,208,342	$ 1,033	$ 28,892	$ 21,830	$ 2,161,258	$ 2,929,399	$ 7,838	$ 7,838	$ 17,416	$ 17,416	$ (747,344)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuances of Common Units, net of issuance costs and tax withholdings		1,865			19	1,846			0		0
Distributions on Common Units		(195,712)			(1,957)	(193,755)			0		0
Distributions on Preferred Units		(2,492)			(25)	(2,467)			0		0
Issuances of Common Stock - Shares			33,652
Issuances of Common Stock, net of issuance costs and tax withholdings	1,865		$ 0	0			1,865	0		0		0
Conversions of Common Units to Common Stock - Shares			90,001
Conversions of Common Units to Common Stock	4,043		$ 0	0			4,043	0		0		0
Dividends on Common Stock	(191,302)		0	0			0	0		0		(191,302)
Dividends on Preferred Stock	(2,492)		0	0			0	0		0		(2,492)
Adjustment of noncontrolling interests in the Operating Partnership to fair value	33,427		0	0			33,427	0		0		0
Distributions to noncontrolling interests in consolidated affiliates	(1,047)	(1,047)	$ 0	0	0	0	0	0	0	(1,047)	(1,047)	0
Issuances of restricted stock - Shares			172,440
Issuances of restricted stock	0		$ 0	0			0	0		0		0
Redemptions/repurchases of Preferred Stock	(15)		$ 0	(15)			0	0		0		0
Share-based compensation expense, net of forfeitures - Shares			(5,903)
Share-based compensation expense, net of forfeitures	7,466	7,466	$ 3	0	75	7,391	7,463	0	0	0	0	0
Adjustment of Redeemable Common Units to fair value and contributions/distributions from/to the General Partner		37,292			372	36,920			0		0
Net (income) attributable to noncontrolling interests in the Operating Partnership	(4,588)		0	0			0	0		0		(4,588)
Net (income) attributable to noncontrolling interests in consolidated affiliates	0	0	0	0	(12)	(1,195)	0	0	0	1,207	1,207	(1,207)
Comprehensive income:
Net income	177,630	177,630	0	0	1,776	175,854	0	0	0	0	0	177,630
Other comprehensive income/(loss)	2,075	2,075	$ 0	0	0	0	0	2,075	2,075	0	0	0
Total comprehensive income	179,705	179,705
Balance (in shares) at Dec. 31, 2018			103,557,065
Balance at Dec. 31, 2018	2,264,296	2,235,419	$ 1,036	28,877	22,078	2,185,852	2,976,197	9,913	9,913	17,576	17,576	(769,303)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuances of Common Units, net of issuance costs and tax withholdings		298			3	295			0		0
Distributions on Common Units		(201,347)			(2,013)	(199,334)			0		0
Distributions on Preferred Units		(2,488)			(25)	(2,463)			0		0
Issuances of Common Stock - Shares			(143)
Issuances of Common Stock, net of issuance costs and tax withholdings	298		$ 0	0			298	0		0		0
Conversions of Common Units to Common Stock - Shares			15,000
Conversions of Common Units to Common Stock	663		$ 0	0			663	0		0		0
Dividends on Common Stock	(196,935)		0	0			0	0		0		(196,935)
Dividends on Preferred Stock	(2,488)		0	0			0	0		0		(2,488)
Adjustment of noncontrolling interests in the Operating Partnership to fair value	(29,557)		0	0			(29,557)	0		0		0
Distributions to noncontrolling interests in consolidated affiliates	(1,767)	(1,767)	0	0	0	0	0	0	0	(1,767)	(1,767)	0
Contributions from noncontrolling interests in consolidated affiliates	4,987	4,987	$ 0	0	0	0	0	0	0	4,987	4,987	0
Issuances of restricted stock - Shares			190,934
Issuances of restricted stock	0		$ 0	0			0	0		0		0
Redemptions/repurchases of Preferred Stock	(18)		$ 0	(18)			0	0		0		0
Share-based compensation expense, net of forfeitures - Shares			(6,810)
Share-based compensation expense, net of forfeitures	7,180	7,180	$ 2	0	72	7,108	7,178	0	0	0	0	0
Adjustment of Redeemable Common Units to fair value and contributions/distributions from/to the General Partner		(28,033)			(280)	(27,753)			0		0
Net (income) attributable to noncontrolling interests in the Operating Partnership	(3,551)		0	0			0	0		0		(3,551)
Net (income) attributable to noncontrolling interests in consolidated affiliates	0	0	0	0	(12)	(1,202)	0	0	0	1,214	1,214	(1,214)
Comprehensive income:
Net income	141,683	141,683	0	0	1,417	140,266	0	0	0	0	0	141,683
Other comprehensive income/(loss)	(10,384)	(10,384)	$ 0	0	0	0	0	(10,384)	(10,384)	0	0	0
Total comprehensive income	$ 131,299	131,299
Balance (in shares) at Dec. 31, 2019	103,756,046		103,756,046
Balance at Dec. 31, 2019	$ 2,174,407	2,145,548	$ 1,038	28,859	21,240	2,102,769	2,954,779	(471)	(471)	22,010	22,010	(831,808)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuances of Common Units, net of issuance costs and tax withholdings		8,359			84	8,275			0		0
Distributions on Common Units		(204,002)			(2,040)	(201,962)			0		0
Distributions on Preferred Units		(2,488)			(25)	(2,463)			0		0
Issuances of Common Stock - Shares			19,377
Issuances of Common Stock, net of issuance costs and tax withholdings	2,196		$ 0	0			2,196	0		0		0
Conversions of Common Units to Common Stock - Shares			3,570
Conversions of Common Units to Common Stock	145		$ 0	0			145	0		0		0
Dividends on Common Stock	(199,331)		0	0			0	0		0		(199,331)
Dividends on Preferred Stock	(2,488)		0	0			0	0		0		(2,488)
Adjustment of noncontrolling interests in the Operating Partnership to fair value	30,617		0	0			30,617	0		0		0
Distributions to noncontrolling interests in consolidated affiliates	(1,138)	(1,138)	$ 0	0	0	0	0	0	0	(1,138)	(1,138)	0
Issuances of restricted stock - Shares			149,304
Issuances of restricted stock	0		$ 0	0			0	0		0		0
Redemptions/repurchases of Preferred Stock	(33)		$ 0	(33)			0	0		0		0
Share-based compensation expense, net of forfeitures - Shares			(6,751)
Share-based compensation expense, net of forfeitures	6,210	6,210	$ 1	0	62	6,148	6,209	0	0	0	0	0
Adjustment of Redeemable Common Units to fair value and contributions/distributions from/to the General Partner		19,932			199	19,733			0		0
Net (income) attributable to noncontrolling interests in the Operating Partnership	(9,338)		0	0			0	0		0		(9,338)
Net (income) attributable to noncontrolling interests in consolidated affiliates	0	0	0	0	(12)	(1,162)	0	0	0	1,174	1,174	(1,174)
Comprehensive income:
Net income	357,914	357,914	0	0	3,579	354,335	0	0	0	0	0	357,914
Other comprehensive income/(loss)	(991)	(991)	$ 0	0	0	0	0	(991)	(991)	0	0	0
Total comprehensive income	$ 356,923	356,923
Balance (in shares) at Dec. 31, 2020	103,921,546		103,921,546
Balance at Dec. 31, 2020	$ 2,358,170	$ 2,329,344	$ 1,039	$ 28,826	$ 23,087	$ 2,285,673	$ 2,993,946	$ (1,462)	$ (1,462)	$ 22,046	$ 22,046	$ (686,225)

Consolidated Statements of Eq_2

Consolidated Statements of Equity (Parentheticals) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Series A Cumulative Redeemable Preferred Shares [Member]
Dividends on Preferred Stock (per share)/Distributions on Preferred Units (per unit)	$ 86.25	$ 86.25	$ 86.25
Highwoods Properties, Inc. [Member]
Dividends on Common Stock (per share)	1.92	1.90	1.85
Highwoods Properties, Inc. [Member] | Series A Cumulative Redeemable Preferred Shares [Member]
Dividends on Preferred Stock (per share)/Distributions on Preferred Units (per unit)	86.25	86.25	86.25
Highwoods Realty Limited Partnership [Member]
Distributions on Common Units (per unit)	1.92	1.90	1.85
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

Consolidated Statements of Cash

Consolidated Statements of Cash Flows $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Operating activities:
Net income	$ 357,914	$ 141,683	$ 177,630
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	241,585	254,504	229,955
Amortization of lease incentives and acquisition-related intangible assets and liabilities	(2,537)	(505)	(1,943)
Share-based compensation expense	6,210	7,180	7,466
Credit losses on operating lease receivables	5,458	9,861	1,212
Write-off of mortgages and notes receivable	0	4,087	0
Accrued interest on mortgages and notes receivable	(118)	(184)	(451)
Amortization of debt issuance costs	3,092	2,970	2,857
Amortization of cash flow hedges	247	(1,250)	(2,086)
Amortization of mortgages and notes payable fair value adjustments	1,681	1,619	1,449
Impairments of real estate assets	1,778	5,849	423
Losses on debt extinguishment	3,674	640	0
Net gains on disposition of property	(215,897)	(39,517)	(37,638)
Equity in earnings of unconsolidated affiliates	(4,005)	(3,276)	(2,238)
Distributions of earnings from unconsolidated affiliates	1,533	1,149	2,104
Settlement of cash flow hedges	0	(11,749)	7,216
Changes in operating assets and liabilities:
Accounts receivable	437	(3,271)	1,759
Prepaid expenses and other assets	(365)	1,610	1,217
Accrued straight-line rents receivable	(36,576)	(29,828)	(23,203)
Accounts payable, accrued expenses and other liabilities	(5,951)	24,225	(7,101)
Net cash provided by operating activities	358,160	365,797	358,628
Investing activities:
Investments in acquired real estate and related intangible assets, net of cash acquired	(2,363)	(424,222)	(50,649)
Investments in development in-process	(160,612)	(116,111)	(150,310)
Investments in tenant improvements and deferred leasing costs	(137,997)	(138,754)	(121,534)
Investments in building improvements	(62,154)	(53,826)	(68,256)
Net proceeds from disposition of real estate assets	484,311	133,326	88,813
Distributions of capital from unconsolidated affiliates	72	7,833	105
Investments in mortgages and notes receivable	(32)	0	0
Repayments of mortgages and notes receivable	310	295	1,312
Investments in and advances to unconsolidated affiliates	0	(9,977)	0
Changes in other investing activities	(10,853)	(5,971)	(6,230)
Net cash provided by/(used in) investing activities	110,682	(607,407)	(306,749)
Financing activities:
Dividends on Common Stock	(199,331)	(196,935)	(191,302)
Redemptions/repurchases of Preferred Stock	(33)	(18)	(15)
Dividends on Preferred Stock	(2,488)	(2,488)	(2,492)
Distributions to noncontrolling interests in the Operating Partnership	(5,456)	(5,189)	(5,167)
Distributions to noncontrolling interests in consolidated affiliates	(1,138)	(1,767)	(1,047)
Proceeds from the issuance of Common Stock	3,571	2,086	3,637
Costs paid for the issuance of Common Stock	(215)	0	(95)
Repurchase of shares related to tax withholdings	(1,160)	(1,788)	(1,677)
Borrowings on revolving credit facility	129,000	604,600	438,900
Repayments of revolving credit facility	(350,000)	(565,600)	(501,900)
Borrowings on mortgages and notes payable	398,364	747,990	345,863
Repayments of mortgages and notes payable	(251,952)	(326,876)	(211,803)
Payments of debt extinguishment costs	(3,193)	0	0
Changes in debt issuance costs and other financing activities	(10,309)	(7,806)	(2,971)
Net cash provided by/(used in) financing activities	(294,340)	246,209	(130,069)
Net increase/(decrease) in cash and cash equivalents and restricted cash	174,502	4,599	(78,190)
Cash and cash equivalents and restricted cash at beginning of the period	14,742	10,143	88,333
Cash and cash equivalents and restricted cash at end of the period	189,244	14,742	10,143
Reconciliation of cash and cash equivalents and restricted cash:
Cash and cash equivalents at end of the period	109,322	9,505	3,769
Restricted cash at end of the period	79,922	5,237	6,374
Supplemental disclosure of cash flow information:
Cash paid for interest, net of amounts capitalized	72,350	72,014	67,235
Supplemental disclosure of non-cash investing and financing activities:
Unrealized gains on cash flow hedges	(1,238)	(9,134)	4,161
Conversions of Common Units to Common Stock	145	663	4,043
Changes in accrued capital expenditures (1)	(1,913)	5,625	(165)
Write-off of fully depreciated real estate assets	46,656	85,727	76,558
Write-off of fully amortized leasing costs	25,618	45,042	34,191
Write-off of fully amortized debt issuance costs	1,438	1,791	2,733
Adjustment of noncontrolling interests in the Operating Partnership to fair value	(30,617)	29,557	(33,427)
Issuances of Common Units to acquire real estate assets	6,163	0	0
Contingent consideration in connection with the acquisition of land	0	1,200	0
Contributions from noncontrolling interests in consolidated affiliates	0	4,987	0
Initial recognition of lease liabilities related to right of use assets	0	35,349	0
Accrued capital expenditures included in accounts payable, accrued expenses and other liabilities	66,000	67,900	62,200
Highwoods Realty Limited Partnership [Member]
Operating activities:
Net income	357,914	141,683	177,630
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	241,585	254,504	229,955
Amortization of lease incentives and acquisition-related intangible assets and liabilities	(2,537)	(505)	(1,943)
Share-based compensation expense	6,210	7,180	7,466
Credit losses on operating lease receivables	5,458	9,861	1,212
Write-off of mortgages and notes receivable	0	4,087	0
Accrued interest on mortgages and notes receivable	(118)	(184)	(451)
Amortization of debt issuance costs	3,092	2,970	2,857
Amortization of cash flow hedges	247	(1,250)	(2,086)
Amortization of mortgages and notes payable fair value adjustments	1,681	1,619	1,449
Impairments of real estate assets	1,778	5,849	423
Losses on debt extinguishment	3,674	640	0
Net gains on disposition of property	(215,897)	(39,517)	(37,638)
Equity in earnings of unconsolidated affiliates	(4,005)	(3,276)	(2,238)
Distributions of earnings from unconsolidated affiliates	1,533	1,149	2,104
Settlement of cash flow hedges	0	(11,749)	7,216
Changes in operating assets and liabilities:
Accounts receivable	437	(3,271)	1,759
Prepaid expenses and other assets	(365)	1,610	1,217
Accrued straight-line rents receivable	(36,576)	(29,828)	(23,203)
Accounts payable, accrued expenses and other liabilities	(5,951)	24,225	(7,101)
Net cash provided by operating activities	358,160	365,797	358,628
Investing activities:
Investments in acquired real estate and related intangible assets, net of cash acquired	(2,363)	(424,222)	(50,649)
Investments in development in-process	(160,612)	(116,111)	(150,310)
Investments in tenant improvements and deferred leasing costs	(137,997)	(138,754)	(121,534)
Investments in building improvements	(62,154)	(53,826)	(68,256)
Net proceeds from disposition of real estate assets	484,311	133,326	88,813
Distributions of capital from unconsolidated affiliates	72	7,833	105
Investments in mortgages and notes receivable	(32)	0	0
Repayments of mortgages and notes receivable	310	295	1,312
Investments in and advances to unconsolidated affiliates	0	(9,977)	0
Changes in other investing activities	(10,853)	(5,971)	(6,230)
Net cash provided by/(used in) investing activities	110,682	(607,407)	(306,749)
Financing activities:
Distributions on Common Units	(204,002)	(201,347)	(195,712)
Redemptions/repurchases of Preferred Units	(33)	(18)	(15)
Distributions on Preferred Units	(2,488)	(2,488)	(2,492)
Distributions to noncontrolling interests in consolidated affiliates	(1,138)	(1,767)	(1,047)
Proceeds from the issuance of Common Units	3,571	2,086	3,637
Costs paid for the issuance of Common Units	(215)	0	(95)
Repurchase of units related to tax withholdings	(1,160)	(1,788)	(1,677)
Borrowings on revolving credit facility	129,000	604,600	438,900
Repayments of revolving credit facility	(350,000)	(565,600)	(501,900)
Borrowings on mortgages and notes payable	398,364	747,990	345,863
Repayments of mortgages and notes payable	(251,952)	(326,876)	(211,803)
Payments of debt extinguishment costs	(3,193)	0	0
Changes in debt issuance costs and other financing activities	(11,094)	(8,583)	(3,728)
Net cash provided by/(used in) financing activities	(294,340)	246,209	(130,069)
Net increase/(decrease) in cash and cash equivalents and restricted cash	174,502	4,599	(78,190)
Cash and cash equivalents and restricted cash at beginning of the period	14,742	10,143	88,333
Cash and cash equivalents and restricted cash at end of the period	189,244	14,742	10,143
Reconciliation of cash and cash equivalents and restricted cash:
Cash and cash equivalents at end of the period	109,322	9,505	3,769
Restricted cash at end of the period	79,922	5,237	6,374
Supplemental disclosure of cash flow information:
Cash paid for interest, net of amounts capitalized	72,350	72,014	67,235
Supplemental disclosure of non-cash investing and financing activities:
Unrealized gains on cash flow hedges	(1,238)	(9,134)	4,161
Changes in accrued capital expenditures (1)	(1,913)	5,625	(165)
Write-off of fully depreciated real estate assets	46,656	85,727	76,558
Write-off of fully amortized leasing costs	25,618	45,042	34,191
Write-off of fully amortized debt issuance costs	1,438	1,791	2,733
Adjustment of Redeemable Common Units to fair value	(26,880)	27,256	(38,049)
Issuances of Common Units to acquire real estate assets	6,163	0	0
Contingent consideration in connection with the acquisition of land	0	1,200	0
Contributions from noncontrolling interests in consolidated affiliates	0	4,987	0
Initial recognition of lease liabilities related to right of use assets	0	35,349	0
Accrued capital expenditures included in accounts payable, accrued expenses and other liabilities	$ 66,000	$ 67,900	$ 62,200

Description of Business and Sig

Description of Business and Significant Accounting Policies	12 Months Ended
	Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business and Significant Accounting Policies	Description of Business and Significant Accounting Policies Description of Business Highwoods Properties, Inc. (the “Company”) is a fully integrated real estate investment trust (“REIT”) that provides leasing, management, development, construction and other customer-related services for its properties and for third parties. The Company conducts its activities through Highwoods Realty Limited Partnership (the “Operating Partnership”). At December 31, 2020, we owned or had an interest in 27.2 million rentable square feet of in-service properties, 1.2 million rentable square feet of office properties under development and approximately 230 acres of development land. The Company is the sole general partner of the Operating Partnership. At December 31, 2020, the Company owned all of the Preferred Units and 103.5 million, or 97.3%, of the Common Units in the Operating Partnership. Limited partners owned the remaining 2.8 million Common Units. In the event the Company issues shares of Common Stock, the net proceeds of the issuance are contributed to the Operating Partnership in exchange for additional Common Units. Generally, the Operating Partnership is obligated to redeem each Common Unit at the request of the holder thereof for cash equal to the value of one share of Common Stock based on the average of the market price for the 10 trading days immediately preceding the notice date of such redemption, provided that the Company, at its option, may elect to acquire any such Common Units presented for redemption for cash or one share of Common Stock. The Common Units owned by the Company are not redeemable. During 2020, the Company redeemed 3,570 Common Units for a like number of shares of Common Stock and the Operating Partnership issued 118,592 Common Units to acquire real estate assets. Basis of Presentation Our Consolidated Financial Statements are prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”). The Company’s Consolidated Financial Statements include the Operating Partnership, wholly owned subsidiaries and those entities in which the Company has the controlling interest. The Operating Partnership’s Consolidated Financial Statements include wholly owned subsidiaries and those entities in which the Operating Partnership has the controlling interest. We consolidate joint venture investments, such as interests in partnerships and limited liability companies, when we control the major operating and financial policies of the investment through majority ownership, in our capacity as a general partner or managing member or through some other contractual right. At December 31, 2020, three properties owned through a joint venture investment were consolidated. We also consolidate those entities deemed to be variable interest entities in which we are determined to be the primary beneficiary. At December 31, 2020, we have involvement with, and are the primary beneficiary in, an entity that we concluded to be a variable interest entity (see Note 4). In addition, during 2019, we acquired a building using a special purpose entity owned by a qualified intermediary to facilitate a potential Section 1031 reverse exchange under the Internal Revenue Code. We determined that this entity was a variable interest entity of which we were the primary beneficiary and therefore, we consolidated this entity as of December 31, 2019. During 2020, we completed the exchange by acquiring 100% of the special purpose entity. All intercompany transactions and accounts have been eliminated. Certain amounts within the Consolidated Statements of Income for the year ended December 31, 2018 were removed and/or combined to conform to the current year presentation. Use of Estimates The preparation of consolidated financial statements in accordance with GAAP requires us to make estimates and assumptions that affect the amounts reported in our Consolidated Financial Statements and accompanying notes. Actual results could differ from those estimates. Insurance We are primarily self-insured for health care claims for participating employees. We have stop-loss coverage to limit our exposure to significant claims on a per claim and annual aggregate basis. We determine our liabilities for claims, including incurred but not reported losses, based on all relevant information, including actuarial estimates of claim liabilities. At December 31, 2020, 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 three Expenditures directly related to the development and construction of real estate assets are included in net real estate assets and are stated at depreciated cost. Development expenditures include pre-construction costs essential to the development of properties, development and construction costs, interest costs on qualifying assets, real estate taxes, development personnel salaries and related costs and other costs incurred during the period of development. Interest and other carrying costs are capitalized until the building is ready for its intended use, but not later than a year from cessation of major construction activity. We consider a construction project as substantially completed and ready for its intended use upon the completion of tenant improvements. We cease capitalization on the portion that is substantially completed and occupied or held available for occupancy and capitalize only those costs associated with the portion under construction. We record liabilities for the performance of asset retirement activities when the obligation to perform such activities is probable even when uncertainty exists about the timing and/or method of settlement. Upon the acquisition of real estate assets accounted for as asset acquisitions, we assess the fair value of acquired tangible assets such as land, buildings and tenant improvements, intangible assets and liabilities such as above and below market leases, acquired in-place leases and other identifiable intangible assets and assumed liabilities. We allocate fair value on a relative basis based on estimated cash flow projections that utilize discount and/or capitalization rates as well as available market information. The fair value of the tangible assets of an acquired property considers the value of the property as if it were vacant. The above and below market rate portions of leases acquired in connection with property acquisitions are recorded in deferred leasing costs and in accounts payable, accrued expenses and other liabilities, respectively, at fair value and amortized into rental revenue over the remaining term of the respective leases as described below. Fair value is calculated as the present value of the difference between (1) the contractual amounts to be paid pursuant to each in-place lease and (2) our estimate of fair market lease rates for each corresponding in-place lease, using a discount rate that reflects the risks associated with the leases acquired and measured over a period equal to the remaining initial term of the lease for above-market leases and the remaining initial term plus the term of any renewal option that the customer would be economically compelled to exercise for below-market leases. In-place leases acquired are recorded at fair value in deferred leasing costs and amortized to depreciation and amortization expense over the remaining term of the respective lease. The value of in-place leases is based on our evaluation of the specific characteristics of each customer’s lease. Factors considered include estimates of carrying costs during hypothetical expected lease-up periods, current market conditions, the customer’s credit quality and costs to execute similar leases. In estimating carrying costs, we include real estate taxes, insurance and other operating expenses and estimates of lost rentals at market rates during the expected lease-up periods, depending on local market conditions. In estimating costs to execute similar leases, we consider tenant improvements, leasing commissions and legal and other related expenses. Real estate and other assets are classified as long-lived assets held for use or as long-lived assets held for sale. Real estate is classified as held for sale when the sale of the asset is probable, has been duly approved by the Company, a legally enforceable contract has been executed and the buyer’s due diligence period, if any, has expired. Impairments of Real Estate Assets and Investments in Unconsolidated Affiliates With respect to assets classified as held for use, we perform an impairment analysis if our evaluation of events or changes in circumstances indicate that the carrying value may not be recoverable, such as a significant decline in occupancy, identification of materially adverse legal or environmental factors, change in our designation of an asset from core to non-core, which may impact the anticipated holding period, or a decline in market value to an amount less than cost. This analysis is generally performed at the property level, except when an asset is part of an interdependent group such as an office park, and consists of determining whether the asset’s carrying amount will be recovered from its undiscounted estimated future operating and residual cash flows. These cash flows are estimated based on a number of assumptions that are subject to economic and market uncertainties including, among others, demand for space, competition for customers, changes in market rental rates, costs to operate each property and expected ownership periods. For properties under development, the cash flows are based on expected service potential of the asset or asset group when development is substantially complete. If the carrying amount of a held for use asset exceeds the sum of its undiscounted future operating and residual cash flows, an impairment loss is recorded for the difference between estimated fair value of the asset and the carrying amount. We generally estimate the fair value of assets held for use by using discounted cash flow analyses. In some instances, appraisal information may be available and is used in addition to a discounted cash flow analysis. As the factors used in generating these cash flows are difficult to predict and are subject to future events that may alter our assumptions, the discounted and/or undiscounted future operating and residual cash flows estimated by us in our impairment analyses or those established by appraisal may not be achieved and we may be required to recognize future impairment losses on properties held for use. We record assets held for sale at the lower of the carrying amount or estimated fair value. Fair value of assets held for sale is equal to the estimated or contracted sales price with a potential buyer, less costs to sell. The impairment loss is the amount by which the carrying amount exceeds the estimated fair value. We also analyze our investments in unconsolidated affiliates for impairment. This analysis consists of determining whether an expected loss in market value of an investment is other than temporary by evaluating the length of time and the extent to which the market value has been less than cost, the financial condition and near-term prospects of the investment, and our intent and ability to retain our investment for a period of time sufficient to allow for any anticipated recovery in market value. As the factors used in this analysis are difficult to predict and are subject to future events that may alter our assumptions, we may be required to recognize future impairment losses on our investments in unconsolidated affiliates. Sales of Real Estate For sales of real estate where we have collected the consideration to which we are entitled in exchange for transferring the real estate, the related assets and liabilities are removed from the balance sheet and the resultant gain or loss is recorded in the period the transaction closes. Any post-sale involvement is accounted for as separate performance obligations and when the separate performance obligations are satisfied, the sales price allocated to each is recognized. Leases See Note 2 for significant accounting policies and related disclosures with respect to revenue recognition for our leases, accounting for initial direct costs and lease incentive costs and credit losses on operating lease receivables as a result of the lease standard adoption effective January 1, 2019. Discontinued Operations Properties that are sold or classified as held for sale are classified as discontinued operations provided that the disposal represents a strategic shift that has (or will have) a major effect on our operations and financial results. Interest expense is included in discontinued operations if a related loan securing the sold property is to be paid off or assumed by the buyer in connection with the sale. Investments in Unconsolidated Affiliates We account for our joint venture investments using the equity method of accounting when our interests represent a general partnership interest but substantive participating rights or substantive kick out rights have been granted to the limited partners or when our interests do not represent a general partnership interest and we do not control the major operating and financial policies of the investment. These investments are initially recorded at cost as investments in unconsolidated affiliates and are subsequently adjusted for our share of earnings and cash contributions and distributions. To the extent our cost basis at formation of the joint venture is different than the basis reflected at the joint venture level, the basis difference is amortized over the life of the related assets and included in our share of equity in earnings of unconsolidated affiliates. Cash Equivalents We consider highly liquid investments with an original maturity of three months or less when purchased to be cash equivalents. Restricted Cash Restricted cash represents cash deposits that are legally restricted or held by third parties on our behalf, such as construction-related escrows, property disposition proceeds set aside and designated or intended to fund future tax-deferred exchanges of qualifying real estate investments and escrows and reserves for debt service, real estate taxes and property insurance established pursuant to certain mortgage financing arrangements. Redeemable Common Units and Preferred Units Limited partners holding Common Units other than the Company (“Redeemable Common Units”) have the right to put any and all of the Common Units to the Operating Partnership and the Company has the right to put any and all of the Preferred Units to the Operating Partnership in exchange for their liquidation preference plus accrued and unpaid distributions in the event of a corresponding redemption by the Company of the underlying Preferred Stock. Consequently, these Redeemable Common Units and Preferred Units are classified outside of permanent partners’ capital in the Operating Partnership’s accompanying balance sheets. The recorded value of the Redeemable Common Units is based on fair value at the balance sheet date as measured by the closing price of Common Stock on that date multiplied by the total number of Redeemable Common Units outstanding. The recorded value of the Preferred Units is based on their redemption value. Income Taxes The Company has elected and expects to continue to qualify as a REIT under Sections 856 through 860 of the Internal Revenue Code of 1986, as amended (the “Code”). A corporate REIT is a legal entity that holds real estate assets and, through the payment of dividends to stockholders, is generally permitted to reduce or avoid the payment of federal and state income taxes at the corporate level. To maintain qualification as a REIT, the Company is required to pay dividends to its stockholders equal to at least 90.0% of its annual REIT taxable income, excluding net capital gains. The partnership agreement requires the Operating Partnership to pay economically equivalent distributions on outstanding Common Units at the same time that the Company pays dividends on its outstanding Common Stock. Other than income taxes related to its taxable REIT subsidiary, the Operating Partnership does not reflect any federal income taxes in its financial statements, since as a partnership the taxable effects of its operations are attributed to its partners. The Operating Partnership does record state income tax for states that tax partnership income directly. We conduct certain business activities through a taxable REIT subsidiary, as permitted under the Code. The taxable REIT subsidiary is subject to federal, state and local income taxes on its taxable income. We record provisions for income taxes based on its income recognized for financial statement purposes, including the effects of differences between such income and the amount recognized for tax purposes. Concentration of Credit Risk At December 31, 2020, properties that we wholly own were leased to 1,378 customers. The geographic locations that comprise greater than 10.0% of our rental and other revenues are Atlanta, Nashville, Raleigh and Tampa. Our customers engage in a wide variety of businesses. No single customer generated more than 5% of our consolidated revenues during 2020. We maintain our cash and cash equivalents and our restricted cash at financial or other intermediary institutions. The combined account balances at each institution may exceed FDIC insurance coverage and, as a result, there is a concentration of credit risk related to amounts on deposit in excess of FDIC insurance coverage. Additionally, from time to time in connection with tax-deferred 1031 transactions, our restricted cash balances may be commingled with other funds being held by any such intermediary institution, which would subject our balance to the credit risk of the institution. Derivative Financial Instruments We borrow funds at a combination of fixed and variable rates. Borrowings under our revolving credit facility and bank term loans bear interest at variable rates. Our long-term debt, which consists of secured and unsecured long-term financings, typically bears interest at fixed rates. Our interest rate risk management objectives are to limit generally the impact of interest rate changes on earnings and cash flows and lower our overall borrowing costs. To achieve these objectives, from time to time, we enter into interest rate hedge contracts such as collars, swaps, caps and treasury lock agreements in order to mitigate our interest rate risk with respect to existing and prospective debt instruments. We generally do not hold or issue these derivative contracts for trading or speculative purposes. The interest rate on all of our variable rate debt is generally adjusted at one three Interest rate swaps involve the receipt of variable rate amounts from a counterparty in exchange for making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount. Changes in the fair value of derivatives designated and that qualify as cash flow hedges are recorded in accumulated other comprehensive income/(loss) and are subsequently reclassified into interest expense as interest payments are made on our debt. We account for terminated derivative instruments by recognizing the related accumulated other comprehensive income/(loss) balance in current earnings, unless the hedged forecasted transaction continues as originally planned, in which case we continue to amortize the accumulated other comprehensive income/(loss) into earnings over the originally designated hedge period. Earnings Per Share and Per Unit Basic earnings per share of the Company is computed by dividing net income available for common stockholders by the weighted Common Shares outstanding - basic. Diluted earnings per share is computed by dividing net income available for common stockholders (inclusive of noncontrolling interests in the Operating Partnership) by the weighted Common Shares outstanding - basic plus the dilutive effect of options, warrants and convertible securities outstanding, including Common Units, using the treasury stock method. Weighted Common Shares outstanding - basic includes all unvested restricted stock where dividends received on such restricted stock are non-forfeitable. Basic earnings per unit of the Operating Partnership is computed by dividing net income available for common unitholders by the weighted Common Units outstanding - basic. Diluted earnings per unit is computed by dividing net income available for common unitholders by the weighted Common Units outstanding - basic plus the dilutive effect of options and warrants, using the treasury stock method. Weighted Common Units outstanding - basic includes all of the Company’s unvested restricted stock where distributions received on such restricted stock are non-forfeitable. Recently Issued Accounting Standards The Financial Accounting Standards Board (“FASB”) issued an accounting standards update (“ASU”) that changes certain disclosure requirements for fair value measurements. We adopted the ASU as of January 1, 2020 with no material effect on our Notes to Consolidated Financial Statements. The FASB issued an ASU that provides temporary optional expedients and exceptions to the guidance on contract modifications and hedge accounting to ease the financial reporting burdens related to the expected market transition from LIBOR and other interbank offered rates to alternative reference rates, such as the Secured Overnight Financing Rate (“SOFR”). Entities can elect not to apply certain modification accounting requirements to contracts affected by reference rate reform, if certain criteria are met. An entity that makes this election would not have to remeasure the contracts at the modification date or reassess a previous accounting determination. Entities can also elect various optional expedients that would allow them to continue applying hedge accounting for hedging relationships affected by reference rate reform, if certain criteria are met. The guidance in this ASU is optional and may be elected over the period March 12, 2020 through December 31, 2022 as reference rate reform activities occur. We will continue to evaluate the impact of this ASU; however, we currently expect to avail ourselves of such optional expedients and exceptions should our modified contracts meet the required criteria. Due to the business disruptions and challenges severely affecting the global economy caused by the COVID-19 pandemic, lessors may provide rent deferrals and other lease concessions to lessees. In April 2020, the FASB staff issued a question and answer document (the “Lease Modification Q&A”) focused on the application of lease accounting guidance to lease concessions provided as a result of the COVID-19 pandemic. Under existing lease guidance, we would have to determine, on a lease by lease basis, if a lease concession was the result of a new arrangement reached with the tenant (treated within the lease modification accounting framework) or if a lease concession was under the enforceable rights and obligations within the existing lease agreement (precluded from applying the lease modification accounting framework). The Lease Modification

Leases

Leases	12 Months Ended
	Dec. 31, 2020
Leases [Abstract]
Leases	Leases On January 1, 2019, we adopted Accounting Standards Codification Topic 842 “Leases” (“ASC 842”), which supersedes Accounting Standards Codification Topic 840 “Leases” (“ASC 840”). Information in this Note 2 with respect to our leases and lease related costs as both lessee and lessor and lease related receivables as lessor is presented under ASC 842 as of and for the years ended December 31, 2020 and 2019 and under ASC 840 for the year ended December 31, 2018. We adopted ASC 842 using the modified retrospective approach whereby the cumulative effect of adoption was recognized on the adoption date and prior periods were not restated. There was no net cumulative effect adjustment to retained earnings as of January 1, 2019 as a result of this adoption. ASC 842 sets out the principles for the recognition, measurement, presentation and disclosure of leases for both lessees and lessors. We operate as both a lessor and a lessee. As a lessor, we are required under ASC 842 to account for leases using an approach that is substantially equivalent to ASC 840’s guidance for operating leases and other leases such as sales-type leases and direct financing leases. In addition, ASC 842 requires lessors to capitalize and amortize only incremental direct leasing costs. As a lessee, we are required under the new standard to apply a dual approach, classifying leases, such as ground leases, as either finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase. This classification determines whether lease expense is recognized based on an effective interest method or on a straight-line basis over the term of the lease. ASC 842 also requires lessees to record a right of use asset and a lease liability for all leases with a term of greater than a year regardless of their classification. We have also elected the practical expedient not to recognize right of use assets and lease liabilities for leases with a term of a year or less. On adoption of the standard, we elected the package of practical expedients provided for in ASC 842, including: • No reassessment of whether any expired or existing contracts were or contained leases; • No reassessment of the lease classification for any expired or existing leases; and • No reassessment of initial direct costs for any existing leases. The package of practical expedients was made as a single election and was consistently applied to all existing leases as of January 1, 2019. We also elected the practical expedient provided to lessors in a subsequent amendment to ASC 842 that removed the requirement to separate lease and nonlease components, provided certain conditions were met. Information as Lessor Under ASC 842 We generally lease our office properties to lessees in exchange for fixed monthly payments that cover rent, property taxes, insurance and certain cost recoveries, primarily common area maintenance (“CAM”). Office properties owned by us that are under lease are primarily located in Atlanta, Charlotte, Nashville, Orlando, Pittsburgh, Raleigh, Richmond and Tampa and are leased to a wide variety of lessees across many industries. Our leases are operating leases and mostly range from three Some of our leases are subject to annual changes in the Consumer Price Index (“CPI”). Although increases in the CPI are not estimated as part of our measurement of straight-line rental revenue, to the extent that actual CPI is greater or less than the CPI at lease commencement, the amount of straight-line rent recognized in a given year is affected accordingly. Some of our leases have termination options and/or extension options. Termination options allow the customer to terminate the lease prior to the end of the lease term under certain circumstances. Termination options generally become effective half way or further into the original lease term and require advance notification from the customer and payment of a termination fee that reimburses us for a portion of the remaining rent under the original lease term and the undepreciated lease inception costs such as commissions, tenant improvements and lease incentives. Termination fee income is recognized on a straight-line basis from the date of the executed termination agreement through lease expiration when the amount of the fee is determinable and collectability of the fee is reasonably assured. Our extension options generally require a re-negotiation with the customer at market rates. Initial direct costs, primarily commissions, related to the leasing of our office properties are included in deferred leasing costs and are stated at amortized cost. Such expenditures are part of the investment necessary to execute leases and, therefore, are classified as investment activities in the statement of cash flows. All leasing commissions paid to third parties and our in-house personnel for new leases or lease renewals are capitalized. Capitalized leasing costs are amortized on a straight-line basis over the initial fixed terms of the respective leases. All other costs to negotiate or arrange a lease are expensed as incurred. Lease incentive costs, which are payments made to or on behalf of a customer as an incentive to sign a lease, are capitalized in deferred leasing costs and amortized on a straight-line basis over the respective lease terms as a reduction of rental revenues. Lease related receivables, which include accounts receivable and accrued straight-line rents receivable, are reduced for credit losses. Such amounts are recognized as a reduction to rental and other revenues. We regularly evaluate the collectability of our lease related receivables. Our evaluation of collectability primarily consists of reviewing 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. We recognized rental and other revenues related to operating lease payments of $726.0 million and $723.1 million, of which variable lease payments were $56.0 million and $65.4 million, during the years ended December 31, 2020 and 2019, respectively. The following table sets forth the undiscounted cash flows for future minimum base rents to be received from customers for leases in effect at December 31, 2020 for the properties that we wholly own: 2021 $ 623,888 2022 619,530 2023 570,417 2024 513,483 2025 432,272 Thereafter 2,049,545 $ 4,809,135 Information as Lessor Under ASC 840 Minimum contractual rents from leases are recognized on a straight-line basis over the terms of the respective leases. This means that, with respect to a particular lease, actual amounts billed in accordance with the lease during any given period may be higher or lower than the amount of rental revenue recognized for the period. Straight-line rental revenue is commenced when the customer assumes control of the leased premises. Accrued straight-line rents receivable represents the amount by which straight-line rental revenue exceeds rents currently billed in accordance with lease agreements. Contingent rental revenue, such as percentage rent, is accrued when the contingency is removed. Termination fee income is recognized at the later of when the customer has vacated the space or the lease has expired and a fully executed lease termination agreement has been delivered, the amount of the fee is determinable and collectability of the fee is reasonably assured. Cost recovery income is determined on a calendar year and a lease-by-lease basis. The most common types of cost recovery income in our leases are CAM and real estate taxes, for which a customer typically pays its pro-rata share of operating and administrative expenses and real estate taxes in excess of the costs incurred during a contractually specified base year. The computation of cost recovery income is complex and involves numerous judgments, including the interpretation of lease provisions. Leases are not uniform in dealing with such cost recovery income and there are many variations in the computation. Many customers make monthly fixed payments of CAM, real estate taxes and other cost reimbursement items. We accrue income related to these payments each month. We make quarterly accrual adjustments, positive or negative, to cost recovery income to adjust the recorded amounts to our best estimate of the final annual amounts to be billed and collected. After the end of the calendar year, we compute each customer’s final cost recovery income and, after considering amounts paid by the customer during the year, issue a bill or credit for the appropriate amount to the customer. The differences between the amounts billed less previously received payments and the accrual adjustment are recorded as increases or decreases to cost recovery income when the final bills are prepared, which occurs during the first half of the subsequent year. Accounts receivable, accrued straight-line rents receivable and mortgages and notes receivable are reduced by an allowance for amounts that may become uncollectible in the future. We regularly evaluate the adequacy of our allowance for doubtful accounts. The evaluation primarily consists of reviewing past due account balances and considering such factors as the credit quality of our customer, historical trends of the customer and changes in customer payment terms. Additionally, with respect to customers in bankruptcy, we estimate the probable recovery through bankruptcy claims and adjust the allowance for amounts deemed uncollectible. If our assumptions regarding the collectability of receivables prove incorrect, we could experience losses in excess of our allowance for doubtful accounts. The allowance and its related receivable are written-off when we have concluded there is a low probability of collection and we have discontinued collection efforts. The following table sets forth the activity of allowance for doubtful accounts: Balance at December 31, 2017 Additions Deductions Balance at December 31, 2018 Allowance for Doubtful Accounts - Straight-Line Rent $ 819 $ 599 $ (777) $ 641 Allowance for Doubtful Accounts - Accounts Receivable 753 969 (556) 1,166 Allowance for Doubtful Accounts - Notes Receivable 72 — (28) 44 Totals $ 1,644 $ 1,568 $ (1,361) $ 1,851 Lease incentive costs, which are payments made to or on behalf of a customer as an incentive to sign a lease, are capitalized in deferred leasing costs and amortized on a straight-line basis over the respective lease terms as a reduction of rental revenues. Our real estate assets are leased to customers under operating leases. The minimum rental amounts under the leases are generally subject to scheduled fixed increases. Generally, the leases also provide that we receive cost recovery income from customers for increases in certain costs above the costs incurred during a contractually specified base year. Information as Lessee Under ASC 842 We have 20 properties subject to operating ground leases in Atlanta, Nashville, Orlando, Raleigh and Tampa with a weighted average remaining term of 51 years. Rental payments on these leases are adjusted periodically based on either the CPI or on a pre-determined schedule. The monthly payments on a pre-determined schedule are recognized on a straight-line basis over the terms of the respective leases. Changes in the CPI are not estimated as part of our measurement of straight-line rental expense. Upon initial adoption of ASC 842, we recognized a lease liability of $35.3 million ( in accounts payable, accrued expenses and other liabilities in prepaid expenses and other assets The following table sets forth the undiscounted cash flows of our scheduled obligations for future minimum payments on operating ground leases at December 31, 2020 and a reconciliation of those cash flows to the operating lease liability at December 31, 2020: 2021 $ 2,127 2022 2,169 2023 2,167 2024 2,123 2025 2,170 Thereafter 81,527 92,283 Discount (57,892) Lease liability $ 34,391 Information as Lessee Under ASC 840 Certain of our properties are subject to operating ground leases. Rental payments on these leases are adjusted periodically based on either the CPI or on a pre-determined schedule. Total rental property expense recorded for operating ground leases was $2.5 million for the year ended December 31, 2018.

Real Estate Assets

Real Estate Assets	12 Months Ended
	Dec. 31, 2020
Real Estate [Abstract]
Real Estate Assets	Real Estate Assets Acquisitions During 2020, we acquired two development parcels totaling less than one acre in Raleigh and Nashville for an aggregate purchase price of $8.5 million, including the issuance of 118,592 Common Units and capitalized acquisition costs. During 2019, we acquired a building in the central business district of Charlotte, which delivered in 2019 and encompasses 841,000 rentable square feet, for a net purchase price of $399.1 million. The assets acquired and liabilities assumed were recorded at relative fair value as determined by management, with the assistance of third party specialists, based on information available at the acquisition date and on current assumptions as to future operations. During 2019, we also acquired four development parcels totaling approximately 10 acres in Raleigh, Richmond and Pittsburgh for an aggregate purchase price, including capitalized acquisition costs, of $12.4 million. During 2018, we acquired two development parcels totaling approximately nine acres in Nashville for an aggregate purchase price, including capitalized acquisition costs, of $50.6 million. Dispositions During 2020, we sold a total of 52 buildings, encompassing 4,489,000 rentable square feet, in Greensboro and Memphis and various land parcels for an aggregate sale price of $494.2 million (before closing credits to buyer of $5.7 million) and recorded aggregate gains on disposition of property of $215.5 million. During 2020, we also recognized $0.4 million of gain related to the satisfaction of a performance obligation as part of a 2016 land sale. During 2019, we sold a total of six buildings and various land parcels for an aggregate sale price of $136.4 million and recorded aggregate gains on disposition of property of $39.5 million. During 2018, we sold a total of three buildings and various land parcels for an aggregate sale price of $90.6 million and recorded aggregate gains on disposition of property of $37.6 million. Impairments During 2020, we recorded an impairment of real estate assets of $1.8 million, which resulted from a change in market-based inputs and our assumptions about the use of the assets. During 2019, we recorded aggregate impairments of real estate assets of $5.8 million as a result of shortened hold periods from classifying all of our assets in Greensboro and Memphis as non-core and changes in market-based inputs and our assumptions about the use of the assets. During 2018, we recorded an impairment of real estate assets of $0.4 million, which resulted from a change in market-based inputs and our assumptions about the use of the assets.

Investments In and Advances To

Investments In and Advances To Affiliates	12 Months Ended
	Dec. 31, 2020
Equity Method Investments and Joint Ventures [Abstract]
Investments In and Advances To Affiliates	Investments in and Advances to Affiliates Unconsolidated Affiliates We have equity interests of up to 50.0% in various joint ventures with unrelated third parties that are accounted for using the equity method of accounting because we have the ability to exercise significant influence over the operating and financial policies of the joint venture investment. The difference between the cost of these investments and the net book value of the underlying net assets was $0.6 million and $0.7 million at December 31, 2020 and 2019, respectively. The following table sets forth our ownership in unconsolidated affiliates at December 31, 2020: Joint Venture Location Ownership Plaza Colonnade, Tenant-in-Common Kansas City 50.0% Kessinger/Hunter & Company, LC Kansas City 26.5% Highwoods DLF Forum, LLC (1) Raleigh 25.0% __________ (1) We acquired our joint venture partner’s 75.0% interest in our Highwoods DLF Forum, LLC joint venture (the “Forum”) in the first quarter of 2021. See Note 19. 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, 2020, 2019 and 2018, we recognized $1.0 million, $0.5 million and $0.4 million, respectively, of development/construction, management and leasing fees from our unconsolidated joint ventures. At December 31, 2020 and 2019, we had receivables of $0.2 million and $0.1 million, respectively, related to these fees in accounts receivable. Consolidated Variable Interest Entity In 2019, we and The Bromley Companies formed a joint venture (the “Midtown One joint venture”) to construct Midtown West, a 150,000 square foot, multi-customer office building located in the mixed-use Midtown Tampa project in Tampa’s Westshore submarket. Midtown West has an anticipated total investment of $71.3 million. Construction of Midtown West began in the third quarter of 2019 with a scheduled completion date in the second quarter of 2021. At closing, we agreed to contribute cash of $20.0 million, which has been fully funded, in exchange for an 80.0% interest in the Midtown One joint venture and The Bromley Companies contributed land valued at $5.0 million in exchange for the remaining 20.0% interest. We also committed to provide a $46.3 million interest-only secured construction loan to the Midtown One joint venture that is scheduled to mature on the second anniversary of completion. The loan bears interest at LIBOR plus 250 basis points. As of December 31, 2020, $18.5 million under the loan has been funded. We determined that we have a variable interest in the Midtown One joint venture primarily because the entity was designed to pass along interest rate risk, equity price risk and operation risk to us as both a debt and an equity holder and The Bromley Companies as an equity holder. The Midtown One joint venture was further determined to be a variable interest entity as it requires additional subordinated financial support in the form of a loan because the initial equity investment provided by us and The Bromley Companies is not sufficient to finance its planned investments and operations. We, as majority owner and managing member and through our control rights as set forth in the joint venture’s governance documents, were determined to be the primary beneficiary as we have both the power to direct the activities that most significantly affect the entity (primarily lease rates, property operations and capital expenditures) and significant economic exposure through our equity investment and loan commitment. As such, the Midtown One joint venture is consolidated and all intercompany transactions and accounts are eliminated. The following table sets forth the assets and liabilities of the Midtown One joint venture included on our Consolidated Balance Sheets: December 31, Development in-process $ 46,873 Deferred leasing costs $ 196 Prepaid expenses and other assets $ 75 Accounts payable, accrued expenses and other liabilities $ 2,693 The assets of the Midtown One joint venture can be used only to settle obligations of the joint venture and its creditors have no recourse to our wholly owned assets. Other Consolidated Affiliate We have a 50.0% ownership interest in Highwoods-Markel Associates, LLC (“Markel”), a consolidated joint venture. We are the manager and leasing agent for Markel’s properties, which are located in Richmond in exchange for customary management and leasing fees. We consolidate Markel since we are the managing member and control the major operating and financial policies of the entity. As controlling member, we have an obligation to cause this property-owning entity to distribute proceeds of liquidation to the noncontrolling interest member in these partially owned properties only if the net proceeds received by the entity from the sale of any of Markel’s assets warrant a distribution as determined by the agreement governing the joint venture. We estimate the value of such noncontrolling interest distributions would have been $30.7 million had the entity been liquidated at December 31, 2020. This estimated settlement value is based on the fair value of the underlying properties which is based on a number of assumptions that are subject to economic and market uncertainties including, among others, demand for space, competition for customers, changes in market rental rates and costs to operate each property. If the entity’s underlying assets are worth less than the underlying liabilities on the date of such liquidation, we would have no obligation to remit any consideration to the noncontrolling interest holder.

Intangible Assets and Below Mar

Intangible Assets and Below Market Leaes Liabilities	12 Months Ended
	Dec. 31, 2020
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, 2020 2019 Assets: Deferred leasing costs (including lease incentives and above market lease and in-place lease acquisition-related intangible assets) $ 361,027 $ 377,472 Less accumulated amortization (151,698) (146,125) $ 209,329 $ 231,347 Liabilities (in accounts payable, accrued expenses and other liabilities): Acquisition-related below market lease liabilities $ 63,748 $ 65,971 Less accumulated amortization (37,838) (34,014) $ 25,910 $ 31,957 The following table sets forth amortization of intangible assets and below market lease liabilities: Year Ended December 31, 2020 2019 2018 Amortization of deferred leasing costs and acquisition-related intangible assets (in depreciation and amortization) $ 34,401 $ 37,386 $ 36,486 Amortization of lease incentives (in rental and other revenues) $ 1,847 $ 4,281 $ 1,908 Amortization of acquisition-related intangible assets (in rental and other revenues) $ 1,137 $ 1,290 $ 1,677 Amortization of acquisition-related intangible assets (in rental property and other expenses) $ 510 $ 557 $ 557 Amortization of acquisition-related below market lease liabilities (in rental and other revenues) $ (6,031) $ (6,633) $ (6,085) The following table sets forth scheduled future amortization of intangible assets and below market lease liabilities: Years Ending December 31, Amortization Amortization Amortization Amortization 2021 $ 34,063 $ 1,563 $ 711 $ (4,958) 2022 30,011 1,353 601 (3,977) 2023 26,496 1,279 447 (3,600) 2024 23,348 1,133 373 (2,932) 2025 19,224 1,064 342 (1,673) Thereafter 60,979 4,523 1,819 (8,770) $ 194,121 $ 10,915 $ 4,293 $ (25,910) Weighted average remaining amortization periods as of December 31, 2020 (in years) 8.3 9.5 9.7 8.6

Mortgages and Notes Payable

Mortgages and Notes Payable	12 Months Ended
	Dec. 31, 2020
Debt Disclosure [Abstract]
Mortgages and Notes Payable	Mortgages and Notes Payable Our mortgages and notes payable consisted of the following: December 31, 2020 2019 Secured indebtedness: 4.00% mortgage loan due 2029 (1) $ 93,350 $ 95,303 93,350 95,303 Unsecured indebtedness: 3.20% (3.363% effective rate) notes due 2021 (2) 149,901 299,369 3.625% (3.752% effective rate) notes due 2023 (3) 249,464 249,201 3.875% (4.038% effective rate) notes due 2027 (4) 297,534 297,134 4.125% (4.271% effective rate) notes due 2028 (5) 347,035 346,621 4.20% (4.234% effective rate) notes due 2029 (6) 349,189 349,091 3.050% (3.079% effective rate) notes due 2030 (7) 399,106 399,009 2.600% (2.645% effective rate) notes due 2031 (8) 398,423 — Variable rate term loan due 2022 (9) — 100,000 Variable rate term loan due 2022 (10) 200,000 200,000 Revolving credit facility due 2022 — 221,000 2,390,652 2,461,425 Less-unamortized debt issuance costs (13,981) (13,018) Total mortgages and notes payable, net $ 2,470,021 $ 2,543,710 __________ (1) Our secured mortgage loan was collateralized by real estate assets with an undepreciated book value of $147.9 million at December 31, 2020. We paid down $2.0 million of secured loan balances through principal amortization during 2020. (2) Net of unamortized original issuance discount of $0.1 million and $0.6 million as of December 31, 2020 and 2019, respectively. (3) Net of unamortized original issuance discount of $0.5 million and $0.8 million as of December 31, 2020 and 2019, respectively. (4) Net of unamortized original issuance discount of $2.5 million and $2.9 million as of December 31, 2020 and 2019, respectively. (5) Net of unamortized original issuance discount of $3.0 million and $3.4 million as of December 31, 2020 and 2019, respectively. (6) Net of unamortized original issuance discount of $0.8 million and $0.9 million as of December 31, 2020 and 2019, respectively. (7) Net of unamortized original issuance discount of $0.9 million and $1.0 million as of December 31, 2020 and 2019, respectively. (8) Net of unamortized original issuance discount of $1.6 million as of December 31, 2020. (9) This debt was repaid in 2020. (10) As more fully described in Note 7, we entered into floating-to-fixed interest rate swaps that effectively fix LIBOR for $50.0 million of this loan through January 2022. Accordingly, the equivalent fixed rate of this amount is 2.79%. The interest rate on the remaining $150.0 million was 1.25% at December 31, 2020. The following table sets forth scheduled future principal payments, including amortization, due on our mortgages and notes payable at December 31, 2020: Years Ending December 31, Principal Amount 2021 $ 150,504 2022 200,686 2023 251,024 2024 1,124 2025 (1) (185) Thereafter 1,880,849 Less-unamortized debt issuance costs (13,981) $ 2,470,021 __________ (1) Represents amortization of discounts in excess of principal payments due. Our $600.0 million unsecured revolving credit facility is scheduled to mature in January 2022 and includes an accordion feature that allows for an additional $400.0 million of borrowing capacity subject to additional lender commitments. Assuming no defaults have occurred, we have an option to extend the maturity for two additional six During 2020, the Operating Partnership issued $400.0 million aggregate principal amount of 2.600% notes due February 2031, less original issuance discount of $1.6 million. These notes were priced to yield 2.645%. Underwriting fees and other expenses were incurred that aggregated $3.4 million; these costs were deferred and will be amortized over the term of the notes. The net proceeds from the issuance were used: (1) to finance the Operating Partnership’s cash tender offer to purchase $150.0 million principal amount of its 3.20% notes due June 15, 2021 at a purchase price of 101.908% of the face amount of the notes, plus accrued and unpaid interest; (2) to prepay without penalty our $100.0 million unsecured bank term loan that was scheduled to mature in January 2022 and which bore interest at LIBOR plus 110 basis points; and (3) for general corporate purposes. We recorded $3.7 million of aggregate losses on debt extinguishment related to the repurchase of the 3.20% notes and the term loan prepayment. During 2019, the Operating Partnership issued $400.0 million aggregate principal amount of 3.050% notes due February 2030, less original issuance discount of $1.0 million. These notes were priced to yield 3.079%. Underwriting fees and other expenses were incurred that aggregated $3.4 million; these costs were deferred and will be amortized over the term of the notes. During 2019, the Operating Partnership issued $350.0 million aggregate principal amount of 4.20% notes due April 2029, less original issuance discount of $1.0 million. These notes were priced to yield 4.234%. Underwriting fees and other expenses were incurred that aggregated $3.1 million; these costs were deferred and will be amortized over the term of the notes. During 2019, we prepaid without penalty the remaining $225.0 million on our seven During 2019, we prepaid without penalty $100.0 million on our $200.0 million unsecured bank term loan and recorded $0.3 million of loss on debt extinguishment related to this prepayment. During 2020, we prepaid without penalty the remaining $100.0 million upon issuance of the $400.0 million aggregate principal amount of 2.600% notes due February 2031. The term loan was scheduled to mature in January 2022 and bore interest at LIBOR plus 110 basis points. During 2018, we paid off at maturity $200.0 million principal amount of 7.5% unsecured notes. During 2018, the Operating Partnership issued $350.0 million aggregate principal amount of 4.125% notes due March 2028, less original issuance discount of $4.1 million. These notes were priced to yield 4.271%. Underwriting fees and other expenses were incurred that aggregated $2.9 million; these costs were deferred and will be amortized over the term of the notes. Our revolving credit facility and bank term loans require us to comply with customary operating covenants and various financial requirements. Upon an event of default on the revolving credit facility, the lenders having at least 51.0% of the total commitments under the revolving credit facility can accelerate all borrowings then outstanding, and we could be prohibited from borrowing any further amounts under our revolving credit facility, which would adversely affect our ability to fund our operations. In addition, certain of our unsecured debt agreements contain cross-default provisions giving the unsecured lenders the right to declare a default if we are in default under more than $30.0 million with respect to other loans in some circumstances. We are currently in compliance with financial covenants with respect to our consolidated debt. The Operating Partnership has $149.9 million carrying amount of 2021 notes outstanding, $249.5 million carrying amount of 2023 notes outstanding, $297.5 million carrying amount of 2027 notes outstanding, $347.0 million carrying amount of 2028 notes outstanding, $349.2 million carrying amount of 2029 notes outstanding, $399.1 million carrying amount of 2030 notes outstanding and $398.4 million carrying amount of 2031 notes outstanding. The indenture that governs these outstanding notes requires us to comply with customary operating covenants and various financial ratios. The trustee or the holders of at least 25.0% in principal amount of any series of notes can accelerate the principal amount of such series upon written notice of a default that remains uncured after 60 days. We have considered our short-term liquidity needs within one year from February 9, 2021 (the date of issuance of the annual financial statements) and the adequacy of our estimated cash flows from operating activities and other available financing sources to meet these needs. In particular, we have considered our scheduled debt maturities during such one-year period, including the remaining $150.0 million principal amount of unsecured notes that are scheduled to mature on June 15, 2021. We intend to exercise our right to redeem the remaining 3.20% notes at par on April 15, 2021. We have concluded it is probable we will meet these short-term liquidity requirements through a combination of the following: • available cash and cash equivalents; • cash flows from operating activities; • issuance of debt securities by the Operating Partnership; • issuance of secured debt; • bank term loans; • borrowings under our revolving credit facility; • issuance of equity securities by the Company or the Operating Partnership; and • the disposition of non-core assets. Capitalized Interest Total interest capitalized to development and significant building and tenant improvement projects was $8.3 million, $5.6 million and $6.7 million for the years ended December 31, 2020, 2019 and 2018, respectively.

Derivative Financial Instrument

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial InstrumentsDuring 2019, we entered into $150.0 million notional amount of forward-starting swaps that effectively locked the underlying 10-year treasury rate at 1.87% with respect to a planned issuance of debt securities by the Operating Partnership. Upon the subsequent issuance of the $400.0 million aggregate principal amount of 3.050% notes due February 2030 during 2019, we terminated the forward-starting swaps and paid cash upon settlement. The unrealized loss of $6.6 million in accumulated other comprehensive income/(loss) will be reclassified to interest expense as interest payments are made on the debt. During 2018, we entered into an aggregate of $225.0 million notional amount of forward-starting swaps that effectively locked the underlying 10-year treasury rate at a weighted average of 2.86% with respect to a planned issuance of debt securities by the Operating Partnership. Upon issuance of the $350.0 million aggregate principal amount of 4.20% notes due April 2029 during 2019, we terminated the forward-starting swaps and paid cash upon settlement. The unrealized loss of $5.1 million in accumulated other comprehensive income/(loss) will be reclassified to interest expense as interest payments are made on the debt. We previously entered into $150.0 million notional amount of forward-starting swaps that effectively locked the underlying 10-year treasury rate at 2.44% with respect to a planned issuance of debt securities by the Operating Partnership. Upon issuance of the $350.0 million aggregate principal amount of 4.125% notes due March 2028 during 2018, we terminated the forward-starting swaps and received cash upon settlement. The unrealized gain of $7.0 million in accumulated other comprehensive income/(loss) will be reclassified to interest expense as interest payments are made on the debt and a gain of $0.2 million of hedge ineffectiveness was recognized in interest expense. We previously entered into floating-to-fixed interest rate swaps through January 2022 with respect to an aggregate of $50.0 million LIBOR-based borrowings. These swaps effectively fix the underlying one We also had floating-to-fixed interest rate swaps with respect to an aggregate of $225.0 million LIBOR-based borrowings. These swaps effectively fixed the underlying one The counterparties under our swaps are major financial institutions. The swap agreements contain a provision whereby if we default on certain of our indebtedness and which default results in repayment of such indebtedness being, or becoming capable of being, accelerated by the lender, then we could also be declared in default on our swaps. Our interest rate swaps have been designated as and are being accounted for as cash flow hedges with changes in fair value recorded in other comprehensive income/(loss) each reporting period. We have no collateral requirements related to our interest rate swaps. Amounts reported in accumulated other comprehensive income/(loss) related to derivatives will be reclassified to interest expense as interest payments are made on our debt. During 2021, we estimate that $0.5 million will be reclassified as a net increase to interest expense. The following table sets forth the fair value of our derivatives: December 31, 2020 2019 Derivatives: Derivatives designated as cash flow hedges in accounts payable, accrued expenses and other liabilities: Interest rate swaps $ 846 $ 154 The following table sets forth the effect of our cash flow hedges on accumulated other comprehensive income/(loss) and interest expense: Year Ended December 31, 2020 2019 2018 Derivatives Designated as Cash Flow Hedges: Amount of unrealized gains/(losses) recognized in accumulated other comprehensive income/(loss) on derivatives: Interest rate swaps $ (1,238) $ (9,134) $ 4,161 Amount of (gains)/losses reclassified out of accumulated other comprehensive income/(loss) into interest expense: Interest rate swaps $ 247 $ (1,250) $ (2,086)

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Lease and Contractual Commitments We have $212.9 million of lease and contractual commitments at December 31, 2020. Lease and contractual commitments represent commitments under signed leases and contracts for operating properties (excluding tenant-funded tenant improvements) and contracts for development/redevelopment projects, of which $58.0 million was recorded on our Consolidated Balance Sheets at December 31, 2020. Contingent Consideration We had $0.8 million and $5.3 million of contingent consideration related to certain parcels of acquired development land at December 31, 2020 and 2019, respectively. The contingent consideration for each is payable in cash to a third party if and to the extent future development milestones as outlined in the purchase agreements are met. Environmental Matters Substantially all of our in-service and development properties have been subjected to Phase I environmental assessments and, in certain instances, Phase II environmental assessments. Such assessments and/or updates have not revealed, nor are we aware of, any environmental liability that we believe would have a material adverse effect on our Consolidated Financial Statements. Litigation, Claims and Assessments We are from time to time a party to a variety of legal proceedings, claims and assessments arising in the ordinary course of our business. We regularly assess the liabilities and contingencies in connection with these matters based on the latest information available. For those matters where it is probable that we have incurred or will incur a loss and the loss or range of loss can be reasonably estimated, the estimated loss is accrued and charged to income in our Consolidated Financial Statements. In other instances, because of the uncertainties related to both the probable outcome and amount or range of loss, a reasonable estimate of liability, if any, cannot be made. Based on the current expected outcome of such matters, none of these proceedings, claims or assessments is expected to have a material effect on our business, financial condition, results of operations or cash flows. COVID-19 Since early March 2020, efforts to slow the spread of the COVID-19 virus have had a significant impact on the U.S. economy. We continue to follow the policies described in Notes 1 and 2, including those related to impairments of real estate assets and investments in unconsolidated affiliates, leases and estimates of credit losses on operating lease receivables. While the results of our current analyses did not result in any material adjustments to amounts as of and for the year ended December 31, 2020, circumstances related to the COVID-19 pandemic may result in recording impairments, lease modifications and credit losses in future periods.

Noncontrolling Interests

Noncontrolling Interests	12 Months Ended
	Dec. 31, 2020
Noncontrolling Interest [Abstract]
Noncontrolling Interests	Noncontrolling Interests Noncontrolling Interests in Consolidated Affiliates At December 31, 2020, our noncontrolling interests in consolidated affiliates relate to our joint venture partners’ 50.0% interest in office properties in Richmond and 20.0% interest in an office development property in Tampa. Our joint venture partners are unrelated third parties. Noncontrolling Interests in the Operating Partnership Noncontrolling interests in the Operating Partnership relate to the ownership of Redeemable Common Units. Net income attributable to noncontrolling interests in the Operating Partnership is computed by applying the weighted average percentage of Redeemable Common Units during the period, as a percent of the total number of outstanding Common Units, to the Operating Partnership’s net income for the period after deducting distributions on Preferred Units. When a noncontrolling unitholder redeems a Common Unit for a share of Common Stock or cash, the noncontrolling interests in the Operating Partnership are reduced and the Company’s share in the Operating Partnership is increased by the fair value of each security at the time of redemption. The following table sets forth the Company’s noncontrolling interests in the Operating Partnership: Year Ended December 31, 2020 2019 Beginning noncontrolling interests in the Operating Partnership $ 133,216 $ 105,960 Adjustment of noncontrolling interests in the Operating Partnership to fair value (30,617) 29,557 Issuances of Common Units 6,163 — Conversions of Common Units to Common Stock (145) (663) Net income attributable to noncontrolling interests in the Operating Partnership 9,338 3,551 Distributions to noncontrolling interests in the Operating Partnership (5,456) (5,189) Total noncontrolling interests in the Operating Partnership $ 112,499 $ 133,216 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, 2020 2019 2018 Net income available for common stockholders $ 344,914 $ 134,430 $ 169,343 Increase in additional paid in capital from conversions of Common Units to Common Stock 145 663 4,043 Issuances of Common Units (6,163) — — Change from net income available for common stockholders and transfers from noncontrolling interests $ 338,896 $ 135,093 $ 173,386

Disclosure About Fair Value of

Disclosure About Fair Value of Financial Instruments	12 Months Ended
	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Disclosure About Fair Value of Financial Instruments	Disclosure About Fair Value of Financial Instruments The following summarizes the levels of inputs that we use to measure fair value. Level 1. Quoted prices in active markets for identical assets or liabilities. Our Level 1 asset is our investment in marketable securities that we use to pay benefits under our non-qualified deferred compensation plan. Our Level 1 liability is our non-qualified deferred compensation obligation. The Company’s Level 1 noncontrolling interests in the Operating Partnership relate to the ownership of Common Units by various individuals and entities other than the Company. Level 2. Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the related assets or liabilities. Our Level 2 assets include the fair value of our mortgages and notes receivable. Our Level 2 liabilities include the fair value of our mortgages and notes payable and interest rate swaps. The fair value of mortgages and notes receivable and mortgages and notes payable is estimated by the income approach utilizing contractual cash flows and market-based interest rates to approximate the price that would be paid in an orderly transaction between market participants. The fair value of interest rate swaps is determined using the market standard methodology of netting the discounted future fixed cash receipts and the discounted expected variable cash payments. The variable cash payments of interest rate swaps are based on the expectation of future interest rates (forward curves) derived from observed market interest rate curves. In addition, credit valuation adjustments are considered in the fair values to account for potential nonperformance risk, but were concluded to not be significant inputs to the calculation for the periods presented. Level 3. Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Our Level 3 assets include any real estate assets recorded at fair value on a non-recurring basis as a result of our quarterly impairment analysis, which are valued using unobservable local and national industry market data such as comparable sales, appraisals, brokers’ opinions of value and/or the terms of definitive sales contracts. Significant increases or decreases in any valuation inputs in isolation would result in a significantly lower or higher fair value measurement. The following table sets forth our assets and liabilities and the Company’s noncontrolling interests in the Operating Partnership that are measured or disclosed at fair value within the fair value hierarchy: Level 1 Level 2 Total Quoted Prices Significant Observable Inputs Fair Value at December 31, 2020: Assets: Mortgages and notes receivable, at fair value (1) $ 1,341 $ — $ 1,341 Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets) 2,573 2,573 — Total Assets $ 3,914 $ 2,573 $ 1,341 Noncontrolling Interests in the Operating Partnership $ 112,499 $ 112,499 $ — Liabilities: Mortgages and notes payable, net, at fair value (1) $ 2,639,163 $ — $ 2,639,163 Interest rate swaps (in accounts payable, accrued expenses and other liabilities) 846 — 846 Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities) 2,573 2,573 — Total Liabilities $ 2,642,582 $ 2,573 $ 2,640,009 Fair Value at December 31, 2019: Assets: Mortgages and notes receivable, at fair value (1) $ 1,501 $ — $ 1,501 Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets) 2,345 2,345 — Total Assets $ 3,846 $ 2,345 $ 1,501 Noncontrolling Interests in the Operating Partnership $ 133,216 $ 133,216 $ — Liabilities: Mortgages and notes payable, net, at fair value (1) $ 2,615,776 $ — $ 2,615,776 Interest rate swaps (in accounts payable, accrued expenses and other liabilities) 154 — 154 Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities) 2,345 2,345 — Total Liabilities $ 2,618,275 $ 2,345 $ 2,615,930 __________ (1) Amounts are not recorded at fair value on our Consolidated Balance Sheets at December 31, 2020 and 2019. The Level 3 impaired real estate assets measured at a fair value of $2.1 million in the second quarter of 2020 included a non-core office building. The impairment resulted from a change in our assumptions about the use of the assets and was calculated using brokers’ opinions of value, letters of intent and comparable sales as observable inputs were not available. The Level 3 impaired real estate assets measured at a fair value of $7.6 million in the third quarter of 2019 included an office building and land held for development. The aggregate impairments resulted from a change in our assumptions about the use of the assets and were calculated using brokers’ opinions of value and comparable sales as observable inputs were not available. The Level 3 impaired real estate assets measured at a fair value of $0.7 million in the second quarter of 2019 included land held for development. The impairment resulted from a change in our assumptions about the use of the assets and was calculated using the terms of definitive sales contracts as observable inputs were not available.

Equity

Equity	12 Months Ended
	Dec. 31, 2020
Equity [Abstract]
Equity	Equity Common Stock Issuances At December 31, 2020, the Company had 96.1 million remaining shares of Common Stock authorized to be issued under its charter. Common Stock Dividends Dividends of the Company declared per share of Common Stock aggregated $1.92, $1.90 and $1.85 for the years ended December 31, 2020, 2019 and 2018, 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, 2020 2019 2018 Ordinary dividend $ 1.65 $ 1.64 $ 1.48 Capital gains 0.25 0.13 0.31 Return of capital 0.02 0.13 0.06 Total $ 1.92 $ 1.90 $ 1.85 The Company’s tax returns have not been examined by the Internal Revenue Service (“IRS”) and, therefore, the taxability of dividends is subject to change. Preferred Stock The following table sets forth the Company’s Preferred Stock: Issue Date Number of Shares Outstanding Carrying Value Liquidation Preference Per Share Optional Redemption Date Annual Dividends Payable Per Share (in thousands) December 31, 2020 8.625% Series A Cumulative Redeemable 2/12/1997 29 $ 28,826 $ 1,000 2/12/2027 $ 86.25 December 31, 2019 8.625% Series A Cumulative Redeemable 2/12/1997 29 $ 28,859 $ 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, 2020 2019 2018 8.625% Series A Cumulative Redeemable: Ordinary dividend $ 74.96 $ 79.90 $ 71.22 Capital gains 11.29 6.35 15.03 Total $ 86.25 $ 86.25 $ 86.25 The Company’s tax returns have not been examined by the IRS and, therefore, the taxability of dividends is subject to change. Warrants At both December 31, 2020 and 2019, we had 15,000 warrants outstanding with an exercise price of $32.50 per share. Upon exercise of a warrant, the Company will contribute the exercise price to the Operating Partnership in exchange for Common Units. Therefore, the Operating Partnership accounts for such warrants as if issued by the Operating Partnership. These warrants have no expiration date. Common Unit Distributions Distributions of the Operating Partnership declared per Common Unit aggregated $1.92, $1.90 and $1.85 for the years ended December 31, 2020, 2019 and 2018, respectively. Redeemable Common Units Generally, the Operating Partnership is obligated to redeem each Redeemable Common Unit at the request of the holder thereof for cash equal to the value of one share of Common Stock based on the average of the market price for the 10 trading days immediately preceding the notice date of such redemption, provided that the Company, at its option, may elect to acquire any such Redeemable Common Unit presented for redemption for cash or one share of Common Stock. When a holder redeems a Redeemable Common Unit for a share of Common Stock or cash, the Company’s share in the Operating Partnership will be increased. The Common Units owned by the Company are not redeemable. Preferred Units The following table sets forth the Operating Partnership’s Preferred Units: Issue Date Number of Carrying Liquidation Preference Optional Redemption Annual (in thousands) December 31, 2020 8.625% Series A Cumulative Redeemable 2/12/1997 29 $ 28,826 $ 1,000 2/12/2027 $ 86.25 December 31, 2019 8.625% Series A Cumulative Redeemable 2/12/1997 29 $ 28,859 $ 1,000 2/12/2027 $ 86.25

Employee Benefit Plans

Employee Benefit Plans	12 Months Ended
	Dec. 31, 2020
Share-based Payment Arrangement [Abstract]
Employee Benefit Plans	Employee Benefit Plans Officer, Management and Director Compensation Programs Officers of the Company participate in an annual non-equity incentive program pursuant to which they are eligible to earn cash payments based on a percentage of their annual base salary in effect for December of the applicable year. Under this component of our executive compensation program, officers are eligible to earn additional cash compensation to the extent specific performance-based metrics are achieved during the most recently completed year. The position held by each officer has a target annual incentive percentage that ranges from 35% to 130% of base salary. The more senior the position, the greater the portion of compensation that varies with performance. The percentage amount an officer may earn under the annual non-equity incentive plan is the product of the target annual incentive percentage times an “actual performance factor,” which can range from zero to 200%. The actual performance factor depends upon the relationship between actual performance in specific areas at each of our divisions and predetermined goals. For corporate officers, the actual performance factor is based on the goals and criteria applied to the Company’s performance as a whole. For officers who oversee our divisions, the actual performance factor is based on the goals and criteria applied partly to that division’s performance and partly to the Company’s performance overall. Amounts under our annual non-equity incentive plan are accrued and expensed in the year earned, but are typically paid early in the following year. Certain other employees participate in a similar annual non-equity incentive program. Incentive eligibility ranges from 10% to 30% of annual base salary. The actual incentive payment is determined by a mix of the Company’s overall performance, the performance of any applicable division and the individual’s performance during each year. These amounts are also accrued and expensed in the year earned, but are typically paid early in the following year. The Company’s officers are eligible to receive a mix of long-term equity incentive awards on or about March 1 of each year. Prior to 2018, the mix generally consisted of stock options, time-based restricted stock and total return-based restricted stock. Since 2018, the mix has consisted of time-based restricted stock and total return-based restricted stock. Time-based restricted stock grants are also made annually to directors and certain other employees. Dividends received on restricted stock are non-forfeitable and are paid at the same rate and on the same date as on shares of Common Stock, except that, with respect to shares of total return-based restricted stock issued to the Company’s chief executive officer, dividends accumulate and are payable only if and to the extent the shares vest. Dividends paid on subsequently forfeited shares are expensed. Additional shares of total return-based restricted stock may be issued at the end of the applicable measurement periods if and to the extent actual performance exceeds certain levels of performance. Such additional shares, if any, would be fully vested when issued. No expense is recorded for additional shares of total return-based restricted stock that may be issued at the end of the applicable measurement period since that possibility is reflected in the grant date fair value. The following table sets forth the number of shares of Common Stock reserved for future issuance under the Company’s long-term equity incentive plans: December 31, 2020 2019 Outstanding stock options and warrants 552,373 599,902 Possible future issuance under equity incentive plans 1,926,324 2,016,659 2,478,697 2,616,561 Of the possible future issuance under the Company’s long-term equity incentive plans at December 31, 2020, no more than an additional 0.3 million shares can be in the form of restricted stock. During the years ended December 31, 2020, 2019 and 2018, we recognized $6.2 million, $7.2 million and $7.5 million, respectively, of share-based compensation expense. Because REITs generally do not pay income taxes, we do not realize tax benefits on share-based payments. At December 31, 2020, there was $5.2 million of total unrecognized share-based compensation costs, which will be recognized over a weighted average remaining contractual term of 1.9 years. - Stock Options Stock options issued from 2014 through 2017 vest ratably on an annual basis over four years and expire after 10 years. All stock options have an exercise price equal to the last reported stock price of our Common Stock on the New York Stock Exchange (“NYSE”) on the last trading day prior to grant. The value of all options as of the date of grant is calculated using the Black-Scholes option-pricing model and is amortized over the respective vesting period or the service period, if shorter, for employees who are or will become eligible under the Company’s retirement plan. The following table sets forth stock option activity: Options Outstanding Number of Options Weighted Average Exercise Price Stock options outstanding at December 31, 2017 640,822 $ 45.29 Exercised (44,304) 40.15 Stock options outstanding at December 31, 2018 596,518 45.67 Exercised (9,026) 39.53 Forfeited (2,590) 48.79 Stock options outstanding at December 31, 2019 584,902 45.75 Exercised (42,163) 41.10 Forfeited (5,366) 50.82 Stock options outstanding at December 31, 2020 (1) (2) 537,373 $ 46.07 __________ (1) The outstanding options at December 31, 2020 had a weighted average remaining life of 5.0 years. (2) The Company had 496,656 options exercisable at December 31, 2020 with a weighted average exercise price of $45.54, weighted average remaining life of 4.9 years and intrinsic value of $0.1 million. Of these exercisable options, 436,880 had exercise prices higher than the market price of our Common Stock at December 31, 2020. Cash received or receivable from options exercised was $1.9 million, $0.4 million and $1.9 million for the years ended December 31, 2020, 2019 and 2018, respectively. The total intrinsic value of options exercised during the years ended December 31, 2020, 2019 and 2018 was $0.4 million, $0.1 million and $0.4 million, respectively. The total intrinsic value of options outstanding at December 31, 2020, 2019 and 2018 was $0.1 million, $2.4 million and $0.1 million, respectively. The Company generally does not permit the net cash settlement of exercised stock options, but does permit net share settlement so long as the shares received are held for at least a year. The Company has a practice of issuing new shares to satisfy stock option exercises. - Time-Based Restricted Stock Shares of time-based restricted stock vest ratably on an annual basis generally over four years. Beginning in 2019, shares of time-based restricted stock granted to non-employee directors vest on the first anniversary of the grant date. The value of grants of time-based restricted stock is based on the market value of Common Stock as of the date of grant and is amortized to expense over the respective vesting period or the service period, if shorter, for employees who are or will become eligible under the Company’s retirement plan. The following table sets forth time-based restricted stock activity: Number of Shares Weighted Average Grant Date Fair Value Restricted shares outstanding at December 31, 2017 172,246 $ 46.46 Awarded and issued (1) 94,984 43.01 Vested (2) (73,307) 44.19 Forfeited (2,684) 45.89 Restricted shares outstanding at December 31, 2018 191,239 45.62 Awarded and issued (1) 103,590 45.98 Vested (2) (73,036) 45.79 Forfeited (3,642) 46.07 Restricted shares outstanding at December 31, 2019 218,151 45.73 Awarded and issued (1) 83,116 44.88 Vested (2) (88,326) 45.86 Forfeited (3,751) 45.78 Restricted shares outstanding at December 31, 2020 209,190 $ 45.34 __________ (1) The weighted average fair value at grant date of time-based restricted stock issued during the years ended December 31, 2020, 2019 and 2018 was $3.7 million, $4.8 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, 2020, 2019 and 2018 was $3.9 million, $3.3 million and $3.2 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 2020 2019 2018 Risk free interest rate (1) 0.9 % 2.4 % 2.3 % Common stock dividend yield (2) 3.9 % 4.4 % 3.9 % Expected volatility (3) 20.4 % 27.3 % 41.1 % __________ (1) Represents the interest rate as of the grant date on US treasury bonds having the same life as the estimated life of the total return-based restricted stock grants. (2) The dividend yield is calculated utilizing the then current regular dividend rate for a one three (3) Based on the historical volatility of Common Stock over a period relevant to the related total return-based restricted stock grant. The following table sets forth total return-based restricted stock activity: Number of Shares Weighted Average Grant Date Fair Value Restricted shares outstanding at December 31, 2017 160,724 $ 44.72 Awarded and issued (1) 77,456 40.81 Vested (2) (41,160) 45.61 Forfeited (3) (16,926) 45.24 Restricted shares outstanding at December 31, 2018 180,094 43.34 Awarded and issued (1) 87,344 39.42 Vested (2) (45,901) 43.68 Forfeited (3) (12,689) 43.58 Restricted shares outstanding at December 31, 2019 208,848 42.22 Awarded and issued (1) 66,188 38.31 Forfeited (3) (49,852) 51.93 Restricted shares outstanding at December 31, 2020 225,184 $ 39.53 __________ (1) The fair value at grant date of total return-based restricted stock issued during the years ended December 31, 2020, 2019 and 2018 was $2.5 million, $3.4 million and $3.2 million, respectively, at target. (2) The vesting date fair value of total return-based restricted stock that vested during the years ended December 31, 2019 and 2018 was $2.1 million and $1.8 million, respectively, based on the performance of the specific plans. Vested shares include those shares surrendered by employees to satisfy tax withholding obligations in connection with such vesting. There were no vested shares of total return-based restricted stock during the year ended December 31, 2020. (3) The 2020, 2019 and 2018 amounts include 46,852, 9,521 and 13,707 shares, respectively, that were forfeited at the end of the applicable measurement period because the applicable total return did not meet targeted levels. 401(k) Retirement Savings Plan We have a 401(k) Retirement Savings Plan covering substantially all employees who meet certain age and employment criteria. We contribute amounts for each participant at a rate of 75% of the employee’s contribution (up to 6% of each employee’s bi-weekly salary and cash incentives, subject to statutory limits). During the years ended December 31, 2020, 2019 and 2018, we contributed $1.4 million, $1.5 million and $1.4 million, respectively, to the 401(k) savings plan. The assets of this qualified plan are not included in our Consolidated Financial Statements since the assets are not owned by us. Retirement Plan The Company has a retirement plan for employees with at least 30 years of continuous service or are at least 55 years old with at least 10 years of continuous service. Subject to advance written notice and a non-compete agreement, eligible retirees would be entitled to receive a pro rata amount of any annual non-equity incentive compensation earned during the year of retirement and stock options and time-based restricted stock would be non-forfeitable and vest according to the terms of their original grants. Eligible retirees would also be entitled to retain any total return-based restricted stock that subsequently vests after the retirement date according to the terms of their original grants. For employees who meet the age and service eligibility requirements, 100% of their annual grants are expensed at the grant date as if fully vested. For employees who will meet the age and service eligibility requirements within the normal vesting periods, the grants are amortized over the shorter service period. Deferred Compensation Prior to 2010, officers could elect to defer all or a portion of their cash compensation, which was then invested in unrelated mutual funds under a non-qualified deferred compensation plan. These investments are recorded at fair value, which aggregated $2.6 million and $2.3 million at December 31, 2020 and 2019, 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, 2020 2019 2018 Beginning deferred compensation liability $ 2,345 $ 1,849 $ 2,388 Mark-to-market adjustment to deferred compensation (in general and administrative expenses) 228 496 (182) Distributions from deferred compensation plans — — (357) Total deferred compensation liability $ 2,573 $ 2,345 $ 1,849 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

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income/(Loss)	12 Months Ended
	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income/(Loss)	Accumulated Other Comprehensive Income/(Loss) The following table sets forth the components of accumulated other comprehensive income/(loss): December 31, 2020 2019 Cash flow hedges: Beginning balance $ (471) $ 9,913 Unrealized losses on cash flow hedges (1,238) (9,134) Amortization of cash flow hedges (1) 247 (1,250) Total accumulated other comprehensive loss $ (1,462) $ (471) __________ (1) Amounts reclassified out of accumulated other comprehensive income/(loss) into interest expense.

Real Estate and Other Assets He

Real Estate and Other Assets Held For Sale	12 Months Ended
	Dec. 31, 2020
Discontinued Operations and Disposal Groups [Abstract]
Real Estate and Other Assets Held For Sale	Real Estate and Other Assets Held For Sale The following table sets forth the assets held for sale at December 31, 2020 and 2019, which are considered non-core: December 31, 2020 2019 Assets: Land $ 2,612 $ 4,815 Buildings and tenant improvements 12,238 29,581 Less-accumulated depreciation (3,577) (16,775) Net real estate assets 11,273 17,621 Accrued straight-line rents receivable — 2,073 Deferred leasing costs, net 87 1,096 Real estate and other assets, net, held for sale $ 11,360 $ 20,790

Earnings Per Share and Per Unit

Earnings Per Share and Per Unit	12 Months Ended
	Dec. 31, 2020
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, 2020 2019 2018 Earnings per Common Share - basic: Numerator: Net income $ 357,914 $ 141,683 $ 177,630 Net (income) attributable to noncontrolling interests in the Operating Partnership (9,338) (3,551) (4,588) Net (income) attributable to noncontrolling interests in consolidated affiliates (1,174) (1,214) (1,207) Dividends on Preferred Stock (2,488) (2,488) (2,492) Net income available for common stockholders $ 344,914 $ 134,430 $ 169,343 Denominator: Denominator for basic earnings per Common Share – weighted average shares (1) 103,876 103,692 103,439 Net income available for common stockholders $ 3.32 $ 1.30 $ 1.64 Earnings per Common Share - diluted: Numerator: Net income $ 357,914 $ 141,683 $ 177,630 Net (income) attributable to noncontrolling interests in consolidated affiliates (1,174) (1,214) (1,207) Dividends on Preferred Stock (2,488) (2,488) (2,492) Net income available for common stockholders before net (income) attributable to noncontrolling interests in the Operating Partnership $ 354,252 $ 137,981 $ 173,931 Denominator: Denominator for basic earnings per Common Share – weighted average shares (1) 103,876 103,692 103,439 Add: Stock options using the treasury method 8 22 33 Noncontrolling interests Common Units 2,830 2,731 2,796 Denominator for diluted earnings per Common Share – adjusted weighted average shares and assumed conversions 106,714 106,445 106,268 Net income available for common stockholders $ 3.32 $ 1.30 $ 1.64 __________ (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, 2020 2019 2018 Earnings per Common Unit - basic: Numerator: Net income $ 357,914 $ 141,683 $ 177,630 Net (income) attributable to noncontrolling interests in consolidated affiliates (1,174) (1,214) (1,207) Distributions on Preferred Units (2,488) (2,488) (2,492) Net income available for common unitholders $ 354,252 $ 137,981 $ 173,931 Denominator: Denominator for basic earnings per Common Unit – weighted average units (1) 106,297 106,014 105,826 Net income available for common unitholders $ 3.33 $ 1.30 $ 1.64 Earnings per Common Unit - diluted: Numerator: Net income $ 357,914 $ 141,683 $ 177,630 Net (income) attributable to noncontrolling interests in consolidated affiliates (1,174) (1,214) (1,207) Distributions on Preferred Units (2,488) (2,488) (2,492) Net income available for common unitholders $ 354,252 $ 137,981 $ 173,931 Denominator: Denominator for basic earnings per Common Unit – weighted average units (1) 106,297 106,014 105,826 Add: Stock options using the treasury method 8 22 33 Denominator for diluted earnings per Common Unit – adjusted weighted average units and assumed conversions 106,305 106,036 105,859 Net income available for common unitholders $ 3.33 $ 1.30 $ 1.64 __________ (1) Includes all unvested restricted stock where distributions on such restricted stock are non-forfeitable.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2020
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 $1.41, $1.44 and $1.26 per share in 2020, 2019 and 2018, respectively. Continued qualification as a REIT depends on the Company’s ability to satisfy the dividend distribution tests, stock ownership requirements and various other qualification tests. The tax basis of the Company’s assets (net of accumulated tax depreciation and amortization) and liabilities was approximately $4.7 billion and $2.8 billion, respectively, at December 31, 2020 and $4.7 billion and $2.9 billion, respectively, at December 31, 2019. The tax basis of the Operating Partnership’s assets (net of accumulated tax depreciation and amortization) and liabilities was approximately $4.6 billion and $2.8 billion, respectively, at December 31, 2020 and $4.7 billion and $2.9 billion, respectively, at December 31, 2019. During the years ended December 31, 2020, 2019 and 2018, the Company qualified as a REIT and incurred no federal income tax expense; accordingly, the only federal income taxes included in the accompanying Consolidated Financial Statements relate to activities of the Company’s taxable REIT subsidiary. The following table sets forth the Company’s income tax expense: Year Ended December 31, 2020 2019 2018 Current tax expense: Federal $ 110 $ 202 $ 133 State 240 148 112 350 350 245 Deferred tax expense/(benefit): Federal (9) 14 (95) State (4) (120) (68) (13) (106) (163) Total income tax expense $ 337 $ 244 $ 82 The Company’s net deferred tax liability was $0.1 million at both December 31, 2020 and 2019. The net deferred tax liability is comprised primarily of tax versus book differences related to property (depreciation, amortization and basis differences).

Segment Information

Segment Information	12 Months Ended
	Dec. 31, 2020
Segment Reporting [Abstract]
Segment Information	Segment Information Our principal business is the operation, acquisition and development of rental real estate properties. We evaluate our business by geographic location. The operating results by geographic grouping are regularly reviewed by our chief operating decision maker for assessing performance and other purposes. There are no material inter-segment transactions. Our accounting policies of the segments are the same as those used in our Consolidated Financial Statements. All operations are within the United States. The following tables summarize the rental and other revenues and net operating income, the primary industry property-level performance metric used by our chief operating decision maker and which is defined as rental and other revenues less rental property and other expenses, for each of our reportable segments. Our segment information as of December 31, 2019 and for the years ended December 31, 2019 and 2018 have been retrospectively revised from previously reported amounts to reflect a change in our reportable segments as a result of recent dispositions. Year Ended December 31, 2020 2019 2018 Rental and Other Revenues: Office: Atlanta $ 146,704 $ 151,279 $ 141,337 Charlotte 35,733 4,650 — Nashville 138,089 133,867 121,836 Orlando 49,459 52,679 53,771 Pittsburgh 58,518 60,755 61,177 Raleigh 128,189 122,173 118,352 Richmond 48,079 49,428 45,729 Tampa 99,520 86,431 102,404 Total Office Segment 704,291 661,262 644,606 Other 32,609 74,717 75,429 Total Rental and Other Revenues $ 736,900 $ 735,979 $ 720,035 Net Operating Income: Office: Atlanta $ 95,448 $ 97,019 $ 87,503 Charlotte 28,431 3,791 — Nashville 99,901 97,386 88,554 Orlando 29,546 32,062 32,841 Pittsburgh 35,631 36,249 36,233 Raleigh 95,926 88,402 86,053 Richmond 33,667 33,756 31,276 Tampa 67,059 50,339 65,819 Total Office Segment 485,609 439,004 428,279 Other 19,466 48,464 49,341 Total Net Operating Income 505,075 487,468 477,620 Reconciliation to net income: Depreciation and amortization (241,585) (254,504) (229,955) Impairments of real estate assets (1,778) (5,849) (423) General and administrative expenses (41,031) (44,067) (40,006) Interest expense (80,962) (81,648) (71,422) Other income/(loss) (1,707) (2,510) 1,940 Gains on disposition of property 215,897 39,517 37,638 Equity in earnings of unconsolidated affiliates 4,005 3,276 2,238 Net income $ 357,914 $ 141,683 $ 177,630 December 31, 2020 2019 Total Assets: Office: Atlanta $ 1,011,807 $ 1,040,869 Charlotte 443,051 425,045 Nashville 1,191,219 1,045,125 Orlando 289,129 289,743 Pittsburgh 313,783 323,792 Raleigh 839,831 830,128 Richmond 240,976 246,546 Tampa 556,951 521,620 Total Office Segment 4,886,747 4,722,868 Other 322,670 415,376 Total Assets $ 5,209,417 $ 5,138,244

Quarterly Financial Data (Unaud

Quarterly Financial Data (Unaudited)	12 Months Ended
	Dec. 31, 2020
Quarterly Financial Data [Abstract]
Quarterly Financial Data (Unaudited)	Quarterly Financial Data (Unaudited) The following tables set forth quarterly financial information of the Company: Year Ended December 31, 2020 First Second Third Fourth Total Rental and other revenues $ 192,800 $ 183,153 $ 181,043 $ 179,904 $ 736,900 Net income 191,340 38,956 42,331 85,287 357,914 Net (income) attributable to noncontrolling interests in the Operating Partnership (4,960) (1,017) (1,107) (2,254) (9,338) Net (income) attributable to noncontrolling interests in consolidated affiliates (285) (289) (298) (302) (1,174) Dividends on Preferred Stock (622) (622) (622) (622) (2,488) Net income available for common stockholders $ 185,473 $ 37,028 $ 40,304 $ 82,109 $ 344,914 Earnings per Common Share – basic: Net income available for common stockholders $ 1.79 $ 0.36 $ 0.39 $ 0.79 $ 3.32 Earnings per Common Share – diluted: Net income available for common stockholders $ 1.79 $ 0.36 $ 0.39 $ 0.79 $ 3.32 Year Ended December 31, 2019 First Second Third Fourth Total Rental and other revenues $ 172,363 $ 184,070 $ 187,475 $ 192,071 $ 735,979 Net income 8,386 41,394 29,557 62,346 141,683 Net (income) attributable to noncontrolling interests in the Operating Partnership (193) (1,044) (737) (1,577) (3,551) Net (income) attributable to noncontrolling interests in consolidated affiliates (316) (306) (297) (295) (1,214) Dividends on Preferred Stock (622) (622) (622) (622) (2,488) Net income available for common stockholders $ 7,255 $ 39,422 $ 27,901 $ 59,852 $ 134,430 Earnings per Common Share – basic: Net income available for common stockholders $ 0.07 $ 0.38 $ 0.27 $ 0.58 $ 1.30 Earnings per Common Share – diluted: Net income available for common stockholders $ 0.07 $ 0.38 $ 0.27 $ 0.58 $ 1.30 The following tables set forth quarterly financial information of the Operating Partnership: Year Ended December 31, 2020 First Second Third Fourth Total Rental and other revenues $ 192,800 $ 183,153 $ 181,043 $ 179,904 $ 736,900 Net income 191,340 38,956 42,331 85,287 357,914 Net (income) attributable to noncontrolling interests in consolidated affiliates (285) (289) (298) (302) (1,174) Distributions on Preferred Units (622) (622) (622) (622) (2,488) Net income available for common unitholders $ 190,433 $ 38,045 $ 41,411 $ 84,363 $ 354,252 Earnings per Common Unit – basic: Net income available for common unitholders $ 1.79 $ 0.36 $ 0.39 $ 0.79 $ 3.33 Earnings per Common Unit – diluted: Net income available for common unitholders $ 1.79 $ 0.36 $ 0.39 $ 0.79 $ 3.33 Year Ended December 31, 2019 First Second Third Fourth Total Rental and other revenues $ 172,363 $ 184,070 $ 187,475 $ 192,071 $ 735,979 Net income 8,386 41,394 29,557 62,346 141,683 Net (income) attributable to noncontrolling interests in consolidated affiliates (316) (306) (297) (295) (1,214) Distributions on Preferred Units (622) (622) (622) (622) (2,488) Net income available for common unitholders $ 7,448 $ 40,466 $ 28,638 $ 61,429 $ 137,981 Earnings per Common Unit – basic: Net income available for common unitholders $ 0.07 $ 0.38 $ 0.27 $ 0.58 $ 1.30 Earnings per Common Unit – diluted: Net income available for common unitholders $ 0.07 $ 0.38 $ 0.27 $ 0.58 $ 1.30

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2020
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On January 15, 2021, we sold a building in Atlanta for a sale price of $30.7 million and expect to record a gain on disposition of property of $18.9 million. On January 21, 2021, we acquired our joint venture partner’s 75.0% interest in 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 expect to allocate our previously held equity interest at historical cost along with the consideration paid and acquisition costs to the assets acquired and liabilities assumed. On February 2, 2021, the Company declared a cash dividend of $0.48 per share of Common Stock, which is payable on March 9, 2021 to stockholders of record as of February 16, 2021. See also Note 8 for information regarding the potential impact of the COVID-19 pandemic in future periods. The severity and duration of the COVID-19 pandemic and the resulting economic recession and the future demand for office space over the long-term are difficult to predict and could materially and adversely impact or disrupt our financial condition, results of operations, cash flows and performance.

Schedule III

Schedule III	12 Months Ended
	Dec. 31, 2020
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, 2020 2019 2018 Real estate assets: Beginning balance $ 5,776,804 $ 5,296,551 $ 5,173,754 Acquisitions, development and improvements 259,470 677,842 274,863 Cost of real estate sold and retired (441,441) (197,589) (152,066) Ending balance (a) $ 5,594,833 $ 5,776,804 $ 5,296,551 Accumulated depreciation: Beginning balance $ 1,405,341 $ 1,296,562 $ 1,211,728 Depreciation expense 204,585 214,682 191,035 Real estate sold and retired (187,970) (105,903) (106,201) Ending balance (b) $ 1,421,956 $ 1,405,341 $ 1,296,562 (a) Reconciliation of total real estate assets to balance sheet caption: 2020 2019 2018 Total per Schedule III $ 5,594,833 $ 5,776,804 $ 5,296,551 Development in-process exclusive of land included in Schedule III 259,681 172,706 165,537 Real estate assets, net, held for sale (14,850) (34,396) — Total real estate assets $ 5,839,664 $ 5,915,114 $ 5,462,088 (b) Reconciliation of total accumulated depreciation to balance sheet caption: 2020 2019 2018 Total per Schedule III $ 1,421,956 $ 1,405,341 $ 1,296,562 Real estate assets, net, held for sale (3,577) (16,775) — Total accumulated depreciation $ 1,418,379 $ 1,388,566 $ 1,296,562
Real Estate and Accumulated Depreciation Disclosure	(in thousands) December 31, 2020 Initial Costs Costs Capitalized Gross Value at Close of Period Description Property 2020 Land Bldg & Land Bldg & Land Bldg & Total Accumulated Date of Life on Atlanta, GA 1700 Century Circle Office $ — $ 2,482 $ 2 $ 1,478 $ 2 $ 3,960 $ 3,962 $ 1,925 1983 5-40 yrs. 1800 Century Boulevard Office 1,444 29,081 — 11,265 1,444 40,346 41,790 24,040 1975 5-40 yrs. 1825 Century Boulevard Office 864 — 303 15,166 1,167 15,166 16,333 6,729 2002 5-40 yrs. 1875 Century Boulevard Office — 8,924 — 8,329 — 17,253 17,253 8,706 1976 5-40 yrs. 1900 Century Boulevard Office — 4,744 — 710 — 5,454 5,454 5,341 1971 5-40 yrs. 2200 Century Parkway Office — 14,432 — 9,059 — 23,491 23,491 11,732 1971 5-40 yrs. 2400 Century Parkway Office — — 406 14,776 406 14,776 15,182 7,686 1998 5-40 yrs. 2500 Century Parkway Office — — 328 12,684 328 12,684 13,012 4,589 2005 5-40 yrs. 2500/2635 Parking Garage Office — — — 6,447 — 6,447 6,447 2,424 2005 5-40 yrs. 2600 Century Parkway Office — 10,679 — 4,244 — 14,923 14,923 7,898 1973 5-40 yrs. 2635 Century Parkway Office — 21,643 — 20,514 — 42,157 42,157 18,043 1980 5-40 yrs. 2800 Century Parkway Office — 20,449 — 10,653 — 31,102 31,102 17,782 1983 5-40 yrs. 50 Glenlake Office 2,500 20,006 — 4,308 2,500 24,314 26,814 13,172 1997 5-40 yrs. Century Plaza I Office 1,290 8,567 — 5,022 1,290 13,589 14,879 6,872 1981 5-40 yrs. Century Plaza II Office 1,380 7,733 — 3,108 1,380 10,841 12,221 5,559 1984 5-40 yrs. 5405 Windward Parkway Office 3,342 32,111 — 19,729 3,342 51,840 55,182 26,543 1998 5-40 yrs. Riverpoint - Land Industrial 7,250 — (4,439) 718 2,811 718 3,529 185 N/A 5-40 yrs. Riverwood 100 Office 5,785 64,913 (29) 26,071 5,756 90,984 96,740 23,842 1989 5-40 yrs. Tradeport - Land Industrial 5,243 — (4,819) — 424 — 424 — N/A N/A Two Alliance Center Office 9,579 125,549 — 906 9,579 126,455 136,034 33,618 2009 5-40 yrs. One Alliance Center Office 14,775 123,071 — 17,587 14,775 140,658 155,433 32,298 2001 5-40 yrs. 10 Glenlake North Office 5,349 26,334 — 11,303 5,349 37,637 42,986 10,897 2000 5-40 yrs. 10 Glenlake South Office 5,103 22,811 — 3,523 5,103 26,334 31,437 7,056 1999 5-40 yrs. Riverwood 200 Office 4,777 89,708 450 2,905 5,227 92,613 97,840 11,172 2017 5-40 yrs. Riverwood 300 - Land Office 400 — — 710 400 710 1,110 70 N/A 5-40 yrs. Monarch Tower Office 22,717 143,068 — 17,074 22,717 160,142 182,859 25,234 1997 5-40 yrs. Monarch Plaza Office 27,678 88,962 — 11,147 27,678 100,109 127,787 15,755 1983 5-40 yrs. Charlotte, NC Bank of America Tower Office 29,273 354,749 — 20,087 29,273 374,836 404,109 12,090 2019 5-40 yrs. Initial Costs Costs Capitalized Gross Value at Close of Period Description Property 2020 Land Bldg & Land Bldg & Land Bldg & Total Accumulated Date of Life on Nashville, TN 3322 West End Office 3,025 27,490 — 11,806 3,025 39,296 42,321 18,539 1986 5-40 yrs. 3401 West End Office 5,862 22,917 — 6,566 5,862 29,483 35,345 16,114 1982 5-40 yrs. 5310 Maryland Way Office 1,863 7,201 — 3,809 1,863 11,010 12,873 6,540 1994 5-40 yrs. Cool Springs I & II Deck Office — — — 3,990 — 3,990 3,990 1,314 2007 5-40 yrs. Cool Springs III & IV Deck Office — — — 4,463 — 4,463 4,463 1,535 2007 5-40 yrs. Cool Springs I Office 1,583 — 15 15,891 1,598 15,891 17,489 7,396 1999 5-40 yrs. Cool Springs II Office 1,824 — 346 24,705 2,170 24,705 26,875 10,089 1999 5-40 yrs. Cool Springs III Office 1,631 — 804 16,241 2,435 16,241 18,676 5,698 2006 5-40 yrs. Cool Springs IV Office 1,715 — — 19,221 1,715 19,221 20,936 6,131 2008 5-40 yrs. Cool Springs V (Healthways) Office 3,688 — 295 53,100 3,983 53,100 57,083 23,044 2007 5-40 yrs. Harpeth On The Green II Office 1,419 5,677 — 3,216 1,419 8,893 10,312 4,607 1984 5-40 yrs. Harpeth On The Green III Office 1,660 6,649 — 2,263 1,660 8,912 10,572 5,015 1987 5-40 yrs. Harpeth On The Green IV Office 1,713 6,842 — 3,171 1,713 10,013 11,726 5,598 1989 5-40 yrs. Harpeth On The Green V Office 662 — 197 5,795 859 5,795 6,654 2,686 1998 5-40 yrs. Hickory Trace Office 1,164 — 164 6,111 1,328 6,111 7,439 2,474 2001 5-40 yrs. Highwoods Plaza I Office 1,552 — 307 9,951 1,859 9,951 11,810 5,020 1996 5-40 yrs. Highwoods Plaza II Office 1,448 — 307 9,600 1,755 9,600 11,355 4,988 1997 5-40 yrs. Seven Springs I Office 2,076 — 592 13,216 2,668 13,216 15,884 5,916 2002 5-40 yrs. SouthPointe Office 1,655 — 310 9,430 1,965 9,430 11,395 4,107 1998 5-40 yrs. Ramparts Office 2,394 12,806 — 10,313 2,394 23,119 25,513 9,057 1986 5-40 yrs. Westwood South Office 2,106 — 382 12,317 2,488 12,317 14,805 6,168 1999 5-40 yrs. 100 Winners Circle Office 1,497 7,258 — 2,760 1,497 10,018 11,515 5,121 1987 5-40 yrs. The Pinnacle at Symphony Place Office 93,350 — 141,469 — 6,406 — 147,875 147,875 36,904 2010 5-40 yrs. Seven Springs East (LifePoint) Office 2,525 37,587 — 192 2,525 37,779 40,304 8,512 2013 5-40 yrs. The Shops at Seven Springs Office 803 8,223 — 581 803 8,804 9,607 2,604 2013 5-40 yrs. Seven Springs West Office 2,439 51,306 — 1,995 2,439 53,301 55,740 7,947 2016 5-40 yrs. Seven Springs II Office 2,356 30,048 — 3,011 2,356 33,059 35,415 4,058 2017 5-40 yrs. Bridgestone Tower Office 19,223 169,582 — 110 19,223 169,692 188,915 16,369 2017 5-40 yrs. Virginia Springs II Office — — 4,821 21,578 4,821 21,578 26,399 70 2020 5-40 yrs. MARS Campus Office 7,010 87,474 — 32 7,010 87,506 94,516 5,505 2019 5-40 yrs. 5501 Virginia Way Office 4,534 25,632 — 274 4,534 25,906 30,440 1,775 2018 5-40 yrs. 1100 Broadway - Land Office 29,845 — — — 29,845 — 29,845 — N/A N/A Ovation - Land Office 31,063 — 104 — 31,167 — 31,167 — N/A N/A Initial Costs Costs Capitalized Gross Value at Close of Period Description Property 2020 Land Bldg & Land Bldg & Land Bldg & Total Accumulated Date of Life on Broadway Stem - Land Office — — 6,218 — 6,218 — 6,218 — N/A N/A Orlando, FL Capital Plaza Three - Land Office 2,994 — 18 — 3,012 — 3,012 — N/A N/A Eola Park - Land Office 2,027 — — — 2,027 — 2,027 — N/A N/A The 1800 Eller Drive Building Office — 9,851 — 3,526 — 13,377 13,377 9,158 1983 5-40 yrs. Seaside Plaza Office 3,893 29,541 — 10,104 3,893 39,645 43,538 8,963 1982 5-40 yrs. Capital Plaza Two Office 4,346 43,394 — 8,433 4,346 51,827 56,173 12,253 1999 5-40 yrs. Capital Plaza One Office 3,482 27,321 — 7,668 3,482 34,989 38,471 7,387 1975 5-40 yrs. Landmark Center Two Office 4,743 22,031 — 9,352 4,743 31,383 36,126 7,595 1985 5-40 yrs. Landmark Center One Office 6,207 22,655 — 10,026 6,207 32,681 38,888 7,556 1983 5-40 yrs. 300 South Orange Office 3,490 56,079 — 10,243 3,490 66,322 69,812 12,867 2000 5-40 yrs. Eola Centre Office 3,758 11,160 — 12,739 3,758 23,899 27,657 3,710 1969 5-40 yrs. Pittsburgh, PA One PPG Place Office 9,819 107,643 — 51,500 9,819 159,143 168,962 51,382 1983-1985 5-40 yrs. Two PPG Place Office 2,302 10,978 — 10,655 2,302 21,633 23,935 5,670 1983-1985 5-40 yrs. Three PPG Place Office 501 2,923 — 4,680 501 7,603 8,104 2,737 1983-1985 5-40 yrs. Four PPG Place Office 620 3,239 — 3,675 620 6,914 7,534 2,220 1983-1985 5-40 yrs. Five PPG Place Office 803 4,924 — 3,168 803 8,092 8,895 2,828 1983-1985 5-40 yrs. Six PPG Place Office 3,353 25,602 — 15,502 3,353 41,104 44,457 11,416 1983-1985 5-40 yrs. EQT Plaza Office 16,457 83,812 — 15,175 16,457 98,987 115,444 25,863 1987 5-40 yrs. East Liberty - Land Office 2,478 — — — 2,478 — 2,478 — N/A N/A Raleigh, NC 3600 Glenwood Avenue Office — 10,994 — 4,948 — 15,942 15,942 8,885 1986 5-40 yrs. 3737 Glenwood Avenue Office — — 318 17,281 318 17,281 17,599 8,596 1999 5-40 yrs. 4800 North Park Office 2,678 17,630 — 10,224 2,678 27,854 30,532 16,546 1985 5-40 yrs. 5000 North Park Office 1,010 4,612 (49) 2,674 961 7,286 8,247 4,078 1980 5-40 yrs. 801 Raleigh Corporate Center Office 828 — 272 11,233 1,100 11,233 12,333 4,604 2002 5-40 yrs. 2500 Blue Ridge Road Office 722 4,606 — 1,497 722 6,103 6,825 3,844 1982 5-40 yrs. 2418 Blue Ridge Road Office 462 1,410 — 2,718 462 4,128 4,590 1,623 1988 5-40 yrs. Cape Fear Office 131 1,630 (2) (1,004) 129 626 755 382 1979 5-40 yrs. Catawba - Land Office 125 1,635 (2) (1,635) 123 — 123 — N/A N/A 2000 CentreGreen Office 1,529 — (391) 12,445 1,138 12,445 13,583 4,544 2000 5-40 yrs. 4000 CentreGreen Office 1,653 — (389) 11,339 1,264 11,339 12,603 5,202 2001 5-40 yrs. 5000 CentreGreen Office 1,291 34,572 — 2,875 1,291 37,447 38,738 4,997 2017 5-40 yrs. Initial Costs Costs Capitalized Gross Value at Close of Period Description Property 2020 Land Bldg & Land Bldg & Land Bldg & Total Accumulated Date of Life on 3000 CentreGreen Office 1,779 — (397) 14,505 1,382 14,505 15,887 4,860 2002 5-40 yrs. 1000 CentreGreen Office 1,280 — 55 12,888 1,335 12,888 14,223 3,736 2008 5-40 yrs. Cottonwood Office 609 3,244 — 437 609 3,681 4,290 2,435 1983 5-40 yrs. GlenLake - Land Office 13,003 — (9,924) 114 3,079 114 3,193 56 N/A 5-40 yrs. GlenLake One Office 924 — 1,324 22,714 2,248 22,714 24,962 10,176 2002 5-40 yrs. GlenLake Four Office 1,659 — 493 20,311 2,152 20,311 22,463 7,243 2006 5-40 yrs. GlenLake Six Office 941 — (365) 20,118 576 20,118 20,694 6,532 2008 5-40 yrs. 701 Raleigh Corporate Center Office 1,304 — 540 17,337 1,844 17,337 19,181 8,802 1996 5-40 yrs. Highwoods Centre Office 531 — (267) 7,981 264 7,981 8,245 4,290 1998 5-40 yrs. Inveresk Parcel 2 - Land Office 657 — 38 103 695 103 798 14 N/A 5-40 yrs. 4201 Lake Boone Trail Office 1,450 6,311 — 684 1,450 6,995 8,445 1,998 1998 5-40 yrs. 4620 Creekstone Drive Office 149 — 107 3,380 256 3,380 3,636 1,511 2001 5-40 yrs. 4825 Creekstone Drive Office 398 — 293 10,478 691 10,478 11,169 5,269 1999 5-40 yrs. Pamlico Office 289 — — 9,188 289 9,188 9,477 7,209 1980 5-40 yrs. 751 Corporate Center Office 2,665 16,939 — — 2,665 16,939 19,604 1,817 2018 5-40 yrs. PNC Plaza Office 1,206 — — 70,389 1,206 70,389 71,595 24,643 2008 5-40 yrs. 4301 Lake Boone Trail Office 878 3,730 — 2,405 878 6,135 7,013 3,896 1990 5-40 yrs. 4207 Lake Boone Trail Office 362 1,818 — 1,407 362 3,225 3,587 2,130 1993 5-40 yrs. 2301 Rexwoods Drive Office 919 2,816 — 1,650 919 4,466 5,385 2,769 1992 5-40 yrs. 4325 Lake Boone Trail Office 586 — — 4,872 586 4,872 5,458 2,764 1995 5-40 yrs. 2300 Rexwoods Drive Office 1,301 — 184 8,129 1,485 8,129 9,614 2,938 1998 5-40 yrs. 4709 Creekstone Drive Office 469 4,038 23 5,383 492 9,421 9,913 3,081 1987 5-40 yrs. 4700 Six Forks Road Office 666 2,665 — 1,180 666 3,845 4,511 2,356 1982 5-40 yrs. 4700 Homewood Court Office 1,086 4,533 — 2,078 1,086 6,611 7,697 3,925 1983 5-40 yrs. 4800 Six Forks Road Office 862 4,411 — 3,433 862 7,844 8,706 4,401 1987 5-40 yrs. Smoketree Tower Office 2,353 11,743 — 6,818 2,353 18,561 20,914 10,951 1984 5-40 yrs. 4601 Creekstone Drive Office 255 — 217 6,221 472 6,221 6,693 3,545 1997 5-40 yrs. Weston - Land Office 22,771 — (19,894) — 2,877 — 2,877 — N/A N/A 4625 Creekstone Drive Office 458 — 268 6,122 726 6,122 6,848 3,621 1995 5-40 yrs. 11000 Weston Parkway Office 2,651 18,850 — 15,357 2,651 34,207 36,858 6,014 1998 5-40 yrs. GlenLake Five Office 2,263 30,264 — 3,693 2,263 33,957 36,220 8,605 2014 5-40 yrs. 11800 Weston Parkway Office 826 13,188 — 13 826 13,201 14,027 2,836 2014 5-40 yrs. CentreGreen Café Office 41 3,509 — (2) 41 3,507 3,548 533 2014 5-40 yrs. CentreGreen Fitness Center Office 27 2,322 — (1) 27 2,321 2,348 353 2014 5-40 yrs. Initial Costs Costs Capitalized Gross Value at Close of Period Description Property 2020 Land Bldg & Land Bldg & Land Bldg & Total Accumulated Date of Life on One City Plaza Office 11,288 68,375 — 26,766 11,288 95,141 106,429 20,423 1986 5-40 yrs. Edison - Land Office 5,984 — 2,196 — 8,180 — 8,180 — N/A N/A Charter Square Office 7,267 65,881 — 4,913 7,267 70,794 78,061 10,208 2015 5-40 yrs. MetLife Global Technology Campus Office 21,580 149,889 — (153) 21,580 149,736 171,316 19,477 2015 5-40 yrs. GlenLake Seven Office — — 1,662 34,077 1,662 34,077 35,739 435 2020 5-40 yrs. Hargett - Land Office 6,582 — 2,816 — 9,398 — 9,398 — N/A N/A Other Property Other 27,260 20,868 (6,084) 96,118 21,176 116,986 138,162 50,227 N/A 5-40 yrs. Richmond, VA 4900 Cox Road Office 1,324 5,311 15 3,731 1,339 9,042 10,381 5,460 1991 5-40 yrs. Colonnade Building Office 1,364 6,105 — 2,462 1,364 8,567 9,931 3,885 2003 5-40 yrs. Dominion Place - Pitts Parcel - Land Office 1,101 — (404) — 697 — 697 — N/A N/A Markel 4521 Office 1,581 13,299 168 (396) 1,749 12,903 14,652 6,260 1999 5-40 yrs. Hamilton Beach Office 1,086 4,345 10 2,997 1,096 7,342 8,438 3,849 1986 5-40 yrs. Highwoods Commons Office 521 — 458 4,651 979 4,651 5,630 2,261 1999 5-40 yrs. Highwoods One Office 1,688 — 22 14,116 1,710 14,116 15,826 7,416 1996 5-40 yrs. Highwoods Two Office 786 — 226 10,292 1,012 10,292 11,304 3,936 1997 5-40 yrs. Highwoods Five Office 783 — 11 8,000 794 8,000 8,794 3,744 1998 5-40 yrs. Highwoods Plaza Office 909 — 187 5,897 1,096 5,897 6,993 2,865 2000 5-40 yrs. Innslake Center Office 845 — 195 8,023 1,040 8,023 9,063 3,527 2001 5-40 yrs. Highwoods Centre Office 1,205 4,825 — 1,967 1,205 6,792 7,997 3,505 1990 5-40 yrs. Markel 4501 Office 1,300 13,259 213 (3,367) 1,513 9,892 11,405 4,039 1998 5-40 yrs. 4600 Cox Road Office 1,700 17,081 169 (3,450) 1,869 13,631 15,500 5,576 1989 5-40 yrs. North Park Office 2,163 8,659 6 3,666 2,169 12,325 14,494 6,976 1989 5-40 yrs. North Shore Commons I Office 951 — 137 12,624 1,088 12,624 13,712 6,525 2002 5-40 yrs. North Shore Commons II Office 2,067 — (89) 10,848 1,978 10,848 12,826 3,873 2007 5-40 yrs. North Shore Commons C - Land Office 1,497 — 55 10 1,552 10 1,562 1 N/A 5-40 yrs. North Shore Commons D - Land Office 1,261 — — — 1,261 — 1,261 — N/A N/A Nuckols Corner - Land Office 1,259 — 231 — 1,490 — 1,490 — N/A N/A One Shockoe Plaza Office — — 356 21,530 356 21,530 21,886 10,372 1996 5-40 yrs. Pavilion - Land Office 181 46 (181) (46) — — — — N/A N/A Lake Brook Commons Office 1,600 8,864 21 2,877 1,621 11,741 13,362 5,503 1996 5-40 yrs. Sadler & Cox - Land Office 1,535 — 343 — 1,878 — 1,878 — N/A N/A Highwoods Three Office 1,918 — 358 12,128 2,276 12,128 14,404 4,345 2005 5-40 yrs. Stony Point VI (Virginia Urology) Office 1,925 25,868 — (2) 1,925 25,866 27,791 2,059 2018 5-40 yrs. Initial Costs Costs Capitalized Gross Value at Close of Period Description Property 2020 Land Bldg & Land Bldg & Land Bldg & Total Accumulated Date of Life on Stony Point I Office 1,384 11,630 (267) 4,115 1,117 15,745 16,862 8,432 1990 5-40 yrs. Stony Point II Office 1,240 — 103 13,296 1,343 13,296 14,639 6,534 1999 5-40 yrs. Stony Point III Office 995 — — 10,762 995 10,762 11,757 5,361 2002 5-40 yrs. Stony Point IV Office 955 — — 12,057 955 12,057 13,012 4,467 2006 5-40 yrs. Virginia Mutual Office 1,301 6,036 15 1,201 1,316 7,237 8,553 3,639 1996 5-40 yrs. Waterfront Plaza Office 585 2,347 8 2,291 593 4,638 5,231 2,157 1988 5-40 yrs. Innsbrook Centre Office 914 8,249 — 1,126 914 9,375 10,289 4,093 1987 5-40 yrs. Elks Pass - Land Office 3,326 — — — 3,326 — 3,326 — N/A N/A Tampa, FL Meridian Three Office 2,673 16,470 — 5,930 2,673 22,400 25,073 7,048 1989 5-40 yrs. Bayshore Place Office 2,276 11,817 — 3,632 2,276 15,449 17,725 7,269 1990 5-40 yrs. 5525 Gray Street Office 4,054 — 406 23,977 4,460 23,977 28,437 8,606 2005 5-40 yrs. Highwoods Preserve Building V Office 881 — — 25,368 881 25,368 26,249 11,031 2001 5-40 yrs. Highwoods Bay Center I Office 3,565 — (64) 38,263 3,501 38,263 41,764 12,745 2007 5-40 yrs. HIW Bay Center II - Land Office 3,482 — — — 3,482 — 3,482 — N/A N/A Highwoods Preserve Building VII Office 790 — — 16,996 790 16,996 17,786 4,481 2007 5-40 yrs. HIW Preserve VII Garage Office — — — 6,932 — 6,932 6,932 2,367 2007 5-40 yrs. Horizon Office — 6,257 — 4,443 — 10,700 10,700 5,546 1980 5-40 yrs. LakePointe One Office 2,106 89 — 41,475 2,106 41,564 43,670 23,659 1986 5-40 yrs. LakePointe Two Office 2,000 15,848 672 15,211 2,672 31,059 33,731 15,976 1999 5-40 yrs. Lakeside Office — 7,369 — 7,726 — 15,095 15,095 7,504 1978 5-40 yrs. Lakeside/Parkside Garage Office — — — 5,732 — 5,732 5,732 2,455 2004 5-40 yrs. One Harbour Place Office 2,016 25,252 — 16,693 2,016 41,945 43,961 18,333 1985 5-40 yrs. Parkside Office — 9,407 — 3,231 — 12,638 12,638 6,111 1979 5-40 yrs. Pavilion Office — 16,394 — 6,071 — 22,465 22,465 12,081 1982 5-40 yrs. Pavilion Parking Garage Office — — — 5,801 — 5,801 5,801 3,038 1999 5-40 yrs. Spectrum Office 1,454 14,502 — 4,751 1,454 19,253 20,707 10,099 1984 5-40 yrs. Tower Place Office 3,218 19,898 — 6,948 3,218 26,846 30,064 14,011 1988 5-40 yrs. Westshore Square Office 1,126 5,186 — 1,706 1,126 6,892 8,018 3,687 1976 5-40 yrs. Independence Park - Land Office 4,943 — 5,058 2,227 10,001 2,227 12,228 214 N/A 5-40 yrs. Independence One Office 2,531 4,526 — 5,741 2,531 10,267 12,798 5,104 1983 5-40 yrs. Meridian One Office 1,849 22,363 — 3,187 1,849 25,550 27,399 6,028 1984 5-40 yrs. Meridian Two Office 1,302 19,588 — 5,425 1,302 25,013 26,315 6,064 1986 5-40 yrs. 5332 Avion Drive Office — — 6,310 39,358 6,310 39,358 45,668 3,937 2016 5-40 yrs. Initial Costs Costs Capitalized Gross Value at Close of Period Description Property 2020 Land Bldg & Land Bldg & Land Bldg & Total Accumulated Date of Life on Suntrust Financial Centre Office 1,980 102,138 — 25,020 1,980 127,158 129,138 20,758 1992 5-40 yrs. Suntrust Financial - Land Office 2,225 — — — 2,225 — 2,225 — N/A N/A $ 606,086 $ 3,274,841 $ (5,128) $ 1,719,034 $ 600,958 $ 4,993,875 $ 5,594,833 $ 1,421,956 __________

Description of Business and S_2

Description of Business and Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation Our Consolidated Financial Statements are prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”). The Company’s Consolidated Financial Statements include the Operating Partnership, wholly owned subsidiaries and those entities in which the Company has the controlling interest. The Operating Partnership’s Consolidated Financial Statements include wholly owned subsidiaries and those entities in which the Operating Partnership has the controlling interest. We consolidate joint venture investments, such as interests in partnerships and limited liability companies, when we control the major operating and financial policies of the investment through majority ownership, in our capacity as a general partner or managing member or through some other contractual right. At December 31, 2020, three properties owned through a joint venture investment were consolidated. We also consolidate those entities deemed to be variable interest entities in which we are determined to be the primary beneficiary. At December 31, 2020, we have involvement with, and are the primary beneficiary in, an entity that we concluded to be a variable interest entity (see Note 4). In addition, during 2019, we acquired a building using a special purpose entity owned by a qualified intermediary to facilitate a potential Section 1031 reverse exchange under the Internal Revenue Code. We determined that this entity was a variable interest entity of which we were the primary beneficiary and therefore, we consolidated this entity as of December 31, 2019. During 2020, we completed the exchange by acquiring 100% of the special purpose entity. All intercompany transactions and accounts have been eliminated. Certain amounts within the Consolidated Statements of Income for the year ended December 31, 2018 were removed and/or combined to conform to the current year presentation.
Use of Estimates	Use of Estimates The preparation of consolidated financial statements in accordance with GAAP requires us to make estimates and assumptions that affect the amounts reported in our Consolidated Financial Statements and accompanying notes. Actual results could differ from those estimates.
Insurance	Insurance We are primarily self-insured for health care claims for participating employees. We have stop-loss coverage to limit our exposure to significant claims on a per claim and annual aggregate basis. We determine our liabilities for claims, including incurred but not reported losses, based on all relevant information, including actuarial estimates of claim liabilities. At December 31, 2020, 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 three Expenditures directly related to the development and construction of real estate assets are included in net real estate assets and are stated at depreciated cost. Development expenditures include pre-construction costs essential to the development of properties, development and construction costs, interest costs on qualifying assets, real estate taxes, development personnel salaries and related costs and other costs incurred during the period of development. Interest and other carrying costs are capitalized until the building is ready for its intended use, but not later than a year from cessation of major construction activity. We consider a construction project as substantially completed and ready for its intended use upon the completion of tenant improvements. We cease capitalization on the portion that is substantially completed and occupied or held available for occupancy and capitalize only those costs associated with the portion under construction. We record liabilities for the performance of asset retirement activities when the obligation to perform such activities is probable even when uncertainty exists about the timing and/or method of settlement. Upon the acquisition of real estate assets accounted for as asset acquisitions, we assess the fair value of acquired tangible assets such as land, buildings and tenant improvements, intangible assets and liabilities such as above and below market leases, acquired in-place leases and other identifiable intangible assets and assumed liabilities. We allocate fair value on a relative basis based on estimated cash flow projections that utilize discount and/or capitalization rates as well as available market information. The fair value of the tangible assets of an acquired property considers the value of the property as if it were vacant. The above and below market rate portions of leases acquired in connection with property acquisitions are recorded in deferred leasing costs and in accounts payable, accrued expenses and other liabilities, respectively, at fair value and amortized into rental revenue over the remaining term of the respective leases as described below. Fair value is calculated as the present value of the difference between (1) the contractual amounts to be paid pursuant to each in-place lease and (2) our estimate of fair market lease rates for each corresponding in-place lease, using a discount rate that reflects the risks associated with the leases acquired and measured over a period equal to the remaining initial term of the lease for above-market leases and the remaining initial term plus the term of any renewal option that the customer would be economically compelled to exercise for below-market leases. In-place leases acquired are recorded at fair value in deferred leasing costs and amortized to depreciation and amortization expense over the remaining term of the respective lease. The value of in-place leases is based on our evaluation of the specific characteristics of each customer’s lease. Factors considered include estimates of carrying costs during hypothetical expected lease-up periods, current market conditions, the customer’s credit quality and costs to execute similar leases. In estimating carrying costs, we include real estate taxes, insurance and other operating expenses and estimates of lost rentals at market rates during the expected lease-up periods, depending on local market conditions. In estimating costs to execute similar leases, we consider tenant improvements, leasing commissions and legal and other related expenses.
Impairments of Real Estate Assets and Investments in Unconsolidated Affiliates	Impairments of Real Estate Assets and Investments in Unconsolidated Affiliates With respect to assets classified as held for use, we perform an impairment analysis if our evaluation of events or changes in circumstances indicate that the carrying value may not be recoverable, such as a significant decline in occupancy, identification of materially adverse legal or environmental factors, change in our designation of an asset from core to non-core, which may impact the anticipated holding period, or a decline in market value to an amount less than cost. This analysis is generally performed at the property level, except when an asset is part of an interdependent group such as an office park, and consists of determining whether the asset’s carrying amount will be recovered from its undiscounted estimated future operating and residual cash flows. These cash flows are estimated based on a number of assumptions that are subject to economic and market uncertainties including, among others, demand for space, competition for customers, changes in market rental rates, costs to operate each property and expected ownership periods. For properties under development, the cash flows are based on expected service potential of the asset or asset group when development is substantially complete. If the carrying amount of a held for use asset exceeds the sum of its undiscounted future operating and residual cash flows, an impairment loss is recorded for the difference between estimated fair value of the asset and the carrying amount. We generally estimate the fair value of assets held for use by using discounted cash flow analyses. In some instances, appraisal information may be available and is used in addition to a discounted cash flow analysis. As the factors used in generating these cash flows are difficult to predict and are subject to future events that may alter our assumptions, the discounted and/or undiscounted future operating and residual cash flows estimated by us in our impairment analyses or those established by appraisal may not be achieved and we may be required to recognize future impairment losses on properties held for use. We record assets held for sale at the lower of the carrying amount or estimated fair value. Fair value of assets held for sale is equal to the estimated or contracted sales price with a potential buyer, less costs to sell. The impairment loss is the amount by which the carrying amount exceeds the estimated fair value. We also analyze our investments in unconsolidated affiliates for impairment. This analysis consists of determining whether an expected loss in market value of an investment is other than temporary by evaluating the length of time and the extent to which the market value has been less than cost, the financial condition and near-term prospects of the investment, and our intent and ability to retain our investment for a period of time sufficient to allow for any anticipated recovery in market value. As the factors used in this analysis are difficult to predict and are subject to future events that may alter our assumptions, we may be required to recognize future impairment losses on our investments in unconsolidated affiliates.
Sales of Real Estate	Sales of Real Estate For sales of real estate where we have collected the consideration to which we are entitled in exchange for transferring the real estate, the related assets and liabilities are removed from the balance sheet and the resultant gain or loss is recorded in the period the transaction closes. Any post-sale involvement is accounted for as separate performance obligations and when the separate performance obligations are satisfied, the sales price allocated to each is recognized.
Discontinued Operations	Discontinued OperationsProperties that are sold or classified as held for sale are classified as discontinued operations provided that the disposal represents a strategic shift that has (or will have) a major effect on our operations and financial results. Interest expense is included in discontinued operations if a related loan securing the sold property is to be paid off or assumed by the buyer in connection with the sale.
Investments in Unconsolidated Affiliates	Investments in Unconsolidated Affiliates We account for our joint venture investments using the equity method of accounting when our interests represent a general partnership interest but substantive participating rights or substantive kick out rights have been granted to the limited partners or when our interests do not represent a general partnership interest and we do not control the major operating and financial policies of the investment. These investments are initially recorded at cost as investments in unconsolidated affiliates and are
Cash Equivalents	Cash Equivalents We consider highly liquid investments with an original maturity of three months or less when purchased to be cash equivalents.
Restricted Cash	Restricted Cash Restricted cash represents cash deposits that are legally restricted or held by third parties on our behalf, such as construction-related escrows, property disposition proceeds set aside and designated or intended to fund future tax-deferred exchanges of qualifying real estate investments and escrows and reserves for debt service, real estate taxes and property insurance established pursuant to certain mortgage financing arrangements.
Redeemable Common Units and Preferred Units	Redeemable Common Units and Preferred Units Limited partners holding Common Units other than the Company (“Redeemable Common Units”) have the right to put any and all of the Common Units to the Operating Partnership and the Company has the right to put any and all of the Preferred Units to the Operating Partnership in exchange for their liquidation preference plus accrued and unpaid distributions in the event of a corresponding redemption by the Company of the underlying Preferred Stock. Consequently, these Redeemable Common Units and Preferred Units are classified outside of permanent partners’ capital in the Operating Partnership’s accompanying balance sheets. The recorded value of the Redeemable Common Units is based on fair value at the balance sheet date as measured by the closing price of Common Stock on that date multiplied by the total number of Redeemable Common Units outstanding. The recorded value of the Preferred Units is based on their redemption value.
Income Tax	Income Taxes The Company has elected and expects to continue to qualify as a REIT under Sections 856 through 860 of the Internal Revenue Code of 1986, as amended (the “Code”). A corporate REIT is a legal entity that holds real estate assets and, through the payment of dividends to stockholders, is generally permitted to reduce or avoid the payment of federal and state income taxes at the corporate level. To maintain qualification as a REIT, the Company is required to pay dividends to its stockholders equal to at least 90.0% of its annual REIT taxable income, excluding net capital gains. The partnership agreement requires the Operating Partnership to pay economically equivalent distributions on outstanding Common Units at the same time that the Company pays dividends on its outstanding Common Stock. Other than income taxes related to its taxable REIT subsidiary, the Operating Partnership does not reflect any federal income taxes in its financial statements, since as a partnership the taxable effects of its operations are attributed to its partners. The Operating Partnership does record state income tax for states that tax partnership income directly. We conduct certain business activities through a taxable REIT subsidiary, as permitted under the Code. The taxable REIT subsidiary is subject to federal, state and local income taxes on its taxable income. We record provisions for income taxes based on its income recognized for financial statement purposes, including the effects of differences between such income and the amount recognized for tax purposes.
Concentration of Credit Risk	Concentration of Credit Risk At December 31, 2020, properties that we wholly own were leased to 1,378 customers. The geographic locations that comprise greater than 10.0% of our rental and other revenues are Atlanta, Nashville, Raleigh and Tampa. Our customers engage in a wide variety of businesses. No single customer generated more than 5% of our consolidated revenues during 2020.
Derivative Financial Instruments	Derivative Financial Instruments We borrow funds at a combination of fixed and variable rates. Borrowings under our revolving credit facility and bank term loans bear interest at variable rates. Our long-term debt, which consists of secured and unsecured long-term financings, typically bears interest at fixed rates. Our interest rate risk management objectives are to limit generally the impact of interest rate changes on earnings and cash flows and lower our overall borrowing costs. To achieve these objectives, from time to time, we enter into interest rate hedge contracts such as collars, swaps, caps and treasury lock agreements in order to mitigate our interest rate risk with respect to existing and prospective debt instruments. We generally do not hold or issue these derivative contracts for trading or speculative purposes. The interest rate on all of our variable rate debt is generally adjusted at one three Interest rate swaps involve the receipt of variable rate amounts from a counterparty in exchange for making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount. Changes in the fair value of derivatives designated and that qualify as cash flow hedges are recorded in accumulated other comprehensive income/(loss) and are subsequently reclassified into interest expense as interest payments are made on our debt. We account for terminated derivative instruments by recognizing the related accumulated other comprehensive income/(loss) balance in current earnings, unless the hedged forecasted transaction continues as originally planned, in which case we continue to amortize the accumulated other comprehensive income/(loss) into earnings over the originally designated hedge period.
Earnings Per Share and Per Unit	Earnings Per Share and Per Unit Basic earnings per share of the Company is computed by dividing net income available for common stockholders by the weighted Common Shares outstanding - basic. Diluted earnings per share is computed by dividing net income available for common stockholders (inclusive of noncontrolling interests in the Operating Partnership) by the weighted Common Shares outstanding - basic plus the dilutive effect of options, warrants and convertible securities outstanding, including Common Units, using the treasury stock method. Weighted Common Shares outstanding - basic includes all unvested restricted stock where dividends received on such restricted stock are non-forfeitable. Basic earnings per unit of the Operating Partnership is computed by dividing net income available for common unitholders by the weighted Common Units outstanding - basic. Diluted earnings per unit is computed by dividing net income available for common unitholders by the weighted Common Units outstanding - basic plus the dilutive effect of options and warrants, using the treasury stock method. Weighted Common Units outstanding - basic includes all of the Company’s unvested restricted stock where distributions received on such restricted stock are non-forfeitable.
Recently Issued Accounting Standards	Recently Issued Accounting Standards The Financial Accounting Standards Board (“FASB”) issued an accounting standards update (“ASU”) that changes certain disclosure requirements for fair value measurements. We adopted the ASU as of January 1, 2020 with no material effect on our Notes to Consolidated Financial Statements. The FASB issued an ASU that provides temporary optional expedients and exceptions to the guidance on contract modifications and hedge accounting to ease the financial reporting burdens related to the expected market transition from LIBOR and other interbank offered rates to alternative reference rates, such as the Secured Overnight Financing Rate (“SOFR”). Entities can elect not to apply certain modification accounting requirements to contracts affected by reference rate reform, if certain criteria are met. An entity that makes this election would not have to remeasure the contracts at the modification date or reassess a previous accounting determination. Entities can also elect various optional expedients that would allow them to continue applying hedge accounting for hedging relationships affected by reference rate reform, if certain criteria are met. The guidance in this ASU is optional and may be elected over the period March 12, 2020 through December 31, 2022 as reference rate reform activities occur. We will continue to evaluate the impact of this ASU; however, we currently expect to avail ourselves of such optional expedients and exceptions should our modified contracts meet the required criteria. Due to the business disruptions and challenges severely affecting the global economy caused by the COVID-19 pandemic, lessors may provide rent deferrals and other lease concessions to lessees. In April 2020, the FASB staff issued a question and answer document (the “Lease Modification Q&A”) focused on the application of lease accounting guidance to lease concessions provided as a result of the COVID-19 pandemic. Under existing lease guidance, we would have to determine, on a lease by lease basis, if a lease concession was the result of a new arrangement reached with the tenant (treated within the lease modification accounting framework) or if a lease concession was under the enforceable rights and obligations within the existing lease agreement (precluded from applying the lease modification accounting framework). The Lease Modification

Leases (Policies)

Leases (Policies)	12 Months Ended
	Dec. 31, 2020
Leases [Abstract]
Leases	Leases On January 1, 2019, we adopted Accounting Standards Codification Topic 842 “Leases” (“ASC 842”), which supersedes Accounting Standards Codification Topic 840 “Leases” (“ASC 840”). Information in this Note 2 with respect to our leases and lease related costs as both lessee and lessor and lease related receivables as lessor is presented under ASC 842 as of and for the years ended December 31, 2020 and 2019 and under ASC 840 for the year ended December 31, 2018. We adopted ASC 842 using the modified retrospective approach whereby the cumulative effect of adoption was recognized on the adoption date and prior periods were not restated. There was no net cumulative effect adjustment to retained earnings as of January 1, 2019 as a result of this adoption. ASC 842 sets out the principles for the recognition, measurement, presentation and disclosure of leases for both lessees and lessors. We operate as both a lessor and a lessee. As a lessor, we are required under ASC 842 to account for leases using an approach that is substantially equivalent to ASC 840’s guidance for operating leases and other leases such as sales-type leases and direct financing leases. In addition, ASC 842 requires lessors to capitalize and amortize only incremental direct leasing costs. As a lessee, we are required under the new standard to apply a dual approach, classifying leases, such as ground leases, as either finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase. This classification determines whether lease expense is recognized based on an effective interest method or on a straight-line basis over the term of the lease. ASC 842 also requires lessees to record a right of use asset and a lease liability for all leases with a term of greater than a year regardless of their classification. We have also elected the practical expedient not to recognize right of use assets and lease liabilities for leases with a term of a year or less. On adoption of the standard, we elected the package of practical expedients provided for in ASC 842, including: • No reassessment of whether any expired or existing contracts were or contained leases; • No reassessment of the lease classification for any expired or existing leases; and • No reassessment of initial direct costs for any existing leases. The package of practical expedients was made as a single election and was consistently applied to all existing leases as of January 1, 2019. We also elected the practical expedient provided to lessors in a subsequent amendment to ASC 842 that removed the requirement to separate lease and nonlease components, provided certain conditions were met.

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Lessor, Operating Leases, ASC 842 Disclosure	The following table sets forth the undiscounted cash flows for future minimum base rents to be received from customers for leases in effect at December 31, 2020 for the properties that we wholly own: 2021 $ 623,888 2022 619,530 2023 570,417 2024 513,483 2025 432,272 Thereafter 2,049,545 $ 4,809,135
Allowance For Doubtful Accounts		The following table sets forth the activity of allowance for doubtful accounts: Balance at December 31, 2017 Additions Deductions Balance at December 31, 2018 Allowance for Doubtful Accounts - Straight-Line Rent $ 819 $ 599 $ (777) $ 641 Allowance for Doubtful Accounts - Accounts Receivable 753 969 (556) 1,166 Allowance for Doubtful Accounts - Notes Receivable 72 — (28) 44 Totals $ 1,644 $ 1,568 $ (1,361) $ 1,851
Lessee, Operating Leases, ASC 842 Disclosure	The following table sets forth the undiscounted cash flows of our scheduled obligations for future minimum payments on operating ground leases at December 31, 2020 and a reconciliation of those cash flows to the operating lease liability at December 31, 2020: 2021 $ 2,127 2022 2,169 2023 2,167 2024 2,123 2025 2,170 Thereafter 81,527 92,283 Discount (57,892) Lease liability $ 34,391

Investments In and Advances T_2

Investments In and Advances To Affiliates (Tables)	12 Months Ended
	Dec. 31, 2020
Equity Method Investments and Joint Ventures [Abstract]
Schedule of Equity Method Investments	The following table sets forth our ownership in unconsolidated affiliates at December 31, 2020: Joint Venture Location Ownership Plaza Colonnade, Tenant-in-Common Kansas City 50.0% Kessinger/Hunter & Company, LC Kansas City 26.5% Highwoods DLF Forum, LLC (1) Raleigh 25.0% __________ (1) We acquired our joint venture partner’s 75.0% interest in our Highwoods DLF Forum, LLC joint venture (the “Forum”) in the first quarter of 2021. See Note 19.
Schedule of Variable Interest Entities	The following table sets forth the assets and liabilities of the Midtown One joint venture included on our Consolidated Balance Sheets: December 31, Development in-process $ 46,873 Deferred leasing costs $ 196 Prepaid expenses and other assets $ 75 Accounts payable, accrued expenses and other liabilities $ 2,693

Intangible Assets and Below M_2

Intangible Assets and Below Market Lease Liabilities (Tables)	12 Months Ended
	Dec. 31, 2020
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, 2020 2019 Assets: Deferred leasing costs (including lease incentives and above market lease and in-place lease acquisition-related intangible assets) $ 361,027 $ 377,472 Less accumulated amortization (151,698) (146,125) $ 209,329 $ 231,347 Liabilities (in accounts payable, accrued expenses and other liabilities): Acquisition-related below market lease liabilities $ 63,748 $ 65,971 Less accumulated amortization (37,838) (34,014) $ 25,910 $ 31,957
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, 2020 2019 2018 Amortization of deferred leasing costs and acquisition-related intangible assets (in depreciation and amortization) $ 34,401 $ 37,386 $ 36,486 Amortization of lease incentives (in rental and other revenues) $ 1,847 $ 4,281 $ 1,908 Amortization of acquisition-related intangible assets (in rental and other revenues) $ 1,137 $ 1,290 $ 1,677 Amortization of acquisition-related intangible assets (in rental property and other expenses) $ 510 $ 557 $ 557 Amortization of acquisition-related below market lease liabilities (in rental and other revenues) $ (6,031) $ (6,633) $ (6,085)
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 Amortization Amortization Amortization 2021 $ 34,063 $ 1,563 $ 711 $ (4,958) 2022 30,011 1,353 601 (3,977) 2023 26,496 1,279 447 (3,600) 2024 23,348 1,133 373 (2,932) 2025 19,224 1,064 342 (1,673) Thereafter 60,979 4,523 1,819 (8,770) $ 194,121 $ 10,915 $ 4,293 $ (25,910) Weighted average remaining amortization periods as of December 31, 2020 (in years) 8.3 9.5 9.7 8.6

Mortgages and Notes Payable (Ta

Mortgages and Notes Payable (Tables)	12 Months Ended
	Dec. 31, 2020
Debt Disclosure [Abstract]
Schedule of Consolidated Mortgages and Notes Payable	Our mortgages and notes payable consisted of the following: December 31, 2020 2019 Secured indebtedness: 4.00% mortgage loan due 2029 (1) $ 93,350 $ 95,303 93,350 95,303 Unsecured indebtedness: 3.20% (3.363% effective rate) notes due 2021 (2) 149,901 299,369 3.625% (3.752% effective rate) notes due 2023 (3) 249,464 249,201 3.875% (4.038% effective rate) notes due 2027 (4) 297,534 297,134 4.125% (4.271% effective rate) notes due 2028 (5) 347,035 346,621 4.20% (4.234% effective rate) notes due 2029 (6) 349,189 349,091 3.050% (3.079% effective rate) notes due 2030 (7) 399,106 399,009 2.600% (2.645% effective rate) notes due 2031 (8) 398,423 — Variable rate term loan due 2022 (9) — 100,000 Variable rate term loan due 2022 (10) 200,000 200,000 Revolving credit facility due 2022 — 221,000 2,390,652 2,461,425 Less-unamortized debt issuance costs (13,981) (13,018) Total mortgages and notes payable, net $ 2,470,021 $ 2,543,710 __________ (1) Our secured mortgage loan was collateralized by real estate assets with an undepreciated book value of $147.9 million at December 31, 2020. We paid down $2.0 million of secured loan balances through principal amortization during 2020. (2) Net of unamortized original issuance discount of $0.1 million and $0.6 million as of December 31, 2020 and 2019, respectively. (3) Net of unamortized original issuance discount of $0.5 million and $0.8 million as of December 31, 2020 and 2019, respectively. (4) Net of unamortized original issuance discount of $2.5 million and $2.9 million as of December 31, 2020 and 2019, respectively. (5) Net of unamortized original issuance discount of $3.0 million and $3.4 million as of December 31, 2020 and 2019, respectively. (6) Net of unamortized original issuance discount of $0.8 million and $0.9 million as of December 31, 2020 and 2019, respectively. (7) Net of unamortized original issuance discount of $0.9 million and $1.0 million as of December 31, 2020 and 2019, respectively. (8) Net of unamortized original issuance discount of $1.6 million as of December 31, 2020. (9) This debt was repaid in 2020.
Schedule of Long-term Debt Instruments	The following table sets forth scheduled future principal payments, including amortization, due on our mortgages and notes payable at December 31, 2020: Years Ending December 31, Principal Amount 2021 $ 150,504 2022 200,686 2023 251,024 2024 1,124 2025 (1) (185) Thereafter 1,880,849 Less-unamortized debt issuance costs (13,981) $ 2,470,021 __________ (1) Represents amortization of discounts in excess of principal payments due.

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments, Fair Value	The following table sets forth the fair value of our derivatives: December 31, 2020 2019 Derivatives: Derivatives designated as cash flow hedges in accounts payable, accrued expenses and other liabilities: Interest rate swaps $ 846 $ 154
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance	The following table sets forth the effect of our cash flow hedges on accumulated other comprehensive income/(loss) and interest expense: Year Ended December 31, 2020 2019 2018 Derivatives Designated as Cash Flow Hedges: Amount of unrealized gains/(losses) recognized in accumulated other comprehensive income/(loss) on derivatives: Interest rate swaps $ (1,238) $ (9,134) $ 4,161 Amount of (gains)/losses reclassified out of accumulated other comprehensive income/(loss) into interest expense: Interest rate swaps $ 247 $ (1,250) $ (2,086)

Noncontrolling Interests (Table

Noncontrolling Interests (Tables) - Highwoods Properties, Inc. [Member]	12 Months Ended
	Dec. 31, 2020
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, 2020 2019 Beginning noncontrolling interests in the Operating Partnership $ 133,216 $ 105,960 Adjustment of noncontrolling interests in the Operating Partnership to fair value (30,617) 29,557 Issuances of Common Units 6,163 — Conversions of Common Units to Common Stock (145) (663) Net income attributable to noncontrolling interests in the Operating Partnership 9,338 3,551 Distributions to noncontrolling interests in the Operating Partnership (5,456) (5,189) Total noncontrolling interests in the Operating Partnership $ 112,499 $ 133,216
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, 2020 2019 2018 Net income available for common stockholders $ 344,914 $ 134,430 $ 169,343 Increase in additional paid in capital from conversions of Common Units to Common Stock 145 663 4,043 Issuances of Common Units (6,163) — — Change from net income available for common stockholders and transfers from noncontrolling interests $ 338,896 $ 135,093 $ 173,386

Disclosure About Fair Value o_2

Disclosure About Fair Value of Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Fair Value Measurements of Assets, Liabilities and Noncontrolling Interests	The following table sets forth our assets and liabilities and the Company’s noncontrolling interests in the Operating Partnership that are measured or disclosed at fair value within the fair value hierarchy: Level 1 Level 2 Total Quoted Prices Significant Observable Inputs Fair Value at December 31, 2020: Assets: Mortgages and notes receivable, at fair value (1) $ 1,341 $ — $ 1,341 Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets) 2,573 2,573 — Total Assets $ 3,914 $ 2,573 $ 1,341 Noncontrolling Interests in the Operating Partnership $ 112,499 $ 112,499 $ — Liabilities: Mortgages and notes payable, net, at fair value (1) $ 2,639,163 $ — $ 2,639,163 Interest rate swaps (in accounts payable, accrued expenses and other liabilities) 846 — 846 Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities) 2,573 2,573 — Total Liabilities $ 2,642,582 $ 2,573 $ 2,640,009 Fair Value at December 31, 2019: Assets: Mortgages and notes receivable, at fair value (1) $ 1,501 $ — $ 1,501 Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets) 2,345 2,345 — Total Assets $ 3,846 $ 2,345 $ 1,501 Noncontrolling Interests in the Operating Partnership $ 133,216 $ 133,216 $ — Liabilities: Mortgages and notes payable, net, at fair value (1) $ 2,615,776 $ — $ 2,615,776 Interest rate swaps (in accounts payable, accrued expenses and other liabilities) 154 — 154 Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities) 2,345 2,345 — Total Liabilities $ 2,618,275 $ 2,345 $ 2,615,930 __________ (1) Amounts are not recorded at fair value on our Consolidated Balance Sheets at December 31, 2020 and 2019.

Equity (Tables)

Equity (Tables)	12 Months Ended
	Dec. 31, 2020
Class of Stock [Line Items]
Schedule of Stock by Class, Preferred Stock	The following table sets forth the Company’s Preferred Stock: Issue Date Number of Shares Outstanding Carrying Value Liquidation Preference Per Share Optional Redemption Date Annual Dividends Payable Per Share (in thousands) December 31, 2020 8.625% Series A Cumulative Redeemable 2/12/1997 29 $ 28,826 $ 1,000 2/12/2027 $ 86.25 December 31, 2019 8.625% Series A Cumulative Redeemable 2/12/1997 29 $ 28,859 $ 1,000 2/12/2027 $ 86.25
Common Stock [Member]
Class of Stock [Line Items]
Schedule Of Components Of Taxability Of Company Dividends [Table Text Block]	The following table sets forth the Company’s estimated taxability to the common stockholders of dividends per share for federal income tax purposes: Year Ended December 31, 2020 2019 2018 Ordinary dividend $ 1.65 $ 1.64 $ 1.48 Capital gains 0.25 0.13 0.31 Return of capital 0.02 0.13 0.06 Total $ 1.92 $ 1.90 $ 1.85
Preferred Stock [Member]
Class of Stock [Line Items]
Schedule Of Components Of Taxability Of Company Dividends [Table Text Block]	The following table sets forth the Company’s estimated taxability to the preferred stockholders of dividends per share for federal income tax purposes: Year Ended December 31, 2020 2019 2018 8.625% Series A Cumulative Redeemable: Ordinary dividend $ 74.96 $ 79.90 $ 71.22 Capital gains 11.29 6.35 15.03 Total $ 86.25 $ 86.25 $ 86.25
Highwoods Realty Limited Partnership [Member]
Class of Stock [Line Items]
Schedule of Stock by Class, Preferred Stock	The following table sets forth the Operating Partnership’s Preferred Units: Issue Date Number of Carrying Liquidation Preference Optional Redemption Annual (in thousands) December 31, 2020 8.625% Series A Cumulative Redeemable 2/12/1997 29 $ 28,826 $ 1,000 2/12/2027 $ 86.25 December 31, 2019 8.625% Series A Cumulative Redeemable 2/12/1997 29 $ 28,859 $ 1,000 2/12/2027 $ 86.25

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2020
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, 2020 2019 Outstanding stock options and warrants 552,373 599,902 Possible future issuance under equity incentive plans 1,926,324 2,016,659 2,478,697 2,616,561
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award	The following table sets forth stock option activity: Options Outstanding Number of Options Weighted Average Exercise Price Stock options outstanding at December 31, 2017 640,822 $ 45.29 Exercised (44,304) 40.15 Stock options outstanding at December 31, 2018 596,518 45.67 Exercised (9,026) 39.53 Forfeited (2,590) 48.79 Stock options outstanding at December 31, 2019 584,902 45.75 Exercised (42,163) 41.10 Forfeited (5,366) 50.82 Stock options outstanding at December 31, 2020 (1) (2) 537,373 $ 46.07 __________ (1) The outstanding options at December 31, 2020 had a weighted average remaining life of 5.0 years. (2) The Company had 496,656 options exercisable at December 31, 2020 with a weighted average exercise price of $45.54, weighted average remaining life of 4.9 years and intrinsic value of $0.1 million. Of these exercisable options, 436,880 had exercise prices higher than the market price of our Common Stock at December 31, 2020.
Schedule of NonQualified Deferred Compensation Liability	The following table sets forth our deferred compensation liability: Year Ended December 31, 2020 2019 2018 Beginning deferred compensation liability $ 2,345 $ 1,849 $ 2,388 Mark-to-market adjustment to deferred compensation (in general and administrative expenses) 228 496 (182) Distributions from deferred compensation plans — — (357) Total deferred compensation liability $ 2,573 $ 2,345 $ 1,849
Time-Based Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Schedule of Share-based Compensation, Restricted Stock Units Award Activity	The following table sets forth time-based restricted stock activity: Number of Shares Weighted Average Grant Date Fair Value Restricted shares outstanding at December 31, 2017 172,246 $ 46.46 Awarded and issued (1) 94,984 43.01 Vested (2) (73,307) 44.19 Forfeited (2,684) 45.89 Restricted shares outstanding at December 31, 2018 191,239 45.62 Awarded and issued (1) 103,590 45.98 Vested (2) (73,036) 45.79 Forfeited (3,642) 46.07 Restricted shares outstanding at December 31, 2019 218,151 45.73 Awarded and issued (1) 83,116 44.88 Vested (2) (88,326) 45.86 Forfeited (3,751) 45.78 Restricted shares outstanding at December 31, 2020 209,190 $ 45.34 __________ (1) The weighted average fair value at grant date of time-based restricted stock issued during the years ended December 31, 2020, 2019 and 2018 was $3.7 million, $4.8 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, 2020, 2019 and 2018 was $3.9 million, $3.3 million and $3.2 million, respectively. Vested shares include those shares surrendered by employees to satisfy tax withholding obligations in connection with such vesting.
Total Return-Based Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions	The fair values of the total return-based restricted stock granted were determined at the grant dates using a Monte Carlo simulation model and the following assumptions: 2020 2019 2018 Risk free interest rate (1) 0.9 % 2.4 % 2.3 % Common stock dividend yield (2) 3.9 % 4.4 % 3.9 % Expected volatility (3) 20.4 % 27.3 % 41.1 % __________ (1) Represents the interest rate as of the grant date on US treasury bonds having the same life as the estimated life of the total return-based restricted stock grants. (2) The dividend yield is calculated utilizing the then current regular dividend rate for a one three (3) Based on the historical volatility of Common Stock over a period relevant to the related total return-based restricted stock grant.
Schedule of Share-based Compensation, Restricted Stock Units Award Activity	The following table sets forth total return-based restricted stock activity: Number of Shares Weighted Average Grant Date Fair Value Restricted shares outstanding at December 31, 2017 160,724 $ 44.72 Awarded and issued (1) 77,456 40.81 Vested (2) (41,160) 45.61 Forfeited (3) (16,926) 45.24 Restricted shares outstanding at December 31, 2018 180,094 43.34 Awarded and issued (1) 87,344 39.42 Vested (2) (45,901) 43.68 Forfeited (3) (12,689) 43.58 Restricted shares outstanding at December 31, 2019 208,848 42.22 Awarded and issued (1) 66,188 38.31 Forfeited (3) (49,852) 51.93 Restricted shares outstanding at December 31, 2020 225,184 $ 39.53 __________ (1) The fair value at grant date of total return-based restricted stock issued during the years ended December 31, 2020, 2019 and 2018 was $2.5 million, $3.4 million and $3.2 million, respectively, at target. (2) The vesting date fair value of total return-based restricted stock that vested during the years ended December 31, 2019 and 2018 was $2.1 million and $1.8 million, respectively, based on the performance of the specific plans. Vested shares include those shares surrendered by employees to satisfy tax withholding obligations in connection with such vesting. There were no vested shares of total return-based restricted stock during the year ended December 31, 2020. (3) The 2020, 2019 and 2018 amounts include 46,852, 9,521 and 13,707 shares, respectively, that were forfeited at the end of the applicable measurement period because the applicable total return did not meet targeted levels.

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income/(Loss) (Tables)	12 Months Ended
	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Components of Accumulated Comprehensive Income/(Loss)	The following table sets forth the components of accumulated other comprehensive income/(loss): December 31, 2020 2019 Cash flow hedges: Beginning balance $ (471) $ 9,913 Unrealized losses on cash flow hedges (1,238) (9,134) Amortization of cash flow hedges (1) 247 (1,250) Total accumulated other comprehensive loss $ (1,462) $ (471) __________ (1) Amounts reclassified out of accumulated other comprehensive income/(loss) into interest expense.

Real Estate and Other Assets _2

Real Estate and Other Assets Held For Sale (Tables)	12 Months Ended
	Dec. 31, 2020
Discontinued Operations and Disposal Groups [Abstract]
Real Estate and Other Assets of the Properties Classified As Held For Sale	The following table sets forth the assets held for sale at December 31, 2020 and 2019, which are considered non-core: December 31, 2020 2019 Assets: Land $ 2,612 $ 4,815 Buildings and tenant improvements 12,238 29,581 Less-accumulated depreciation (3,577) (16,775) Net real estate assets 11,273 17,621 Accrued straight-line rents receivable — 2,073 Deferred leasing costs, net 87 1,096 Real estate and other assets, net, held for sale $ 11,360 $ 20,790

Earnings Per Share and Per Un_2

Earnings Per Share and Per Unit (Tables)	12 Months Ended
	Dec. 31, 2020
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, 2020 2019 2018 Earnings per Common Share - basic: Numerator: Net income $ 357,914 $ 141,683 $ 177,630 Net (income) attributable to noncontrolling interests in the Operating Partnership (9,338) (3,551) (4,588) Net (income) attributable to noncontrolling interests in consolidated affiliates (1,174) (1,214) (1,207) Dividends on Preferred Stock (2,488) (2,488) (2,492) Net income available for common stockholders $ 344,914 $ 134,430 $ 169,343 Denominator: Denominator for basic earnings per Common Share – weighted average shares (1) 103,876 103,692 103,439 Net income available for common stockholders $ 3.32 $ 1.30 $ 1.64 Earnings per Common Share - diluted: Numerator: Net income $ 357,914 $ 141,683 $ 177,630 Net (income) attributable to noncontrolling interests in consolidated affiliates (1,174) (1,214) (1,207) Dividends on Preferred Stock (2,488) (2,488) (2,492) Net income available for common stockholders before net (income) attributable to noncontrolling interests in the Operating Partnership $ 354,252 $ 137,981 $ 173,931 Denominator: Denominator for basic earnings per Common Share – weighted average shares (1) 103,876 103,692 103,439 Add: Stock options using the treasury method 8 22 33 Noncontrolling interests Common Units 2,830 2,731 2,796 Denominator for diluted earnings per Common Share – adjusted weighted average shares and assumed conversions 106,714 106,445 106,268 Net income available for common stockholders $ 3.32 $ 1.30 $ 1.64 __________ (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, 2020 2019 2018 Earnings per Common Unit - basic: Numerator: Net income $ 357,914 $ 141,683 $ 177,630 Net (income) attributable to noncontrolling interests in consolidated affiliates (1,174) (1,214) (1,207) Distributions on Preferred Units (2,488) (2,488) (2,492) Net income available for common unitholders $ 354,252 $ 137,981 $ 173,931 Denominator: Denominator for basic earnings per Common Unit – weighted average units (1) 106,297 106,014 105,826 Net income available for common unitholders $ 3.33 $ 1.30 $ 1.64 Earnings per Common Unit - diluted: Numerator: Net income $ 357,914 $ 141,683 $ 177,630 Net (income) attributable to noncontrolling interests in consolidated affiliates (1,174) (1,214) (1,207) Distributions on Preferred Units (2,488) (2,488) (2,492) Net income available for common unitholders $ 354,252 $ 137,981 $ 173,931 Denominator: Denominator for basic earnings per Common Unit – weighted average units (1) 106,297 106,014 105,826 Add: Stock options using the treasury method 8 22 33 Denominator for diluted earnings per Common Unit – adjusted weighted average units and assumed conversions 106,305 106,036 105,859 Net income available for common unitholders $ 3.33 $ 1.30 $ 1.64 __________ (1) Includes all unvested restricted stock where distributions on such restricted stock are non-forfeitable.

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Schedule of Income Tax Expense/(Benefit)	The following table sets forth the Company’s income tax expense: Year Ended December 31, 2020 2019 2018 Current tax expense: Federal $ 110 $ 202 $ 133 State 240 148 112 350 350 245 Deferred tax expense/(benefit): Federal (9) 14 (95) State (4) (120) (68) (13) (106) (163) Total income tax expense $ 337 $ 244 $ 82

Segment Information (Tables)

Segment Information (Tables)	12 Months Ended
	Dec. 31, 2020
Segment Reporting [Abstract]
Segment Information	The following tables summarize the rental and other revenues and net operating income, the primary industry property-level performance metric used by our chief operating decision maker and which is defined as rental and other revenues less rental property and other expenses, for each of our reportable segments. Our segment information as of December 31, 2019 and for the years ended December 31, 2019 and 2018 have been retrospectively revised from previously reported amounts to reflect a change in our reportable segments as a result of recent dispositions. Year Ended December 31, 2020 2019 2018 Rental and Other Revenues: Office: Atlanta $ 146,704 $ 151,279 $ 141,337 Charlotte 35,733 4,650 — Nashville 138,089 133,867 121,836 Orlando 49,459 52,679 53,771 Pittsburgh 58,518 60,755 61,177 Raleigh 128,189 122,173 118,352 Richmond 48,079 49,428 45,729 Tampa 99,520 86,431 102,404 Total Office Segment 704,291 661,262 644,606 Other 32,609 74,717 75,429 Total Rental and Other Revenues $ 736,900 $ 735,979 $ 720,035 Net Operating Income: Office: Atlanta $ 95,448 $ 97,019 $ 87,503 Charlotte 28,431 3,791 — Nashville 99,901 97,386 88,554 Orlando 29,546 32,062 32,841 Pittsburgh 35,631 36,249 36,233 Raleigh 95,926 88,402 86,053 Richmond 33,667 33,756 31,276 Tampa 67,059 50,339 65,819 Total Office Segment 485,609 439,004 428,279 Other 19,466 48,464 49,341 Total Net Operating Income 505,075 487,468 477,620 Reconciliation to net income: Depreciation and amortization (241,585) (254,504) (229,955) Impairments of real estate assets (1,778) (5,849) (423) General and administrative expenses (41,031) (44,067) (40,006) Interest expense (80,962) (81,648) (71,422) Other income/(loss) (1,707) (2,510) 1,940 Gains on disposition of property 215,897 39,517 37,638 Equity in earnings of unconsolidated affiliates 4,005 3,276 2,238 Net income $ 357,914 $ 141,683 $ 177,630 December 31, 2020 2019 Total Assets: Office: Atlanta $ 1,011,807 $ 1,040,869 Charlotte 443,051 425,045 Nashville 1,191,219 1,045,125 Orlando 289,129 289,743 Pittsburgh 313,783 323,792 Raleigh 839,831 830,128 Richmond 240,976 246,546 Tampa 556,951 521,620 Total Office Segment 4,886,747 4,722,868 Other 322,670 415,376 Total Assets $ 5,209,417 $ 5,138,244

Quarterly Financial Data (Una_2

Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2020
Quarterly Financial Data [Line Items]
Schedule of Quarterly Financial Data	The following tables set forth quarterly financial information of the Company: Year Ended December 31, 2020 First Second Third Fourth Total Rental and other revenues $ 192,800 $ 183,153 $ 181,043 $ 179,904 $ 736,900 Net income 191,340 38,956 42,331 85,287 357,914 Net (income) attributable to noncontrolling interests in the Operating Partnership (4,960) (1,017) (1,107) (2,254) (9,338) Net (income) attributable to noncontrolling interests in consolidated affiliates (285) (289) (298) (302) (1,174) Dividends on Preferred Stock (622) (622) (622) (622) (2,488) Net income available for common stockholders $ 185,473 $ 37,028 $ 40,304 $ 82,109 $ 344,914 Earnings per Common Share – basic: Net income available for common stockholders $ 1.79 $ 0.36 $ 0.39 $ 0.79 $ 3.32 Earnings per Common Share – diluted: Net income available for common stockholders $ 1.79 $ 0.36 $ 0.39 $ 0.79 $ 3.32 Year Ended December 31, 2019 First Second Third Fourth Total Rental and other revenues $ 172,363 $ 184,070 $ 187,475 $ 192,071 $ 735,979 Net income 8,386 41,394 29,557 62,346 141,683 Net (income) attributable to noncontrolling interests in the Operating Partnership (193) (1,044) (737) (1,577) (3,551) Net (income) attributable to noncontrolling interests in consolidated affiliates (316) (306) (297) (295) (1,214) Dividends on Preferred Stock (622) (622) (622) (622) (2,488) Net income available for common stockholders $ 7,255 $ 39,422 $ 27,901 $ 59,852 $ 134,430 Earnings per Common Share – basic: Net income available for common stockholders $ 0.07 $ 0.38 $ 0.27 $ 0.58 $ 1.30 Earnings per Common Share – diluted: Net income available for common stockholders $ 0.07 $ 0.38 $ 0.27 $ 0.58 $ 1.30
Highwoods Realty Limited Partnership [Member]
Quarterly Financial Data [Line Items]
Schedule of Quarterly Financial Data	The following tables set forth quarterly financial information of the Operating Partnership: Year Ended December 31, 2020 First Second Third Fourth Total Rental and other revenues $ 192,800 $ 183,153 $ 181,043 $ 179,904 $ 736,900 Net income 191,340 38,956 42,331 85,287 357,914 Net (income) attributable to noncontrolling interests in consolidated affiliates (285) (289) (298) (302) (1,174) Distributions on Preferred Units (622) (622) (622) (622) (2,488) Net income available for common unitholders $ 190,433 $ 38,045 $ 41,411 $ 84,363 $ 354,252 Earnings per Common Unit – basic: Net income available for common unitholders $ 1.79 $ 0.36 $ 0.39 $ 0.79 $ 3.33 Earnings per Common Unit – diluted: Net income available for common unitholders $ 1.79 $ 0.36 $ 0.39 $ 0.79 $ 3.33 Year Ended December 31, 2019 First Second Third Fourth Total Rental and other revenues $ 172,363 $ 184,070 $ 187,475 $ 192,071 $ 735,979 Net income 8,386 41,394 29,557 62,346 141,683 Net (income) attributable to noncontrolling interests in consolidated affiliates (316) (306) (297) (295) (1,214) Distributions on Preferred Units (622) (622) (622) (622) (2,488) Net income available for common unitholders $ 7,448 $ 40,466 $ 28,638 $ 61,429 $ 137,981 Earnings per Common Unit – basic: Net income available for common unitholders $ 0.07 $ 0.38 $ 0.27 $ 0.58 $ 1.30 Earnings per Common Unit – diluted: Net income available for common unitholders $ 0.07 $ 0.38 $ 0.27 $ 0.58 $ 1.30

Description of Business and S_3

Description of Business and Significant Accounting Policies (Details) $ in Thousands, ft² in Millions	12 Months Ended
	Dec. 31, 2020USD ($)ft²acustomerspropertyUnitshares	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Description of Business [Abstract]
Rentable square feet of commercial real estate (in square feet) | ft²	27.2
Rentable square feet of commercial real estate under development (in square feet) | ft²	1.2
Undeveloped land suitable for future development (in acres) | a	230
Number of common units required to convert to one share of common stock (in shares)	1
Number of trading days preceeding Redemption Notice Date (in days)	10 days
Consolidated in-service office properties not wholly owned (in units) | propertyUnit	3
Percentage acquired in VIE (in hundredths)	100.00%
Self insurance liability | $	$ 500
Real estate assets, depreciation expense | $	$ 204,585	$ 214,682	$ 191,035
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	1,378
Percent of annualized cash rental revenue derived from geographic locations	10.00%
Limit of consolidated revenue generated by any single customer	5.00%
Deferred rents included in accounts receivable | $	$ 3,700
Minimum [Member]
Description of Business [Abstract]
Adjustment interval of variable debt interest rates, mimimum (in months)	1 month
Maximum [Member]
Description of Business [Abstract]
Adjustment interval of variable debt interest rates, mimimum (in months)	3 months
Building [Member]
Description of Business [Abstract]
Property, plant and equipment useful life	40 years
Building Improvements [Member]
Description of Business [Abstract]
Property, plant and equipment useful life	15 years
Furniture and Fixtures [Member] | Minimum [Member]
Description of Business [Abstract]
Property, plant and equipment useful life	5 years
Furniture and Fixtures [Member] | Maximum [Member]
Description of Business [Abstract]
Property, plant and equipment useful life	7 years
Leaseholds and Leasehold Improvements [Member] | Minimum [Member]
Description of Business [Abstract]
Property, plant and equipment useful life	3 years
Leaseholds and Leasehold Improvements [Member] | Maximum [Member]
Description of Business [Abstract]
Property, plant and equipment useful life	10 years
Highwoods Properties, Inc. [Member]
Description of Business [Abstract]
Common Units of partnership owned (in shares)	103,500,000
Percentage of ownership of Common Units	97.30%
Common units redeemed for a like number of common shares of stock (in shares)	3,570
Highwoods Realty Limited Partnership [Member]
Description of Business [Abstract]
Common Units of partnership not owned by the Company (in shares)	2,800,000
Issuance of Common Units in acquisition (in units)	118,592

Leases ASC 842 (Details)

Leases ASC 842 (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)propertyUnit	Dec. 31, 2019USD ($)
Lessor Disclosure [Abstract]
Rental and other revenues related to operating lease payments	$ 726,000	$ 723,100
Variable lease payments	56,000	65,400
Operating leases, scheduled future minimum payments receivable [Abstract]
2021	623,888
2022	619,530
2023	570,417
2024	513,483
2025	432,272
Thereafter	2,049,545
Operating leases, total future minimum payments receivable due	$ 4,809,135
Lessee Disclosure [Abstract]
Number of properties subject to ground leases | propertyUnit	20
Weighted average remaining term of ground leases (in years)	51 years
Operating lease liability upon initial adoption	$ 35,300
Operating Lease, Liability, Statement of Financial Position [Extensible List]	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
Right of use asset upon initial adoption	$ 29,700
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:PrepaidExpenseAndOtherAssets
Operating lease discount rate (in hundredths)	4.50%
Operating ground lease expense	$ 2,600	2,500
Operating ground lease payments	2,200	$ 2,200
Operating ground lease liabilities, scheduled future minimum payments [Abstract]
2021	2,127
2022	2,169
2023	2,167
2024	2,123
2025	2,170
Thereafter	81,527
Operating ground lease liability, total future minimum payments	92,283
Operating lease liability discount	(57,892)
Operating lease liability	$ 34,391
Minimum [Member]
Lessor Disclosure [Abstract]
Operating leases, term of leases	3 years
Maximum [Member]
Lessor Disclosure [Abstract]
Operating leases, term of leases	10 years

Leases ASC 840 (Details)

Leases ASC 840 (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)
Allowance For Doubtful Accounts [Roll Forward]
Allowance for doubtful accounts, beginning balance	$ 1,644
Additions to allowance for doubtful accounts	1,568
Deductions to allowance for doubtful accounts	(1,361)
Allowance for doubtful accounts, ending balance	1,851
Lessee Disclosure [Abstract]
Total rental property expense recorded for operating ground leases	2,500
Allowance for Doubtful Accounts - Straight Line Rent [Member]
Allowance For Doubtful Accounts [Roll Forward]
Allowance for doubtful accounts, beginning balance	819
Additions to allowance for doubtful accounts	599
Deductions to allowance for doubtful accounts	(777)
Allowance for doubtful accounts, ending balance	641
Allowance for Doubtful Accounts - Accounts Receivable [Member]
Allowance For Doubtful Accounts [Roll Forward]
Allowance for doubtful accounts, beginning balance	753
Additions to allowance for doubtful accounts	969
Deductions to allowance for doubtful accounts	(556)
Allowance for doubtful accounts, ending balance	1,166
Allowance for Doubtful Accounts - Notes Receivable [Member]
Allowance For Doubtful Accounts [Roll Forward]
Allowance for doubtful accounts, beginning balance	72
Additions to allowance for doubtful accounts	0
Deductions to allowance for doubtful accounts	(28)
Allowance for doubtful accounts, ending balance	$ 44

Real Estate Assets (Details)

Real Estate Assets (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)aft²propertyUnitparcelshares	Dec. 31, 2019USD ($)ft²apropertyUnitparcel	Dec. 31, 2018USD ($)apropertyUnitparcel
Acquisitions [Abstract]
Rentable square feet of commercial real estate (in square feet) | ft²	27,200,000
Undeveloped land suitable for future development (in acres) | a	230
Dispositions [Abstract]
Gains on disposition of property	$ 215,897	$ 39,517	$ 37,638
Impairments [Abstract]
Impairments of real estate assets	$ 1,778	$ 5,849	$ 423
2020 Land Acquisitions [Member]
Acquisitions [Abstract]
Number of development parcels acquired (in parcels) | parcel	2
Undeveloped land suitable for future development (in acres) | a	1
Purchase price of acquisition	$ 8,500
Issuance of Common Units in acquisition (in units) | shares	118,592
Submarket Acquisition [Member]
Acquisitions [Abstract]
Rentable square feet of commercial real estate (in square feet) | ft²		841,000
Purchase price of acquisition		$ 399,100
2019 Land Acquisitions [Member]
Acquisitions [Abstract]
Number of development parcels acquired (in parcels) | parcel		4
Undeveloped land suitable for future development (in acres) | a		10
Purchase price of acquisition		$ 12,400
Nashville TN Land Acquisition (03/2018) [Member]
Acquisitions [Abstract]
Number of development parcels acquired (in parcels) | parcel			2
Undeveloped land suitable for future development (in acres) | a			9
Purchase price of acquisition			$ 50,600
2020 Dispositions [Member]
Acquisitions [Abstract]
Rentable square feet of commercial real estate (in square feet) | ft²	4,489,000
Dispositions [Abstract]
Number of buildings sold | propertyUnit	52
Sale price of disposition	$ 494,200
Closing credits excluded for unfunded building and/or tenant improvements	5,700
Gains on disposition of property	215,500
2019 Dispositions [Member]
Dispositions [Abstract]
Number of buildings sold | propertyUnit		6
Sale price of disposition		$ 136,400
Gains on disposition of property		39,500
2018 Dispositions [Member]
Dispositions [Abstract]
Number of buildings sold | propertyUnit			3
Sale price of disposition			$ 90,600
Gains on disposition of property			37,600
2016 Land Disposition [Member]
Dispositions [Abstract]
Gains on disposition of property	400
2020 Impairments [Member]
Impairments [Abstract]
Impairments of real estate assets	$ 1,800
2019 Impairments [Member]
Impairments [Abstract]
Impairments of real estate assets		$ 5,800
2018 Impairments [Member]
Impairments [Abstract]
Impairments of real estate assets			$ 400

Investments In and Advances T_3

Investments In and Advances To Affiliates (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Schedule of Equity Method Investments [Line Items]
Percentage of equity interest in joint ventures, maximum	50.00%
Difference between cost of investments and the net book value of underlying net assets	$ 0.6	$ 0.7
Development, management and leasing fees recognized from unconsolidated affiliates	1	0.5	$ 0.4
Receivables from management and leasing fees	$ 0.2	$ 0.1
Plaza Colonnade, Tenant-in-Common [Member]
Schedule of Equity Method Investments [Line Items]
Percentage of equity interest in joint ventures, maximum	50.00%
Kessinger/Hunter & Company, LC [Member]
Schedule of Equity Method Investments [Line Items]
Percentage of equity interest in joint ventures, maximum	26.50%
Highwoods DLF Forum, LLC Joint Venture [Member]
Schedule of Equity Method Investments [Line Items]
Percentage of equity interest in joint ventures, maximum	25.00%
Percentage of partner's interest in asset acquired (in hundredths)	75.00%
Highwoods-Markel Associates, LLC Joint Venture [Member]
Consolidated Affiliates:
Percentage of equity interest in consolidated affiliates	50.00%
Fair value of noncontrolling interests in consolidated affiliate	$ 30.7

Investments In and Advances T_4

Investments In and Advances To Affiliates Consolidated Variable Interest Entity (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)ft²	Dec. 31, 2020USD ($)ft²	Dec. 31, 2018USD ($)
Consolidated Variable Interest Entity [Abstract]
Rentable square feet of office property under development (in sq feet) | ft²		1,200,000
Assets and liabilities of consolidated variable interest entity [Abstract]
Development in-process	$ 172,706	$ 259,681	$ 165,537
Deferred leasing costs	231,347	209,329
Prepaid expenses and other assets	58,996	62,885
Accounts payable, accrued expenses and other liabilities	$ 286,911	$ 268,727
Ownership Percentage [Member]
Consolidated Variable Interest Entity [Abstract]
Partner's interest in consolidated joint venture (in hundredths)		50.00%
Consolidated Variable Interest Entity [Member]
Consolidated Variable Interest Entity [Abstract]
Rentable square feet of office property under development (in sq feet) | ft²	150,000
Total anticipated development costs	$ 71,300
Contribution of cash to acquire interest in consolidated joint venture	$ 20,000
Percentage of equity interest in consolidated affiliates	80.00%
Partner's contribution of property to acquire interest in consolidated joint venture	$ 5,000
Advance to consolidated affiliate	$ 46,300
Interest rate, basis spread (in hundredths)	2.50%
Amount of loan funded to affiliate		$ 18,500
Assets and liabilities of consolidated variable interest entity [Abstract]
Development in-process		46,873
Deferred leasing costs		196
Prepaid expenses and other assets		75
Accounts payable, accrued expenses and other liabilities		$ 2,693
Consolidated Variable Interest Entity [Member] | Ownership Percentage [Member]
Consolidated Variable Interest Entity [Abstract]
Partner's interest in consolidated joint venture (in hundredths)	20.00%	20.00%
London Interbank Offered Rate (LIBOR) [Member] | Consolidated Variable Interest Entity [Member]
Consolidated Variable Interest Entity [Abstract]
Interest rate basis	LIBOR

Intangible Assets and Below M_3

Intangible Assets and Below Market Lease Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Intangible assets and below market lease liabilities, net [Abstract]
Deferred leasing costs, gross	$ 361,027	$ 377,472
Deferred leasing costs, accumulated amortization	(151,698)	(146,125)
Deferred leasing costs, net/Total scheduled future amortization of intangible assets	209,329	231,347
Acquisition-related below market lease liabilities, gross	63,748	65,971
Acquisition-related below market lease liabilities, accumulated amortization	(37,838)	(34,014)
Acquisition-related below market lease liabilities, net	25,910	31,957
Deferred Leasing Costs and Acquisition-Related Intangible Assets [Member]
Intangible assets and below market lease liabilities, net [Abstract]
Deferred leasing costs, net/Total scheduled future amortization of intangible assets	194,121
Amortization of intangible assets and below market lease liabilities
Amortization of intangible assets	34,401	37,386	$ 36,486
Lease Incentives [Member]
Intangible assets and below market lease liabilities, net [Abstract]
Deferred leasing costs, net/Total scheduled future amortization of intangible assets	10,915
Amortization of intangible assets and below market lease liabilities
Amortization of intangible assets	1,847	4,281	1,908
Acquisition-Related Intangible Assets (in Rental and Other Revenue) [Member]
Intangible assets and below market lease liabilities, net [Abstract]
Deferred leasing costs, net/Total scheduled future amortization of intangible assets	4,293
Amortization of intangible assets and below market lease liabilities
Amortization of intangible assets	1,137	1,290	1,677
Acquisition-Related Intangible Assets (in Rental Property and Other Expenses) [Member]
Amortization of intangible assets and below market lease liabilities
Amortization of intangible assets	510	557	557
Acquisition-Related Below Market Lease Liabilities [Member]
Intangible assets and below market lease liabilities, net [Abstract]
Acquisition-related below market lease liabilities, net	25,910
Amortization of intangible assets and below market lease liabilities
Amortization of acquisition-related below market lease liabilities	$ (6,031)	$ (6,633)	$ (6,085)

Intangible Assets and Below M_4

Intangible Assets and Below Market Lease Liabilities - Scheduled Future Amortization (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Scheduled future amortization of intangible assets [Abstract]
Deferred leasing costs, net/Total scheduled future amortization of intangible assets	$ 209,329	$ 231,347
Scheduled future amortization of below market lease liabilites [Abstract]
Total scheduled future amortization of below market lease liabilities	(25,910)	$ (31,957)
Deferred Leasing Costs and Acquisition-Related Intangible Assets [Member]
Scheduled future amortization of intangible assets [Abstract]
2021	34,063
2022	30,011
2023	26,496
2024	23,348
2025	19,224
Thereafter	60,979
Deferred leasing costs, net/Total scheduled future amortization of intangible assets	$ 194,121
Weighted average remaining amortization periods for intangible assets and liabilities [Abstract]
Intangible assets, weighted average useful life (in years)	8 years 3 months 18 days
Lease Incentives [Member]
Scheduled future amortization of intangible assets [Abstract]
2021	$ 1,563
2022	1,353
2023	1,279
2024	1,133
2025	1,064
Thereafter	4,523
Deferred leasing costs, net/Total scheduled future amortization of intangible assets	$ 10,915
Weighted average remaining amortization periods for intangible assets and liabilities [Abstract]
Intangible assets, weighted average useful life (in years)	9 years 6 months
Acquisition-Related Intangible Assets (in Rental and Other Revenue) [Member]
Scheduled future amortization of intangible assets [Abstract]
2021	$ 711
2022	601
2023	447
2024	373
2025	342
Thereafter	1,819
Deferred leasing costs, net/Total scheduled future amortization of intangible assets	$ 4,293
Weighted average remaining amortization periods for intangible assets and liabilities [Abstract]
Intangible assets, weighted average useful life (in years)	9 years 8 months 12 days
Acquisition-Related Below Market Lease Liabilities [Member]
Scheduled future amortization of below market lease liabilites [Abstract]
2021	$ (4,958)
2022	(3,977)
2023	(3,600)
2024	(2,932)
2025	(1,673)
Thereafter	(8,770)
Total scheduled future amortization of below market lease liabilities	$ (25,910)
Weighted average remaining amortization periods for intangible assets and liabilities [Abstract]
Below market lease liabilities, weighted average useful life (in years)	8 years 7 months 6 days

Mortgages and Notes Payable (De

Mortgages and Notes Payable (Details)	12 Months Ended
	Dec. 31, 2020USD ($)extension	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Jan. 29, 2021USD ($)
Debt Instrument [Line Items]
Mortgages and notes payable, net	$ 2,470,021,000	$ 2,543,710,000
Less-unamortized debt issuance costs	(13,981,000)	(13,018,000)
Scheduled future principal payments [Abstract]
2021	150,504,000
2022	200,686,000
2023	251,024,000
2024	1,124,000
2025	(185,000)
Thereafter	1,880,849,000
Less-unamortized debt issuance costs	(13,981,000)	(13,018,000)
Mortgages and notes payable, net	2,470,021,000	2,543,710,000
Gains/(losses) on debt extinguishment	$ (3,674,000)	(640,000)	$ 0
Lender covenant compliance to accelerate outstanding borrowings	51.00%
Cross-default minimum threshold	$ 30,000,000
Holders covenant compliance of bonds	25.00%
Uncured covenant compliance default period	60 days
Maximum liquidity requirements	1 year
Capitalized Interest [Abstract]
Capitalized Interest	$ 8,300,000	$ 5,600,000	$ 6,700,000
3.20% (3.363% effective rate) Notes due 2021 [Member]
Scheduled future principal payments [Abstract]
Early repayment of debt	150,000,000
Principal amount of debt	$ 150,000,000
Stated interest rate (in hundredths)	3.20%
Purchase price of debt (in hundredths)	101.908%
4.125% (4.271% effective rate) Notes due 2028 [Member]
Debt Instrument [Line Items]
Current interest rate (in hundredths)			4.271%
Scheduled future principal payments [Abstract]
Principal amount of debt			$ 350,000,000
Original issuance discount			$ 4,100,000
Stated interest rate (in hundredths)			4.125%
Debt issuance costs			$ 2,900,000
4.20% (4.234% effective rate) Notes due 2029 [Member]
Debt Instrument [Line Items]
Current interest rate (in hundredths)		4.234%
Scheduled future principal payments [Abstract]
Principal amount of debt		$ 350,000,000
Original issuance discount		$ 1,000,000
Stated interest rate (in hundredths)		4.20%
Debt issuance costs		$ 3,100,000
3.050% (3.079% effective rate) Notes due 2030 [Member]
Debt Instrument [Line Items]
Current interest rate (in hundredths)		3.079%
Scheduled future principal payments [Abstract]
Principal amount of debt		$ 400,000,000
Original issuance discount		$ 1,000,000
Stated interest rate (in hundredths)		3.05%
Debt issuance costs		$ 3,400,000
2.600% (2.645% effective rate) Notes due 2031 [Member]
Debt Instrument [Line Items]
Current interest rate (in hundredths)	2.645%
Scheduled future principal payments [Abstract]
Principal amount of debt	$ 400,000,000
Original issuance discount	$ 1,600,000
Stated interest rate (in hundredths)	2.60%
Debt issuance costs	$ 3,400,000
Variable Rate Term Loan due 2022 [Member]
Scheduled future principal payments [Abstract]
Early repayment of debt	$ 100,000,000	100,000,000
Principal amount of debt		200,000,000
Interest rate, basis spread (in hundredths)	1.10%
Gains/(losses) on debt extinguishment		(300,000)
Variable Rate Term Loan due 2022 [Member] | London Interbank Offered Rate (LIBOR) [Member]
Scheduled future principal payments [Abstract]
Interest rate basis	LIBOR
Revolving Credit Facility due 2022 [Member]
Scheduled future principal payments [Abstract]
Maximum borrowing capacity on revolving credit facility	$ 600,000,000
Additional borrowing capacity on revolving credit facility	$ 400,000,000
Number of additional maturity extensions | extension	2
Term of optional extensions	6 months
Annual facility fee (in hundredths)	0.20%
Amount outstanding on revolving credit facility	$ 0
Outstanding letters of credit on revolving credit facility	100,000
Unused borrowing capacity on revolving credit facility	$ 599,900,000
Interest rate, basis spread (in hundredths)	1.00%
Revolving Credit Facility due 2022 [Member] | London Interbank Offered Rate (LIBOR) [Member]
Scheduled future principal payments [Abstract]
Interest rate	LIBOR
Variable Rate Term Loan due 2020 [Member]
Scheduled future principal payments [Abstract]
Early repayment of debt		$ 225,000,000
Term of debt instrument (in years)		7 years
Interest rate, basis spread (in hundredths)		1.10%
Gains/(losses) on debt extinguishment		$ (400,000)
Variable Rate Term Loan due 2020 [Member] | London Interbank Offered Rate (LIBOR) [Member]
Scheduled future principal payments [Abstract]
Interest rate basis		LIBOR
7.50% Notes due 2018 [Member]
Debt Instrument [Line Items]
Current interest rate (in hundredths)			7.50%
Scheduled future principal payments [Abstract]
Principal amount of debt			$ 200,000,000
Secured indebtedness [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	$ 93,350,000	$ 95,303,000
Aggregate undepreciated book value of secured real estate assets	147,900,000
Annual repayments through principal amortization	2,000,000
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	93,350,000	95,303,000
Secured indebtedness [Member] | 4.0% Mortgage Loan Due 2029 [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	93,350,000	95,303,000
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	93,350,000	95,303,000
Unsecured indebtedness [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	2,390,652,000	2,461,425,000
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	2,390,652,000	2,461,425,000
Unsecured indebtedness [Member] | 3.20% (3.363% effective rate) Notes due 2021 [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	149,901,000	299,369,000
Unamortized discount	100,000	600,000
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	149,901,000	299,369,000
Unsecured indebtedness [Member] | 3.625% (3.752% effective rate) Notes due 2023 [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	249,464,000	249,201,000
Unamortized discount	500,000	800,000
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	249,464,000	249,201,000
Unsecured indebtedness [Member] | 3.875% (4.038% effective rate) Notes due 2027 [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	297,534,000	297,134,000
Unamortized discount	2,500,000	2,900,000
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	297,534,000	297,134,000
Unsecured indebtedness [Member] | 4.125% (4.271% effective rate) Notes due 2028 [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	347,035,000	346,621,000
Unamortized discount	3,000,000	3,400,000
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	347,035,000	346,621,000
Unsecured indebtedness [Member] | 4.20% (4.234% effective rate) Notes due 2029 [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	349,189,000	349,091,000
Unamortized discount	800,000	900,000
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	349,189,000	349,091,000
Unsecured indebtedness [Member] | 3.050% (3.079% effective rate) Notes due 2030 [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	399,106,000	399,009,000
Unamortized discount	900,000	1,000,000
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	399,106,000	399,009,000
Unsecured indebtedness [Member] | 2.600% (2.645% effective rate) Notes due 2031 [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	398,423,000	0
Unamortized discount	1,600,000
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	398,423,000	0
Unsecured indebtedness [Member] | Variable Rate Term Loan due 2022 [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	0	100,000,000
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	0	100,000,000
Unsecured indebtedness [Member] | Variable Rate Term Loan (2) due 2022 [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	$ 200,000,000	200,000,000
Interest rate under derivative instruments (in hundredths)	2.79%
Current interest rate (in hundredths)	1.25%
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	$ 200,000,000	200,000,000
Unsecured indebtedness [Member] | Revolving Credit Facility due 2022 [Member]
Debt Instrument [Line Items]
Mortgages and notes payable, net	0	221,000,000
Scheduled future principal payments [Abstract]
Mortgages and notes payable, net	$ 0	$ 221,000,000
Subsequent Event [Member] | Revolving Credit Facility due 2022 [Member]
Scheduled future principal payments [Abstract]
Amount outstanding on revolving credit facility				$ 0
Outstanding letters of credit on revolving credit facility				100,000
Unused borrowing capacity on revolving credit facility				$ 599,900,000

Derivative Financial Instrume_3

Derivative Financial Instruments (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Sep. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Derivatives, Fair Value [Line Items]
Expected increase/(decrease) to interest expense			$ 500
Derivatives designated as cash flow hedges in accounts payable, accrued expenses and other liabilities [Abstract]
Interest rate swaps			846	$ 154
Amount of unrealized gains/(losses) recognized in accumulated other comprehensive income/(loss) on derivatives (effective portion) [Abstract]
Interest rate swaps/Unrealized gain/(loss) reclassified to interest expense			(1,238)	(9,134)	$ 4,161
Amount of (gains)/losses reclassified out of accumulated other comprehensive income/(loss) into interest expense (effective portion) [Abstract]
Interest rate swaps			$ 247	(1,250)	(2,086)
3.050% (3.079% effective rate) Notes due 2030 [Member]
Derivatives, Fair Value [Line Items]
Principal amount of debt				$ 400,000
Stated interest rate (in hundredths)				3.05%
4.20% (4.234% effective rate) Notes due 2029 [Member]
Derivatives, Fair Value [Line Items]
Principal amount of debt				$ 350,000
Stated interest rate (in hundredths)				4.20%
4.125% (4.271% effective rate) Notes due 2028 [Member]
Derivatives, Fair Value [Line Items]
Principal amount of debt					$ 350,000
Stated interest rate (in hundredths)					4.125%
Forward Starting Swaps [Member]
Derivatives, Fair Value [Line Items]
Amount of borrowings outstanding, subject to swaps				$ 150,000	$ 225,000	$ 150,000
Underlying treasury rate term (in years)				10 years	10 years	10 years
Weighted average interest rate under derivative instruments (in hundredths)				1.87%	2.86%	2.44%
Gain on hedge ineffectiveness in interest expense					$ 200
Amount of unrealized gains/(losses) recognized in accumulated other comprehensive income/(loss) on derivatives (effective portion) [Abstract]
Interest rate swaps/Unrealized gain/(loss) reclassified to interest expense	$ (6,600)	$ (5,100)			$ 7,000
Floating to Fixed Interest Rate Swaps (2017) [Member]
Derivatives, Fair Value [Line Items]
Amount of borrowings outstanding, subject to swaps						$ 50,000
Underlying treasury rate term (in years)						1 month
Weighted average interest rate under derivative instruments (in hundredths)						1.693%
Floating to Fixed Interest Rate Swaps [Member]
Derivatives, Fair Value [Line Items]
Amount of borrowings outstanding, subject to swaps				$ 225,000
Underlying treasury rate term (in years)				1 month
Weighted average interest rate under derivative instruments (in hundredths)				1.678%

Commitments and Contingencies (

Commitments and Contingencies (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Lease and Contractual Commitments [Abstract]
Lease and contractual commitments	$ 212,900
Accrued amount of lease and contractual commitments	58,000
Contingent Consideration [Abstract]
Asset acquisition, contingent consideration liability	0	$ 1,200	$ 0
Asset Acquisition Contingent Consideration [Member]
Contingent Consideration [Abstract]
Asset acquisition, contingent consideration liability	$ 800	$ 5,300

Noncontrolling Interests (Detai

Noncontrolling Interests (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Noncontrolling Interests in the Operating Partnership [Roll Forward]
Noncontrolling interests in the Operating Partnership, beginning balance				$ 133,216					$ 133,216
Adjustment of noncontrolling interests in the Operating Partnership to fair value									(30,617)	$ 29,557	$ (33,427)
Conversions of Common Units to Common Stock									(145)	(663)	(4,043)
Net income attributable to noncontrolling interests in the Operating Partnership	$ 2,254	$ 1,107	$ 1,017	4,960	$ 1,577	$ 737	$ 1,044	$ 193	9,338	3,551	4,588
Distributions to noncontrolling interests in the Operating Partnership									(5,456)	(5,189)	(5,167)
Noncontrolling interests in the Operating Partnership, ending balance	112,499				133,216				112,499	133,216
Net Income Available for Common Stockholders and Transfers From Noncontrolling Interests in the Operating Partnership
Net income available for common stockholders	$ 82,109	$ 40,304	$ 37,028	185,473	59,852	$ 27,901	$ 39,422	7,255	$ 344,914	134,430	169,343
Ownership Percentage [Member]
Noncontrolling Interests in Consolidated Affiliates
Consolidated joint venture, partner's interest (in hundredths)	50.00%								50.00%
Highwoods Properties, Inc. [Member]
Noncontrolling Interests in the Operating Partnership [Roll Forward]
Noncontrolling interests in the Operating Partnership, beginning balance				$ 133,216				$ 105,960	$ 133,216	105,960
Adjustment of noncontrolling interests in the Operating Partnership to fair value									(30,617)	29,557
Isssuances of Common Units									6,163	0
Conversions of Common Units to Common Stock									(145)	(663)
Net income attributable to noncontrolling interests in the Operating Partnership									9,338	3,551
Distributions to noncontrolling interests in the Operating Partnership									(5,456)	(5,189)
Noncontrolling interests in the Operating Partnership, ending balance	$ 112,499				$ 133,216				112,499	133,216	105,960
Net Income Available for Common Stockholders and Transfers From Noncontrolling Interests in the Operating Partnership
Net income available for common stockholders									344,914	134,430	169,343
Increase in additional paid in capital from conversions of Common Units to Common Stock									145	663	4,043
Issuances of Common Units									(6,163)	0	0
Change from net income available for common stockholders and transfers from noncontrolling interests									$ 338,896	$ 135,093	$ 173,386
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%				20.00%	20.00%

Disclosure About Fair Value o_3

Disclosure About Fair Value of Financial Instruments - Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Jun. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018	Dec. 31, 2017
Assets:
Mortgages and notes receivable, at fair value	$ 1,341		$ 1,501
Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets)	2,573		2,345
Total Assets	3,914		3,846
Liabilities:
Mortgages and notes payable, net, at fair value	2,639,163		2,615,776
Interest rate swaps (in accounts payable, accrued expenses and other liabilities)	846		154
Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities)	2,573		2,345			$ 1,849	$ 2,388
Total Liabilities	2,642,582		2,618,275
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)	2,573		2,345
Total Assets	2,573		2,345
Liabilities:
Mortgages and notes payable, net, at fair value	0		0
Interest rate swaps (in accounts payable, accrued expenses and other liabilities)	0		0
Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities)	2,573		2,345
Total Liabilities	2,573		2,345
Level 2 [Member]
Assets:
Mortgages and notes receivable, at fair value	1,341		1,501
Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets)	0		0
Total Assets	1,341		1,501
Liabilities:
Mortgages and notes payable, net, at fair value	2,639,163		2,615,776
Interest rate swaps (in accounts payable, accrued expenses and other liabilities)	846		154
Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities)	0		0
Total Liabilities	2,640,009		2,615,930
Level 3 [Member]
Liabilities:
Impaired real estate assets		$ 2,100		$ 7,600	$ 700
Highwoods Properties, Inc. [Member]
Assets:
Noncontrolling Interests in the Operating Partnership	112,499		133,216
Highwoods Properties, Inc. [Member] | Level 1 [Member]
Assets:
Noncontrolling Interests in the Operating Partnership	112,499		133,216
Highwoods Properties, Inc. [Member] | Level 2 [Member]
Assets:
Noncontrolling Interests in the Operating Partnership	$ 0		$ 0

Equity (Details)

Equity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Class of Stock [Line Items]
Number of trading days preceeding Redemption Notice Date (in days)	10 days
Dividends, Common Stock [Abstract]
Ordinary dividend	$ 1.65	$ 1.64	$ 1.48
Capital gains	0.25	0.13	0.31
Return of capital	0.02	0.13	0.06
Total taxability of dividends per share	$ 1.92	$ 1.90	1.85
Dividends, Preferred Stock [Abstract]
Number of shares outstanding, Preferred Stock (in shares)	28,826	28,859
Carrying value, Preferred Stock	$ 28,826	$ 28,859
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	74.96	79.90	71.22
Capital gains	11.29	6.35	15.03
Total taxability of dividends per share	$ 86.25	$ 86.25	86.25
Issuance date, Preferred Stock/Unit	Feb. 12, 1997	Feb. 12, 1997
Liquidation preference per share, Preferred Stock (in dollars per share)	$ 1,000	$ 1,000
Optional redemption date, Preferred Stock/Unit	Feb. 12, 2027	Feb. 12, 2027
Annual dividends payable per share, Preferred Stock/Unit (in dollars per share)	$ 86.25	$ 86.25	86.25
Highwoods Properties, Inc. [Member]
Class of Stock [Line Items]
Possible future share issuance authorized under charter	96,100,000
Dividends declared per share of Common Stock (in dollars per share)	$ 1.92	1.90	1.85
Highwoods Properties, Inc. [Member] | Series A Cumulative Redeemable Preferred Shares [Member]
Dividends, Preferred Stock [Abstract]
Total taxability of dividends per share	86.25	86.25	86.25
Annual dividends payable per share, Preferred Stock/Unit (in dollars per share)	86.25	86.25	86.25
Highwoods Realty Limited Partnership [Member]
Class of Stock [Line Items]
Distributions declared per share of Common Unit (in dollars per share)	$ 1.92	$ 1.90	1.85
Dividends, Preferred Stock [Abstract]
Number of units outstanding, Preferred Units (in shares)	28,826	28,859
Carrying value, Preferred units	$ 28,826	$ 28,859
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

Employee Benefit Plans (Details

Employee Benefit Plans (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Retirement Benefits [Abstract]
Outstanding stock options and warrants	552,373	599,902
Possible future share issuance authorized under equity incentive plans	1,926,324	2,016,659
Total shares reserved for future issuance	2,478,697	2,616,561
Possible future share issuance authorized under equity incentive plan restricted stock	300,000
Stock-based compensation expense	$ 6,210	$ 7,180	$ 7,466
Total unrecognized stock-based compensation costs	$ 5,200
Weighted average remaining term of vesting periods (in years)	1 year 10 months 24 days
401(k) Savings Plan [Abstract]
401(k) employer match percentage	75.00%
401(k) employer match salary limit percentage	6.00%
401(k) employer contribution	$ 1,400	1,500	1,400
Retirement Plan [Abstract]
Retirement plan qualification years of service (in years)	30 years
Retirement plan qualification age	55 years
Retirement plan qualification minimum years of service (in years)	10 years
Retirement plan immediate vesting percentage	100.00%
Deferred Compensation [Abstract]
Marketable securities of non-qualified deferred compensation plan fair value disclosure	$ 2,573	2,345
Non Qualified Deferred Compensation Obligation Fair Value Disclosure [Roll Forward]
Beginning deferred compensation liability	2,345	1,849	2,388
Mark to market adjustment to deferred compensation (in general and administrative expenses)	228	496	(182)
Distributions from deferred compensation plans	0	0	(357)
Ending deferred compensation liability	$ 2,573	$ 2,345	$ 1,849
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	47,208	38,618	38,951
Discount percentage on newly issues shares	15.00%
Discount on newly issued shares expensed as additional compensation	$ 300	$ 300	$ 300
Minimum [Member]
Retirement Benefits [Abstract]
Officer cash bonus target	35.00%
Officer cash bonus performance factor	0.00%
Non officer management cash bonus target	10.00%
Maximum [Member]
Retirement Benefits [Abstract]
Officer cash bonus target	130.00%
Officer cash bonus performance factor	200.00%
Non officer management cash bonus target	30.00%
2017 Plan [Member]
Restricted Stock Activity Rollforward [Abstract]
Forfeited (in shares)	(46,852)
2016 Plan [Member]
Restricted Stock Activity Rollforward [Abstract]
Forfeited (in shares)		(9,521)
2015 Plan [Member]
Restricted Stock Activity Rollforward [Abstract]
Forfeited (in shares)			(13,707)
Stock Options [Member]
Stock Option Activity Rollforward [Abstract]
Balance of options outstanding (in shares)	584,902	596,518	640,822
Options exercised (in shares)	(42,163)	(9,026)	(44,304)
Options forfeited (in shares)	(5,366)	(2,590)
Balance of options outstanding (in shares)	537,373	584,902	596,518
Stock Option Activity, Weighted Average Exercise Price Rollforward [Abstract]
Options outstanding, weighted average exercise price (in dollars per share)	$ 45.75	$ 45.67	$ 45.29
Options exercised, weighted average exercise price (in dollars per share)	41.10	39.53	40.15
Options forfeited, weighted average exercise price (in dollars per share)	50.82	48.79
Options outstanding, weighted average exercise price (in dollars per share)	$ 46.07	$ 45.75	$ 45.67
Weighted average remaining life of outstanding options (in years)	5 years
Options exercisable (in shares)	496,656
Weighted average exercise price (in dollars per share)	$ 45.54
Weighted average remaining life (in years)	4 years 10 months 24 days
Intrinsic value	$ 100
Amount of exercisable options with prices higher than the market price of Company Common Stock	436,880
Cash received or receivable from options exercised	$ 1,900	$ 400	$ 1,900
Total instrinsic value of options exercised	400	100	400
Total intrinsic value of options outstanding	$ 100	$ 2,400	$ 100
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)	218,151	191,239	172,246
Awarded and issued (in shares)	83,116	103,590	94,984
Vested (in shares)	(88,326)	(73,036)	(73,307)
Forfeited (in shares)	(3,751)	(3,642)	(2,684)
Balance of restricted stock outstanding (in shares)	209,190	218,151	191,239
Restricted Stock Activity, Weighted Average Grant Date Fair Value Rollforward [Abstract]
Restricted stock outstanding, weighted average grant date fair value (in dollars per share)	$ 45.73	$ 45.62	$ 46.46
Awarded and issued, weighted average grant date fair value (in dollars per share)	44.88	45.98	43.01
Vested, weighted average grant date fair value (in dollars per share)	45.86	45.79	44.19
Forfeited, weighted average grant date fair value (in dollars per share)	45.78	46.07	45.89
Restricted stock outstanding, weighted average grant date fair value (in dollars per share)	45.34	45.73	45.62
Grant date fair value of restricted stock (in dollars per share)	$ 44.88	$ 45.98	$ 43.01
Fair value at grant date of restricted stock issued	$ 3,700	$ 4,800	$ 4,100
Vesting date fair value of restricted stock	$ 3,900	$ 3,300	$ 3,200
Total Return-Based Restricted Stock [Member]
Retirement Benefits [Abstract]
Vesting term of stock options issued/Period for absolute total return of restricted stock issued (in years)	3 years
Assumptions Used in Determining Fair Values of Restricted Stock Granted:
Risk free interest rate	0.90%	2.40%	2.30%
Common stock dividend yield	3.90%	4.40%	3.90%
Expected volatility rate	20.40%	27.30%	41.10%
Dividends paid for previous year	1 year
Restricted Stock Activity Rollforward [Abstract]
Balance of restricted stock outstanding (in shares)	208,848	180,094	160,724
Awarded and issued (in shares)	66,188	87,344	77,456
Vested (in shares)		(45,901)	(41,160)
Forfeited (in shares)	(49,852)	(12,689)	(16,926)
Balance of restricted stock outstanding (in shares)	225,184	208,848	180,094
Restricted Stock Activity, Weighted Average Grant Date Fair Value Rollforward [Abstract]
Restricted stock outstanding, weighted average grant date fair value (in dollars per share)	$ 42.22	$ 43.34	$ 44.72
Awarded and issued, weighted average grant date fair value (in dollars per share)	38.31	39.42	40.81
Vested, weighted average grant date fair value (in dollars per share)		43.68	45.61
Forfeited, weighted average grant date fair value (in dollars per share)	51.93	43.58	45.24
Restricted stock outstanding, weighted average grant date fair value (in dollars per share)	$ 39.53	$ 42.22	43.34
Company total return, total return-based restricted stock	100.00%
Vesting percentage, total return-based restricted stock	100.00%	75.00%
Grant date fair value of restricted stock (in dollars per share)	$ 38.31	$ 39.42	$ 40.81
Fair value at grant date of restricted stock issued	$ 2,500	$ 3,400	$ 3,200
Vesting date fair value of restricted stock	$ 0	$ 2,100	$ 1,800
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)	$ 38.31	$ 39.42	$ 40.81
Grant date fair value of restricted stock (in dollars per share)	$ 38.31	$ 39.42	$ 40.81

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income/(Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Accumulated Other Comprehensive Income/(Loss) Calculation [Roll Forward]
Beginning balance	$ (471)
Ending balance	(1,462)	$ (471)
Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income/(Loss) Calculation [Roll Forward]
Beginning balance	(471)	9,913
Unrealized losses on cash flow hedges	(1,238)	(9,134)
Amortization reclassified out of accumulated other comprehensive income/(loss)	$ 247	(1,250)
Ending balance		$ (471)

Real Estate and Other Assets _3

Real Estate and Other Assets Held For Sale (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Assets, held for sale [Abstract]
Land	$ 2,612	$ 4,815
Building and tenant improvements	12,238	29,581
Less accumulated depreciation	(3,577)	(16,775)
Net real estate assets	11,273	17,621
Accrued straight-line rents receivable, net	0	2,073
Deferred leasing costs, net	87	1,096
Real estate and other assets, net, held for sale	$ 11,360	$ 20,790

Earnings Per Share and Per Un_3

Earnings Per Share and Per Unit (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Earnings per Common Share/Unit - basic: [Abstract]
Net income	$ 85,287	$ 42,331	$ 38,956	$ 191,340	$ 62,346	$ 29,557	$ 41,394	$ 8,386	$ 357,914	$ 141,683	$ 177,630
Net (income) attributable to noncontrolling interests in the Operating Partnership									(9,338)	(3,551)	(4,588)
Net (income) attributable to noncontrolling interests in consolidated affiliates	(302)	(298)	(289)	(285)	(295)	(297)	(306)	(316)	(1,174)	(1,214)	(1,207)
Dividends on Preferred Stock	(622)	(622)	(622)	(622)	(622)	(622)	(622)	(622)	(2,488)	(2,488)	(2,492)
Net income available for common stockholders	$ 82,109	$ 40,304	$ 37,028	$ 185,473	$ 59,852	$ 27,901	$ 39,422	$ 7,255	$ 344,914	$ 134,430	$ 169,343
Denominator:
Denominator for basic earnings per Common Share - weighted average shares (in shares)									103,876	103,692	103,439
Earnings per Common Share - basic:
Net income available for common stockholders (in dollars per share)	$ 0.79	$ 0.39	$ 0.36	$ 1.79	$ 0.58	$ 0.27	$ 0.38	$ 0.07	$ 3.32	$ 1.30	$ 1.64
Earnings per Common Share/Unit - diluted: [Abstract]
Net income	$ 85,287	$ 42,331	$ 38,956	$ 191,340	$ 62,346	$ 29,557	$ 41,394	$ 8,386	$ 357,914	$ 141,683	$ 177,630
Net (income) attributable to noncontrolling interests in consolidated affiliates	(302)	(298)	(289)	(285)	(295)	(297)	(306)	(316)	(1,174)	(1,214)	(1,207)
Dividends on Preferred Stock	$ (622)	$ (622)	$ (622)	$ (622)	$ (622)	$ (622)	$ (622)	$ (622)	(2,488)	(2,488)	(2,492)
Net income available for common stockholders before net (income) attributable to noncontrolling interests in the Operating Partnership									$ 354,252	$ 137,981	$ 173,931
Denominator:
Denominator for basic earnings per Common Share - weighted average shares (in shares)									103,876	103,692	103,439
Stock options using the treasury method									8	22	33
Noncontrolling interests Common Units									2,830	2,731	2,796
Denominator for diluted earnings per Common Share - adjusted weighted average shares and assumed conversions (in shares)									106,714	106,445	106,268
Earnings per Common Share - diluted:
Net income available for common stockholders (in dollars per share)	$ 0.79	$ 0.39	$ 0.36	$ 1.79	$ 0.58	$ 0.27	$ 0.38	$ 0.07	$ 3.32	$ 1.30	$ 1.64
Highwoods Realty Limited Partnership [Member]
Earnings per Common Share/Unit - basic: [Abstract]
Net income	$ 85,287	$ 42,331	$ 38,956	$ 191,340	$ 62,346	$ 29,557	$ 41,394	$ 8,386	$ 357,914	$ 141,683	$ 177,630
Net (income) attributable to noncontrolling interests in consolidated affiliates	(302)	(298)	(289)	(285)	(295)	(297)	(306)	(316)	(1,174)	(1,214)	(1,207)
Distributions on Preferred Units	(622)	(622)	(622)	(622)	(622)	(622)	(622)	(622)	(2,488)	(2,488)	(2,492)
Net income available for common unitholders	$ 84,363	$ 41,411	$ 38,045	$ 190,433	$ 61,429	$ 28,638	$ 40,466	$ 7,448	$ 354,252	$ 137,981	$ 173,931
Denominator:
Denominator for basic earnings per Common Unit - weighted average units (in shares)									106,297	106,014	105,826
Earnings per Common Unit - basic:
Net income available for common unitholders (in dollars per share)	$ 0.79	$ 0.39	$ 0.36	$ 1.79	$ 0.58	$ 0.27	$ 0.38	$ 0.07	$ 3.33	$ 1.30	$ 1.64
Earnings per Common Share/Unit - diluted: [Abstract]
Net income	$ 85,287	$ 42,331	$ 38,956	$ 191,340	$ 62,346	$ 29,557	$ 41,394	$ 8,386	$ 357,914	$ 141,683	$ 177,630
Net (income) attributable to noncontrolling interests in consolidated affiliates	(302)	(298)	(289)	(285)	(295)	(297)	(306)	(316)	(1,174)	(1,214)	(1,207)
Distributions on Preferred Units	(622)	(622)	(622)	(622)	(622)	(622)	(622)	(622)	(2,488)	(2,488)	(2,492)
Net income available for common unitholders	$ 84,363	$ 41,411	$ 38,045	$ 190,433	$ 61,429	$ 28,638	$ 40,466	$ 7,448	$ 354,252	$ 137,981	$ 173,931
Denominator:
Denominator for basic earnings per Common Unit - weighted average units (in shares)									106,297	106,014	105,826
Stock options using the treasury method									8	22	33
Denominator for diluted earnings per Common Unit - adjusted weighted average units and assumed conversions (in shares)									106,305	106,036	105,859
Earnings per Common Unit - diluted:
Net income available for common unitholders (in dollars per share)	$ 0.79	$ 0.39	$ 0.36	$ 1.79	$ 0.58	$ 0.27	$ 0.38	$ 0.07	$ 3.33	$ 1.30	$ 1.64

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Highwoods Properties, Inc. [Member]
Income Tax Disclosure [Line Items]
Minimum dividend required to maintain REIT status (in dollars per share)	$ 1.41	$ 1.44	$ 1.26
Tax basis of assets	$ 4,700,000	$ 4,700,000
Tax basis of liabilities	2,800,000	2,900,000
Income Tax Expense/(Benefit) [Abstract]
Current federal tax expense	110	202	$ 133
Current state tax expense	240	148	112
Current tax expense	350	350	245
Deferred federal tax expense/(benefit)	(9)	14	(95)
Deferred state tax benefit	(4)	(120)	(68)
Deferred tax benefit	(13)	(106)	(163)
Total income tax expense	337	244	$ 82
Net deferred tax liabilities	100	100
Highwoods Realty Limited Partnership [Member]
Income Tax Disclosure [Line Items]
Tax basis of assets	4,600,000	4,700,000
Tax basis of liabilities	$ 2,800,000	$ 2,900,000

Segment Information (Details)

Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Abstract]
Rental and other revenues	$ 179,904	$ 181,043	$ 183,153	$ 192,800	$ 192,071	$ 187,475	$ 184,070	$ 172,363	$ 736,900	$ 735,979	$ 720,035
Total net operating income									505,075	487,468	477,620
Reconciliation to net income:
Depreciation and amortization									(241,585)	(254,504)	(229,955)
Impairments of real estate assets									(1,778)	(5,849)	(423)
General and administrative expenses									(41,031)	(44,067)	(40,006)
Interest expense									(80,962)	(81,648)	(71,422)
Other income/(loss)									(1,707)	(2,510)	1,940
Gains on disposition of property									215,897	39,517	37,638
Equity in earnings of unconsolidated affiliates									4,005	3,276	2,238
Net income	85,287	$ 42,331	$ 38,956	$ 191,340	62,346	$ 29,557	$ 41,394	$ 8,386	357,914	141,683	177,630
Total Assets	5,209,417				5,138,244				5,209,417	5,138,244
Office Atlanta, GA [Member]
Segment Reporting Information [Abstract]
Rental and other revenues									146,704	151,279	141,337
Total net operating income									95,448	97,019	87,503
Reconciliation to net income:
Total Assets	1,011,807				1,040,869				1,011,807	1,040,869
Office Charlotte, NC [Member]
Segment Reporting Information [Abstract]
Rental and other revenues									35,733	4,650	0
Total net operating income									28,431	3,791	0
Reconciliation to net income:
Total Assets	443,051				425,045				443,051	425,045
Office Nashville, TN [Member]
Segment Reporting Information [Abstract]
Rental and other revenues									138,089	133,867	121,836
Total net operating income									99,901	97,386	88,554
Reconciliation to net income:
Total Assets	1,191,219				1,045,125				1,191,219	1,045,125
Office Orlando, FL [Member]
Segment Reporting Information [Abstract]
Rental and other revenues									49,459	52,679	53,771
Total net operating income									29,546	32,062	32,841
Reconciliation to net income:
Total Assets	289,129				289,743				289,129	289,743
Office Pittsburgh, PA [Member]
Segment Reporting Information [Abstract]
Rental and other revenues									58,518	60,755	61,177
Total net operating income									35,631	36,249	36,233
Reconciliation to net income:
Total Assets	313,783				323,792				313,783	323,792
Office Raleigh, NC [Member]
Segment Reporting Information [Abstract]
Rental and other revenues									128,189	122,173	118,352
Total net operating income									95,926	88,402	86,053
Reconciliation to net income:
Total Assets	839,831				830,128				839,831	830,128
Office Richmond, VA [Member]
Segment Reporting Information [Abstract]
Rental and other revenues									48,079	49,428	45,729
Total net operating income									33,667	33,756	31,276
Reconciliation to net income:
Total Assets	240,976				246,546				240,976	246,546
Office Tampa, FL [Member]
Segment Reporting Information [Abstract]
Rental and other revenues									99,520	86,431	102,404
Total net operating income									67,059	50,339	65,819
Reconciliation to net income:
Total Assets	556,951				521,620				556,951	521,620
Other Segment [Member]
Segment Reporting Information [Abstract]
Rental and other revenues									32,609	74,717	75,429
Total net operating income									19,466	48,464	49,341
Reconciliation to net income:
Total Assets	322,670				415,376				322,670	415,376
Office Total Segment [Member]
Segment Reporting Information [Abstract]
Rental and other revenues									704,291	661,262	644,606
Total net operating income									485,609	439,004	$ 428,279
Reconciliation to net income:
Total Assets	$ 4,886,747				$ 4,722,868				$ 4,886,747	$ 4,722,868

Quarterly Financial Data (Una_3

Quarterly Financial Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Quarterly Financial Data [Line Items]
Rental and other revenues	$ 179,904	$ 181,043	$ 183,153	$ 192,800	$ 192,071	$ 187,475	$ 184,070	$ 172,363	$ 736,900	$ 735,979	$ 720,035
Net income	85,287	42,331	38,956	191,340	62,346	29,557	41,394	8,386	357,914	141,683	177,630
Net (income) attributable to noncontrolling interests in the Operating Partnership	(2,254)	(1,107)	(1,017)	(4,960)	(1,577)	(737)	(1,044)	(193)	(9,338)	(3,551)	(4,588)
Net (income) attributable to noncontrolling interests in consolidated affiliates	(302)	(298)	(289)	(285)	(295)	(297)	(306)	(316)	(1,174)	(1,214)	(1,207)
Dividends on Preferred Stock	(622)	(622)	(622)	(622)	(622)	(622)	(622)	(622)	(2,488)	(2,488)	(2,492)
Net income available for common stockholders	$ 82,109	$ 40,304	$ 37,028	$ 185,473	$ 59,852	$ 27,901	$ 39,422	$ 7,255	$ 344,914	$ 134,430	$ 169,343
Earnings per Common Share - basic:
Net income available for common stockholders (in dollars per share)	$ 0.79	$ 0.39	$ 0.36	$ 1.79	$ 0.58	$ 0.27	$ 0.38	$ 0.07	$ 3.32	$ 1.30	$ 1.64
Earnings per Common Share - diluted:
Net income available for common stockholders (in dollars per share)	$ 0.79	$ 0.39	$ 0.36	$ 1.79	$ 0.58	$ 0.27	$ 0.38	$ 0.07	$ 3.32	$ 1.30	$ 1.64
Highwoods Properties, Inc. [Member]
Quarterly Financial Data [Line Items]
Net (income) attributable to noncontrolling interests in the Operating Partnership									$ (9,338)	$ (3,551)
Net income available for common stockholders									344,914	134,430	$ 169,343
Highwoods Realty Limited Partnership [Member]
Quarterly Financial Data [Line Items]
Rental and other revenues	$ 179,904	$ 181,043	$ 183,153	$ 192,800	$ 192,071	$ 187,475	$ 184,070	$ 172,363	736,900	735,979	720,035
Net income	85,287	42,331	38,956	191,340	62,346	29,557	41,394	8,386	357,914	141,683	177,630
Net (income) attributable to noncontrolling interests in consolidated affiliates	(302)	(298)	(289)	(285)	(295)	(297)	(306)	(316)	(1,174)	(1,214)	(1,207)
Distributions on Preferred Units	(622)	(622)	(622)	(622)	(622)	(622)	(622)	(622)	(2,488)	(2,488)	(2,492)
Net income available for common unitholders	$ 84,363	$ 41,411	$ 38,045	$ 190,433	$ 61,429	$ 28,638	$ 40,466	$ 7,448	$ 354,252	$ 137,981	$ 173,931
Earnings per Common Unit - basic:
Net income available for common unitholders (in dollars per share)	$ 0.79	$ 0.39	$ 0.36	$ 1.79	$ 0.58	$ 0.27	$ 0.38	$ 0.07	$ 3.33	$ 1.30	$ 1.64
Earnings per Common Unit - diluted:
Net income available for common unitholders (in dollars per share)	$ 0.79	$ 0.39	$ 0.36	$ 1.79	$ 0.58	$ 0.27	$ 0.38	$ 0.07	$ 3.33	$ 1.30	$ 1.64

Subsequent Events (Details)

Subsequent Events (Details) $ / shares in Units, $ in Thousands	Feb. 02, 2021$ / shares	Jan. 15, 2021USD ($)	Jan. 21, 2021USD ($)ft²propertyUnit	Dec. 31, 2020USD ($)ft²$ / shares	Dec. 31, 2019USD ($)$ / shares	Dec. 31, 2018USD ($)$ / shares
Subsequent Event [Line Items]
Gains on disposition of property				$ 215,897	$ 39,517	$ 37,638
Rentable square feet of commercial real estate (in square feet) | ft²				27,200,000
Percentage of equity interest in joint ventures, maximum				50.00%
Highwoods Properties, Inc. [Member]
Subsequent Event [Line Items]
Dividends declared per share of Common Stock (in dollars per share) | $ / shares				$ 1.92	$ 1.90	$ 1.85
Highwoods Properties, Inc. [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Dividends declared per share of Common Stock (in dollars per share) | $ / shares	$ 0.48
2021 Dispositions [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Sale price of disposition		$ 30,700
Gains on disposition of property		$ 18,900
Forum Portfolio Acquisition [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Percentage of partner's interest in asset acquired (in hundredths)			75.00%
Number of buildings sold | propertyUnit			5
Rentable square feet of commercial real estate (in square feet) | ft²			636,000
Purchase price of acquisition			$ 131,300
Percentage of equity interest in joint ventures, maximum			25.00%

Schedule III (Details)

Schedule III (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	$ 5,776,804	$ 5,776,804	$ 5,173,754	$ 5,594,833	$ 5,776,804	$ 5,296,551
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	1,421,956	1,296,562	1,211,728	1,421,956	1,405,341	1,296,562
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Federal Income Tax Basis				5,500,000
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	5,776,804	5,776,804	5,173,754	5,594,833	5,776,804	5,296,551
Development in process exclusive of land included in Schedule III				259,681	172,706	165,537
Real estate assets, net, held for sale				(14,850)	(34,396)	0
Total real estate assets				5,839,664	5,915,114	5,462,088
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	1,421,956	1,296,562	1,211,728	1,421,956	1,405,341	1,296,562
Real estate assets, net, held for sale				(3,577)	(16,775)	0
Total accumulated depreciation				1,418,379	$ 1,388,566	$ 1,296,562
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, beginning balance	5,776,804	5,296,551	5,173,754
Acquisitions, development and improvements	259,470	677,842	274,863
Cost of real estate sold and retired	(441,441)	(197,589)	(152,066)
Real estate assets, ending balance	5,594,833	5,776,804	5,296,551
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, beginning balance	1,405,341	1,296,562	1,211,728
Depreciation expense	204,585	214,682	191,035
Real estate sold and retired	(187,970)	(105,903)	(106,201)
Accumulated depreciation, ending balance	1,421,956	$ 1,405,341	$ 1,296,562
Atlanta, GA - 1700 Century Circle [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				2,482
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				2
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				1,478
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				2
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				3,960
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,962			3,962
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	1,925			1,925
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	3,962			3,962
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	1,925			1,925
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	3,962
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	1,925
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				11,265
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				40,346
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	41,790			41,790
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	24,040			24,040
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	41,790			41,790
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	24,040			24,040
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	41,790
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	24,040
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				15,166
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,167
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				15,166
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	16,333			16,333
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	6,729			6,729
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	16,333			16,333
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	6,729			6,729
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	16,333
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	6,729
Atlanta, GA - 1875 Century Boulevard [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				8,924
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				8,329
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				17,253
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	17,253			17,253
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	8,706			8,706
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	17,253			17,253
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	8,706			8,706
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	17,253
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	8,706
Atlanta, GA - 1900 Century Boulevard [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				4,744
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				710
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				5,454
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,454			5,454
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,341			5,341
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	5,454			5,454
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,341			5,341
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	5,454
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	5,341
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				9,059
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				23,491
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	23,491			23,491
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	11,732			11,732
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	23,491			23,491
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	11,732			11,732
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	23,491
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	11,732
Atlanta, GA - 2400 Century Center [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				406
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				14,776
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				406
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				14,776
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	15,182			15,182
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	7,686			7,686
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	15,182			15,182
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	7,686			7,686
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	7,686
Atlanta, GA - 2500 Century Center [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				328
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				12,684
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				328
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				12,684
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	13,012			13,012
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,589			4,589
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	13,012			13,012
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,589			4,589
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	13,012
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	4,589
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			6,447
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,424			2,424
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	6,447			6,447
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,424			2,424
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	2,424
Atlanta, GA - 2600 Century Parkway [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				10,679
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				4,244
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				14,923
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	14,923			14,923
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	7,898			7,898
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	14,923			14,923
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	7,898			7,898
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	14,923
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	7,898
Atlanta, GA - 2635 Century Parkway [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				21,643
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				20,514
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				42,157
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	42,157			42,157
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	18,043			18,043
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	42,157			42,157
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	18,043			18,043
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	42,157
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	18,043
Atlanta, GA - 2800 Century Parkway [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				20,449
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				10,653
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				31,102
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	31,102			31,102
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	17,782			17,782
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	31,102			31,102
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	17,782			17,782
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	31,102
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	17,782
Atlanta, GA - 50 Glenlake [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				2,500
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				20,006
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				4,308
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				2,500
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				24,314
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	26,814			26,814
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	13,172			13,172
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	26,814			26,814
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	13,172			13,172
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	26,814
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	13,172
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				5,022
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,290
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				13,589
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	14,879			14,879
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	6,872			6,872
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	14,879			14,879
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	6,872			6,872
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	14,879
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	6,872
Atlanta, GA - Century Plaza II [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,380
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				7,733
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				3,108
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,380
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				10,841
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,221			12,221
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,559			5,559
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	12,221			12,221
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,559			5,559
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	12,221
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	5,559
Atlanta, GA - 5405 Windward Parkway [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				3,342
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				32,111
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				19,729
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				3,342
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				51,840
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	55,182			55,182
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	26,543			26,543
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	55,182			55,182
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	26,543			26,543
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	55,182
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	26,543
Atlanta, GA - Riverpoint - Land [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				7,250
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				(4,439)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				718
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				2,811
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				718
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,529			3,529
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	185			185
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	3,529			3,529
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	185			185
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	3,529
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	185
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				26,071
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				5,756
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				90,984
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	96,740			96,740
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	23,842			23,842
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	96,740			96,740
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	23,842			23,842
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	96,740
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	23,842
Atlanta, GA - Tradeport - Land [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				5,243
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				(4,819)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				424
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	424			424
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	424			424
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	424
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	0
Atlanta, GA - Two Alliance Center [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				9,579
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				125,549
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				906
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				126,455
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	136,034			136,034
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	33,618			33,618
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	136,034			136,034
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	33,618			33,618
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	136,034
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	33,618
Atlanta, GA - One Alliance Center [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				14,775
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				123,071
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				17,587
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				14,775
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				140,658
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	155,433			155,433
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	32,298			32,298
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	155,433			155,433
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	32,298			32,298
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	155,433
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	32,298
Atlanta, GA - 10 Glenlake North [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				5,349
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				26,334
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				11,303
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				37,637
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	42,986			42,986
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	10,897			10,897
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	42,986			42,986
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	10,897			10,897
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	42,986
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	10,897
Atlanta, GA - 10 Glenlake South [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				5,103
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				22,811
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				3,523
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				5,103
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				26,334
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	31,437			31,437
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	7,056			7,056
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	31,437			31,437
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	7,056			7,056
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	31,437
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	7,056
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				2,905
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				5,227
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				92,613
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	97,840			97,840
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	11,172			11,172
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	97,840			97,840
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	11,172			11,172
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	97,840
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	11,172
Atlanta, GA - Riverwood 300 - Land [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				400
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				710
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				400
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				710
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,110			1,110
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	70			70
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	1,110			1,110
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	70			70
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	70
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				17,074
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				22,717
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				160,142
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	182,859			182,859
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	25,234			25,234
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	182,859			182,859
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	25,234			25,234
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	182,859
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	25,234
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				11,147
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				100,109
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	127,787			127,787
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	15,755			15,755
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	127,787			127,787
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	15,755			15,755
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	127,787
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	15,755
Charlotte, NC - Bank of America Tower [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				29,273
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				354,749
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				20,087
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				374,836
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	404,109			404,109
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	12,090			12,090
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	404,109			404,109
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	12,090			12,090
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	404,109
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	12,090
Nashville, TN - 3322 West End [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				3,025
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				27,490
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				11,806
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				3,025
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				39,296
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	42,321			42,321
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	18,539			18,539
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	42,321			42,321
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	18,539			18,539
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	42,321
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	18,539
Nashville, TN - 3401 West End [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				5,862
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				22,917
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				6,566
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				5,862
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				29,483
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	35,345			35,345
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	16,114			16,114
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	35,345			35,345
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	16,114			16,114
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	35,345
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	16,114
Nashville, TN - 5310 Maryland Way [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,863
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				7,201
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				3,809
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,863
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				11,010
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,873			12,873
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	6,540			6,540
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	12,873			12,873
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	6,540			6,540
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	12,873
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	6,540
Nashville, TN - Cool Springs I & II Deck [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				3,990
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				3,990
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,990			3,990
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	1,314			1,314
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	3,990			3,990
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	1,314			1,314
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	3,990
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	1,314
Nashville, TN - Cool Springs III & IV Deck [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				4,463
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				4,463
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,463			4,463
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	1,535			1,535
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	4,463			4,463
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	1,535			1,535
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	4,463
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	1,535
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				15,891
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,598
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				15,891
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	17,489			17,489
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	7,396			7,396
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	17,489			17,489
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	7,396			7,396
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	17,489
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	7,396
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				24,705
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				24,705
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	26,875			26,875
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	10,089			10,089
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	26,875			26,875
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	10,089			10,089
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	26,875
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	10,089
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				16,241
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				2,435
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				16,241
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	18,676			18,676
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,698			5,698
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	18,676			18,676
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,698			5,698
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	18,676
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	5,698
Nashville, TN - Cool Springs IV [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,715
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				19,221
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,715
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				19,221
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	20,936			20,936
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	6,131			6,131
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	20,936			20,936
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	6,131			6,131
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	20,936
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	6,131
Nashville, TN - Cool Springs V (Healthways) [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				3,688
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				295
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				53,100
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				3,983
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				53,100
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	57,083			57,083
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	23,044			23,044
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	57,083			57,083
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	23,044			23,044
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	57,083
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	23,044
Nashville, TN - Harpeth on the Green II [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,419
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				5,677
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				3,216
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,419
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				8,893
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,312			10,312
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,607			4,607
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	10,312			10,312
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,607			4,607
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	10,312
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	4,607
Nashville, TN - Harpeth on the Green III [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,660
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				6,649
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				2,263
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,660
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				8,912
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,572			10,572
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,015			5,015
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	10,572			10,572
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,015			5,015
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	10,572
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	5,015
Nashville, TN - Harpeth on the Green IV [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,713
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				6,842
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				3,171
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,713
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				10,013
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	11,726			11,726
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,598			5,598
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	11,726			11,726
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,598			5,598
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	11,726
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	5,598
Nashville, TN - Harpeth on The Green V [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				662
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				197
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				5,795
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				859
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				5,795
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,654			6,654
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,686			2,686
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	6,654			6,654
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,686			2,686
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	6,654
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	2,686
Nashville, TN - Hickory Trace [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,164
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				164
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				6,111
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,328
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				6,111
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,439			7,439
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,474			2,474
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	7,439			7,439
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,474			2,474
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	7,439
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	2,474
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				9,951
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,859
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				9,951
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	11,810			11,810
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,020			5,020
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	11,810			11,810
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,020			5,020
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	11,810
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	5,020
Nashville, TN - Highwoods Plaza II [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,448
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				307
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				9,600
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,755
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				9,600
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	11,355			11,355
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,988			4,988
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	11,355			11,355
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,988			4,988
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	11,355
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	4,988
Nashville, TN - Seven Springs I [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				2,076
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				592
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				13,216
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				2,668
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				13,216
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	15,884			15,884
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,916			5,916
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	15,884			15,884
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,916			5,916
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	15,884
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	5,916
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				9,430
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				9,430
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	11,395			11,395
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,107			4,107
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	11,395			11,395
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,107			4,107
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	11,395
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	4,107
Nashville, TN - Ramparts [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				2,394
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				12,806
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				10,313
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				2,394
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				23,119
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	25,513			25,513
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	9,057			9,057
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	25,513			25,513
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	9,057			9,057
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	25,513
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	9,057
Nashville, TN - Westwood South [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				2,106
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				382
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				12,317
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				2,488
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				12,317
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	14,805			14,805
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	6,168			6,168
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	14,805			14,805
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	6,168			6,168
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	14,805
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	6,168
Nashville, TN - 100 Winners Circle [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,497
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				7,258
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				2,760
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,497
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				10,018
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	11,515			11,515
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,121			5,121
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	11,515			11,515
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,121			5,121
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	11,515
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	5,121
Nashville, TN - The Pinnacle at Symphony Place [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances				93,350
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate 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				6,406
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				147,875
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	147,875			147,875
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	36,904			36,904
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	147,875			147,875
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	36,904			36,904
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	147,875
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	36,904
Nashville, TN - Seven Springs East (LifePoint) [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				2,525
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				37,587
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				192
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				2,525
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				37,779
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	40,304			40,304
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	8,512			8,512
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	40,304			40,304
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	8,512			8,512
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	40,304
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	8,512
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				581
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				803
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				8,804
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,607			9,607
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,604			2,604
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	9,607			9,607
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,604			2,604
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	9,607
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	2,604
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				1,995
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				2,439
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				53,301
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	55,740			55,740
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	7,947			7,947
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	55,740			55,740
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	7,947			7,947
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	55,740
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	7,947
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				3,011
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				2,356
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				33,059
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	35,415			35,415
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,058			4,058
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	35,415			35,415
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,058			4,058
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	35,415
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	4,058
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				110
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				19,223
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				169,692
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	188,915			188,915
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	16,369			16,369
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	188,915			188,915
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	16,369			16,369
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	188,915
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	16,369
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				0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				4,821
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				21,578
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				4,821
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				21,578
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	26,399			26,399
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	70			70
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	26,399			26,399
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	70			70
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	26,399
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	70
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				32
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				87,506
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	94,516			94,516
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,505			5,505
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	94,516			94,516
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,505			5,505
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	94,516
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	5,505
Nashville, TN - 5501 Virginia Way [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				4,534
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				25,632
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				274
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				4,534
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				25,906
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	30,440			30,440
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	1,775			1,775
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	30,440			30,440
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	1,775			1,775
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	30,440
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	1,775
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				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				29,845
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	29,845			29,845
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	29,845			29,845
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	29,845
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	0
Nashville, TN - Ovation - Land [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				31,063
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				104
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				31,167
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	31,167			31,167
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	31,167			31,167
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	31,167
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	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				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				6,218
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				6,218
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,218			6,218
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	6,218			6,218
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	6,218
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	0
Orlando, FL - Capital Plaza Three - Land [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				2,994
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				18
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				3,012
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,012			3,012
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	3,012			3,012
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	3,012
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	0
Orlando, FL - Eola Park - Land [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				2,027
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				2,027
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,027			2,027
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	2,027			2,027
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	2,027
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	0
South Florida - The 1800 Eller Drive Building [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				9,851
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				3,526
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				13,377
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	13,377			13,377
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	9,158			9,158
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	13,377			13,377
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	9,158			9,158
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	13,377
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	9,158
Orlando - Seaside Plaza [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				3,893
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				29,541
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				10,104
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				39,645
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	43,538			43,538
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	8,963			8,963
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	43,538			43,538
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	8,963			8,963
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	43,538
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	8,963
Orlando - Capital Plaza Two [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				4,346
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				43,394
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				8,433
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				4,346
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				51,827
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	56,173			56,173
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	12,253			12,253
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	56,173			56,173
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	12,253			12,253
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	56,173
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	12,253
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				7,668
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				34,989
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	38,471			38,471
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	7,387			7,387
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	38,471			38,471
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	7,387			7,387
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	38,471
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	7,387
Orlando - Landmark Center Two [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				4,743
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				22,031
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				9,352
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				4,743
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				31,383
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	36,126			36,126
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	7,595			7,595
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	36,126			36,126
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	7,595			7,595
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	36,126
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	7,595
Orlando - Landmark Center One [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				6,207
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				22,655
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				10,026
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				32,681
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	38,888			38,888
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	7,556			7,556
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	38,888			38,888
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	7,556			7,556
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	38,888
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	7,556
Orlando - 300 South Orange [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				3,490
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				56,079
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				10,243
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				66,322
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	69,812			69,812
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	12,867			12,867
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	69,812			69,812
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	12,867			12,867
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	69,812
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	12,867
Orlando, FL - Eola Centre [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				3,758
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				11,160
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				12,739
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				3,758
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				23,899
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	27,657			27,657
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,710			3,710
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	27,657			27,657
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,710			3,710
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	27,657
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	3,710
Pittsburgh, PA - One PPG Place [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				9,819
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				107,643
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				51,500
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				9,819
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				159,143
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	168,962			168,962
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	51,382			51,382
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	168,962			168,962
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	51,382			51,382
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	168,962
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	51,382
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				10,655
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				2,302
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				21,633
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	23,935			23,935
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,670			5,670
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	23,935			23,935
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,670			5,670
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	23,935
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	5,670
Pittsburgh, PA - Three PPG Place [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				501
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				2,923
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				4,680
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				501
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				7,603
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,104			8,104
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,737			2,737
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	8,104			8,104
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,737			2,737
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	8,104
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	2,737
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				3,675
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				620
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				6,914
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,534			7,534
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,220			2,220
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	7,534			7,534
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,220			2,220
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	7,534
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	2,220
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				3,168
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				803
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				8,092
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,895			8,895
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,828			2,828
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	8,895			8,895
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,828			2,828
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	8,895
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	2,828
Pittsburgh, PA - Six PPG Place [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				3,353
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				25,602
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				15,502
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				41,104
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	44,457			44,457
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	11,416			11,416
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	44,457			44,457
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	11,416			11,416
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	44,457
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	11,416
Pittsburgh, PA - EQT Plaza [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				16,457
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				83,812
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				15,175
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				16,457
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				98,987
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	115,444			115,444
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	25,863			25,863
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	115,444			115,444
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	25,863			25,863
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	115,444
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	25,863
Pittsburgh, PA - East Liberty - Land [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				2,478
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				2,478
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,478			2,478
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	2,478			2,478
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	2,478
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	0
Raleigh, NC - 3600 Glenwood Avenue [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				10,994
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				4,948
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				15,942
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	15,942			15,942
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	8,885			8,885
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	15,942			15,942
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	8,885			8,885
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	15,942
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	8,885
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				17,281
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				318
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				17,281
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	17,599			17,599
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	8,596			8,596
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	17,599			17,599
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	8,596			8,596
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	17,599
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	8,596
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				10,224
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				27,854
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	30,532			30,532
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	16,546			16,546
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	30,532			30,532
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	16,546			16,546
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	30,532
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	16,546
Raleigh, NC - 5000 North Park [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,010
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				4,612
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				(49)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				2,674
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				961
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				7,286
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,247			8,247
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,078			4,078
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	8,247			8,247
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,078			4,078
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	8,247
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	4,078
Raleigh, NC - 801 Raleigh Corporate Center [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				828
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				272
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				11,233
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,100
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				11,233
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,333			12,333
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,604			4,604
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	12,333			12,333
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,604			4,604
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	12,333
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	4,604
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				1,497
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				722
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				6,103
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,825			6,825
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,844			3,844
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	6,825			6,825
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,844			3,844
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	6,825
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	3,844
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				2,718
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				462
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				4,128
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,590			4,590
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	1,623			1,623
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	4,590			4,590
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	1,623			1,623
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	4,590
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	1,623
Raleigh, NC - Cape Fear [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				131
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				1,630
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				(2)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				(1,004)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				129
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				626
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	755			755
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	382			382
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	755			755
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	382			382
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	755
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	382
Raleigh, NC - Catawba [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				125
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				1,635
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				(2)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				(1,635)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				123
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	123			123
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	123			123
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	123
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	0
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				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				1,138
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	13,583			13,583
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,544			4,544
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	13,583			13,583
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,544			4,544
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	13,583
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	4,544
Raleigh, NC - 4000 CentreGreen [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,653
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				(389)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				11,339
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,264
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				11,339
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,603			12,603
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,202			5,202
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	12,603			12,603
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,202			5,202
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	12,603
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	5,202
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				2,875
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,291
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				37,447
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	38,738			38,738
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,997			4,997
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	38,738			38,738
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,997			4,997
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	38,738
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	4,997
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				14,505
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,382
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				14,505
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	15,887			15,887
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,860			4,860
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	15,887			15,887
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,860			4,860
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	15,887
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	4,860
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				12,888
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,335
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				12,888
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	14,223			14,223
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,736			3,736
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	14,223			14,223
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,736			3,736
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	14,223
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	3,736
Raleigh, NC - Cottonwood [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				609
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				3,244
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				437
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				609
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				3,681
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,290			4,290
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,435			2,435
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	4,290			4,290
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,435			2,435
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	4,290
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	2,435
Raleigh, NC - GlenLake - Land [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				13,003
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				(9,924)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				114
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				3,079
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				114
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,193			3,193
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	56			56
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	3,193			3,193
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	56			56
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	3,193
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	56
Raleigh, NC - GlenLake One [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				924
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				1,324
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				22,714
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				2,248
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				22,714
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	24,962			24,962
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	10,176			10,176
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	24,962			24,962
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	10,176			10,176
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	24,962
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	10,176
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				20,311
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				2,152
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				20,311
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	22,463			22,463
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	7,243			7,243
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	22,463			22,463
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	7,243			7,243
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	22,463
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	7,243
Raleigh, NC - GlenLake Six [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				941
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				(365)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				20,118
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				576
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				20,118
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	20,694			20,694
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	6,532			6,532
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	20,694			20,694
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	6,532			6,532
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	20,694
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	6,532
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				17,337
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,844
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				17,337
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	19,181			19,181
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	8,802			8,802
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	19,181			19,181
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	8,802			8,802
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	19,181
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	8,802
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				7,981
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				7,981
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,245			8,245
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,290			4,290
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	8,245			8,245
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,290			4,290
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	8,245
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	4,290
Raleigh, NC - Inveresk Parcel 2 - Land [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				657
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				38
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				103
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				695
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				103
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	798			798
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	14			14
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	798			798
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	14			14
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	14
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				684
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,450
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				6,995
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,445			8,445
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	1,998			1,998
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	8,445			8,445
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	1,998			1,998
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	8,445
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	1,998
Raleigh, NC - 4620 Creekstone Drive [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				149
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				107
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				3,380
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				256
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				3,380
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,636			3,636
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	1,511			1,511
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	3,636			3,636
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	1,511			1,511
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	3,636
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	1,511
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				10,478
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				691
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				10,478
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	11,169			11,169
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,269			5,269
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	11,169			11,169
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,269			5,269
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	11,169
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	5,269
Raleigh, NC - Pamlico [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				289
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				9,188
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				289
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				9,188
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,477			9,477
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	7,209			7,209
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	9,477			9,477
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	7,209			7,209
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	9,477
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	7,209
Raleigh, NC - 751 Corporate Center [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				2,665
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				16,939
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				2,665
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				16,939
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	19,604			19,604
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	1,817			1,817
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	19,604			19,604
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	1,817			1,817
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	19,604
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	1,817
Raleigh, NC - PNC Plaza [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,206
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				70,389
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,206
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				70,389
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	71,595			71,595
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	24,643			24,643
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	71,595			71,595
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	24,643			24,643
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	71,595
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	24,643
Raleigh, NC - 4301 Lake Boone Trail [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				878
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				3,730
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				2,405
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				6,135
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,013			7,013
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,896			3,896
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	7,013			7,013
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,896			3,896
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	7,013
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	3,896
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				1,407
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				362
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				3,225
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,587			3,587
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,130			2,130
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	3,587			3,587
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,130			2,130
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	3,587
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	2,130
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				1,650
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				919
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				4,466
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,385			5,385
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,769			2,769
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	5,385			5,385
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,769			2,769
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	5,385
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	2,769
Raleigh, NC - 4325 Lake Boone Trail [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				586
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				4,872
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				586
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				4,872
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,458			5,458
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,764			2,764
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	5,458			5,458
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,764			2,764
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	5,458
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	2,764
Raleigh, NC - 2300 Rexwoods Drive [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,301
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				184
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				8,129
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,485
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				8,129
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,614			9,614
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,938			2,938
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	9,614			9,614
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,938			2,938
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	9,614
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	2,938
Raleigh, NC - 4709 Creekstone Drive [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				469
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				4,038
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				23
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				5,383
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				492
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				9,421
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,913			9,913
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,081			3,081
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	9,913			9,913
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,081			3,081
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	9,913
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	3,081
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				1,180
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				666
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				3,845
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,511			4,511
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,356			2,356
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	4,511			4,511
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,356			2,356
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	4,511
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	2,356
Raleigh, NC - 4700 Homewood Court [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,086
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				4,533
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				2,078
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				6,611
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,697			7,697
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,925			3,925
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	7,697			7,697
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,925			3,925
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	7,697
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	3,925
Raleigh, NC - 4800 Six Forks Road [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				862
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				4,411
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				3,433
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				862
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				7,844
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,706			8,706
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,401			4,401
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	8,706			8,706
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,401			4,401
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	8,706
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	4,401
Raleigh, NC - Smoketree Tower [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				2,353
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				11,743
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				6,818
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				2,353
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				18,561
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	20,914			20,914
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	10,951			10,951
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	20,914			20,914
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	10,951			10,951
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	20,914
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	10,951
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				6,221
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				472
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				6,221
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,693			6,693
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,545			3,545
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	6,693			6,693
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,545			3,545
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	6,693
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	3,545
Raleigh, NC - Weston - Land [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				22,771
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				(19,894)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				2,877
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,877			2,877
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	2,877			2,877
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	2,877
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	0
Raleigh, NC - 4625 Creekstone Drive [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				458
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				268
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				6,122
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				6,122
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,848			6,848
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,621			3,621
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	6,848			6,848
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,621			3,621
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	6,848
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	3,621
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				15,357
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				34,207
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	36,858			36,858
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	6,014			6,014
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	36,858			36,858
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	6,014			6,014
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	36,858
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	6,014
Raleigh, NC - GlenLake Five [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				2,263
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				30,264
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				3,693
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				2,263
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				33,957
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	36,220			36,220
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	8,605			8,605
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	36,220			36,220
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	8,605			8,605
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	36,220
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	8,605
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				13
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				13,201
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	14,027			14,027
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,836			2,836
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	14,027			14,027
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,836			2,836
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	14,027
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	2,836
Raleigh, NC - CentreGreen Cafe [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				41
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				3,509
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				(2)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				41
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				3,507
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,548			3,548
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	533			533
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	3,548			3,548
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	533			533
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	3,548
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	533
Raleigh, NC - CentreGreen Fitness Center [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				27
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				2,322
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				(1)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				27
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				2,321
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,348			2,348
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	353			353
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	2,348			2,348
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	353			353
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	2,348
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	353
Raleigh, NC - One City Plaza [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				11,288
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				68,375
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				26,766
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				11,288
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				95,141
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	106,429			106,429
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	20,423			20,423
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	106,429			106,429
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	20,423			20,423
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	106,429
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	20,423
Raleigh, NC - Edison - Land [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				5,984
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				2,196
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				8,180
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	8,180			8,180
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	8,180			8,180
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	8,180
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	0
Raleigh, NC - Charter Square [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				7,267
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				65,881
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				4,913
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				7,267
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				70,794
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	78,061			78,061
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	10,208			10,208
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	78,061			78,061
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	10,208			10,208
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	78,061
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	10,208
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				(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				21,580
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				149,736
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	171,316			171,316
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	19,477			19,477
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	171,316			171,316
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	19,477			19,477
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	171,316
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	19,477
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				0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				1,662
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				34,077
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,662
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				34,077
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	35,739			35,739
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	435			435
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	35,739			35,739
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	435			435
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	35,739
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	435
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				6,582
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				2,816
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				9,398
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,398			9,398
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	9,398			9,398
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	9,398
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	0
Raleigh, NC - Other Property [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				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				(6,084)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				96,118
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				21,176
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				116,986
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	138,162			138,162
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	50,227			50,227
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	138,162			138,162
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	50,227			50,227
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	138,162
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	50,227
Richmond, VA - 4900 Cox Road [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,324
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				5,311
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				15
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				3,731
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,339
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				9,042
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,381			10,381
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,460			5,460
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	10,381			10,381
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,460			5,460
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	10,381
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	5,460
Richmond, VA - Colonnade Building [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,364
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				6,105
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				2,462
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,364
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				8,567
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,931			9,931
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,885			3,885
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	9,931			9,931
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,885			3,885
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	9,931
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	3,885
Richmond, VA - Dominion Place - Pitts Parcel - Land [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,101
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				(404)
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				697
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	697			697
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	697			697
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	697
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	0
Richmond, VA - Markel 4521 [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,581
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				13,299
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				168
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				(396)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,749
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				12,903
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	14,652			14,652
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	6,260			6,260
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	14,652			14,652
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	6,260			6,260
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	14,652
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	6,260
Richmond, VA - Hamilton Beach [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,086
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				4,345
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				10
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				2,997
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,096
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				7,342
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,438			8,438
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,849			3,849
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	8,438			8,438
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,849			3,849
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	8,438
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	3,849
Richmond, VA - Highwoods Commons [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				521
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				458
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				4,651
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				979
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				4,651
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,630			5,630
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,261			2,261
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	5,630			5,630
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,261			2,261
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	5,630
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	2,261
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				14,116
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,710
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				14,116
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	15,826			15,826
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	7,416			7,416
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	15,826			15,826
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	7,416			7,416
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	15,826
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	7,416
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				10,292
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				10,292
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	11,304			11,304
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,936			3,936
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	11,304			11,304
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,936			3,936
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	11,304
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	3,936
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				8,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				794
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				8,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,794			8,794
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,744			3,744
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	8,794			8,794
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,744			3,744
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	8,794
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	3,744
Richmond, VA - Highwoods Plaza [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				909
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				187
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				5,897
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,096
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				5,897
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,993			6,993
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,865			2,865
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	6,993			6,993
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,865			2,865
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	6,993
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	2,865
Richmond, VA - Innslake Center [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				845
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				195
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				8,023
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,040
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				8,023
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,063			9,063
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,527			3,527
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	9,063			9,063
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,527			3,527
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	9,063
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	3,527
Richmond, VA - Highwoods Centre [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,205
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				4,825
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				1,967
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,205
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				6,792
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,997			7,997
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,505			3,505
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	7,997			7,997
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,505			3,505
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	7,997
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	3,505
Richmond, VA - Markel 4501 [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,300
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				13,259
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				213
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				(3,367)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,513
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				9,892
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	11,405			11,405
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,039			4,039
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	11,405			11,405
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,039			4,039
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	11,405
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	4,039
Richmond, VA - 4600 Cox Road [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,700
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				17,081
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				169
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				(3,450)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,869
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				13,631
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	15,500			15,500
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,576			5,576
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	15,500			15,500
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,576			5,576
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	15,500
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	5,576
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				3,666
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				2,169
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				12,325
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	14,494			14,494
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	6,976			6,976
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	14,494			14,494
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	6,976			6,976
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	14,494
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	6,976
Richmond, VA - North Shore Commons I [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				951
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				137
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				12,624
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,088
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				12,624
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	13,712			13,712
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	6,525			6,525
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	13,712			13,712
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	6,525			6,525
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	13,712
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	6,525
Richmond, VA - North Shore Commons II [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				2,067
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				(89)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				10,848
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,978
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				10,848
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,826			12,826
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,873			3,873
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	12,826			12,826
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,873			3,873
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	12,826
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	3,873
Richmond, VA - North Shore Commons C - Land [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,497
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				55
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				10
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,552
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				10
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,562			1,562
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	1			1
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	1,562			1,562
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	1			1
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	1,562
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	1
Richmond, VA - North Shore Commons D - Land [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,261
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,261
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,261			1,261
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	1,261			1,261
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	1,261
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	0
Richmond, VA - Nuckols Corner - Land [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,259
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				231
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				1,490
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	1,490			1,490
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	1,490			1,490
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	1,490
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	0
Richmond, VA - One Shockoe Plaza [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				356
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				21,530
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				356
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				21,530
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	21,886			21,886
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	10,372			10,372
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	21,886			21,886
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	10,372			10,372
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	21,886
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	10,372
Richmond, VA - Pavilion - Land [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				181
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				46
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				(181)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				(46)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	0			0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	0			0
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	0
Richmond, VA - Lake Brook Commons [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,600
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				8,864
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				21
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				2,877
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,621
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				11,741
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	13,362			13,362
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,503			5,503
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	13,362			13,362
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,503			5,503
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	13,362
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	5,503
Richmond, VA - Sadler & Cox - Land [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,535
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				343
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,878
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,878			1,878
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	1,878			1,878
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	1,878
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	0
Richmond, VA - Highwoods Three [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,918
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				358
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				12,128
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				2,276
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				12,128
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	14,404			14,404
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,345			4,345
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	14,404			14,404
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,345			4,345
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	14,404
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	4,345
Richmond, VA - Stony Point VI (Virginia Urology) [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,925
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				25,868
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				(2)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,925
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				25,866
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	27,791			27,791
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,059			2,059
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	27,791			27,791
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,059			2,059
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	27,791
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	2,059
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				4,115
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,117
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				15,745
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	16,862			16,862
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	8,432			8,432
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	16,862			16,862
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	8,432			8,432
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	16,862
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	8,432
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				13,296
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				13,296
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	14,639			14,639
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	6,534			6,534
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	14,639			14,639
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	6,534			6,534
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	14,639
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	6,534
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				10,762
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				10,762
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	11,757			11,757
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,361			5,361
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	11,757			11,757
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,361			5,361
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	11,757
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	5,361
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				12,057
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				12,057
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	13,012			13,012
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,467			4,467
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	13,012			13,012
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,467			4,467
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	13,012
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	4,467
Richmond, VA - Virginia Mutual [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,301
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				6,036
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				15
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				1,201
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,316
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				7,237
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,553			8,553
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,639			3,639
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	8,553			8,553
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,639			3,639
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	8,553
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	3,639
Richmond, VA - Waterfront Plaza [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				585
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				2,347
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				8
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				2,291
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				593
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				4,638
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,231			5,231
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,157			2,157
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	5,231			5,231
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,157			2,157
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	5,231
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	2,157
Richmond, VA - Innsbrook Centre [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				914
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				8,249
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				1,126
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				914
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				9,375
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,289			10,289
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,093			4,093
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	10,289			10,289
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,093			4,093
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	10,289
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	4,093
Richmond, VA - Elks Pass - Land [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				3,326
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				3,326
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,326			3,326
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	3,326			3,326
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	3,326
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	0
Tampa, FL - Meridian Three [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				2,673
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				16,470
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				5,930
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				2,673
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				22,400
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	25,073			25,073
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	7,048			7,048
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	25,073			25,073
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	7,048			7,048
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	25,073
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	7,048
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				3,632
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				2,276
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				15,449
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	17,725			17,725
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	7,269			7,269
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	17,725			17,725
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	7,269			7,269
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	17,725
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	7,269
Tampa, FL - 5525 Gray Street [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				4,054
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				406
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				23,977
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				4,460
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				23,977
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	28,437			28,437
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	8,606			8,606
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	28,437			28,437
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	8,606			8,606
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	28,437
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	8,606
Tampa, FL - Highwoods Preserve Building V [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				881
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				25,368
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				881
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				25,368
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	26,249			26,249
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	11,031			11,031
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	26,249			26,249
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	11,031			11,031
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	26,249
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	11,031
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				38,263
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				3,501
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				38,263
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	41,764			41,764
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	12,745			12,745
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	41,764			41,764
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	12,745			12,745
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	41,764
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	12,745
Tampa, FL - HIW Bay Center II - Land [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				3,482
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				3,482
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,482			3,482
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	3,482			3,482
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	3,482
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	0
Tampa, FL - HIW Preserve Building VII [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				790
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				16,996
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				790
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				16,996
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	17,786			17,786
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,481			4,481
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	17,786			17,786
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	4,481			4,481
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	17,786
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	4,481
Tampa, FL - HIW Preserve VII Garage [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				6,932
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				6,932
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,932			6,932
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,367			2,367
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	6,932			6,932
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,367			2,367
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	6,932
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	2,367
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				4,443
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				10,700
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,700			10,700
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,546			5,546
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	10,700			10,700
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,546			5,546
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	10,700
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	5,546
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				41,475
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				2,106
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				41,564
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	43,670			43,670
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	23,659			23,659
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	43,670			43,670
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	23,659			23,659
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	43,670
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	23,659
Tampa, FL - LakePointe Two [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				2,000
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				15,848
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				672
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				15,211
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				2,672
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				31,059
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	33,731			33,731
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	15,976			15,976
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	33,731			33,731
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	15,976			15,976
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	33,731
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	15,976
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				7,726
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				15,095
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	15,095			15,095
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	7,504			7,504
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	15,095			15,095
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	7,504			7,504
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	15,095
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	7,504
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				5,732
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				5,732
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,732			5,732
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,455			2,455
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	5,732			5,732
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	2,455			2,455
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	5,732
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	2,455
Tampa, FL - One Harbour Place [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				2,016
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				25,252
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				16,693
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				2,016
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				41,945
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	43,961			43,961
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	18,333			18,333
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	43,961			43,961
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	18,333			18,333
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	43,961
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	18,333
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				3,231
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				12,638
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,638			12,638
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	6,111			6,111
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	12,638			12,638
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	6,111			6,111
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	12,638
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	6,111
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				6,071
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				22,465
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	22,465			22,465
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	12,081			12,081
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	22,465			22,465
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	12,081			12,081
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	22,465
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	12,081
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				5,801
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				5,801
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,801			5,801
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,038			3,038
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	5,801			5,801
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,038			3,038
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	5,801
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	3,038
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				4,751
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,454
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				19,253
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	20,707			20,707
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	10,099			10,099
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	20,707			20,707
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	10,099			10,099
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	20,707
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	10,099
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				6,948
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				26,846
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	30,064			30,064
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	14,011			14,011
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	30,064			30,064
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	14,011			14,011
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	30,064
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	14,011
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				1,706
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,126
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				6,892
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,018			8,018
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,687			3,687
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	8,018			8,018
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,687			3,687
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	8,018
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	3,687
Tampa, FL - Independence Park - Land [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				4,943
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				5,058
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				2,227
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				10,001
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				2,227
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,228			12,228
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	214			214
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	12,228			12,228
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	214			214
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	12,228
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	214
Tampa, FL - Independence One [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				2,531
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				4,526
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				5,741
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				2,531
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				10,267
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,798			12,798
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,104			5,104
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	12,798			12,798
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	5,104			5,104
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	12,798
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	5,104
Tampa, FL - Meridian One [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,849
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				22,363
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				3,187
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,849
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				25,550
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	27,399			27,399
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	6,028			6,028
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	27,399			27,399
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	6,028			6,028
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	27,399
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	6,028
Tampa, FL - Meridian Two [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,302
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				19,588
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				5,425
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,302
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				25,013
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	26,315			26,315
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	6,064			6,064
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	26,315			26,315
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	6,064			6,064
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	26,315
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	6,064
Tampa, FL - 5332 Avion Drive [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				6,310
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				39,358
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				6,310
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				39,358
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	45,668			45,668
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,937			3,937
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	45,668			45,668
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	3,937			3,937
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	45,668
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	3,937
Tampa, FL - Suntrust Financial Centre [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				1,980
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				102,138
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				25,020
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				1,980
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				127,158
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	129,138			129,138
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	20,758			20,758
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	129,138			129,138
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	20,758			20,758
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	129,138
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	20,758
Tampa, FL - Suntrust Financial - Land [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				2,225
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				2,225
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,225			2,225
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	2,225			2,225
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	0			0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	2,225
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	0
Total Real Estate and Accumulated Depreciation [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land				606,086
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements				3,274,841
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land				(5,128)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements				1,719,034
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land				600,958
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements				4,993,875
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,594,833			5,594,833
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	1,421,956			1,421,956
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	5,594,833			5,594,833
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation	1,421,956			$ 1,421,956
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Real estate assets, ending balance	5,594,833
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Accumulated depreciation, ending balance	$ 1,421,956
Minimum [Member] | Atlanta, GA - 1700 Century Circle [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Atlanta, GA - 1800 Century Boulevard [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Atlanta, GA - 1825 Century Boulevard [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Atlanta, GA - 1875 Century Boulevard [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Atlanta, GA - 1900 Century Boulevard [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Atlanta, GA - 2200 Century Parkway [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Atlanta, GA - 2400 Century Center [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Atlanta, GA - 2500 Century Center [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Atlanta, GA - 2500/2635 Parking Garage [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Atlanta, GA - 2600 Century Parkway [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Atlanta, GA - 2635 Century Parkway [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Atlanta, GA - 2800 Century Parkway [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Atlanta, GA - 50 Glenlake [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Atlanta, GA - Century Plaza I [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Atlanta, GA - Century Plaza II [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Atlanta, GA - 5405 Windward Parkway [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Atlanta, GA - Riverpoint - Land [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Atlanta, GA - Riverwood 100 [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Atlanta, GA - Two Alliance Center [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Atlanta, GA - One Alliance Center [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Atlanta, GA - 10 Glenlake North [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Atlanta, GA - 10 Glenlake South [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Atlanta, GA - Riverwood 200 [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Atlanta, GA - Riverwood 300 - Land [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Atlanta, GA - Monarch Tower [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Atlanta, GA - Monarch Plaza [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Charlotte, NC - Bank of America Tower [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - 3322 West End [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - 3401 West End [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - 5310 Maryland Way [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - Cool Springs I & II Deck [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - Cool Springs III & IV Deck [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - Cool Springs I [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - Cool Springs II [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - Cool Springs III [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - Cool Springs IV [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - Cool Springs V (Healthways) [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - Harpeth on the Green II [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - Harpeth on the Green III [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - Harpeth on the Green IV [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - Harpeth on The Green V [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - Hickory Trace [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - Highwoods Plaza I [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - Highwoods Plaza II [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - Seven Springs I [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - SouthPointe [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - Ramparts [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - Westwood South [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - 100 Winners Circle [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - The Pinnacle at Symphony Place [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - Seven Springs East (LifePoint) [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - The Shops at Seven Springs [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - Seven Springs West [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - Seven Springs II [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - Bridgestone Tower [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - Virginia Springs II [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - MARS Campus [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Nashville, TN - 5501 Virginia Way [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | South Florida - The 1800 Eller Drive Building [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Orlando - Seaside Plaza [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Orlando - Capital Plaza Two [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Orlando - Capital Plaza One [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Orlando - Landmark Center Two [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Orlando - Landmark Center One [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Orlando - 300 South Orange [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Orlando, FL - Eola Centre [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Pittsburgh, PA - One PPG Place [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Pittsburgh, PA - Two PPG Place [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Pittsburgh, PA - Three PPG Place [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Pittsburgh, PA - Four PPG Place [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Pittsburgh, PA - Five PPG Place [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Pittsburgh, PA - Six PPG Place [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Pittsburgh, PA - EQT Plaza [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 3600 Glenwood Avenue [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 3737 Glenwood Avenue [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 4800 North Park [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 5000 North Park [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 801 Raleigh Corporate Center [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 2500 Blue Ridge Road [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 2418 Blue Ridge Road [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - Cape Fear [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - Catawba [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 2000 CentreGreen [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 4000 CentreGreen [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 5000 CentreGreen [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 3000 CentreGreen [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 1000 CentreGreen [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - Cottonwood [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - GlenLake - Land [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - GlenLake One [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - GlenLake Four [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - GlenLake Six [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 701 Raleigh Corporate Center [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - Highwoods Centre [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - Inveresk Parcel 2 - Land [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 4201 Lake Boone Trail [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 4620 Creekstone Drive [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 4825 Creekstone Drive [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - Pamlico [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 751 Corporate Center [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - PNC Plaza [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 4301 Lake Boone Trail [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 4207 Lake Boone Trail [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 2301 Rexwoods Drive [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 4325 Lake Boone Trail [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 2300 Rexwoods Drive [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 4709 Creekstone Drive [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 4700 Six Forks Road [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 4700 Homewood Court [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 4800 Six Forks Road [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - Smoketree Tower [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 4601 Creekstone Drive [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 4625 Creekstone Drive [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 11000 Weston Parkway [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - GlenLake Five [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 11800 Weston Parkway [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - CentreGreen Cafe [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - CentreGreen Fitness Center [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - One City Plaza [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - Charter Square [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - Metlife Global Technology Campus [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Raleigh, NC - 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 - Other Property [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Richmond, VA - 4900 Cox Road [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Richmond, VA - Colonnade Building [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Richmond, VA - Markel 4521 [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Richmond, VA - Hamilton Beach [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Richmond, VA - Highwoods Commons [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Richmond, VA - Highwoods One [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Richmond, VA - Highwoods Two [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Richmond, VA - Highwoods Five [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Richmond, VA - Highwoods Plaza [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Richmond, VA - Innslake Center [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Richmond, VA - Highwoods Centre [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Richmond, VA - Markel 4501 [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Richmond, VA - 4600 Cox Road [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Richmond, VA - North Park [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Richmond, VA - North Shore Commons I [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Richmond, VA - North Shore Commons II [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Richmond, VA - One Shockoe Plaza [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Richmond, VA - Lake Brook Commons [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Richmond, VA - Highwoods Three [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Richmond, VA - Stony Point VI (Virginia Urology) [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Richmond, VA - Stony Point I [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Richmond, VA - Stony Point II [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Richmond, VA - Stony Point III [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Richmond, VA - Stony Point IV [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Richmond, VA - Virginia Mutual [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Richmond, VA - Waterfront Plaza [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Richmond, VA - Innsbrook Centre [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Tampa, FL - Meridian Three [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Tampa, FL - Bayshore Place [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Tampa, FL - 5525 Gray Street [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Tampa, FL - Highwoods Preserve Building V [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Tampa, FL - Highwoods Bay Center I [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Tampa, FL - HIW Preserve Building VII [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Tampa, FL - HIW Preserve VII Garage [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Tampa, FL - Horizon [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Tampa, FL - LakePointe One [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Tampa, FL - LakePointe Two [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Tampa, FL - Lakeside [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Tampa, FL - Lakeside/Parkside Garage [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Tampa, FL - One Harbour Place [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Tampa, FL - Parkside [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Tampa, FL - Pavilion [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Tampa, FL - Pavilion Parking Garage [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Tampa, FL - Spectrum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Tampa, FL - Tower Place [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Tampa, FL - Westshore Square [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Tampa, FL - Independence Park - Land [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Tampa, FL - Independence One [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Tampa, FL - Meridian One [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Tampa, FL - Meridian Two [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5 years
Minimum [Member] | Tampa, FL - 5332 Avion 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
Maximum [Member] | Atlanta, GA - 1700 Century Circle [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Atlanta, GA - 1800 Century Boulevard [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Atlanta, GA - 1825 Century Boulevard [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Atlanta, GA - 1875 Century Boulevard [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Atlanta, GA - 1900 Century Boulevard [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Atlanta, GA - 2200 Century Parkway [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Atlanta, GA - 2400 Century Center [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Atlanta, GA - 2500 Century Center [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Atlanta, GA - 2500/2635 Parking Garage [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Atlanta, GA - 2600 Century Parkway [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Atlanta, GA - 2635 Century Parkway [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Atlanta, GA - 2800 Century Parkway [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Atlanta, GA - 50 Glenlake [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Atlanta, GA - Century Plaza I [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Atlanta, GA - Century Plaza II [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Atlanta, GA - 5405 Windward Parkway [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Atlanta, GA - Riverpoint - Land [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Atlanta, GA - Riverwood 100 [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Atlanta, GA - Two Alliance Center [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Atlanta, GA - One Alliance Center [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Atlanta, GA - 10 Glenlake North [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Atlanta, GA - 10 Glenlake South [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Atlanta, GA - Riverwood 200 [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Atlanta, GA - Riverwood 300 - Land [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Atlanta, GA - Monarch Tower [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Atlanta, GA - Monarch Plaza [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Charlotte, NC - Bank of America Tower [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - 3322 West End [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - 3401 West End [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - 5310 Maryland Way [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - Cool Springs I & II Deck [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - Cool Springs III & IV Deck [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - Cool Springs I [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - Cool Springs II [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - Cool Springs III [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - Cool Springs IV [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - Cool Springs V (Healthways) [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - Harpeth on the Green II [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - Harpeth on the Green III [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - Harpeth on the Green IV [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - Harpeth on The Green V [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - Hickory Trace [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - Highwoods Plaza I [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - Highwoods Plaza II [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - Seven Springs I [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - SouthPointe [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - Ramparts [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - Westwood South [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - 100 Winners Circle [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - The Pinnacle at Symphony Place [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - Seven Springs East (LifePoint) [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - The Shops at Seven Springs [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - Seven Springs West [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - Seven Springs II [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - Bridgestone Tower [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - Virginia Springs II [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - MARS Campus [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Nashville, TN - 5501 Virginia Way [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | South Florida - The 1800 Eller Drive Building [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Orlando - Seaside Plaza [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Orlando - Capital Plaza Two [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Orlando - Capital Plaza One [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Orlando - Landmark Center Two [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Orlando - Landmark Center One [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Orlando - 300 South Orange [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Orlando, FL - Eola Centre [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Pittsburgh, PA - One PPG Place [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Pittsburgh, PA - Two PPG Place [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Pittsburgh, PA - Three PPG Place [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Pittsburgh, PA - Four PPG Place [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Pittsburgh, PA - Five PPG Place [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Pittsburgh, PA - Six PPG Place [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Pittsburgh, PA - EQT Plaza [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 3600 Glenwood Avenue [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 3737 Glenwood Avenue [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 4800 North Park [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 5000 North Park [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 801 Raleigh Corporate Center [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 2500 Blue Ridge Road [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 2418 Blue Ridge Road [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - Cape Fear [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - Catawba [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 2000 CentreGreen [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 4000 CentreGreen [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 5000 CentreGreen [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 3000 CentreGreen [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 1000 CentreGreen [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - Cottonwood [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - GlenLake - Land [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - GlenLake One [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - GlenLake Four [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - GlenLake Six [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 701 Raleigh Corporate Center [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - Highwoods Centre [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - Inveresk Parcel 2 - Land [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 4201 Lake Boone Trail [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 4620 Creekstone Drive [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 4825 Creekstone Drive [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - Pamlico [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 751 Corporate Center [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - PNC Plaza [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 4301 Lake Boone Trail [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 4207 Lake Boone Trail [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 2301 Rexwoods Drive [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 4325 Lake Boone Trail [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 2300 Rexwoods Drive [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 4709 Creekstone Drive [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 4700 Six Forks Road [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 4700 Homewood Court [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 4800 Six Forks Road [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - Smoketree Tower [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 4601 Creekstone Drive [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 4625 Creekstone Drive [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 11000 Weston Parkway [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - GlenLake Five [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 11800 Weston Parkway [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - CentreGreen Cafe [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - CentreGreen Fitness Center [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - One City Plaza [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - Charter Square [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - Metlife Global Technology Campus [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Raleigh, NC - 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 - Other Property [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Richmond, VA - 4900 Cox Road [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Richmond, VA - Colonnade Building [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Richmond, VA - Markel 4521 [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Richmond, VA - Hamilton Beach [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Richmond, VA - Highwoods Commons [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Richmond, VA - Highwoods One [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Richmond, VA - Highwoods Two [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Richmond, VA - Highwoods Five [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Richmond, VA - Highwoods Plaza [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Richmond, VA - Innslake Center [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Richmond, VA - Highwoods Centre [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Richmond, VA - Markel 4501 [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Richmond, VA - 4600 Cox Road [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Richmond, VA - North Park [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Richmond, VA - North Shore Commons I [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Richmond, VA - North Shore Commons II [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Richmond, VA - One Shockoe Plaza [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Richmond, VA - Lake Brook Commons [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Richmond, VA - Highwoods Three [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Richmond, VA - Stony Point VI (Virginia Urology) [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Richmond, VA - Stony Point I [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Richmond, VA - Stony Point II [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Richmond, VA - Stony Point III [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Richmond, VA - Stony Point IV [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Richmond, VA - Virginia Mutual [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Richmond, VA - Waterfront Plaza [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Richmond, VA - Innsbrook Centre [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Tampa, FL - Meridian Three [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Tampa, FL - Bayshore Place [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Tampa, FL - 5525 Gray Street [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Tampa, FL - Highwoods Preserve Building V [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Tampa, FL - Highwoods Bay Center I [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Tampa, FL - HIW Preserve Building VII [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Tampa, FL - HIW Preserve VII Garage [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Tampa, FL - Horizon [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Tampa, FL - LakePointe One [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Tampa, FL - LakePointe Two [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Tampa, FL - Lakeside [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Tampa, FL - Lakeside/Parkside Garage [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Tampa, FL - One Harbour Place [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Tampa, FL - Parkside [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Tampa, FL - Pavilion [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Tampa, FL - Pavilion Parking Garage [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Tampa, FL - Spectrum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Tampa, FL - Tower Place [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Tampa, FL - Westshore Square [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Tampa, FL - Independence Park - Land [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Tampa, FL - Independence One [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Tampa, FL - Meridian One [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Tampa, FL - Meridian Two [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40 years
Maximum [Member] | Tampa, FL - 5332 Avion 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