SCHEDULE III REAL ESTATE AND ACCUMULATED DEPRECIATION

12 Months Ended

Dec. 31, 2022

SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation Disclosure [Abstract]

SCHEDULE III REAL ESTATE AND ACCUMULATED DEPRECIATION

					Initial Cost to Company				Costs Capitalized Subsequent to Acquisition				Cost amount carried at Close of Period
Property	Location	Number of Properties	Encumbrances (1)		Land		Buildings and Equipment				Impairments/ Writedowns		Land		Buildings and Equipment		Total (2)		Accumulated Depreciation (3)		Date(s) Acquired	Original Construction Date(s)
445 Jan Davis Drive	Huntsville, AL	1	$	—	$	1,501	$	1,492	$	—	$	—	$	1,501	$	1,492	$	2,993	$	(160)	12/31/2018	2007
131 Clayton Street	Montgomery, AL	1	—		920		9,084		417		—		920		9,501		10,421		(2,690)		6/22/2011	2007
4344 Carmichael Road	Montgomery, AL	1	—		1,374		11,658		562		—		1,374		12,220		13,594		(2,766)		12/17/2013	2009
15451 North 28th Avenue	Phoenix, AZ	1	—		1,917		7,416		765		—		1,917		8,181		10,098		(1,756)		9/10/2014	1996
16001 North 28th Avenue	Phoenix, AZ	1	—		3,355		412		1,146		—		3,355		1,558		4,913		(273)		12/31/2018	1998
711 S 14th Avenue	Safford, AZ	1	—		460		11,708		884		(4,440)		364		8,248		8,612		(1,381)		6/16/2010	1992
Regents Center	Tempe, AZ	2	—		4,121		3,042		293		—		4,121		3,335		7,456		(660)		12/31/2018	1988
Campbell Place	Carlsbad, CA	2	—		5,769		3,871		7,517		—		5,769		11,388		17,157		(2,438)		12/31/2018	2007
Folsom Corporate Center	Folsom, CA	1	—		2,904		5,583		1,567		—		2,904		7,150		10,054		(816)		12/31/2018	2008
Bayside Technology Park	Fremont, CA	1	—		10,784		648		198		—		10,784		846		11,630		(110)		12/31/2018	1990
10949 N. Mather Boulevard	Rancho Cordova, CA	1	—		562		16,923		1,012		—		562		17,935		18,497		(4,165)		10/30/2013	2012
11020 Sun Center Drive	Rancho Cordova, CA	1	—		1,466		8,797		1,409		—		1,466		10,206		11,672		(1,827)		12/20/2016	1983
100 Redwood Shores Parkway	Redwood City, CA	1	—		14,454		7,721		—		—		14,454		7,721		22,175		(857)		12/31/2018	1993
3875 Atherton Road	Rocklin, CA	1	—		177		853		23		—		177		876		1,053		(95)		12/31/2018	1991
801 K Street	Sacramento, CA	1	—		4,688		61,994		9,465		—		4,688		71,459		76,147		(12,968)		1/29/2016	1989
9815 Goethe Road	Sacramento, CA	1	—		1,450		9,465		1,603		—		1,450		11,068		12,518		(3,109)		9/14/2011	1992
Capitol Place	Sacramento, CA	1	—		2,290		35,891		8,767		—		2,290		44,658		46,948		(14,418)		12/17/2009	1988
4560 Viewridge Road	San Diego, CA	1	—		4,269		18,316		5,146		—		4,347		23,384		27,731		(13,942)		3/31/1997	1996
2115 O’Nel Drive	San Jose, CA	1	—		12,305		5,062		350		—		12,305		5,412		17,717		(587)		12/31/2018	1984
North First Street	San Jose, CA	1	—		8,311		4,003		411		—		8,311		4,414		12,725		(572)		12/31/2018	1984
Rio Robles Drive	San Jose, CA	3	—		23,687		13,698		12,637		—		23,687		26,335		50,022		(2,332)		12/31/2018	1984
2450 and 2500 Walsh Avenue	Santa Clara, CA	2	—		13,374		16,651		194		—		13,374		16,845		30,219		(1,878)		12/31/2018	1982
3250 and 3260 Jay Street	Santa Clara, CA	2	—		19,899		14,051		20		—		19,899		14,071		33,970		(1,558)		12/31/2018	1982
603 San Juan Avenue	Stockton, CA	1	—		563		5,470		93		—		563		5,563		6,126		(1,436)		7/20/2012	2012
350 West Java Drive	Sunnyvale, CA	1	—		24,609		462		408		—		24,609		870		25,479		(93)		12/31/2018	1984
7958 South Chester Street	Centennial, CO	1	—		6,682		7,153		1,410		—		6,682		8,563		15,245		(924)		12/31/2018	2000
350 Spectrum Loop	Colorado Springs, CO	1	—		3,650		7,732		573		—		3,650		8,305		11,955		(933)		12/31/2018	2000
12795 West Alameda Parkway	Lakewood, CO	1	—		2,640		23,777		1,535		—		2,640		25,312		27,952		(8,177)		1/15/2010	1988
Corporate Center	Lakewood, CO	3	—		2,887		27,537		2,689		—		2,887		30,226		33,113		(14,630)		10/11/2002	1980

				Initial Cost to Company		Costs Capitalized Subsequent to Acquisition		Cost amount carried at Close of Period
Property	Location	Number of Properties	Encumbrances (1)	Land	Buildings and Equipment		Impairments/ Writedowns	Land	Buildings and Equipment	Total (2)	Accumulated Depreciation (3)	Date(s) Acquired	Original Construction Date(s)
11 Dupont Circle, NW	Washington, DC	1	—	28,255	44,743	18,712	—	28,255	63,455	91,710	(10,002)	10/2/2017	1974
1211 Connecticut Avenue, NW	Washington, DC	1	—	30,388	24,667	3,871	—	30,388	28,538	58,926	(4,681)	10/2/2017	1967
1401 K Street, NW	Washington, DC	1	—	29,215	34,656	7,146	—	29,215	41,802	71,017	(7,675)	10/2/2017	1929
20 Massachusetts Avenue	Washington, DC	1	—	12,009	51,527	178,984	—	12,231	230,289	242,520	(42,535)	3/31/1997	1996
440 First Street, NW	Washington, DC	1	—	27,903	38,624	2,315	—	27,903	40,939	68,842	(5,678)	10/2/2017	1982
625 Indiana Avenue	Washington, DC	1	—	26,000	25,955	10,652	—	26,000	36,607	62,607	(10,956)	8/17/2010	1989
840 First Street, NE	Washington, DC	1	—	42,727	73,278	3,949	—	42,727	77,227	119,954	(11,073)	10/2/2017	2003
10350 NW 112th Avenue	Miami, FL	1	—	4,798	2,757	1,903	—	4,798	4,660	9,458	(441)	12/31/2018	2002
7850 Southwest 6th Court	Plantation, FL	1	—	4,800	30,592	1,167	—	4,800	31,759	36,559	(9,022)	5/12/2011	1999
8900 Grand Oak Circle	Tampa, FL	1	—	1,100	11,773	1,142	—	1,100	12,915	14,015	(3,830)	10/15/2010	1994
180 Ted Turner Drive SW	Atlanta, GA	1	—	5,717	20,017	726	—	5,717	20,743	26,460	(5,401)	7/25/2012	2007
1224 Hammond Drive	Atlanta, GA	1	—	13,040	135,459	11,627	—	13,040	147,086	160,126	(6,189)	6/25/2021	2020
Corporate Square	Atlanta, GA	5	—	3,996	29,762	28,076	—	3,996	57,838	61,834	(20,701)	7/16/2004	1967
Executive Park	Atlanta, GA	1	—	1,521	11,826	4,123	—	1,521	15,949	17,470	(8,424)	7/16/2004	1972
One Georgia Center	Atlanta, GA	1	—	10,250	27,933	18,781	—	10,250	46,714	56,964	(11,782)	9/30/2011	1968
One Primerica Parkway	Duluth, GA	1	—	6,927	22,951	—	—	6,927	22,951	29,878	(2,545)	12/31/2018	2013
4712 Southpark Boulevard	Ellenwood, GA	1	—	1,390	19,635	248	—	1,390	19,883	21,273	(5,152)	7/25/2012	2005
8305 NW 62nd Avenue	Johnston, IA	1	—	2,649	7,997	—	—	2,649	7,997	10,646	(887)	12/31/2018	2011
1185, 1249 & 1387 S. Vinnell Way	Boise, ID	3	—	3,390	29,026	1,101	—	3,390	30,127	33,517	(7,835)	9/11/2012	1996; 1997; 2002
2020 S. Arlington Heights	Arlington Heights, IL	1	—	1,450	13,588	2,139	—	1,450	15,727	17,177	(4,654)	12/29/2009	1988
400 South Jefferson Street	Chicago, IL	1	49,917	19,379	20,115	783	—	19,379	20,898	40,277	(2,381)	12/31/2018	1947
1000 W. Fulton	Chicago, IL	1	—	42,935	252,914	94	—	42,935	253,008	295,943	(12,816)	6/24/2021	2015
HUB 1415	Naperville, IL	1	—	12,333	20,586	16,211	—	12,333	36,797	49,130	(4,616)	12/31/2018	2001
440 North Fairway Drive	Vernon Hills, IL	1	—	4,465	441	10	—	4,465	451	4,916	(51)	12/31/2018	1992
7601 and 7635 Interactive Way	Indianapolis, IN	2	—	3,337	14,522	34	—	3,337	14,556	17,893	(1,517)	12/31/2018	2003
Intech Park	Indianapolis, IN	3	—	4,170	69,759	10,389	—	4,170	80,148	84,318	(23,417)	10/14/2011	2000; 2001; 2008
7125 Industrial Road	Florence, KY	1	—	1,698	11,722	293	—	1,698	12,015	13,713	(3,030)	12/31/2012	1980
251 Causeway Street	Boston, MA	3	—	26,851	36,756	4,662	—	26,851	41,418	68,269	(7,688)	8/17/2010	1987

				Initial Cost to Company		Costs Capitalized Subsequent to Acquisition		Cost amount carried at Close of Period
Property	Location	Number of Properties	Encumbrances (1)	Land	Buildings and Equipment		Impairments/ Writedowns	Land	Buildings and Equipment	Total (2)	Accumulated Depreciation (3)	Date(s) Acquired	Original Construction Date(s)
300 Billerica Road	Chelmsford, MA	1	—	2,223	—	45	—	2,223	45	2,268	(13)	12/31/2018	1984
330 Billerica Road	Chelmsford, MA	1	—	2,477	—	10,103	—	2,477	10,103	12,580	(1,113)	12/31/2018	1984
75 Pleasant Street	Malden, MA	1	—	1,050	31,086	856	—	1,050	31,942	32,992	(10,300)	5/24/2010	2008
25 Newport Avenue	Quincy, MA	1	—	2,700	9,199	2,143	—	2,700	11,342	14,042	(3,154)	2/16/2011	1985
314 Littleton Road	Westford, MA	1	—	5,691	8,487	100	—	5,691	8,587	14,278	(956)	12/31/2018	2007
Annapolis Commerce Center	Annapolis, MD	2	—	4,057	7,665	4,628	—	4,057	12,293	16,350	(1,679)	10/2/2017	1989
4201 Patterson Avenue	Baltimore, MD	1	—	901	8,097	4,134	(85)	893	12,154	13,047	(6,744)	10/15/1998	1989
7001 Columbia Gateway Drive	Columbia, MD	1	—	5,642	10,352	569	—	5,642	10,921	16,563	(1,271)	12/31/2018	2008
Hillside Center	Columbia, MD	2	—	3,437	4,228	971	—	3,437	5,199	8,636	(859)	10/2/2017	2001
TenThreeTwenty	Columbia, MD	1	—	3,126	16,361	3,681	—	3,126	20,042	23,168	(2,782)	10/2/2017	1982
3300 75th Avenue	Landover, MD	1	—	4,110	36,371	3,302	—	4,110	39,673	43,783	(12,615)	2/26/2010	1985
Redland 520/530	Rockville, MD	3	—	12,714	61,377	6,951	—	12,714	68,328	81,042	(8,937)	10/2/2017	2008
Redland 540	Rockville, MD	1	—	10,740	17,714	6,231	—	10,740	23,945	34,685	(5,635)	10/2/2017	2003
Rutherford Business Park	Windsor Mill, MD	1	—	1,598	10,219	545	—	1,598	10,764	12,362	(2,741)	11/16/2012	1972
3550 Green Court	Ann Arbor, MI	1	—	3,630	4,857	—	—	3,630	4,857	8,487	(571)	12/31/2018	1998
11411 E. Jefferson Avenue	Detroit, MI	1	—	630	18,002	567	—	630	18,569	19,199	(5,839)	4/23/2010	2009
Rosedale Corporate Plaza	Roseville, MN	1	—	672	6,045	1,547	—	672	7,592	8,264	(4,636)	12/1/1999	1987
1300 Summit Street	Kansas City, MO	1	—	2,776	12,070	900	—	2,776	12,970	15,746	(3,334)	9/27/2012	1998
2555 Grand Boulevard	Kansas City, MO	1	—	4,209	51,522	4,778	—	4,209	56,300	60,509	(6,356)	12/31/2018	2003
4241 NE 34th Street	Kansas City, MO	1	—	1,133	5,649	4,908	—	1,470	10,220	11,690	(5,127)	3/31/1997	1995
1220 Echelon Parkway	Jackson, MS	1	—	440	25,458	561	—	440	26,019	26,459	(6,800)	7/25/2012	2009
2300 and 2400 Yorkmont Road	Charlotte, NC	2	—	1,334	19,075	3,200	—	1,334	22,275	23,609	(2,725)	12/31/2018	1995
18010 and 18020 Burt Street	Omaha, NE	2	—	6,977	12,500	—	—	6,977	12,500	19,477	(1,386)	12/31/2018	2012
500 Charles Ewing Boulevard	Ewing, NJ	1	—	4,808	26,002	281	—	4,808	26,283	31,091	(2,883)	12/31/2018	2012
299 Jefferson Road	Parsippany, NJ	1	—	4,543	2,914	935	—	4,543	3,849	8,392	(554)	12/31/2018	2011
One Jefferson Road	Parsippany, NJ	1	—	4,415	5,249	63	—	4,415	5,312	9,727	(588)	12/31/2018	2009
Airline Corporate Center	Colonie, NY	1	—	790	6,400	1,827	—	790	8,227	9,017	(1,876)	6/22/2012	2004
1212 Pittsford - Victor Road	Pittsford, NY	1	—	608	78	847	—	608	925	1,533	(106)	12/31/2018	1965

				Initial Cost to Company		Costs Capitalized Subsequent to Acquisition		Cost amount carried at Close of Period
Property	Location	Number of Properties	Encumbrances (1)	Land	Buildings and Equipment		Impairments/ Writedowns	Land	Buildings and Equipment	Total (2)	Accumulated Depreciation (3)	Date(s) Acquired	Original Construction Date(s)
2231 Schrock Road	Columbus, OH	1	—	716	217	578	—	716	795	1,511	(98)	12/31/2018	1999
8800 Tinicum Boulevard	Philadelphia, PA	1	—	5,573	22,686	5,934	—	5,573	28,620	34,193	(2,738)	12/31/2018	2000
446 Wrenplace Road	Fort Mill, SC	1	—	5,031	22,524	—	—	5,031	22,524	27,555	(1,140)	12/22/2020	2019
9680 Old Bailes Road	Fort Mill, SC	1	—	834	2,944	53	—	834	2,997	3,831	(333)	12/31/2018	2007
16001 North Dallas Parkway	Addison, TX	2	—	10,282	63,071	1,911	—	10,282	64,982	75,264	(7,529)	12/31/2018	1987
Research Park	Austin, TX	2	—	4,258	13,747	199	—	4,258	13,946	18,204	(2,787)	12/31/2018	1999
10451 Clay Road	Houston, TX	1	—	5,495	10,253	2,432	—	5,495	12,685	18,180	(1,139)	12/31/2018	2013
202 North Castlegory Road	Houston, TX	1	—	863	5,024	8	—	863	5,032	5,895	(524)	12/31/2018	2016
4221 W. John Carpenter Freeway	Irving, TX	1	—	1,413	2,365	1,843	—	1,413	4,208	5,621	(1,091)	12/31/2018	1995
8675, 8701-8711 Freeport Pkwy and 8901 Esters Boulevard	Irving, TX	3	—	10,185	31,566	68	—	10,185	31,634	41,819	(3,500)	12/31/2018	1990
1511 East Common Street	New Braunfels, TX	1	—	4,965	1,266	251	—	4,965	1,517	6,482	(223)	12/31/2018	2005
2900 West Plano Parkway	Plano, TX	1	—	6,819	8,831	—	—	6,819	8,831	15,650	(979)	12/31/2018	1998
3400 West Plano Parkway	Plano, TX	1	—	4,543	15,964	321	—	4,543	16,285	20,828	(1,828)	12/31/2018	1994
3600 Wiseman Boulevard	San Antonio, TX	1	—	3,493	6,662	3,309	—	3,493	9,971	13,464	(1,714)	12/31/2018	2004
701 Clay Road	Waco, TX	1	—	2,030	8,708	14,479	—	2,060	23,157	25,217	(8,473)	12/23/1997	1997
1800 Novell Place	Provo, UT	1	—	7,487	43,487	11,404	—	7,487	54,891	62,378	(5,233)	12/31/2018	2000
4885-4931 North 300 West	Provo, UT	2	—	3,915	9,429	21	—	3,915	9,450	13,365	(1,113)	12/31/2018	2009
14660, 14672 & 14668 Lee Road	Chantilly, VA	3	—	6,966	74,214	7,567	—	6,966	81,781	88,747	(12,503)	12/22/2016	1998; 2002; 2006
Enterchange at Meadowville	Chester, VA	1	—	1,478	9,594	1,369	—	1,478	10,963	12,441	(2,367)	8/28/2013	1999
7987 Ashton Avenue	Manassas, VA	1	—	1,562	8,253	1,069	—	1,562	9,322	10,884	(1,628)	1/3/2017	1989
Two Commercial Place	Norfolk, VA	1	—	4,494	21,508	780	—	4,494	22,288	26,782	(2,350)	12/31/2018	1974
1759 Business Center Drive	Reston, VA	1	—	4,033	28,517	1,562	—	4,033	30,079	34,112	(6,349)	5/28/2014	1987
1760 Business Center Drive	Reston, VA	1	—	5,033	50,141	6,251	—	5,033	56,392	61,425	(11,959)	5/28/2014	1987
1775 Wiehle Avenue	Reston, VA	1	—	4,138	26,120	4,552	—	4,138	30,672	34,810	(4,218)	10/2/2017	2001
9201 Forest Hill Avenue	Richmond, VA	1	—	1,344	375	580	—	1,344	955	2,299	(165)	12/31/2018	1985
9960 Mayland Drive	Richmond, VA	1	—	2,614	15,930	3,812	—	2,614	19,742	22,356	(4,402)	5/20/2014	1994
1751 Blue Hills Drive	Roanoke, VA	1	—	2,689	7,761	—	—	2,689	7,761	10,450	(861)	12/31/2018	2003
Atlantic Corporate Park	Sterling, VA	2	—	5,752	29,316	2,885	—	5,752	32,201	37,953	(4,536)	10/2/2017	2008
Orbital Sciences Campus	Sterling, VA	3	—	12,275	19,320	1,876	—	12,275	21,196	33,471	(2,429)	12/31/2018	2001

					Initial Cost to Company				Costs Capitalized Subsequent to Acquisition				Cost amount carried at Close of Period
Property	Location	Number of Properties	Encumbrances (1)		Land		Buildings and Equipment				Impairments/ Writedowns		Land		Buildings and Equipment		Total (2)		Accumulated Depreciation (3)		Date(s) Acquired	Original Construction Date(s)
Sterling Park Business Center	Sterling, VA	1	—		5,871		44,324		109		—		5,871		44,433		50,304		(5,832)		10/2/2017	2016
65 Bowdoin Street	S. Burlington, VT	1	—		700		8,416		140		—		700		8,556		9,256		(2,742)		4/9/2010	2009
Stevens Center	Richland, WA	2	—		3,970		17,035		4,737		—		4,042		21,700		25,742		(12,262)		3/31/1997	1995
Unison Elliott Bay-Lab Space	Seattle, WA	2	—		17,316		34,281		49,266		—		17,316		83,547		100,863		(4,180)		12/31/2018	2000
Unison Elliott Bay-Office Space	Seattle, WA	1	—		9,324		18,459		2,122		—		9,324		20,581		29,905		(2,251)		12/31/2018	2000
5353 Yellowstone Road	Cheyenne, WY	1	—		1,915		8,217		2,085		—		1,950		10,267		12,217		(5,872)		3/31/1997	1995
		157	$	49,917	$	820,568	$	2,531,553	$	588,478	$	(4,525)	$	821,238	$	3,114,836	$	3,936,074	$	(561,458)
Properties Held for Sale
Parham Place (4)	Richmond, VA	3	—		913		1,099		572		—		913		1,671		2,584		(188)		6/9/2011	2006
		3	—		913		1,099		572		—		913		1,671		2,584		(188)
		160	$	49,917	$	821,481	$	2,532,652	$	589,050	$	(4,525)	$	822,151	$	3,116,507	$	3,938,658	$	(561,646)

(1) Represents mortgage debt, net of the unamortized balance of the fair value adjustments and debt issuance costs totaling $83.

(2) Excludes the value of real estate intangibles. Aggregate cost for federal income tax purposes is approximately $7,360,476.

(3) Depreciation on building and improvements is provided for periods ranging up to 40 years and on equipment up to seven years.

(4) Properties were sold in January 2023.

An analysis of the carrying amount of real estate properties and accumulated depreciation is as follows:

	Real Estate Properties		Accumulated Depreciation
Balance at December 31, 2019	$	3,493,231	$	387,656
Additions	122,116		83,828
Loss on asset impairment	(2,954)		—
Disposals	(31,193)		(13,125)
Cost basis adjustment (1)	(3,968)		(3,968)
Reclassification of assets of properties held for sale	(55,089)		(2,477)
Balance at December 31, 2020	3,522,143		451,914
Additions	584,805		92,266
Loss on asset impairment	(58,696)		—
Disposals	(72,137)		(8,675)
Cost basis adjustment (1)	(37,239)		(37,239)
Reclassification of assets of properties held for sale	(27,790)		(2,354)
Balance at December 31, 2021	3,911,086		495,912
Additions	222,951		96,966
Loss on asset impairment	(17,303)		—
Disposals	(173,841)		(26,997)
Cost basis adjustment (1)	(4,235)		(4,235)
Reclassification of assets of properties held for sale	(2,584)		(188)
Balance at December 31, 2022	$	3,936,074	$	561,458

(1)    Represents the reclassification between accumulated depreciation and building made to certain properties reclassified as assets of properties held for sale at fair value less costs to sell in accordance with GAAP.