Peakstone Realty Trust (PKST) S-4 25 Nov 20 Registration of securities issued in business combination transactions Financial data

Cover Page

Cover Page	9 Months Ended
	Sep. 30, 2020
Cover [Abstract]
Document Type	S-4
Amendment Flag	false
Entity Registrant Name	Griffin Capital Essential Asset REIT, Inc.
Entity Central Index Key	0001600626
Entity Small Business	false
Entity Filer Category	Non-accelerated Filer
Entity Emerging Growth Company	false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2020		Dec. 31, 2019		Dec. 31, 2018
ASSETS
Cash and cash equivalents	$ 181,732		$ 54,830		$ 48,478
Restricted cash	35,831		58,430		15,807
Real estate:
Land	451,696		458,339		350,470
Building and improvements	3,114,726		3,043,527		2,165,016
Tenant origination and absorption cost	745,039		744,773		530,181
Construction in progress	16,167		31,794		27,697
Total real estate	4,327,628		4,278,433		3,073,364
Less: accumulated depreciation and amortization	(781,689)		(668,104)		(538,412)
Total real estate, net	3,545,939		3,610,329		2,534,952
Investments in unconsolidated entities	34		11,028		30,565
Intangible assets, net	10,651		12,780		17,099
Deferred rent receivable	92,433		73,012		55,163
Deferred leasing costs, net	48,275		49,390		29,958
Goodwill	229,948		229,948		229,948
Due from affiliates	987		837		19,685
Right of use asset	40,286		41,347		0
Other assets	37,834		33,571		31,120
Total assets	4,223,950		4,175,502		3,012,775
LIABILITIES AND EQUITY
Debt, net	2,174,352		1,969,104		1,353,531
Restricted reserves	14,115		14,064		8,201
Interest rate swap liability	58,852		24,146		6,962
Redemptions payable	6,145		96,648		0
Distributions payable	9,095		15,530		12,248
Due to affiliates	5,155		10,883		42,406
Intangible liabilities, net	28,548		31,805		23,115
Lease liability	45,486		45,020		0
Accrued expenses and other liabilities	118,257		96,389		80,616
Total liabilities	2,460,005		2,303,589		1,527,079
Commitments and contingencies
Noncontrolling interests subject to redemption	4,569		4,831		4,887
Stockholders' equity:
Common stock	230	[1]	228	[1]	174	[2]
Additional paid-in-capital	2,100,047		2,060,604		1,556,770
Cumulative distributions	(793,546)		(715,792)		(570,977)
Accumulated earnings	148,743		153,312		128,525
Accumulated other comprehensive loss	(52,322)		(21,875)		(2,409)
Total stockholders' equity	1,403,152		1,476,477		1,112,083
Noncontrolling interests	229,892		245,040		232,203
Total equity	1,633,044		1,721,517		1,344,286
Total liabilities and equity	4,223,950		4,175,502		3,012,775
Perpetual Convertible Preferred Shares
LIABILITIES AND EQUITY
Perpetual convertible preferred shares and Common stock subject to redemption	125,000		125,000		125,000
Common Stock
LIABILITIES AND EQUITY
Perpetual convertible preferred shares and Common stock subject to redemption	$ 1,332		$ 20,565		$ 11,523
[1]	See Note 9, Equity, for the number of shares outstanding of each class of common stock as of September 30, 2020.
[2]	See Note 10, Equity, for the number of shares outstanding of each class of common stock as of December 31, 2019.

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Noncontrolling interest, units eligible towards redemption (in shares)	556,099	554,110	531,161
Common Stock, par value (in usd per share)	$ 0.001	$ 0.001	$ 0.001
Common stock, number of shares authorized (in shares)	800,000,000	800,000,000	800,000,000
Common stock, number of shares outstanding (in shares)	229,775,115	227,853,720	174,278,341

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenue:
Rental income	$ 100,002	$ 97,435	$ 301,157	$ 277,276	$ 387,108	$ 336,359	$ 346,490
Expenses:
Property operating expense	14,265	14,717	42,158	39,091	55,301	49,509	50,918
Property tax expense	9,330	10,050	28,291	27,722	37,035	44,662	44,980
Property management fees to non-affiliates	1,032	822	2,780	2,620	3,528	0	0
Asset management fees to affiliates					0	23,668	23,499
Property management fees to affiliates					0	9,479	9,782
Self administration transaction expense					0	1,331	0
General and administrative expenses	8,207	7,519	23,280	17,708	26,078	6,968	7,322
Corporate operating expenses to affiliates	625	729	1,875	1,453	2,745	3,594	2,652
Impairment provision	9,572	0	22,195	0	30,734	0	8,460
Depreciation and amortization	39,918	41,440	120,947	112,311	153,425	119,168	116,583
Total expenses	82,949	75,277	241,526	200,905	308,846	258,379	264,196
Income before other income and (expenses)	17,053	22,158	59,631	76,371	78,262	77,980	82,294
Other income (expenses):
Interest expense	(20,314)	(19,560)	(59,321)	(53,642)	(73,557)	(55,194)	(51,015)
Other income (loss), net	238	(1,850)	3,292	(370)	1,340	275	537
(Loss) Gain from investment in unconsolidated entities	(4,452)	3,027	(6,523)	1,919	(5,307)	(2,254)	(2,065)
Management fee revenue from affiliates	0	0	0	6,368	6,368	0	0
Gain from disposition of assets	0	8,441	4,268	8,441	29,938	1,231	116,382
Net (loss) income	(7,475)	12,216	1,347	39,087	37,044	22,038	146,133
Distributions to redeemable preferred shareholders	(2,255)	(2,047)	(6,349)	(6,141)	(8,188)	(3,275)	0
Net loss (income) attributable to noncontrolling interests	1,166	(1,149)	598	(4,226)	(3,749)	(789)	(5,120)
Net (loss) income attributable to controlling interest	(8,564)	9,020	(4,404)	28,720	25,107	17,974	141,013
Distributions to redeemable noncontrolling interests attributable to common stockholders	(43)	(81)	(165)	(240)	(320)	(356)	(356)
Net (loss) income attributable to common stockholders	$ (8,607)	$ 8,939	$ (4,569)	$ 28,480	$ 24,787	$ 17,618	$ 140,657
Net (loss) income attributable to common stockholders per share, basic and diluted	$ (0.04)	$ 0.04	$ (0.02)	$ 0.13	$ 0.11	$ 0.10	$ 0.80
Weighted average number of common shares outstanding, basic and diluted	230,159,620	246,609,614	229,950,613	217,375,026	222,116,812	169,492,659	175,611,890
Cash distributions declared per common share	$ 0.09	$ 0.13	$ 0.32	$ 0.46

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (7,475)	$ 12,216	$ 1,347	$ 39,087	$ 37,044	$ 22,038	$ 146,133
Other comprehensive income (loss):
Equity in other comprehensive (loss) income of unconsolidated joint venture	0	(73)	0	(251)	(217)	122	465
Change in fair value of swap agreements	2,498	(7,318)	(34,612)	(28,080)	(22,303)	(5,301)	6,891
Total comprehensive (loss) income	(4,977)	4,825	(33,265)	10,756	14,524	16,859	153,489
Distributions to redeemable preferred shareholders	(2,255)	(2,047)	(6,349)	(6,141)	(8,188)	(3,275)	0
Distributions to redeemable noncontrolling interests attributable to common stockholders	(43)	(81)	(165)	(240)	(320)	(356)	(356)
Comprehensive loss (income) attributable to noncontrolling interests	867	(314)	4,762	(494)	(695)	(479)	(5,373)
Comprehensive (loss) income attributable to common stockholders	$ (6,408)	$ 2,383	$ (35,017)	$ 3,881	$ 5,321	$ 12,749	$ 147,760

Consolidated Statements of Equi

Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Cumulative Distributions	Accumulated Income (Deficit)	Accumulated Other Comprehensive (Loss) Income	Total Stockholders' Equity	Non-controlling Interests
BALANCE at Dec. 31, 2016	$ 1,223,584	$ 184	$ 1,561,508	$ (333,829)	$ (29,750)	$ (4,642)	$ 1,193,470	$ 30,113
BALANCE (in shares) at Dec. 31, 2016		184,494,771
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Deferred equity compensation	173		173				173
Deferred equity compensation (in shares)		13,625
Cash distributions to common stockholders	(71,156)			(71,156)			(71,156)
Issuance of shares for distribution reinvestment plan		$ 5	49,536	(49,541)
Issuance of shares for distribution reinvestment plan (shares)		5,021,811
Repurchase of common stock	(98,905)	$ (10)	(98,895)				(98,905)
Repurchase of common stock (shares)		(10,408,640)
Reduction of common stock subject to redemption	49,365		49,365				49,365
Mergers	0
Distributions to noncontrolling interests	(4,369)							(4,369)
Distributions to noncontrolling interests subject to redemption	(13)							(13)
Net income	145,777				140,657		140,657	5,120
Other comprehensive income (loss)	7,356					7,102	7,102	254
BALANCE at Dec. 31, 2017	1,251,811	$ 179	1,561,686	(454,526)	110,907	2,460	1,220,706	31,105
BALANCE (in shares) at Dec. 31, 2017		179,121,568
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Deferred equity compensation	38		38				38
Deferred equity compensation (in shares)		8,035
Cash distributions to common stockholders	(75,613)			(75,613)			(75,613)
Issuance of shares for distribution reinvestment plan		$ 4	40,834	(40,838)
Issuance of shares for distribution reinvestment plan (shares)		4,262,336
Repurchase of common stock	(83,574)	$ (9)	(83,565)				(83,574)
Repurchase of common stock (shares)		(9,113,598)
Reduction of common stock subject to redemption	42,736		42,736				42,736
Redemptions in excess of distribution reinvestment plan	0		0				0
Issuance of limited partnership units	205,000							205,000
Issuance of stock dividend for noncontrolling interest								0
Mergers	0
Distributions to noncontrolling interests	(4,368)							(4,368)
Distributions to noncontrolling interests subject to redemption	(13)							(13)
Offering costs	(4,959)		(4,959)				(4,959)
Net income	18,407				17,618		17,618	789
Other comprehensive income (loss)	(5,179)					(4,869)	(4,869)	(310)
BALANCE at Dec. 31, 2018	$ 1,344,286	$ 174	1,556,770	(570,977)	128,525	(2,409)	1,112,083	232,203
BALANCE (in shares) at Dec. 31, 2018	174,278,341	174,278,341
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Deferred equity compensation	$ 75		75				75
Deferred equity compensation (in shares)		7,336
Cash distributions to common stockholders	(21,803)			(21,803)			(21,803)
Issuance of shares for distribution reinvestment plan		$ 1	6,672	(6,673)
Issuance of shares for distribution reinvestment plan (shares)		695,872
Reduction of common stock subject to redemption	(6,673)		(6,673)				(6,673)
Distributions to noncontrolling interests	(4,585)							(4,585)
Distributions to noncontrolling interests subject to redemption	(13)							(13)
Offering costs	(9)		(9)				(9)
Net income	6,530				5,333	0	5,333	1,197
Other comprehensive income (loss)	(8,137)					(6,729)	(6,729)	(1,408)
BALANCE at Mar. 31, 2019	1,309,671	$ 175	1,556,835	(599,453)	133,858	(9,138)	1,082,277	227,394
BALANCE (in shares) at Mar. 31, 2019		174,981,549
BALANCE at Dec. 31, 2018	$ 1,344,286	$ 174	1,556,770	(570,977)	128,525	(2,409)	1,112,083	232,203
BALANCE (in shares) at Dec. 31, 2018	174,278,341	174,278,341
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Mergers	$ 751,278
BALANCE at Sep. 30, 2019	1,839,630	$ 236	2,137,112	(676,890)	157,005	(27,008)	1,590,455	249,175
BALANCE (in shares) at Sep. 30, 2019		235,382,622
BALANCE at Dec. 31, 2018	$ 1,344,286	$ 174	1,556,770	(570,977)	128,525	(2,409)	1,112,083	232,203
BALANCE (in shares) at Dec. 31, 2018	174,278,341	174,278,341
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Gross proceeds from issuance of common stock	$ 9,383		9,383				9,383
Gross proceeds from issuance of common stock (shares)		973,490
Deferred equity compensation	2,623		2,623				2,623
Deferred equity compensation (in shares)		260,039
Cash distributions to common stockholders	(89,836)			(89,836)			(89,836)
Issuance of shares for distribution reinvestment plan	220	$ 4	41,056	(40,840)			220
Issuance of shares for distribution reinvestment plan (shares)		4,298,420
Repurchase of common stock	(296,659)	$ (30)	(296,629)				(296,659)
Repurchase of common stock (shares)		(31,290,588)
Reduction of common stock subject to redemption	(9,042)		(9,042)				(9,042)
Issuance of limited partnership units	25,000							25,000
Issuance of stock dividend for noncontrolling interest	1,861							1,861
Issuance of stock dividends	(1,948)	$ 2	12,189	(14,139)			(1,948)
Issuance of stock dividends (shares)		1,279,084
Mergers	751,277	$ 78	746,160				746,238	5,039
Mergers (shares)		78,054,934
Distributions to noncontrolling interests	(19,716)							(19,716)
Distributions to noncontrolling interests subject to redemption	(45)							(45)
Repurchase of noncontrolling interest								0
Offering costs	(1,906)		(1,906)				(1,906)
Reclass of noncontrolling interest subject to redemption	3							3
Net income	28,536				24,787		24,787	3,749
Other comprehensive income (loss)	(22,520)					(19,466)	(19,466)	(3,054)
BALANCE at Dec. 31, 2019	$ 1,721,517	$ 228	2,060,604	(715,792)	153,312	(21,875)	1,476,477	245,040
BALANCE (in shares) at Dec. 31, 2019	227,853,720	227,853,720
BALANCE at Mar. 31, 2019	$ 1,309,671	$ 175	1,556,835	(599,453)	133,858	(9,138)	1,082,277	227,394
BALANCE (in shares) at Mar. 31, 2019		174,981,549
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Deferred equity compensation	648		648				648
Deferred equity compensation (in shares)		349
Cash distributions to common stockholders	(26,296)			(26,296)			(26,296)
Issuance of shares for distribution reinvestment plan		$ 1	8,805	(8,806)
Issuance of shares for distribution reinvestment plan (shares)		921,864
Repurchase of common stock	(98,928)	$ (10)	(98,918)				(98,928)
Repurchase of common stock (shares)		(10,348,142)
Reduction of common stock subject to redemption	(19,175)		(19,175)				(19,175)
Issuance of limited partnership units	25,000							25,000
Issuance of stock dividend for noncontrolling interest	269							269
Issuance of stock dividends	(2,067)			(2,067)			(2,067)
Mergers	751,277	$ 78	746,160				746,238	5,039
Mergers (shares)		78,054,934
Distributions to noncontrolling interests	(4,903)							(4,903)
Distributions to noncontrolling interests subject to redemption	(11)							(11)
Offering costs	(181)		(181)				(181)
Net income	16,088				14,208		14,208	1,880
Other comprehensive income (loss)	(12,803)					(11,314)	(11,314)	(1,489)
BALANCE at Jun. 30, 2019	1,938,589	$ 244	2,194,174	(636,622)	148,066	(20,452)	1,685,410	253,179
BALANCE (in shares) at Jun. 30, 2019		243,610,554
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Mergers	$ 751,278
BALANCE (in shares) at Apr. 30, 2019	78,054,934
BALANCE (in shares) at Jun. 30, 2019		243,610,554
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Gross proceeds from issuance of common stock	$ 2,576		2,576				2,576
Gross proceeds from issuance of common stock (shares)		264,624
Deferred equity compensation	950		950				950
Deferred equity compensation (in shares)		0
Cash distributions to common stockholders	(21,204)			(21,204)			(21,204)
Issuance of shares for distribution reinvestment plan	242	$ 1	13,140	(12,899)			242
Issuance of shares for distribution reinvestment plan (shares)		1,377,885
Repurchase of common stock	(100,361)	$ (10)	(100,351)				(100,361)
Repurchase of common stock (shares)		(10,524,436)
Reduction of common stock subject to redemption	21,510		21,510				21,510
Issuance of stock dividend for noncontrolling interest	800							800
Issuance of stock dividends	55	$ 1	6,219	(6,165)			55
Issuance of stock dividends (shares)		653,995
Distributions to noncontrolling interests	(5,108)							(5,108)
Distributions to noncontrolling interests subject to redemption	(10)							(10)
Offering costs	(1,106)		(1,106)				(1,106)
Net income	10,088				8,939		8,939	1,149
Other comprehensive income (loss)	(7,391)					(6,556)	(6,556)	(835)
BALANCE at Sep. 30, 2019	1,839,630	$ 236	2,137,112	(676,890)	157,005	(27,008)	1,590,455	249,175
BALANCE (in shares) at Sep. 30, 2019		235,382,622
BALANCE at Dec. 31, 2019	$ 1,721,517	$ 228	2,060,604	(715,792)	153,312	(21,875)	1,476,477	245,040
BALANCE (in shares) at Dec. 31, 2019	227,853,720	227,853,720
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Gross proceeds from issuance of common stock	$ 4,141		4,141				4,141
Gross proceeds from issuance of common stock (shares)		433,328
Deferred equity compensation	984		984				984
Deferred equity compensation (in shares)		17,836
Cash distributions to common stockholders	(23,627)			(23,627)			(23,627)
Issuance of shares for distribution reinvestment plan	4,155	$ 1	12,116	(7,962)			4,155
Issuance of shares for distribution reinvestment plan (shares)		1,297,656
Repurchase of common stock	(5,110)		(5,110)				(5,110)
Repurchase of common stock (shares)		(548,312)
Reduction of common stock subject to redemption	(85,180)		(85,180)				(85,180)
Issuance of stock dividend for noncontrolling interest	802							802
Issuance of stock dividends	19	$ 1	5,766	(5,748)			19
Issuance of stock dividends (shares)		617,327
Distributions to noncontrolling interests	(5,069)							(5,069)
Distributions to noncontrolling interests subject to redemption	(11)							(11)
Offering costs	(604)		(604)				(604)
Net income	848				737		737	111
Other comprehensive income (loss)	(30,826)					(27,118)	(27,118)	(3,708)
BALANCE at Mar. 31, 2020	1,582,039	$ 230	1,992,717	(753,129)	154,049	(48,993)	1,344,874	237,165
BALANCE (in shares) at Mar. 31, 2020		229,671,555
BALANCE at Dec. 31, 2019	$ 1,721,517	$ 228	2,060,604	(715,792)	153,312	(21,875)	1,476,477	245,040
BALANCE (in shares) at Dec. 31, 2019	227,853,720	227,853,720
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of stock dividend for noncontrolling interest								1,068
Mergers	$ 0
Distributions to noncontrolling interests								(10,556)
Repurchase of noncontrolling interest								1,137
Reclass of noncontrolling interest subject to redemption								263
Net income								(598)
Other comprehensive income (loss)								(4,165)
BALANCE at Sep. 30, 2020	$ 1,633,044	$ 230	2,100,047	(793,546)	148,743	(52,322)	1,403,152	229,892
BALANCE (in shares) at Sep. 30, 2020	229,775,115	229,775,115
BALANCE at Mar. 31, 2020	$ 1,582,039	$ 230	1,992,717	(753,129)	154,049	(48,993)	1,344,874	237,165
BALANCE (in shares) at Mar. 31, 2020		229,671,555
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Deferred equity compensation	1,139		1,139				1,139
Deferred equity compensation (in shares)		20,138
Cash distributions to common stockholders	(20,087)			(20,087)			(20,087)
Issuance of shares for distribution reinvestment plan			(2)	2
Issuance of shares for distribution reinvestment plan (shares)		(220)
Repurchase of common stock	(3)		(3)				(3)
Repurchase of common stock (shares)		(301)
Reduction of common stock subject to redemption	105,745		105,745				105,745
Issuance of stock dividend for noncontrolling interest	266							266
Issuance of stock dividends	1,922		1,922				1,922
Issuance of stock dividends (shares)		206,765
Distributions to noncontrolling interests	(2,731)							(2,731)
Distributions to noncontrolling interests subject to redemption	(6)							(6)
Repurchase of noncontrolling interest	(496)							(496)
Offering costs	(26)		(26)				(26)
Reclass of noncontrolling interest subject to redemption	253							253
Net income	3,758				3,301		3,301	457
Other comprehensive income (loss)	(6,284)					(5,528)	(5,528)	(756)
BALANCE at Jun. 30, 2020	1,665,489	$ 230	2,101,492	(773,214)	157,350	(54,521)	1,431,337	234,152
BALANCE (in shares) at Jun. 30, 2020		229,897,937
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Deferred equity compensation	992		992				992
Cash distributions to common stockholders	(12,856)			(12,856)			(12,856)
Issuance of shares for distribution reinvestment plan	(2,425)	$ 1	5,050	(7,476)			(2,425)
Issuance of shares for distribution reinvestment plan (shares)		570,377
Repurchase of common stock	(6,145)	$ (1)	(6,144)				(6,145)
Repurchase of common stock (shares)		(693,199)
Reduction of common stock subject to redemption	(1,331)		(1,331)				(1,331)
Distributions to noncontrolling interests	(2,756)							(2,756)
Distributions to noncontrolling interests subject to redemption	(6)							(6)
Repurchase of noncontrolling interest	(641)							(641)
Offering costs	(12)		(12)				(12)
Reclass of noncontrolling interest subject to redemption	10							10
Net income	(9,773)				(8,607)		(8,607)	(1,166)
Other comprehensive income (loss)	2,498					2,199	2,199	299
BALANCE at Sep. 30, 2020	$ 1,633,044	$ 230	$ 2,100,047	$ (793,546)	$ 148,743	$ (52,322)	$ 1,403,152	$ 229,892
BALANCE (in shares) at Sep. 30, 2020	229,775,115	229,775,115

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating Activities:
Net (loss) income	$ 1,347	$ 39,087	$ 37,044	$ 22,038	$ 146,133
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of building and building improvements	69,956	57,473	80,394	60,120	55,982
Amortization of leasing costs and intangibles, including ground leasehold interests and leasing costs	50,990	54,838	73,031	59,048	60,601
Amortization of below market leases, net	(1,765)	(2,639)	(3,201)	(685)	1,689
Amortization of deferred financing costs and debt premium	1,929	4,926	5,562	3,071	2,444
Amortization of swap interest	95	94	126	126	0
Deferred rent	(19,442)	(9,655)	(19,519)	(8,571)	(11,372)
Deferred rent, ground lease	1,548	1,129	1,640	0	0
Termination fee revenue — receivable from tenant, net	0	(7,501)	(6,000)	(3,114)	(12,845)
Gain from sale of depreciable operating property	(4,268)	(8,441)	(29,940)	(1,231)	(116,382)
(Gain) loss on fair value of earn-out	(2,581)	0	(1,461)	0	0
Unrealized loss on interest rate swap			0	2	68
Loss (Income) from investment in unconsolidated entities	2,071	(1,919)	5,307	2,254	2,065
Investment in unconsolidated entities valuation adjustment	4,452	0
Impairment provision	22,195	0	30,734	0	8,460
(Gain) loss from investments	(118)	457	307	0	0
Stock-based compensation	3,116	1,673	2,623	38	173
Performance distribution allocation (non-cash)	0	(2,604)	(2,604)	0	0
Change in operating assets and liabilities:
Deferred leasing costs and other assets	(3,758)	(5,380)	(7,775)	(13,503)	3,332
Restricted reserves	382	(79)	14	57	(175)
Accrued expenses and other liabilities	5,598	(8,943)	(9,505)	3,463	1,098
Due to affiliates, net	(2,794)	6,907	4,072	(2,254)	826
Net cash provided by operating activities	128,953	119,423	160,849	120,859	142,097
Investing Activities:
Cash acquired in connection with the Mergers, net of acquisition costs	0	25,321	25,320	0	0
Acquisition of properties, net	(16,584)	(37,781)	(38,775)	(182,250)	(134,130)
Proceeds from disposition of properties	23,480	46,784	139,446	11,442	394,502
Restricted reserves	159	2,030
Reserves for tenant improvements			1,039	(357)	0
Improvements to real estate			0	0	(760)
Payments for construction in progress	(41,981)	(29,447)	(46,346)	(24,398)	(11,293)
Real estate acquisition deposits	1,047	0	(1,047)	(3,350)	(1,350)
Investment in unconsolidated joint venture			0	(3,274)	0
Distributions of capital from investment in unconsolidated entities	8,530	13,189	14,603	7,691	7,599
Contributions of capital for investment in unconsolidated entities	(8,160)	0
Purchase of investments	(950)	(8,353)	(8,422)	0	0
Net cash provided by (used in) investing activities	(34,459)	11,743	85,818	(194,496)	254,568
Financing Activities:
Proceeds from borrowings — BOA Loan			0	0	375,000
Proceeds from borrowings — Term Loan	0	627,000	627,000	0	0
Proceeds from borrowings — Revolver Loan	215,000	215,854	315,854	0	0
Proceeds from borrowings — Revolver Loan - EA-1			0	96,100	54,000
Principal payoff of secured indebtedness — Unsecured Credit Facility - EA-1	(25,000)	(715,000)	(715,000)	(106,253)	(441,256)
Principal payoff of secured indebtedness — Revolver Loan	0	(44,439)	(104,439)	0	0
Principal payoff of secured indebtedness — Mortgage Debt			0	(18,954)	(41,493)
Partial principal payoff of TW Telecom loan			0	0	(324)
Principal amortization payments on secured indebtedness	(5,341)	(4,903)	(6,577)	(6,494)	(6,491)
Repurchase of common stock	(101,761)	(98,928)	(200,013)	(83,574)	(98,906)
Repurchase of noncontrolling interest	(1,137)	0	(53)	0	0
Deferred financing costs	(145)	(5,737)	(5,737)	(24)	(3,329)
Issuance of common stock, net of discounts and underwriting costs	4,699	2,789	8,826	0	0
Issuance of perpetual convertible preferred shares			0	125,000	0
Dividends paid on preferred units subject to redemption	(6,141)	(6,141)	(8,188)	(1,228)	0
Distributions to noncontrolling interests	(10,521)	(12,506)	(16,865)	(4,737)	(4,737)
Distributions to common stockholders	(59,354)	(69,558)	(90,116)	(71,822)	(71,124)
Net cash used in financing activities	9,809	(113,276)	(197,692)	(76,945)	(238,660)
Net increase (decrease) in cash, cash equivalents and restricted cash	104,303	17,890	48,975	(150,582)	158,005
Cash, cash equivalents and restricted cash at the beginning of the period	113,260	64,285	64,285	214,867	56,862
Cash, cash equivalents and restricted cash at the end of the period	217,563	82,175	113,260	64,285	214,867
Supplemental disclosure of cash flow information:
Cash paid for interest			65,040	50,736	48,253
Supplemental disclosures of non-cash investing and financing transactions:
Decrease in fair value swap agreement	(34,612)	(28,080)	(22,303)	(5,427)	(6,795)
Goodwill -Self Administration Transaction			0	229,948	0
Affiliates - receivables and other related party assets acquired in Self Administration Transaction			0	19,878	0
Increase in distributions payable to common stockholders	6,638	13,105	3,293	3,792	32
Increase in distributions payable to noncontrolling interests	913	1,697	1,355	0	0
Common stock issued pursuant to the distribution reinvestment plan	17,165	28,378	41,060	40,838	49,541
Increase in redemptions payable			96,648	0	20,382
Issuance of limited partnership units	0	25,000
Issuance of stock dividends	5,747	6,165	14,139	0	0
Limited partnership units issued in exchange for net assets acquired in Self Administration Transaction			25,000	205,000	0
Due to affiliates- Self Administration Transaction			0	41,114	0
Other liabilities assumed in Self Administration Transaction			0	7,951	0
Distributions to redeemable noncontrolling interests attributable to common stockholders as reflected on the consolidated statements of operations			0	355	356
Common stock redemptions funded subsequent to period-end	(6,145)	(100,362)
Mortgage debt assumed in conjunction with the acquisition of real estate assets plus a premium of $109	18,884	0
Payable for construction in progress	6,902	4,855
Accrued tenant obligations	26,891	0	11,802
Net assets acquired in Merger in exchange for common shares	0	751,278	751,277	0	0
Implied EA-1 common stock and operating partnership units issued in exchange for net assets acquired in Merger	0	751,278	751,277	0	0
Operating lease right-of-use assets obtained in exchange for lease liabilities upon adoption of ASC 842	0	25,521	16,919
Common Stock
Financing Activities:
Payment of offering costs	$ (490)	$ (1,707)	(2,384)	0	0
Supplemental disclosures of non-cash investing and financing transactions:
Implied EA-1 common stock and operating partnership units issued in exchange for net assets acquired in Merger			78
Preferred Stock
Financing Activities:
Payment of offering costs			$ 0	$ (4,959)	$ 0

Consolidated Statements of Ca_2

Consolidated Statements of Cash Flows (Parenthetical) $ in Thousands	Sep. 30, 2020USD ($)
Statement of Cash Flows [Abstract]
Premium on debt assumed	$ 109

Organization

Organization	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	1. Organization Griffin Capital Essential Asset REIT, Inc. (“GCEAR”) is a internally managed real estate investment trust (“REIT”) organized primarily with the purpose of acquiring single tenant office and industrial net lease properties essential to the business operations of the tenant. GCEAR’s year-end On December 14, 2018, GCEAR, Griffin Capital Essential Asset Operating Partnership II, L.P. (the “GCEAR II Operating Partnership”), GCEAR’s wholly-owned subsidiary Globe Merger Sub, LLC (“Merger Sub”), the entity formerly known as Griffin Capital Essential Asset REIT, Inc. (“EA-1”), “EA-1 (i) EA-1 EA-1 EA-1 EA-1’s EA-1 In addition, on December 14, 2018, EA-1 EA-1 EA-1’s EA-1’s EA-1 EA-1 EA-1 In connection with the Mergers, GCEAR was the legal acquirer and EA-1 EA-1’s Unless the context requires otherwise, all references to the “Company,” “we,” “our,” and “us” herein mean EA-1 EA-1’s On September 20, 2017, GCEAR commenced a follow-on “Follow-On Equity Follow-On The Current Operating Partnership owns, directly or indirectly, all of the properties that the Company has acquired. As of September 30, 2020, the Company owned approximately 87.8% of the OP Units of the Current Operating Partnership. As a result of the contribution of five properties to the Company and the Self-Administration Transaction, the former sponsor and certain of its affiliates owned approximately 10.6% of the limited partnership units of the Current Operating Partnership, including approximately 2.4 million units owned by the Company’s Executive Chairman and Chairman of the Board, Kevin A. Shields, as of September 30, 2020. The remaining approximately 1.6% OP Units are owned by unaffiliated third parties. The Current Operating Partnership may conduct certain activities through one or more of the Company’s taxable REIT subsidiaries, which are wholly-owned subsidiaries of the Current Operating Partnership. As of September 30, 2020, the Company had issued 283,769,972 shares (approximately $2.8 billion) of common stock since November 9, 2009 in various private offerings, public offerings, DRP offerings and mergers (includes EA-1 EA-1	1. Organization Griffin Capital Essential Asset REIT, Inc., formerly known as Griffin Capital Essential Asset REIT II, Inc. (“GCEAR”), is a real estate investment trust (“REIT”) organized primarily with the purpose of acquiring single tenant net lease properties essential to the business operations of the tenant, and has used a substantial amount of the net investment proceeds from its offerings to invest in such properties. GCEAR’s year-end On December 14, 2018, GCEAR, Griffin Capital Essential Asset Operating Partnership II, L.P. (the “GCEAR II Operating Partnership”), GCEAR’s wholly-owned subsidiary Globe Merger Sub, LLC (“Merger Sub”), the entity formerly known as Griffin Capital Essential Asset REIT, Inc. (“EA-1”), “EA-1 (i) EA-1 EA-1 EA-1 EA-1’s EA-1’s EA-1 In connection with the Mergers, GCEAR was the legal acquirer and EA-1 Real Estate EA-1’s Unless the context requires otherwise, all references to the “Company,” “we,” “our,” and “us” herein mean EA-1 EA-1’s Prior to the Mergers, on December 14, 2018, EA-1 EA-1 EA-1’s EA-1’s EA-1 EA-1 earn-out EA-1 EA-1 On December 12, 2018, in connection with the Mergers, the board of directors (the “Board”) of the Company approved the temporary suspension of the distribution reinvestment plan (“DRP”) and share redemption program (“SRP”) (the board of directors of EA-1 EA-1 EA-1’s On September 20, 2017, GCEAR commenced a follow-on “Follow-On Follow-On Follow-On Follow-On , Subsequent Events, Follow-on The Current Operating Partnership owns, directly or indirectly, all of the properties that the Company has acquired. As of December 31, 2019, the Company owned approximately 87.7% of the OP Units of the Current Operating Partnership. As a result of the contribution of five properties to the Company and the Self Administration Transaction, the former sponsor and certain of its affiliates, including certain officers of the Company, owned approximately 10.6% of the OP Units of the Current Operating Partnership, including approximately 2.4 million units owned by the Company’s Executive Chairman and Chairman of the Board, Kevin A. Shields, as of December 31, 2019. The remaining approximately 1.7% OP Units are owned by unaffiliated third parties. 6,000 OP Units of the Current Operating Partnership have been redeemed during the years ended December 31, 2019 and 2018. The Current Operating Partnership may conduct certain activities through one or more of the Company’s taxable REIT subsidiaries, which are wholly-owned subsidiaries of the Current Operating Partnership. Since November 9, 2009, the Company had issued 281,468,830 shares of common stock as of December 31, 2019. The Company has received aggregate gross offering proceeds of approximately $2.7 billion from the sale of shares in its various private offerings, public offerings, and DRP offerings (shares and gross offering proceeds include EA-1

Basis of Presentation and Summa

Basis of Presentation and Summary of Significant Accounting Policies	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Accounting Policies [Abstract]
Basis of Presentation and Summary of Significant Accounting Policies	2. Basis of Presentation and Summary of Significant Accounting Policies There have been no significant changes to the Company’s accounting policies since the Company filed its audited financial statements in its Annual Report on Form 10-K 10-K The accompanying unaudited consolidated financial statements of the Company are prepared by management on the accrual basis of accounting and in accordance with generally accepted accounting principles in the United States (“GAAP”) for interim financial information as contained in the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”), and in conjunction with rules and regulations of the SEC. Certain information and footnote disclosures required for annual financial statements have been condensed or excluded pursuant to SEC rules and regulations. Accordingly, the unaudited consolidated financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. The unaudited consolidated financial statements include accounts and related adjustments, which are, in the opinion of management, of a normal recurring nature and necessary for a fair presentation of the Company’s financial position, results of operations and cash flows for the interim period. Operating results for the three and nine months ended September 30, 2020 are not necessarily indicative of the results that may be expected for the year ending December 31, 2020. These unaudited consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K 10-Q 10-K 10-Q The consolidated financial statements of the Company include all accounts of the Company, the Current Operating Partnership, and its subsidiaries. Intercompany transactions are not shown on the consolidated statements. However, each property-owning entity is a wholly-owned subsidiary which is a special purpose entity (“SPE”), whose assets and credit are not available to satisfy the debts or obligations of any other entity, except to the extent required with respect to any co-borrower Use of Estimates The preparation of the unaudited consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the unaudited consolidated financial statements and accompanying notes. Actual results could materially differ from those estimates. Per Share Data The Company reports earnings per share for the period as (1) basic earnings per share computed by dividing net income (loss) attributable to common stockholders by the weighted average number of common shares outstanding during the period, and (2) diluted earnings per share computed by dividing net income (loss) attributable to common stockholders by the weighted average number of common shares outstanding, including common stock equivalents. As of September 30, 2020 and December 31, 2019, there were no material common stock equivalents that would have a dilutive effect on earnings (loss) per share for common stockholders. During the quarter ended September 30, 2020, the Company retroactively adjusted the number of common shares outstanding in accordance with ASC 260-10, 260-10”). 260-10 Segment Information ASC 280, Segment Reporting, establishes standards for reporting financial and descriptive information about a public entity’s reportable segments. The Company internally evaluates all of the properties and interests therein as one reportable segment. Goodwill Goodwill represents the excess of consideration paid over the fair value of underlying identifiable net assets of business acquired. The Company’s goodwill has an indeterminate life and is not amortized, but is tested for impairment on an annual basis, or more frequently if events or changes in circumstances indicate that the asset might be impaired. The Company takes a qualitative approach to consider whether an impairment of goodwill exists prior to quantitatively determining the fair value of the reporting unit in step one of the impairment test. The Company performs its annual assessment on October 1st. Recently Issued Accounting Pronouncements Changes to GAAP are established by the FASB in the form of ASUs to the FASB’s Accounting Standards Codification. The Company considers the applicability and impact of all ASUs. Other than the ASUs discussed below, the FASB has not recently issued any other ASUs that the Company expects to be applicable and have a material impact on the Company’s financial statements. Adoption of New Accounting Pronouncements During the first quarter of 2020, the FASB issued ASU 2020-04, 2020-04 2020-04	2. Basis of Presentation and Summary of Significant Accounting Policies The accompanying consolidated financial statements of the Company are prepared by management on the accrual basis of accounting and in accordance with generally accepted accounting principles in the United States (“GAAP”) as contained in the Financial Accounting Standards Board Accounting Standards Codification The consolidated financial statements of the Company include all accounts of the Company, the Current Operating Partnership, and its subsidiaries. Intercompany transactions are not shown on the consolidated statements. However, each property owning entity is a wholly owned subsidiary which is a special purpose entity (“SPE”), whose assets and credit are not available to satisfy the debts or obligations of any other entity, except to the extent required with respect to any co-borrower Principles of Consolidation The Company’s financial statements, and the financial statements of the Current Operating Partnership, including its wholly-owned subsidiaries, are consolidated in the accompanying consolidated financial statements. The portion of these entities not wholly-owned by the Company is presented as noncontrolling interests. All significant intercompany accounts and transactions have been eliminated in consolidation. Consolidation Considerations Current accounting guidance provides a framework for identifying a variable interest entity (“VIE”) and determining when a company should include the assets, liabilities, noncontrolling interests, and results of activities of a VIE in its consolidated financial statements. In general, a VIE is an entity or other legal structure used to conduct activities or hold assets that either (1) has an insufficient amount of equity to carry out its principal activities without additional subordinated financial support, (2) has a group of equity owners that are unable to make significant decisions about its activities, or (3) has a group of equity owners that do not have the obligation to absorb losses or the right to receive returns generated by its operations. Generally, a VIE should be consolidated if a party with an ownership, contractual, or other financial interest in the VIE (a variable interest holder) has the power to direct the VIE’s most significant activities and the obligation to absorb losses or right to receive benefits of the VIE that could be significant to the VIE. A variable interest holder that consolidates the VIE is called the primary beneficiary. Upon consolidation, the primary beneficiary generally must initially record all of the VIE’s assets, liabilities, and noncontrolling interest at fair value and subsequently account for the VIE as if it were consolidated based on majority voting interest. See Note 5, Investments, . Cash and Cash Equivalents The Company considers all short-term, highly liquid investments that are readily convertible to cash with a maturity of three months or less at the time of purchase to be cash equivalents. Cash and cash equivalents may include cash and short-term investments. Short-term investments are stated at cost, which approximates fair value. There were no cash equivalents, nor were there restrictions on the use of the Company’s cash balance as of December 31, 2019 and 2018. The Company maintains its cash accounts with major financial institutions. The cash balances consist of business checking accounts. These accounts are insured by the Federal Deposit Insurance Corporation up to $250,000 at each institution. The Company has not experienced any losses with respect to cash balances in excess of government provided insurance. Management believes there was no significant concentration of credit risk with respect to these cash balances as of December 31, 2019. Restricted Cash In conjunction with acquisitions of certain assets, as required by certain lease provisions or certain lenders in conjunction with an acquisition or debt financing, or credits received by the seller of certain assets, the Company assumed or funded reserves for specific property improvements and deferred maintenance, re-leasing Real Estate Purchase Price Allocation The Company applies the provisions in ASC 805-10, Business Combinations “ 805-10”), 805-10 Acquired in-place in-place in-place non-cancelable in-place The aggregate relative fair value of in-place in-place in-place lease-up The determination of the relative fair values of the assets and liabilities acquired requires the use of significant assumptions about current market rental rates, rental growth rates, discount rates and other variables. Depreciation and Amortization The purchase price of real estate acquired and costs related to development, construction, and property improvements are capitalized. Repairs and maintenance costs include all costs that do not extend the useful life of the real estate asset and are expensed as incurred. The Company considers the period of future benefit of an asset to determine the appropriate useful life. The Company anticipates the estimated useful lives of its assets by class to be generally as follows: Buildings 25-40 Building Improvements 5-20 Land Improvements 15-25 Tenant Improvements Shorter of estimated useful life or remaining contractual lease term Tenant Origination and Absorption Cost Remaining contractual lease term In-place Remaining contractual lease term with consideration as to below-market extension options for below-market leases If a lease is terminated or amended prior to its scheduled expiration, the Company will accelerate/extend the remaining useful life of the unamortized lease-related costs. Assets Held for Sale The Company accounts for properties held for sale in accordance with ASC 360, Property, Plant, and Equipment No. 2014-08, Presentation of Financial Statements and Property, Plant, and Equipment: Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity No. 2014-08”). No. 2014-08, In accordance with ASC 205, a component of an entity or a group of components of an entity, or a business or nonprofit activity (the entity to be sold) shall be classified as held for sale in the period in which all of the required criteria are met. In accordance with ASC 360, upon being classified as held for sale, a property is carried at the lower of (i) its carrying amount or (ii) fair value less costs to sell. In addition, a property being held for sale ceases to be depreciated. Impairment of Real Estate and Related Intangible Assets In accordance with the provisions of the Impairment or Disposal of Long-Lived Assets Subsections of ASC 360, the Company assess the carrying values of our respective long-lived assets, whenever events or changes in circumstances indicate that the carrying amounts of these assets may not be fully recoverable. Recoverability of real estate assets is measured by comparison of the carrying amount of the asset to the estimated future undiscounted cash flows. To review real estate assets for recoverability, the Company considers current market conditions as well as the Company’s intent with respect to holding or disposing of the asset. The intent with regard to the underlying assets might change as market conditions and other factors change. Fair value is determined through various valuation techniques, including discounted cash flow models, applying a capitalization rate to estimated net operating income of a property, quoted market values and third party appraisals, where considered necessary. The use of projected future cash flows is based on assumptions that are consistent with estimates of future expectations and the strategic plan used to manage the Company’s underlying business. If the Company analysis indicates that the carrying value of the real estate asset is not recoverable on an undiscounted cash flow basis, the Company will recognize an impairment charge for the amount by which the carrying value exceeds the current estimated fair value of the real estate property. Projections of expected future undiscounted cash flows require management to estimate future market rental income amounts subsequent to the expiration of current lease agreements, property operating expenses, discount rates, the number of months it takes to re-lease Goodwill Goodwill represents the excess of consideration paid over the fair value of underlying identifiable net assets of business acquired. The Company’s goodwill has an indeterminate life and is not amortized, but is tested for impairment on an annual basis, or more frequently if events or changes in circumstances indicate that the asset might be impaired. The Company takes a qualitative approach to consider whether an impairment of goodwill exists prior to quantitatively determining the fair value of the reporting unit in step one of the impairment test. The Company performs its annual assessment on October 1st. The Company did not record any impairment of goodwill during the year ended December 31, 2019. Revenue Recognition Leases associated with the acquisition and contribution of certain real estate assets have net minimum rent payment increases during the term of the lease and are recorded to rental revenue on a straight-line basis, commencing as of the contribution or acquisition date. If a lease provides for contingent rental income, the Company will defer the recognition of contingent rental income, such as percentage rents, until the specific target that triggers the contingent rental income is achieved. Tenant reimbursement revenue, which is comprised of additional amounts collected from tenants for the recovery of certain operating expenses, including repair and maintenance, property taxes (excluding taxes paid by a lessee directly to a third party on behalf of the lessor) and insurance, and capital expenditures, to the extent allowed pursuant to the lease (collectively, “Recoverable Expenses”), is recognized as revenue when the additional rent is due. Recoverable Expenses to be reimbursed by a tenant are determined based on the Company’s estimate of the property’s operating expenses for the year, pro rated based on leased square footage of the property, and are collected in equal installments as additional rent from the tenant, pursuant to the terms of the lease. At the end of each quarter, the Company reconciles the amount of additional rent paid by the tenant during the quarter to the actual amount of the Recoverable Expenses incurred by the Company for the same period. The difference, if any, is either charged or credited to the tenant pursuant to the provisions of the lease. In certain instances, the lease may restrict the amount the Company can recover from the tenant such as a cap on certain or all property operating expenses. In a situation in which a lease associated with a significant tenant has been, or is expected to be, terminated early, or extended, the Company evaluates the remaining useful life of amortizable assets in the asset group related to the lease that will be terminated (i.e., above- and below-market lease intangibles, in-place lease may write-off or Derivative Instruments and Hedging Activities ASC 815, Derivatives and Hedging As required by ASC 815, the Company recorded all derivatives on the consolidated balance sheet at fair value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, and whether the Company has elected to designate a derivative in a hedging relationship and apply hedge accounting and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. Derivatives designated and qualifying as a hedge of the exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges. Derivatives designated and qualifying as a hedge of the exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered cash flow hedges. Hedge accounting generally provides for the matching of the timing of gain or loss recognition on the hedging instrument with the recognition of the changes in the fair value of the hedged asset or liability that are attributable to the hedged risk in a fair value hedge or the earnings effect of the hedged forecasted transactions in a cash flow hedge. The Company may enter into derivative contracts that are intended to economically hedge certain risks, even though hedge accounting does not apply or the Company elects not to apply hedge accounting. See Note 7, Interest Rate Contracts Income Taxes The Company has elected to be taxed as a REIT under the Code. To qualify as a REIT, the Company must meet certain organizational and operational requirements. The Company intends to adhere to these requirements and maintain its REIT status for the current year and subsequent years. As a REIT, the Company generally will not be subject to federal income taxes on taxable income that is distributed to stockholders. However, the Company may be subject to certain state and local taxes on its income and property, and federal income and excise taxes on its undistributed taxable income, if any. If the Company fails to qualify as a REIT in any taxable year, the Company will then be subject to federal income taxes on the taxable income at regular corporate rates and will not be permitted to qualify for treatment as a REIT for federal income tax purposes for four years following the year during which qualification is lost unless the Internal Revenue Service (“IRS”) grants the Company relief under certain statutory provisions. Such an event could materially adversely affect net income and net cash available for distribution to stockholders. As of December 31, 2019, the Company satisfied the REIT requirements and distributed all of its taxable income. Pursuant to the Code, the Company has elected to treat its corporate subsidiary as a TRS. In general, the TRS may perform non-customary Investments Use of Estimates The preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could materially differ from those estimates. Per Share Data The Company reports earnings per share for the period as (1) basic earnings per share computed by dividing net income (loss) attributable to common stockholders by the weighted average number of common shares outstanding during the period, and (2) diluted earnings per share computed by dividing net income (loss) attributable to common stockholders by the weighted average number of common shares outstanding, including common stock equivalents. As of December 31, 2019 and December 31, 2018, there were no material common stock equivalents that would have a dilutive effect on earnings (loss) per share for common stockholders. During the year ended December 31, 2019, the Company retroactively adjusted the number of common shares outstanding in accordance with ASC 260-10, 260-10”). 260-10 Segment Information ASC 280, Segment Reporting, establishes standards for reporting financial and descriptive information about a public entity’s reportable segments. The Company internally evaluates all of the properties and interests therein as one reportable segment. Change in Consolidated Financial Statements Presentation Certain amounts in the Company’s prior period consolidated financial statements have been reclassified to conform to the current period presentation. Recoverable state tax expenses have been reclassified from general and administrative expenses to property operating expenses on the statement of operations for all periods presented. Unaudited Data Any references to the number of buildings, square footage, number of leases, occupancy, and any amounts derived from these values in the notes to the consolidated financial statements are unaudited and outside the scope of the Company’s independent registered public accounting firm’s audit of its consolidated financial statements in accordance with the standards of the Public Company Accounting Oversight Board (“PCAOB”). Recently Issued Accounting Pronouncements Changes to GAAP are established by the FASB in the form of ASUs to the FASB’s Accounting Standards Codification. The Company consider the applicability and impact of all ASUs. Other than the ASUs discussed below, the FASB has not recently issued any other ASUs that the Company expect to be applicable and have a material impact on the Company’s financial statements. Adoption of New Accounting Pronouncements On February 25, 2016, the FASB issued ASU 2016-02, 2016-02”), 2016-02 2018-10, 2018-11, 2018-20, 2019-01, On January 1, 2019, the Company adopted ASC 842 using the modified retrospective approach and elected to apply the provisions as of the date of adoption on a prospective basis. Upon adoption of ASC 842, the Company elected the “package of practical expedients,” which allowed the Company to not reassess (a) whether expired or existing contracts as of January 1, 2019 are or contain leases, (b) the lease classification for any expired or existing leases as of January 1, 2019, and (c) the treatment of initial direct costs relating to any existing leases as of January 1, 2019. The package of practical expedients was made as a single election and was consistently applied to all leases that commenced before January 1, 2019. Lessor ASC 842 requires lessors to account for leases using an approach that is substantially equivalent to existing guidance for sales-type leases, direct financing leases, and operating leases. As the Company elected the package of practical expedients, the Company’s existing leases as of January 1, 2019 continue to be accounted for as operating leases. Upon adoption of ASC 842, the Company elected the practical expedient permitting lessors to elect by class of underlying asset to not separate nonlease components (for example, maintenance services, including common area maintenance) from associated lease components (the “non-separation non-lease non-separation Under ASC 842, lessors are required to record revenues and expenses on a gross basis for lessor costs (which include real estate taxes) when these costs are reimbursed by a lessee. Conversely, lessors are required to record revenues and expenses on a net basis for lessor costs when they are paid by a lessee directly to a third party on behalf of the lessor. Prior to the adoption of ASC 842, the Company recorded revenues and expenses on a gross basis for real estate taxes whether they were reimbursed to the Company by a tenant or paid directly by a tenant to the taxing authorities on the Company’s behalf. Effective January 1, 2019, the Company is recording these costs in accordance with ASC 842. Lessee ASC 842 requires lessees to recognize the following for all leases (with the exception of short-term leases) at the commencement date: (1) a lease liability, which is a lessee’s obligation to make lease payments arising from a lease, measured on a discounted basis; and (2) a right-of-use On January 1, 2019, the Company was the lessee on two ground leases, which were classified as operating leases under ASC 840. As the Company elected the packages of practical expedients, the Company is not required to reassess the classification of these existing leases and, as such, these leases continue to be accounted for as operating leases. In the event the Company modifies existing leases or enters into new leases in the future, such leases may be classified as finance leases. On January 1, 2019, the Company recognized ROU assets and lease liabilities for these leases on the Company’s consolidated balance sheets, and on a go-forward pre-existing On March 1, 2019. the Company entered into an office lease located in Chicago, Illinois. The Company recorded a ROU asset of $0.6 million and a corresponding liability to the Company’s lease agreements (see Note 14 , Operating Leases, On September 20, 2019, the Company acquired the McKesson II property (defined in Note 4 , Real Estate , Operating Leases, Upon adoption of ASC 842, the Company also elected the practical expedient to not separate non-lease Reclassification of the Prior Year Presentation of Rental Income and Property Expense Recovery As described below, rental income, termination income and property expense recovery related to the Company’s operating leases for which the Company is the lessor qualified for the single component practical expedient and was classified as rental income in the Company’s consolidated statements of operations. Prior to the adoption of the new lease accounting standard, the Company classified rental income, termination income and property expense recovery separately in the Company’s consolidated statements of operations, in accordance with the guidance in effect prior to January 1, 2019. Upon adoption of the new lease accounting standard, the Company’s comparative statements of operations from the prior period have been reclassified to conform to the new single component presentation of rental income, termination income and property expense recovery, classified within “Rental Income” in the Company’s consolidated statements of operations. The table below provides a reconciliation of the prior period presentation of the statement of operations line items that were reclassified in the Company’s consolidated statement of operations to conform to the current period presentation, pursuant to the adoption of the new lease accounting standard and election of the single component practical expedient (in thousands): Year Ended December 31, 2018 2017 Presentation prior to January 1, 2019 Lease income $ 247,442 $ 257,465 Lease termination income 15,671 14,604 Property expense recoveries 73,246 74,421 Rental income $ 336,359 $ 346,490

Self Administration Transaction

Self Administration Transaction	12 Months Ended
	Dec. 31, 2019
Business Combinations [Abstract]
Self Administration Transaction	3 Self Administration Transaction Fair Value of Consideration Transferred The Company accounted for the Self Administration Transaction as a business combination under the acquisition method of accounting. Under the terms of the Self Administration Transaction, the following consideration was given in exchange for 100% of the membership interests in GRECO: Amount Fair value of EA-1 $ 205,000 Fair value of earn-outs 29,380 Accrued liabilities: Executive deferred compensation plan 7,795 Other liabilities 11,890 Total consideration 254,065 Less: accounts receivable from affiliates and other assets (19,878 ) Net consideration $ 234,187 As part of the Self Administration Transaction, the Current Operating Partnership issued 20.4 million OP Units with an estimated fair value per unit of $10.03. The terms of the Self Administration Transaction included two earn-outs structured with an estimated fair value obligation of approximately $29.4 million. Assets Acquired and Liabilities Assumed The Self Administration Transaction was accounted for using the acquisition method of accounting under ASC 805, Business Combinations (“ASC 805”), which requires, among other things, the assets acquired and liabilities assumed to be recognized at their fair values as of the acquisition date. During the nine months ended September 30, 2019, the Company finalized the purchase price allocation for the Self Administration Transaction. The following table summarizes the finalized purchase price allocation: Amount Assets: Accounts receivable from affiliates and other assets $ 19,878 Management contract intangibles 4,239 Goodwill 229,948 Total assets acquired 254,065 Liabilities: Earn-outs (due to affiliates) 29,380 Executive deferred compensation plan 7,795 Other liabilities 11,890 Total liabilities assumed 49,065 Net assets acquired $ 205,000 The intangible assets acquired primarily consist of property management and advisory contracts that the Company, as advisor and property manager through certain subsidiaries, had with GCEAR. The value of the contracts was determined based on a discounted cash flow valuation of the projected revenues of the acquired contracts. The contracts are subject to an estimated useful life of approximately three months. As of September 30, 2019, the management and advisory contracts were fully amortized. Goodwill In connection with the Self Administration Transaction, the Company recorded goodwill of $229.9 million as a result of the consideration exceeding the fair value of the net assets acquired. Goodwill represents the estimated future benefits arising from other assets acquired that could not be individually identified and separately recognized. The goodwill recorded represents the Company’s acquired workforce and its ability to generate additional opportunities for revenue and raise additional funds. Pro Forma Financial Information (unaudited) The following condensed pro forma operating information is presented as if the Self Administration Transaction occurred in 2018 and had been included in operations as of January 1, 2018. The pro forma operating information excludes certain nonrecurring adjustments, such as acquisition fees and expenses incurred, to reflect the pro forma impact the acquisition would have on earnings on a continuous basis: Year Ended Revenue $ 336,359 Net income $ 61,362 Net income attributable to noncontrolling interests $ 9,309 Net income attributable to common stockholders (1) $ 48,423 Net income attributable to common stockholders per share, basic and diluted $ 0.29 (1) Amount is net of net income (loss) attributable to noncontrolling interests, distributions to redeemable noncontrolling interests attributable to common stockholders and distributions to preferred shareholders.

Real Estate

Real Estate	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Real Estate [Abstract]
Real Estate	3. Real Estat e As of Depreciation expense for buildings and improvements for the nine months ended September 30, 2020 was $70.0 million. Amortization expense for intangibles, including, but not limited to, tenant origination and absorption costs for the nine months ended September 30, 2020 was $51.0 million. 2020 Acquisition The purchase price and other acquisition items for the property acquired during the nine months ended September 30, 2020 are shown below: Property Location Tenant/Major Acquisition Purchase Square Feet Acquisition Fees Year of Lease Pepsi Bottling Ventures North Carolina PepsiCo 2/5/2020 $ 34,937 526,320 $ 386 2032 Real Estate - Valuation and Purchase Price Allocation The Company allocates the purchase price to the relative fair value of the tangible assets of a property by valuing the property as if it were vacant. This “as-if “as-if In determining the fair value of intangible lease assets or liabilities, the Company also considers Level 3 inputs. Acquired above and below-market leases are valued based on the present value of the difference between prevailing market rates and the in-place in-place at-market The following table summarizes the purchase price allocation of the property acquired during the nine months ended September 30, 2020: Property Land Building Improvements Tenant In-place lease Debt discount / Total (1) Pepsi Bottling Ventures $ 3,407 $ 26,813 $ 954 $ 4,970 $ (712 ) $ (109 ) $ 35,323 (1) The allocations noted above are based on a determination of the relative fair value of the total consideration provided and represent the amount paid including capitalized acquisition costs. Intangibles The Company allocated a portion of the acquired and contributed real estate asset value to in-place write-off September 30, 2020 December 31, 2019 In-place $ 43,605 $ 44,012 In-place (35,024 ) (33,322 ) In-place $ 8,581 $ 10,690 Ground leasehold interest (below market) 2,254 2,254 Ground leasehold interest (below market) - accumulated amortization (184 ) (164 ) Ground leasehold interest (below market), net 2,070 2,090 Intangible assets, net $ 10,651 $ 12,780 In-place $ (68,334 ) $ (67,622 ) Land leasehold interest (above market) (3,073 ) (3,073 ) In-place 42,859 38,890 Intangible liabilities, net $ (28,548 ) $ (31,805 ) Tenant origination and absorption cost $ 745,039 $ 744,773 Tenant origination and absorption cost - accumulated amortization (399,005 ) (354,379 ) Tenant origination and absorption cost, net $ 346,034 $ 390,394 The following table sets forth the estimated annual amortization (income) expense for in-place Year In-place lease valuation, Tenant origination and Ground leasehold Other leasing costs Remaining 2020 $ (525 ) $ 14,870 $ (73 ) $ 1,372 2021 $ (2,118 ) $ 57,846 $ (290 ) $ 6,057 2022 $ (2,518 ) $ 54,744 $ (290 ) $ 6,063 2023 $ (2,465 ) $ 50,184 $ (290 ) $ 5,934 2024 $ (1,648 ) $ 38,006 $ (291 ) $ 5,700 2025 $ (1,186 ) $ 27,450 $ (290 ) $ 5,580 Sale of Property On June 30, 2020, the Company sold the Bank of America II property located at 1800 Tapo Canyon in Simi Valley, California for total proceeds of $24.5 million, less closing costs and other closing credits. The carrying value of the property on the closing date was approximately $19.6 million. Upon the sale of the property, the Company recognized a gain of approximately $4.3 million. Impairments 2200 Channahon Road, Houston Westway I and 2275 Cabot Drive During the nine months ended September 30, 2020, the Company recorded an impairment provision of approximately $22.2 million as it was determined that the carrying value of the real estate would not be recoverable on three properties. This impairment resulted from changes in longer absorption periods, lower market rents and shorter anticipated hold periods. In determining the fair value of property, the Company considered Level 3 inputs. See Note 8, Fair Value Measurements , Restricted Cash In conjunction with the acquisition of certain assets, as required by certain lease provisions or certain lenders in conjunction with an acquisition or debt financing, or credits received by the seller of certain assets, the Company assumed or funded reserves for specific property improvements and deferred maintenance, re-leasing Balance as of September 30, 2020 December 31, 2019 Cash reserves $ 22,909 $ 48,129 Restricted lockbox 12,922 10,301 Total $ 35,831 $ 58,430	4. Real Estate As of December 31, 2019, the Company’s real estate portfolio consisted of 99 properties in 25 states consisting substantially of office, warehouse, and manufacturing facilities and one land parcel held for future development with a combined acquisition value of approximately $4.2 billion, including the allocation of the purchase price to above and below-market lease valuation. Depreciation expense for buildings and improvements for the years ended December 31, 2019, 2018, and 2017 was $80.4 million, $60.1 million, and $56.0 million, respectively. Amortization expense for intangibles, including but not limited to, tenant origination and absorption costs for the years ended December 31, 2019, 2018, and 2017 was $73.0 million, $59.0 million, and $60.6 million, respectively. 2019 Acquisitions The purchase price and other acquisition items for the property acquired during the year ended December 31, 2019 are shown below: Property Location Tenant/Major Lessee Acquisition Purchase Approx. Acquisition (1) Year of McKesson II Scottsdale, AZ McKesson Corporation 9/20/2019 $ 37,674 124,900 $ 1,059 2029 (1) The former advisor received acquisition fees equal to 2.5%. In addition, the Company incurred third-party costs associated with the acquisition. Mergers The Mergers were accounted for as an asset acquisition under ASC 805, with EA-1 EA-1 EA-1 The assets (including identifiable intangible assets) and liabilities (including executory contracts and other commitments) of the Company as of the effective time of the Mergers were recorded at their respective relative fair values and added to those of EA-1. EA-1 Upon the effective time of the Mergers on April 30, 2019, each of EA-1’s EA-1’s As of April 30, 2019 GCEAR’s common shares outstanding 78,054,934 Exchange ratio 1.04807 Implied EA-1 74,474,924 GCEAR’s operating partnership units outstanding 527,045 Exchange ratio 1.04807 Implied EA-1 502,872 EA-1’s $ 10.02 Total consideration $ 751,278 The following table summarizes the final purchase price allocation based on a valuation report prepared by the Company’s third-party valuation specialist that was subject to management’s review and approval: As of April 30, 2019 Assets: Cash assumed $ 35,659 Land 135,875 Building and improvements 913,739 Tenant origination and absorption cost 214,428 Intangibles 3,627 Construction in progress 263 Other assets 5,964 Total assets 1,309,555 Liabilities: Debt (net of $1.1 million premium) 498,906 Below market leases 12,476 Due to Affiliates 8,804 Distribution payable 1,854 Restricted reserves 11,050 Accounts payable and other liabilities 14,849 Total liabilities 547,939 Fair value of net assets acquired 761,616 Less: EA-1’s 10,338 Fair value of net assets acquired, less EA-1’s $ 751,278 Merger-Related Expenses In connection with the Mergers, the Company incurred various transaction and administrative costs. These costs included advisory fees, legal, tax, accounting, valuation fees, and other costs. These costs were capitalized as a component of the cost of the assets acquired. The costs that were obligations of GCEAR and expensed prior to the Mergers are not included in the Company’s consolidated statements of operations. The following is a breakdown of the Company’s costs incurred during the year ended December 31, 2019 related to the Mergers: Amount Advisory and valuation fees $ 8,592 Legal, accounting and tax fees 1,384 Other fees 362 Total Merger-related fees $ 10,338 Real Estate — Valuation and Purchase Price Allocation The Company allocates the purchase price to the relative fair value of the tangible assets of a property by valuing the property as if it were vacant. This “as-if “as-if In determining the fair value of intangible lease assets or liabilities, the Company also considers Level 3 inputs. Acquired above and below-market leases are valued based on the present value of the difference between prevailing market rates and the in-place in-place at-market The following summarizes the purchase price allocations of the properties acquired during the year ended December 31, 2019: Acquisition Land Building Improvements Tenant In-place In-place Land Total (1) 2019 (2) Mergers $ 135,875 $ 850,811 $ 62,928 $ 214,428 $ 3,627 $ (12,476 ) $ — $ 1,255,193 $ 66,004 McKesson II (3) $ — $ 25,446 $ 4,681 $ 11,513 $ 239 $ — $ (3,072 ) $ 38,807 $ 958 (1) The allocations noted above are based on a determination of the relative fair value of the total consideration provided and represent the amount paid including capitalized acquisition costs. (2) The operating results of the properties acquired have been included in the Company’s consolidated statement of operations since the acquisition date. (3) The Company recorded a ROU asset of $16.3 million and a corresponding liability to the Company’s existing ground lease agreements as part of the acquisition (see Note 14, Operating Leases, for details Intangibles The Company allocated a portion of the acquired and contributed real estate asset value to in-place write-off The following summarizes a list of the Company’s intangibles as of December 31, 2019 and 2018: December 31, 2019 2018 In-place $ 44,012 $ 42,736 In-place (33,322 ) (31,995 ) In-place 10,690 10,741 Ground leasehold interest (below market) 2,254 2,255 Ground leasehold interest (below market) — accumulated amortization (164 ) (137 ) Ground leasehold interest (below market), net 2,090 2,118 Intangibles — other — 4,240 Intangible assets, net $ 12,780 $ 17,099 In-place $ (67,622 ) $ (55,147 ) Land Leasehold interest (above market) (3,073 ) — In-place 38,890 32,032 Intangible liabilities, net $ (31,805 ) $ (23,115 ) Tenant origination and absorption cost $ 744,773 $ 530,181 Tenant origination and absorption cost — accumulated amortization (354,379 ) (296,201 ) Tenant origination and absorption cost, net $ 390,394 $ 233,980 The intangible assets are amortized over the remaining lease term of each property, which on a weighted-average basis, was approximately 7.36 years and 6.6 years as of December 31, 2019 and 2018, respectively. The amortization of the intangible assets and other leasing costs for the respective periods is as follows: Amortization (income) 2019 2018 2017 Above and below market leases, net $ (3,201 ) $ (685 ) $ 1,689 Tenant origination and absorption cost $ 69,502 $ 55,464 $ 59,046 Ground leasehold amortization (below market) $ (52 ) $ 27 $ 27 Other leasing costs amortization $ 3,581 $ 3,557 $ 1,527 The following table sets forth the estimated annual amortization (income) expense for in-place Year In-place lease valuation, net Tenant origination and Ground leasehold Other leasing costs 2020 $ (2,150 ) $ 64,739 $ (291 ) $ 4,911 2021 $ (2,066 ) $ 57,151 $ (290 ) $ 5,668 2022 $ (2,467 ) $ 54,050 $ (290 ) $ 5,673 2023 $ (2,415 ) $ 49,246 $ (290 ) $ 5,571 2024 $ (1,593 ) $ 41,479 $ (291 ) $ 5,533 Tenant and Portfolio Risk The Company monitors the credit of all tenants to stay abreast of any material changes in credit quality. The Company monitors tenant credit by (1) reviewing the credit ratings of tenants (or their parent companies) that are rated by nationally recognized rating agencies; (2) reviewing financial statements and related metrics and information that are publicly available or required to be provided pursuant to the lease; (3) monitoring news reports and press releases regarding the tenants and their underlying business and industry; and (4) monitoring the timeliness of rent collections. Restricted Cash In conjunction with the acquisition of certain assets, as required by certain lease provisions or certain lenders in conjunction with an acquisition or debt financing, or credits received by the seller of certain assets, the Company assumed or funded reserves for specific property improvements and deferred maintenance, re-leasing December 31, 2019 2018 Cash reserves (1) $ 48,129 $ 12,945 Restricted Lockbox 10,301 2,862 Total $ 58,430 $ 15,807 (1) Approximately $28.7 million is held in escrow pending a tax-deferred Sale of Properties Lynnwood Land On July 30, 2019, the Company sold the Lynnwood IV land parcel located in Lynnwood, WA for total proceeds of $1.8 million, less closing costs and other closing credits. The carrying value of the land parcel was approximately $1.3 million. Upon the sale, the Company recognized a gain of approximately $0.3 million. 7601 Technology Way On September 5, 2019, the Company sold the 7601 Technology Way property located in Denver, Colorado for total proceeds of $48.8 million, less closing costs and other closing credits. The carrying value of the property on the closing date was approximately $37.6 million. Upon the sale of the property, the Company recognized a gain of approximately $8.1 million. 10 Commerce Center Parkway On October 14, 2019, the Company sold the FedEx Freight property located in West Jefferson, Ohio for total proceeds of $30.3 million, less closing costs and other closing credits. The property sold for an approximate amount equal to the carrying value. 2160 East Grand Avenue On November 20, 2019, the Company sold the 2160 East Grand Avenue property located in El Segundo, California for total proceeds of $63.5 million, less closing costs and other closing credits. The carrying value of the property on the closing date was approximately $41.5 million. Upon the sale of the property, the Company recognized a gain of approximately $21.5 million. Impairments 2200 Channahon Road & Houston Way I During the year ended December 31, 2019, the Company recorded an impairment provision of approximately $30.7 million as it was determined that the carrying value of the real estate would not be recoverable on two properties. This impairment resulted from changes in projected cash flows the property was expected to generate. In determining the fair value of property, the Company considered Level 3 inputs. See Note 9, Fair Value Measuremen

Investments

Investments	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Equity Method Investments and Joint Ventures [Abstract]
Investments	4. Investments in Unconsolidated Entities Heritage Commons X, LTD In June 2018, the Company, through an SPE, wholly owned by the Current Operating Partnership, formed a joint venture (the “Heritage Commons X”) for the construction and ownership of a four-story, Class “A” office building with a net rentable area of approximately 200,000 square feet located in Fort Worth, Texas (the “Heritage Commons Property”). The Heritage Commons Property was completed in April 2019 and is 100% leased to Mercedes-Benz On July 17, 2019, Heritage Commons X sold the Heritage Commons Property. Digital Realty Trust, Inc. In September 2014, the Company, through an SPE, wholly owned by the Current Operating Partnership, acquired an 80% interest in a joint venture with an affiliate of Digital Realty Trust, Inc. (“Digital”) for $68.4 million, which was funded with equity proceeds raised in the Company’s public offerings. The gross acquisition value of the property was $187.5 million, plus closing costs, which was partially financed with debt of $102.0 million. The joint venture was created for purposes of directly or indirectly acquiring, owning, financing, operating and maintaining a data center facility located in Ashburn, Virginia (the “Property”). The Property is approximately 132,300 square feet and consists of certain data processing and communications equipment that is fully leased to a social media company and a financial services company with an average remaining lease term of approximately 3.5 years. The interests discussed above are deemed to be variable interests in variable interest entities (“VIE”) and based on an evaluation of the variable interests against the criteria for consolidation, the Company determined that it is not the primary beneficiary of the investments, as the Company does not have power to direct the activities of the entities that most significantly affect their performance. As such, the interest in the VIEs is recorded using the equity method of accounting in the accompanying consolidated financial statements. Under the equity method, the investments in the unconsolidated entities are stated at cost and adjusted for the Company’s share of net earnings or losses and reduced by distributions. Equity in earnings of real estate ventures is generally recognized based on the allocation of cash distributions upon liquidation of the investment at book value in accordance with the operating agreements. The Company’s maximum exposure to losses associated with its unconsolidated investments is primarily limited to its carrying value in the investments. In September 2014, the joint venture entered into a secured term loan (the “Loan”) in the amount of approximately $102.0 million. The Loan had an original maturity date of September 9, 2019 and included two extension options of 12 additional months each beyond the original maturity date. On March 29, 2019, the joint venture executed the first 12-month Since the joint venture could not execute a long term extension with the current tenant or sign a new lease, discussions with the lender did not result in a loan additional extension in 2020. As a result, on September 9, 2020, the lender provided a notice of default for non-payment stand-by stand-by In accordance with the terms of the Digital operating agreement, the Company holds a guaranteed minimum return such that the Digital managing member will pay an amount to the Company in order for the Company to receive a minimum 7% return on investment, subject to a cap on actual cash amounts distributed to the managing member. As part of the wind up of the joint venture, the Company has recorded a receivable from the Digital managing member of $4.1 million that it expects to receive in first quarter of 2021 and has written off its remaining investment in the venture. The Company is not exposed to any future funding obligations and there are no other future losses expected to arise from this investment. As of September 30, 2020, the balance of the investments are shown below: Digital Realty Heritage Total Balance as of December 31, 2019 $ 10,584 $ 444 $ 11,028 Net loss (165 ) — (165 ) Distributions (8,120 ) (410 ) (8,530 ) Contributions 8,160 — 8,160 Valuation adjustment (1) (4,452 ) — (4,452 ) Impairment (1,907 ) — (1,907 ) Clawback receivable reclass (2) (4,100 ) — (4,100 ) Balance as of September 30, 2020 $ — $ 34 $ 34 (1) Amount represents a charge to arrive at the net realizable value as of September 30, 2020, which is included in the line item “(Loss) Gain from investment in unconsolidated entities” in the consolidated statement of operations. (2) Amount represents a reclass of the clawback to other assets as disclosed above.	5. Investments Investment in Unconsolidated Entities Heritage Commons X, LTD In June 2018, the Company, through an a SPE, wholly-owned by the Current Operating Partnership, formed a joint venture (the “Heritage Common X”) for the construction and ownership of a four-story Class “A” office building with a net rentable area of approximately 200,000 square feet located in Fort Worth, Texas (the “Heritage Commons Property”). The Heritage Commons Property was completed in April 2019 and is 100% leased to Mercedes-Benz On July 17, 2019, the Heritage Common X Ltd. sold the Heritage Trace Parkway property located in Fort Worth, TX. The net cash to the Company from the sale was approximately $8.2 million after repayment of approximately $41.4 million of debt, along with closing costs, credits, and distributions to its joint venture partners in accordance with the provisions of the governing documents. Upon the sale, the Company recognized an equity in earnings of approximately $4.1 million, net of estimated taxes of $0.6 million. At the time of the sale, the Company had an ownership interest of approximately 45% in the joint venture. The remaining balance as of December 31, 2019 represents approximately $0.4 million of escrow holdback deposit. Digital Realty Trust, Inc. In September 2014, the Company, through an SPE wholly-owned by the Current Operating Partnership, acquired an 80% interest in a joint venture with an affiliate of Digital Realty Trust, Inc. for $68.4 million, which was funded with equity proceeds raised in the Company’s public offerings. The gross acquisition value of the property was $187.5 million, plus closing costs, which was partially financed with debt of $102.0 million. The joint venture was created for purposes of directly or indirectly acquiring, owning, financing, operating and maintaining a data center facility located in Ashburn, Virginia (the “Property”). The Property is approximately 132,300 square feet and consists of certain data processing and communications equipment that is fully leased to a social media company and a financial services company with an average remaining lease term of approximately three years. The joint venture used an interest rate swap to manage its interest rate risk associated with its variable rate debt, which expired in September 2019. The interest rate swap was designated as an interest rate hedge of its exposure to the volatility associated with interest rates. As a result of the hedge designation and in satisfying the requirement for cash flow hedge accounting, the joint venture recorded changes in the fair value in accumulated other comprehensive income. In conjunction with the investment in the joint venture discussed above, the Company recognized its 80% share, or approximately $0.2 million of other comprehensive loss for the year ended December 31, 2019. The interests discussed above are deemed to be variable interests in variable interest entities (“VIE”) and, based on an evaluation of the variable interests against the criteria for consolidation, the Company determined that it is not the primary beneficiary of the investments, as the Company does not have power to direct the activities of the entities that most significantly affect their performance. As such, the interest in the VIEs are recorded using the equity method of accounting in the accompanying consolidated financial statements. Under the equity method, the investments in the unconsolidated entities are stated at cost and adjusted for the Company’s share of net earnings or losses and reduced by distributions. Equity in earnings of real estate ventures is generally recognized based on the allocation of cash distributions upon liquidation of the investment at book value in accordance with the operating agreements. The Company’s maximum exposure to losses associated with its unconsolidated investments is primarily limited to its carrying value in the investments. Impairment During the year ended December 31, 2019, the Company recognized an other-than-temporary impairment loss on its investments in the unconsolidated Digital Realty Trust, Inc. joint venture. The impairment loss is a result of revised market rental rate expectations and tenant rents. The impairment loss is included in “(Loss) gain from investment in unconsolidated entities” on the Company’s consolidated statements of operations. In determining the fair value of property, the Company considered Level 3 inputs. See Note 9, Fair Value Measuremen As of December 31, 2019, the balance of the investments are shown below: Digital Realty Heritage Total Balance as of December 31, 2018 $ 27,291 $ 3,274 $ 30,565 Net (loss) income (2,509 ) 4,128 (1) 1,619 Distributions (7,055 ) (6,958 ) (14,013 ) Other comprehensive loss (217 ) — (217 ) Impairment (6,926 ) — (6,926 ) Balance as of December 31, 2019 $ 10,584 $ 444 $ 11,028 (1) Includes approximately $0.6 million in disposition and other fees owed to the Company’s former advisor. In addition, approximately $1.2 million of third party fees and taxes were incurred as part of the outside basis of the investment

Debt

Debt	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Debt Disclosure [Abstract]
Debt	5. Debt As of September 30, 2020 and December 31, 2019, the Company’s debt consisted of the following: September 30, December 31, Contractual Interest Rate (1) Loan Effective (2) HealthSpring Mortgage Loan $ 20,340 $ 20,723 4.18% April 2023 4.62 % Midland Mortgage Loan 98,687 100,249 3.94% April 2023 4.12 % Emporia Partners Mortgage Loan 1,749 2,104 5.88% September 2023 5.97 % Samsonite Loan 20,418 21,154 6.08% September 2023 5.10 % Highway 94 Loan 14,922 15,610 3.75% August 2024 4.78 % Pepsi Bottling Ventures Loan 18,677 — 3.69% October 2024 3.92 % AIG Loan II 126,970 126,970 4.15% November 2025 4.93 % BOA Loan 375,000 375,000 3.77% October 2027 3.91 % BOA/KeyBank Loan 250,000 250,000 4.32% May 2028 4.14 % AIG Loan 104,352 105,762 4.96% February 2029 5.08 % Total Mortgage Debt 1,031,115 1,017,572 Revolving Credit Facility (3) 401,500 211,500 LIBO Rate + 1.60% June 2023 1.88 % 2023 Term Loan 200,000 200,000 LIBO Rate + 1.55% June 2023 1.80 % 2024 Term Loan 400,000 400,000 LIBO Rate + 1.55% April 2024 1.79 % 2026 Term Loan 150,000 150,000 LIBO Rate + 1.85% April 2026 2.06 % Total Debt 2,182,615 1,979,072 Unamortized Deferred Financing Costs and Discounts, net (8,263 ) (9,968 ) Total Debt, net $ 2,174,352 $ 1,969,104 (1) Including the effect of the interest rate swap agreements with a total notional amount of $750.0 million, the weighted average interest rate as of September 30, 2020 was 3.56% for both the Company’s fixed-rate and variable-rate debt combined and 3.96% for the Company’s fixed-rate debt only. (2) Reflects the effective interest rate as of September 30, 2020 and includes the effect of amortization of discounts/premiums and deferred financing costs. (3) The LIBO rate as of September 1, 2020 (effective date) was 0.16 two years one-year Second Amended and Restated Credit Agreement On April 30, 2019, the Company, through the Current Operating Partnership, entered into that certain second amended and restated credit agreement (the “Second Amended and Restated Credit Agreement”) related to a revolving credit facility (the “Revolving Credit Facility”) and three term loans described below (the “Term Loans” and collectively with the Revolving Credit Facility, the “KeyBank Loans”) with a syndicate of lenders, under which KeyBank National Association (“KeyBank”) serves as administrative agent. The KeyBank Loans have an interest rate calculated based on London Interbank Offered Rate (LIBOR) plus the applicable LIBOR margin, as provided in the Second Amended and Restated Credit Agreement, or the Base Rate plus the applicable base rate margin, as provided in the agreement. The applicable LIBOR margin and base rate margin are dependent on the consolidated leverage ratio of the Current Operating Partnership, the Company, and the Company’s subsidiaries, as disclosed in the periodic compliance certificate provided to our administrative agent each quarter. If the Current Operating Partnership obtains an investment grade rating of its senior unsecured long term debt from Standard & Poor’s Rating Services, Moody’s Investors Service, Inc., or Fitch, Inc., the applicable LIBOR margin and base rate margin will be dependent on such rating. The Second Amended and Restated Credit Agreement relating to the Revolving Credit Facility provides that the Current Operating Partnership must maintain a pool of unencumbered real properties (each a “Pool Property” and collectively the “Pool Properties”) that meet certain requirements contained in the Second Amended and Restated Credit Agreement. The agreement sets forth certain covenants relating to the Pool Properties, including, without limitation, the following: • there must be no less than 15 Pool Properties at any time; • no greater than 15% of the aggregate pool value may be contributed by a single Pool Property or tenant; • no greater than 15% of the aggregate pool value may be contributed by Pool Properties subject to ground leases; • no greater than 20% of the aggregate pool value may be contributed by Pool Properties which are under development or assets under renovation; • the minimum aggregate leasing percentage of all Pool Properties must be no less than 90%; and • other limitations as determined by KeyBank upon further due diligence of the Pool Properties. Borrowing availability under the Second Amended and Restated Credit Agreement is limited to the lesser of (i) an unsecured leverage ratio of no greater than 60%, or (ii) an unsecured interest coverage ratio of no less than 2.00:1.00. Guarantors of the KeyBank Loans include the Company, each special purpose entity that owns a Pool Property, and each of the Current Operating Partnership other subsidiaries which owns a direct or indirect equity interest in a special purpose entity that owns a Pool Property. In addition to customary representations, warranties, covenants, and indemnities, the KeyBank Loans require the Current Operating Partnership to comply with the following at all times, which will be tested on a quarterly basis: • a maximum consolidated leverage ratio of 60%, or, the ratio may increase to 65% for up to four consecutive quarters after a material acquisition; • a minimum consolidated tangible net worth of 75% of the Company’s consolidated tangible net worth at closing of the Revolving Credit Facility, or approximately $2.0 billion, plus 75% of net future equity issuances (including OP Units in the Current Operating Partnership), minus 75% of the amount of any payments used to redeem the Company’s stock or the OP Units in the Current Operating Partnership, minus any amounts paid for the redemption or retirement of or any accrued return on the preferred equity issued under the preferred equity investment made in EA-1 • upon consummation, if ever, of an initial public offering, a minimum consolidated tangible net worth of 75% of the Company’s consolidated tangible net worth plus 75% of net future equity issuances (including OP Units in the Current Operating Partnership) should the Company publicly list its shares; • a minimum consolidated fixed charge coverage ratio of not less than 1.50:1.00; • a maximum total secured debt ratio of not greater than 40%, which ratio will increase by five percentage points for four quarters after closing of a material acquisition that is financed with secured debt; • a minimum unsecured interest coverage ratio of 2.00:1.00; • a maximum total secured recourse debt ratio, excluding recourse obligations associated with interest rate hedges, of 10% of our total asset value; • aggregate maximum unhedged variable rate debt of not greater than 30% of the Company’s total asset value; and • a maximum payout ratio of not greater than 95% commencing for the quarter ended September 30, 2019. Furthermore, the activities of the Current Operating Partnership, the Company, and the Company’s subsidiaries must be focused principally on the acquisition, operation, and maintenance of income-producing office and industrial real estate properties. The Second Amended and Restated Credit Agreement contains certain restrictions with respect to the investment activities of the Current Operating Partnership, including, without limitation, the following: (i) unimproved land may not exceed 5% of total asset value; (ii) developments that are pre-leased Subsequent Events Pepsi Bottling Ventures Mortgage Loan On February 5, 2020, as part of the acquisition of the Pepsi Bottling Ventures (“PBV”) property, the Company assumed a $18.9 million mortgage loan (“PBV Mortgage Loan”) from State Farm Life Insurance Company, as participating holder of the note. The PBV Mortgage Loan matures on October 1, 2024, has a fixed interest rate of 3.69%, and requires monthly payments of principal and interest. The PBV Mortgage Loan is secured by a deed of trust on the PBV property. Debt Covenant Compliance Pursuant to the terms of the Company’s mortgage loans and the KeyBank Loans, the Current Operating Partnership, in consolidation with the Company, is subject to certain loan compliance covenants. The Company was in compliance with all of its debt covenants as of September 30, 2020.	6. Debt As of December 31, 2019 and December 31, 2018, the Company’s debt consisted of the following: December 31, Contractual Interest Rate (1) Loan Effective (2) 2019 2018 HealthSpring Mortgage Loan $ 20,723 $ 21,219 4.18 % April 2023 4.61 % Midland Mortgage Loan 100,249 102,262 3.94 % April 2023 4.10 % Emporia Partners Mortgage Loan 2,104 2,554 5.88 % September 2023 5.98 % Samsonite 21,154 22,085 6.08 % September 2023 5.14 % Highway 94 loan 15,610 16,497 3.75 % August 2024 4.73 % AIG Loan II 126,970 — 4.15 % November 2025 4.91 % BOA Loan 375,000 375,000 3.77 % October 2027 3.92 % BOA/KeyBank Loan 250,000 — 4.32 % May 2028 4.16 % AIG Loan 105,762 107,562 4.96 % February 2029 5.08 % Total Mortgage Debt 1,017,572 647,179 2023 Term Loan 200,000 — LIBO Rate +1.40 % June 2023 3.28 % 2024 Term Loan 400,000 — LIBO Rate +1.40 % April 2024 3.27 % 2026 Term Loan 150,000 — LIBO Rate +1.75 % April 2026 3.59 % Revolving Credit Facility (4) 211,500 — LIBO Rate +1.45 % June 2023 (4) 3.35 % Term Loan — 715,000 (3) — — — Total Debt 1,979,072 1,362,179 Unamortized Deferred Financing Costs and Discounts, net (9,968 ) (8,648 ) Total Debt, net $ 1,969,104 $ 1,353,531 (1) Including the effect of one interest rate swap agreement with a total notional amount of $425.0 million, the weighted average interest rate as of December 31, 2019 was 3.72% for both the Company’s fixed-rate and variable-rate debt combined and 3.89% for the Company’s fixed-rate debt only. (2) Reflects the effective interest rate as of December 31, 2019 and includes the effect of amortization of discounts/premiums and deferred financing costs. (3) Represents the Company’s Term Loan (defined below), which was fully repaid on May 1, 2019. See discussion below. (4) The LIBO rate as of December 31, 2019 was 1.69%. The Revolving Credit Facility has an initial term of approximately three years, maturing on June 28, 2022, and may be extended for a one-year Unsecured Credit Facility On July 20, 2015, EA-1, co-led EA-1 Second Amended and Restated Credit Agreement On April 30, 2019, the Company, through the Current Operating Partnership (the “KeyBank Borrower”), entered into that certain second amended and restated credit agreement (the “Second Amended and Restated Credit Agreement”) related to a revolving credit facility and three term loans described below (the “Term Loans” and collectively with the revolving credit facility, the “KeyBank Loans”) with a syndicate of lenders, under which KeyBank serves as administrative agent. Pursuant to the Second Amended and Restated Credit Agreement, the Company was provided with a revolving credit facility (the “Revolving Credit Facility”) in an initial commitment amount of $750.0 million (the “Revolving Commitment”), a five-year term loan (the “2023 Term Loan”) in an initial commitment amount of $200.0 million (the “2023 Term Commitment”), a five-year term loan (the “2024 Term Loan”) in an initial commitment amount of $400.0 million (the “2024 Term Commitment”), and a seven-year term loan (the “2026 Term Loan”) in an initial commitment amount of $150.0 million (the “2026 Term Commitment”), which commitments may be increased under certain circumstances up to a maximum total commitment of $2.0 billion. Any increase in the total commitment will be allocated to the Revolving Credit Facility and/or the Term Loans in such amounts as the KeyBank Borrower and KeyBank may determine. The KeyBank Loans are evidenced by promissory notes that are substantially similar related to each lender and the amount committed by such lender. Increases in the commitment amount must be made in amounts of not less than $25.0 million, and increases of $25.0 million in increments in excess thereof, provided that such increases do not exceed the maximum total commitment amount of $2.0 billion. The KeyBank Borrower may also reduce the amount of the Revolving Commitment in increments of $50.0 million, provided that at no time will the Revolving Credit Facility be less than $150.0 million, and such a reduction will preclude the KeyBank Borrower’s ability to later increase the commitment amount. The Revolving Credit Facility may be prepaid and terminated, in whole or in part, at any time without fees or penalty. The Revolving Credit Facility also provides for same day swingline advances to be provided by KeyBank, Bank of America, N.A., and Wells Fargo Bank, N.A., on a pro rata basis, up to $125.0 million in the aggregate. Such swingline advances will reduce dollar for dollar the availability under the Revolving Credit Facility, and must be repaid within 10 business days. The Revolving Credit Facility has an initial term of approximately three years, maturing on June 28, 2022. The Revolving Credit Facility may be extended for a one-year The 2023 Term Loan has an initial term of approximately four years, maturing on June 28, 2023. Payments under the 2023 Term Loan are interest only and are due on the first day of each quarter. Amounts borrowed under the 2023 Term Loan may not be repaid and reborrowed. The 2024 Term Loan has an initial term of five years, maturing on April 30, 2024. Payments under the 2024 Term Loan are interest only and are due on the first day of each quarter. Amounts borrowed under the 2024 Term Loan may not be repaid and reborrowed. The 2026 Term Loan has an initial term of seven years, maturing on April 30, 2026. Payments under the 2026 Term Loan are interest only and are due on the first day of each quarter. Amounts borrowed under the 2026 Term Loan may not be repaid and reborrowed. The KeyBank Loans have an interest rate calculated based on LIBOR plus the applicable LIBOR margin, as provided in the Second Amended and Restated Credit Agreement, or the Base Rate plus the applicable base rate margin, as provided in the agreement. The applicable LIBOR margin and base rate margin are dependent on the consolidated leverage ratio of the KeyBank Borrower, the Company, and the Company’s subsidiaries, as disclosed in the periodic compliance certificate provided to our administrative agent each quarter. If the KeyBank Borrower obtains an investment grade rating of its senior unsecured long term debt from Standard & Poor’s Rating Services, Moody’s Investors Service, Inc., or Fitch, Inc., the applicable LIBOR margin and base rate margin will be dependent on such rating. The Second Amended and Restated Credit Agreement relating to the Revolving Credit Facility provides that the KeyBank Borrower must maintain a pool of unencumbered real properties (each a “Pool Property” and collectively the “Pool Properties”) that meet certain requirements contained in the Second Amended and Restated Credit Agreement. The agreement sets forth certain covenants relating to the Pool Properties, including, without limitation, the following: • there must be no less than 15 Pool Properties at any time; • no greater than 15% of the aggregate pool value may be contributed by a single Pool Property or tenant; • no greater than 15% of the aggregate pool value may be contributed by Pool Properties subject to ground leases; • no greater than 20% of the aggregate pool value may be contributed by Pool Properties which are under development or assets under renovation; • the minimum aggregate leasing percentage of all Pool Properties must be no less than 90%; and • other limitations as determined by KeyBank upon further due diligence of the Pool Properties. Borrowing availability under the Second Amended and Restated Credit Agreement is limited to the lesser of (i) an unsecured leverage ratio of no greater than 60%, or (ii) an unsecured interest coverage ratio of no less than 2.00:1.00. In connection with the KeyBank Loans, the KeyBank Borrower paid closing costs, including arrangement fees, commitment fees and legal fees, of approximately $5.7 million. The KeyBank Borrower will pay KeyBank an administrative agent fee of $25,000 per year. In addition, an unused fee will be payable quarterly which is calculated based on the amount of the unused revolving loan commitments and is equal to 15 basis points if 50% or more of the loan commitments are used or 20 basis points if less than 50% of the loan commitments are used. At the time that the applicable LIBOR margin and base rate margin are determined in accordance with the Borrower’s investment grade rating as provided above, the KeyBank Borrower will pay a quarterly facility fee at a rate that is dependent on such rating and is based upon the total commitments. Guarantors of the KeyBank Loans include us, each special purpose entity that owns a Pool Property, and each of the KeyBank Borrower’s other subsidiaries which owns a direct or indirect equity interest in a special purpose entity that owns a Pool Property. In addition to customary representations, warranties, covenants, and indemnities, the KeyBank Loans require the KeyBank Borrower to comply with the following at all times, which will be tested on a quarterly basis: • a maximum consolidated leverage ratio of 60%, or, the ratio may increase to 65% for up to four consecutive quarters after a material acquisition; • a minimum consolidated tangible net worth of 75% of the Company’s consolidated tangible net worth at closing of the Revolving Credit Facility, or approximately $2.0 billion, plus 75% of net future equity issuances (including units of the operating partnership interests in the KeyBank Borrower), minus 75% of the amount of any payments used to redeem the Company’s stock or the KeyBank Borrower’s stock or the Company’s operating partnership units, minus any amounts paid for the redemption or retirement of or any accrued return on the preferred equity issued under the preferred equity investment made in EA-1’s • upon consummation, if ever, of an initial public offering, a minimum consolidated tangible net worth of 75% of the Company’s consolidated tangible net worth plus 75% of net future equity issuances (including units of operating partnership interests in the KeyBank Borrower) should we publicly list on the New York Stock Exchange; • a minimum consolidated fixed charge coverage ratio of not less than 1.50:1.00; • a maximum total secured debt ratio of not greater than 40%, which ratio will increase by five percentage points for four quarters after closing of a material acquisition that is financed with secured debt; • a minimum unsecured interest coverage ratio of 2.00:1.00; • a maximum total secured recourse debt ratio, excluding recourse obligations associated with interest rate hedges, of 10% of our total asset value; • aggregate maximum unhedged variable rate debt of not greater than 30% of the Company’s total asset value; and • a maximum payout ratio of not greater than 95% commencing for the quarter ended September 30, 2019. Furthermore, the activities of the KeyBank Borrower, the Company, and the Company’s subsidiaries must be focused principally on the acquisition, operation, and maintenance of income-producing office and industrial real estate properties. The Second Amended and Restated Credit Agreement contains certain restrictions with respect to the investment activities of the KeyBank Borrower, including, without limitation, the following: (i) unimproved land may not exceed 5% of total asset value; (ii) developments that are pre-leased Bank of America and KeyBank Loan On April 30, 2019, upon consummation of the Mergers, the Company assumed GCEAR’s obligations as carve-out non-recourse carve-out The BofA/KeyBank Loan is secured by cross-collateralized and cross-defaulted first mortgage liens on the properties with the following tenants: 3M Company, Amazon.com.dedc LLC, Southern Company Services, Inc. and IGT (each, a “Secured Property”). The BofA/KeyBank Loan has a term of 10 years, maturing on May 1, 2028. The BofA/KeyBank Loan bears interest at an annual rate of 4.32%. Commencing on June 1, 2020, the BofA/KeyBank Loan may be prepaid but only if such prepayment is made in full (with certain exceptions), subject to certain conditions set forth in the Loan Agreement, including 30 days’ prior notice to the Lender and payment of a prepayment premium in addition to all unpaid principal and accrued interest to the date of such prepayment. Commencing on November 1, 2027, the BofA/KeyBank Loan may be prepaid in whole or in part, subject to satisfaction of certain conditions, including 30 days’ prior notice to the Lender, without payment of any prepayment premium. As of December 31, 2019, there was approximately $250.0 million outstanding pursuant to the BofA/KeyBank Loan. AIG Loan II On April 30, 2019, upon consummation of the Mergers, the Company assumed GCEAR’s obligation, which was originally executed in connection with a loan dated October 22, 2015, between six SPEs that were wholly owned by the GCEAR II Operating Partnership as the borrowers and The Variable Annuity Life Insurance Company, American General Life Insurance Company, and the United States Life Insurance Company (collectively, the “Lenders”), pursuant to which the Lenders provided such SPEs with a loan in the aggregate amount of approximately $127.0 million (the “AIG Loan II”). The AIG Loan II has a term of 10 years, maturing on November 1, 2025. The AIG Loan II bears interest at a rate of 4.15%. The AIG Loan II requires monthly payments of interest only for the first five years and fixed monthly payments of principal and interest thereafter. The AIG Loan II is secured by cross-collateralized and cross-defaulted first lien deeds of trust and second lien deeds of trust on certain properties. Each of the individual promissory notes comprising the AIG Loan II may be prepaid but only if such prepayment is made in full, subject to 30 days’ prior notice to the holder and payment of a prepayment premium in addition to all unpaid principal and accrued interest to the date of such prepayment. As of December 31, 2019, there was approximately $127.0 million outstanding pursuant to the AIG Loan. Term Loan On July 20, 2015, the Company, through the EA-1 co-led Debt Covenant Compliance Pursuant to the terms of the Company’s mortgage loans and the KeyBank Loans, the Current Operating Partnership, in consolidation with the Company, is subject to certain loan compliance covenants. The Company was in compliance with all of its debt covenants as of December 31, 2019. The following summarizes the future principal repayments of all loans as As of December 31, 2019 2020 $ 6,882 2021 9,390 2022 9,826 2023 337,019 2024 439,302 Thereafter 1,176,653 Total principal 1,979,072 Unamortized debt premium/(discount) (1,099 ) Unamortized deferred loan costs (8,869 ) Total $ 1,969,104

Interest Rate Contracts

Interest Rate Contracts	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Interest Rate Contracts	6. Interest Rate Contracts Risk Management Objective of Using Derivatives The Company is exposed to certain risks arising from both business operations and economic conditions. The Company manages economic risks, including interest rate, liquidity, and credit risk primarily by managing the amount, sources, and duration of debt funding and the use of derivative financial instruments. Specifically, the Company enters into derivative financial instruments to manage exposures that arise from business activities that result in the payment of future known and uncertain cash amounts, the values of which are determined by expected cash payments principally related to borrowings and interest rates. Interest rate swaps designated as cash flow hedges involve the receipt of variable amounts from a counterparty in exchange for making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount. The Company does not use derivatives for trading or speculative purposes. Derivative Instruments On July 9, 2015, the Company executed one interest rate swap agreement to hedge the variable cash flows associated with LIBOR. The interest rate swap was effective for the period from July 9, 2015 to July 1, 2020 with a notional amount of $425.0 million, which matured during the third quarter of 2020. On August 31, 2018, the Company executed four interest rate swap agreements to hedge future variable cash flows associated with LIBOR. The forward-starting interest rate swaps with a total notional amount of $425.0 million became effective on July 1, 2020 and have a term of five years. On March 10, 2020, the Company entered into three interest rate swap agreements to hedge variable cash flows associated with LIBOR. The swap agreements became effective on March 10, 2020, and have a term of approximately five years with notional amounts of $150.0 million, $100.0 million and $75.0 million. The Company also has entered into interest rate swap agreements to hedge the variable cash flows associated with certain existing or forecasted LIBOR based variable-rate debt, including the Company’s KeyBank Loans. The change in the fair value of derivatives designated and qualifying as cash flow hedges is initially recorded in accumulated other comprehensive income (“AOCI”) and is subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. Amounts reported in AOCI related to derivatives will be reclassified to interest expense as interest payments are made on the Company’s variable-rate debt. The following table sets forth a summary of the interest rate swaps at September 30, 2020 and December 31, 2019: Effective Maturity Interest Fair Value (1) Current Notional Amounts Derivative Instrument September 30, December 31, September 30, December 31, Liabilities: Interest Rate Swap 3/10/2020 7/1/2025 0.83 % $ (3,374 ) $ — $ 150,000 $ — Interest Rate Swap 3/10/2020 7/1/2025 0.84 % (2,300 ) — 100,000 — Interest Rate Swap 3/10/2020 7/1/2025 0.86 % (1,791 ) — 75,000 — Interest Rate Swap 7/1/2020 7/1/2025 2.82 % (15,064 ) (7,038 ) 125,000 125,000 Interest Rate Swap 7/1/2020 7/1/2025 2.82 % (12,074 ) (5,651 ) 100,000 100,000 Interest Rate Swap 7/1/2020 7/1/2025 2.83 % (12,084 ) (5,665 ) 100,000 100,000 Interest Rate Swap 7/1/2020 7/1/2025 2.84 % (12,165 ) (5,749 ) 100,000 100,000 Interest Rate Swap 7/9/2015 7/1/2020 1.69 % — (43 ) — 425,000 Total $ (58,852 ) $ (24,146 ) $ 750,000 $ 850,000 (1) The Company records all derivative instruments on a gross basis in the consolidated balance sheets, and accordingly, there are no offsetting amounts that net assets against liabilities. As of September 30, 2020, derivatives in a liability position are included in the line item “Interest rate swap liability” in the consolidated balance sheets at fair value. The following table sets forth the impact of the interest rate swaps on the consolidated statements of operations for the periods presented: Nine Months Ended 2020 2019 Interest Rate Swap in Cash Flow Hedging Relationship: Amount recognized in AOCI on derivatives $ (39,716 ) $ (25,849 ) Amount of loss (gain) reclassified from AOCI into earnings under “Interest expense” $ 5,104 $ (2,231 ) Total interest expense presented in the consolidated statement of operations in which the effects of cash flow hedges are recorded $ 59,321 $ 53,642 During the twelve months subsequent to September 30, 2020, the Company estimates that an additional $13.8 million of its income will be recognized from AOCI into earnings. Certain agreements with the derivative counterparties contain a provision providing that if the Company defaults on any of its indebtedness, including a default where repayment of the indebtedness has not been accelerated by the lender within a specified time period, then the Company could also be declared in default on its derivative obligations. As of September 30, 2020 and December 31, 2019, the fair value of interest rate swaps that were in a net liability position, which excludes any adjustment for nonperformance risk related to these agreements, was approximately $58.9 million and $24.1 million, respectively. As of September 30, 2020 and December 31, 2019, the Company had not posted any collateral related to these agreements.	7. Interest Rate Contracts Risk Management Objective of Using Derivatives The Company is exposed to certain risks arising from both business operations and economic conditions. The Company manages economic risks, including interest rate, liquidity, and credit risk primarily by managing the amount, sources, and duration of debt funding and the use of derivative financial instruments. Specifically, the Company enters into derivative financial instruments to manage exposures that arise from business activities that result in the payment of future known and uncertain cash amounts, the value of which are determined by expected cash payments principally related to borrowings and interest rates. Interest rate swaps designated as cash flow hedges involve the receipt of variable amounts from a counterparty in exchange for making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount. The Company does not use derivatives for trading or speculative purposes. Derivative Instruments On August 31, 2018, the Company executed four interest rate swap agreements to hedge future variable cash flows associate d The Company has entered into interest rate swap agreements to hedge the variable cash flows associated with certain existing or forecasted LIBOR based variable-rate debt, including the Company’s KeyBank Loans. The change in the fair value of derivatives designated and qualifying as cash flow hedges is initially recorded in accumulated other comprehensive income (“AOCI”) and is subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. Amounts reported in AOCI related to derivatives will be reclassified to interest expense as interest payments are made on the Company’s variable-rate debt. The following table sets forth a summary of the interest rate swaps at December 31, 2019 and 2018: Fair Value (1) Current Notional Amount December 31, December 31, Derivative Instrument Effective Maturity Interest 2019 2018 2019 2018 Assets/(Liabilities): Interest Rate Swap 7/9/2015 7/1/2020 1.69 % $ (43 ) $ 5,245 $ 425,000 $ 425,000 Interest Rate Swap 7/1/2020 7/1/2025 2.82 % (7,038 ) (1,987 ) 125,000 125,000 Interest Rate Swap 7/1/2020 7/1/2025 2.82 % (5,651 ) (1,628 ) 100,000 100,000 Interest Rate Swap 7/1/2020 7/1/2025 2.83 % (5,665 ) (1,636 ) 100,000 100,000 Interest Rate Swap 7/1/2020 7/1/2025 2.84 % (5,749 ) (1,711 ) 100,000 100,000 Total $ (24,146 ) $ (1,717 ) $ 850,000 $ 850,000 (1) The Company records all derivative instruments on a gross basis in the consolidated balance sheets, and accordingly there are no offsetting amounts that net assets against liabilities. As of December 31, 2019, derivatives in a liability position are included in the line item “Interest rate swap liability,” respectively, in the consolidated balance sheets at fair value. The following table sets forth the impact of the interest rate swaps on the consolidated statements of operations for the periods presented: Year Ended December 31, 2019 2018 Interest Rate Swap in Cash Flow Hedging Relationship: Amount of (loss) gain recognized in AOCI on derivatives $ (19,944 ) $ (3,483 ) Amount of (gain) loss reclassified from AOCI into earnings under “Interest expense” $ (2,359 ) $ (1,818 ) Total interest expense presented in the consolidated statement of operations in which the effects of cash flow hedges are recorded $ 73,557 $ 55,194 During the next twelve months subsequent to December 31, 2019, the Company estimates that an additional $2.8 million of income will be recognized from AOCI into earnings. Certain agreements with the derivative counterparties contain a provision where if the Company defaults on any of the Company’s indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender within a specified time period, then the Company could also be declared in default on its derivative obligations. As of December 31, 2019 and 2018, the fair value of interest rate swaps in a net liability position, which excludes any adjustment for nonperformance risk related to these agreements, was approximately $ $

Accrued Expenses and Other Liab

Accrued Expenses and Other Liabilities	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Payables and Accruals [Abstract]
Accrued Expenses and Other Liabilities	7. Accrued Expenses and Other Liabilities Accrued expenses and other liabilities consisted of the following as of September 30, 2020 and December 31, 2019: September 30, December 31, Accrued tenant improvements $ 26,891 $ 11,802 Real estate taxes payable 18,899 13,385 Prepaid tenant rent 17,429 20,510 Interest payable 10,011 12,264 Deferred compensation 8,687 9,209 Property operating expense payable 7,667 7,752 Accrued CIP 6,902 4,794 Other liabilities 21,771 16,673 Total $ 118,257 $ 96,389	8. Accrued Expenses and Other Liabilities Accrued expenses and other liabilities consisted of the following as of December 31, 2019 and 2018: December 31, 2019 2018 Real estate taxes payable $ 13,385 $ 23,258 Prepaid tenant rent 20,510 15,204 Deferred compensation 9,209 — Interest payable 12,264 9,310 Property operating expense payable 7,752 9,159 Accrued CIP 16,596 4,662 Other liabilities 16,673 19,023 Total $ 96,389 $ 80,616 Deferred Compensation Plan The Company maintains a voluntary, contributory, nonqualified deferred compensation plan which, for each year, permits key employees to defer a percentage of their compensation. The retirement benefit to be provided under the plan is a function of the participant’s deferred compensation and earnings thereupon. The plan is designed to primarily fund the retirement benefit liability through maintenance of certain investments, including participant cash deferrals. The liability to the deferred compensation plan participants as of December 31, 2019 was $9.2 million and is included in “Accrued expenses and other liabilities” in the consolidated balance sheet. The Company has certain investments, including corporate-owned life insurance policies (“COLI”), which had a market value that offset the participant liabilities.

Fair Value Measurements

Fair Value Measurements	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Fair Value Measurements	8. Fair Value Measurements The Company is required to disclose fair value information about all financial instruments, whether or not recognized in the consolidated balance sheets, for which it is practicable to estimate fair value. The Company measures and discloses the estimated fair value of financial assets and liabilities utilizing a fair value hierarchy that distinguishes between data obtained from sources independent of the reporting entity and the reporting entity’s own assumptions about market participant assumptions. This hierarchy consists of three broad levels, as follows: (i) quoted prices in active markets for identical assets or liabilities, (ii) “significant other observable inputs,” and (iii) “significant unobservable inputs.” “Significant other observable inputs” can include quoted prices for similar assets or liabilities in active markets, as well as inputs that are observable for the asset or liability, such as interest rates, foreign exchange rates, and yield curves that are observable at commonly quoted intervals. “Significant unobservable inputs” are typically based on an entity’s own assumptions, since there is little, if any, related market activity. In instances in which the determination of the fair value measurement is based on inputs from different levels of the fair value hierarchy, the level in the fair value hierarchy within which the entire fair value measurement falls is based on the lowest level of input that is significant to the fair value measurement in its entirety. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the asset or liability. There were no transfers between the levels in the fair value hierarchy during the nine months ended September 30, 2020 and the year ended December 31, 2019. The following table sets forth the assets and liabilities that the Company measures at fair value on a recurring basis by level within the fair value hierarchy as of September 30, 2020 and December 31, 2019: Assets/(Liabilities) Total Fair Quoted Prices Significant Significant September 30, 2020 Interest Rate Swap Liability $ (58,852 ) $ — $ (58,852 ) $ — Corporate Owned Life Insurance Asset $ 4,070 $ — $ 4,070 $ — Mutual Funds Asset $ 6,054 $ 6,054 $ — $ — Deferred Compensation Liability $ (8,687 ) $ — $ (8,687 ) $ — December 31, 2019 Interest Rate Swap Liability $ (24,146 ) $ — $ (24,146 ) $ — Earn-out $ (2,919 ) $ — $ — $ (2,919 ) Corporate Owned Life Insurance Asset $ 2,134 $ — $ 2,134 $ — Mutual Funds Asset $ 6,983 $ 6,983 $ — $ — Deferred Compensation Liability $ (9,209 ) $ — $ (9,209 ) $ — Real Estate For the nine months ended September 30, 2020, the Company determined that three of the Company’s properties were impaired based upon discounted cash flow analyses where the most significant inputs were the market rental rates, terminal capitalization rate and discount rate. The Company considered these inputs as Level 3 measurements within the fair value hierarchy. The following table is a summary of the quantitative information related to the non-recurring Range of Inputs or Inputs Unobservable Inputs: 2200 Channahon Road Houston Westway I 2275 Cabot Drive Market rent per square foot $2.00 to $3.00 $15.00 to $17.00 $11.00 to $12.00 Terminal capitalization rate 9.75% 7.75% 9.00% Discount rate 14.00% 9.00% 10.25% Financial Instruments Disclosed at Fair Value Financial instruments as of September 30, 2020 and December 31, 2019 consisted of cash and cash equivalents, restricted cash, accounts receivable, accrued expenses and other liabilities, and mortgage payable and other borrowings, as defined in Note 5, Debt in-place September 30, 2020 December 31, 2019 Fair Value Carrying Value (1) Fair Value Carrying Value (1) BOA Loan $ 357,417 $ 375,000 $ 369,343 $ 375,000 BOA/KeyBank Loan $ 263,840 $ 250,000 $ 264,101 $ 250,000 AIG Loan II $ 120,651 $ 126,970 $ 122,258 $ 126,970 AIG Loan $ 103,110 $ 104,352 $ 101,663 $ 105,762 Midland Mortgage Loan $ 98,077 $ 98,687 $ 99,318 $ 100,249 Samsonite Loan $ 21,418 $ 20,418 $ 22,103 $ 21,154 HealthSpring Mortgage Loan $ 20,621 $ 20,340 $ 20,868 $ 20,723 Pepsi Bottling Ventures Loan $ 19,054 $ 18,677 $ — $ — Highway 94 Loan $ 14,663 $ 14,922 $ 15,101 $ 15,610 Emporia Partners Mortgage Loan $ 1,780 $ 1,749 $ 2,105 $ 2,104 (1) The carrying values do not include the debt premium/(discount) or deferred financing costs as of September 30, 2020 and December 31, 2019. See Note 5, Debt	9. Fair Value Measurements The Company is required to disclose fair value information about all financial instruments, whether or not recognized in the consolidated balance sheets, for which it is practicable to estimate fair value. The Company measures and discloses the estimated fair value of financial assets and liabilities utilizing a fair value hierarchy that distinguishes between data obtained from sources independent of the reporting entity and the reporting entity’s own assumptions about market participant assumptions. This hierarchy consists of three broad levels, as follows: (i) quoted prices in active markets for identical assets or liabilities, (ii) “significant other observable inputs,” and (iii) “significant unobservable inputs.” “Significant other observable inputs” can include quoted prices for similar assets or liabilities in active markets, as well as inputs that are observable for the asset or liability, such as interest rates, foreign exchange rates, and yield curves that are observable at commonly quoted intervals. “Significant unobservable inputs” are typically based on an entity’s own assumptions, since there is little, if any, related market activity. In instances in which the determination of the fair value measurement is based on inputs from different levels of the fair value hierarchy, the level in the fair value hierarchy within which the entire fair value measurement falls is based on the lowest level of input that is significant to the fair value measurement in its entirety. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the asset or liability. There were no transfers between the levels in the fair value hierarchy during the years ended December 31, 2019 and 2018. The following tables set forth the assets and liabilities that the Company measures at fair value on a recurring basis by level within the fair value hierarchy as of December 31, 2019 and 2018: Assets/(Liabilities) Total Fair Quoted Prices in Active Significant Other Significant December 31, 2019 Interest Rate Swap Liability $ (24,146 ) $ — $ (24,146 ) $ — Earn-out $ (2,919 ) $ — $ — $ (2,919 ) Corporate Owned Life Insurance Asset $ 2,134 $ — $ 2,134 $ — Mutual Funds Asset $ 6,983 $ 6,983 $ — $ — Deferred Compensation Liability $ (9,209 ) $ — $ (9,209 ) $ — December 31, 2018 Interest Rate Swap Asset $ 5,245 $ — $ 5,245 $ — Interest Rate Swap Liability $ (6,962 ) $ — $ (6,962 ) $ — Earn-out $ (29,380 ) $ — $ — $ (29,380 ) Earn-outs As part of the Self Administration Transaction, the Current Operating Partnership paid GC LLC in operating units earn-out In addition, the Current Operating Partnership will pay GCC in cash earn-out Earn-Out”) follow-on follow-on follow-on Earn-Out earn-out follow-on follow-on The Company estimates the fair value of the Cash Earn-Out Real Estate For the year ended December 31, 2019, the Company determined that two of the Company’s properties were impaired based upon discounted cash flow analyses where the most significant inputs were the market rental rates, terminal capitalization rate and discount rate. The Company considered these inputs as Level 3 measurements within the fair value hierarchy. The following table is a summary of the quantitative information related to the non-recurring Range of Inputs or Inputs December 31, 2019 Unobservable Inputs 2200 Channahon Road Houston Westway I Market rent per square foot $ 2.00 to $3.00 $ 15.00 to $17.00 Terminal capitalization rate 9.25 % 7.75 % Discount rate 10.50 % 9.00 % Investment in Unconsolidated Entities For the year ended December 31, 2019, the Company determined that its investment in the Digital Realty Trust, Inc. joint venture was other-than-temporarily impaired. The estimation of value for the Digital Realty Trust, Inc. includes an analysis of the Company’s share of net assets, after consideration of the fair value of the Digital Realty Trust, Inc’s. assets and liabilities, pursuant to the distribution provisions provided for in the operating agreement. The value of the underlying real estate asset was determined using discounted cash flow analyses where the most significant inputs were market rental rates, terminal capitalization rate and discount rate. The Company considered these inputs as Level 3 measurements within the fair value hierarchy. The following table is a summary of the quantitative information related to the non-recurring Range of Inputs or Inputs Unobservable Inputs December 31, 2019 Market rent per kilowatt-hour (kWh) $ 80.00 to $90.00 Terminal capitalization rate 6.00 % Discount rate 6.75 % Financial Instruments Disclosed at Fair Value Financial instruments as of December 31, 2019 and December 31, 2018 consisted of cash and cash equivalents, restricted cash, accounts receivable, accrued expenses and other liabilities, and mortgage payable and other borrowings, as defined in Note 6, Debt in-place December 31, 2019 December 31, 2018 Fair Value Carrying Value (1) Fair Value Carrying Value (1) Samsonite $ 22,103 $ 21,154 $ 22,440 $ 22,085 Highway 94 loan $ 15,101 $ 15,610 $ 15,601 $ 16,497 AIG Loan II $ 122,258 $ 126,970 $ — $ — BOA/KeyBank Loan $ 264,101 $ 250,000 $ — $ — AIG Loan $ 101,663 $ 105,762 $ 108,032 $ 107,562 (1) The carrying values do not include the debt premium/(discount) or deferred financing costs as of December 31, 2019 and December 31, 2018. See Note 6, Debt

Equity

Equity	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Equity [Abstract]
Equity	9. Equity Classes Class T shares, Class S shares, Class D shares, Class I shares, Class A shares, Class AA shares, Class AAA shares and Class E shares vote together as a single class, and each share is entitled to one vote on each matter submitted to a vote at a meeting of the Company’s stockholders; provided that with respect to any matter that would only have a material adverse effect on the rights of a particular class of common stock, only the holders of such affected class are entitled to vote. As of September 30, 2020, there were 555,730 shares of Class T common stock, 1,800 shares of Class S common stock, 40,791 shares of Class D common stock, 1,894,561 shares of Class I common stock, 24,227,432 shares of Class A common stock, 47,184,766 shares of Class AA common stock, 917,756 shares of Class AAA common stock, and 154,952,279 shares of Class E common stock outstanding. Common Equity As of September 30, 2020, the Company had received aggregate gross offering proceeds of approximately $2.8 billion from the sale of shares in the private offering, the public offerings, and the DRP offerings, as discussed in Note 1, Organization EA-1’s Termination of Follow-On On February 26, 2020, the Company’s Board approved the temporary suspension of the primary portion of the Company’s Follow-On Follow-On S-11 No. 333-217223), Amendment and Reinstatement of DRP and Partial Reinstatement of SRP On July 16, 2020, the Board approved the (i) reinstatement of the DRP, effective July 27, 2020; (ii) amendment of the DRP to allow for the use of the most recently published NAV per share of the applicable share class available at the time of reinvestment as the DRP purchase price for each share class; and (iii) partial reinstatement of the SRP, effective August 17, 2020, subject to the following limitations: (A) redemptions will be limited to those sought upon a stockholder’s death, qualifying disability, or determination of incompetence or incapacitation in accordance with the terms of the SRP, and (B) the quarterly cap on aggregate redemptions will be equal to the aggregate NAV, as of the last business day of the previous quarter, of the shares issued pursuant to the DRP during such quarter. Settlements of share redemptions will be made within the first three business days of the following quarter. Redemption activity during the quarter is listed below. Distribution Reinvestment Plan (DRP) The Company has adopted the DRP, which allows stockholders to have dividends and other distributions otherwise distributable to them invested in additional shares of common stock. No sales commissions or dealer manager fees will be paid on shares sold through the DRP, but the DRP shares will be charged the applicable distribution fee payable with respect to all shares of the applicable class. The purchase price per share under the DRP is equal to the net asset value (“NAV”) per share applicable to the class of shares purchased, calculated using the most recently published NAV available at the time of reinvestment. The Company may amend or terminate the DRP for any reason at any time upon 10 days’ prior written notice to stockholders, which may be provided through the Company’s filings with the SEC. As of September 30, 2020 and December 31, 2019, the Company had issued approximately $310.8 million and $293.7 million in shares pursuant to the DRP, respectively. Share Redemption Program (SRP) The Company has adopted the SRP that enables stockholders to sell their stock to the Company in limited circumstances. On August 8, 2019, the Company’s Board amended and restated its SRP, effective as of September 12, 2019, in order to (i) clarify that only those stockholders who purchased their shares from us or received their shares from the Company (directly or indirectly) through one or more non-cash On November 7, 2019, Board amended and restated the SRP, effective as of December 12, 2019, in order to (i) provide for redemption sought upon a stockholder’s determination of incompetence or incapacitation; (ii) clarify the circumstances under which a determination of incompetence or incapacitation will entitle a stockholder to such redemption; and (iii) make certain other clarifying changes. Under the SRP, the Company will redeem shares as of the last business day of each quarter. The redemption price will be equal to the NAV per share for the applicable class generally on the 13th day of the month prior to quarter end (which will be the most recently published NAV). Redemption requests must be received by 4:00 p.m. (Eastern time) on the second to last business day of the applicable quarter. Redemption requests exceeding the quarterly cap will be filled on a pro rata basis. With respect to any pro rata treatment, redemption requests following the death or qualifying disability of a stockholder will be considered first, as a group, followed by requests where pro rata redemption would result in a stockholder owning less than the minimum balance of $2,500 of shares of the Company’s common stock, which will be redeemed in full to the extent there are available funds, with any remaining available funds allocated pro rata among all other redemption requests. All unsatisfied redemption requests must be resubmitted after the start of the next quarter, or upon the recommencement of the SRP, as applicable. There are several restrictions under the SRP. Stockholders generally have to hold their shares for one year before submitting their shares for redemption under the program; however, the Company will waive the one-year one-year As the value on the aggregate redemptions of the Company’s shares is outside the Company’s control, the 5% quarterly cap is considered to be temporary equity and is presented as the common stock subject to redemption on the accompanying consolidated balance sheets. The following table summarizes share redemption (excluding the self-tender offer) activity during the three and nine months ended September 30, 2020 and 2019: Three Months Ended Nine Months Ended 2020 2019 2020 2019 Shares of common stock redeemed 693,199 10,589,361 1,241,812 10,589,361 Weighted average price per share $ 8.86 $ 9.54 $ 9.07 $ 9.54 Since July 31, 2014 and through September 30, 2020, the Company had redeemed 25,472,376 shares (excluding the self-tender offer) of common stock for approximately $240.0 million at a weighted average price per share of $9.42 pursuant to the SRP. Since July 31, 2014 and through December 31, 2019, the Company had honored all outstanding redemption requests. During the three months ended September 30, 2019, redemption requests for Class E shares exceeded the quarterly 5% per share class limitation by 2,872,488 shares or approximately $27.4 million. The Class E shares not redeemed during that quarter, or 25% of the shares submitted, were treated as redemption requests for the quarter ended December 31, 2019. All outstanding requests for the quarter ended September 30, 2019 and all new requests for the quarter ended December 31, 2019 were honored on January 2, 2020. Redemptions sought upon a stockholder’s death, qualifying disability, or determination of incompetence or incapacitation in the first quarter of 2020 were honored in accordance with the terms of the SRP, and the SRP officially was suspended as of March 28, 2020 for regular redemptions and subsequent redemptions for death, qualifying disability, or determination of incompetence or incapacitation after those honored in the first quarter of 2020. During the three months ended September 30, 2020, the Company received redemption requests (including those due to death, disability or incapacitation) for 693,199 shares of common stock that were all redeemed during and subsequent to the current quarter. Issuance of Restricted Stock Units to Executive Officers and Employees On January 15, 2020, the Company issued 589,248 RSUs to Company employees, including officers, under the Griffin Capital Essential Asset REIT, Inc. Employee and Director Long-Term Incentive Plan (as amended, the “LTIP”). Each RSU represents a contingent right to receive one share of the Company’s Class E common stock when settled in accordance with the terms of the respective Restricted Stock Unit Award Agreement and will vest in equal, 25% installments on each of December 31, 2020, 2021, 2022, and 2023 provided that the employee continues to be employed by the Company on each such date, subject to certain accelerated vesting provisions as provided in the respective Restricted Stock Unit Award Agreement. The fair value of grants issued was approximately $5.5 million. A total of 3,209 shares were forfeited during the nine months ended September 30, 2020.	10. Equity Share Classes Class T shares, Class S shares, Class D shares, Class I shares, Class A shares, Class AA shares, Class AAA and Class E shares vote together as a single class, and each share is entitled to one vote on each matter submitted to a vote at a meeting of the Company’s stockholders; provided that with respect to any matter that would only have a material adverse effect on the rights of a particular class of common stock, only the holders of such affected class are entitled to vote. As of December 31, 2019, there were 407,773 shares of Class T common stock, 1,790 shares of Class S common stock, 25,860 shares of Class D common stock, 1,607,399 shares of Class I common stock, 24,035,934 shares of Class A common stock, 46,675,314 of Class AA common stock, 947,992 shares of Class AAA common stock, and 154,151,658 of Class E common stock outstanding. Common Equity As of December 31, 2019, the Company had received aggregate gross offering proceeds of approximately $2.7 billion from the sale of shares in the private offering, the public offerings, and the DRP offerings, as discussed in Note 1, Organization 43,772,6 11 EA-1’s Extension of the Follow-On On August 8, 2019, the Company’s Board extended the termination date of the Company’s Follow-On Follow-On Follow-On Follow-On Distribution Reinvestment Plan (DRP) The Company has adopted the DRP, which allows stockholders to have dividends and other distributions otherwise distributable to them invested in additional shares of common stock. No sales commissions or dealer manager fees will be paid on shares sold through the DRP, but the DRP shares will be charged the applicable distribution fee payable with respect to all shares of the applicable class. The purchase price per share under the DRP is equal to the NAV per share applicable to the class of shares purchased, calculated as of the distribution date. The Company may amend or terminate the DRP for any reason at any time upon 10 days’ prior written notice to stockholders, which may be provided through the Company’s filings with the SEC. As of December 31, 2019 and December 31, 2018, the Company had issued approximately $293.7 million and $252.8 million in shares pursuant to the DRP, respectively. As of December 31, 2019, $20.6 million which was subject to the Company’s quarterly cap on aggregate redemptions are classified on the consolidated balance sheet as common stock subject to redemption. Share Redemption Program The Company has adopted the SRP that enables stockholders to sell their stock to the Company in limited circumstances. The SRP was previously suspended as of January 19, 2019, due to the Company’s then-pending Mergers with EA-1 EA-1 On August 8, 2019, the Company’s Board amended and restated its SRP, effective as of September 12, 2019, in order to (i) clarify that only those stockholders who purchased their shares from us or received their shares from the Company (directly or indirectly) through one or more non-cash On November 7, 2019, Board amended and restated the SRP, effective as of December 12, 2019, in order to (i) provide for redemption sought upon a stockholder’s determination of incompetence or incapacitation; (ii) clarify the circumstances under which a determination of incompetence or incapacitation will entitle a stockholder to such redemption; and (iii) make certain other clarifying changes. Under the SRP, the Company will redeem shares as of the last business day of each quarter. The redemption price will be equal to the NAV per share for the applicable class generally on the 13th day of the month prior to quarter end. Redemption requests must be received by 4:00 p.m. (Eastern time) on the second to last business day of the applicable quarter. Redemption requests exceeding the quarterly cap will be filled on a pro rata basis. With respect to any pro rata treatment, redemption requests following the death or qualifying disability of a stockholder will be considered first, as a group, followed by requests where pro rata redemption would result in a stockholder owning less than the minimum balance of $2,500 of shares of the Company’s common stock, which will be redeemed in full to the extent there are available funds, with any remaining available funds allocated pro rata among all other redemption requests. All unsatisfied redemption requests must be resubmitted after the start of the next quarter, or upon the recommencement of the SRP, as applicable. There are several restrictions under the SRP. Stockholders generally have to hold their shares for one year before submitting their shares for redemption under the program; however, the Company will waive the one-year one-year Subsequent Events Follow-On As the value on the aggregate redemptions of the Company’s shares is outside the Company’s control, the 5% quarterly cap is considered to be temporary equity and is presented as the common stock subject to redemption on the accompanying consolidated balance sheets. As of December 31, 2019, the quarterly cap was approximately $117.2 million. The following table summarizes share redemption (excluding the self-tender offer) activity during the years ended December 31, 2019 and 2018: December 31, 2019 2018 Shares of common stock redeemed 20,933,322 8,695,600 Weighted average price per share $ 9.44 $ 9.61 Since July 31, 2014 and through December 31, 2019, the Company had redeemed 24,230,565 shares (excluding the self-tender offer) of common stock for approximately $228.7 million at a weighted average price per share of $9.44 pursuant to the SRP. Since July 31, 2014 and through December 31, 2019, the Company has honored all redemption requests. The Company has funded all redemptions using proceeds from the sale of shares pursuant to the DRP. Employment Agreements With Executive Officers In connection with the Mergers and Michael J. Escalante’s appointment as Chief Executive Officer of the Company, the Company assumed, from EA-1, The Company also assumed employment agreements entered into by EA-1 8-K Issuance of Restricted Stock Units to Executive Officers Pursuant to the terms of the Escalante Employment Agreement and the Other Employee Employment Agreements, on May 1, 2019, the Company entered into Time-Based Restricted Stock Unit Agreements with each of Messrs. Escalante, Bitar, Hirsch, Sohn and Tausk for the issuance of each of their respective initial equity awards (collectively, the “Restricted Stock Unit Award Agreements”), pursuant to which the Company issued restricted stock units to such executive officers under the Employee and Director Long-Term Incentive Plan in the following amounts (the “RSUs”): 732,218 RSUs to Mr. Escalante; 104,603 RSUs to Mr. Bitar; 67,992 RSUs to Mr. Hirsch; 52,301 RSUs to Mr. Sohn; and 52,301 RSUs to Mr. Tausk. Each RSU represents a contingent right to receive one share of the Company’s Class E Common Stock when settled in accordance with the terms of the respective Restricted Stock Unit Award Agreement and will vest in equal, 25% installments on each of December 31, 2019, 2020, 2021 and 2022, provided that such executive officer remains continuously employed by the Company on each such date, subject to certain accelerated vesting provisions as provided in the Restricted Stock Unit Award Agreements. The shares of Class E Common Stock underlying the RSUs will not be delivered upon vesting, but instead will be deferred for delivery on May 1, 2023, or, if sooner, upon the executive officer’s termination of employment. The fair value of grants issued was approximately $9.7 million. Total vested RSUs shares as of December 31, 2019 were 252,353. Total forfeited shares during the year ended December 31, 2019 were 9,124. Total compensation expense related to the RSUs for the year ended December 31, 2019 was approximately $2.4 million. As of December 31, 2019, there was $7.2 million of unrecognized compensation expense remaining over three years. Distributions Earnings and profits, which determine the taxability of distributions to stockholders, may differ from income reported for financial reporting purposes due to the differences for federal income tax purposes in the treatment of loss on debt, revenue recognition and compensation expense and in the basis of depreciable assets and estimated useful lives used to compute depreciation expense. The following unaudited table summarizes the federal income tax treatment for all distributions per share for the years ended December 31, 2019, 2018, and 2017 reported for federal tax purposes and serves as a designation of capital gain distributions, if applicable, pursuant to Internal Revenue Code Section 857(b)(3)(C) and Treasury Regulation §1.857-6(e). Year Ended December 31, 2019 2018 2017 Ordinary income $ 0.22 37 % $ 0.32 47 % $ 0.40 59 % Capital gain 0.08 13 % — — % 0.18 26 % Return of capital 0.30 50 % 0.36 53 % 0.10 15 % Total distributions paid $ 0.60 100 % $ 0.68 100 % $ 0.68 100 %

Noncontrolling Interests

Noncontrolling Interests	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Noncontrolling Interest [Abstract]
Noncontrolling Interest	10. Noncontrolling Interests Noncontrolling interests represent limited partnership interests in the Current Operating Partnership in which the Company is the general partner. General partnership units and limited partnership units of the Current Operating Partnership were issued as part of the initial capitalization of the EA-1 Organization As of September 30, 2020, noncontrolling interests were approximately 12.20% of total shares and 12.01% of weighted average shares outstanding (both measures assuming OP Units were converted to common stock). The Company has evaluated the terms of the limited partnership interests in the Current Operating Partnership, and as a result, has classified limited partnership interests issued in the initial capitalization, in conjunction with the contributed assets and in connection with the Self-Administration Transaction, as noncontrolling interests, which are presented as a component of permanent equity, except as discussed below. The Company evaluates individual noncontrolling interests for the ability to recognize the noncontrolling interest as permanent equity on the consolidated balance sheets at the time such interests are issued and on a continual basis. Any noncontrolling interest that fails to qualify as permanent equity has been reclassified as temporary equity and adjusted to the greater of (a) the carrying amount or (b) its redemption value as of the end of the period in which the determination is made. As of September 30, 2020, the limited partners of the Current Operating Partnership owned approximately 31.8 million OP Units, which were issued to affiliated parties and unaffiliated third parties in exchange for certain properties, and in connection with the Self-Administration Transaction and other services. Approximately 20.4 million OP Units issued to affiliates have a mandatory hold period until December 2020 and have no voting rights until the units are converted to common shares. In addition, 0.2 million OP Units were issued to unaffiliated third parties unrelated to property contributions. To the extent the contributors should elect to redeem all or a portion of their Current Operating Partnership units, pursuant to the terms of the respective contribution agreement, such redemption shall be at a per unit value equivalent to the price at which the contributor acquired its OP Units in the respective transaction. The limited partners of the Current Operating Partnership, other than those related to the Will Partners REIT, LLC (“Will Partners” property) contribution, will have the right to cause the general partner of the Current Operating Partnership, the Company, to redeem their OP Units for cash equal to the value of an equivalent number of shares, or, at the Company’s option, purchase their OP Units by issuing one share of the Company’s common stock for the original redemption value of each limited partnership unit redeemed. The Company has the control and ability to settle such requests in shares. These rights may not be exercised under certain circumstances which could cause the Company to lose its REIT election. There were 134,383 OP Units redeemed during the nine months ended September 30, 2020 and 6,000 units redeemed during the year ended December 31, 2019. The following summarizes the activity for noncontrolling interests recorded as equity for the nine months ended September 30, 2020 and year ended December 31, 2019: Nine Months Ended Year Ended Beginning balance $ 245,040 $ 232,203 Contributions/issuance of noncontrolling interests — 30,039 Reclass of noncontrolling interest subject to redemption 263 — Repurchase of noncontrolling interest (1,137 ) — Issuance of stock dividend for noncontrolling interest 1,068 1,861 Distributions to noncontrolling interests (10,556 ) (19,716 ) Allocated distributions to noncontrolling interests subject to redemption (23 ) (42 ) Net (loss) income (598 ) 3,749 Other comprehensive loss (4,165 ) (3,054 ) Ending balance $ 229,892 $ 245,040 Noncontrolling interests subject to redemption Operating partnership units issued pursuant to the Will Partners property contribution are not included in permanent equity on the consolidated balance sheets. The partners holding these units can cause the general partner to redeem the units for the cash value, as defined in the Current Operating Partnership agreement. As the general partner does not control these redemptions, these units are presented on the consolidated balance sheets as noncontrolling interest subject to redemption at their redeemable value. The net income (loss) and distributions attributed to these limited partners is allocated proportionately between common stockholders and other noncontrolling interests that are not considered redeemable.	11. Noncontrolling Interests Noncontrolling interests represent limited partnership interests in the Current Operating Partnership in which the Company is the general partner. General partnership units and limited partnership units of the Current Operating Partnership were issued as part of the initial capitalization of the EA-1 Organization As of December 31, 2019, noncontrolling interests were approximately 12.08% of total shares and 12.02% of weighted average shares outstanding (both measures assuming OP Units were converted to common stock). The Company has evaluated the terms of the limited partnership interests in the Current Operating Partnership, and as a result, has classified limited partnership interests issued in the initial capitalization, in conjunction with the contributed assets and in connection with the Self-Administration Transaction, as noncontrolling interests, which are presented as a component of permanent equity, except as discussed below. The Company evaluates individual noncontrolling interests for the ability to recognize the noncontrolling interest as permanent equity on the consolidated balance sheets at the time such interests are issued and on a continual basis. Any noncontrolling interest that fails to qualify as permanent equity has been reclassified as temporary equity and adjusted to the greater of (a) the carrying amount or (b) its redemption value as of the end of the period in which the determination is made. The Current Operating Partnership issued 31.6 million OP Units, including stock distributions, to affiliated parties and unaffiliated third parties in exchange for certain properties and in connection with the Self Administration Transaction. The OP Units were issued to affiliates as part of the Self Administration Transaction have a mandatory hold period until December 2020 and have no voting rights until the units are converted to common shares. In addition, 0.2 million OP Units were issued to unaffiliated third parties unrelated to property contributions. To the extent the contributors should elect to redeem all or a portion of their Current Operating Partnership units, pursuant to the terms of the respective contribution agreement, such redemption shall be at a per unit value equivalent to the price at which the contributor acquired its OP Units in the respective transaction. The limited partners of the Current Operating Partnership, other than those related to the Will Partners REIT, LLC (“Will Partners” property) contribution, will have the right to cause the general partner of the Current Operating Partnership, the Company, to redeem their OP Units for cash equal to the value of an equivalent number of shares, or, at the Company’s option, purchase their OP Units by issuing one share of the Company’s common stock for the original redemption value of each limited partnership unit redeemed. The Company has the control and ability to settle such requests in shares. These rights may not be exercised under certain circumstances which could cause the Company to lose its REIT election. There were 6,000 unit redemptions during the year ended year ended December 31, 2019 and none in 2018. The following summarizes the activity for noncontrolling interests recorded as equity for the years ended December 31, 2019 and 2018: December 31, 2019 2018 Beginning balance $ 232,203 $ 31,105 Contributions/issuance of noncontrolling interests 30,039 (1) 205,000 (1) Issuance of stock dividend for noncontrolling interest 1,861 — Distributions to noncontrolling interests (19,716 ) (4,368 ) Allocated distributions to noncontrolling interests subject to redemption (42 ) (13 ) Net Income 3,749 789 Other comprehensive income (loss) (3,054 ) (310 ) Ending balance $ 245,040 $ 232,203 (1) The issuance of noncontrolling units was the result of the Self Administration Transaction and Mergers. See Note 3, Self Administration Transaction, Real Estate Noncontrolling interests subject to redemption Operating partnership units issued pursuant to the Will Partners property contribution are not included in permanent equity on the consolidated balance sheets. The partners holding these units can cause the general partner to redeem the units for the cash value, as defined in the operating partnership agreement. As the general partner does not control these redemptions, these units are presented on the consolidated balance sheets as noncontrolling interest subject to redemption at their redeemable value. The net income (loss) and distributions attributed to these limited partners is allocated proportionately between common stockholders and other noncontrolling interests that are not considered redeemable.

Perpetual Convertible Preferred

Perpetual Convertible Preferred Shares	12 Months Ended
	Dec. 31, 2019
Temporary Equity [Line Items]
Griffin Capital Essential Asset REIT, Inc. [Member]	12. Perpetual Convertible Preferred Shares On August 8, 2018, EA-1 EA-1 “EA-1 EA-1 EA-1 EA-1 EA-1’s EA-1. Upon consummation of the Mergers, the Company issued 5,000,000 Series A Preferred Shares to the Purchaser. Pursuant to the Purchase Agreement, the Purchaser has agreed to purchase an additional 5,000,000 Series A Preferred Shares (the “Second Issuance”) at a later date (the “Second Issuance Date”) for an additional purchase price of $125.0 million subject to approval by the Purchaser’s internal investment committee and the satisfaction of the conditions in the Purchase Agreement, including, but not limited to, the execution of an Ownership Limit Exemption Agreement. Pursuant to the Purchase Agreement, the Purchaser is generally restricted from transferring the Series A Preferred Shares or the economic interest in the Series A Preferred Shares for a period of five years from the closing date. The Company’s Series A Preferred Shares are not registered under the Securities Act and are not listed on a national securities exchange. The articles supplementary filed by the Company related to the Series A Preferred Shares set forth the key terms of such shares as follows: Distributions Subject to the terms of the applicable articles supplementary, the holders of the Series A Preferred Shares are entitled to receive distributions quarterly in arrears at a rate equal to one-fourth i. an initial annual distribution rate of 6.55%, or if the Company’s Board decides to proceed with the Second Issuance, 6.55% from and after the Second Issuance Date until the five year anniversary of the First Issuance Date, or if the Second Issuance occurs, the five year anniversary of the Second Issuance Date (the “Reset Date”), subject to paragraphs (iii) and (iv) below; ii. 6.75% from and after the Reset Date, subject to paragraphs (iii) and (iv) below; iii. if a listing (“Listing”) of the Company’s shares of common stock or the Series A Preferred Shares on a national securities exchange registered under Section 6(a) of the Exchange Act, does not occur by August 1, 2020 (the “First Triggering Event”), 7.55% from and after August 2, 2020 and 7.75% from and after the Reset Date, subject to certain conditions as set forth in the articles supplementary; or iv. if a Listing does not occur by August 1, 2021, 8.05% from and after August 2, 2021 until the Reset Date, and 8.25% from and after the Reset Date. Liquidation Preference Upon any voluntary or involuntary liquidation, dissolution or winding up of the Company, the holders of the Series A Preferred Shares will be entitled to be paid out of the Company’s assets legally available for distribution to the stockholders, after payment of or provision for the Company’s debts and other liabilities, liquidating distributions, in cash or property at its fair market value as determined by the Company’s Board, in the amount, for each outstanding Series A Preferred Share equal to $25.00 per Series A Preferred Share (the “Liquidation Preference”), plus an amount equal to any accumulated and unpaid distributions to the date of payment, before any distribution or payment is made to holders of shares of common stock or any other class or series of equity securities ranking junior to the Series A Preferred Shares but subject to the preferential rights of holders of any class or series of equity securities ranking senior to the Series A Preferred Shares. After payment of the full amount of the Liquidation Preference to which they are entitled, plus an amount equal to any accumulated and unpaid distributions to the date of payment, the holders of Series A Preferred Shares will have no right or claim to any of the Company’s remaining assets. Company Redemption Rights The Series A Preferred Shares may be redeemed by the Company, in whole or in part, at the Company’s option, upon the earlier to occur of: (i) five years from the First Issuance Date or (ii) the First Triggering Event, at a per share redemption price in cash equal to $25.00 per Series A Preferred Share (the “Redemption Price”), plus any accumulated and unpaid distributions on the Series A Preferred Shares up to the redemption date, plus, a redemption fee of 1.5% of the Redemption Price in the case of a redemption that occurs on or after the date of the First Triggering Event, but before the date that is five years from the First Issuance Date. Holder Redemption Rights In the event the Company fails to effect a Listing by August 1, 2023, the holder of any Series A Preferred Shares has the option to request a redemption of such shares on or on any date following August 1, 2023, at the Redemption Price, plus any accumulated and unpaid distributions up to the redemption date (the “Redemption Right”); provided, however, that no holder of the Series A Preferred Shares shall have a Redemption Right if a Listing occurs prior to or on August 1, 2023. Conversion Rights Subject to the Company’s redemption rights and certain conditions set forth in the articles supplementary, a holder of the Series A Preferred Shares, at his or her option, will have the right to convert such holder’s Series A Preferred Shares into shares of the Company’s common stock any time after the earlier of (i) five years from the First Issuance Date, or if the Second Issuance occurs, five years from the Second Issuance Date or (ii) a Change of Control (as defined in the articles supplementary) at a per share conversion rate equal to the Liquidation Preference divided by the then Common Stock Fair Market Value (as defined in the articles supplementary).

Related Party Transactions

Related Party Transactions	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Related Party Transaction, Due from (to) Related Party [Abstract]
Related Party Transactions	11. Related Party Transactions Summarized below are the related party costs incurred by the Company for the nine months ended September 30, 2020 and 2019, respectively, and any related amounts receivable and payable as of September 30, 2020 and December 31, 2019: Incurred for the Nine Receivable as of September 30, September 30, December 31, 2020 2019 2020 2019 Assets Assumed through the Self-Administration Transaction Cash to be received from an affiliate related to deferred compensation and other payroll costs $ — $ 658 $ — $ — Other fees 150 — 201 352 Due from GCC Reimbursable Expense Allocation 16 — 5 4 Payroll/Expense Allocation 300 321 781 481 Due from Affiliates Payroll/Expense Allocation — 1,217 — — O&O Costs (including payroll allocated to O&O) — 157 — — Other Fees — 6,375 — — Total $ 466 $ 8,728 $ 987 $ 837 Incurred for the Nine Payable as of September 30, September 30, December 31, 2020 2019 2020 2019 Expensed Costs advanced by the advisor $ 1,546 $ 2,571 $ 1,120 $ 1,164 Consulting fee—shared services 1,875 1,874 631 441 Disposition fees — 641 — — Capitalized Leasing commissions — 596 — — Acquisition fees — 942 — — Assumed through Self-Administration Transaction/Mergers Earn-out — — 338 2,919 Stockholder Servicing Fee — 693 2,354 4,994 Other fees — 20 — — Other Distributions 8,353 10,089 712 1,365 Total $ 11,774 $ 17,426 $ 5,155 $ 10,883 Dealer Manager Agreement GCEAR entered into a dealer manager agreement and associated form of participating dealer agreement (the “Dealer Manager Agreement”) with the dealer manager for the Follow-On Follow-On Equity. Distribution Fees Subject to the Conflicts of Interest Affiliated Dealer Manager Since Griffin Capital Securities, LLC, the Company’s dealer manager, is an affiliate of the Company’s former sponsor, the Company does not have the benefit of an independent due diligence review and investigation of the type normally performed by an unaffiliated, independent underwriter in connection with the offering of securities. The Company’s dealer manager is also serving as the dealer manager for Griffin-American Healthcare REIT III, Inc. (“GAHR III”) and Griffin-American Healthcare REIT IV, Inc. (“GAHR IV”), each of which are publicly-registered, non-traded non-diversified, closed-end Administrative Services Agreement In connection with the Mergers, the Company assumed, as the successor of EA-1 EA-1 Certain Conflict Resolution Procedures Every transaction that the Company enters into with affiliates is subject to an inherent conflict of interest. The Board may encounter conflicts of interest in enforcing the Company’s rights against any affiliate in the event of a default by or disagreement with an affiliate or in invoking powers, rights or options pursuant to any agreement between the Company and affiliates. See the Company’s Code of Ethics available at the “Corporate Governance” subpage of the Company’s website at www.GCEAR.com for a detailed description of the Company’s conflict resolution procedures.	13. Related Party Transactions Summarized below are the related-party costs incurred by the Company for the years ended December 31, 2019, 2018 and 2017, respectively, and any related amounts payable and receivable as of December 31, 2019 and 2018: Incurred for the Year Ended Payable as of 2019 2018 2017 2019 2018 Expensed Operating expenses $ — $ 3,594 $ 2,652 $ — $ 74 Asset management fees — 23,668 23,499 — — Property management fees — 9,479 9,782 — 875 Disposition fees 641 177 1,950 — — Costs advanced by the advisor 3,771 546 587 1,164 341 Consulting fee — shared services 2,500 — — 441 — Capitalized Acquisition fees (1) 942 5,331 3,791 — — Leasing commissions 2,540 2,289 1,752 — — Assumed through Self- Administration Transaction/Mergers Earn-out — — — 2,919 29,380 Other Fees 20 — — — 11,734 Stockholder Servicing Fee 692 — — 4,994 — Other Distributions 14,138 — — 1,365 2 Total $ 25,244 $ 45,084 $ 44,013 $ 10,883 $ 42,406 (1) Acquisition fees related to the acquisition of McKesson II during the year ended December 31, 2019 were capitalized as the acquisition did not meet the business combination criteria. Incurred for the Year Receivable as of 2019 2018 2017 2019 2018 Assets Assumed through the Self-Administration Transaction Cash to be received from an affiliate related to deferred compensation and other payroll costs $ 658 $ — $ — $ — $ 7,951 Other fees — — — 352 11,734 Due from Griffin Capital Company Payroll/Expense Allocation 481 — — 481 — Reimbursable Expense Allocation 4 — — 4 — Due from Affiliates Payroll/Expense Allocation 1,217 — — — — O&O Costs (including payroll allocated to O&O) 157 — — — — Other Fees (1) 6,375 — — — — Total $ 8,892 $ — $ — $ 837 $ 19,685 (1) Includes Payroll/Expense allocation, Offering Costs, Advisory Fee, Performance Distribution, LP Distributions & Employee Reimbursements. Fifth Amended and Restated Limited Partnership Agreement of the Current Operating Partnership On April 30, 2019, in connection with the Partnership Merger, the Company entered into a Fifth Amended and Restated Limited Partnership Agreement of the Current Operating Partnership (the “Operating Partnership Agreement”), which amended and superseded the Fourth Amended and Restated Limited Partnership Agreement. The Operating Partnership Agreement reflects, among other things, the change of the general partner of the GCEAR Operating Partnership to the Company, the exchange of classes of units of limited partnership interest pursuant to the Partnership Merger, the authorization of additional classes of units of limited partnership interest of the Current Operating Partnership that were outstanding prior to the Mergers and were issued in connection with the Mergers, and other updates to reflect the effects of the Mergers. The terms of the Operating Partnership Agreement are included in the Company’s Form 8-K Advisory and Property Management Fees Prior to the execution of the Merger Agreement, the Company’s advisor and property manager provided services to the Company, including asset acquisition and disposition decisions, asset management, operating and leasing of properties, property management, and other general and administrative responsibilities. Subsequent to the Mergers, advisory or property management fees paid by the Company are intercompany transactions and are eliminated in consolidation. Dealer Manager Agreement GCEAR entered into a dealer manager agreement and associated form of participating dealer agreement (the “Dealer Manager Agreement”) with the Dealer Manager. The terms of the Dealer Manager Agreement are substantially similar to the terms of the dealer manager agreement from GCEAR’s IPO, except as it relates to the share classes offered and the fees to be received by the Dealer Manager (terms of the Dealer Manager Agreement are included in GCEAR’s 2018 Annual Report on Form 10-K Distribution Fees Subject to 10-K Conflicts of Interest Affiliated Dealer Manager Since Griffin Capital Securities, LLC, the Company’s dealer manager, is an affiliate of the Company’s former sponsor, the Company does not have the benefit of an independent due diligence review and investigation of the type normally performed by an unaffiliated, independent underwriter in connection with the offering of securities. The Company’s dealer manager is also serving as the dealer manager for Griffin-American Healthcare REIT III, Inc. (“GAHR III”), and Griffin-American Healthcare REIT IV, Inc. (“GAHR IV”), each of which are publicly-registered, non-traded non-diversified, closed-end Administrative Services Agreement In connection with the Mergers, the Company assumed, as the successor of EA-1 EA-1 Certain Conflict Resolution Procedures Every transaction that the Company enters into with the Company’s dealer manager or its affiliates is subject to an inherent conflict of interest. The Board may encounter conflicts of interest in enforcing the Company’s rights against any affiliate in the event of a default by or disagreement with an affiliate or in invoking powers, rights or options pursuant to any agreement between the Company and the Company’s dealer manager or any of its affiliates. In order to reduce or eliminate certain potential conflicts of interest, the Company addresses any conflicts of interest in two distinct ways: First, the Company’s Nominating and Corporate Governance Committee considers and acts on any conflicts-related matter required by the Company’s charter or otherwise permitted by the Maryland General Corporation Law (“MGCL”) where the exercise of independent judgment by any of the Company’s directors (who is not an independent director) could reasonably be compromised, including approval of any transaction involving the Company’s dealer manager and its affiliates. Second, the Company’s charter contains, or the Company is otherwise subject to, a number of restrictions relating to (1) transactions the Company enters into with the Company’s dealer manager and its affiliates, (2) certain future offerings, and (3) allocation of investment opportunities among affiliated entities. These restrictions include, among others, the following: • The Company will not purchase or lease properties in which the Company’s dealer manager, any of the Company’s directors or any of their respective affiliates has an interest without a determination by a majority of the directors, including a majority of the independent directors, not otherwise interested in such transaction, that such transaction is fair and reasonable to the Company and at a price to the Company no greater than the cost of the property to the seller or lessor unless there is substantial justification for any amount that exceeds such cost and such excess amount is determined to be reasonable. In no event will the Company acquire any such property at an amount in excess of its appraised value. The Company will not sell or lease properties to the Company’s dealer manager, any of the Company’s directors or any of their respective affiliates unless a majority of the directors, including a majority of the independent directors, not otherwise interested in the transaction, determines that the transaction is fair and reasonable to the Company. Notwithstanding the foregoing, the Company has agreed that the Company will not acquire properties in which the Company’s former sponsor, or its affiliates, owns an economic interest. • The Company will not make any loans to the Company’s dealer manager, any of the Company’s directors or any of their respective affiliates, except that the Company may make or invest in mortgage loans involving the Company’s dealer manager, the Company’s directors or their respective affiliates, provided that an appraisal of the underlying property is obtained from an independent appraiser and the transaction is approved as fair and reasonable to the Company and on terms no less favorable to the Company than those available from third parties. In addition, the Company’s dealer manager, any of the Company’s directors and any of their respective affiliates will not make loans to the Company or to joint ventures in which the Company is a joint venture partner unless approved by a majority of the directors, including a majority of the independent directors, not otherwise interested in the transaction, as fair, competitive and commercially reasonable, and no less favorable to the Company than comparable loans between unaffiliated parties. The Company will not accept goods or services from the Company’s dealer manager or its affiliates or enter into any other transaction with the Company’s dealer manager or its affiliates unless a majority of the Company’s directors, including a majority of the independent directors, not otherwise interested in the transaction, approve such transaction as fair and reasonable to the Company and on terms and conditions not less favorable to the Company than those available from unaffiliated third parties.

Operating Leases

Operating Leases	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Leases [Abstract]
Operating Leases	12. Operating Leases Lessor The Company leases commercial and industrial space to tenants primarily under non-cancelable The Company recognized $234.9 million and $212.8 million of lease income related to operating lease payments for the nine months ended September 30, 2020 and 2019, respectively. The Company’s current leases have expirations ranging from 2020 to 2044. The following table sets forth the undiscounted cash flows for future minimum base rents to be received under operating leases as of September 30, 2020: As of Remaining 2020 $ 72,450 2021 303,943 2022 305,905 2023 292,005 2024 251,481 Thereafter 1,137,808 Total $ 2,363,592 The future minimum base rents in the table above excludes tenant reimbursements of operating expenses, amortization of adjustments for deferred rent receivables and the amortization of above/below-market lease intangibles. Lessee As of September 30, 2020, the Company leased three parcels of land located in Arizona under long-term ground leases with expiration dates of September 2102, December 2095, and September 2102 with no options to renew. The Company leases office space as part of conducting day-to-day The Company incurred operating lease costs of approximately $0.9 million, and $0.7 million for the three months ended September 30, 2020 and 2019, respectively, which are included in “Property Operating Expense” in the accompanying consolidated statement of operations. Total cash paid for amounts included in the measurement of operating lease liabilities was $0.4 million and $0.3 million for three months ended September 30, 2020 and 2019, respectively. The Company incurred operating lease costs of approximately $2.8 million, and $1.9 million for the nine months ended September 30, 2020 and 2019, respectively, which are included in “Property Operating Expense” in the accompanying consolidated statement of operations. Total cash paid for amounts included in the measurement of operating lease liabilities was $1.2 million and $0.8 million for the nine months ended September 30, 2020 and 2019, respectively. The following table sets forth the weighted-average for the lease term and the discount rate as of September 30, 2020: Lease Term and Discount Rate As of Weighted-average remaining lease term in years. 80.3 Weighted-average discount rate (1) 4.98 % (1) Because the rate implicit in each of the Company’s leases was not readily determinable, the Company used an incremental borrowing rate. In determining the Company’s incremental borrowing rate for each lease, the Company considered recent rates on secured borrowings, observable risk-free interest rates and credit spreads correlating to the Company’s creditworthiness, the impact of collateralization and the term of each of the Company’s lease agreements. Maturities of lease liabilities as of September 30, 2020 were as follows: As of Remaining 2020 $ 407 2021 1,632 2022 1,675 2023 1,741 2024 1,776 Thereafter 286,738 Total undiscounted lease payments 293,969 Less: imputed interest (248,483 ) Total lease liabilities $ 45,486	14. Operating Leases Lessor The Company leases commercial and industrial space to tenants primarily under non-cancelable The Company recognized $291.4 million, $247.4 million and $257.5 million of lease income related to operating lease payments for the year ended December 31, 2019, 2018 and 2017, respectively. The following table sets forth the undiscounted cash flows for future minimum base rents to be received under operating leases as of December 31, 2019. The Company’s current leases have expirations ranging from 2020 to 2044. As of December 31, 2019 2020 $ 288,579 2021 296,570 2022 298,582 2023 284,369 2024 248,114 Thereafter 1,089,718 Total $ 2,505,932 The future minimum base rents in the table above excludes tenant reimbursements of operating expenses, amortization of adjustments for deferred rent receivables and the amortization of above/below-market lease intangibles. Lessee As of December 31, 2019, the Company leased three parcels of land located in Arizona under long-term ground leases with expiration dates of September 2102, December 2095, and September 2102 with no options to renew. The Company leases office space as part of conducting day-to-day On January 1, 2019, the Company recognized ROU assets and lease liabilities for these leases on the Company’s consolidated balance sheets, and on a go-forward On March 1, 2019, the Company entered into an office lease located in Chicago, Illinois. The Company recorded a ROU asset of $0.6 million and a corresponding liability to the Company’s lease agreements (see Note 14 , Operating Leases, On September 20, 2019, the Company acquired the McKesson II property, and assumed a ground lease from the seller. The Company recorded a ROU asset of $16.3 million and a corresponding liability to the Company’s existing ground lease agreement. The Company incurred operating lease costs, which are included in “Property Operating Expense” in the accompanying consolidated statement of operations, of approximately $2.8 million, for the year ended December 31, 2019. Total cash paid for amounts included in the measurement of operating lease liabilities was $1.2 million for the years ended December 31, 2019. Lease Term and Discount Rate December 31, 2019 Weighted-average remaining lease term in years 80.9 Weighted-average discount rate (1) 4.98 % (1) Because the rate implicit in each of the Company’s leases was not readily determinable, the Company used incremental borrowing rate. In determining the Company’s incremental borrowing rate for each lease, the Company considered recent rates on secured borrowings, observable risk-free interest rates and credit spreads correlating to the Company’s creditworthiness, the impact of collateralization and the term of each of the Company’s lease agreements. Maturities of lease liabilities as of December 31, 2019 were as follows: December 31, 2019 2020 $ 1,629 2021 1,632 2022 1,675 2023 1,741 2024 1,776 Thereafter 286,739 Total undiscounted lease payments 295,192 Less imputed interest (250,172 ) Total lease liabilities $ 45,020 As the Company elected to apply the provisions of ASC 842 on a prospective basis, the following comparative period disclosure is being presented in accordance with ASC 840. The future minimum commitments under the Company’s ground leases as of December 31, 2018 were as follows: December 31, 2018 2019 $ 1,032 2020 1,032 2021 1,032 2022 1,072 2023 1,422 Thereafter 199,024 Total $ 204,614

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	13. Commitments and Contingencies Litigation From time to time, the Company may become subject to legal proceedings, claims and litigation arising in the ordinary course of business. The Company is not a party to any material legal proceedings, nor is the Company aware of any pending or threatened litigation that would have a material adverse effect on the Company’s business, operating results, cash flows or financial condition should such litigation be resolved unfavorably.	15. Commitments and Contingencies Litigation From time to time, the Company may become subject to legal proceedings, claims and litigation arising in the ordinary course of business. The Company is not a party to any material legal proceedings, nor is the Company aware of any pending or threatened litigation that would have a material adverse effect on the Company’s business, operating results, cash flows or financial condition should such litigation be resolved unfavorably.

Declaration of Distributions

Declaration of Distributions	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Declaration of Distributions [Abstract]
Declaration of Distributions	14. Declaration of Distributions On March 30, 2020, the Board elected to change from a quarterly to a monthly declaration of distributions commencing in April 2020 in order to give the Board maximum flexibility due to the review of a prior potential strategic transaction and to monitor and evaluate the situation related to the financial impact of COVID-19 COVID-19	16. Declaration of Distributions During the quarter ended December 31, 2019, the Company paid cash distributions in the amount of $0.001506849 per day, per Class E share, Class T share, Class S share, Class D share, Class I share, Class A share, Class AA share and Class AAA share of common stock and stock distributions in the amount of $0.000273973 worth of shares per day, per Class E share, Class T share, Class S share, Class D share, Class I share, Class A share, Class AA share and Class AAA share of common stock for stockholders of such classes as of the close of business on each day during the period from October 1, 2019 through December 31, 2019. Such distributions were paid on a monthly basis, on or about the first day of the month, for the month then-ended. On December 18, 2019, the Board declared cash distributions in the amount of $0.001502732 per day, subject to adjustments for class-specific expenses, per Class E share, Class T share, Class S share, Class D share, Class I share, Class A share, Class AA share and Class AAA share of common stock for stockholders of such classes as of the close of business on each day during the period from January 1, 2020 through March 31, 2020. The Board also declared a stock distribution at a monthly rate of $0.008333333 worth of shares per Class E share, Class T share, Class S share, Class D share, Class I share, Class A share, Class AA share and Class AAA share of common stock, $0.001 par value per share, (equivalent to a $0.10 per share annualized stock distribution), for stockholders of record at the close of business on February 3, 2020, March 2, 2020, and April 1, 2020. The Company will pay such stock distributions to each stockholder of record at such time after each record date as determined by the Company’s Chief Executive Officer.

Selected Quarterly Financial Da

Selected Quarterly Financial Data (Unaudited)	12 Months Ended
	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Selected Quarterly Financial Data (Unaudited)	17. Selected Quarterly Financial Data (Unaudited) Presented below is a summary of the unaudited quarterly financial information for the years ended December 31, 2019, and 2018: 2019 First Quarter Second Quarter Third Quarter Fourth Quarter Total revenue $ 76,485 $ 103,356 $ 97,435 $ 109,832 Income before other income and (expenses) $ 16,579 $ 37,634 $ 22,158 $ 1,891 Net income (loss) $ 8,656 $ 18,215 $ 12,216 $ (2,043 ) (1) Net income (loss) attributable to common stockholders $ 5,333 $ 14,208 $ 8,939 $ (3,693 ) (1) Net income (loss) attributable to common stockholders per share $ 0.03 $ 0.06 $ 0.04 $ (0.02 ) (1) 2018 First Quarter Second Quarter Third Quarter Fourth Quarter Total revenue (2) $ 80,399 $ 85,991 $ 85,041 $ 84,927 Income before other income and (expenses) $ 20,442 $ 20,808 $ 19,012 $ 17,716 Net income $ 6,641 $ 7,799 $ 4,329 $ 3,267 Net income attributable to common stockholders $ 6,319 $ 7,431 $ 2,854 $ 1,012 Net income attributable to common stockholders per share $ 0.04 $ 0.04 $ 0.02 $ 0.01 (1) Primarily the result of impairment charges on the Company’s real estate and investment in unconsolidated entities. See Note 4 & 5 , Real Estate and Investments, (2) Amounts were reclassified to conform to the current period presentation. See Note 2, Basis of Presentation and Summary of Significant Accounting Policies,

Subsequent Events

Subsequent Events	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Subsequent Events [Abstract]
Subsequent Events	15. Subsequent Events First Amendment to the Second Amended and Restated Credit Agreement On October 1, 2020, the Company entered into the first amendment to the Second Amended and Restated Credit Agreement (the “First Amendment”) which eliminates the requirement to obtain approval of the majority lenders, as defined in the Second Amended and Restated Credit Agreement, to enter into any merger which will result in an increase in total asset value of the Company by 25% or more; allowing for greater flexibility in the acquisition of assets or portfolios of assets. Cash Distributions On October 19, 2020, the Board declared cash distributions for the month of November 2020 of $0.000956284 per day ($0.35 per share annualized), subject to adjustments for class-specific expenses, per Class E share, Class T share, Class S share, Class D share, Class I share, Class A share, Class AA share and Class AAA share of common stock, for stockholders of record at the close of each business day for the period commencing on November 1, 2020 and ending on November 30, 2020. The Company will pay such distributions to each stockholder of record at such time in December 2020 as determined by the Company’s Chief Executive Officer. Agreement and Plan of Merger with Cole Office & Industrial REIT (CCIT II), Inc. On October 29, 2020, the Company GRT (Cardinal REIT Merger Sub), LLC, a Maryland limited liability company and a wholly owned subsidiary of the Company (“Cardinal Merger Sub”), the Current Operating Partnership, GRT OP (Cardinal New GP Sub), LLC, a Delaware limited liability company and a wholly owned subsidiary of the Current Operating Partnership (“New GP Sub”), GRT OP (Cardinal LP Merger Sub), LLC, a Delaware limited liability company and a wholly owned subsidiary of the Current Operating Partnership (“LP Merger Sub”), GRT OP (Cardinal OP Merger Sub), LLC, a Delaware limited liability company and a subsidiary of LP Merger Sub and New GP Sub (“OP Merger Sub” and, together with the Company, Cardinal Merger Sub, the Current Operating Partnership, New GP Sub and LP Merger Sub, the “GCEAR Parties”), Cole Office & Industrial REIT (CCIT II), Inc., a Maryland corporation (“CCIT II”), Cole Corporate Income Operating Partnership II, LP, a Delaware limited partnership and a wholly owned subsidiary of CCIT II (the “CCIT II Operating Partnership”), and CRI CCIT II LLC, a Delaware limited liability company and a wholly owned subsidiary of CCIT II (“CCIT II LP” and, together with CCIT II and the CCIT II Operating Partnership, the “CCIT II Parties”), entered into an Agreement and Plan of Merger (the “CCIT II Merger Agreement”). The combined company (the “Combined Company”) following the “CCIT II Mergers” (as such term is defined herein) will retain the name “Griffin Capital Essential Asset REIT, Inc.” The Combined Company, as of October 29, 2020, would have a total asset value of approximately $5.8 billion, and would own 125 properties in 26 states, consisting of approximately 31 million square feet. On a pro forma basis, as of June 30, 2020, the Combined Company portfolio will be approximately 90% leased, on a weighted average basis, with a remaining weighted average lease term of 7.4 years, approximately 58% of the net rent will come from properties leased to tenants and/or guarantors who have, or whose non-guarantor 12-month Prior to entering into the CCIT II Merger Agreement, CCIT II (a) terminated the Agreement and Plan of Merger, dated as of August 30, 2020, by and among CCIT II, CIM Real Estate Finance Trust, Inc. (“CMFT”), and Thor II Merger Sub, LLC, a wholly owned subsidiary of CMFT (as amended, the “CMFT Merger Agreement”), in accordance with Section 9.1(c)(ii) of the CMFT Merger Agreement, and (b) paid to CMFT the termination fee equal to $7.38 million in accordance with the CMFT Merger Agreement, and will pay to CMFT the amount of CMFT’s Expenses (as defined in the CMFT Merger Agreement), up to $3.69 million, required to be paid pursuant to the terms of the CMFT Merger Agreement (such amounts together, the “CMFT Termination Payment”). Subject to the terms and conditions of the CCIT II Merger Agreement, at the Closing (as defined in the CCIT II Merger Agreement) (i) CCIT II will merge with and into Cardinal Merger Sub (the “REIT Merger”), with Cardinal Merger Sub being the surviving entity, (ii) OP Merger Sub will merge with and into CCIT II Operating Partnership (the “CCIT II Partnership Merger”), with the CCIT II Operating Partnership being the surviving entity and (iii) CCIT II LP will merge with and into LP Merger Sub (the “LP Merger” and, together with the REIT Merger and the CCIT II Partnership Merger, the “CCIT II Mergers”) with LP Merger Sub being the surviving entity. At the effective time of the CCIT II Partnership Merger and subject to the terms and conditions of the CCIT II Merger Agreement, each issued and outstanding share of CCIT II’s Class A common stock, $0.01 par value per share (“CCIT II Class A Common Stock”), and Class T common stock, $0.01 par value per share (“CCIT II Class T Common Stock” and together with the CCIT II Class A Common Stock, “CCIT II Common Stock”), will be converted into the right to receive 1.392 shares of the Company’s Class E common stock, $0.001 par value per share (“Class E Common Stock”), subject to the treatment of fractional shares in accordance with the CCIT II Merger Agreement (the “REIT Merger Consideration”). At the effective time of the REIT Merger and subject to the terms and conditions of the CCIT II Merger Agreement, each issued and outstanding share of CCIT II Class A Common Stock granted under CCIT II’s 2018 Equity Incentive Plan, whether vested or unvested, will be cancelled in exchange for an amount equal to the REIT Merger Consideration. At the effective time of the CCIT II Partnership Merger and subject to the terms and conditions of the CCIT II Merger Agreement, (i) each issued and outstanding partnership unit of the CCIT II Operating Partnership (“CCIT II Operating Partnership Units”) held by CCIT II will be converted into the right to receive 1.392 shares of the Current Operating Partnership’s Class E units, subject to the treatment of fractional units in accordance with the CCIT II Merger Agreement, and CCIT II will be admitted as a limited partner of the Current Operating Partnership and (ii) each issued and outstanding CCIT II Operating Partnership Unit held by CCIT II LP will automatically be cancelled and cease to exist, and no consideration shall be paid, in connection with or as a consequence of the CCIT II Partnership Merger. At the effective time of the LP Merger and subject to the terms and conditions of the CCIT II Merger Agreement, all of the issued and outstanding limited liability company interests in CCIT II LP will automatically be cancelled and cease to exist, and no consideration shall be paid, in connection with or as a consequence of the LP Merger. For U.S. federal income tax purposes, it is intended that (i) the REIT Merger shall qualify as a “reorganization” under, and within the meaning of, Section 368(a) of the Internal Revenue Code of 1986, as amended (the “Code”), and the CCIT II Merger Agreement is intended to be adopted as a “plan of reorganization” for purposes of Sections 354 and 361 of the Code and (ii) the CCIT II Partnership Merger and the LP Merger together shall be treated as a contribution by CCIT II of all of its assets, subject to all of its liabilities, to the Current Operating Partnership in exchange for partnership interests of the Current Operating Partnership pursuant to Section 721 of the Code. The CCIT II Merger Agreement contains customary representations, warranties and covenants, including covenants relating to the conduct of the Company’s and CCIT II’s respective businesses during the period between the execution of the CCIT II Merger Agreement and the completion of the CCIT II Mergers, subject to certain exceptions. The CCIT II Merger Agreement also contains a representation and warranty on behalf of CCIT II that, prior to entering into the CCIT II Merger Agreement, CCIT II terminated the CMFT Merger Agreement (and paid CMFT the CMFT Termination Payment) and entered into the CCIT II Merger Agreement in compliance with the terms of the CMFT Merger Agreement. Pursuant to the terms of the CCIT II Merger Agreement, CCIT II and its subsidiaries and representatives may not solicit, provide information or enter into discussions concerning proposals relating to alternative business combination transactions, subject to certain limited exceptions set forth in the CCIT II Merger Agreement. The CCIT II Merger Agreement also provides that prior to the Stockholder Approval (as defined herein), CCIT II’s board of directors may, under specified circumstances, make an Adverse Recommendation Change (as defined in the CCIT II Merger Agreement), including withdrawing its recommendation of the REIT Merger, subject to complying with certain conditions set forth in the CCIT II Merger Agreement. The CCIT II Merger Agreement may be terminated under certain circumstances, including but not limited to, by either the Company or CCIT II if the Mergers have not been consummated on or before 11:59 p.m. New York time on May 30, 2021 (the “Outside Date”), if a final and non-appealable In addition, CCIT II may terminate the CCIT II Merger Agreement in order to enter into an “Alternative Acquisition Agreement” with respect to a “Superior Proposal” (each as defined in the CCIT II Merger Agreement) at any time prior to receipt by CCIT II of the Stockholder Approval pursuant to and subject to the terms and conditions of the CCIT II Merger Agreement. The Company may terminate the CCIT II Merger Agreement, in certain limited circumstances, prior to the receipt of the Stockholder Approval, including upon (i) an Adverse Recommendation Change, (ii) a tender offer or exchange offer that is commenced which CCIT II’s board of directors fails to recommend against or (iii) a breach by CCIT II, in any material respect, of its obligations under the no solicitation provisions set forth in the CCIT II Merger Agreement. If the CCIT II Merger Agreement is terminated because the CCIT II Mergers were not consummated before the Outside Date or because the Stockholder Approval was not obtained, and (i) an “Acquisition Proposal” (as defined in the CCIT II Merger Agreement) has been publicly announced or otherwise communicated to CCIT II’s stockholders prior to the Stockholders Meeting (as defined in the CCIT II Merger Agreement), and (ii) within 12 months after the date of such termination (A) CCIT II consummates or enters into an agreement (that is thereafter consummated) in respect of an Acquisition Proposal for 50% or more of CCIT II’s equity or assets or (B) the board of directors of CCIT II recommends or fails to recommend against an Acquisition Proposal structured as a tender or exchange offer for 50% or more of CCIT II’s equity and such Acquisition Proposal is actually consummated, then CCIT II must pay the Company a termination fee of $18.45 million and up to $3.69 million as reimbursement for the Company’s Expenses (as defined in the CCIT II Merger Agreement). If the CCIT II Merger Agreement is terminated in connection with CCIT II’s acceptance of a Superior Proposal or making an Adverse Recommendation Change, then CCIT II must pay to the Company a termination fee of $18.45 million and up to $3.69 million as reimbursement for the Company’s Expenses. If the CCIT II Merger Agreement is terminated because any breach of any representation or warranty or failure to perform or comply with any obligation, covenant or agreement on the part of any of the CCIT II Parties set forth in the CCIT II Merger Agreement has occurred that would cause any of the closing conditions not to be satisfied, then CCIT II must pay to the Company up to $3.69 million as reimbursement for the Company’s Expenses. If the CCIT II Merger Agreement is terminated because any breach of any representation or warranty or failure to perform or comply with any obligation, covenant or agreement on the part of any of the GCEAR Parties set forth in the CCIT II Merger Agreement has occurred that would cause any of the closing conditions not to be satisfied, then the Company must pay to CCIT II (i) an amount equal to the CMFT Termination Payment and (ii) $3.69 million as reimbursement for CCIT II’s Expenses. The obligation of each party to consummate the CCIT II Mergers is subject to a number of customary conditions, including receipt of the approval of the REIT Merger (and of an amendment to CCIT II’s charter that is required to consummate the REIT Merger) by holders of a majority of the outstanding shares of the CCIT II Common Stock entitled to vote thereon (the “Stockholder Approval”), delivery of certain documents and legal opinions, the truth and correctness of the representations and warranties of the parties (subject to the materiality standards contained in the CCIT II Merger Agreement), the effectiveness of the registration statement on Form S-4 The Company’s obligation to consummate the CCIT II Mergers is not subject to a financing condition. Until the effective time of the REIT Merger, each of the Company and CCIT II are permitted to declare and pay distributions in an amount less than or equal to an annual rate of five percent of its net asset value as of June 30, 2020, ratably over the calendar year. The CCIT II Merger Agreement provides that the Company’s board of directors will take such action as necessary to cause three (3) Independent Directors (as defined in the charters of each of CCIT II and the Company) serving as members of the board of directors of CCIT II to be elected to the Company’s board of directors effective as of the effective time of the REIT Merger to serve until the next annual meeting of stockholders of the Company. In connection with such next annual meeting of stockholders of the Company, the Nominating and Corporate Governance Committee of the Company will recommend to the Company’s board of directors at least one (1) of such CCIT directors for election to the Company’s board of directors at such annual meeting of stockholders. The foregoing description of the CCIT II Merger Agreement is only a summary, does not purport to be complete and is qualified in its entirety by reference to the full text of the CCIT II Merger Agreement, which was filed as Exhibit 2.1 to the Company’s Current Report on Form 8-K Termination Agreement Concurrently with the entry into the CCIT II Merger Agreement, the Company, CCIT II and Cole Corporate Income Management II, LLC (the “CCIT II Advisor”) entered into a letter agreement (the “Termination Agreement”). Pursuant to the Termination Agreement, the Advisory Agreement, dated as of August 27, 2013, by and between CCIT II and the CCIT II Advisor (as amended, the “CCIT II Advisory Agreement”) will be terminated upon consummation of the CCIT II Mergers. Pursuant to the Termination Agreement, (i) upon consummation of the CCIT II Mergers or (ii) termination of the CCIT II Advisory Agreement, if such termination occurs prior to the earlier of the consummation of the CCIT II Mergers and June 30, 2021, for certain reasons other than a material breach of the CCIT II Advisory Agreement by the CCIT II Advisor, CCIT II will pay the CCIT II Advisor the “Subordinated Performance Fee” (as defined in the CCIT II Advisory Agreement) in an amount equal to $26,688,591 and the “Disposition Fee” (as defined in the CCIT II Advisory Agreement) in an amount equal to $1.75 million. The Termination Agreement also provides that the CCIT II Advisor will not terminate the CCIT II Advisory Agreement with effect prior to the earlier of the consummation of the CCIT II Mergers and June 30, 2021, other than in the event of material breach of the CCIT II Advisory Agreement by CCIT II. In the event that the CCIT II Merger Agreement is terminated in accordance with its terms, the Termination Agreement will be automatically terminated. The foregoing description of the Termination Agreement is only a summary, does not purport to be complete and is qualified in its entirety by reference to the full text of the Termination Agreement, which was filed as Exhibit 10.1 to the Company’s Current Report on Form 8-K DRP Offering As of November 4, 2020, the Company had issued 32,707,229 shares of the Company’s common stock pursuant to the DRP offerings for approximately $315.8 million. COVID-19 Subsequent to September 30, 2020, the global and U.S. economies continue to be severely impacted by the COVID-19 COVID-19 COVID-19 COVID-19 • Proactively communicating with the Company’s tenants and property managers to ensure lines of communication remain open related to operations and safety protocols prior to and related to decisions to return to work in accordance with various jurisdictional guidelines; • Monitoring the near-term solvency and liquidity of the Company’s tenants and the extent to which the COVID-19 • Regularly communicating with KeyBank regarding availability under the Company’s Revolving Credit Facility, which affords the Company with substantial current liquidity; • Continuing to closely monitor the Company’s cash flow projections and actively updating its projections based upon current information, as well as testing for future contingencies; and • Continuing to evaluate a potential strategic transaction, as well as monitoring market opportunities that could enhance our long-term value and performance. The Company is currently working with certain tenants that have requested rent relief due to the impact of the COVID-19 COVID-19 COVID-19 COVID-19 10-Q that COVID-19 directly	18. Subsequent Events Offering Status As of February 27, 2020, the Company has issued 2,400,777 shares of the Company’s common stock, pursuant to the primary portion of the Follow-On As of February 27, 2020 , the Company had issued 31,171,505 shares of the Company’s common stock pursuant to the DRP offerings for approximately $302.0 million (includes historical amounts sold by EA-1 In connection with a potential strategic transaction, on February 26, 2020, the Company’s Board approved the temporary suspension of (i) the primary portion of the Company’s Follow-On Follow-On Acquisition of the Pepsi Bottling Ventures Property On February 5, 2020, the Company, through the Current Operating Partnership, acquired a 526,320 square-foot industrial property, fully occupied by Pepsi Bottling Ventures and located at 390 Business Park Drive, Winston-Salem, North Carolina. The purchase price for the property was approximately $34.9 million, as part of a 1031 exchange associated with the recent sale of a property located in West Jefferson, Ohio.

Schedule III Real Estate Assets

Schedule III Real Estate Assets and Accumulated Depreciation and Amortization	12 Months Ended
	Dec. 31, 2019
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation Disclosure [Abstract]
Schedule III Real Estate Assets and Accumulated Depreciation and Amortization	GRIFFIN CAPITAL ESSENTIAL ASSET REIT, INC. SCHEDULE III REAL ESTATE ASSETS AND ACCUMULATED DEPRECIATION AND AMORTIZATION (Dollars in thousands) Initial Cost to (2) Total Gross Carrying Amount at Life on Property Property ST Encumbrances (1) Land Building and Building and Land Building and Improvements (2) Total Accumulated Date of Date of Plainfield Office IL $ — $ 3,709 $ 22,209 $ 7,344 $ 3,709 $ 29,553 $ 33,262 $ 14,206 N/A 6/18/2009 5-40 years Renfro Industrial SC 12,816 1,400 18,182 2,012 1,400 20,194 21,594 8,757 N/A 6/18/2009 5-40 Emporia Partners Industrial KS 2,104 274 7,567 — 274 7,567 7,841 3,025 N/A 8/27/2010 5-40 AT&T Office WA 24,683 6,770 32,420 718 6,770 33,138 39,908 10,234 N/A 1/31/2012 5-40 Westinghouse Office PA 20,885 2,650 26,745 — 2,650 26,745 29,395 8,430 N/A 3/22/2012 5-40 TransDigm Industrial NJ 4,367 3,773 9,030 411 3,773 9,441 13,214 2,839 N/A 5/31/2012 5-40 Atrium II Office CO 9,019 2,600 13,500 8,087 2,600 21,587 24,187 6,393 N/A 6/29/2012 5-40 Zeller Plastik Industrial IL 8,543 2,674 13,229 651 2,674 13,880 16,554 3,710 N/A 11/8/2012 5-40 Northrop Grumman Office OH 10,324 1,300 16,188 39 1,300 16,227 17,527 6,542 N/A 11/13/2012 5-40 Health Net Office CA 12,815 4,182 18,072 324 4,182 18,396 22,578 7,730 N/A 12/18/2012 5-40 Comcast Office CO 14,105 (4) 3,146 22,826 1,593 3,146 24,419 27,565 9,578 N/A 1/11/2013 5-40 500 Rivertech Office WA — 3,000 9,000 6,982 3,000 15,982 18,982 4,920 N/A 2/15/2013 5-40 Schlumberger Office TX 28,735 2,800 47,752 829 2,800 48,581 51,381 11,624 N/A 5/1/2013 5-40 UTC Office NC 22,712 1,330 37,858 — 1,330 37,858 39,188 9,973 N/A 5/3/2013 5-40 Avnet Industrial AZ 18,984 1,860 31,481 47 1,860 31,528 33,388 7,341 N/A 5/29/2013 5-40 Cigna Office AZ 39,000 (4) 8,600 48,102 133 8,600 48,235 56,835 12,717 N/A 6/20/2013 5-40 Nokia Office IL — 7,697 21,843 — 7,697 21,843 29,540 4,894 N/A 8/13/2013 5-40 Verizon Office NJ 25,007 5,300 36,768 5,681 5,300 42,449 47,749 16,429 N/A 10/3/2013 5-40 Fox Head Office CA — 3,672 23,230 — 3,672 23,230 26,902 5,090 N/A 10/29/2013 5-40 2500 Windy Ridge Office GA — 5,000 50,227 17,824 5,000 68,051 73,051 14,882 N/A 11/5/2013 5-40 General Electric Office GA — 5,050 51,396 148 5,050 51,544 56,594 10,959 N/A 11/5/2013 5-40 Atlanta Wildwood Office GA — 4,241 23,414 5,445 4,241 28,859 33,100 9,008 N/A 11/5/2013 5-40 Community Insurance Office OH — 1,177 22,323 — 1,177 22,323 23,500 5,188 N/A 11/5/2013 5-40 Anthem Office OH — 850 8,892 175 850 9,067 9,917 2,808 N/A 11/5/2013 5-40 JPMorgan Chase Office OH — 5,500 39,000 586 5,500 39,586 45,086 9,696 N/A 11/5/2013 5-40 Sterling Commerce Center Office OH — 4,750 32,769 4,307 4,750 37,076 41,826 12,021 N/A 11/5/2013 5-40 Aetna. Office TX 36,199 (4) 3,000 12,330 624 3,000 12,954 15,954 4,518 N/A 11/5/2013 5-40 CHRISTUS Health Office TX — 1,950 46,922 357 1,950 47,279 49,229 13,580 N/A 11/5/2013 5-40 Roush Industries Office MI — 875 11,375 2,449 875 13,824 14,699 3,593 N/A 11/5/2013 5-40 Parkland Center Office WI — 3,100 26,348 10,825 3,100 37,173 40,273 16,544 N/A 11/5/2013 5-40 1200 Morris Office PA — 2,925 18,935 2,278 2,925 21,213 24,138 7,724 N/A 11/5/2013 5-40 United HealthCare Office MO — 2,920 23,510 6,764 2,920 30,274 33,194 7,431 N/A 11/5/2013 5-40 Intermec (Northpointe Corporate Center II) Office WA — 1,109 6,066 4,576 1,109 10,642 11,751 3,221 N/A 11/5/2013 5-40 Comcast (Northpointe Corporate Center I) Office WA 39,650 (4) 2,292 16,930 2,324 2,292 19,254 21,546 4,829 N/A 11/5/2013 5-40 Farmers Office KS — 2,750 17,106 816 2,750 17,922 20,672 5,366 N/A 12/27/2013 5-40 2200 Channahon Road Industrial IL — 6,000 46,511 (15,695 ) 3,537 33,279 36,816 14,276 N/A 1/7/2014 5-40 Digital Globe Office CO — 8,600 83,400 — 8,600 83,400 92,000 19,091 N/A 1/14/2014 5-40 Waste Management Office AZ — — 16,515 82 — 16,597 16,597 4,607 N/A 1/16/2014 5-40 — — — — — — — Wyndham Worldwide Office NJ — 6,200 91,153 1,171 6,200 92,324 98,524 16,350 N/A 4/23/2014 5-40 ACE Hardware Corporation HQ Office IL 22,750 (4) 6,900 33,945 — 6,900 33,945 40,845 7,392 N/A 4/24/2014 5-40 Equifax Office MO — 1,850 12,709 194 1,850 12,903 14,753 3,913 N/A 5/20/2014 5-40 American Express Office AZ — 15,000 45,893 375 15,000 46,268 61,268 18,300 N/A 5/22/2014 5-40 Circle Star Office CA — 22,789 68,950 4,231 22,789 73,181 95,970 22,758 N/A 5/28/2014 5-40 Vanguard Office NC — 2,230 31,062 — 2,230 31,062 33,292 7,152 N/A 6/19/2014 5-40 Parallon Office FL 7,120 1,000 16,772 — 1,000 16,772 17,772 3,828 N/A 6/25/2014 5-40 TW Telecom Office CO — 10,554 35,817 1,474 10,554 37,291 47,845 9,166 N/A 8/1/2014 5-40 Equifax II Office MO — 2,200 12,755 70 2,200 12,825 15,025 3,288 N/A 10/1/2014 5-40 Mason I Office OH — 4,777 18,489 — 4,777 18,489 23,266 2,380 N/A 11/7/2014 5-40 Wells Fargo. Office NC 26,975 (4) 2,150 40,806 46 2,150 40,852 43,002 8,128 N/A 12/15/2014 5-40 GE Aviation Office OH — 4,400 61,681 — 4,400 61,681 66,081 14,077 N/A 2/19/2015 5-40 Westgate III Office TX — 3,209 75,937 — 3,209 75,937 79,146 13,333 N/A 4/1/2015 5-40 2275 Cabot Drive Office IL — 2,788 16,200 53 2,788 16,253 19,041 6,276 N/A 6/10/2015 5-40 — — — — — — — Franklin Center Office MD — 6,989 46,875 1,386 6,989 48,261 55,250 8,403 N/A 6/10/2015 5-40 4650 Lakehurst Court Office OH — 2,943 22,651 808 2,943 23,459 26,402 6,781 N/A 6/10/2015 5-40 Miramar Office FL — 4,488 19,979 2,221 4,488 22,200 26,688 4,268 N/A 6/10/2015 5-40 Royal Ridge V Office TX 21,385 (4) 1,842 22,052 3,622 1,842 25,674 27,516 4,373 N/A 6/10/2015 5-40 Duke Bridges Office TX 27,475 (4) 8,239 51,395 7,458 8,239 58,853 67,092 9,221 N/A 6/10/2015 5-40 Houston Westway II Office TX — 3,961 78,668 507 3,961 79,175 83,136 17,452 N/A 6/10/2015 5-40 Houston Westway I Office TX — 6,540 30,703 (15,039 ) 3,382 18,822 22,204 6,104 N/A 6/10/2015 5-40 Atlanta Perimeter Office GA 69,461 (4) 8,382 96,718 679 8,382 97,397 105,779 25,393 N/A 6/10/2015 5-40 South Lake at Dulles Office VA — 9,666 74,098 2,814 9,666 76,912 86,578 15,410 N/A 6/10/2015 5-40 Four Parkway Office IL — 4,339 37,298 2,692 4,339 39,990 44,329 10,514 N/A 6/10/2015 5-40 Highway 94 Industrial MO 15,610 5,637 25,280 — 5,637 25,280 30,917 5,080 N/A 11/6/2015 5-40 Heritage III Office TX — 1,955 15,540 1,362 1,955 16,902 18,857 3,395 N/A 12/11/2015 5-40 Heritage IV Office TX — 2,330 26,376 — 2,330 26,376 28,706 5,328 N/A 12/11/2015 5-40 Samsonite Industrial FL 21,154 5,040 42,490 — 5,040 42,490 47,530 6,183 N/A 12/11/2015 5-40 Restoration Hardware Industrial CA 78,000 (4) 15,463 36,613 37,693 15,463 74,306 89,769 14,996 N/A 1/14/2016 5-40 HealthSpring Office TN 20,723 8,126 31,447 — 8,126 31,447 39,573 5,478 N/A 4/27/2016 5-40 LPL Office SC — 4,612 86,352 — 4,612 86,352 90,964 5,283 N/A 11/30/2017 5-40 LPL Office SC — 1,274 41,509 — 1,274 41,509 42,783 2,541 N/A 11/30/2017 5-40 Quaker Industrial FL — 5,433 55,341 — 5,433 55,341 60,774 3,060 N/A 3/13/2018 5-40 McKesson Office AZ — 312 69,760 — 312 69,760 70,072 6,252 N/A 4/10/2018 5-40 Shaw Industries Industrial GA — 5,465 57,116 — 5,465 57,116 62,581 2,957 N/A 5/3/2018 5-40 GEAR Entities Land WA — 1,584 — — 1,584 — 1,584 — N/A 3/17/2016 5-40 Owens Corning Industrial NC 3,300 867 4,418 555 867 4,973 5,840 200 N/A 5/1/2019 5-40 Westgate II Office TX 34,200 7,716 48,422 870 7,716 49,292 57,008 2,023 N/A 5/1/2019 5-40 Administrative Office of Pennsylvania Courts Office PA 6,070 1,246 9,626 498 1,246 10,124 11,370 390 N/A 5/1/2019 5-40 American Express Center Office AZ 54,900 10,595 82,098 3,109 10,595 85,207 95,802 3,962 0 5/1/2019 5-40 MGM Corporate Center Office NV 18,180 4,546 25,825 1,076 4,546 26,901 31,447 1,123 0 5/1/2019 5-40 American Showa Industrial OH 10,320 1,214 16,538 2,427 1,214 18,965 20,179 637 N/A 5/1/2019 5-40 Huntington Ingalls Industrial VA — 6,213 29,219 2,651 6,213 31,870 38,083 1,087 0 5/1/2019 5-40 Wyndham Office NJ — 9,677 71,316 1,742 9,677 73,058 82,735 2,276 N/A 5/1/2019 5-40 Exel Industrial OH — 978 14,137 2,568 978 16,705 17,683 778 N/A 5/1/2019 5-40 Morpho Detection Office MA — 2,006 10,270 484 2,006 10,754 12,760 406 N/A 5/1/2019 5-40 — — — — — — — Aetna Office AZ — 2,332 18,486 1,598 2,332 20,084 22,416 803 N/A 5/1/2019 5-40 Bank of America I Office CA — 5,737 22,479 1,318 5,737 23,797 29,534 1,332 N/A 5/1/2019 5-40 Bank of America II Office CA — 5,735 15,461 2,217 5,735 17,678 23,413 2,498 N/A 5/1/2019 5-40 Atlas Copco Office MI — 1,156 18,297 1,505 1,156 19,802 20,958 693 N/A 5/1/2019 5-40 Toshiba TEC Office NC — 1,916 36,374 2,423 1,916 38,797 40,713 1,301 N/A 5/1/2019 5-40 NETGEAR Office CA — 22,600 28,859 1,700 22,600 30,559 53,159 1,521 N/A 5/1/2019 5-40 Nike Office OR — 8,186 41,184 2,164 8,186 43,348 51,534 3,132 0 5/1/2019 5-40 Zebra Technologies Office IL — 5,927 58,688 1,234 5,927 59,922 65,849 2,472 N/A 5/1/2019 5-40 WABCO Industrial SC — 1,226 13,902 779 1,226 14,681 15,907 345 N/A 5/1/2019 5-40 IGT Office NV 45,300 (4) 5,673 67,610 2,021 5,673 69,631 75,304 1,804 0 5/1/2019 5-40 3M Industrial IL 43,600 (4) 5,802 75,758 6,391 5,802 82,149 87,951 1,759 N/A 5/1/2019 5-40 Amazon Industrial OH 61,500 (4) 4,773 95,475 11,546 4,773 107,021 111,794 2,725 N/A 5/1/2019 5-40 Zoetis Office NJ — 3,718 44,082 735 3,718 44,817 48,535 1,310 N/A 5/1/2019 5-40 Southern Company Office AL 99,600 (4) 7,794 157,724 1,457 7,794 159,181 166,975 3,051 N/A 5/1/2019 38 years Allstate Office CO — 3,109 13,096 553 3,109 13,649 16,758 487 N/A 5/1/2019 5-40 MISO Office IN — 3,725 25,848 971 3,725 26,819 30,544 831 N/A 5/1/2019 5-40 McKesson II Office AZ — — 36,959 4,681 — 41,640 41,640 561 N/A 9/20/2019 5-40 Others — — — 95 — 95 95 10 Total all properties (3) $ 1,017,571 $ 463,960 $ 3,622,552 $ 191,921 $ 458,339 $ 3,820,094 $ 4,278,433 $ 668,104 (1) Amount does not include the net loan valuation discount of $1.1 million related to the debt assumed in the Highway 94, Samsonite and HealthSpring, Owens Corning, Westgate II, AOPC, IPC/TRWC (AMEX), MGM, American Showa and BAML properties. (2) Building and improvements include tenant origination, absorption costs and construction in progress. (3) As of December 31, 2019, the aggregate cost of real estate the Company and consolidated subsidiaries own for federal income tax purposes was approximately $4.2 billion (unaudited). (4) The Bank of America Loan is secured by cross-collateralized and cross-defaulted first mortgage liens on the properties. Activity for the Year Ended December 31, 2019 2018 2017 Real estate facilities Balance at beginning of year $ 3,073,364 $ 2,869,328 $ 3,024,389 Acquisitions 1,305,998 193,430 133,747 Improvements 47,566 6,264 12,479 Construction-in-progress 3,874 20,619 1,752 Other adjustments — — (2,785 ) Impairment Write Down (30,734 ) — (2,352 ) Sale of real estate assets (121,635 ) (16,277 ) (297,902 ) Balance at end of year $ 4,278,433 $ 3,073,364 $ 2,869,328 Accumulated depreciation Balance at beginning of year $ 538,412 $ 426,752 $ 338,552 Depreciation and amortization expense 153,425 119,168 116,583 Less: Non-real (7,769 ) (3,584 ) (1,554 ) Less: Sale of real estate assets depreciation expense (15,964 ) (3,924 ) (26,829 ) Balance at end of year $ 668,104 $ 538,412 $ 426,752 Real estate facilities, net $ 3,610,329 $ 2,534,952 $ 2,442,576

Basis of Presentation and Sum_2

Basis of Presentation and Summary of Significant Accounting Policies (Policies)	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Accounting Policies [Abstract]
Basis of Accounting	The accompanying unaudited consolidated financial statements of the Company are prepared by management on the accrual basis of accounting and in accordance with generally accepted accounting principles in the United States (“GAAP”) for interim financial information as contained in the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”), and in conjunction with rules and regulations of the SEC. Certain information and footnote disclosures required for annual financial statements have been condensed or excluded pursuant to SEC rules and regulations. Accordingly, the unaudited consolidated financial statements do not include all of the information and footnotes required by GAAP for complete financial statements.
Principles of Consolidation and Consolidation Considerations	The consolidated financial statements of the Company include all accounts of the Company, the Current Operating Partnership, and its subsidiaries. Intercompany transactions are not shown on the consolidated statements. However, each property-owning entity is a wholly-owned subsidiary which is a special purpose entity (“SPE”), whose assets and credit are not available to satisfy the debts or obligations of any other entity, except to the extent required with respect to any co-borrower	Principles of Consolidation The Company’s financial statements, and the financial statements of the Current Operating Partnership, including its wholly-owned subsidiaries, are consolidated in the accompanying consolidated financial statements. The portion of these entities not wholly-owned by the Company is presented as noncontrolling interests. All significant intercompany accounts and transactions have been eliminated in consolidation. Consolidation Considerations Current accounting guidance provides a framework for identifying a variable interest entity (“VIE”) and determining when a company should include the assets, liabilities, noncontrolling interests, and results of activities of a VIE in its consolidated financial statements. In general, a VIE is an entity or other legal structure used to conduct activities or hold assets that either (1) has an insufficient amount of equity to carry out its principal activities without additional subordinated financial support, (2) has a group of equity owners that are unable to make significant decisions about its activities, or (3) has a group of equity owners that do not have the obligation to absorb losses or the right to receive returns generated by its operations. Generally, a VIE should be consolidated if a party with an ownership, contractual, or other financial interest in the VIE (a variable interest holder) has the power to direct the VIE’s most significant activities and the obligation to absorb losses or right to receive benefits of the VIE that could be significant to the VIE. A variable interest holder that consolidates the VIE is called the primary beneficiary. Upon consolidation, the primary beneficiary generally must initially record all of the VIE’s assets, liabilities, and noncontrolling interest at fair value and subsequently account for the VIE as if it were consolidated based on majority voting interest. See Note 5, Investments, .
Cash and Cash Equivalents		Cash and Cash Equivalents The Company considers all short-term, highly liquid investments that are readily convertible to cash with a maturity of three months or less at the time of purchase to be cash equivalents. Cash and cash equivalents may include cash and short-term investments. Short-term investments are stated at cost, which approximates fair value. There were no cash equivalents, nor were there restrictions on the use of the Company’s cash balance as of December 31, 2019 and 2018. The Company maintains its cash accounts with major financial institutions. The cash balances consist of business checking accounts. These accounts are insured by the Federal Deposit Insurance Corporation up to $250,000 at each institution. The Company has not experienced any losses with respect to cash balances in excess of government provided insurance. Management believes there was no significant concentration of credit risk with respect to these cash balances as of December 31, 2019.
Restricted Cash		Restricted Cash In conjunction with acquisitions of certain assets, as required by certain lease provisions or certain lenders in conjunction with an acquisition or debt financing, or credits received by the seller of certain assets, the Company assumed or funded reserves for specific property improvements and deferred maintenance, re-leasing
Real Estate Purchase Price Allocation		Real Estate Purchase Price Allocation The Company applies the provisions in ASC 805-10, Business Combinations “ 805-10”), 805-10 Acquired in-place in-place in-place non-cancelable in-place The aggregate relative fair value of in-place in-place in-place lease-up The determination of the relative fair values of the assets and liabilities acquired requires the use of significant assumptions about current market rental rates, rental growth rates, discount rates and other variables.
Depreciation and Amortization		Depreciation and Amortization The purchase price of real estate acquired and costs related to development, construction, and property improvements are capitalized. Repairs and maintenance costs include all costs that do not extend the useful life of the real estate asset and are expensed as incurred. The Company considers the period of future benefit of an asset to determine the appropriate useful life. The Company anticipates the estimated useful lives of its assets by class to be generally as follows: Buildings 25-40 Building Improvements 5-20 Land Improvements 15-25 Tenant Improvements Shorter of estimated useful life or remaining contractual lease term Tenant Origination and Absorption Cost Remaining contractual lease term In-place Remaining contractual lease term with consideration as to below-market extension options for below-market leases If a lease is terminated or amended prior to its scheduled expiration, the Company will accelerate/extend the remaining useful life of the unamortized lease-related costs.
Assets Held for Sale		Assets Held for Sale The Company accounts for properties held for sale in accordance with ASC 360, Property, Plant, and Equipment No. 2014-08, Presentation of Financial Statements and Property, Plant, and Equipment: Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity No. 2014-08”). No. 2014-08, In accordance with ASC 205, a component of an entity or a group of components of an entity, or a business or nonprofit activity (the entity to be sold) shall be classified as held for sale in the period in which all of the required criteria are met. In accordance with ASC 360, upon being classified as held for sale, a property is carried at the lower of (i) its carrying amount or (ii) fair value less costs to sell. In addition, a property being held for sale ceases to be depreciated.
Impairment of Real Estate and Related Intangible Assets		Impairment of Real Estate and Related Intangible Assets In accordance with the provisions of the Impairment or Disposal of Long-Lived Assets Subsections of ASC 360, the Company assess the carrying values of our respective long-lived assets, whenever events or changes in circumstances indicate that the carrying amounts of these assets may not be fully recoverable. Recoverability of real estate assets is measured by comparison of the carrying amount of the asset to the estimated future undiscounted cash flows. To review real estate assets for recoverability, the Company considers current market conditions as well as the Company’s intent with respect to holding or disposing of the asset. The intent with regard to the underlying assets might change as market conditions and other factors change. Fair value is determined through various valuation techniques, including discounted cash flow models, applying a capitalization rate to estimated net operating income of a property, quoted market values and third party appraisals, where considered necessary. The use of projected future cash flows is based on assumptions that are consistent with estimates of future expectations and the strategic plan used to manage the Company’s underlying business. If the Company analysis indicates that the carrying value of the real estate asset is not recoverable on an undiscounted cash flow basis, the Company will recognize an impairment charge for the amount by which the carrying value exceeds the current estimated fair value of the real estate property. Projections of expected future undiscounted cash flows require management to estimate future market rental income amounts subsequent to the expiration of current lease agreements, property operating expenses, discount rates, the number of months it takes to re-lease
Goodwill	Goodwill Goodwill represents the excess of consideration paid over the fair value of underlying identifiable net assets of business acquired. The Company’s goodwill has an indeterminate life and is not amortized, but is tested for impairment on an annual basis, or more frequently if events or changes in circumstances indicate that the asset might be impaired. The Company takes a qualitative approach to consider whether an impairment of goodwill exists prior to quantitatively determining the fair value of the reporting unit in step one of the impairment test. The Company performs its annual assessment on October 1st.	Goodwill Goodwill represents the excess of consideration paid over the fair value of underlying identifiable net assets of business acquired. The Company’s goodwill has an indeterminate life and is not amortized, but is tested for impairment on an annual basis, or more frequently if events or changes in circumstances indicate that the asset might be impaired. The Company takes a qualitative approach to consider whether an impairment of goodwill exists prior to quantitatively determining the fair value of the reporting unit in step one of the impairment test. The Company performs its annual assessment on October 1st. The Company did not record any impairment of goodwill during the year ended December 31, 2019.
Revenue Recognition		Revenue Recognition Leases associated with the acquisition and contribution of certain real estate assets have net minimum rent payment increases during the term of the lease and are recorded to rental revenue on a straight-line basis, commencing as of the contribution or acquisition date. If a lease provides for contingent rental income, the Company will defer the recognition of contingent rental income, such as percentage rents, until the specific target that triggers the contingent rental income is achieved. Tenant reimbursement revenue, which is comprised of additional amounts collected from tenants for the recovery of certain operating expenses, including repair and maintenance, property taxes (excluding taxes paid by a lessee directly to a third party on behalf of the lessor) and insurance, and capital expenditures, to the extent allowed pursuant to the lease (collectively, “Recoverable Expenses”), is recognized as revenue when the additional rent is due. Recoverable Expenses to be reimbursed by a tenant are determined based on the Company’s estimate of the property’s operating expenses for the year, pro rated based on leased square footage of the property, and are collected in equal installments as additional rent from the tenant, pursuant to the terms of the lease. At the end of each quarter, the Company reconciles the amount of additional rent paid by the tenant during the quarter to the actual amount of the Recoverable Expenses incurred by the Company for the same period. The difference, if any, is either charged or credited to the tenant pursuant to the provisions of the lease. In certain instances, the lease may restrict the amount the Company can recover from the tenant such as a cap on certain or all property operating expenses. In a situation in which a lease associated with a significant tenant has been, or is expected to be, terminated early, or extended, the Company evaluates the remaining useful life of amortizable assets in the asset group related to the lease that will be terminated (i.e., above- and below-market lease intangibles, in-place lease may write-off or
Derivative Instruments and Hedging Activities		Derivative Instruments and Hedging Activities ASC 815, Derivatives and Hedging As required by ASC 815, the Company recorded all derivatives on the consolidated balance sheet at fair value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, and whether the Company has elected to designate a derivative in a hedging relationship and apply hedge accounting and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. Derivatives designated and qualifying as a hedge of the exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges. Derivatives designated and qualifying as a hedge of the exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered cash flow hedges. Hedge accounting generally provides for the matching of the timing of gain or loss recognition on the hedging instrument with the recognition of the changes in the fair value of the hedged asset or liability that are attributable to the hedged risk in a fair value hedge or the earnings effect of the hedged forecasted transactions in a cash flow hedge. The Company may enter into derivative contracts that are intended to economically hedge certain risks, even though hedge accounting does not apply or the Company elects not to apply hedge accounting. See Note 7, Interest Rate Contracts
Income Taxes		Income Taxes The Company has elected to be taxed as a REIT under the Code. To qualify as a REIT, the Company must meet certain organizational and operational requirements. The Company intends to adhere to these requirements and maintain its REIT status for the current year and subsequent years. As a REIT, the Company generally will not be subject to federal income taxes on taxable income that is distributed to stockholders. However, the Company may be subject to certain state and local taxes on its income and property, and federal income and excise taxes on its undistributed taxable income, if any. If the Company fails to qualify as a REIT in any taxable year, the Company will then be subject to federal income taxes on the taxable income at regular corporate rates and will not be permitted to qualify for treatment as a REIT for federal income tax purposes for four years following the year during which qualification is lost unless the Internal Revenue Service (“IRS”) grants the Company relief under certain statutory provisions. Such an event could materially adversely affect net income and net cash available for distribution to stockholders. As of December 31, 2019, the Company satisfied the REIT requirements and distributed all of its taxable income. Pursuant to the Code, the Company has elected to treat its corporate subsidiary as a TRS. In general, the TRS may perform non-customary Investments
Use of Estimates	Use of Estimates The preparation of the unaudited consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the unaudited consolidated financial statements and accompanying notes. Actual results could materially differ from those estimates.	Use of Estimates The preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could materially differ from those estimates.
Per Share Data	Per Share Data The Company reports earnings per share for the period as (1) basic earnings per share computed by dividing net income (loss) attributable to common stockholders by the weighted average number of common shares outstanding during the period, and (2) diluted earnings per share computed by dividing net income (loss) attributable to common stockholders by the weighted average number of common shares outstanding, including common stock equivalents. As of September 30, 2020 and December 31, 2019, there were no material common stock equivalents that would have a dilutive effect on earnings (loss) per share for common stockholders. During the quarter ended September 30, 2020, the Company retroactively adjusted the number of common shares outstanding in accordance with ASC 260-10, 260-10”). 260-10	Per Share Data The Company reports earnings per share for the period as (1) basic earnings per share computed by dividing net income (loss) attributable to common stockholders by the weighted average number of common shares outstanding during the period, and (2) diluted earnings per share computed by dividing net income (loss) attributable to common stockholders by the weighted average number of common shares outstanding, including common stock equivalents. As of December 31, 2019 and December 31, 2018, there were no material common stock equivalents that would have a dilutive effect on earnings (loss) per share for common stockholders. During the year ended December 31, 2019, the Company retroactively adjusted the number of common shares outstanding in accordance with ASC 260-10, 260-10”). 260-10
Segment Information	Segment Information ASC 280, Segment Reporting, establishes standards for reporting financial and descriptive information about a public entity’s reportable segments. The Company internally evaluates all of the properties and interests therein as one reportable segment.	Segment Information ASC 280, Segment Reporting, establishes standards for reporting financial and descriptive information about a public entity’s reportable segments. The Company internally evaluates all of the properties and interests therein as one reportable segment.
Change in Consolidated Financial Statements Presentation		Change in Consolidated Financial Statements Presentation Certain amounts in the Company’s prior period consolidated financial statements have been reclassified to conform to the current period presentation. Recoverable state tax expenses have been reclassified from general and administrative expenses to property operating expenses on the statement of operations for all periods presented.
Unaudited Data		Unaudited Data Any references to the number of buildings, square footage, number of leases, occupancy, and any amounts derived from these values in the notes to the consolidated financial statements are unaudited and outside the scope of the Company’s independent registered public accounting firm’s audit of its consolidated financial statements in accordance with the standards of the Public Company Accounting Oversight Board (“PCAOB”).
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements Changes to GAAP are established by the FASB in the form of ASUs to the FASB’s Accounting Standards Codification. The Company considers the applicability and impact of all ASUs. Other than the ASUs discussed below, the FASB has not recently issued any other ASUs that the Company expects to be applicable and have a material impact on the Company’s financial statements. Adoption of New Accounting Pronouncements During the first quarter of 2020, the FASB issued ASU 2020-04, 2020-04 2020-04	Recently Issued Accounting Pronouncements Changes to GAAP are established by the FASB in the form of ASUs to the FASB’s Accounting Standards Codification. The Company consider the applicability and impact of all ASUs. Other than the ASUs discussed below, the FASB has not recently issued any other ASUs that the Company expect to be applicable and have a material impact on the Company’s financial statements. Adoption of New Accounting Pronouncements On February 25, 2016, the FASB issued ASU 2016-02, 2016-02”), 2016-02 2018-10, 2018-11, 2018-20, 2019-01, On January 1, 2019, the Company adopted ASC 842 using the modified retrospective approach and elected to apply the provisions as of the date of adoption on a prospective basis. Upon adoption of ASC 842, the Company elected the “package of practical expedients,” which allowed the Company to not reassess (a) whether expired or existing contracts as of January 1, 2019 are or contain leases, (b) the lease classification for any expired or existing leases as of January 1, 2019, and (c) the treatment of initial direct costs relating to any existing leases as of January 1, 2019. The package of practical expedients was made as a single election and was consistently applied to all leases that commenced before January 1, 2019. Lessor ASC 842 requires lessors to account for leases using an approach that is substantially equivalent to existing guidance for sales-type leases, direct financing leases, and operating leases. As the Company elected the package of practical expedients, the Company’s existing leases as of January 1, 2019 continue to be accounted for as operating leases. Upon adoption of ASC 842, the Company elected the practical expedient permitting lessors to elect by class of underlying asset to not separate nonlease components (for example, maintenance services, including common area maintenance) from associated lease components (the “non-separation non-lease non-separation Under ASC 842, lessors are required to record revenues and expenses on a gross basis for lessor costs (which include real estate taxes) when these costs are reimbursed by a lessee. Conversely, lessors are required to record revenues and expenses on a net basis for lessor costs when they are paid by a lessee directly to a third party on behalf of the lessor. Prior to the adoption of ASC 842, the Company recorded revenues and expenses on a gross basis for real estate taxes whether they were reimbursed to the Company by a tenant or paid directly by a tenant to the taxing authorities on the Company’s behalf. Effective January 1, 2019, the Company is recording these costs in accordance with ASC 842. Lessee ASC 842 requires lessees to recognize the following for all leases (with the exception of short-term leases) at the commencement date: (1) a lease liability, which is a lessee’s obligation to make lease payments arising from a lease, measured on a discounted basis; and (2) a right-of-use On January 1, 2019, the Company was the lessee on two ground leases, which were classified as operating leases under ASC 840. As the Company elected the packages of practical expedients, the Company is not required to reassess the classification of these existing leases and, as such, these leases continue to be accounted for as operating leases. In the event the Company modifies existing leases or enters into new leases in the future, such leases may be classified as finance leases. On January 1, 2019, the Company recognized ROU assets and lease liabilities for these leases on the Company’s consolidated balance sheets, and on a go-forward pre-existing On March 1, 2019. the Company entered into an office lease located in Chicago, Illinois. The Company recorded a ROU asset of $0.6 million and a corresponding liability to the Company’s lease agreements (see Note 14 , Operating Leases, On September 20, 2019, the Company acquired the McKesson II property (defined in Note 4 , Real Estate , Operating Leases, Upon adoption of ASC 842, the Company also elected the practical expedient to not separate non-lease Reclassification of the Prior Year Presentation of Rental Income and Property Expense Recovery As described below, rental income, termination income and property expense recovery related to the Company’s operating leases for which the Company is the lessor qualified for the single component practical expedient and was classified as rental income in the Company’s consolidated statements of operations. Prior to the adoption of the new lease accounting standard, the Company classified rental income, termination income and property expense recovery separately in the Company’s consolidated statements of operations, in accordance with the guidance in effect prior to January 1, 2019. Upon adoption of the new lease accounting standard, the Company’s comparative statements of operations from the prior period have been reclassified to conform to the new single component presentation of rental income, termination income and property expense recovery, classified within “Rental Income” in the Company’s consolidated statements of operations. The table below provides a reconciliation of the prior period presentation of the statement of operations line items that were reclassified in the Company’s consolidated statement of operations to conform to the current period presentation, pursuant to the adoption of the new lease accounting standard and election of the single component practical expedient (in thousands): Year Ended December 31, 2018 2017 Presentation prior to January 1, 2019 Lease income $ 247,442 $ 257,465 Lease termination income 15,671 14,604 Property expense recoveries 73,246 74,421 Rental income $ 336,359 $ 346,490

Basis of Presentation and Sum_3

Basis of Presentation and Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
Schedule of estimated useful lives of assets	The Company anticipates the estimated useful lives of its assets by class to be generally as follows: Buildings 25-40 Building Improvements 5-20 Land Improvements 15-25 Tenant Improvements Shorter of estimated useful life or remaining contractual lease term Tenant Origination and Absorption Cost Remaining contractual lease term In-place Remaining contractual lease term with consideration as to below-market extension options for below-market leases
Schedule of error corrections and prior period adjustments	The table below provides a reconciliation of the prior period presentation of the statement of operations line items that were reclassified in the Company’s consolidated statement of operations to conform to the current period presentation, pursuant to the adoption of the new lease accounting standard and election of the single component practical expedient (in thousands): Year Ended December 31, 2018 2017 Presentation prior to January 1, 2019 Lease income $ 247,442 $ 257,465 Lease termination income 15,671 14,604 Property expense recoveries 73,246 74,421 Rental income $ 336,359 $ 346,490

Self Administration Transacti_2

Self Administration Transaction (Tables)	12 Months Ended
	Dec. 31, 2019
Business Combinations [Abstract]
Schedule of Consideration Given to Acquire Membership Interest and Allocation of Purchase Price	Under the terms of the Self Administration Transaction, the following consideration was given in exchange for 100% of the membership interests in GRECO: Amount Fair value of EA-1 $ 205,000 Fair value of earn-outs 29,380 Accrued liabilities: Executive deferred compensation plan 7,795 Other liabilities 11,890 Total consideration 254,065 Less: accounts receivable from affiliates and other assets (19,878 ) Net consideration $ 234,187
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	During the nine months ended September 30, 2019, the Company finalized the purchase price allocation for the Self Administration Transaction. The following table summarizes the finalized purchase price allocation: Amount Assets: Accounts receivable from affiliates and other assets $ 19,878 Management contract intangibles 4,239 Goodwill 229,948 Total assets acquired 254,065 Liabilities: Earn-outs (due to affiliates) 29,380 Executive deferred compensation plan 7,795 Other liabilities 11,890 Total liabilities assumed 49,065 Net assets acquired $ 205,000
Schedule of Pro Forma Information	The following condensed pro forma operating information is presented as if the Self Administration Transaction occurred in 2018 and had been included in operations as of January 1, 2018. The pro forma operating information excludes certain nonrecurring adjustments, such as acquisition fees and expenses incurred, to reflect the pro forma impact the acquisition would have on earnings on a continuous basis: Year Ended Revenue $ 336,359 Net income $ 61,362 Net income attributable to noncontrolling interests $ 9,309 Net income attributable to common stockholders (1) $ 48,423 Net income attributable to common stockholders per share, basic and diluted $ 0.29 (1) Amount is net of net income (loss) attributable to noncontrolling interests, distributions to redeemable noncontrolling interests attributable to common stockholders and distributions to preferred shareholders.

Real Estate (Tables)

Real Estate (Tables)	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Real Estate [Abstract]
Schedule of Acquisition Purchase Price and Allocation	The purchase price and other acquisition items for the property acquired during the nine months ended September 30, 2020 are shown below: Property Location Tenant/Major Acquisition Purchase Square Feet Acquisition Fees Year of Lease Pepsi Bottling Ventures North Carolina PepsiCo 2/5/2020 $ 34,937 526,320 $ 386 2032	The purchase price and other acquisition items for the property acquired during the year ended December 31, 2019 are shown below: Property Location Tenant/Major Lessee Acquisition Purchase Approx. Acquisition (1) Year of McKesson II Scottsdale, AZ McKesson Corporation 9/20/2019 $ 37,674 124,900 $ 1,059 2029 (1) The former advisor received acquisition fees equal to 2.5%. In addition, the Company incurred third-party costs associated with the acquisition.
Schedule of Consideration Transferred		. Consideration transferred is calculated as such (in thousands except share and per share data): As of April 30, 2019 GCEAR’s common shares outstanding 78,054,934 Exchange ratio 1.04807 Implied EA-1 74,474,924 GCEAR’s operating partnership units outstanding 527,045 Exchange ratio 1.04807 Implied EA-1 502,872 EA-1’s $ 10.02 Total consideration $ 751,278
Schedule Of Asset Acquisition	The following table summarizes the purchase price allocation of the property acquired during the nine months ended September 30, 2020: Property Land Building Improvements Tenant In-place lease Debt discount / Total (1) Pepsi Bottling Ventures $ 3,407 $ 26,813 $ 954 $ 4,970 $ (712 ) $ (109 ) $ 35,323 (1) The allocations noted above are based on a determination of the relative fair value of the total consideration provided and represent the amount paid including capitalized acquisition costs.	The following table summarizes the final purchase price allocation based on a valuation report prepared by the Company’s third-party valuation specialist that was subject to management’s review and approval: As of April 30, 2019 Assets: Cash assumed $ 35,659 Land 135,875 Building and improvements 913,739 Tenant origination and absorption cost 214,428 Intangibles 3,627 Construction in progress 263 Other assets 5,964 Total assets 1,309,555 Liabilities: Debt (net of $1.1 million premium) 498,906 Below market leases 12,476 Due to Affiliates 8,804 Distribution payable 1,854 Restricted reserves 11,050 Accounts payable and other liabilities 14,849 Total liabilities 547,939 Fair value of net assets acquired 761,616 Less: EA-1’s 10,338 Fair value of net assets acquired, less EA-1’s $ 751,278 The following summarizes the purchase price allocations of the properties acquired during the year ended December 31, 2019: Acquisition Land Building Improvements Tenant In-place In-place Land Total (1) 2019 (2) Mergers $ 135,875 $ 850,811 $ 62,928 $ 214,428 $ 3,627 $ (12,476 ) $ — $ 1,255,193 $ 66,004 McKesson II (3) $ — $ 25,446 $ 4,681 $ 11,513 $ 239 $ — $ (3,072 ) $ 38,807 $ 958 (1) The allocations noted above are based on a determination of the relative fair value of the total consideration provided and represent the amount paid including capitalized acquisition costs. (2) The operating results of the properties acquired have been included in the Company’s consolidated statement of operations since the acquisition date. (3) The Company recorded a ROU asset of $16.3 million and a corresponding liability to the Company’s existing ground lease agreements as part of the acquisition (see Note 14, Operating Leases, for details
Schedule of Merger Related Costs Incurred		The following is a breakdown of the Company’s costs incurred during the year ended December 31, 2019 related to the Mergers: Amount Advisory and valuation fees $ 8,592 Legal, accounting and tax fees 1,384 Other fees 362 Total Merger-related fees $ 10,338
Schedule of Company's Intangibles	The Company allocated a portion of the acquired and contributed real estate asset value to in-place write-off September 30, 2020 December 31, 2019 In-place $ 43,605 $ 44,012 In-place (35,024 ) (33,322 ) In-place $ 8,581 $ 10,690 Ground leasehold interest (below market) 2,254 2,254 Ground leasehold interest (below market) - accumulated amortization (184 ) (164 ) Ground leasehold interest (below market), net 2,070 2,090 Intangible assets, net $ 10,651 $ 12,780 In-place $ (68,334 ) $ (67,622 ) Land leasehold interest (above market) (3,073 ) (3,073 ) In-place 42,859 38,890 Intangible liabilities, net $ (28,548 ) $ (31,805 ) Tenant origination and absorption cost $ 745,039 $ 744,773 Tenant origination and absorption cost - accumulated amortization (399,005 ) (354,379 ) Tenant origination and absorption cost, net $ 346,034 $ 390,394	The following summarizes a list of the Company’s intangibles as of December 31, 2019 and 2018: December 31, 2019 2018 In-place $ 44,012 $ 42,736 In-place (33,322 ) (31,995 ) In-place 10,690 10,741 Ground leasehold interest (below market) 2,254 2,255 Ground leasehold interest (below market) — accumulated amortization (164 ) (137 ) Ground leasehold interest (below market), net 2,090 2,118 Intangibles — other — 4,240 Intangible assets, net $ 12,780 $ 17,099 In-place $ (67,622 ) $ (55,147 ) Land Leasehold interest (above market) (3,073 ) — In-place 38,890 32,032 Intangible liabilities, net $ (31,805 ) $ (23,115 ) Tenant origination and absorption cost $ 744,773 $ 530,181 Tenant origination and absorption cost — accumulated amortization (354,379 ) (296,201 ) Tenant origination and absorption cost, net $ 390,394 $ 233,980 The following table sets forth the estimated annual amortization (income) expense for in-place Year In-place lease valuation, net Tenant origination and Ground leasehold Other leasing costs 2020 $ (2,150 ) $ 64,739 $ (291 ) $ 4,911 2021 $ (2,066 ) $ 57,151 $ (290 ) $ 5,668 2022 $ (2,467 ) $ 54,050 $ (290 ) $ 5,673 2023 $ (2,415 ) $ 49,246 $ (290 ) $ 5,571 2024 $ (1,593 ) $ 41,479 $ (291 ) $ 5,533
Schedule of Estimated Annual Amortization (Income) Expense	The following table sets forth the estimated annual amortization (income) expense for in-place Year In-place lease valuation, Tenant origination and Ground leasehold Other leasing costs Remaining 2020 $ (525 ) $ 14,870 $ (73 ) $ 1,372 2021 $ (2,118 ) $ 57,846 $ (290 ) $ 6,057 2022 $ (2,518 ) $ 54,744 $ (290 ) $ 6,063 2023 $ (2,465 ) $ 50,184 $ (290 ) $ 5,934 2024 $ (1,648 ) $ 38,006 $ (291 ) $ 5,700 2025 $ (1,186 ) $ 27,450 $ (290 ) $ 5,580	The amortization of the intangible assets and other leasing costs for the respective periods is as follows: Amortization (income) 2019 2018 2017 Above and below market leases, net $ (3,201 ) $ (685 ) $ 1,689 Tenant origination and absorption cost $ 69,502 $ 55,464 $ 59,046 Ground leasehold amortization (below market) $ (52 ) $ 27 $ 27 Other leasing costs amortization $ 3,581 $ 3,557 $ 1,527
Restrictions on Cash	Additionally, an ongoing replacement reserve is funded by certain tenants pursuant to each tenant’s respective lease as follows: Balance as of September 30, 2020 December 31, 2019 Cash reserves $ 22,909 $ 48,129 Restricted lockbox 12,922 10,301 Total $ 35,831 $ 58,430	Additionally, an ongoing replacement reserve is funded by certain tenants pursuant to each tenant’s respective lease as follows: December 31, 2019 2018 Cash reserves (1) $ 48,129 $ 12,945 Restricted Lockbox 10,301 2,862 Total $ 58,430 $ 15,807 (1) Approximately $28.7 million is held in escrow pending a tax-deferred

Investments (Tables)

Investments (Tables)	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Equity Method Investments and Joint Ventures [Abstract]
Company's share of net earnings or losses and reduced by distributions	As of September 30, 2020, the balance of the investments are shown below: Digital Realty Heritage Total Balance as of December 31, 2019 $ 10,584 $ 444 $ 11,028 Net loss (165 ) — (165 ) Distributions (8,120 ) (410 ) (8,530 ) Contributions 8,160 — 8,160 Valuation adjustment (1) (4,452 ) — (4,452 ) Impairment (1,907 ) — (1,907 ) Clawback receivable reclass (2) (4,100 ) — (4,100 ) Balance as of September 30, 2020 $ — $ 34 $ 34 (1) Amount represents a charge to arrive at the net realizable value as of September 30, 2020, which is included in the line item “(Loss) Gain from investment in unconsolidated entities” in the consolidated statement of operations. (2) Amount represents a reclass of the clawback to other assets as disclosed above.	As of December 31, 2019, the balance of the investments are shown below: Digital Realty Heritage Total Balance as of December 31, 2018 $ 27,291 $ 3,274 $ 30,565 Net (loss) income (2,509 ) 4,128 (1) 1,619 Distributions (7,055 ) (6,958 ) (14,013 ) Other comprehensive loss (217 ) — (217 ) Impairment (6,926 ) — (6,926 ) Balance as of December 31, 2019 $ 10,584 $ 444 $ 11,028 (1) Includes approximately $0.6 million in disposition and other fees owed to the Company’s former advisor. In addition, approximately $1.2 million of third party fees and taxes were incurred as part of the outside basis of the investment

Debt (Tables)

Debt (Tables)	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Debt Disclosure [Abstract]
Schedule of Debt	As of September 30, 2020 and December 31, 2019, the Company’s debt consisted of the following: September 30, December 31, Contractual Interest Rate (1) Loan Effective (2) HealthSpring Mortgage Loan $ 20,340 $ 20,723 4.18% April 2023 4.62 % Midland Mortgage Loan 98,687 100,249 3.94% April 2023 4.12 % Emporia Partners Mortgage Loan 1,749 2,104 5.88% September 2023 5.97 % Samsonite Loan 20,418 21,154 6.08% September 2023 5.10 % Highway 94 Loan 14,922 15,610 3.75% August 2024 4.78 % Pepsi Bottling Ventures Loan 18,677 — 3.69% October 2024 3.92 % AIG Loan II 126,970 126,970 4.15% November 2025 4.93 % BOA Loan 375,000 375,000 3.77% October 2027 3.91 % BOA/KeyBank Loan 250,000 250,000 4.32% May 2028 4.14 % AIG Loan 104,352 105,762 4.96% February 2029 5.08 % Total Mortgage Debt 1,031,115 1,017,572 Revolving Credit Facility (3) 401,500 211,500 LIBO Rate + 1.60% June 2023 1.88 % 2023 Term Loan 200,000 200,000 LIBO Rate + 1.55% June 2023 1.80 % 2024 Term Loan 400,000 400,000 LIBO Rate + 1.55% April 2024 1.79 % 2026 Term Loan 150,000 150,000 LIBO Rate + 1.85% April 2026 2.06 % Total Debt 2,182,615 1,979,072 Unamortized Deferred Financing Costs and Discounts, net (8,263 ) (9,968 ) Total Debt, net $ 2,174,352 $ 1,969,104 (1) Including the effect of the interest rate swap agreements with a total notional amount of $750.0 million, the weighted average interest rate as of September 30, 2020 was 3.56% for both the Company’s fixed-rate and variable-rate debt combined and 3.96% for the Company’s fixed-rate debt only. (2) Reflects the effective interest rate as of September 30, 2020 and includes the effect of amortization of discounts/premiums and deferred financing costs. (3) The LIBO rate as of September 1, 2020 (effective date) was 0.16%. The Revolving Credit Facility has an initial term of approximately two years, maturing on June 28, 2022, and may be extended for a one-year	As of December 31, 2019 and December 31, 2018, the Company’s debt consisted of the following: December 31, Contractual Interest Rate (1) Loan Effective (2) 2019 2018 HealthSpring Mortgage Loan $ 20,723 $ 21,219 4.18 % April 2023 4.61 % Midland Mortgage Loan 100,249 102,262 3.94 % April 2023 4.10 % Emporia Partners Mortgage Loan 2,104 2,554 5.88 % September 2023 5.98 % Samsonite 21,154 22,085 6.08 % September 2023 5.14 % Highway 94 loan 15,610 16,497 3.75 % August 2024 4.73 % AIG Loan II 126,970 — 4.15 % November 2025 4.91 % BOA Loan 375,000 375,000 3.77 % October 2027 3.92 % BOA/KeyBank Loan 250,000 — 4.32 % May 2028 4.16 % AIG Loan 105,762 107,562 4.96 % February 2029 5.08 % Total Mortgage Debt 1,017,572 647,179 2023 Term Loan 200,000 — LIBO Rate +1.40 % June 2023 3.28 % 2024 Term Loan 400,000 — LIBO Rate +1.40 % April 2024 3.27 % 2026 Term Loan 150,000 — LIBO Rate +1.75 % April 2026 3.59 % Revolving Credit Facility (4) 211,500 — LIBO Rate +1.45 % June 2023 (4) 3.35 % Term Loan — 715,000 (3) — — — Total Debt 1,979,072 1,362,179 Unamortized Deferred Financing Costs and Discounts, net (9,968 ) (8,648 ) Total Debt, net $ 1,969,104 $ 1,353,531 (1) Including the effect of one interest rate swap agreement with a total notional amount of $425.0 million, the weighted average interest rate as of December 31, 2019 was 3.72% for both the Company’s fixed-rate and variable-rate debt combined and 3.89% for the Company’s fixed-rate debt only. (2) Reflects the effective interest rate as of December 31, 2019 and includes the effect of amortization of discounts/premiums and deferred financing costs. (3) Represents the Company’s Term Loan (defined below), which was fully repaid on May 1, 2019. See discussion below. (4) The LIBO rate as of December 31, 2019 was 1.69%. The Revolving Credit Facility has an initial term of approximately three years, maturing on June 28, 2022, and may be extended for a one-year
Summary of future principal repayments of all loans		The following summarizes the future principal repayments of all loans as As of December 31, 2019 2020 $ 6,882 2021 9,390 2022 9,826 2023 337,019 2024 439,302 Thereafter 1,176,653 Total principal 1,979,072 Unamortized debt premium/(discount) (1,099 ) Unamortized deferred loan costs (8,869 ) Total $ 1,969,104

Interest Rate Contracts (Tables

Interest Rate Contracts (Tables)	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Summary of Interest Rate Swaps	The following table sets forth a summary of the interest rate swaps at September 30, 2020 and December 31, 2019: Effective Maturity Interest Fair Value (1) Current Notional Amounts Derivative Instrument September 30, December 31, September 30, December 31, Liabilities: Interest Rate Swap 3/10/2020 7/1/2025 0.83 % $ (3,374 ) $ — $ 150,000 $ — Interest Rate Swap 3/10/2020 7/1/2025 0.84 % (2,300 ) — 100,000 — Interest Rate Swap 3/10/2020 7/1/2025 0.86 % (1,791 ) — 75,000 — Interest Rate Swap 7/1/2020 7/1/2025 2.82 % (15,064 ) (7,038 ) 125,000 125,000 Interest Rate Swap 7/1/2020 7/1/2025 2.82 % (12,074 ) (5,651 ) 100,000 100,000 Interest Rate Swap 7/1/2020 7/1/2025 2.83 % (12,084 ) (5,665 ) 100,000 100,000 Interest Rate Swap 7/1/2020 7/1/2025 2.84 % (12,165 ) (5,749 ) 100,000 100,000 Interest Rate Swap 7/9/2015 7/1/2020 1.69 % — (43 ) — 425,000 Total $ (58,852 ) $ (24,146 ) $ 750,000 $ 850,000 (1) The Company records all derivative instruments on a gross basis in the consolidated balance sheets, and accordingly, there are no offsetting amounts that net assets against liabilities. As of September 30, 2020, derivatives in a liability position are included in the line item “Interest rate swap liability” in the consolidated balance sheets at fair value.	The following table sets forth a summary of the interest rate swaps at December 31, 2019 and 2018: Fair Value (1) Current Notional Amount December 31, December 31, Derivative Instrument Effective Maturity Interest 2019 2018 2019 2018 Assets/(Liabilities): Interest Rate Swap 7/9/2015 7/1/2020 1.69 % $ (43 ) $ 5,245 $ 425,000 $ 425,000 Interest Rate Swap 7/1/2020 7/1/2025 2.82 % (7,038 ) (1,987 ) 125,000 125,000 Interest Rate Swap 7/1/2020 7/1/2025 2.82 % (5,651 ) (1,628 ) 100,000 100,000 Interest Rate Swap 7/1/2020 7/1/2025 2.83 % (5,665 ) (1,636 ) 100,000 100,000 Interest Rate Swap 7/1/2020 7/1/2025 2.84 % (5,749 ) (1,711 ) 100,000 100,000 Total $ (24,146 ) $ (1,717 ) $ 850,000 $ 850,000 (1) The Company records all derivative instruments on a gross basis in the consolidated balance sheets, and accordingly there are no offsetting amounts that net assets against liabilities. As of December 31, 2019, derivatives in a liability position are included in the line item “Interest rate swap liability,” respectively, in the consolidated balance sheets at fair value.
Derivative Instruments, Gain (Loss)	The following table sets forth the impact of the interest rate swaps on the consolidated statements of operations for the periods presented: Nine Months Ended 2020 2019 Interest Rate Swap in Cash Flow Hedging Relationship: Amount recognized in AOCI on derivatives $ (39,716 ) $ (25,849 ) Amount of loss (gain) reclassified from AOCI into earnings under “Interest expense” $ 5,104 $ (2,231 ) Total interest expense presented in the consolidated statement of operations in which the effects of cash flow hedges are recorded $ 59,321 $ 53,642	The following table sets forth the impact of the interest rate swaps on the consolidated statements of operations for the periods presented: Year Ended December 31, 2019 2018 Interest Rate Swap in Cash Flow Hedging Relationship: Amount of (loss) gain recognized in AOCI on derivatives $ (19,944 ) $ (3,483 ) Amount of (gain) loss reclassified from AOCI into earnings under “Interest expense” $ (2,359 ) $ (1,818 ) Total interest expense presented in the consolidated statement of operations in which the effects of cash flow hedges are recorded $ 73,557 $ 55,194

Accrued Expenses and Other Li_2

Accrued Expenses and Other Liabilities (Tables)	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Payables and Accruals [Abstract]
Schedule of Accrued Expenses and Other Liabilities	Accrued expenses and other liabilities consisted of the following as of September 30, 2020 and December 31, 2019: September 30, December 31, Accrued tenant improvements $ 26,891 $ 11,802 Real estate taxes payable 18,899 13,385 Prepaid tenant rent 17,429 20,510 Interest payable 10,011 12,264 Deferred compensation 8,687 9,209 Property operating expense payable 7,667 7,752 Accrued CIP 6,902 4,794 Other liabilities 21,771 16,673 Total $ 118,257 $ 96,389	Accrued expenses and other liabilities consisted of the following as of December 31, 2019 and 2018: December 31, 2019 2018 Real estate taxes payable $ 13,385 $ 23,258 Prepaid tenant rent 20,510 15,204 Deferred compensation 9,209 — Interest payable 12,264 9,310 Property operating expense payable 7,752 9,159 Accrued CIP 16,596 4,662 Other liabilities 16,673 19,023 Total $ 96,389 $ 80,616

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Schedule of Assets and Liabilities Measure at Fair Value on a Recurring Basis	The following table sets forth the assets and liabilities that the Company measures at fair value on a recurring basis by level within the fair value hierarchy as of September 30, 2020 and December 31, 2019: Assets/(Liabilities) Total Fair Quoted Prices Significant Significant September 30, 2020 Interest Rate Swap Liability $ (58,852 ) $ — $ (58,852 ) $ — Corporate Owned Life Insurance Asset $ 4,070 $ — $ 4,070 $ — Mutual Funds Asset $ 6,054 $ 6,054 $ — $ — Deferred Compensation Liability $ (8,687 ) $ — $ (8,687 ) $ — December 31, 2019 Interest Rate Swap Liability $ (24,146 ) $ — $ (24,146 ) $ — Earn-out $ (2,919 ) $ — $ — $ (2,919 ) Corporate Owned Life Insurance Asset $ 2,134 $ — $ 2,134 $ — Mutual Funds Asset $ 6,983 $ 6,983 $ — $ — Deferred Compensation Liability $ (9,209 ) $ — $ (9,209 ) $ —	The following tables set forth the assets and liabilities that the Company measures at fair value on a recurring basis by level within the fair value hierarchy as of December 31, 2019 and 2018: Assets/(Liabilities) Total Fair Quoted Prices in Active Significant Other Significant December 31, 2019 Interest Rate Swap Liability $ (24,146 ) $ — $ (24,146 ) $ — Earn-out $ (2,919 ) $ — $ — $ (2,919 ) Corporate Owned Life Insurance Asset $ 2,134 $ — $ 2,134 $ — Mutual Funds Asset $ 6,983 $ 6,983 $ — $ — Deferred Compensation Liability $ (9,209 ) $ — $ (9,209 ) $ — December 31, 2018 Interest Rate Swap Asset $ 5,245 $ — $ 5,245 $ — Interest Rate Swap Liability $ (6,962 ) $ — $ (6,962 ) $ — Earn-out $ (29,380 ) $ — $ — $ (29,380 )
Quantitative Information Related to Non-recurring Fair Value Measurements for Impairment	The following table is a summary of the quantitative information related to the non-recurring Range of Inputs or Inputs Unobservable Inputs: 2200 Channahon Road Houston Westway I 2275 Cabot Drive Market rent per square foot $2.00 to $3.00 $15.00 to $17.00 $11.00 to $12.00 Terminal capitalization rate 9.75% 7.75% 9.00% Discount rate 14.00% 9.00% 10.25%	The following table is a summary of the quantitative information related to the non-recurring Range of Inputs or Inputs December 31, 2019 Unobservable Inputs 2200 Channahon Road Houston Westway I Market rent per square foot $ 2.00 to $3.00 $ 15.00 to $17.00 Terminal capitalization rate 9.25 % 7.75 % Discount rate 10.50 % 9.00 % non-recurring Range of Inputs or Inputs Unobservable Inputs December 31, 2019 Market rent per kilowatt-hour (kWh) $ 80.00 to $90.00 Terminal capitalization rate 6.00 % Discount rate 6.75 %
Schedule of Carrying Values and Estimated Fair Values of Financial Instruments	The fair value of the ten mortgage loans in the table below is estimated by discounting each loan’s principal balance over the remaining term of the mortgage using current borrowing rates available to the Company for debt instruments with similar terms and maturities. The Company determined that the mortgage debt valuation in its entirety is classified in Level 2 of the fair value hierarchy, as the fair value is based on current pricing for debt with similar terms as the in-place September 30, 2020 December 31, 2019 Fair Value Carrying Value (1) Fair Value Carrying Value (1) BOA Loan $ 357,417 $ 375,000 $ 369,343 $ 375,000 BOA/KeyBank Loan $ 263,840 $ 250,000 $ 264,101 $ 250,000 AIG Loan II $ 120,651 $ 126,970 $ 122,258 $ 126,970 AIG Loan $ 103,110 $ 104,352 $ 101,663 $ 105,762 Midland Mortgage Loan $ 98,077 $ 98,687 $ 99,318 $ 100,249 Samsonite Loan $ 21,418 $ 20,418 $ 22,103 $ 21,154 HealthSpring Mortgage Loan $ 20,621 $ 20,340 $ 20,868 $ 20,723 Pepsi Bottling Ventures Loan $ 19,054 $ 18,677 $ — $ — Highway 94 Loan $ 14,663 $ 14,922 $ 15,101 $ 15,610 Emporia Partners Mortgage Loan $ 1,780 $ 1,749 $ 2,105 $ 2,104 (1) The carrying values do not include the debt premium/(discount) or deferred financing costs as of September 30, 2020 and December 31, 2019. See Note 5, Debt	The Company determined that the mortgage debt valuation in its entirety is classified in Level 2 of the fair value hierarchy, as the fair value is based on current pricing for debt with similar terms as the in-place December 31, 2019 December 31, 2018 Fair Value Carrying Value (1) Fair Value Carrying Value (1) Samsonite $ 22,103 $ 21,154 $ 22,440 $ 22,085 Highway 94 loan $ 15,101 $ 15,610 $ 15,601 $ 16,497 AIG Loan II $ 122,258 $ 126,970 $ — $ — BOA/KeyBank Loan $ 264,101 $ 250,000 $ — $ — AIG Loan $ 101,663 $ 105,762 $ 108,032 $ 107,562 (1) The carrying values do not include the debt premium/(discount) or deferred financing costs as of December 31, 2019 and December 31, 2018. See Note 6, Debt

Equity (Tables)

Equity (Tables)	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Equity [Abstract]
Schedule of Stock Redemption Activity	The following table summarizes share redemption (excluding the self-tender offer) activity during the three and nine months ended September 30, 2020 and 2019: Three Months Ended Nine Months Ended 2020 2019 2020 2019 Shares of common stock redeemed 693,199 10,589,361 1,241,812 10,589,361 Weighted average price per share $ 8.86 $ 9.54 $ 9.07 $ 9.54	The following table summarizes share redemption (excluding the self-tender offer) activity during the years ended December 31, 2019 and 2018: December 31, 2019 2018 Shares of common stock redeemed 20,933,322 8,695,600 Weighted average price per share $ 9.44 $ 9.61
Schedule of Distributions Paid		The following unaudited table summarizes the federal income tax treatment for all distributions per share for the years ended December 31, 2019, 2018, and 2017 reported for federal tax purposes and serves as a designation of capital gain distributions, if applicable, pursuant to Internal Revenue Code Section 857(b)(3)(C) and Treasury Regulation §1.857-6(e). Year Ended December 31, 2019 2018 2017 Ordinary income $ 0.22 37 % $ 0.32 47 % $ 0.40 59 % Capital gain 0.08 13 % — — % 0.18 26 % Return of capital 0.30 50 % 0.36 53 % 0.10 15 % Total distributions paid $ 0.60 100 % $ 0.68 100 % $ 0.68 100 %

Noncontrolling Interests (Table

Noncontrolling Interests (Tables)	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Noncontrolling Interest [Abstract]
Schedule of activity for noncontrolling interests	The following summarizes the activity for noncontrolling interests recorded as equity for the nine months ended September 30, 2020 and year ended December 31, 2019: Nine Months Ended Year Ended Beginning balance $ 245,040 $ 232,203 Contributions/issuance of noncontrolling interests — 30,039 Reclass of noncontrolling interest subject to redemption 263 — Repurchase of noncontrolling interest (1,137 ) — Issuance of stock dividend for noncontrolling interest 1,068 1,861 Distributions to noncontrolling interests (10,556 ) (19,716 ) Allocated distributions to noncontrolling interests subject to redemption (23 ) (42 ) Net (loss) income (598 ) 3,749 Other comprehensive loss (4,165 ) (3,054 ) Ending balance $ 229,892 $ 245,040	The following summarizes the activity for noncontrolling interests recorded as equity for the years ended December 31, 2019 and 2018: December 31, 2019 2018 Beginning balance $ 232,203 $ 31,105 Contributions/issuance of noncontrolling interests 30,039 (1) 205,000 (1) Issuance of stock dividend for noncontrolling interest 1,861 — Distributions to noncontrolling interests (19,716 ) (4,368 ) Allocated distributions to noncontrolling interests subject to redemption (42 ) (13 ) Net Income 3,749 789 Other comprehensive income (loss) (3,054 ) (310 ) Ending balance $ 245,040 $ 232,203 (1) The issuance of noncontrolling units was the result of the Self Administration Transaction and Mergers. See Note 3, Self Administration Transaction, Real Estate

Related Party Transactions (Tab

Related Party Transactions (Tables)	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Related Party Transaction, Due from (to) Related Party [Abstract]
Schedule of related party transactions	Summarized below are the related party costs incurred by the Company for the nine months ended September 30, 2020 and 2019, respectively, and any related amounts receivable and payable as of September 30, 2020 and December 31, 2019: Incurred for the Nine Receivable as of September 30, September 30, December 31, 2020 2019 2020 2019 Assets Assumed through the Self-Administration Transaction Cash to be received from an affiliate related to deferred compensation and other payroll costs $ — $ 658 $ — $ — Other fees 150 — 201 352 Due from GCC Reimbursable Expense Allocation 16 — 5 4 Payroll/Expense Allocation 300 321 781 481 Due from Affiliates Payroll/Expense Allocation — 1,217 — — O&O Costs (including payroll allocated to O&O) — 157 — — Other Fees — 6,375 — — Total $ 466 $ 8,728 $ 987 $ 837 Incurred for the Nine Payable as of September 30, September 30, December 31, 2020 2019 2020 2019 Expensed Costs advanced by the advisor $ 1,546 $ 2,571 $ 1,120 $ 1,164 Consulting fee—shared services 1,875 1,874 631 441 Disposition fees — 641 — — Capitalized Leasing commissions — 596 — — Acquisition fees — 942 — — Assumed through Self-Administration Transaction/Mergers Earn-out — — 338 2,919 Stockholder Servicing Fee — 693 2,354 4,994 Other fees — 20 — — Other Distributions 8,353 10,089 712 1,365 Total $ 11,774 $ 17,426 $ 5,155 $ 10,883	Summarized below are the related-party costs incurred by the Company for the years ended December 31, 2019, 2018 and 2017, respectively, and any related amounts payable and receivable as of December 31, 2019 and 2018: Incurred for the Year Ended Payable as of 2019 2018 2017 2019 2018 Expensed Operating expenses $ — $ 3,594 $ 2,652 $ — $ 74 Asset management fees — 23,668 23,499 — — Property management fees — 9,479 9,782 — 875 Disposition fees 641 177 1,950 — — Costs advanced by the advisor 3,771 546 587 1,164 341 Consulting fee — shared services 2,500 — — 441 — Capitalized Acquisition fees (1) 942 5,331 3,791 — — Leasing commissions 2,540 2,289 1,752 — — Assumed through Self- Administration Transaction/Mergers Earn-out — — — 2,919 29,380 Other Fees 20 — — — 11,734 Stockholder Servicing Fee 692 — — 4,994 — Other Distributions 14,138 — — 1,365 2 Total $ 25,244 $ 45,084 $ 44,013 $ 10,883 $ 42,406 (1) Acquisition fees related to the acquisition of McKesson II during the year ended December 31, 2019 were capitalized as the acquisition did not meet the business combination criteria. Incurred for the Year Receivable as of 2019 2018 2017 2019 2018 Assets Assumed through the Self-Administration Transaction Cash to be received from an affiliate related to deferred compensation and other payroll costs $ 658 $ — $ — $ — $ 7,951 Other fees — — — 352 11,734 Due from Griffin Capital Company Payroll/Expense Allocation 481 — — 481 — Reimbursable Expense Allocation 4 — — 4 — Due from Affiliates Payroll/Expense Allocation 1,217 — — — — O&O Costs (including payroll allocated to O&O) 157 — — — — Other Fees (1) 6,375 — — — — Total $ 8,892 $ — $ — $ 837 $ 19,685 (1) Includes Payroll/Expense allocation, Offering Costs, Advisory Fee, Performance Distribution, LP Distributions & Employee Reimbursements.

Operating Leases (Tables)

Operating Leases (Tables)	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Leases [Abstract]
Schedule of Future Minimum Base Rents to be Received	The following table sets forth the undiscounted cash flows for future minimum base rents to be received under operating leases as of September 30, 2020: As of Remaining 2020 $ 72,450 2021 303,943 2022 305,905 2023 292,005 2024 251,481 Thereafter 1,137,808 Total $ 2,363,592	The following table sets forth the undiscounted cash flows for future minimum base rents to be received under operating leases as of December 31, 2019. The Company’s current leases have expirations ranging from 2020 to 2044. As of December 31, 2019 2020 $ 288,579 2021 296,570 2022 298,582 2023 284,369 2024 248,114 Thereafter 1,089,718 Total $ 2,505,932
Schedule of Lease, Cost	The following table sets forth the weighted-average for the lease term and the discount rate as of September 30, 2020: Lease Term and Discount Rate As of Weighted-average remaining lease term in years. 80.3 Weighted-average discount rate (1) 4.98 % (1) Because the rate implicit in each of the Company’s leases was not readily determinable, the Company used an incremental borrowing rate. In determining the Company’s incremental borrowing rate for each lease, the Company considered recent rates on secured borrowings, observable risk-free interest rates and credit spreads correlating to the Company’s creditworthiness, the impact of collateralization and the term of each of the Company’s lease agreements.	Lease Term and Discount Rate December 31, 2019 Weighted-average remaining lease term in years 80.9 Weighted-average discount rate (1) 4.98 % (1) Because the rate implicit in each of the Company’s leases was not readily determinable, the Company used incremental borrowing rate. In determining the Company’s incremental borrowing rate for each lease, the Company considered recent rates on secured borrowings, observable risk-free interest rates and credit spreads correlating to the Company’s creditworthiness, the impact of collateralization and the term of each of the Company’s lease agreements.
Schedule of Remaining Required Payments Under Ground Leases	Maturities of lease liabilities as of September 30, 2020 were as follows: As of Remaining 2020 $ 407 2021 1,632 2022 1,675 2023 1,741 2024 1,776 Thereafter 286,738 Total undiscounted lease payments 293,969 Less: imputed interest (248,483 ) Total lease liabilities $ 45,486	Maturities of lease liabilities as of December 31, 2019 were as follows: December 31, 2019 2020 $ 1,629 2021 1,632 2022 1,675 2023 1,741 2024 1,776 Thereafter 286,739 Total undiscounted lease payments 295,192 Less imputed interest (250,172 ) Total lease liabilities $ 45,020
Future Minimum Commitments		The future minimum commitments under the Company’s ground leases as of December 31, 2018 were as follows: December 31, 2018 2019 $ 1,032 2020 1,032 2021 1,032 2022 1,072 2023 1,422 Thereafter 199,024 Total $ 204,614

Selected Quarterly Financial _2

Selected Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Summary of quarterly financial information	Presented below is a summary of the unaudited quarterly financial information for the years ended December 31, 2019, and 2018: 2019 First Quarter Second Quarter Third Quarter Fourth Quarter Total revenue $ 76,485 $ 103,356 $ 97,435 $ 109,832 Income before other income and (expenses) $ 16,579 $ 37,634 $ 22,158 $ 1,891 Net income (loss) $ 8,656 $ 18,215 $ 12,216 $ (2,043 ) (1) Net income (loss) attributable to common stockholders $ 5,333 $ 14,208 $ 8,939 $ (3,693 ) (1) Net income (loss) attributable to common stockholders per share $ 0.03 $ 0.06 $ 0.04 $ (0.02 ) (1) 2018 First Quarter Second Quarter Third Quarter Fourth Quarter Total revenue (2) $ 80,399 $ 85,991 $ 85,041 $ 84,927 Income before other income and (expenses) $ 20,442 $ 20,808 $ 19,012 $ 17,716 Net income $ 6,641 $ 7,799 $ 4,329 $ 3,267 Net income attributable to common stockholders $ 6,319 $ 7,431 $ 2,854 $ 1,012 Net income attributable to common stockholders per share $ 0.04 $ 0.04 $ 0.02 $ 0.01 (1) Primarily the result of impairment charges on the Company’s real estate and investment in unconsolidated entities. See Note 4 & 5 , Real Estate and Investments, (2) Amounts were reclassified to conform to the current period presentation. See Note 2, Basis of Presentation and Summary of Significant Accounting Policies,

Organization - Narrative (Detai

Organization - Narrative (Details) $ / shares in Units, $ in Thousands	Apr. 30, 2019$ / sharesshares	Dec. 14, 2018shares	Sep. 20, 2017USD ($)	Sep. 30, 2018	Sep. 30, 2020USD ($)property$ / sharesshares		Dec. 31, 2019USD ($)$ / sharesshares		Dec. 31, 2018USD ($)$ / sharesshares		Sep. 30, 2019USD ($)	Dec. 31, 2019USD ($)$ / sharesshares		Sep. 30, 2020USD ($)property$ / sharesshares		Dec. 31, 2019USD ($)$ / sharesshares		Dec. 18, 2019$ / shares	May 01, 2019shares	Mar. 01, 2019shares	Jun. 30, 2015shares
Subsidiary, Sale of Stock [Line Items]
Exchange ratio	1.04807
Common Stock, par value (in usd per share) | $ / shares					$ 0.001		$ 0.001		$ 0.001			$ 0.001		$ 0.001		$ 0.001		$ 0.001
Units issued upon conversion (in shares)	1
Common stock, number of shares outstanding (in shares)	78,054,934				229,775,115		227,853,720		174,278,341			227,853,720		229,775,115		227,853,720				252,863,421
GCEAR's operating partnership units outstanding	527,045
Implied EA-1 common stock issued in consideration					283,769,972									283,769,972
Repurchase of noncontrolling interest (shares)					134,383		6,000		0
Limited liability partnership interest held (percent)					87.80%									87.80%
Proceeds from issuance of equity | $											$ 2,700,000	$ 2,700,000		$ 2,800,000		$ 2,700,000
Common stock issued | $					$ 230	[1]	$ 228	[1]	$ 174	[2]		$ 228	[1]	$ 230	[1]	$ 228	[1]
Units eligible towards redemption (in shares)					556,099		554,110		531,161			554,110		556,099		554,110
OP Units
Subsidiary, Sale of Stock [Line Items]
Ownership interest (percent)							87.70%
Sponsor and Affiliates
Subsidiary, Sale of Stock [Line Items]
Limited liability partnership interest held (percent)					10.60%		10.60%					10.60%		10.60%		10.60%
Number of properties contributed | property					5									5
Third parties
Subsidiary, Sale of Stock [Line Items]
Limited liability partnership interest held (percent)					1.60%		1.70%					1.70%		1.60%		1.70%
Follow-on Offering
Subsidiary, Sale of Stock [Line Items]
Proceeds from issuance of private placement | $			$ 2,200,000									$ 80,700		$ 116,400
Implied EA-1 common stock issued in consideration					12,250,750		8,412,006					8,412,006		12,250,750		8,412,006
Distribution Reinvestment Plan
Subsidiary, Sale of Stock [Line Items]
Proceeds from issuance of private placement | $			200,000
Common stock issued | $					$ 310,800		$ 293,700		$ 252,800			$ 293,700		$ 310,800		$ 293,700
Units eligible towards redemption (in shares)					151,178									151,178
Private Offering
Subsidiary, Sale of Stock [Line Items]
Proceeds from issuance of private placement | $			$ 2,000,000
Implied EA-1 common stock issued in consideration							281,468,830					281,468,830				281,468,830					43,772,611
Signature Office REIT Merger
Subsidiary, Sale of Stock [Line Items]
Implied EA-1 common stock issued in consideration																					43,772,611
Common Class E
Subsidiary, Sale of Stock [Line Items]
Exchange ratio	1.04807
Common Stock, par value (in usd per share) | $ / shares	$ 0.001
Exchange ratio	1.04807
Number of shares issued (in shares)	174,981,547
Units issued upon conversion (in shares)	1
Common stock, number of shares outstanding (in shares)					154,952,279		154,151,658					154,151,658		154,952,279		154,151,658
Implied EA-1 common stock issued in consideration	174,981,547
Common Class E | Private Offering
Subsidiary, Sale of Stock [Line Items]
Implied EA-1 common stock issued in consideration	174,981,547
Cumulative Perpetual Convertible Preferred Stock
Subsidiary, Sale of Stock [Line Items]
Shares issued upon conversion (shares)	1
Series A Preferred Stock
Subsidiary, Sale of Stock [Line Items]
Number of shares issued (in shares)	5,000,000
Common stock, number of shares outstanding (in shares)																			5,000,000
Share Redemption Program
Subsidiary, Sale of Stock [Line Items]
Share limit under the repurchase program (percent), Redemption, Percentage of Weighted Average Shares Outstanding				5.00%
Board of Directors Chairman
Subsidiary, Sale of Stock [Line Items]
Partnership units owned (shares)					2,400,000		2,400,000					2,400,000		2,400,000		2,400,000
GRECO
Subsidiary, Sale of Stock [Line Items]
Number of units exchanged (shares)		20,438,684
Operating Partnership Units
Subsidiary, Sale of Stock [Line Items]
GCEAR's operating partnership units outstanding																			284,533,435
[1]	See Note 9, Equity, for the number of shares outstanding of each class of common stock as of September 30, 2020.
[2]	See Note 10, Equity, for the number of shares outstanding of each class of common stock as of December 31, 2019.

Basis of Presentation and Sum_4

Basis of Presentation and Summary of Significant Accounting Policies - Narrative (Details Textual) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2020USD ($)Segment	Dec. 31, 2019USD ($)leaseSegment	Sep. 20, 2019USD ($)	May 01, 2019USD ($)	Mar. 01, 2019USD ($)	Jan. 01, 2019USD ($)lease	Dec. 31, 2018USD ($)
Accounting Policies [Abstract]
Cash equivalents or restrictions on cash		$ 0					$ 0
FDIC insured limit		$ 250,000
Number of reportable segments | Segment	1	1
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of ground leases | lease		3				2
Right of use asset	$ 40,286	$ 41,347	$ 16,300				0
Lease liability	$ 45,486	$ 45,020	16,300	$ 600	$ 600		$ 0
Discount rate (percent)						5.36%
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right of use asset						$ 25,500
Lease liability						$ 27,600
Chicago Illinois Office
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right of use asset				$ 600	$ 600
Discount rate (percent)					3.94%
McKesson II
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right of use asset			$ 16,300
Discount rate (percent)			4.36%

Basis of Presentation and Sum_5

Basis of Presentation and Summary of Significant Accounting Policies - Property and Equipment (Details)	12 Months Ended
	Dec. 31, 2019
Buildings | Minimum
Property, Plant and Equipment [Line Items]
Estimated life of assets	25 years
Buildings | Maximum
Property, Plant and Equipment [Line Items]
Estimated life of assets	40 years
Building Improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated life of assets	5 years
Building Improvements | Maximum
Property, Plant and Equipment [Line Items]
Estimated life of assets	20 years
Land Improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated life of assets	15 years
Land Improvements | Maximum
Property, Plant and Equipment [Line Items]
Estimated life of assets	25 years

Basis of Presentation and Sum_6

Basis of Presentation and Summary of Significant Accounting Policies - Reconciliation of Prior Period Presentation (Details) - USD ($) $ in Thousands	3 Months Ended									9 Months Ended		12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease income													$ 247,442	$ 257,465
Rental income	$ 100,002	$ 109,832	$ 97,435	$ 103,356	$ 76,485	$ 84,927	$ 85,041	$ 85,991	$ 80,399	$ 301,157	$ 277,276	$ 387,108	336,359	346,490
Presentation prior to January 1, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease termination income													15,671	14,604
Property expense recoveries													73,246	74,421
Rental income													$ 336,359	$ 346,490

Self Administration Transacti_3

Self Administration Transaction - Narrative (Details) $ / shares in Units, $ in Thousands, shares in Millions	Dec. 14, 2018USD ($)contingency$ / sharesshares	Sep. 30, 2020USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Business Acquisition [Line Items]
Goodwill		$ 229,948	$ 229,948	$ 229,948
GRECO
Business Acquisition [Line Items]
Membership interest acquired (percent)	100.00%
Limited partnership units issued (shares) | shares	20.4
Share price (in usd per share) | $ / shares	$ 10.03
Number of earn-out contingencies | contingency	2
Estimated fair value of earn-out obligation	$ 29,380
Goodwill	$ 229,948

Self Administration Transacti_4

Self Administration Transaction - Schedule of Consideration Given (Details) - GRECO $ in Thousands	Dec. 14, 2018USD ($)
Business Acquisition [Line Items]
Fair value of Operating Partnership units issued	$ 205,000
Fair value of earn-outs	29,380
Total consideration	254,065
Less: accounts receivable from affiliates and other assets	(19,878)
Net consideration	234,187
Executive deferred compensation plan
Business Acquisition [Line Items]
Accrued liabilities:	7,795
Other liabilities
Business Acquisition [Line Items]
Accrued liabilities:	$ 11,890

Self Administration Transacti_5

Self Administration Transaction - Purchase Price Allocation (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 14, 2018
Business Acquisition [Line Items]
Goodwill	$ 229,948	$ 229,948	$ 229,948
GRECO
Business Acquisition [Line Items]
Accounts receivable from affiliates and other assets				$ 19,878
Management contract intangibles				4,239
Goodwill				229,948
Total assets acquired				254,065
Earn-outs (due to affiliates)				29,380
Executive deferred compensation plan				7,795
Other liabilities				11,890
Total liabilities assumed				49,065
Net assets acquired				$ 205,000

Self Administration Transacti_6

Self Administration Transaction - Pro Forma Information (Details) - GRECO $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)$ / shares
Business Acquisition [Line Items]
Revenue	$ 336,359
Net income	61,362
Net income attributable to noncontrolling interests	9,309
Net income attributable to common stockholders	$ 48,423
Net income attributable to common stockholders per share, basic and diluted (in usd per share) | $ / shares	$ 0.29

Real Estate - Narrative (Detail

Real Estate - Narrative (Details) $ / shares in Units, $ in Thousands	Jun. 30, 2020USD ($)	Nov. 20, 2019USD ($)	Oct. 14, 2019USD ($)	Sep. 05, 2019USD ($)	Jul. 30, 2019USD ($)	Jun. 30, 2017USD ($)	Sep. 30, 2020USD ($)propertystateparcelshares	Sep. 30, 2019USD ($)	Dec. 31, 2019USD ($)propertystateparcelshares	Dec. 31, 2018USD ($)shares	Dec. 31, 2017USD ($)	Apr. 30, 2019$ / sharesshares	Apr. 29, 2019shares	Mar. 01, 2019shares
Real Estate Properties [Line Items]
Number of properties owned | property							99		99
Number of states | state							25		25
Number of land parcels held | parcel							1		1
Purchase price							$ 4,200,000		$ 4,200,000
Depreciation expense						$ 56,000	69,956	$ 57,473	80,394	$ 60,120	$ 55,982
Amortization of intangible assets						$ 60,600	$ 50,990	54,838	$ 73,031	$ 59,048	60,601
Common stock, number of shares outstanding (in shares) | shares							229,775,115		227,853,720	174,278,341		78,054,934		252,863,421
Exchange ratio												1.04807
Useful life									7 years 4 months 9 days	6 years 7 months 6 days
Real estate investment property							$ 3,545,939		$ 3,610,329	$ 2,534,952	2,442,576
Gain on sale of real estate							4,268	8,441	29,940	1,231	116,382
Proceeds from disposition of properties							23,480	$ 46,784	139,446	$ 11,442	$ 394,502
Lynnwood IV
Real Estate Properties [Line Items]
Proceeds from sale of land					$ 1,800
Real estate investment property					1,300
Gain on sale of real estate					$ 300
7601 Technology Way
Real Estate Properties [Line Items]
Proceeds from sale of land				$ 48,800
Real estate investment property				37,600
Gain on sale of real estate				$ 8,100
10 Commerce Center Parkway
Real Estate Properties [Line Items]
Proceeds from disposition of properties			$ 30,300
2160 East Grand Avenue
Real Estate Properties [Line Items]
Real estate investment property		$ 21,500
Gain on sale of real estate		41,500
Proceeds from disposition of properties		$ 63,500
2200 Channahon Road and Houston Way I
Real Estate Properties [Line Items]
Impairment of real estate							$ 22,200		$ 30,700
Number of impaired properties | property							3		2
Bank of America II Property
Real Estate Properties [Line Items]
Gain on sale of real estate	$ 4,300
Proceeds from disposition of properties	24,500
Bank of America II Property | Land and Building [Member]
Real Estate Properties [Line Items]
Carrying value of property	$ 19,600
Maximum
Real Estate Properties [Line Items]
Discount rate (percent)							0.0625
Griffin Capital Essential Asset REIT, Inc.
Real Estate Properties [Line Items]
Common stock, number of shares outstanding (in shares) | shares													167,000,000
EA-1's net asset value per share | $ / shares												$ 10.02
Discount rate | Minimum
Real Estate Properties [Line Items]
Discount rate (percent)									575
Discount rate | Maximum
Real Estate Properties [Line Items]
Discount rate (percent)									1,175
Common Class E
Real Estate Properties [Line Items]
Common stock, number of shares outstanding (in shares) | shares							154,952,279		154,151,658
Exchange ratio												1.04807

Real Estate - Schedule of Acqui

Real Estate - Schedule of Acquisitions (Details) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2020USD ($)	Dec. 31, 2019USD ($)ft²	Sep. 30, 2019USD ($)ft²
Quaker
Real Estate Properties [Line Items]
Percentage of Acquisition Fees		2.50%
Purchase Price		$ 37,674
Approx. Square Feet (in sqft) | ft²		124,900
Acquisition fees and expenses to non- affiliates		$ 1,059
Pepsi Bottling Ventures Loan
Real Estate Properties [Line Items]
Purchase Price			$ 34,937
Approx. Square Feet (in sqft) | ft²			526,320
Acquisition fees and expenses to non- affiliates	$ 386

Real Estate - Consideration Tra

Real Estate - Consideration Transferred (Details) $ / shares in Units, $ in Thousands	Apr. 30, 2019USD ($)$ / sharesshares	Jun. 30, 2019USD ($)	Sep. 30, 2020USD ($)shares	Sep. 30, 2019USD ($)	Dec. 31, 2019USD ($)shares	Dec. 31, 2018USD ($)shares	Dec. 31, 2017USD ($)	Apr. 29, 2019shares	Mar. 01, 2019shares
Real Estate [Line Items]
Number of shares outstanding (in shares)	78,054,934		229,775,115		227,853,720	174,278,341			252,863,421
Exchange ratio	1.04807
Implied EA-1 common stock issued in consideration			283,769,972
GCEAR's operating partnership units outstanding	527,045
Implied EA-1 operating partnership units issued in consideration			200,000		0.2
Implied EA-1 common stock and operating partnership units issued in exchange for net assets acquired in Merger | $	$ 751,278	$ 751,277	$ 0	$ 751,278	$ 751,277	$ 0	$ 0
Griffin Capital Essential Asset REIT, Inc.
Real Estate [Line Items]
Number of shares outstanding (in shares)								167,000,000
Implied EA-1 common stock issued in consideration	74,474,924
Exchange ratio	1.04807
Implied EA-1 operating partnership units issued in consideration	502,872
EA-1's net asset value per share | $ / shares	$ 10.02

Real Estate - Purchase Price Al

Real Estate - Purchase Price Allocation (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Apr. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Real Estate Properties [Line Items]
In-place lease valuation (below market)	$ (68,334)		$ (67,622)	$ (55,147)
Debt discount / (premium)			1,099
Pepsi Bottling Ventures Loan
Real Estate Properties [Line Items]
Land	3,407
Building	26,813
Improvements	954
Tenant origination and absorption cost	4,970
In-place lease valuation (below market)	(712)
Debt discount / (premium)	(109)
Fair value of net assets acquired, less EA-1's Merger expenses	$ 35,323
The Mergers
Real Estate Properties [Line Items]
Cash assumed		$ 35,659
Land		135,875
Building and improvements		913,739
Tenant origination and absorption cost		214,428
Intangibles		3,627
Construction in progress		263
Other assets		5,964
Total assets		1,309,555
Debt (net of $1.1 million premium)		498,906
Below market leases		12,476
Due to Affiliates		8,804
Distribution payable		1,854
Restricted reserves		11,050
Accounts payable and other liabilities		14,849
Total liabilities		547,939
Fair value of net assets acquired		761,616
Less: EA-1's Merger expenses		10,338	$ 10,338
Fair value of net assets acquired, less EA-1's Merger expenses		751,278
Debt premium		$ 1,100

Real Estate - Breakdown of Cost

Real Estate - Breakdown of Costs (Details) - The Mergers - USD ($) $ in Thousands	Apr. 30, 2019	Dec. 31, 2019
Real Estate [Line Items]
Advisory and valuation fees		$ 8,592
Legal, accounting and tax fees		1,384
Other fees		362
Total Merger-related fees	$ 10,338	$ 10,338

Real Estate - Final Purchase Pr

Real Estate - Final Purchase Price Allocation (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019	Sep. 20, 2019	Dec. 31, 2018
Real Estate [Line Items]
Land	$ 451,696		$ 458,339		$ 350,470
In-place lease valuation (above market)	43,605		44,012		42,736
In-place lease valuation - (below) market	(68,334)		(67,622)		(55,147)
Lease income	234,900	$ 212,800	291,400
Right of use asset	$ 40,286		41,347	$ 16,300	$ 0
Properties Acquired Through Mergers
Real Estate [Line Items]
Land			135,875
Building and improvements			850,811
Tenant Improvements			62,928
Tenant origination and absorption costs			214,428
In-place lease valuation (above market)			3,627
In-place lease valuation - (below) market			(12,476)
Land Leasehold Value (Above Market)			0
Total			1,255,193
Lease income			66,004
McKesson II
Real Estate [Line Items]
Land			0
Building and improvements			25,446
Tenant Improvements			4,681
Tenant origination and absorption costs			11,513
In-place lease valuation (above market)			239
In-place lease valuation - (below) market			0
Land Leasehold Value (Above Market)			(3,072)
Total			38,807
Lease income			$ 958
McKesson II
Real Estate [Line Items]
Right of use asset				$ 16,300

Real Estate - Intangibles (Deta

Real Estate - Intangibles (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019	Dec. 31, 2018
Real Estate [Abstract]
In-place lease valuation (above market)	$ 43,605	$ 44,012	$ 42,736
In-place lease valuation (above market) - accumulated amortization	(35,024)	(33,322)	(31,995)
In-place lease valuation (above market), net	8,581	10,690	10,741
Ground leasehold interest (below market)	2,254	2,254	2,255
Ground leasehold interest (below market) - accumulated amortization	(184)	(164)	(137)
Ground leasehold interest (below market), net	2,070	2,090	2,118
Intangibles - other		0	4,240
Intangible assets, net	10,651	12,780	17,099
In-place lease valuation (below market)	(68,334)	(67,622)	(55,147)
Land Leasehold interest (above market)	(3,073)	(3,073)	0
In-place lease valuation (below market) - accumulated amortization	42,859	38,890	32,032
In-place lease valuation (below market), net	(28,548)	(31,805)	(23,115)
Tenant origination and absorption cost	745,039	744,773	530,181
Tenant origination and absorption cost - accumulated amortization	(399,005)	(354,379)	(296,201)
Tenant origination and absorption cost, net	$ 346,034	$ 390,394	$ 233,980

Real Estate - Amortization of I

Real Estate - Amortization of Intangible Assets and Other Leasing Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Schedule of amortization expense
Above and below market leases, net	$ (3,201)	$ (685)	$ 1,689
Tenant origination and absorption cost	69,502	55,464	59,046
Ground leasehold amortization (below market)	(52)	27	27
Other leasing costs amortization	$ 3,581	$ 3,557	$ 1,527

Real Estate - Estimated Annual

Real Estate - Estimated Annual Amortization (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
In-place lease valuation, net
2020		$ (2,150)
2021	$ (2,518)	(2,066)
2022	(2,465)	(2,467)
2023	(1,648)	(2,415)
2024	(1,186)	(1,593)
Tenant origination and absorption costs
2020		64,739
2021	54,744	57,151
2022	50,184	54,050
2023	38,006	49,246
2024	27,450	41,479
Ground leasehold improvements
2020		(291)
2021	(290)	(290)
2022	(290)	(290)
2023	(291)	(290)
2024	(290)	(291)
Other leasing costs
2020		4,911
2021	6,063	5,668
2022	5,934	5,673
2023	5,700	5,571
2024	$ 5,580	$ 5,533

Real Estate - Leasing Costs For

Real Estate - Leasing Costs For Next Five Years (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Future In-place Lease [Abstract]
Remaining 2020	$ (525)
2021	(2,118)
2022	(2,518)	$ (2,066)
2023	(2,465)	(2,467)
2024	(1,648)	(2,415)
2025	(1,186)	(1,593)
Future Tenant Origination and Absorption Cost [Abstract]
Remaining 2020	14,870
2021	57,846
2022	54,744	57,151
2023	50,184	54,050
2024	38,006	49,246
2025	27,450	41,479
Future Ground Leasehold Improvements [Abstract]
Remaining 2020	(73)
2021	(290)
2022	(290)	(290)
2023	(290)	(290)
2024	(291)	(290)
2025	(290)	(291)
Future Other Leasing Costs [Abstract]
Remaining 2020	1,372
2021	6,057
2022	6,063	5,668
2023	5,934	5,673
2024	5,700	5,571
2025	$ 5,580	$ 5,533

Real Estate - Ongoing Replaceme

Real Estate - Ongoing Replacement Reserve (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019	Dec. 31, 2018
Restricted Cash [Roll Forward]
Restricted cash	$ 35,831	$ 58,430	$ 15,807
Real Estate Asset Acquisitions and Contributions
Restricted Cash [Roll Forward]
Restricted cash	35,831	58,430	15,807
Real Estate Asset Acquisitions and Contributions | Deposits
Restricted Cash [Roll Forward]
Restricted cash	22,909	48,129	12,945
Real Estate Asset Acquisitions and Contributions | Midland Mortgage Loan Restricted Lockbox
Restricted Cash [Roll Forward]
Restricted cash	$ 12,922	10,301	$ 2,862
Real Estate Asset Acquisitions and Contributions | Escrow Reserve
Restricted Cash [Roll Forward]
Restricted cash		$ 28,700

Investments - Narrative (Detail

Investments - Narrative (Details)	Jul. 17, 2019USD ($)	Sep. 30, 2014USD ($)ft²extension	Sep. 30, 2020USD ($)	Sep. 30, 2019USD ($)	Sep. 30, 2020USD ($)	Sep. 30, 2019USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Sep. 09, 2020USD ($)	Mar. 29, 2019USD ($)	Jun. 30, 2018ft²	Sep. 09, 2014
Gain (Loss) on Securities [Line Items]
Acquisitions					$ 8,160,000	$ 0
Other comprehensive loss			$ 0	$ 73,000	0	$ 251,000	$ 217,000	$ (122,000)	$ (465,000)
Assets			$ 4,223,950,000		$ 4,223,950,000		4,175,502,000	$ 3,012,775,000
Heritage Common X
Gain (Loss) on Securities [Line Items]
Area of equity method investments (in sqft) | ft²												200,000
Proceeds from sale of real estate	$ 8,200,000
Debt costs	41,400,000
Gain (loss) on disposal	4,100,000
Realized gain on disposal	$ 600,000
Escrow deposit							400,000
Ownership interest (percent)	45.00%
Other comprehensive loss							$ 0
Digital Realty Joint Venture
Gain (Loss) on Securities [Line Items]
Area of equity method investments (in sqft) | ft²		132,300
Ownership interest (percent)		80.00%											80.00%
Acquisitions		$ 68,400,000
Operating lease term					3 years 6 months		3 years
Other comprehensive loss							$ 200,000
Assets		187,500,000
Debt		102,000,000
Guaranteed rate of return (percent)			7.00%		7.00%
Receivable			$ 4,100,000		$ 4,100,000
Digital Realty Joint Venture | Gross Acquisition Value of Property
Gain (Loss) on Securities [Line Items]
Assets, noncurrent		187,500,000
Digital Realty Joint Venture | Debt Financing for acquisition of property
Gain (Loss) on Securities [Line Items]
Liabilities, noncurrent		102,000,000
Digital Realty Joint Venture | Secured term loan | The Loan
Gain (Loss) on Securities [Line Items]
Secured term loan		$ 102,000,000
Number of term extensions | extension		2
Duration of each extension term		12 months
Outstanding letter of credit										$ 8,200,000	$ 8,200,000
Mercedes-Benz Financial Services USA | Heritage Common X
Gain (Loss) on Securities [Line Items]
Area of real estate leased			100.00%		100.00%		100.00%

Investments - Share of Earnings

Investments - Share of Earnings and Losses of Investments (Details) - USD ($)	1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2014	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Equity Method Investments [Roll Forward]
Beginning Balance				$ 11,028,000	$ 30,565,000	$ 30,565,000
Net (loss) income		$ (4,452,000)	$ 3,027,000	(6,523,000)	1,919,000	(5,307,000)	$ (2,254,000)	$ (2,065,000)
Other comprehensive loss		0	$ (73,000)	0	(251,000)	(217,000)	122,000	$ 465,000
Contributions				8,160,000	0
Ending Balance		34,000		34,000		11,028,000	30,565,000
Unconsolidated investments
Equity Method Investments [Roll Forward]
Beginning Balance				11,028,000	30,565,000	30,565,000
Net (loss) income				(165,000)		1,619,000
Distributions				(8,530,000)		(14,013,000)
Other comprehensive loss						(217,000)
Contributions				8,160,000
Valuation adjustment				(4,452,000)
Impairment				(1,907,000)		(6,926,000)
Clawback receivable reclass				(4,100,000)
Ending Balance		34,000		34,000		11,028,000	30,565,000
Digital Realty Joint Venture
Equity Method Investments [Roll Forward]
Other comprehensive loss						(200,000)
Contributions	$ 68,400,000
Digital Realty Joint Venture | Unconsolidated investments
Equity Method Investments [Roll Forward]
Beginning Balance				10,584,000	27,291,000	27,291,000
Net (loss) income				(165,000)		(2,509,000)
Distributions				(8,120,000)		(7,055,000)
Other comprehensive loss						(217,000)
Contributions				8,160,000
Valuation adjustment				(4,452,000)
Impairment				(1,907,000)		(6,926,000)
Clawback receivable reclass				(4,100,000)
Ending Balance		0		0		10,584,000	27,291,000
Heritage Common X
Equity Method Investments [Roll Forward]
Other comprehensive loss						0
Disposition and advisory fees						600,000
Fees and taxes incurred						1,200,000
Heritage Common X | Unconsolidated investments
Equity Method Investments [Roll Forward]
Beginning Balance				444,000	$ 3,274,000	3,274,000
Net (loss) income				0		4,128,000
Distributions				(410,000)		(6,958,000)
Other comprehensive loss						0
Contributions				0
Valuation adjustment				0
Impairment				0		0
Clawback receivable reclass				0
Ending Balance		$ 34,000		$ 34,000		$ 444,000	$ 3,274,000

Debt - Schedule of Debt (Detail

Debt - Schedule of Debt (Details) - USD ($) $ in Thousands	Apr. 30, 2019	Jul. 20, 2015	Sep. 30, 2020	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Total Debt			$ 2,182,615	$ 1,979,072	$ 1,362,179
Unamortized Deferred Financing Costs and Premiums/(Discounts)			(8,263)	(9,968)	(8,648)
Debt, net			$ 2,174,352	1,969,104	1,353,531
Derivative, notional amount				$ 850,000	850,000
LIBOR
Debt Instrument [Line Items]
Effective interest rate (percent)			0.16%	1.69%
2023 Term Loan
Debt Instrument [Line Items]
Effective interest rate (percent)			1.80%	3.28%
2023 Term Loan | LIBOR
Debt Instrument [Line Items]
Interest rate spread on the variable rate debt (percent)			1.55%	1.40%
2024 Term Loan
Debt Instrument [Line Items]
Effective interest rate (percent)			1.79%	3.27%
2024 Term Loan | LIBOR
Debt Instrument [Line Items]
Interest rate spread on the variable rate debt (percent)			1.55%	1.40%
2026 Term Loan
Debt Instrument [Line Items]
Effective interest rate (percent)			2.06%	3.59%
2026 Term Loan | Revolving Credit Facility
Debt Instrument [Line Items]
Term of debt instrument		4 years
Extended term on debt		1 year
2026 Term Loan | LIBOR
Debt Instrument [Line Items]
Interest rate spread on the variable rate debt (percent)			1.85%	1.75%
Revolving Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Total Debt			$ 401,500	$ 211,500	0
Effective interest rate (percent)			1.88%	3.35%
Term of debt instrument			2 years	3 years
Extended term on debt			1 year	1 year
Revolving Credit Facility | LIBOR | Revolving Credit Facility
Debt Instrument [Line Items]
Interest rate spread on the variable rate debt (percent)			1.60%	1.45%
Mortgages
Debt Instrument [Line Items]
Total Debt			$ 1,031,115	$ 1,017,572	647,179
Mortgages | HealthSpring Mortgage Loan
Debt Instrument [Line Items]
Total Debt			$ 20,340	$ 20,723	21,219
Contractual interest rate on fixed rate debt (percent)			4.18%	4.18%
Effective interest rate (percent)			4.62%	4.61%
Mortgages | Midland Mortgage Loan
Debt Instrument [Line Items]
Total Debt			$ 98,687	$ 100,249	102,262
Contractual interest rate on fixed rate debt (percent)			3.94%	3.94%
Effective interest rate (percent)			4.12%	4.10%
Mortgages | Emporia Partners Mortgage Loan
Debt Instrument [Line Items]
Total Debt			$ 1,749	$ 2,104	2,554
Contractual interest rate on fixed rate debt (percent)			5.88%	5.88%
Effective interest rate (percent)			5.97%	5.98%
Mortgages | Samsonite Loan
Debt Instrument [Line Items]
Total Debt			$ 20,418	$ 21,154	22,085
Contractual interest rate on fixed rate debt (percent)			6.08%	6.08%
Effective interest rate (percent)			5.10%	5.14%
Mortgages | Highway 94 loan
Debt Instrument [Line Items]
Total Debt			$ 14,922	$ 15,610	16,497
Contractual interest rate on fixed rate debt (percent)			3.75%	3.75%
Effective interest rate (percent)			4.78%	4.73%
Mortgages | Pepsi Bottling Ventures Loan
Debt Instrument [Line Items]
Total Debt			$ 18,677	$ 0
Contractual interest rate on fixed rate debt (percent)			3.69%
Effective interest rate (percent)			3.92%
Mortgages | AIG Loan II
Debt Instrument [Line Items]
Total Debt			$ 126,970	$ 127,000	0
Contractual interest rate on fixed rate debt (percent)			4.15%	4.15%
Effective interest rate (percent)			4.93%	4.91%
Term of debt instrument				10 years
Mortgages | BOA Loan
Debt Instrument [Line Items]
Total Debt			$ 375,000	$ 375,000	375,000
Contractual interest rate on fixed rate debt (percent)			3.77%	3.77%
Effective interest rate (percent)			3.91%	3.92%
Mortgages | BOA/KeyBank Loan
Debt Instrument [Line Items]
Total Debt			$ 250,000	$ 250,000	0
Contractual interest rate on fixed rate debt (percent)			4.32%	4.32%
Effective interest rate (percent)			4.14%	4.16%
Term of debt instrument				10 years
Mortgages | AIG Loan
Debt Instrument [Line Items]
Total Debt			$ 104,352	$ 105,762	107,562
Contractual interest rate on fixed rate debt (percent)			4.96%	4.96%
Effective interest rate (percent)			5.08%	5.08%
Loans Payable | 2023 Term Loan
Debt Instrument [Line Items]
Total Debt			$ 200,000	$ 200,000	0
Term of debt instrument	4 years
Loans Payable | 2024 Term Loan
Debt Instrument [Line Items]
Total Debt			400,000	400,000	0
Term of debt instrument	5 years
Loans Payable | 2026 Term Loan
Debt Instrument [Line Items]
Total Debt			150,000	150,000	0
Term of debt instrument	7 years
Loans Payable | Term Loan
Debt Instrument [Line Items]
Total Debt				$ 0	$ 715,000
Fixed and Variable Rate Debt
Debt Instrument [Line Items]
Weighted average interest rate of the fixed-rate debt (percent)				3.72%
Fixed Rate Debt
Debt Instrument [Line Items]
Weighted average interest rate of the fixed-rate debt (percent)				3.89%
Interest Rate Swap
Debt Instrument [Line Items]
Derivative, notional amount			$ 750,000	$ 425,000
Interest Rate Swap | Fixed and Variable Rate Debt
Debt Instrument [Line Items]
Weighted average interest rate of the fixed-rate debt (percent)			3.56%
Interest Rate Swap | Fixed Rate Debt
Debt Instrument [Line Items]
Weighted average interest rate of the fixed-rate debt (percent)			3.96%

Debt - Narrative (Details)

Debt - Narrative (Details)	Apr. 30, 2019USD ($)propertyloanEntity	Jul. 20, 2015USD ($)	Sep. 30, 2020USD ($)propertyquarter	Sep. 30, 2019USD ($)propertyquarter	Dec. 31, 2019USD ($)propertyquarter	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Feb. 05, 2020USD ($)	Mar. 29, 2016USD ($)
Line of Credit Facility [Line Items]
Closing costs, including arrangement fees, commitment fees and legal fees			$ 145,000	$ 5,737,000	$ 5,737,000	$ 24,000	$ 3,329,000
Minimum unsecured interest coverage ratio			2
Number of properties owned | property			99		99
Debt outstanding			$ 2,182,615,000		$ 1,979,072,000	1,362,179,000
Long-term Debt			$ 2,174,352,000		1,969,104,000	1,353,531,000
Term Loan
Line of Credit Facility [Line Items]
Line of credit facility maximum borrowing capacity		$ 1,140,000,000
Revolving Credit Facility | 2026 Term Loan
Line of Credit Facility [Line Items]
Line of credit facility maximum borrowing capacity		$ 500,000,000
Extended term on debt		1 year
Term of debt instrument		4 years
Line of Credit | 2026 Term Loan
Line of Credit Facility [Line Items]
Line of credit facility maximum borrowing capacity		$ 1,140,000,000
Line of Credit | Revolving Credit Facility
Line of Credit Facility [Line Items]
Line of credit facility maximum borrowing capacity	$ 750,000,000
Extended term on debt	1 year
Term of debt instrument	3 years
Incremental reductions in Revolving Commitments that can be made	$ 50,000,000
Minimum borrowing capacity	150,000,000
Minimum number of Pool Properties under credit agreement | property			15	15
Maximum aggregated pool value that may be contributed by a single Pool Property or tenant (percent)			15.00%	15.00%
Maximum of aggregate pool value that may be contributed by Pool Properties subject to ground leases (percent)			15.00%	15.00%
Maximum aggregate pool value tht may be contributed by Pool Properties under development or assets under renovation (percent)			20.00%	20.00%
Minimum aggregate leasing percentage of all Pool Properties (percent)			90.00%	90.00%
Maximum unsecured leverage ratio (percent)			60.00%	60.00%
Minimum unsecured interest coverage ratio			2	2
Unsecured Debt | 2026 Term Loan
Line of Credit Facility [Line Items]
Term of debt instrument		5 years
Unsecured Debt | 2026 Term Loan
Line of Credit Facility [Line Items]
Line of credit facility maximum borrowing capacity		$ 640,000,000
Unsecured Debt | Term Loan
Line of Credit Facility [Line Items]
Line of credit facility maximum borrowing capacity		640,000,000							$ 715,000,000
Outstanding balance repaid	715,000,000
Unsecured Debt | Revolving Credit Facility
Line of Credit Facility [Line Items]
Line of credit facility maximum borrowing capacity		$ 500,000,000
Loans Payable
Line of Credit Facility [Line Items]
Additional capacity option	200,000,000
Minimum increment increase to borrowing capacity	25,000,000
Increase limit on borrowing capacity	$ 25,000,000
Loans Payable | The Term Loans
Line of Credit Facility [Line Items]
Number of term loans | loan	3
Loans Payable | 2023 Term Loan
Line of Credit Facility [Line Items]
Line of credit facility maximum borrowing capacity	$ 2,000,000,000
Term of debt instrument	4 years
Term of debt instrument	5 years
Debt outstanding			$ 200,000,000		200,000,000	0
Loans Payable | 2024 Term Loan
Line of Credit Facility [Line Items]
Line of credit facility maximum borrowing capacity	$ 400,000,000
Term of debt instrument	5 years
Debt outstanding			400,000,000		400,000,000	0
Loans Payable | 2026 Term Loan
Line of Credit Facility [Line Items]
Line of credit facility maximum borrowing capacity	$ 150,000,000
Term of debt instrument	7 years
Debt outstanding			$ 150,000,000		$ 150,000,000	0
Loans Payable | Keybank Loans
Line of Credit Facility [Line Items]
Closing costs, including arrangement fees, commitment fees and legal fees	$ 5,700,000
Administrative agent fee	25,000
Maximum consolidated leverage ratio (percent)			60.00%	60.00%
Maximum consolidated leverage ratio after material acquisition (percent)			65.00%	65.00%
Number of consecutive quarters subject to higher ratio | quarter			4	4
Minimum consolidated tangible net worth (percent)			75.00%		75.00%
Minimum consolidated tangible net worth			$ 2,000,000,000		$ 2,000,000,000
Tangible net worth, additional percentage of net future equity issuances (percent)			75.00%		75.00%
Tangible net worth, reduction for any payments used to redeem Company's or Borrower's stock (percent)			75.00%		75.00%
Minimum consolidated fixed charge coverage ratio			1.50		1.50
Maximum total secured debt ratio (percent)			40.00%		40.00%
Increase to maximum total secured debt ratio (percent)			0.00%		0.00%
Number of consecutive quarters subject to higher total secured debt ratio | quarter			4		4
Minimum unsecured interest coverage ratio					2
Maximum total secured recourse debt ratio (percent)			10.00%		10.00%
Aggregate maximum unhedged variable rate debt (percent)			30.00%		30.00%
Maximum payout ratio (percent)			95.00%		95.00%
Maximum unimproved land as a percentage of total assets value (percent)			5.00%		5.00%
Maximum of pre-leased assets as percentage of total asset value (percent)			20.00%		20.00%
Maximum of investments in unconsolidated affiliates as percentage of total asset value (percent)			10.00%		10.00%
Maximum of investments in mortgage notes as percentage of total asset value (percent)			15.00%		15.00%
Maximum of leased assets under renovation as percentage of total asset value (percent)			10.00%		10.00%
Maximum of aggregate investment limitations as percentage of total asset value (percent)			25.00%		25.00%
Loans Payable | Term Loan
Line of Credit Facility [Line Items]
Debt outstanding					$ 0	715,000,000
Bridge Loan | Revolving Credit Facility
Line of Credit Facility [Line Items]
Line of credit facility maximum borrowing capacity	$ 125,000,000
Repayment period	10 days
Mortgages
Line of Credit Facility [Line Items]
Debt outstanding			$ 1,031,115,000		$ 1,017,572,000	647,179,000
Mortgages | BOA/KeyBank Loan
Line of Credit Facility [Line Items]
Term of debt instrument					10 years
Number of SPEs | Entity	4
Number of properties owned | property	4
Aggregate borrowings	$ 250,000,000
Contractual interest rate (percent)			4.32%		4.32%
Prior notice					30 days
Debt outstanding			$ 250,000,000		$ 250,000,000	0
Mortgages | AIG Loan II
Line of Credit Facility [Line Items]
Term of debt instrument					10 years
Number of SPEs | Entity	6
Aggregate borrowings	$ 127,000,000
Contractual interest rate (percent)			4.15%		4.15%
Prior notice					30 days
Debt outstanding			$ 126,970,000		$ 127,000,000	$ 0
Duration of interest-only payments					5 years
Mortgages | Pepsi Bottling Ventures Loan
Line of Credit Facility [Line Items]
Contractual interest rate (percent)			3.69%
Debt outstanding			$ 18,677,000		$ 0
Pepsi Bottling Ventures Loan | Pepsi Bottling Ventures Loan
Line of Credit Facility [Line Items]
Contractual interest rate (percent)								3.69%
Long-term Debt								$ 18,900,000
Minimum | Loans Payable | Keybank Loans
Line of Credit Facility [Line Items]
Commitment fee (percent)					0.15%
Maximum | Loans Payable | Keybank Loans
Line of Credit Facility [Line Items]
Commitment fee (percent)					0.20%

Debt - Maturity of Debt (Detail

Debt - Maturity of Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019	Dec. 31, 2018
Summary of future principal repayments of all loans
2020		$ 6,882
2021		9,390
2022		9,826
2023		337,019
2024		439,302
Thereafter		1,176,653
Total principal	$ 2,182,615	1,979,072	$ 1,362,179
Unamortized debt premium/(discount)		(1,099)
Unamortized deferred loan costs		(8,869)
Debt, net	$ 2,174,352	$ 1,969,104	$ 1,353,531

Interest Rate Contracts - Narra

Interest Rate Contracts - Narrative (Details)	Jul. 01, 2020USD ($)	Mar. 10, 2020USD ($)contract	Aug. 31, 2018USD ($)swap_agreement	Sep. 30, 2020USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Jul. 09, 2015USD ($)swap_agreement
Derivative [Line Items]
Derivative notional amount					$ 850,000,000	$ 850,000,000
Income expected to be recognized in earnings in next 12 months				$ 13,800,000	2,800,000
Fair value of interest rate swap in a net asset liability position					24,146,000	$ 1,717,000
Interest Rate Swap Effective Date July 1, 2020, $425,000 Notional Amount
Derivative [Line Items]
Number of interest rate swap agreements executed | swap_agreement			4
Term of interest rate contracts			5 years
Derivative notional amount			$ 425,000,000
Interest Rate Swap
Derivative [Line Items]
Number of interest rate swap agreements executed		3	4				1
Term of interest rate contracts	5 years	5 years
Derivative notional amount	$ 425,000,000			750,000,000	850,000,000		$ 425,000,000
Fair value of interest rate swap in a net asset liability position				$ 58,852,000	$ 24,146,000
Interest Rate Swap, Effective March 10, 2020 - $150,000 Notional Amount, Interest Rate 0.83%
Derivative [Line Items]
Derivative notional amount		$ 150,000,000
Interest Rate Swap Effective Date July 1, 2020,$125,000 Notional Amount, Interest Rate 2.82%
Derivative [Line Items]
Derivative notional amount		100,000,000
Interest Rate Swap, Effective March 10, 2020 - $75,000 Notional Amount, Interest Rate 0.86%
Derivative [Line Items]
Derivative notional amount		$ 75,000,000

Interest Rate Contracts - Summa

Interest Rate Contracts - Summary of Interest Rate Swaps (Details) - USD ($)	Sep. 30, 2020	Jul. 01, 2020	Dec. 31, 2019	Dec. 31, 2018	Jul. 09, 2015
Derivative [Line Items]
Fair value of interest rate swap in a net asset liability position			$ (24,146,000)	$ (1,717,000)
Derivative notional amount			850,000,000	850,000,000
Interest Rate Swap
Derivative [Line Items]
Fair value of interest rate swap in a net asset liability position	$ (58,852,000)		(24,146,000)
Derivative notional amount	$ 750,000,000	$ 425,000,000	850,000,000		$ 425,000,000
Interest Rate Swap, Effective March 10, 2020 - $150,000 Notional Amount, Interest Rate 0.83%
Derivative [Line Items]
Interest strike rate (percent)	0.83%
Fair value of interest rate swap in a net asset liability position	$ (3,374,000)		0
Derivative notional amount	$ 150,000,000		0
Interest Rate Swap, Effective March 10, 2020 - $100,000 Notional Amount, Interest Rate 0.84%
Derivative [Line Items]
Interest strike rate (percent)	0.84%
Fair value of interest rate swap in a net asset liability position	$ (2,300,000)		0
Derivative notional amount	$ 100,000,000		0
Interest Rate Swap, Effective March 10, 2020 - $75,000 Notional Amount, Interest Rate 0.86%
Derivative [Line Items]
Interest strike rate (percent)	0.86%
Fair value of interest rate swap in a net asset liability position	$ (1,791,000)		0
Derivative notional amount	$ 75,000,000		$ 0
Interest Rate Swap Effective Date July 1, 2020,$125,000 Notional Amount, Interest Rate 2.82%
Derivative [Line Items]
Interest strike rate (percent)	2.82%		2.82%
Fair value of interest rate swap in a net asset liability position	$ (15,064,000)		$ (7,038,000)	(1,987,000)
Derivative notional amount	$ 125,000,000		$ 125,000,000	125,000,000
Interest Rate Swap Effective Date July 1, 2020
Derivative [Line Items]
Interest strike rate (percent)	2.82%		2.82%
Fair value of interest rate swap in a net asset liability position	$ (12,074,000)		$ (5,651,000)	(1,628,000)
Derivative notional amount	$ 100,000,000		$ 100,000,000	100,000,000
Interest Rate Swap Effective Date July 1, 2020
Derivative [Line Items]
Interest strike rate (percent)	2.83%		2.83%
Fair value of interest rate swap in a net asset liability position	$ (12,084,000)		$ (5,665,000)	(1,636,000)
Derivative notional amount	$ 100,000,000		$ 100,000,000	100,000,000
Interest Rate Swap Effective Date July 1, 2020
Derivative [Line Items]
Interest strike rate (percent)	2.84%		2.84%
Fair value of interest rate swap in a net asset liability position	$ (12,165,000)		$ (5,749,000)	(1,711,000)
Derivative notional amount	$ 100,000,000		$ 100,000,000	100,000,000
Interest Rate Swap Effective Date July 9, 2015
Derivative [Line Items]
Interest strike rate (percent)	1.69%		1.69%
Fair value of interest rate swap in a net asset liability position	$ 0		$ (43,000)	5,245,000
Derivative notional amount	$ 0		$ 425,000,000	$ 425,000,000

Interest Rate Contracts - Impac

Interest Rate Contracts - Impact of Interest Rate Swap on Consolidated Statements of Operation (Details) - Cash Flow Hedging - Interest Rate Swap - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Derivative [Line Items]
Amount recognized in AOCI on derivatives	$ (39,716)	$ (25,849)	$ (19,944)	$ (3,483)
Amount of loss (gain) reclassified from AOCI into earnings under "Interest expense"	5,104	(2,231)	(2,359)	(1,818)
Total interest expense presented in the consolidated statement of operations in which the effects of cash flow hedges are recorded	$ 59,321	$ 53,642	$ 73,557	$ 55,194

Accrued Expenses and Other Li_3

Accrued Expenses and Other Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Dec. 31, 2018
Payables and Accruals [Abstract]
Accrued tenant improvements	$ 26,891	$ 11,802	$ 0
Real estate taxes payable	18,899	13,385		$ 23,258
Prepaid tenant rent	17,429	20,510		15,204
Interest payable	10,011	12,264		9,310
Deferred compensation	8,687	9,209		0
Property operating expense payable	7,667	7,752		9,159
Accrued CIP	6,902	4,794		4,662
Other liabilities	21,771	16,673		19,023
Total	$ 118,257	96,389		$ 80,616
Deferred compensation		$ 9,200

Fair Value Measurements - Fair

Fair Value Measurements - Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019	Dec. 31, 2018
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate Swap Liability	$ (58,852)	$ (24,146)	$ (6,962)
Recurring basis
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Earn-out Liability (due to affiliates)		(2,919)	(29,380)
Corporate Owned Life Insurance Asset	4,070	2,134
Mutual Funds Asset	6,054	6,983
Deferred Compensation Liability	(8,687)	(9,209)
Recurring basis | Quoted Prices in Active Markets for Identical Assets and Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Earn-out Liability (due to affiliates)		0	0
Corporate Owned Life Insurance Asset	0	0
Mutual Funds Asset	6,054	6,983
Deferred Compensation Liability	0	0
Recurring basis | Significant Other Observable Inputs
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Earn-out Liability (due to affiliates)		0	0
Corporate Owned Life Insurance Asset	4,070	2,134
Mutual Funds Asset	0	0
Deferred Compensation Liability	(8,687)	(9,209)
Recurring basis | Significant Unobservable Inputs
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Earn-out Liability (due to affiliates)		(2,919)	(29,380)
Corporate Owned Life Insurance Asset	0	0
Mutual Funds Asset	0	0
Deferred Compensation Liability	0	0
Recurring basis | Interest Rate Swap
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate Swap Asset			5,245
Interest Rate Swap Liability	(58,852)	(24,146)	(6,962)
Recurring basis | Interest Rate Swap | Quoted Prices in Active Markets for Identical Assets and Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate Swap Asset			0
Interest Rate Swap Liability	0	0	0
Recurring basis | Interest Rate Swap | Significant Other Observable Inputs
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate Swap Asset			5,245
Interest Rate Swap Liability	(58,852)	(24,146)	(6,962)
Recurring basis | Interest Rate Swap | Significant Unobservable Inputs
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate Swap Asset			0
Interest Rate Swap Liability	$ 0	$ 0	$ 0

Fair Value Measurements - Narra

Fair Value Measurements - Narrative (Details) - USD ($)	Dec. 14, 2018	Dec. 31, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of earn-out contribution paid	$ 25,000,000
Cash earn-out as percentage of advisory fees (percent)	37.25%
Earn-out consideration limit as percentage of common equity invested (percent)	2.50%
Payment for contingent consideration		$ 0
Recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Change in amount of contingent liability		1,500,000
Estimated fair value of earn-out obligation		$ 2,919,000	$ 29,380,000

Fair Value Measurements - Non-r

Fair Value Measurements - Non-recurring Fair Value Measurements for Impairment (Details)	3 Months Ended	9 Months Ended
	Sep. 30, 2020USD ($)property	Sep. 30, 2020USD ($)loan	Dec. 31, 2019USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of properties impaired | property	3
Number of mortgage loans (in loan) | loan | loan		10
Significant Unobservable Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Terminal capitalization rate (percent)			6.00%
Discount rate (percent)			6.75%
Minimum | Significant Unobservable Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Market rent per Kilowatt-hour (kWh)			$ 80
Maximum | Significant Unobservable Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Market rent per Kilowatt-hour (kWh)			$ 90
2200 Channahon Road | Discounted Cash Flow Analyses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Terminal capitalization rate (percent)	9.75%	9.75%
Discount rate (percent)	14.00%	14.00%
2200 Channahon Road | Significant Unobservable Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Terminal capitalization rate (percent)			9.25%
Discount rate (percent)			10.50%
2200 Channahon Road | Minimum | Discounted Cash Flow Analyses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Market rent per Kilowatt-hour (kWh)	$ 2	$ 2
2200 Channahon Road | Minimum | Significant Unobservable Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Market rent per Kilowatt-hour (kWh)			$ 2
2200 Channahon Road | Maximum | Discounted Cash Flow Analyses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Market rent per Kilowatt-hour (kWh)	$ 3	$ 3
2200 Channahon Road | Maximum | Significant Unobservable Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Market rent per Kilowatt-hour (kWh)			$ 3
Houston Westway | Discounted Cash Flow Analyses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Terminal capitalization rate (percent)	7.75%	7.75%
Discount rate (percent)	9.00%	9.00%
Houston Westway | Significant Unobservable Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Terminal capitalization rate (percent)			7.75%
Discount rate (percent)			9.00%
Houston Westway | Minimum | Discounted Cash Flow Analyses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Market rent per Kilowatt-hour (kWh)	$ 15	$ 15
Houston Westway | Minimum | Significant Unobservable Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Market rent per Kilowatt-hour (kWh)			$ 15
Houston Westway | Maximum | Discounted Cash Flow Analyses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Market rent per Kilowatt-hour (kWh)	$ 17	$ 17
Houston Westway | Maximum | Significant Unobservable Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Market rent per Kilowatt-hour (kWh)			$ 17
2275 Cabot Drive | Discounted Cash Flow Analyses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Terminal capitalization rate (percent)	9.00%	9.00%
Discount rate (percent)	10.25%	10.25%
2275 Cabot Drive | Minimum | Discounted Cash Flow Analyses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Market rent per Kilowatt-hour (kWh)	$ 11	$ 11
2275 Cabot Drive | Maximum | Discounted Cash Flow Analyses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Market rent per Kilowatt-hour (kWh)	$ 12	$ 12

Fair Value Measurements - Finan

Fair Value Measurements - Financial Instruments at Fair Value (Details) - Mortgages - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019	Dec. 31, 2018
Fair Value | BOA Loan | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of mortgage loans	$ 357,417	$ 369,343
Fair Value | BOA/KeyBank Loan | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of mortgage loans	263,840	264,101	$ 0
Fair Value | AIG Loan II | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of mortgage loans	120,651	122,258	0
Fair Value | AIG Loan | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of mortgage loans	103,110	101,663	108,032
Fair Value | Midland Mortgage Loan | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of mortgage loans	98,077	99,318
Fair Value | Samsonite Loan | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of mortgage loans	21,418	22,103	22,440
Fair Value | HealthSpring Mortgage Loan | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of mortgage loans	20,621	20,868
Fair Value | Pepsi Bottling Ventures | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of mortgage loans	19,054	0
Fair Value | Highway 94 loan | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of mortgage loans	14,663	15,101	15,601
Fair Value | Emporia Partners Mortgage Loan | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of mortgage loans	1,780	2,105
Carrying Value | BOA Loan
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of mortgage loans	375,000	375,000
Carrying Value | BOA/KeyBank Loan
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of mortgage loans	250,000	250,000	0
Carrying Value | AIG Loan II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of mortgage loans	126,970	126,970	0
Carrying Value | AIG Loan
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of mortgage loans	104,352	105,762	107,562
Carrying Value | Midland Mortgage Loan
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of mortgage loans	98,687	100,249
Carrying Value | Samsonite Loan
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of mortgage loans	20,418	21,154	22,085
Carrying Value | HealthSpring Mortgage Loan
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of mortgage loans	20,340	20,723
Carrying Value | Pepsi Bottling Ventures
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of mortgage loans	18,677	0
Carrying Value | Highway 94 loan
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of mortgage loans	14,922	15,610	$ 16,497
Carrying Value | Emporia Partners Mortgage Loan
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of mortgage loans	$ 1,749	$ 2,104

Equity - Narrative (Details)

Equity - Narrative (Details) $ / shares in Units, $ in Thousands	Jan. 15, 2020USD ($)shares	May 01, 2019USD ($)shares	Sep. 30, 2020USD ($)voteshares		Dec. 31, 2019USD ($)voteshares		Dec. 31, 2019USD ($)voteshares		Sep. 30, 2020USD ($)voteshares		Dec. 31, 2019USD ($)voteshares		Sep. 30, 2019USD ($)	Dec. 31, 2019USD ($)voteshares		Sep. 30, 2020USD ($)vote$ / sharesshares		Dec. 31, 2019USD ($)voteshares		Apr. 30, 2019shares	Mar. 01, 2019shares	Dec. 31, 2018USD ($)shares		Jun. 30, 2015shares
Class of Stock [Line Items]
Number of shares outstanding (in shares)			229,775,115		227,853,720		227,853,720		229,775,115		227,853,720			227,853,720		229,775,115		227,853,720		78,054,934	252,863,421	174,278,341
Proceeds from sale of shares | $													$ 2,700,000	$ 2,700,000		$ 2,800,000		$ 2,700,000
Number of shares issued (shares)			283,769,972						283,769,972							283,769,972
Shares issued | $			$ 230	[1]	$ 228	[1]	$ 228	[1]	$ 230	[1]	$ 228	[1]		228	[1]	$ 230	[1]	228	[1]			$ 174	[2]
Implied EA-1 common stock issued in consideration			283,769,972						283,769,972							283,769,972
Share Redemption Program
Class of Stock [Line Items]
Minimum ownership balance (shares) | $			$ 2,500		2,500		2,500		$ 2,500		$ 2,500			2,500		$ 2,500		2,500
Minimum holding period for stock to be redeemed from stockholder by the Company									1 year		1 year
Quarterly cap | $					$ 117,200		117,200				$ 117,200			117,200				117,200
Share Redemption Program | Maximum
Class of Stock [Line Items]
Aggregate redemption of Company's shares (percent)					5.00%				5.00%		5.00%
Signature Office REIT Merger
Class of Stock [Line Items]
Number of shares issued (shares)																								43,772,611
Implied EA-1 common stock issued in consideration																								43,772,611
Distribution Reinvestment Plan
Class of Stock [Line Items]
Period for written notice											10 days
Shares issued | $			$ 310,800		$ 293,700		$ 293,700		$ 310,800		$ 293,700			$ 293,700		$ 310,800		$ 293,700				252,800
Private Placement [Member]
Class of Stock [Line Items]
Number of shares issued (shares)					281,468,830		281,468,830				281,468,830			281,468,830				281,468,830						43,772,611
Implied EA-1 common stock issued in consideration					281,468,830		281,468,830				281,468,830			281,468,830				281,468,830						43,772,611
Common Class T
Class of Stock [Line Items]
Number of votes each share is entitled to | vote			1		1		1		1		1			1		1		1
Number of shares outstanding (in shares)			555,730		407,773		407,773		555,730		407,773			407,773		555,730		407,773
Common Class S
Class of Stock [Line Items]
Number of votes each share is entitled to | vote			1		1		1		1		1			1		1		1
Number of shares outstanding (in shares)			1,800		1,790		1,790		1,800		1,790			1,790		1,800		1,790
Common Class D
Class of Stock [Line Items]
Number of votes each share is entitled to | vote			1		1		1		1		1			1		1		1
Number of shares outstanding (in shares)			40,791		25,860		25,860		40,791		25,860			25,860		40,791		25,860
Common Class I
Class of Stock [Line Items]
Number of votes each share is entitled to | vote			1		1		1		1		1			1		1		1
Number of shares outstanding (in shares)			1,894,561		1,607,399		1,607,399		1,894,561		1,607,399			1,607,399		1,894,561		1,607,399
Common Class A
Class of Stock [Line Items]
Number of votes each share is entitled to | vote			1		1		1		1		1			1		1		1
Number of shares outstanding (in shares)			24,227,432		24,035,934		24,035,934		24,227,432		24,035,934			24,035,934		24,227,432		24,035,934
Common Class AA
Class of Stock [Line Items]
Number of votes each share is entitled to | vote			1		1		1		1		1			1		1		1
Number of shares outstanding (in shares)			47,184,766		46,675,314		46,675,314		47,184,766		46,675,314			46,675,314		47,184,766		46,675,314
Common Class AAA
Class of Stock [Line Items]
Number of votes each share is entitled to | vote			1		1		1		1		1			1		1		1
Number of shares outstanding (in shares)			917,756		947,992		947,992		917,756		947,992			947,992		917,756		947,992
Common Class E
Class of Stock [Line Items]
Number of votes each share is entitled to | vote			1		1		1		1		1			1		1		1
Number of shares outstanding (in shares)			154,952,279		154,151,658		154,151,658		154,952,279		154,151,658			154,151,658		154,952,279		154,151,658
Number of shares issued (shares)																				174,981,547
Implied EA-1 common stock issued in consideration																				174,981,547
Common Class E | Share Redemption Program
Class of Stock [Line Items]
Excess of quarterly cap limitation (in shares)					2,872,488
Excess of quarterly cap limitation | $					$ 27,400
Percentage of redemption requests not redeemed (percent)					25.00%
Common Class E | Private Placement [Member]
Class of Stock [Line Items]
Number of shares issued (shares)																				174,981,547
Implied EA-1 common stock issued in consideration																				174,981,547
Common Stock
Class of Stock [Line Items]
Perpetual convertible preferred shares and Common stock subject to redemption | $			$ 1,332		$ 20,565		$ 20,565		$ 1,332		$ 20,565			$ 20,565		$ 1,332		$ 20,565				$ 11,523
Number of shares contingently entitled to be received for each RSU (shares)			1						1							1
Common Stock | Share Redemption Program
Class of Stock [Line Items]
Stock redeemed during period (in shares)																25,472,376
Stock redeemed, value | $																$ 240,000		228,700
Weighted average price per share (in usd per share) | $ / shares																$ 9.42
Redemption requests that were not redeemed (shares)			693,199
RSUs
Class of Stock [Line Items]
RSU's issued (in shares)	589,248
Shares vested in period (shares)							252,353
Vesting installments (percent)		25.00%
Fair value of grants issued | $	$ 5,500	$ 9,700
Total forfeitures (shares)							9,124		3,209
Total compensation expense | $											2,400
Unrecognized compensation expense | $					$ 7,200		$ 7,200				$ 7,200			$ 7,200				$ 7,200
Recognition period for unrecognized expense											3 years
Vesting (percent)	25.00%
Chief Executive Officer
Class of Stock [Line Items]
Initial term											5 years
Renewal term											1 year
Mr. Escalante | RSUs
Class of Stock [Line Items]
RSU's issued (in shares)		732,218
Mr. Bitar | RSUs
Class of Stock [Line Items]
RSU's issued (in shares)		104,603
Mr. Hirsch | RSUs
Class of Stock [Line Items]
RSU's issued (in shares)		67,992
Mr. Sohn | RSUs
Class of Stock [Line Items]
RSU's issued (in shares)		52,301
Mr. Tausk | RSUs
Class of Stock [Line Items]
RSU's issued (in shares)		52,301
[1]	See Note 9, Equity, for the number of shares outstanding of each class of common stock as of September 30, 2020.
[2]	See Note 10, Equity, for the number of shares outstanding of each class of common stock as of December 31, 2019.

Equity - Schedule of Redemption

Equity - Schedule of Redemption Activity (Details) - Common Stock - Share Redemption Program - $ / shares	3 Months Ended		9 Months Ended		12 Months Ended		65 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019
Class of Stock [Line Items]
Stock redeemed during period (in shares)	693,199	10,589,361	1,241,812	10,589,361	20,933,322	8,695,600	24,230,565
Weighted average price per share (in dollars per share)	$ 8.86	$ 9.54	$ 9.07	$ 9.54	$ 9.44	$ 9.61	$ 9.44

Equity - Schedule of Distributi

Equity - Schedule of Distributions Paid (Details) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Equity [Abstract]
Ordinary income (in usd per share)	$ 0.22	$ 0.32	$ 0.40
Ordinary income (percent)	37.00%	47.00%	59.00%
Capital gain (in usd per share)	$ 0.08	$ 0	$ 0.18
Capital gain (percent)	13.00%	0.00%	26.00%
Return of capital (in usd per share)	$ 0.30	$ 0.36	$ 0.10
Return of capital (percent)	50.00%	53.00%	15.00%
Total distributions paid (in usd per share)	$ 0.60	$ 0.68	$ 0.68
Total distributions paid (percent)	100.00%	100.00%	100.00%

Noncontrolling Interests (Detai

Noncontrolling Interests (Details) - shares	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019	Dec. 31, 2018
Noncontrolling Interest [Line Items]
Percentage of noncontrolling interest based on weighted average shares	12.01%	12.02%
Limited partnership units issued (in shares)	31,800,000	31.6
Limited partnership units with mandatory hold period (in shares)	20,400,000
Repurchase of noncontrolling interest (shares)	134,383	6,000	0
Implied EA-1 operating partnership units issued in consideration	200,000	0.2
Partnership unite exchange, in shares	1	1
Griffin Capital Essential Asset Operating Partnership, L.P.
Noncontrolling Interest [Line Items]
Percentage of noncontrolling interests based on total shares	12.20%	12.08%

Noncontrolling Interests - Acti

Noncontrolling Interests - Activity for Noncontrolling Interests (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended	12 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Reclass of noncontrolling interest subject to redemption	$ 10	$ 253						$ 3
Repurchase of noncontrolling interest	641	496
Issuance of stock dividend for noncontrolling interest		266	$ 802	$ 800	$ 269			1,861
Distributions to noncontrolling interests	(2,756)	(2,731)	(5,069)	(5,108)	(4,903)	$ (4,585)		(19,716)	$ (4,368)	$ (4,369)
Net Income	(9,773)	3,758	848	10,088	16,088	6,530		28,536	18,407	145,777
Other comprehensive income (loss)	2,498	(6,284)	(30,826)	(7,391)	(12,803)	(8,137)		(22,520)	(5,179)	7,356
Non-controlling Interests
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance			245,040			232,203	$ 245,040	232,203	31,105
Contributions/issuance of noncontrolling interests							0	30,039	205,000
Reclass of noncontrolling interest subject to redemption	10	253					263	3
Repurchase of noncontrolling interest	641	496					(1,137)	0
Issuance of stock dividend for noncontrolling interest		266	802	800	269		1,068	1,861	0
Distributions to noncontrolling interests	(2,756)	(2,731)	(5,069)	(5,108)	(4,903)	(4,585)	(10,556)	(19,716)	(4,368)	(4,369)
Allocated distributions to noncontrolling interests subject to redemption							(23)	(42)	(13)
Net Income	(1,166)	457	111	1,149	1,880	1,197	(598)	3,749	789	5,120
Other comprehensive income (loss)	299	$ (756)	$ (3,708)	$ (835)	$ (1,489)	$ (1,408)	(4,165)	(3,054)	(310)	254
Ending balance	$ 229,892						$ 229,892	$ 245,040	$ 232,203	$ 31,105

Perpetual Convertible Preferr_2

Perpetual Convertible Preferred Equity - Narrative (Details) $ / shares in Units, $ in Millions	Aug. 08, 2018USD ($)tranche$ / sharesshares	Dec. 31, 2019$ / shares
Temporary Equity [Line Items]
Redemption price per share (in usd per share) | $ / shares		$ 25
Cumulative Perpetual Convertible Preferred Stock
Temporary Equity [Line Items]
Stock price (in usd per share) | $ / shares	$ 25
Restricted period before transferring shares	5 years
Redemption fee (percent)		1.50%
Preferred Stock Issuance | Cumulative Perpetual Convertible Preferred Stock
Temporary Equity [Line Items]
Aggregate number of shares purchased (shares) | shares	10,000,000
Preferred Stock First Issuance | Cumulative Perpetual Convertible Preferred Stock
Temporary Equity [Line Items]
Aggregate number of shares purchased (shares) | shares	5,000,000
Sale of Stock, Number of Tranches | tranche	2
Total purchase price | $	$ 125
Transaction fees (percent)	3.50%
Transaction-related expenses | $	$ 0.4
Percentage of applicable varying rate (percent)	25.00%
Redemption period		5 years
Conversion period from issuance		5 years
Preferred Stock Secondary Issuance | Cumulative Perpetual Convertible Preferred Stock
Temporary Equity [Line Items]
Aggregate number of shares purchased (shares) | shares	5,000,000
Total purchase price | $	$ 125
Number of additional shares to be issued (shares) | shares	5,000,000
Conversion period from issuance		5 years
Preferred Stock, Triggering Event | Cumulative Perpetual Convertible Preferred Stock
Temporary Equity [Line Items]
Redemption price per share (in usd per share) | $ / shares		$ 25
Advisor
Temporary Equity [Line Items]
Reimbursable transaction related expenses | $	$ 0.2
Reference Period One | From and After First issuance Until Fifth Anniversary | Preferred Stock First Issuance | Cumulative Perpetual Convertible Preferred Stock
Temporary Equity [Line Items]
Initial annual distribution rate (percent)		6.55%
Reference Period One | From and After Second Issuance Date Until Fifth Anniversary | Preferred Stock Secondary Issuance | Cumulative Perpetual Convertible Preferred Stock
Temporary Equity [Line Items]
Initial annual distribution rate (percent)		6.55%
Reference Period One | From and After Reset Date | Cumulative Perpetual Convertible Preferred Stock
Temporary Equity [Line Items]
Initial annual distribution rate (percent)		6.75%
Reference Period Two | After First Triggering Event but Before Reset Date | Cumulative Perpetual Convertible Preferred Stock
Temporary Equity [Line Items]
Initial annual distribution rate (percent)		7.55%
Reference Period Two | After First Triggering Event and Also After Reset Date | Preferred Stock, Reset Date | Cumulative Perpetual Convertible Preferred Stock
Temporary Equity [Line Items]
Initial annual distribution rate (percent)		7.75%
Reference Period Three | Preferred Stock, Reset Date | Cumulative Perpetual Convertible Preferred Stock
Temporary Equity [Line Items]
Initial annual distribution rate (percent)		8.25%
Reference Period Three | Preferred Stock, Triggering Event | Cumulative Perpetual Convertible Preferred Stock
Temporary Equity [Line Items]
Initial annual distribution rate (percent)		8.05%

Related Party Transactions - Sc

Related Party Transactions - Schedule of Related Party Transactions (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Related Party Transaction [Line Items]
Incurred for the Year Ended December 31,			$ 25,244	$ 45,084	$ 44,013
Payable	$ 5,155		10,883	42,406
Operating expenses
Related Party Transaction [Line Items]
Incurred for the Year Ended December 31,			0	3,594	2,652
Payable			0	74
Asset management fees
Related Party Transaction [Line Items]
Incurred for the Year Ended December 31,			0	23,668	23,499
Payable			0	0
Property management fees
Related Party Transaction [Line Items]
Incurred for the Year Ended December 31,			0	9,479	9,782
Payable			0	875
Disposition fees
Related Party Transaction [Line Items]
Incurred for the Year Ended December 31,	0	$ 641	641	177	1,950
Payable	0		0	0
Costs advanced by the advisor
Related Party Transaction [Line Items]
Incurred for the Year Ended December 31,	1,546	2,571	3,771	546	587
Payable	1,120		1,164	341
Consulting fee - shared services
Related Party Transaction [Line Items]
Incurred for the Year Ended December 31,	1,875	1,874	2,500	0	0
Payable	631		441	0
Acquisition fees
Related Party Transaction [Line Items]
Incurred for the Year Ended December 31,	0	942	942	5,331	3,791
Payable	0		0	0
Leasing commissions
Related Party Transaction [Line Items]
Incurred for the Year Ended December 31,	0	596	2,540	2,289	1,752
Payable	0		0	0
Earn-out
Related Party Transaction [Line Items]
Incurred for the Year Ended December 31,	0	0	0	0	0
Payable	338		2,919	29,380
Other Fees
Related Party Transaction [Line Items]
Incurred for the Year Ended December 31,	0	20	20	0	0
Payable	0		0	11,734
Incurred fees	150	0	0	0	0
Receivable	201	352	352	11,734
Stockholder Servicing Fee
Related Party Transaction [Line Items]
Incurred for the Year Ended December 31,	0	693	692	0	0
Payable	2,354		4,994	0
Distributions
Related Party Transaction [Line Items]
Incurred for the Year Ended December 31,	8,353	10,089	14,138	0	0
Payable	712		1,365	2
Cash to be received from an affiliate related to deferred compensation and other payroll costs
Related Party Transaction [Line Items]
Incurred fees	0	658	658	0	0
Receivable	0	0	0	7,951
Total
Related Party Transaction [Line Items]
Incurred for the Year Ended December 31,	11,774	17,426
Payable	5,155		10,883
Griffin Capital Corporation | Payroll/Expense Allocation
Related Party Transaction [Line Items]
Incurred fees	300	321	481	0	0
Receivable	781	481	481	0
Griffin Capital Corporation | Reimbursable Expense Allocation
Related Party Transaction [Line Items]
Incurred fees	16	0	4	0	0
Receivable	5	4	4	0
Griffin Capital Essential Asset REIT II
Related Party Transaction [Line Items]
Incurred fees	466	8,728	8,892	0	0
Receivable	987	837	837	19,685
Griffin Capital Essential Asset REIT II | Payroll/Expense Allocation
Related Party Transaction [Line Items]
Incurred fees	0	1,217	1,217	0	0
Receivable	0	0	0	0
Griffin Capital Essential Asset REIT II | O&O Costs (including payroll allocated to O&O)
Related Party Transaction [Line Items]
Incurred fees	0	157	157	0	0
Receivable	0	0	0	0
Griffin Capital Essential Asset REIT II | Other Fees
Related Party Transaction [Line Items]
Incurred fees	0	6,375	6,375	0	$ 0
Receivable	$ 0	$ 0	$ 0	$ 0

Related Party Transactions - Na

Related Party Transactions - Narrative (Details) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Administrative Service Agreement | Griffin Capital Corporation
Related Party Transaction [Line Items]
Amount of transaction	$ 187,167	$ 187,167

Operating Leases - Narrative (D

Operating Leases - Narrative (Details)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2020USD ($)leasenumberOfRenewals	Sep. 30, 2019USD ($)	Sep. 30, 2020USD ($)leasenumberOfRenewals	Sep. 30, 2019USD ($)	Dec. 31, 2019USD ($)lease	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Sep. 20, 2019USD ($)	May 01, 2019USD ($)	Mar. 01, 2019USD ($)	Jan. 01, 2019USD ($)lease
Lessee, Lease, Description [Line Items]
Rental income			$ 234,900,000	$ 212,800,000	$ 291,400,000
Number of parcels of land | lease					3						2
Weighted average remaining lease term	80 years 3 months 18 days		80 years 3 months 18 days		80 years 10 months 24 days
Operating lease costs	$ 900,000	$ 700,000	$ 2,800,000	1,900,000	$ 2,800,000
Cash paid for operating lease liabilities	400,000	$ 300,000	1,200,000	$ 800,000	1,200,000
Lease income						$ 247,442,000	$ 257,465,000
Lease liability	45,486,000		45,486,000		45,020,000	0		$ 16,300,000	$ 600,000	$ 600,000
Lease discount rate										0.0394
Right of use asset	$ 40,286,000		$ 40,286,000		$ 41,347,000	$ 0		$ 16,300,000
Accounting Standards Update 2016-02
Lessee, Lease, Description [Line Items]
Lease liability											$ 27,600,000
Right of use asset											$ 25,500,000
Chicago Illinois Office
Lessee, Lease, Description [Line Items]
Weighted average remaining lease term	5 years		5 years		6 years
Right of use asset									$ 600,000	$ 600,000
Arizona
Lessee, Lease, Description [Line Items]
Number of parcels of land | lease	3		3
Options to renew | numberOfRenewals	0		0

Operating Leases - Future Minim

Operating Leases - Future Minimum Base Rents to be Received (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Leases [Abstract]
Remaining 2020	$ 72,450	$ 288,579
2021	303,943	296,570
2022	305,905	298,582
2023	292,005	284,369
2024	251,481	248,114
Thereafter	1,137,808	1,089,718
Total	$ 2,363,592	$ 2,505,932

Operating Leases - Remaining R

Operating Leases - Remaining Required Payments Under Ground Leases (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019	Sep. 20, 2019	May 01, 2019	Mar. 01, 2019	Dec. 31, 2018
Leases [Abstract]
Remaining 2020	$ 407
2021	1,632	$ 1,629
2022	1,675	1,632
2023	1,741	1,675
2024	1,776	1,741
2024		1,776
Thereafter	286,738	286,739
Total undiscounted lease payments	293,969	295,192
Less imputed interest	(248,483)	(250,172)
Total lease liabilities	$ 45,486	$ 45,020	$ 16,300	$ 600	$ 600	$ 0

Operating Leases - Cash paid fo

Operating Leases - Cash paid for Measurement of Lease Liabilities (Details)	Sep. 30, 2020	Dec. 31, 2019
Leases [Abstract]
Weighted-average remaining lease term in years.	80 years 3 months 18 days	80 years 10 months 24 days
Weighted-average discount rate	4.98%	4.98%

Operating Leases - Future min_2

Operating Leases - Future minimum payments (Details) $ in Thousands	Dec. 31, 2018USD ($)
Leases [Abstract]
2019	$ 1,032
2020	1,032
2021	1,032
2022	1,072
2023	1,422
Thereafter	199,024
Total	$ 204,614

Declaration of Distributions -

Declaration of Distributions - (Details) - $ / shares	Sep. 29, 2020	Aug. 25, 2020	Jul. 28, 2020	Jun. 15, 2020	Dec. 18, 2019	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2018
Declaration of Distributions [Abstract]
Stock distribution declared (in usd per share)	$ 0.000956284	$ 0.000956284	$ 0.000956284	$ 0.000956284
Common stock dividends, annualized equivalent (in usd per share)	$ 0.35	$ 0.35	$ 0.35	$ 0.35	$ 0.10
Dividends paid per share (in usd per share)							$ 0.001506849
Stock distribution paid, per share (usd per share)							0.000273973
Dividends per share declared (in usd per share)					0.001502732	$ 0.09		$ 0.13	$ 0.32	$ 0.46
Dividends declared per share, monthly (in usd per share)					0.008333333
Common Stock, par value (in usd per share)					$ 0.001	$ 0.001	$ 0.001		$ 0.001		$ 0.001

Selected Quarterly Financial _3

Selected Quarterly Financial Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended									9 Months Ended		12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Summary of quarterly financial information
Rental income	$ 100,002	$ 109,832	$ 97,435	$ 103,356	$ 76,485	$ 84,927	$ 85,041	$ 85,991	$ 80,399	$ 301,157	$ 277,276	$ 387,108	$ 336,359	$ 346,490
Income before other income and (expenses)	17,053	1,891	22,158	37,634	16,579	17,716	19,012	20,808	20,442	59,631	76,371	78,262	77,980	82,294
Net income (loss)	(7,475)	(2,043)	12,216	18,215	8,656	3,267	4,329	7,799	6,641	1,347	39,087	37,044	22,038	146,133
Net income (loss) attributable to common stockholders	$ (8,607)	$ (3,693)	$ 8,939	$ 14,208	$ 5,333	$ 1,012	$ 2,854	$ 7,431	$ 6,319	$ (4,569)	$ 28,480	$ 24,787	$ 17,618	$ 140,657
Net income (loss) attributable to common stockholders per share (in dollars per share)	$ (0.04)	$ (0.02)	$ 0.04	$ 0.06	$ 0.03	$ 0.01	$ 0.02	$ 0.04	$ 0.04	$ (0.02)	$ 0.13	$ 0.11	$ 0.10	$ 0.80

Subsequent Events - (Details)

Subsequent Events - (Details) $ / shares in Units, $ in Thousands	Nov. 04, 2020USD ($)shares	Oct. 19, 2020$ / shares	Sep. 29, 2020$ / shares	Aug. 25, 2020$ / shares	Jul. 28, 2020$ / shares	Jun. 15, 2020$ / shares	Feb. 27, 2020USD ($)shares	Dec. 18, 2019$ / shares	Sep. 20, 2017USD ($)	Oct. 28, 2020USD ($)	Sep. 30, 2020USD ($)propertystate$ / sharesshares	Sep. 30, 2019$ / shares	Sep. 30, 2020USD ($)propertystate$ / sharesshares	Sep. 30, 2019$ / shares	Dec. 31, 2019USD ($)propertystate$ / sharesshares	Sep. 30, 2020USD ($)propertystate$ / sharesshares	Nov. 06, 2020numberOfLeaseConcessions	Oct. 29, 2020USD ($)ft²propertystate$ / shares	Oct. 01, 2020	Feb. 05, 2020USD ($)ft²	Apr. 30, 2019$ / sharesshares	Dec. 31, 2018USD ($)$ / shares
Subsequent Event [Line Items]
Stock distribution declared (in usd per share)			$ 0.000956284	$ 0.000956284	$ 0.000956284	$ 0.000956284
Cash distribution declared per common share (in usd per share)								$ 0.001502732			$ 0.09	$ 0.13	$ 0.32	$ 0.46
Asset value | $											$ 4,223,950		$ 4,223,950		$ 4,175,502	$ 4,223,950						$ 3,012,775
Number of properties owned | property											99		99		99	99
Number of states | state											25		25		25	25
Purchase price | $											$ 4,200,000		$ 4,200,000		$ 4,200,000	$ 4,200,000
Weighted average remaining lease term											80 years 3 months 18 days		80 years 3 months 18 days		80 years 10 months 24 days	80 years 3 months 18 days
Common Stock, par value (in usd per share)								$ 0.001			$ 0.001		$ 0.001		$ 0.001	$ 0.001						$ 0.001
Number of shares issued (shares) | shares											283,769,972		283,769,972			283,769,972
Follow-on Offering
Subsequent Event [Line Items]
Number of shares issued (shares) | shares											12,250,750		12,250,750		8,412,006	12,250,750
Proceeds from issuance of private placement | $									$ 2,200,000						$ 80,700	$ 116,400
Distribution Reinvestment Plan
Subsequent Event [Line Items]
Proceeds from issuance of private placement | $									$ 200,000
Subsequent Event
Subsequent Event [Line Items]
Approx. Square Feet (in sqft) | ft²																				526,320
Purchase price | $																				$ 34,900
Area of properties (in sq ft) | ft²																				526,320
Number of lease concessions | numberOfLeaseConcessions																	2
Subsequent Event | Follow-on Offering
Subsequent Event [Line Items]
Proceeds from issue of common stock | $							$ 23,100
Number of shares issued (shares) | shares							2,400,777
Subsequent Event | Distribution Reinvestment Plan
Subsequent Event [Line Items]
Number of shares issued (shares) | shares	32,707,229
Proceeds from issue of common stock | $							$ 302,000
Number of shares issued (shares) | shares							31,171,505
Proceeds from issuance of private placement | $	$ 315,800
Subsequent Event | CCIT II Merger
Subsequent Event [Line Items]
Asset value | $																		$ 5,800,000
Number of properties owned | property																		125
Number of states | state																		26
Approx. Square Feet (in sqft) | ft²																		31,000,000
Area of properties (in sq ft) | ft²																		31,000,000
Percentage of combined portfolio leased (percent)																		90.00%
Weighted average remaining lease term																		7 years 4 months 24 days
Percentage of combined portfolio leased to tenants or guarantors with investment Grade equivalent ratings (percent)																		58.00%
Maximum individual representation by a tenant of Combined Company's net rent (percent)																		3.30%
Share of Combined Company's net rents by top ten tenants (percent)																		25.00%
Termination fee paid | $										$ 7,380
CMFT expenses to be paid | $																		$ 3,690
Merger agreement threshold on acquisition proposal as a percentage of equity or assets (percent)																		50.00%
Termination fee to be paid if acquisition proposal of 50% or more is consummated | $																		$ 18,450
Termination fee under Termination Agreement | $																		$ 1,750
Revolving Credit Facility | Line of Credit | Subsequent Event
Subsequent Event [Line Items]
Threshold increase in asset value required for mergers (percent)																			25.00%
Common Class E
Subsequent Event [Line Items]
Common Stock, par value (in usd per share)																					$ 0.001
Number of shares issued (shares) | shares																					174,981,547
Common Class E | Subsequent Event
Subsequent Event [Line Items]
Stock distribution declared (in usd per share)		$ 0.000956284
Cash distribution declared per common share (in usd per share)		0.35
Common Class E | Subsequent Event | CCIT II Merger
Subsequent Event [Line Items]
Common Stock, par value (in usd per share)																		$ 0.001
Number of shares to be received for each share converted																		1.392%
Common Class T | Subsequent Event
Subsequent Event [Line Items]
Stock distribution declared (in usd per share)		0.000956284
Cash distribution declared per common share (in usd per share)		0.35
Common Class T | Subsequent Event | CCIT II Merger
Subsequent Event [Line Items]
Common Stock, par value (in usd per share)																		$ 0.01
Common Class D | Subsequent Event
Subsequent Event [Line Items]
Stock distribution declared (in usd per share)		0.000956284
Cash distribution declared per common share (in usd per share)		0.35
Common Class S | Subsequent Event
Subsequent Event [Line Items]
Stock distribution declared (in usd per share)		0.000956284
Cash distribution declared per common share (in usd per share)		0.35
Common Class I | Subsequent Event
Subsequent Event [Line Items]
Stock distribution declared (in usd per share)		0.000956284
Cash distribution declared per common share (in usd per share)		0.35
Common Class A | Subsequent Event
Subsequent Event [Line Items]
Stock distribution declared (in usd per share)		0.000956284
Cash distribution declared per common share (in usd per share)		0.35
Common Class A | Subsequent Event | CCIT II Merger
Subsequent Event [Line Items]
Common Stock, par value (in usd per share)																		$ 0.01
Common Class AA | Subsequent Event
Subsequent Event [Line Items]
Stock distribution declared (in usd per share)		0.000956284
Cash distribution declared per common share (in usd per share)		0.35
Common Class AAA | Subsequent Event
Subsequent Event [Line Items]
Stock distribution declared (in usd per share)		0.000956284
Cash distribution declared per common share (in usd per share)		$ 0.35

Schedule III Real Estate Asse_2

Schedule III Real Estate Assets and Accumulated Depreciation and Amortization - Schedule III (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Real Estate Properties [Line Items]
Encumbrances	$ 1,017,571
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	463,960
Building and Improvements	3,622,552
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	191,921
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	458,339
Building and Improvements	3,820,094
Total	4,278,433	$ 3,073,364	$ 2,869,328	$ 3,024,389
Accumulated Depreciation and Amortization	668,104	$ 538,412	$ 426,752	$ 338,552
Loan valuation discount	1,100
Aggregate cost of real estate owned for income tax purposes	$ 4,200,000
Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Plainfield | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Plainfield | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Renfro | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Renfro | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Emporia Partners | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Emporia Partners | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
AT&T | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
AT&T | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Westinghouse | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Westinghouse | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
TransDigm | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
TransDigm | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Atrium II | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Atrium II | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Zeller Plastik | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Zeller Plastik | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Northrop Grumman | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Northrop Grumman | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Health Net | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Health Net | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Comcast | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Comcast | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
500 Rivertech | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
500 Rivertech | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Schlumberger | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Schlumberger | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
UTC | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
UTC | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Avnet | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Avnet | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Cigna | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Cigna | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Nokia | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Nokia | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Verizon | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Verizon | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Fox Head | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Fox Head | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
2500 Windy Ridge | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
2500 Windy Ridge | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
General Electric | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
General Electric | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Atlanta Wildwood | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Atlanta Wildwood | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Community Insurance | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Community Insurance | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Anthem | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Anthem | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
JPMorgan Chase | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
JPMorgan Chase | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Sterling Commerce Center | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Sterling Commerce Center | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Aetna. | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Aetna. | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
CHRISTUS Health | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
CHRISTUS Health | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Roush Industries | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Roush Industries | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Parkland Center | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Parkland Center | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
1200 Morris | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
1200 Morris | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
United HealthCare | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
United HealthCare | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Intermec (Northpointe Corporate Center II) | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Intermec (Northpointe Corporate Center II) | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Comcast (Northpointe Corporate Center I) | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Comcast (Northpointe Corporate Center I) | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Farmers | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Farmers | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
2200 Channahon Road | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
2200 Channahon Road | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Digital Globe | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Digital Globe | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Waste Management | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Waste Management | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Wyndham Worldwide | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Wyndham Worldwide | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
ACE Hardware Corporation HQ | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
ACE Hardware Corporation HQ | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Equifax | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Equifax | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
American Express | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
American Express | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
SoftBank | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
SoftBank | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Vanguard | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Vanguard | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Parallon | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Parallon | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
TW Telecom | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
TW Telecom | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Equifax II | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Equifax II | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Mason I | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Mason I | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Wells Fargo. | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Wells Fargo. | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
GE Aviation | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
GE Aviation | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Westgate III | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Westgate III | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
2275 Cabot Drive | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
2275 Cabot Drive | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Franklin Center | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Franklin Center | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
4650 Lakehurst Court | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
4650 Lakehurst Court | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Miramar | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Miramar | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Royal Ridge V | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Royal Ridge V | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Duke Bridges | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Duke Bridges | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Houston Westway II | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Houston Westway II | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Houston Westway I | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Houston Westway I | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Atlanta Perimeter | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Atlanta Perimeter | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
South Lake at Dulles | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
South Lake at Dulles | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Four Parkway | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Four Parkway | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Highway 94 | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Highway 94 | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Heritage IV | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Heritage IV | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Samsonite | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Samsonite | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Restoration Hardware | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Restoration Hardware | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
HealthSpring | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
HealthSpring | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
LPL | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
LPL | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
LPL | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
LPL | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Quaker | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Quaker | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Operating Properties
Real Estate Properties [Line Items]
Encumbrances	$ 0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	1,955
Building and Improvements	15,540
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	1,362
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	1,955
Building and Improvements	16,902
Total	18,857
Accumulated Depreciation and Amortization	3,395
Operating Properties | Plainfield
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	3,709
Building and Improvements	22,209
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	7,344
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	3,709
Building and Improvements	29,553
Total	33,262
Accumulated Depreciation and Amortization	14,206
Operating Properties | Renfro
Real Estate Properties [Line Items]
Encumbrances	12,816
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	1,400
Building and Improvements	18,182
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	2,012
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	1,400
Building and Improvements	20,194
Total	21,594
Accumulated Depreciation and Amortization	8,757
Operating Properties | Emporia Partners
Real Estate Properties [Line Items]
Encumbrances	2,104
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	274
Building and Improvements	7,567
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	274
Building and Improvements	7,567
Total	7,841
Accumulated Depreciation and Amortization	3,025
Operating Properties | AT&T
Real Estate Properties [Line Items]
Encumbrances	24,683
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	6,770
Building and Improvements	32,420
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	718
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	6,770
Building and Improvements	33,138
Total	39,908
Accumulated Depreciation and Amortization	10,234
Operating Properties | Westinghouse
Real Estate Properties [Line Items]
Encumbrances	20,885
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	2,650
Building and Improvements	26,745
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	2,650
Building and Improvements	26,745
Total	29,395
Accumulated Depreciation and Amortization	8,430
Operating Properties | TransDigm
Real Estate Properties [Line Items]
Encumbrances	4,367
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	3,773
Building and Improvements	9,030
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	411
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	3,773
Building and Improvements	9,441
Total	13,214
Accumulated Depreciation and Amortization	2,839
Operating Properties | Atrium II
Real Estate Properties [Line Items]
Encumbrances	9,019
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	2,600
Building and Improvements	13,500
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	8,087
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	2,600
Building and Improvements	21,587
Total	24,187
Accumulated Depreciation and Amortization	6,393
Operating Properties | Zeller Plastik
Real Estate Properties [Line Items]
Encumbrances	8,543
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	2,674
Building and Improvements	13,229
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	651
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	2,674
Building and Improvements	13,880
Total	16,554
Accumulated Depreciation and Amortization	3,710
Operating Properties | Northrop Grumman
Real Estate Properties [Line Items]
Encumbrances	10,324
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	1,300
Building and Improvements	16,188
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	39
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	1,300
Building and Improvements	16,227
Total	17,527
Accumulated Depreciation and Amortization	6,542
Operating Properties | Health Net
Real Estate Properties [Line Items]
Encumbrances	12,815
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	4,182
Building and Improvements	18,072
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	324
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	4,182
Building and Improvements	18,396
Total	22,578
Accumulated Depreciation and Amortization	7,730
Operating Properties | Comcast
Real Estate Properties [Line Items]
Encumbrances	14,105
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	3,146
Building and Improvements	22,826
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	1,593
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	3,146
Building and Improvements	24,419
Total	27,565
Accumulated Depreciation and Amortization	9,578
Operating Properties | 500 Rivertech
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	3,000
Building and Improvements	9,000
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	6,982
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	3,000
Building and Improvements	15,982
Total	18,982
Accumulated Depreciation and Amortization	4,920
Operating Properties | Schlumberger
Real Estate Properties [Line Items]
Encumbrances	28,735
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	2,800
Building and Improvements	47,752
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	829
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	2,800
Building and Improvements	48,581
Total	51,381
Accumulated Depreciation and Amortization	11,624
Operating Properties | UTC
Real Estate Properties [Line Items]
Encumbrances	22,712
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	1,330
Building and Improvements	37,858
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	1,330
Building and Improvements	37,858
Total	39,188
Accumulated Depreciation and Amortization	9,973
Operating Properties | Avnet
Real Estate Properties [Line Items]
Encumbrances	18,984
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	1,860
Building and Improvements	31,481
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	47
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	1,860
Building and Improvements	31,528
Total	33,388
Accumulated Depreciation and Amortization	7,341
Operating Properties | Cigna
Real Estate Properties [Line Items]
Encumbrances	39,000
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	8,600
Building and Improvements	48,102
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	133
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	8,600
Building and Improvements	48,235
Total	56,835
Accumulated Depreciation and Amortization	12,717
Operating Properties | Nokia
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	7,697
Building and Improvements	21,843
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	7,697
Building and Improvements	21,843
Total	29,540
Accumulated Depreciation and Amortization	4,894
Operating Properties | Verizon
Real Estate Properties [Line Items]
Encumbrances	25,007
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	5,300
Building and Improvements	36,768
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	5,681
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	5,300
Building and Improvements	42,449
Total	47,749
Accumulated Depreciation and Amortization	16,429
Operating Properties | Fox Head
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	3,672
Building and Improvements	23,230
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	3,672
Building and Improvements	23,230
Total	26,902
Accumulated Depreciation and Amortization	5,090
Operating Properties | 2500 Windy Ridge
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	5,000
Building and Improvements	50,227
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	17,824
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	5,000
Building and Improvements	68,051
Total	73,051
Accumulated Depreciation and Amortization	14,882
Operating Properties | General Electric
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	5,050
Building and Improvements	51,396
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	148
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	5,050
Building and Improvements	51,544
Total	56,594
Accumulated Depreciation and Amortization	10,959
Operating Properties | Atlanta Wildwood
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	4,241
Building and Improvements	23,414
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	5,445
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	4,241
Building and Improvements	28,859
Total	33,100
Accumulated Depreciation and Amortization	9,008
Operating Properties | Community Insurance
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	1,177
Building and Improvements	22,323
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	1,177
Building and Improvements	22,323
Total	23,500
Accumulated Depreciation and Amortization	5,188
Operating Properties | Anthem
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	850
Building and Improvements	8,892
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	175
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	850
Building and Improvements	9,067
Total	9,917
Accumulated Depreciation and Amortization	2,808
Operating Properties | JPMorgan Chase
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	5,500
Building and Improvements	39,000
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	586
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	5,500
Building and Improvements	39,586
Total	45,086
Accumulated Depreciation and Amortization	9,696
Operating Properties | Sterling Commerce Center
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	4,750
Building and Improvements	32,769
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	4,307
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	4,750
Building and Improvements	37,076
Total	41,826
Accumulated Depreciation and Amortization	12,021
Operating Properties | Aetna.
Real Estate Properties [Line Items]
Encumbrances	36,199
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	3,000
Building and Improvements	12,330
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	624
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	3,000
Building and Improvements	12,954
Total	15,954
Accumulated Depreciation and Amortization	4,518
Operating Properties | CHRISTUS Health
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	1,950
Building and Improvements	46,922
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	357
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	1,950
Building and Improvements	47,279
Total	49,229
Accumulated Depreciation and Amortization	13,580
Operating Properties | Roush Industries
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	875
Building and Improvements	11,375
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	2,449
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	875
Building and Improvements	13,824
Total	14,699
Accumulated Depreciation and Amortization	3,593
Operating Properties | Parkland Center
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	3,100
Building and Improvements	26,348
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	10,825
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	3,100
Building and Improvements	37,173
Total	40,273
Accumulated Depreciation and Amortization	16,544
Operating Properties | 1200 Morris
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	2,925
Building and Improvements	18,935
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	2,278
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	2,925
Building and Improvements	21,213
Total	24,138
Accumulated Depreciation and Amortization	7,724
Operating Properties | United HealthCare
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	2,920
Building and Improvements	23,510
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	6,764
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	2,920
Building and Improvements	30,274
Total	33,194
Accumulated Depreciation and Amortization	7,431
Operating Properties | Intermec (Northpointe Corporate Center II)
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	1,109
Building and Improvements	6,066
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	4,576
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	1,109
Building and Improvements	10,642
Total	11,751
Accumulated Depreciation and Amortization	3,221
Operating Properties | Comcast (Northpointe Corporate Center I)
Real Estate Properties [Line Items]
Encumbrances	39,650
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	2,292
Building and Improvements	16,930
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	2,324
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	2,292
Building and Improvements	19,254
Total	21,546
Accumulated Depreciation and Amortization	4,829
Operating Properties | Farmers
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	2,750
Building and Improvements	17,106
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	816
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	2,750
Building and Improvements	17,922
Total	20,672
Accumulated Depreciation and Amortization	5,366
Operating Properties | 2200 Channahon Road
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	6,000
Building and Improvements	46,511
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	(15,695)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	3,537
Building and Improvements	33,279
Total	36,816
Accumulated Depreciation and Amortization	14,276
Operating Properties | Digital Globe
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	8,600
Building and Improvements	83,400
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	8,600
Building and Improvements	83,400
Total	92,000
Accumulated Depreciation and Amortization	19,091
Operating Properties | Waste Management
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	0
Building and Improvements	16,515
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	82
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	0
Building and Improvements	16,597
Total	16,597
Accumulated Depreciation and Amortization	4,607
Operating Properties | Wyndham Worldwide
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	6,200
Building and Improvements	91,153
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	1,171
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	6,200
Building and Improvements	92,324
Total	98,524
Accumulated Depreciation and Amortization	16,350
Operating Properties | ACE Hardware Corporation HQ
Real Estate Properties [Line Items]
Encumbrances	22,750
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	6,900
Building and Improvements	33,945
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	6,900
Building and Improvements	33,945
Total	40,845
Accumulated Depreciation and Amortization	7,392
Operating Properties | Equifax
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	1,850
Building and Improvements	12,709
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	194
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	1,850
Building and Improvements	12,903
Total	14,753
Accumulated Depreciation and Amortization	3,913
Operating Properties | American Express
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	15,000
Building and Improvements	45,893
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	375
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	15,000
Building and Improvements	46,268
Total	61,268
Accumulated Depreciation and Amortization	18,300
Operating Properties | SoftBank
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	22,789
Building and Improvements	68,950
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	4,231
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	22,789
Building and Improvements	73,181
Total	95,970
Accumulated Depreciation and Amortization	22,758
Operating Properties | Vanguard
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	2,230
Building and Improvements	31,062
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	2,230
Building and Improvements	31,062
Total	33,292
Accumulated Depreciation and Amortization	7,152
Operating Properties | Parallon
Real Estate Properties [Line Items]
Encumbrances	7,120
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	1,000
Building and Improvements	16,772
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	1,000
Building and Improvements	16,772
Total	17,772
Accumulated Depreciation and Amortization	3,828
Operating Properties | TW Telecom
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	10,554
Building and Improvements	35,817
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	1,474
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	10,554
Building and Improvements	37,291
Total	47,845
Accumulated Depreciation and Amortization	9,166
Operating Properties | Equifax II
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	2,200
Building and Improvements	12,755
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	70
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	2,200
Building and Improvements	12,825
Total	15,025
Accumulated Depreciation and Amortization	3,288
Operating Properties | Mason I
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	4,777
Building and Improvements	18,489
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	4,777
Building and Improvements	18,489
Total	23,266
Accumulated Depreciation and Amortization	2,380
Operating Properties | Wells Fargo.
Real Estate Properties [Line Items]
Encumbrances	26,975
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	2,150
Building and Improvements	40,806
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	46
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	2,150
Building and Improvements	40,852
Total	43,002
Accumulated Depreciation and Amortization	8,128
Operating Properties | GE Aviation
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	4,400
Building and Improvements	61,681
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	4,400
Building and Improvements	61,681
Total	66,081
Accumulated Depreciation and Amortization	14,077
Operating Properties | Westgate III
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	3,209
Building and Improvements	75,937
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	3,209
Building and Improvements	75,937
Total	79,146
Accumulated Depreciation and Amortization	13,333
Operating Properties | 2275 Cabot Drive
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	2,788
Building and Improvements	16,200
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	53
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	2,788
Building and Improvements	16,253
Total	19,041
Accumulated Depreciation and Amortization	6,276
Operating Properties | Franklin Center
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	6,989
Building and Improvements	46,875
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	1,386
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	6,989
Building and Improvements	48,261
Total	55,250
Accumulated Depreciation and Amortization	8,403
Operating Properties | 4650 Lakehurst Court
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	2,943
Building and Improvements	22,651
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	808
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	2,943
Building and Improvements	23,459
Total	26,402
Accumulated Depreciation and Amortization	6,781
Operating Properties | Miramar
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	4,488
Building and Improvements	19,979
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	2,221
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	4,488
Building and Improvements	22,200
Total	26,688
Accumulated Depreciation and Amortization	4,268
Operating Properties | Royal Ridge V
Real Estate Properties [Line Items]
Encumbrances	21,385
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	1,842
Building and Improvements	22,052
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	3,622
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	1,842
Building and Improvements	25,674
Total	27,516
Accumulated Depreciation and Amortization	4,373
Operating Properties | Duke Bridges
Real Estate Properties [Line Items]
Encumbrances	27,475
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	8,239
Building and Improvements	51,395
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	7,458
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	8,239
Building and Improvements	58,853
Total	67,092
Accumulated Depreciation and Amortization	9,221
Operating Properties | Houston Westway II
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	3,961
Building and Improvements	78,668
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	507
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	3,961
Building and Improvements	79,175
Total	83,136
Accumulated Depreciation and Amortization	17,452
Operating Properties | Houston Westway I
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	6,540
Building and Improvements	30,703
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	(15,039)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	3,382
Building and Improvements	18,822
Total	22,204
Accumulated Depreciation and Amortization	6,104
Operating Properties | Atlanta Perimeter
Real Estate Properties [Line Items]
Encumbrances	69,461
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	8,382
Building and Improvements	96,718
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	679
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	8,382
Building and Improvements	97,397
Total	105,779
Accumulated Depreciation and Amortization	25,393
Operating Properties | South Lake at Dulles
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	9,666
Building and Improvements	74,098
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	2,814
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	9,666
Building and Improvements	76,912
Total	86,578
Accumulated Depreciation and Amortization	15,410
Operating Properties | Four Parkway
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	4,339
Building and Improvements	37,298
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	2,692
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	4,339
Building and Improvements	39,990
Total	44,329
Accumulated Depreciation and Amortization	10,514
Operating Properties | Highway 94
Real Estate Properties [Line Items]
Encumbrances	15,610
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	5,637
Building and Improvements	25,280
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	5,637
Building and Improvements	25,280
Total	30,917
Accumulated Depreciation and Amortization	5,080
Operating Properties | Heritage IV
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	2,330
Building and Improvements	26,376
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	2,330
Building and Improvements	26,376
Total	28,706
Accumulated Depreciation and Amortization	5,328
Operating Properties | Samsonite
Real Estate Properties [Line Items]
Encumbrances	21,154
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	5,040
Building and Improvements	42,490
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	5,040
Building and Improvements	42,490
Total	47,530
Accumulated Depreciation and Amortization	6,183
Operating Properties | Restoration Hardware
Real Estate Properties [Line Items]
Encumbrances	78,000
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	15,463
Building and Improvements	36,613
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	37,693
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	15,463
Building and Improvements	74,306
Total	89,769
Accumulated Depreciation and Amortization	14,996
Operating Properties | HealthSpring
Real Estate Properties [Line Items]
Encumbrances	20,723
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	8,126
Building and Improvements	31,447
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	8,126
Building and Improvements	31,447
Total	39,573
Accumulated Depreciation and Amortization	5,478
Operating Properties | LPL
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	4,612
Building and Improvements	86,352
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	4,612
Building and Improvements	86,352
Total	90,964
Accumulated Depreciation and Amortization	5,283
Operating Properties | LPL
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	1,274
Building and Improvements	41,509
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	1,274
Building and Improvements	41,509
Total	42,783
Accumulated Depreciation and Amortization	2,541
Operating Properties | Quaker
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	5,433
Building and Improvements	55,341
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	5,433
Building and Improvements	55,341
Total	60,774
Accumulated Depreciation and Amortization	3,060
Operating Properties | McKesson
Real Estate Properties [Line Items]
Encumbrances	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	312
Building and Improvements	69,760
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	312
Building and Improvements	69,760
Total	70,072
Accumulated Depreciation and Amortization	$ 6,252
Operating Properties | McKesson | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Operating Properties | McKesson | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Operating Properties | Shaw Industries
Real Estate Properties [Line Items]
Encumbrances	$ 0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	5,465
Building and Improvements	57,116
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	5,465
Building and Improvements	57,116
Total	62,581
Accumulated Depreciation and Amortization	$ 2,957
Operating Properties | Shaw Industries | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Operating Properties | Shaw Industries | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Operating Properties | GEAR Entities
Real Estate Properties [Line Items]
Encumbrances	$ 0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	1,584
Building and Improvements	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	1,584
Building and Improvements	0
Total	1,584
Accumulated Depreciation and Amortization	$ 0
Operating Properties | GEAR Entities | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Operating Properties | GEAR Entities | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Operating Properties | Owens Corning
Real Estate Properties [Line Items]
Encumbrances	$ 3,300
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	867
Building and Improvements	4,418
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	555
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	867
Building and Improvements	4,973
Total	5,840
Accumulated Depreciation and Amortization	$ 200
Operating Properties | Owens Corning | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Operating Properties | Owens Corning | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Operating Properties | Westgate II
Real Estate Properties [Line Items]
Encumbrances	$ 34,200
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	7,716
Building and Improvements	48,422
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	870
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	7,716
Building and Improvements	49,292
Total	57,008
Accumulated Depreciation and Amortization	$ 2,023
Operating Properties | Westgate II | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Operating Properties | Westgate II | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Operating Properties | Administrative Office of Pennsylvania Courts
Real Estate Properties [Line Items]
Encumbrances	$ 6,070
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	1,246
Building and Improvements	9,626
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	498
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	1,246
Building and Improvements	10,124
Total	11,370
Accumulated Depreciation and Amortization	$ 390
Operating Properties | Administrative Office of Pennsylvania Courts | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Operating Properties | Administrative Office of Pennsylvania Courts | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Operating Properties | American Express Center
Real Estate Properties [Line Items]
Encumbrances	$ 54,900
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	10,595
Building and Improvements	82,098
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	3,109
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	10,595
Building and Improvements	85,207
Total	95,802
Accumulated Depreciation and Amortization	$ 3,962
Operating Properties | American Express Center | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Operating Properties | American Express Center | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Operating Properties | MGM Corporate Center
Real Estate Properties [Line Items]
Encumbrances	$ 18,180
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	4,546
Building and Improvements	25,825
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	1,076
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	4,546
Building and Improvements	26,901
Total	31,447
Accumulated Depreciation and Amortization	$ 1,123
Operating Properties | MGM Corporate Center | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Operating Properties | MGM Corporate Center | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Operating Properties | American Showa
Real Estate Properties [Line Items]
Encumbrances	$ 10,320
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	1,214
Building and Improvements	16,538
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	2,427
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	1,214
Building and Improvements	18,965
Total	20,179
Accumulated Depreciation and Amortization	$ 637
Operating Properties | American Showa | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Operating Properties | American Showa | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Operating Properties | Huntington Ingalls
Real Estate Properties [Line Items]
Encumbrances	$ 0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	6,213
Building and Improvements	29,219
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	2,651
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	6,213
Building and Improvements	31,870
Total	38,083
Accumulated Depreciation and Amortization	$ 1,087
Operating Properties | Huntington Ingalls | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Operating Properties | Huntington Ingalls | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Operating Properties | Wyndham
Real Estate Properties [Line Items]
Encumbrances	$ 0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	9,677
Building and Improvements	71,316
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	1,742
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	9,677
Building and Improvements	73,058
Total	82,735
Accumulated Depreciation and Amortization	$ 2,276
Operating Properties | Wyndham | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Operating Properties | Wyndham | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Operating Properties | Exel
Real Estate Properties [Line Items]
Encumbrances	$ 0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	978
Building and Improvements	14,137
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	2,568
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	978
Building and Improvements	16,705
Total	17,683
Accumulated Depreciation and Amortization	$ 778
Operating Properties | Exel | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Operating Properties | Exel | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Operating Properties | Morpho Detection
Real Estate Properties [Line Items]
Encumbrances	$ 0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	2,006
Building and Improvements	10,270
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	484
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	2,006
Building and Improvements	10,754
Total	12,760
Accumulated Depreciation and Amortization	$ 406
Operating Properties | Morpho Detection | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Operating Properties | Morpho Detection | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Operating Properties | Aetna
Real Estate Properties [Line Items]
Encumbrances	$ 0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	2,332
Building and Improvements	18,486
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	1,598
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	2,332
Building and Improvements	20,084
Total	22,416
Accumulated Depreciation and Amortization	$ 803
Operating Properties | Aetna | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Operating Properties | Aetna | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Operating Properties | Bank of America I
Real Estate Properties [Line Items]
Encumbrances	$ 0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	5,737
Building and Improvements	22,479
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	1,318
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	5,737
Building and Improvements	23,797
Total	29,534
Accumulated Depreciation and Amortization	$ 1,332
Operating Properties | Bank of America I | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Operating Properties | Bank of America I | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Operating Properties | Bank of America II
Real Estate Properties [Line Items]
Encumbrances	$ 0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	5,735
Building and Improvements	15,461
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	2,217
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	5,735
Building and Improvements	17,678
Total	23,413
Accumulated Depreciation and Amortization	$ 2,498
Operating Properties | Bank of America II | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Operating Properties | Bank of America II | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Operating Properties | Atlas Copco
Real Estate Properties [Line Items]
Encumbrances	$ 0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	1,156
Building and Improvements	18,297
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	1,505
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	1,156
Building and Improvements	19,802
Total	20,958
Accumulated Depreciation and Amortization	$ 693
Operating Properties | Atlas Copco | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Operating Properties | Atlas Copco | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Operating Properties | Toshiba TEC
Real Estate Properties [Line Items]
Encumbrances	$ 0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	1,916
Building and Improvements	36,374
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	2,423
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	1,916
Building and Improvements	38,797
Total	40,713
Accumulated Depreciation and Amortization	$ 1,301
Operating Properties | Toshiba TEC | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Operating Properties | Toshiba TEC | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Operating Properties | NETGEAR
Real Estate Properties [Line Items]
Encumbrances	$ 0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	22,600
Building and Improvements	28,859
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	1,700
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	22,600
Building and Improvements	30,559
Total	53,159
Accumulated Depreciation and Amortization	$ 1,521
Operating Properties | NETGEAR | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Operating Properties | NETGEAR | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Operating Properties | Nike
Real Estate Properties [Line Items]
Encumbrances	$ 0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	8,186
Building and Improvements	41,184
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	2,164
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	8,186
Building and Improvements	43,348
Total	51,534
Accumulated Depreciation and Amortization	$ 3,132
Operating Properties | Nike | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Operating Properties | Nike | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Operating Properties | Zebra Technologies
Real Estate Properties [Line Items]
Encumbrances	$ 0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	5,927
Building and Improvements	58,688
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	1,234
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	5,927
Building and Improvements	59,922
Total	65,849
Accumulated Depreciation and Amortization	$ 2,472
Operating Properties | Zebra Technologies | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Operating Properties | Zebra Technologies | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Operating Properties | WABCO
Real Estate Properties [Line Items]
Encumbrances	$ 0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	1,226
Building and Improvements	13,902
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	779
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	1,226
Building and Improvements	14,681
Total	15,907
Accumulated Depreciation and Amortization	$ 345
Operating Properties | WABCO | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Operating Properties | WABCO | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Operating Properties | IGT
Real Estate Properties [Line Items]
Encumbrances	$ 45,300
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	5,673
Building and Improvements	67,610
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	2,021
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	5,673
Building and Improvements	69,631
Total	75,304
Accumulated Depreciation and Amortization	$ 1,804
Operating Properties | IGT | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Operating Properties | IGT | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Operating Properties | 3M
Real Estate Properties [Line Items]
Encumbrances	$ 43,600
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	5,802
Building and Improvements	75,758
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	6,391
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	5,802
Building and Improvements	82,149
Total	87,951
Accumulated Depreciation and Amortization	$ 1,759
Operating Properties | 3M | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Operating Properties | 3M | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Operating Properties | Amazon
Real Estate Properties [Line Items]
Encumbrances	$ 61,500
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	4,773
Building and Improvements	95,475
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	11,546
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	4,773
Building and Improvements	107,021
Total	111,794
Accumulated Depreciation and Amortization	$ 2,725
Operating Properties | Amazon | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Operating Properties | Amazon | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Operating Properties | Zoetis
Real Estate Properties [Line Items]
Encumbrances	$ 0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	3,718
Building and Improvements	44,082
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	735
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	3,718
Building and Improvements	44,817
Total	48,535
Accumulated Depreciation and Amortization	$ 1,310
Operating Properties | Zoetis | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Operating Properties | Zoetis | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Operating Properties | Southern Company
Real Estate Properties [Line Items]
Encumbrances	$ 99,600
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	7,794
Building and Improvements	157,724
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	1,457
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	7,794
Building and Improvements	159,181
Total	166,975
Accumulated Depreciation and Amortization	$ 3,051
Life on which depreciation in latest income statement is computed	38 years
Operating Properties | Allstate
Real Estate Properties [Line Items]
Encumbrances	$ 0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	3,109
Building and Improvements	13,096
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	553
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	3,109
Building and Improvements	13,649
Total	16,758
Accumulated Depreciation and Amortization	$ 487
Operating Properties | Allstate | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Operating Properties | Allstate | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Operating Properties | MISO
Real Estate Properties [Line Items]
Encumbrances	$ 0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	3,725
Building and Improvements	25,848
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	971
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	3,725
Building and Improvements	26,819
Total	30,544
Accumulated Depreciation and Amortization	$ 831
Operating Properties | MISO | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Operating Properties | MISO | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Operating Properties | McKesson II
Real Estate Properties [Line Items]
Encumbrances	$ 0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	0
Building and Improvements	36,959
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	4,681
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	0
Building and Improvements	41,640
Total	41,640
Accumulated Depreciation and Amortization	$ 561
Operating Properties | McKesson II | Minimum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	5 years
Operating Properties | McKesson II | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Life on which depreciation in latest income statement is computed	40 years
Operating Properties | Others
Real Estate Properties [Line Items]
Encumbrances	$ 0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Land	0
Building and Improvements	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition [Abstract]
Building and Improvements	95
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net [Abstract]
Land	0
Building and Improvements	95
Total	95
Accumulated Depreciation and Amortization	$ 10

- Rollforward (Details)

- Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Sep. 30, 2020
Real estate facilities
Balance at beginning of year	$ 3,073,364	$ 2,869,328	$ 3,024,389
Acquisitions	1,305,998	193,430	133,747
Improvements	47,566	6,264	12,479
Construction-in-progress	3,874	20,619	1,752
Other adjustments	0	0	(2,785)
Impairment Write Down	(30,734)	0	(2,352)
Sale of real estate assets	(121,635)	(16,277)	(297,902)
Balance at end of year	4,278,433	3,073,364	2,869,328
Accumulated depreciation
Balance at beginning of year	538,412	426,752	338,552
Depreciation and amortization expense	153,425	119,168	116,583
Less: Non-real estate assets depreciation expense	(7,769)	(3,584)	(1,554)
Less: Sale of real estate assets depreciation expense	(15,964)	(3,924)	(26,829)
Balance at end of year	668,104	538,412	426,752
Total real estate, net	$ 3,610,329	$ 2,534,952	$ 2,442,576	$ 3,545,939