Real Estate and Accumulated Depreciation (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 901,192
Buildings & Improvements, Initial Cost	2,979,113
Land, Total Cost	938,794
Buildings & Improvements, Total Cost	3,892,365
Total Cost	4,831,159
Accumulated Depreciation	1,570,377
Total Cost, Net of Accumulated Depreciation	3,260,782
Encumbrances	125,651
The changes in Total Real Estate Assets for the three years ended December 31, are as follows:
Balance at beginning of year	5,433,159	$ 5,238,881	$ 4,989,388
Acquisitions	156,154	328,898	215,998
Developments, improvements and expansions	105,891	113,876	84,130
Adjustments of property carrying values (Impairments)	0	(2,536)	(7,270)
Disposals(A)	(864,045)	(245,960)	(43,365)
Balance at end of year	4,831,159	5,433,159	5,238,881
The changes in Accumulated Depreciation and Amortization for the three years ended December 31, are as follows:
Balance at beginning of year	1,652,899	1,571,569	1,427,057
Depreciation for year	189,785	176,047	164,200
Disposals	(272,307)	(94,717)	(19,688)
Balance at end of year	1,570,377	$ 1,652,899	$ 1,571,569
Chandler, AZ [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	1,417
Buildings & Improvements, Initial Cost	3,490
Land, Total Cost	1,417
Buildings & Improvements, Total Cost	3,497
Total Cost	4,914
Accumulated Depreciation	187
Total Cost, Net of Accumulated Depreciation	4,727
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2022
Mesa, AZ [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 1,486
Buildings & Improvements, Initial Cost	3,202
Land, Total Cost	1,486
Buildings & Improvements, Total Cost	3,202
Total Cost	4,688
Accumulated Depreciation	160
Total Cost, Net of Accumulated Depreciation	4,528
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2022
Peoria, AZ [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 11,048
Buildings & Improvements, Initial Cost	16,918
Land, Total Cost	11,048
Buildings & Improvements, Total Cost	16,918
Total Cost	27,966
Accumulated Depreciation	0
Total Cost, Net of Accumulated Depreciation	27,966
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2023
Phoenix, AZ [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 18,701
Buildings & Improvements, Initial Cost	18,929
Land, Total Cost	18,701
Buildings & Improvements, Total Cost	26,768
Total Cost	45,469
Accumulated Depreciation	14,467
Total Cost, Net of Accumulated Depreciation	31,002
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	1999
Phoenix, AZ [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 15,352
Buildings & Improvements, Initial Cost	24,414
Land, Total Cost	15,352
Buildings & Improvements, Total Cost	31,287
Total Cost	46,639
Accumulated Depreciation	20,522
Total Cost, Net of Accumulated Depreciation	26,117
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2003
Phoenix, AZ (Peoria) [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 15,090
Buildings & Improvements, Initial Cost	36,880
Land, Total Cost	18,399
Buildings & Improvements, Total Cost	48,787
Total Cost	67,186
Accumulated Depreciation	18,672
Total Cost, Net of Accumulated Depreciation	48,514
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2012
Scottsdale, AZ [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 6,424
Buildings & Improvements, Initial Cost	7,684
Land, Total Cost	6,424
Buildings & Improvements, Total Cost	7,697
Total Cost	14,121
Accumulated Depreciation	547
Total Cost, Net of Accumulated Depreciation	13,574
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2022
Scottsdale, AZ [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 1,756
Buildings & Improvements, Initial Cost	4,404
Land, Total Cost	1,756
Buildings & Improvements, Total Cost	4,404
Total Cost	6,160
Accumulated Depreciation	240
Total Cost, Net of Accumulated Depreciation	5,920
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2022
Tempe, AZ [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 2,451
Buildings & Improvements, Initial Cost	4,640
Land, Total Cost	2,451
Buildings & Improvements, Total Cost	4,660
Total Cost	7,111
Accumulated Depreciation	262
Total Cost, Net of Accumulated Depreciation	6,849
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2022
Fontana, CA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 23,861
Buildings & Improvements, Initial Cost	57,931
Land, Total Cost	23,861
Buildings & Improvements, Total Cost	64,928
Total Cost	88,789
Accumulated Depreciation	21,122
Total Cost, Net of Accumulated Depreciation	67,667
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2014
Lafayette, CA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 21,431
Buildings & Improvements, Initial Cost	36,076
Land, Total Cost	21,432
Buildings & Improvements, Total Cost	36,086
Total Cost	57,518
Accumulated Depreciation	2,170
Total Cost, Net of Accumulated Depreciation	55,348
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2022
Lafayette, CA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 6,808
Buildings & Improvements, Initial Cost	32,751
Land, Total Cost	6,808
Buildings & Improvements, Total Cost	33,282
Total Cost	40,090
Accumulated Depreciation	1,990
Total Cost, Net of Accumulated Depreciation	38,100
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2022
Long Beach, CA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 0
Buildings & Improvements, Initial Cost	147,918
Land, Total Cost	0
Buildings & Improvements, Total Cost	200,646
Total Cost	200,646
Accumulated Depreciation	122,069
Total Cost, Net of Accumulated Depreciation	78,577
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2005
Oakland, CA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 4,361
Buildings & Improvements, Initial Cost	33,538
Land, Total Cost	4,361
Buildings & Improvements, Total Cost	33,538
Total Cost	37,899
Accumulated Depreciation	11,787
Total Cost, Net of Accumulated Depreciation	26,112
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2013
Roseville, CA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 18,400
Buildings & Improvements, Initial Cost	59,109
Land, Total Cost	18,400
Buildings & Improvements, Total Cost	59,886
Total Cost	78,286
Accumulated Depreciation	18,554
Total Cost, Net of Accumulated Depreciation	59,732
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2014
Roseville, CA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 5,174
Buildings & Improvements, Initial Cost	7,923
Land, Total Cost	5,174
Buildings & Improvements, Total Cost	8,586
Total Cost	13,760
Accumulated Depreciation	2,641
Total Cost, Net of Accumulated Depreciation	11,119
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2014
Centennial, CO [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 7,833
Buildings & Improvements, Initial Cost	35,550
Land, Total Cost	9,075
Buildings & Improvements, Total Cost	72,613
Total Cost	81,688
Accumulated Depreciation	51,774
Total Cost, Net of Accumulated Depreciation	29,914
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	1997
Colorado Springs, CO [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 4,890
Buildings & Improvements, Initial Cost	25,531
Land, Total Cost	4,890
Buildings & Improvements, Total Cost	34,325
Total Cost	39,215
Accumulated Depreciation	15,384
Total Cost, Net of Accumulated Depreciation	23,831
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2011
Colorado Springs, CO [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 4,111
Buildings & Improvements, Initial Cost	22,140
Land, Total Cost	4,111
Buildings & Improvements, Total Cost	28,211
Total Cost	32,322
Accumulated Depreciation	8,860
Total Cost, Net of Accumulated Depreciation	23,462
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2011
Denver, CO [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 20,733
Buildings & Improvements, Initial Cost	22,818
Land, Total Cost	20,804
Buildings & Improvements, Total Cost	34,203
Total Cost	55,007
Accumulated Depreciation	18,802
Total Cost, Net of Accumulated Depreciation	36,205
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2003
Denver, CO [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 1,222
Buildings & Improvements, Initial Cost	4,305
Land, Total Cost	1,223
Buildings & Improvements, Total Cost	4,490
Total Cost	5,713
Accumulated Depreciation	182
Total Cost, Net of Accumulated Depreciation	5,531
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2022
Parker, CO [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 4,233
Buildings & Improvements, Initial Cost	16,744
Land, Total Cost	4,233
Buildings & Improvements, Total Cost	17,982
Total Cost	22,215
Accumulated Depreciation	5,857
Total Cost, Net of Accumulated Depreciation	16,358
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2003
Parker, CO [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 398
Buildings & Improvements, Initial Cost	21,512
Land, Total Cost	398
Buildings & Improvements, Total Cost	26,027
Total Cost	26,425
Accumulated Depreciation	8,304
Total Cost, Net of Accumulated Depreciation	18,121
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2003
Parker, CO [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 2,474
Buildings & Improvements, Initial Cost	7,842
Land, Total Cost	2,456
Buildings & Improvements, Total Cost	7,842
Total Cost	10,298
Accumulated Depreciation	299
Total Cost, Net of Accumulated Depreciation	9,999
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2023
Guilford, CT [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 4,588
Buildings & Improvements, Initial Cost	41,892
Land, Total Cost	6,457
Buildings & Improvements, Total Cost	64,913
Total Cost	71,370
Accumulated Depreciation	16,463
Total Cost, Net of Accumulated Depreciation	54,907
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2015
Boca Raton, FL [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 23,120
Buildings & Improvements, Initial Cost	58,982
Land, Total Cost	23,120
Buildings & Improvements, Total Cost	62,223
Total Cost	85,343
Accumulated Depreciation	3,599
Total Cost, Net of Accumulated Depreciation	81,744
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2022
Boynton Beach, FL [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 6,048
Buildings & Improvements, Initial Cost	9,256
Land, Total Cost	6,048
Buildings & Improvements, Total Cost	10,881
Total Cost	16,929
Accumulated Depreciation	1,163
Total Cost, Net of Accumulated Depreciation	15,766
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2021
Brandon, FL [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 0
Buildings & Improvements, Initial Cost	4,111
Land, Total Cost	0
Buildings & Improvements, Total Cost	27,783
Total Cost	27,783
Accumulated Depreciation	6,140
Total Cost, Net of Accumulated Depreciation	21,643
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	1972
Brandon, FL [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 2,938
Buildings & Improvements, Initial Cost	13,685
Land, Total Cost	2,938
Buildings & Improvements, Total Cost	20,448
Total Cost	23,386
Accumulated Depreciation	5,863
Total Cost, Net of Accumulated Depreciation	17,523
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2013
Casselberry, FL [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 10,336
Buildings & Improvements, Initial Cost	30,349
Land, Total Cost	10,336
Buildings & Improvements, Total Cost	30,788
Total Cost	41,124
Accumulated Depreciation	2,823
Total Cost, Net of Accumulated Depreciation	38,301
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2022
Delray Beach, FL [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 12,664
Buildings & Improvements, Initial Cost	26,006
Land, Total Cost	12,664
Buildings & Improvements, Total Cost	26,228
Total Cost	38,892
Accumulated Depreciation	2,404
Total Cost, Net of Accumulated Depreciation	36,488
Encumbrances	$ 16,551
Date of Construction (C) Acquisition (A)	2021
Estero, FL [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 3,504
Buildings & Improvements, Initial Cost	13,286
Land, Total Cost	3,504
Buildings & Improvements, Total Cost	13,300
Total Cost	16,804
Accumulated Depreciation	84
Total Cost, Net of Accumulated Depreciation	16,720
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2023
Fort Walton Beach, FL [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 3,643
Buildings & Improvements, Initial Cost	5,612
Land, Total Cost	3,462
Buildings & Improvements, Total Cost	6,244
Total Cost	9,706
Accumulated Depreciation	1,358
Total Cost, Net of Accumulated Depreciation	8,348
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2021
Jupiter, FL [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 8,764
Buildings & Improvements, Initial Cost	20,051
Land, Total Cost	8,764
Buildings & Improvements, Total Cost	21,873
Total Cost	30,637
Accumulated Depreciation	2,431
Total Cost, Net of Accumulated Depreciation	28,206
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2020
Miami, FL [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 11,626
Buildings & Improvements, Initial Cost	30,457
Land, Total Cost	26,743
Buildings & Improvements, Total Cost	122,827
Total Cost	149,570
Accumulated Depreciation	63,939
Total Cost, Net of Accumulated Depreciation	85,631
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2006
Naples, FL [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 10,172
Buildings & Improvements, Initial Cost	39,342
Land, Total Cost	10,172
Buildings & Improvements, Total Cost	44,674
Total Cost	54,846
Accumulated Depreciation	14,857
Total Cost, Net of Accumulated Depreciation	39,989
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2013
Orlando, FL [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 8,528
Buildings & Improvements, Initial Cost	56,684
Land, Total Cost	13,057
Buildings & Improvements, Total Cost	82,511
Total Cost	95,568
Accumulated Depreciation	19,734
Total Cost, Net of Accumulated Depreciation	75,834
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2016
Orlando, FL [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 9,451
Buildings & Improvements, Initial Cost	16,424
Land, Total Cost	9,451
Buildings & Improvements, Total Cost	16,906
Total Cost	26,357
Accumulated Depreciation	1,875
Total Cost, Net of Accumulated Depreciation	24,482
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2020
Palm Harbor, FL [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 1,137
Buildings & Improvements, Initial Cost	4,089
Land, Total Cost	1,137
Buildings & Improvements, Total Cost	5,799
Total Cost	6,936
Accumulated Depreciation	4,581
Total Cost, Net of Accumulated Depreciation	2,355
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	1995
Plantation, FL [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 21,729
Buildings & Improvements, Initial Cost	37,331
Land, Total Cost	22,112
Buildings & Improvements, Total Cost	98,371
Total Cost	120,483
Accumulated Depreciation	55,988
Total Cost, Net of Accumulated Depreciation	64,495
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2007
Tamarac, FL [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 16,730
Buildings & Improvements, Initial Cost	22,139
Land, Total Cost	16,730
Buildings & Improvements, Total Cost	23,388
Total Cost	40,118
Accumulated Depreciation	2,561
Total Cost, Net of Accumulated Depreciation	37,557
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2021
Tampa, FL [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 10,000
Buildings & Improvements, Initial Cost	10,907
Land, Total Cost	10,000
Buildings & Improvements, Total Cost	11,355
Total Cost	21,355
Accumulated Depreciation	1,647
Total Cost, Net of Accumulated Depreciation	19,708
Encumbrances	$ 9,100
Date of Construction (C) Acquisition (A)	2019
Winter Garden, FL [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 38,945
Buildings & Improvements, Initial Cost	130,382
Land, Total Cost	38,945
Buildings & Improvements, Total Cost	141,806
Total Cost	180,751
Accumulated Depreciation	50,792
Total Cost, Net of Accumulated Depreciation	129,959
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2013
Alpharetta, GA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 1,370
Buildings & Improvements, Initial Cost	3,003
Land, Total Cost	1,370
Buildings & Improvements, Total Cost	3,007
Total Cost	4,377
Accumulated Depreciation	202
Total Cost, Net of Accumulated Depreciation	4,175
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2022
Alpharetta, GA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 1,489
Buildings & Improvements, Initial Cost	7,489
Land, Total Cost	1,490
Buildings & Improvements, Total Cost	7,542
Total Cost	9,032
Accumulated Depreciation	189
Total Cost, Net of Accumulated Depreciation	8,843
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2023
Atlanta, GA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 14,078
Buildings & Improvements, Initial Cost	41,050
Land, Total Cost	14,078
Buildings & Improvements, Total Cost	48,529
Total Cost	62,607
Accumulated Depreciation	22,465
Total Cost, Net of Accumulated Depreciation	40,142
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2009
Atlanta, GA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 12,358
Buildings & Improvements, Initial Cost	17,103
Land, Total Cost	12,365
Buildings & Improvements, Total Cost	17,590
Total Cost	29,955
Accumulated Depreciation	1,579
Total Cost, Net of Accumulated Depreciation	28,376
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2021
Atlanta, GA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 2,719
Buildings & Improvements, Initial Cost	5,379
Land, Total Cost	2,719
Buildings & Improvements, Total Cost	5,406
Total Cost	8,125
Accumulated Depreciation	301
Total Cost, Net of Accumulated Depreciation	7,824
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2022
Cumming, GA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 14,249
Buildings & Improvements, Initial Cost	23,653
Land, Total Cost	14,249
Buildings & Improvements, Total Cost	30,366
Total Cost	44,615
Accumulated Depreciation	18,962
Total Cost, Net of Accumulated Depreciation	25,653
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2003
Cumming, GA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 6,851
Buildings & Improvements, Initial Cost	49,659
Land, Total Cost	6,851
Buildings & Improvements, Total Cost	53,679
Total Cost	60,530
Accumulated Depreciation	18,676
Total Cost, Net of Accumulated Depreciation	41,854
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2013
Douglasville, GA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 2,839
Buildings & Improvements, Initial Cost	5,511
Land, Total Cost	2,839
Buildings & Improvements, Total Cost	7,582
Total Cost	10,421
Accumulated Depreciation	2,027
Total Cost, Net of Accumulated Depreciation	8,394
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2018
Kennesaw, GA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 3,819
Buildings & Improvements, Initial Cost	10,807
Land, Total Cost	3,826
Buildings & Improvements, Total Cost	11,007
Total Cost	14,833
Accumulated Depreciation	293
Total Cost, Net of Accumulated Depreciation	14,540
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2023
Roswell, GA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 6,566
Buildings & Improvements, Initial Cost	15,005
Land, Total Cost	7,894
Buildings & Improvements, Total Cost	29,833
Total Cost	37,727
Accumulated Depreciation	15,546
Total Cost, Net of Accumulated Depreciation	22,181
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2007
Snellville, GA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 4,077
Buildings & Improvements, Initial Cost	2,217
Land, Total Cost	4,079
Buildings & Improvements, Total Cost	2,217
Total Cost	6,296
Accumulated Depreciation	13
Total Cost, Net of Accumulated Depreciation	6,283
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2023
Snellville, GA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 10,185
Buildings & Improvements, Initial Cost	51,815
Land, Total Cost	7,859
Buildings & Improvements, Total Cost	53,133
Total Cost	60,992
Accumulated Depreciation	31,635
Total Cost, Net of Accumulated Depreciation	29,357
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2007
Suwanee, GA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 13,479
Buildings & Improvements, Initial Cost	23,923
Land, Total Cost	13,335
Buildings & Improvements, Total Cost	39,257
Total Cost	52,592
Accumulated Depreciation	22,469
Total Cost, Net of Accumulated Depreciation	30,123
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2003
Chicago, IL [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 22,642
Buildings & Improvements, Initial Cost	82,754
Land, Total Cost	22,642
Buildings & Improvements, Total Cost	85,082
Total Cost	107,724
Accumulated Depreciation	27,404
Total Cost, Net of Accumulated Depreciation	80,320
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2014
Chicago, IL [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 23,588
Buildings & Improvements, Initial Cost	45,632
Land, Total Cost	23,588
Buildings & Improvements, Total Cost	46,026
Total Cost	69,614
Accumulated Depreciation	12,083
Total Cost, Net of Accumulated Depreciation	57,531
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2017
Schaumburg, IL [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 27,466
Buildings & Improvements, Initial Cost	84,679
Land, Total Cost	21,736
Buildings & Improvements, Total Cost	83,667
Total Cost	105,403
Accumulated Depreciation	28,716
Total Cost, Net of Accumulated Depreciation	76,687
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2013
Timonium, MD [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 4,380
Buildings & Improvements, Initial Cost	9,921
Land, Total Cost	4,366
Buildings & Improvements, Total Cost	9,957
Total Cost	14,323
Accumulated Depreciation	363
Total Cost, Net of Accumulated Depreciation	13,960
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2023
Framingham, MA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 5,173
Buildings & Improvements, Initial Cost	208
Land, Total Cost	5,173
Buildings & Improvements, Total Cost	5,982
Total Cost	11,155
Accumulated Depreciation	188
Total Cost, Net of Accumulated Depreciation	10,967
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2013
Brentwood, MO [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 10,018
Buildings & Improvements, Initial Cost	32,053
Land, Total Cost	10,018
Buildings & Improvements, Total Cost	41,264
Total Cost	51,282
Accumulated Depreciation	29,585
Total Cost, Net of Accumulated Depreciation	21,697
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	1998
East Hanover, NJ [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 3,847
Buildings & Improvements, Initial Cost	23,798
Land, Total Cost	3,847
Buildings & Improvements, Total Cost	29,961
Total Cost	33,808
Accumulated Depreciation	16,564
Total Cost, Net of Accumulated Depreciation	17,244
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2007
Edgewater, NJ [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 7,714
Buildings & Improvements, Initial Cost	30,473
Land, Total Cost	7,714
Buildings & Improvements, Total Cost	48,040
Total Cost	55,754
Accumulated Depreciation	19,562
Total Cost, Net of Accumulated Depreciation	36,192
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2007
Freehold, NJ [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 2,460
Buildings & Improvements, Initial Cost	2,475
Land, Total Cost	3,166
Buildings & Improvements, Total Cost	3,882
Total Cost	7,048
Accumulated Depreciation	1,826
Total Cost, Net of Accumulated Depreciation	5,222
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2005
Hamilton, NJ [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 8,039
Buildings & Improvements, Initial Cost	49,896
Land, Total Cost	10,014
Buildings & Improvements, Total Cost	99,766
Total Cost	109,780
Accumulated Depreciation	56,681
Total Cost, Net of Accumulated Depreciation	53,099
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2003
Princeton, NJ [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 17,991
Buildings & Improvements, Initial Cost	82,063
Land, Total Cost	18,998
Buildings & Improvements, Total Cost	124,748
Total Cost	143,746
Accumulated Depreciation	80,008
Total Cost, Net of Accumulated Depreciation	63,738
Encumbrances	$ 100,000
Date of Construction (C) Acquisition (A)	1997
Voorhees, NJ [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 1,350
Buildings & Improvements, Initial Cost	1,837
Land, Total Cost	1,350
Buildings & Improvements, Total Cost	6,259
Total Cost	7,609
Accumulated Depreciation	761
Total Cost, Net of Accumulated Depreciation	6,848
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2020
Hempstead, NY [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 26,487
Buildings & Improvements, Initial Cost	14,418
Land, Total Cost	26,479
Buildings & Improvements, Total Cost	15,068
Total Cost	41,547
Accumulated Depreciation	1,848
Total Cost, Net of Accumulated Depreciation	39,699
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2020
Charlotte, NC [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 11,224
Buildings & Improvements, Initial Cost	82,124
Land, Total Cost	11,173
Buildings & Improvements, Total Cost	102,096
Total Cost	113,269
Accumulated Depreciation	37,888
Total Cost, Net of Accumulated Depreciation	75,381
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2012
Charlotte, NC [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 1,808
Buildings & Improvements, Initial Cost	30,392
Land, Total Cost	6,957
Buildings & Improvements, Total Cost	46,732
Total Cost	53,689
Accumulated Depreciation	15,280
Total Cost, Net of Accumulated Depreciation	38,409
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2013
Charlotte, NC [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 1,792
Buildings & Improvements, Initial Cost	0
Land, Total Cost	1,792
Buildings & Improvements, Total Cost	7,792
Total Cost	9,584
Accumulated Depreciation	1,289
Total Cost, Net of Accumulated Depreciation	8,295
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2017
Charlotte, NC [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 1,911
Buildings & Improvements, Initial Cost	6,892
Land, Total Cost	1,904
Buildings & Improvements, Total Cost	6,892
Total Cost	8,796
Accumulated Depreciation	43
Total Cost, Net of Accumulated Depreciation	8,753
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2023
Cornelius, NC [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 4,382
Buildings & Improvements, Initial Cost	15,184
Land, Total Cost	4,190
Buildings & Improvements, Total Cost	29,159
Total Cost	33,349
Accumulated Depreciation	12,672
Total Cost, Net of Accumulated Depreciation	20,677
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2007
Cincinnati, OH [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 19,572
Buildings & Improvements, Initial Cost	54,495
Land, Total Cost	19,572
Buildings & Improvements, Total Cost	81,230
Total Cost	100,802
Accumulated Depreciation	26,188
Total Cost, Net of Accumulated Depreciation	74,614
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2014
Columbus, OH [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 12,922
Buildings & Improvements, Initial Cost	46,006
Land, Total Cost	14,078
Buildings & Improvements, Total Cost	73,299
Total Cost	87,377
Accumulated Depreciation	54,616
Total Cost, Net of Accumulated Depreciation	32,761
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	1998
Columbus, OH [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 18,716
Buildings & Improvements, Initial Cost	64,617
Land, Total Cost	20,666
Buildings & Improvements, Total Cost	76,279
Total Cost	96,945
Accumulated Depreciation	28,930
Total Cost, Net of Accumulated Depreciation	68,015
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2011
Stow, OH [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 993
Buildings & Improvements, Initial Cost	9,028
Land, Total Cost	993
Buildings & Improvements, Total Cost	48,267
Total Cost	49,260
Accumulated Depreciation	29,824
Total Cost, Net of Accumulated Depreciation	19,436
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	1969
Portland, OR [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 20,208
Buildings & Improvements, Initial Cost	50,738
Land, Total Cost	20,208
Buildings & Improvements, Total Cost	66,808
Total Cost	87,016
Accumulated Depreciation	28,844
Total Cost, Net of Accumulated Depreciation	58,172
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2012
Portland, OR [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 10,122
Buildings & Improvements, Initial Cost	37,457
Land, Total Cost	10,122
Buildings & Improvements, Total Cost	38,455
Total Cost	48,577
Accumulated Depreciation	5,653
Total Cost, Net of Accumulated Depreciation	42,924
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2019
Easton, PA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 7,691
Buildings & Improvements, Initial Cost	20,405
Land, Total Cost	7,691
Buildings & Improvements, Total Cost	21,412
Total Cost	29,103
Accumulated Depreciation	3,280
Total Cost, Net of Accumulated Depreciation	25,823
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2020
Brentwood, TN [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 6,101
Buildings & Improvements, Initial Cost	25,956
Land, Total Cost	6,101
Buildings & Improvements, Total Cost	28,192
Total Cost	34,293
Accumulated Depreciation	9,931
Total Cost, Net of Accumulated Depreciation	24,362
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2013
Austin, TX [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 5,000
Buildings & Improvements, Initial Cost	8,838
Land, Total Cost	5,521
Buildings & Improvements, Total Cost	8,272
Total Cost	13,793
Accumulated Depreciation	106
Total Cost, Net of Accumulated Depreciation	13,687
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2023
Highland Village, TX [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 5,545
Buildings & Improvements, Initial Cost	28,365
Land, Total Cost	5,524
Buildings & Improvements, Total Cost	30,827
Total Cost	36,351
Accumulated Depreciation	12,088
Total Cost, Net of Accumulated Depreciation	24,263
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2013
Houston, TX [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 2,743
Buildings & Improvements, Initial Cost	18,506
Land, Total Cost	2,743
Buildings & Improvements, Total Cost	18,458
Total Cost	21,201
Accumulated Depreciation	1,011
Total Cost, Net of Accumulated Depreciation	20,190
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2022
Houston, TX [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 15,189
Buildings & Improvements, Initial Cost	6,531
Land, Total Cost	15,204
Buildings & Improvements, Total Cost	6,541
Total Cost	21,745
Accumulated Depreciation	184
Total Cost, Net of Accumulated Depreciation	21,561
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2023
Houston, TX [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 2,141
Buildings & Improvements, Initial Cost	6,689
Land, Total Cost	2,141
Buildings & Improvements, Total Cost	6,881
Total Cost	9,022
Accumulated Depreciation	62
Total Cost, Net of Accumulated Depreciation	8,960
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2023
Round Rock, TX [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 3,467
Buildings & Improvements, Initial Cost	8,839
Land, Total Cost	3,467
Buildings & Improvements, Total Cost	9,533
Total Cost	13,000
Accumulated Depreciation	1,421
Total Cost, Net of Accumulated Depreciation	11,579
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2019
San Antonio, TX [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 2,882
Buildings & Improvements, Initial Cost	37,327
Land, Total Cost	4,280
Buildings & Improvements, Total Cost	55,567
Total Cost	59,847
Accumulated Depreciation	35,474
Total Cost, Net of Accumulated Depreciation	24,373
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2002
San Antonio, TX [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 5,602
Buildings & Improvements, Initial Cost	39,196
Land, Total Cost	10,158
Buildings & Improvements, Total Cost	120,934
Total Cost	131,092
Accumulated Depreciation	58,868
Total Cost, Net of Accumulated Depreciation	72,224
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2007
San Antonio, TX [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 594
Buildings & Improvements, Initial Cost	0
Land, Total Cost	594
Buildings & Improvements, Total Cost	0
Total Cost	594
Accumulated Depreciation	0
Total Cost, Net of Accumulated Depreciation	594
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2022
Charlottesville, VA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 2,181
Buildings & Improvements, Initial Cost	6,571
Land, Total Cost	2,181
Buildings & Improvements, Total Cost	6,657
Total Cost	8,838
Accumulated Depreciation	593
Total Cost, Net of Accumulated Depreciation	8,245
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2021
Charlottesville, VA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 1,400
Buildings & Improvements, Initial Cost	2,537
Land, Total Cost	1,396
Buildings & Improvements, Total Cost	2,537
Total Cost	3,933
Accumulated Depreciation	168
Total Cost, Net of Accumulated Depreciation	3,765
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2021
Fairfax, VA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 15,681
Buildings & Improvements, Initial Cost	68,536
Land, Total Cost	15,681
Buildings & Improvements, Total Cost	72,131
Total Cost	87,812
Accumulated Depreciation	24,199
Total Cost, Net of Accumulated Depreciation	63,613
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2013
Fairfax, VA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 4,377
Buildings & Improvements, Initial Cost	10,868
Land, Total Cost	4,377
Buildings & Improvements, Total Cost	11,357
Total Cost	15,734
Accumulated Depreciation	592
Total Cost, Net of Accumulated Depreciation	15,142
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2022
Fairfax, VA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 1,830
Buildings & Improvements, Initial Cost	6,206
Land, Total Cost	1,830
Buildings & Improvements, Total Cost	6,227
Total Cost	8,057
Accumulated Depreciation	345
Total Cost, Net of Accumulated Depreciation	7,712
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2022
Fairfax, VA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 4,532
Buildings & Improvements, Initial Cost	5,221
Land, Total Cost	4,532
Buildings & Improvements, Total Cost	5,587
Total Cost	10,119
Accumulated Depreciation	333
Total Cost, Net of Accumulated Depreciation	9,786
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2022
Midlothian, VA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 634
Buildings & Improvements, Initial Cost	3,499
Land, Total Cost	633
Buildings & Improvements, Total Cost	3,499
Total Cost	4,132
Accumulated Depreciation	49
Total Cost, Net of Accumulated Depreciation	4,083
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2023
Richmond, VA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 7,331
Buildings & Improvements, Initial Cost	49,278
Land, Total Cost	7,330
Buildings & Improvements, Total Cost	52,428
Total Cost	59,758
Accumulated Depreciation	5,785
Total Cost, Net of Accumulated Depreciation	53,973
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2020
Richmond, VA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 11,879
Buildings & Improvements, Initial Cost	34,736
Land, Total Cost	11,879
Buildings & Improvements, Total Cost	37,852
Total Cost	49,731
Accumulated Depreciation	20,251
Total Cost, Net of Accumulated Depreciation	29,480
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2007
Springfield, VA [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 17,016
Buildings & Improvements, Initial Cost	40,038
Land, Total Cost	17,016
Buildings & Improvements, Total Cost	45,448
Total Cost	62,464
Accumulated Depreciation	24,166
Total Cost, Net of Accumulated Depreciation	38,298
Encumbrances	$ 0
Date of Construction (C) Acquisition (A)	2007
Portfolio Balance [Member]
Real Estate And Accumulated Depreciation [Line Items]
Land, Initial Cost	$ 14,915
Buildings & Improvements, Initial Cost	213,983
Land, Total Cost	14,915
Buildings & Improvements, Total Cost	213,983
Total Cost	228,898
Accumulated Depreciation	117,144
Total Cost, Net of Accumulated Depreciation	111,754
Encumbrances	$ 0