Property Portfolio - Gross Investment (Details)

v3.20.1

Property Portfolio - Gross Investment (Details) - USD ($) $ in Thousands																								1 Months Ended	12 Months Ended
	Dec. 17, 2019	Nov. 15, 2019	Oct. 31, 2019	Oct. 25, 2019	Oct. 01, 2019	Sep. 26, 2019	Aug. 23, 2019	Aug. 14, 2019	Aug. 06, 2019	Aug. 05, 2019	Aug. 01, 2019	Jul. 12, 2019	Nov. 30, 2018	Nov. 16, 2018	Nov. 16, 2018	Oct. 30, 2018	Oct. 12, 2018	Oct. 12, 2018	Aug. 03, 2018	Aug. 03, 2018	Jul. 03, 2018	Mar. 01, 2018	Feb. 23, 2018	Dec. 19, 2018	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Beginning Balance																									$ 647,550	$ 471,507
Acquisitions																									257,979	200,680
ASC Topic 842 Reclassification																									(824)
Capitalized costs																									1,860
Disposition of Great Bend																										(24,637)
Ending Balance																									905,529	647,550
Zachary [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									4,683
Gilbert and Chandler [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									16,259
Las Vegas [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									22,502
Oklahoma Northwest [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									28,207
Mishawaka [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									16,103
Surprise [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									28,682
San Marcos [Member]
Property, Plant and Equipment [Line Items]
Acquisitions												$ 12,000													11,974
Lansing [Member]
Property, Plant and Equipment [Line Items]
Acquisitions											$ 11,100														11,368
Bannockburn [Member]
Property, Plant and Equipment [Line Items]
Acquisitions										$ 6,800															6,977
Aurora [Member]
Property, Plant and Equipment [Line Items]
Acquisitions									$ 12,600																12,557
Livonia [Member]
Property, Plant and Equipment [Line Items]
Acquisitions								$ 10,400																	10,592
Gilbert [Member]
Property, Plant and Equipment [Line Items]
Acquisitions							$ 5,600																		5,592
Morgantown [Member]
Property, Plant and Equipment [Line Items]
Acquisitions						$ 8,000																			7,950
Beaumont [Member]
Property, Plant and Equipment [Line Items]
Acquisitions					$ 33,700																				33,739
Bastrop [Member]
Property, Plant and Equipment [Line Items]
Acquisitions				$ 12,100																					12,065
Panama City [Member]
Property, Plant and Equipment [Line Items]
Acquisitions			$ 13,000																						12,976
Jacksonville [Member]
Property, Plant and Equipment [Line Items]
Acquisitions		$ 8,900																							8,869
Greenwood [Member]
Property, Plant and Equipment [Line Items]
Acquisitions	$ 5,800																								5,848
Moline / Silvis Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										7,100
Tenant improvements																										2,568
Freemont Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										8,497
Gainesville Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																							$ 10,500			10,510
Dallas Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																						$ 23,300				23,284
Orlando Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										16,414
Belpre Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										64,683
McAllen [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																					$ 5,400
Derby [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																			$ 3,600	$ 3,600						3,604
Bountiful Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																	$ 4,900	$ 4,900								4,905
Cincinnati Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																$ 4,000										4,126
Melbourne Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions														$ 7,700	$ 7,700											7,719
Southern IL Facilities [Member]
Property, Plant and Equipment [Line Items]
Acquisitions													$ 14,500													14,490
Vernon Facilities [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																								$ 10,900		11,095
Corona Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										16,290
Land [Member]
Property, Plant and Equipment [Line Items]
Beginning Balance																									63,710	42,701
Acquisitions																									31,671	21,845
Disposition of Great Bend																										(836)
Ending Balance																									95,381	63,710
Land [Member] | Gilbert and Chandler [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									4,616
Land [Member] | Las Vegas [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									2,479
Land [Member] | Oklahoma Northwest [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									2,364
Land [Member] | Mishawaka [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									1,924
Land [Member] | Surprise [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									1,738
Land [Member] | San Marcos [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									2,322
Land [Member] | Lansing [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									1,202
Land [Member] | Bannockburn [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									763
Land [Member] | Aurora [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									1,521
Land [Member] | Livonia [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									980
Land [Member] | Gilbert [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									2,408
Land [Member] | Morgantown [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									883
Land [Member] | Beaumont [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									3,022
Land [Member] | Bastrop [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									1,975
Land [Member] | Panama City [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									1,559
Land [Member] | Jacksonville [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									1,023
Land [Member] | Greenwood [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									892
Land [Member] | Freemont Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										162
Land [Member] | Gainesville Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										625
Land [Member] | Dallas Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										6,272
Land [Member] | Orlando Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										2,543
Land [Member] | Belpre Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										3,025
Land [Member] | McAllen [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										1,099
Land [Member] | Derby [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										412
Land [Member] | Bountiful Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										720
Land [Member] | Cincinnati Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										1,745
Land [Member] | Melbourne Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										645
Land [Member] | Southern IL Facilities [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										1,830
Land [Member] | Vernon Facilities [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										1,166
Land [Member] | Corona Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										1,601
Building [Member]
Property, Plant and Equipment [Line Items]
Beginning Balance																									518,451	384,338
Acquisitions																									175,082	157,914
Capitalized costs																									1,179
Disposition of Great Bend																										(23,801)
Ending Balance																									693,533	518,451
Building [Member] | Zachary [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									3,336
Building [Member] | Gilbert and Chandler [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									11,643
Building [Member] | Las Vegas [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									15,277
Building [Member] | Oklahoma Northwest [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									19,501
Building [Member] | Mishawaka [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									10,084
Building [Member] | Surprise [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									18,737
Building [Member] | San Marcos [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									6,934
Building [Member] | Lansing [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									7,681
Building [Member] | Bannockburn [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									3,566
Building [Member] | Aurora [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									7,446
Building [Member] | Livonia [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									7,629
Building [Member] | Gilbert [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									2,027
Building [Member] | Morgantown [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									5,286
Building [Member] | Beaumont [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									24,836
Building [Member] | Bastrop [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									8,436
Building [Member] | Panama City [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									8,682
Building [Member] | Jacksonville [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									7,846
Building [Member] | Greenwood [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									4,956
Building [Member] | Moline / Silvis Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										4,895
Building [Member] | Freemont Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										8,335
Building [Member] | Gainesville Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										9,885
Building [Member] | Dallas Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										17,012
Building [Member] | Orlando Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										11,720
Building [Member] | Belpre Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										50,526
Building [Member] | McAllen [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										4,296
Building [Member] | Derby [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										2,496
Building [Member] | Bountiful Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										4,185
Building [Member] | Cincinnati Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										1,336
Building [Member] | Melbourne Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										5,950
Building [Member] | Southern IL Facilities [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										12,660
Building [Member] | Vernon Facilities [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										9,929
Building [Member] | Corona Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										14,689
Site Improvements [Member]
Property, Plant and Equipment [Line Items]
Beginning Balance																									6,880	4,808
Acquisitions																									3,032	2,072
Capitalized costs																									170
Ending Balance																									9,912	6,880
Site Improvements [Member] | Zachary [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									103
Site Improvements [Member] | Las Vegas [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									244
Site Improvements [Member] | Oklahoma Northwest [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									143
Site Improvements [Member] | Mishawaka [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									74
Site Improvements [Member] | Surprise [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									228
Site Improvements [Member] | San Marcos [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									126
Site Improvements [Member] | Lansing [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									185
Site Improvements [Member] | Bannockburn [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									132
Site Improvements [Member] | Aurora [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									308
Site Improvements [Member] | Livonia [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									201
Site Improvements [Member] | Gilbert [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									62
Site Improvements [Member] | Morgantown [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									373
Site Improvements [Member] | Beaumont [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									399
Site Improvements [Member] | Bastrop [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									64
Site Improvements [Member] | Panama City [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									220
Site Improvements [Member] | Moline / Silvis Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										249
Site Improvements [Member] | Orlando Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										532
Site Improvements [Member] | Belpre Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										972
Site Improvements [Member] | Derby [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										154
Site Improvements [Member] | Cincinnati Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										79
Site Improvements [Member] | Melbourne Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										86
Tenant improvements [Member]
Property, Plant and Equipment [Line Items]
Beginning Balance																									15,357	8,010
Acquisitions																									18,552	7,347
Capitalized costs																									511
Ending Balance																									33,909	15,357
Tenant improvements [Member] | Zachary [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									409
Tenant improvements [Member] | Las Vegas [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									2,205
Tenant improvements [Member] | Oklahoma Northwest [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									3,044
Tenant improvements [Member] | Mishawaka [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									1,798
Tenant improvements [Member] | Surprise [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									4,119
Tenant improvements [Member] | San Marcos [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									404
Tenant improvements [Member] | Lansing [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									667
Tenant improvements [Member] | Bannockburn [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									1,134
Tenant improvements [Member] | Aurora [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									603
Tenant improvements [Member] | Livonia [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									442
Tenant improvements [Member] | Gilbert [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									362
Tenant improvements [Member] | Morgantown [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									506
Tenant improvements [Member] | Beaumont [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									1,036
Tenant improvements [Member] | Bastrop [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									276
Tenant improvements [Member] | Panama City [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									1,036
Tenant improvements [Member] | Moline / Silvis Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										967
Tenant improvements																										2,568
Tenant improvements [Member] | Orlando Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										224
Tenant improvements [Member] | Belpre Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										2,994
Tenant improvements [Member] | Derby [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										89
Tenant improvements [Member] | Cincinnati Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										474
Tenant improvements [Member] | Melbourne Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										31
Building And Tenant Improvements [Member] | McAllen [Member]
Property, Plant and Equipment [Line Items]
Acquisitions
Intangibles [Member]
Property, Plant and Equipment [Line Items]
Beginning Balance																									43,152	31,650
Acquisitions																									29,642	11,502
ASC Topic 842 Reclassification																									(824)
Ending Balance																									72,794	43,152
Intangibles [Member] | Zachary [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									835
Intangibles [Member] | Las Vegas [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									2,297
Intangibles [Member] | Oklahoma Northwest [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									3,155
Intangibles [Member] | Mishawaka [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									2,223
Intangibles [Member] | Surprise [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									3,860
Intangibles [Member] | San Marcos [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									2,188
Intangibles [Member] | Lansing [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									1,633
Intangibles [Member] | Bannockburn [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									1,382
Intangibles [Member] | Aurora [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									2,679
Intangibles [Member] | Livonia [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									1,340
Intangibles [Member] | Gilbert [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									733
Intangibles [Member] | Morgantown [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									902
Intangibles [Member] | Beaumont [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									4,446
Intangibles [Member] | Bastrop [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									1,314
Intangibles [Member] | Panama City [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																									$ 1,479
Intangibles [Member] | Moline / Silvis Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										989
Intangibles [Member] | Orlando Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										1,395
Intangibles [Member] | Belpre Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										7,166
Intangibles [Member] | McAllen [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										5,395
Intangibles [Member] | Derby [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										453
Intangibles [Member] | Cincinnati Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										492
Intangibles [Member] | Melbourne Facility [Member]
Property, Plant and Equipment [Line Items]
Acquisitions																										$ 1,007