Property Portfolio - Gross Investment (Details)

v3.21.2

Property Portfolio - Gross Investment (Details) - USD ($) $ in Thousands																											6 Months Ended	12 Months Ended
	Jun. 02, 2021	Apr. 21, 2021	Apr. 19, 2021	Apr. 16, 2021	Apr. 13, 2021	Apr. 06, 2021	Mar. 09, 2021	Jan. 15, 2021	Jan. 12, 2021	Dec. 30, 2020	Dec. 29, 2020	Dec. 14, 2020	Dec. 01, 2020	Nov. 23, 2020	Nov. 18, 2020	Oct. 27, 2020	Oct. 20, 2020	Sep. 30, 2020	Sep. 18, 2020	Jul. 31, 2020	Jul. 17, 2020	Jul. 16, 2020	Mar. 20, 2020	Mar. 04, 2020	Feb. 27, 2020	Feb. 13, 2020	Jun. 30, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Beginning Balance																											$ 1,142,905	$ 905,529
Acquisitions							$ 17,400																				117,419	237,376
Capitalized costs																											872	1,799
Ending Balance																											1,260,324	1,142,905
High Point Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										$ 25,100		25,081
Clinton Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									$ 11,600			11,619
West Allis Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																								$ 9,100				9,357
Grand Rapids Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																							$ 22,700					22,794
Dumfries [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											22,040
Centerville Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																						$ 5,100						5,071
Fairfax Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																					$ 17,900							19,745
Rosedale Facilities [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																				$ 23,100								23,891
Lancaster Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																			$ 6,300									6,305
Winston-Salem Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																		$ 8,500										9,240
Decatur and Jackson Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																	$ 10,900											10,912
Sheboygan and Plymouth Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																$ 13,800												13,824
Spring Hill and Hudson Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions															$ 18,200													18,218
Cape Girardeau Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions														$ 7,400														7,350
Yuma Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions													$ 7,000															6,979
Las Vegas Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions												$ 7,100																7,124
Pensacola Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions											$ 9,100																	9,052
Venice Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions										$ 7,000																		6,975
El Paso Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions									$ 10,000																		10,017
Syracuse Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions								$ 6,200																			6,397
West El Paso Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions								$ 9,600																			9,578
Fort Worth Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											17,444
Port St. Lucie Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions						$ 4,800																					4,787
Cape Coral and Fort Myers Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions					$ 31,700																						31,701
Dallas Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions				$ 6,400																							6,719
East Grand Forks Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions			$ 9,700																								10,278
Coos Bay Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions		$ 6,500																									6,472
Caledonia Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions	$ 3,900																										3,910
Tallahassee Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions	$ 9,200																										9,244
Land [Member]
Property, Plant and Equipment [Line Items]
Beginning Balance																											128,857	95,381
Acquisitions																											16,567	33,476
Ending Balance																											145,424	128,857
Land [Member] | High Point Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												1,749
Land [Member] | Clinton Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												664
Land [Member] | West Allis Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												974
Land [Member] | Grand Rapids Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												2,951
Land [Member] | Dumfries [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											2,597
Land [Member] | Fairfax Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												6,731
Land [Member] | Rosedale Facilities [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												2,856
Land [Member] | Lancaster Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												696
Land [Member] | Winston-Salem Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												1,524
Land [Member] | Decatur and Jackson Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												2,237
Land [Member] | Sheboygan and Plymouth Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												1,088
Land [Member] | Spring Hill and Hudson Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												3,473
Land [Member] | Cape Girardeau Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												1,150
Land [Member] | Yuma Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												1,041
Land [Member] | Las Vegas Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												311
Land [Member] | Pensacola Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												1,786
Land [Member] | Venice Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												1,648
Land [Member] | El Paso Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											899
Land [Member] | Syracuse Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											616
Land [Member] | West El Paso Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											851
Land [Member] | Fort Worth Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											1,817
Land [Member] | Port St. Lucie Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											590
Land [Member] | Cape Coral and Fort Myers Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											5,623
Land [Member] | Dallas Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											3,101
Land [Member] | East Grand Forks Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											845
Land [Member] | Coos Bay Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											861
Land [Member] | Caledonia Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											582
Land [Member] | Tallahassee Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											782
Buildings
Property, Plant and Equipment [Line Items]
Beginning Balance																											851,427	693,533
Acquisitions																											80,083	157,894
Capitalized costs																											546	1,230
Ending Balance																											931,510	851,427
Buildings | High Point Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												20,367
Buildings | Clinton Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												6,551
Buildings | West Allis Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												7,687
Buildings | Grand Rapids Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												17,341
Buildings | Dumfries [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											10,047
Buildings | Centerville Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												4,202
Buildings | Fairfax Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												6,642
Buildings | Rosedale Facilities [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												16,204
Buildings | Lancaster Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												4,269
Buildings | Winston-Salem Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												6,407
Buildings | Decatur and Jackson Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												7,140
Buildings | Sheboygan and Plymouth Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												11,212
Buildings | Spring Hill and Hudson Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												12,520
Buildings | Cape Girardeau Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												4,601
Buildings | Yuma Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												4,715
Buildings | Las Vegas Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												6,813
Buildings | Pensacola Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												5,742
Buildings | Venice Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												4,204
Buildings | El Paso Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											7,549
Buildings | Syracuse Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											4,745
Buildings | West El Paso Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											7,160
Buildings | Fort Worth Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											13,020
Buildings | Port St. Lucie Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											3,583
Buildings | Cape Coral and Fort Myers Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											20,155
Buildings | Dallas Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											2,593
Buildings | East Grand Forks Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											6,248
Buildings | Coos Bay Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											5,095
Buildings | Caledonia Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											2,669
Buildings | Tallahassee Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											6,720
Site Improvements [Member]
Property, Plant and Equipment [Line Items]
Beginning Balance																											15,183	9,912
Acquisitions																											1,828	5,271
Capitalized costs																											192	203
Ending Balance																											17,011	15,183
Site Improvements [Member] | High Point Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												440
Site Improvements [Member] | Clinton Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												342
Site Improvements [Member] | West Allis Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												137
Site Improvements [Member] | Grand Rapids Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												470
Site Improvements [Member] | Dumfries [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											289
Site Improvements [Member] | Centerville Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												160
Site Improvements [Member] | Fairfax Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												381
Site Improvements [Member] | Rosedale Facilities [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												567
Site Improvements [Member] | Lancaster Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												110
Site Improvements [Member] | Winston-Salem Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												254
Site Improvements [Member] | Decatur and Jackson Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												284
Site Improvements [Member] | Sheboygan and Plymouth Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												253
Site Improvements [Member] | Spring Hill and Hudson Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												420
Site Improvements [Member] | Cape Girardeau Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												73
Site Improvements [Member] | Yuma Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												309
Site Improvements [Member] | Pensacola Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												332
Site Improvements [Member] | Venice Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												247
Site Improvements [Member] | El Paso Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											71
Site Improvements [Member] | Syracuse Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											128
Site Improvements [Member] | West El Paso Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											144
Site Improvements [Member] | Fort Worth Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											143
Site Improvements [Member] | Port St. Lucie Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											70
Site Improvements [Member] | Cape Coral and Fort Myers Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											480
Site Improvements [Member] | Dallas Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											63
Site Improvements [Member] | East Grand Forks Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											278
Site Improvements [Member] | Coos Bay Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											56
Site Improvements [Member] | Caledonia Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											66
Site Improvements [Member] | Tallahassee Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											137
Tenant improvements [Member]
Property, Plant and Equipment [Line Items]
Beginning Balance																											49,204	33,909
Acquisitions																											4,526	15,295
Capitalized costs																											134	194
Ending Balance																											53,730	49,204
Tenant improvements [Member] | High Point Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												869
Tenant improvements [Member] | Clinton Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												1,578
Tenant improvements [Member] | West Allis Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												98
Tenant improvements [Member] | Grand Rapids Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												450
Tenant improvements [Member] | Dumfries [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											4,815
Tenant improvements [Member] | Centerville Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												208
Tenant improvements [Member] | Fairfax Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												2,979
Tenant improvements [Member] | Rosedale Facilities [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												1,443
Tenant improvements [Member] | Lancaster Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												116
Tenant improvements [Member] | Winston-Salem Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												307
Tenant improvements [Member] | Decatur and Jackson Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												296
Tenant improvements [Member] | Sheboygan and Plymouth Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												225
Tenant improvements [Member] | Spring Hill and Hudson Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												435
Tenant improvements [Member] | Cape Girardeau Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												264
Tenant improvements [Member] | Yuma Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												274
Tenant improvements [Member] | Pensacola Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												411
Tenant improvements [Member] | Venice Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												333
Tenant improvements [Member] | El Paso Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											160
Tenant improvements [Member] | Syracuse Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											136
Tenant improvements [Member] | West El Paso Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											567
Tenant improvements [Member] | Fort Worth Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											395
Tenant improvements [Member] | Port St. Lucie Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											185
Tenant improvements [Member] | Cape Coral and Fort Myers Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											1,132
Tenant improvements [Member] | Dallas Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											469
Tenant improvements [Member] | East Grand Forks Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											815
Tenant improvements [Member] | Coos Bay Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											50
Tenant improvements [Member] | Caledonia Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											96
Tenant improvements [Member] | Tallahassee Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											387
Intangibles [Member]
Property, Plant and Equipment [Line Items]
Beginning Balance																											98,234	72,794
Acquisitions																											14,415	25,440
Capitalized costs																												172
Ending Balance																											112,649	98,234
Intangibles [Member] | High Point Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												1,656
Intangibles [Member] | Clinton Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												2,484
Intangibles [Member] | West Allis Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												461
Intangibles [Member] | Grand Rapids Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												1,582
Intangibles [Member] | Dumfries [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											4,292
Intangibles [Member] | Centerville Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												501
Intangibles [Member] | Fairfax Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												3,012
Intangibles [Member] | Rosedale Facilities [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												2,821
Intangibles [Member] | Lancaster Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												1,114
Intangibles [Member] | Winston-Salem Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												748
Intangibles [Member] | Decatur and Jackson Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												955
Intangibles [Member] | Sheboygan and Plymouth Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												1,046
Intangibles [Member] | Spring Hill and Hudson Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												1,370
Intangibles [Member] | Cape Girardeau Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												1,262
Intangibles [Member] | Yuma Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												640
Intangibles [Member] | Pensacola Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												781
Intangibles [Member] | Venice Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																												$ 543
Intangibles [Member] | El Paso Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											1,338
Intangibles [Member] | Syracuse Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											772
Intangibles [Member] | West El Paso Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											856
Intangibles [Member] | Fort Worth Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											2,069
Intangibles [Member] | Port St. Lucie Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											359
Intangibles [Member] | Cape Coral and Fort Myers Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											4,311
Intangibles [Member] | Dallas Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											493
Intangibles [Member] | East Grand Forks Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											2,092
Intangibles [Member] | Coos Bay Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											410
Intangibles [Member] | Caledonia Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											497
Intangibles [Member] | Tallahassee Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																											$ 1,218