Schedule III-Real Estate and Accumulated Depreciation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Real Estate and Accumulated Depreciation
Encumbrances	$ 80,732
Initial Cost
Land	71,148
Bldg. & Improve.	189,880
Cost Capitalized Subsequent to Acquisition Improvements	326,852
Gross Amount at the end of the period
Encumbrances	80,732
Land	71,148
Land improvements	78,974	$ 65,520
Bldg. & Bldg. Improvements	379,864
Tenant improvements	32,753	31,576
Construction in Progress	21,419
Development Costs	3,722
Real estate assets held for sale, gross	587,880
Accumulated Depreciation	(98,219)	$ (84,989)	$ (111,052)
Industrial/Logistics Building | Bloomfield, CT
Initial Cost
Land	251
Bldg. & Improve.	1,198
Cost Capitalized Subsequent to Acquisition Improvements	1,599
Gross Amount at the end of the period
Land	251
Land improvements	327
Bldg. & Bldg. Improvements	1,752
Tenant improvements	718
Real estate assets held for sale, gross	3,048
Accumulated Depreciation	$ (1,363)
Depr. Life	40 years
Industrial/Logistics Building | Breinigsville, PA
Real Estate and Accumulated Depreciation
Encumbrances	$ 13,879
Initial Cost
Land	832
Bldg. & Improve.	4,599
Gross Amount at the end of the period
Encumbrances	13,879
Land	832
Land improvements	349
Bldg. & Bldg. Improvements	4,029
Tenant improvements	221
Real estate assets held for sale, gross	5,431
Accumulated Depreciation	$ (2,175)
Depr. Life	40 years
Industrial/Logistics Building | North Charleston, SC
Initial Cost
Land	$ 3,166
Bldg. & Improve.	24,372
Cost Capitalized Subsequent to Acquisition Improvements	1,276
Gross Amount at the end of the period
Land	3,166
Land improvements	4,288
Bldg. & Bldg. Improvements	20,868
Tenant improvements	492
Real estate assets held for sale, gross	28,814
Accumulated Depreciation	$ (892)
Depr. Life	40 years
Industrial/Logistics Building | Rock Hill, SC
Initial Cost
Land	$ 1,469
Bldg. & Improve.	22,558
Cost Capitalized Subsequent to Acquisition Improvements	606
Gross Amount at the end of the period
Land	1,469
Land improvements	330
Bldg. & Bldg. Improvements	22,228
Construction in Progress	606
Real estate assets held for sale, gross	24,633
Accumulated Depreciation	$ (524)
Depr. Life	40 years
Industrial/Logistics Building | Lakeland
Initial Cost
Land	$ 2,369
Bldg. & Improve.	15,169
Gross Amount at the end of the period
Land	2,369
Land improvements	2,833
Bldg. & Bldg. Improvements	12,288
Tenant improvements	48
Real estate assets held for sale, gross	17,538
Accumulated Depreciation	$ (661)
Depr. Life	40 years
Location 1 | Industrial/Logistics Building | East Granby, CT
Initial Cost
Land	$ 4
Bldg. & Improve.	1,722
Cost Capitalized Subsequent to Acquisition Improvements	1,268
Gross Amount at the end of the period
Land	4
Land improvements	824
Bldg. & Bldg. Improvements	2,139
Tenant improvements	27
Real estate assets held for sale, gross	2,994
Accumulated Depreciation	$ (2,169)
Depr. Life	40 years
Location 1 | Industrial/Logistics Building | Windsor, CT
Initial Cost
Land	$ 12
Cost Capitalized Subsequent to Acquisition Improvements	8,346
Gross Amount at the end of the period
Land	12
Land improvements	457
Bldg. & Bldg. Improvements	6,276
Tenant improvements	1,613
Real estate assets held for sale, gross	8,358
Accumulated Depreciation	$ (4,485)
Depr. Life	40 years
Location 1 | Industrial/Logistics Building | Lower Nazareth Township, PA.
Initial Cost
Land	$ 1,351
Cost Capitalized Subsequent to Acquisition Improvements	15,727
Gross Amount at the end of the period
Land	1,351
Land improvements	1,402
Bldg. & Bldg. Improvements	13,075
Tenant improvements	1,250
Real estate assets held for sale, gross	17,078
Accumulated Depreciation	$ (5,082)
Depr. Life	40 years
Location 1 | Industrial/Logistics Building | Hanover Township, PA.
Initial Cost
Land	$ 3,620
Cost Capitalized Subsequent to Acquisition Improvements	17,085
Gross Amount at the end of the period
Land	3,620
Land improvements	4,632
Bldg. & Bldg. Improvements	10,353
Tenant improvements	2,100
Real estate assets held for sale, gross	20,705
Accumulated Depreciation	$ (4,742)
Depr. Life	40 years
Location 1 | Industrial/Logistics Building | Charlotte, NC
Initial Cost
Land	$ 4,606
Bldg. & Improve.	37,074
Cost Capitalized Subsequent to Acquisition Improvements	1,861
Gross Amount at the end of the period
Land	4,606
Land improvements	4,182
Bldg. & Bldg. Improvements	33,947
Tenant improvements	806
Real estate assets held for sale, gross	43,541
Accumulated Depreciation	$ (1,915)
Depr. Life	40 years
Location 1 | Industrial/Logistics Building | Concord, NC
Real Estate and Accumulated Depreciation
Encumbrances	$ 10,919
Initial Cost
Land	1,600
Bldg. & Improve.	15,189
Cost Capitalized Subsequent to Acquisition Improvements	325
Gross Amount at the end of the period
Encumbrances	10,919
Land	1,600
Land improvements	1,598
Bldg. & Bldg. Improvements	13,042
Tenant improvements	874
Real estate assets held for sale, gross	17,114
Accumulated Depreciation	$ (3,409)
Depr. Life	40 years
Location 1 | Industrial/Logistics Building | Orlando, FL
Real Estate and Accumulated Depreciation
Encumbrances	$ 6,007
Initial Cost
Land	1,150
Bldg. & Improve.	8,204
Gross Amount at the end of the period
Encumbrances	6,007
Land	1,150
Land improvements	833
Bldg. & Bldg. Improvements	6,517
Tenant improvements	854
Real estate assets held for sale, gross	9,354
Accumulated Depreciation	$ (1,241)
Depr. Life	40 years
Location 1 | Industrial/Logistics Building | Allentown, PA
Initial Cost
Land	$ 2,344
Cost Capitalized Subsequent to Acquisition Improvements	9,799
Gross Amount at the end of the period
Land	2,344
Land improvements	3,039
Bldg. & Bldg. Improvements	5,902
Tenant improvements	858
Real estate assets held for sale, gross	12,143
Accumulated Depreciation	$ (1,690)
Depr. Life	40 years
Location 1 | Industrial/Logistics Building | Boynton Beach
Initial Cost
Land	$ 2,346
Bldg. & Improve.	5,911
Gross Amount at the end of the period
Land	2,346
Land improvements	175
Bldg. & Bldg. Improvements	5,696
Tenant improvements	40
Real estate assets held for sale, gross	8,257
Accumulated Depreciation	$ (90)
Depr. Life	40 years
Location 2 | Industrial/Logistics Building | East Granby, CT
Initial Cost
Land	$ 4
Cost Capitalized Subsequent to Acquisition Improvements	2,205
Gross Amount at the end of the period
Land	4
Land improvements	235
Bldg. & Bldg. Improvements	1,688
Tenant improvements	282
Real estate assets held for sale, gross	2,209
Accumulated Depreciation	$ (1,756)
Depr. Life	40 years
Location 2 | Industrial/Logistics Building | Windsor, CT
Initial Cost
Land	$ 7
Cost Capitalized Subsequent to Acquisition Improvements	3,495
Gross Amount at the end of the period
Land	7
Land improvements	48
Bldg. & Bldg. Improvements	3,216
Tenant improvements	231
Real estate assets held for sale, gross	3,502
Accumulated Depreciation	$ (2,099)
Depr. Life	40 years
Location 2 | Industrial/Logistics Building | Lower Nazareth Township, PA.
Initial Cost
Land	$ 721
Cost Capitalized Subsequent to Acquisition Improvements	11,359
Gross Amount at the end of the period
Land	721
Land improvements	1,446
Bldg. & Bldg. Improvements	9,068
Tenant improvements	845
Real estate assets held for sale, gross	12,080
Accumulated Depreciation	$ (4,355)
Depr. Life	40 years
Location 2 | Industrial/Logistics Building | Hanover Township, PA.
Initial Cost
Land	$ 4,022
Cost Capitalized Subsequent to Acquisition Improvements	16,661
Gross Amount at the end of the period
Land	4,022
Land improvements	4,045
Bldg. & Bldg. Improvements	11,185
Tenant improvements	1,431
Real estate assets held for sale, gross	20,683
Accumulated Depreciation	$ (5,241)
Depr. Life	40 years
Location 2 | Industrial/Logistics Building | Charlotte, NC
Initial Cost
Land	$ 5,714
Cost Capitalized Subsequent to Acquisition Improvements	33,626
Gross Amount at the end of the period
Land	5,714
Land improvements	17,219
Bldg. & Bldg. Improvements	12,872
Tenant improvements	3,535
Real estate assets held for sale, gross	39,340
Accumulated Depreciation	$ (1,707)
Depr. Life	40 years
Location 2 | Industrial/Logistics Building | Concord, NC
Initial Cost
Land	$ 1,412
Cost Capitalized Subsequent to Acquisition Improvements	10,454
Gross Amount at the end of the period
Land	1,412
Land improvements	2,675
Bldg. & Bldg. Improvements	6,588
Tenant improvements	1,191
Real estate assets held for sale, gross	11,866
Accumulated Depreciation	$ (1,644)
Depr. Life	40 years
Location 2 | Industrial/Logistics Building | Orlando, FL
Real Estate and Accumulated Depreciation
Encumbrances	$ 4,778
Initial Cost
Land	1,555
Bldg. & Improve.	6,386
Gross Amount at the end of the period
Encumbrances	4,778
Land	1,555
Land improvements	390
Bldg. & Bldg. Improvements	5,268
Tenant improvements	728
Real estate assets held for sale, gross	7,941
Accumulated Depreciation	$ (895)
Depr. Life	40 years
Location 2 | Industrial/Logistics Building | Allentown, PA
Initial Cost
Land	$ 2,163
Bldg. & Improve.	10,728
Cost Capitalized Subsequent to Acquisition Improvements	445
Gross Amount at the end of the period
Land	2,163
Land improvements	426
Bldg. & Bldg. Improvements	10,204
Tenant improvements	132
Construction in Progress	411
Real estate assets held for sale, gross	13,336
Accumulated Depreciation	$ (465)
Depr. Life	40 years
Location 2 | Industrial/Logistics Building | Boynton Beach
Initial Cost
Land	$ 1,673
Bldg. & Improve.	6,556
Gross Amount at the end of the period
Land	1,673
Land improvements	194
Bldg. & Bldg. Improvements	6,318
Tenant improvements	44
Real estate assets held for sale, gross	8,229
Accumulated Depreciation	$ (100)
Depr. Life	40 years
Location 3 | Industrial/Logistics Building | East Granby, CT
Initial Cost
Land	$ 4
Cost Capitalized Subsequent to Acquisition Improvements	3,425
Gross Amount at the end of the period
Land	4
Land improvements	412
Bldg. & Bldg. Improvements	2,421
Tenant improvements	592
Real estate assets held for sale, gross	3,429
Accumulated Depreciation	$ (2,644)
Depr. Life	40 years
Location 3 | Industrial/Logistics Building | Windsor, CT
Initial Cost
Land	$ 259
Cost Capitalized Subsequent to Acquisition Improvements	6,185
Gross Amount at the end of the period
Land	259
Land improvements	1,641
Bldg. & Bldg. Improvements	3,866
Tenant improvements	678
Real estate assets held for sale, gross	6,444
Accumulated Depreciation	$ (3,249)
Depr. Life	40 years
Location 3 | Industrial/Logistics Building | Charlotte, NC
Initial Cost
Land	$ 1,197
Bldg. & Improve.	13,028
Cost Capitalized Subsequent to Acquisition Improvements	5
Gross Amount at the end of the period
Land	1,197
Land improvements	676
Bldg. & Bldg. Improvements	12,337
Tenant improvements	20
Real estate assets held for sale, gross	14,230
Accumulated Depreciation	$ (489)
Depr. Life	40 years
Location 3 | Industrial/Logistics Building | Concord, NC
Initial Cost
Land	$ 1,304
Cost Capitalized Subsequent to Acquisition Improvements	9,624
Gross Amount at the end of the period
Land	1,304
Land improvements	2,461
Bldg. & Bldg. Improvements	6,265
Tenant improvements	898
Real estate assets held for sale, gross	10,928
Accumulated Depreciation	$ (1,065)
Depr. Life	40 years
Location 3 | Industrial/Logistics Building | Orlando, FL
Initial Cost
Land	$ 1,407
Bldg. & Improve.	5,675
Cost Capitalized Subsequent to Acquisition Improvements	15
Gross Amount at the end of the period
Land	1,407
Land improvements	588
Bldg. & Bldg. Improvements	4,823
Tenant improvements	264
Construction in Progress	15
Real estate assets held for sale, gross	7,097
Accumulated Depreciation	$ (701)
Depr. Life	40 years
Location 3 | Industrial/Logistics Building | Allentown, PA
Initial Cost
Land	$ 2,226
Cost Capitalized Subsequent to Acquisition Improvements	12,560
Gross Amount at the end of the period
Land	2,226
Land improvements	4,509
Bldg. & Bldg. Improvements	7,779
Construction in Progress	272
Real estate assets held for sale, gross	14,786
Accumulated Depreciation	$ (265)
Depr. Life	40 years
Location 4 | Industrial/Logistics Building | Windsor, CT
Initial Cost
Land	$ 13
Cost Capitalized Subsequent to Acquisition Improvements	7,652
Gross Amount at the end of the period
Land	13
Land improvements	634
Bldg. & Bldg. Improvements	5,654
Tenant improvements	1,364
Real estate assets held for sale, gross	7,665
Accumulated Depreciation	$ (3,721)
Depr. Life	40 years
Location 4 | Industrial/Logistics Building | Orlando, FL
Initial Cost
Land	$ 2,828
Bldg. & Improve.	11,511
Gross Amount at the end of the period
Land	2,828
Land improvements	213
Bldg. & Bldg. Improvements	11,192
Tenant improvements	106
Real estate assets held for sale, gross	14,339
Accumulated Depreciation	$ (180)
Depr. Life	40 years
Location 5 | Industrial/Logistics Building | Windsor, CT
Initial Cost
Land	$ 57
Cost Capitalized Subsequent to Acquisition Improvements	16,084
Gross Amount at the end of the period
Land	57
Land improvements	1,055
Bldg. & Bldg. Improvements	13,932
Tenant improvements	1,097
Real estate assets held for sale, gross	16,141
Accumulated Depreciation	$ (6,509)
Depr. Life	40 years
Location 5 | Industrial/Logistics Building | Orlando, FL
Initial Cost
Land	$ 2,867
Cost Capitalized Subsequent to Acquisition Improvements	7,654
Gross Amount at the end of the period
Land	2,867
Land improvements	1,840
Bldg. & Bldg. Improvements	5,814
Real estate assets held for sale, gross	10,521
Accumulated Depreciation	$ (74)
Depr. Life	40 years
Location 6 | Industrial/Logistics Building | Windsor, CT
Real Estate and Accumulated Depreciation
Encumbrances	$ 15,473
Initial Cost
Land	13
Cost Capitalized Subsequent to Acquisition Improvements	6,474
Gross Amount at the end of the period
Encumbrances	15,473
Land	13
Land improvements	101
Bldg. & Bldg. Improvements	5,438
Tenant improvements	935
Real estate assets held for sale, gross	6,487
Accumulated Depreciation	$ (3,555)
Depr. Life	40 years
Location 6 | Industrial/Logistics Building | Orlando, FL
Initial Cost
Land	$ 2,791
Cost Capitalized Subsequent to Acquisition Improvements	8,699
Gross Amount at the end of the period
Land	2,791
Land improvements	1,829
Bldg. & Bldg. Improvements	6,012
Construction in Progress	858
Real estate assets held for sale, gross	11,490
Accumulated Depreciation	$ (75)
Depr. Life	40 years
Location 7 | Industrial/Logistics Building | Windsor, CT
Initial Cost
Land	$ 16
Cost Capitalized Subsequent to Acquisition Improvements	7,904
Gross Amount at the end of the period
Land	16
Land improvements	112
Bldg. & Bldg. Improvements	7,083
Tenant improvements	709
Real estate assets held for sale, gross	7,920
Accumulated Depreciation	$ (4,331)
Depr. Life	40 years
Location 8 | Industrial/Logistics Building | Windsor, CT
Initial Cost
Land	$ 15
Cost Capitalized Subsequent to Acquisition Improvements	17,292
Gross Amount at the end of the period
Land	15
Land improvements	199
Bldg. & Bldg. Improvements	13,920
Tenant improvements	3,173
Real estate assets held for sale, gross	17,307
Accumulated Depreciation	$ (8,955)
Depr. Life	40 years
Location 9 | Industrial/Logistics Building | Windsor, CT
Real Estate and Accumulated Depreciation
Encumbrances	$ 16,666
Initial Cost
Land	20
Cost Capitalized Subsequent to Acquisition Improvements	10,325
Gross Amount at the end of the period
Encumbrances	16,666
Land	20
Land improvements	804
Bldg. & Bldg. Improvements	8,238
Tenant improvements	1,283
Real estate assets held for sale, gross	10,345
Accumulated Depreciation	$ (4,633)
Depr. Life	40 years
Location 10 | Industrial/Logistics Building | Windsor, CT
Initial Cost
Land	$ 12
Cost Capitalized Subsequent to Acquisition Improvements	6,978
Gross Amount at the end of the period
Land	12
Land improvements	473
Bldg. & Bldg. Improvements	6,288
Tenant improvements	217
Real estate assets held for sale, gross	6,990
Accumulated Depreciation	$ (3,304)
Depr. Life	40 years
Location 11 | Industrial/Logistics Building | Windsor, CT
Initial Cost
Land	$ 16
Cost Capitalized Subsequent to Acquisition Improvements	10,017
Gross Amount at the end of the period
Land	16
Land improvements	2,364
Bldg. & Bldg. Improvements	6,917
Tenant improvements	736
Real estate assets held for sale, gross	10,033
Accumulated Depreciation	$ (2,303)
Depr. Life	40 years
Location 12 | Industrial/Logistics Building | Windsor, CT
Real Estate and Accumulated Depreciation
Encumbrances	$ 13,010
Initial Cost
Land	26
Cost Capitalized Subsequent to Acquisition Improvements	15,556
Gross Amount at the end of the period
Encumbrances	13,010
Land	26
Land improvements	3,357
Bldg. & Bldg. Improvements	11,087
Tenant improvements	1,112
Real estate assets held for sale, gross	15,582
Accumulated Depreciation	$ (2,578)
Depr. Life	40 years
Location 13 | Industrial/Logistics Building | Windsor, CT
Initial Cost
Land	$ 20
Cost Capitalized Subsequent to Acquisition Improvements	20,480
Gross Amount at the end of the period
Land	20
Land improvements	2,947
Bldg. & Bldg. Improvements	16,279
Tenant improvements	1,249
Construction in Progress	5
Real estate assets held for sale, gross	20,500
Accumulated Depreciation	$ (263)
Depr. Life	40 years
New England Tradeport | Undeveloped Land
Initial Cost
Land	$ 693
Cost Capitalized Subsequent to Acquisition Improvements	1,014
Gross Amount at the end of the period
Land	693
Land improvements	99
Development Costs	915
Real estate assets held for sale, gross	1,707
Accumulated Depreciation	(80)
Griffin Center/Griffin Center South | Undeveloped Land
Initial Cost
Land	348
Cost Capitalized Subsequent to Acquisition Improvements	921
Gross Amount at the end of the period
Land	348
Land improvements	22
Development Costs	899
Real estate assets held for sale, gross	1,269
Accumulated Depreciation	(21)
Phoenix Crossing | Undeveloped Land
Initial Cost
Land	48
Cost Capitalized Subsequent to Acquisition Improvements	1,409
Gross Amount at the end of the period
Land	48
Development Costs	1,409
Real estate assets held for sale, gross	1,457
Other. | Undeveloped Land
Initial Cost
Land	613
Cost Capitalized Subsequent to Acquisition Improvements	2,101
Gross Amount at the end of the period
Land	613
Land improvements	691
Construction in Progress	911
Development Costs	499
Real estate assets held for sale, gross	2,714
Accumulated Depreciation	(524)
American Parkway | Undeveloped Land
Initial Cost
Land	4,229
Cost Capitalized Subsequent to Acquisition Improvements	8,271
Gross Amount at the end of the period
Land	4,229
Construction in Progress	8,271
Real estate assets held for sale, gross	12,500
Lehigh County, PA | Undeveloped Land
Initial Cost
Land	6,614
Gross Amount at the end of the period
Land	6,614
Real estate assets held for sale, gross	6,614
Undeveloped Rock Hill, SC | Undeveloped Land
Initial Cost
Land	1,121
Cost Capitalized Subsequent to Acquisition Improvements	10,070
Gross Amount at the end of the period
Land	1,121
Construction in Progress	10,070
Real estate assets held for sale, gross	$ 11,191