Quarterly report pursuant to Section 13 or 15(d)

Investment in Storage Facilities and Intangible Assets - Schedule of Purchase Price of Facilities Acquired (Detail)

v3.20.2
Investment in Storage Facilities and Intangible Assets - Schedule of Purchase Price of Facilities Acquired (Detail)
$ in Thousands
 3 Months Ended 6 Months Ended
Mar. 31, 2020
Property
Jun. 30, 2020
USD ($)
Property
Investment Holdings [Line Items]    
Number of Properties | Property 6 6
Purchase Price   $ 124,298
Consideration paid, Cash Paid   124,204
Consideration paid, Net Other Liabilities (Assets) Assumed   94
Acquisition Date Fair Value, In-Place Customer Leases   1,675
Land [Member]    
Investment Holdings [Line Items]    
Acquisition Date Fair Value, Fixed Assets   20,307
Building, Equipment and Improvements [Member]    
Investment Holdings [Line Items]    
Acquisition Date Fair Value, Fixed Assets   101,734
Construction in Progress [Member]    
Investment Holdings [Line Items]    
Acquisition Date Fair Value, Fixed Assets   $ 582
CA [Member] | Asset Acquired on 3/9/2020 [Member]    
Investment Holdings [Line Items]    
Number of Properties | Property   6
Date of Acquisition   Mar. 09, 2020
Purchase Price   $ 124,298
Consideration paid, Cash Paid   124,204
Consideration paid, Net Other Liabilities (Assets) Assumed   94
Acquisition Date Fair Value, In-Place Customer Leases   1,675
CA [Member] | Asset Acquired on 3/9/2020 [Member] | Land [Member]    
Investment Holdings [Line Items]    
Acquisition Date Fair Value, Fixed Assets   20,307
CA [Member] | Asset Acquired on 3/9/2020 [Member] | Building, Equipment and Improvements [Member]    
Investment Holdings [Line Items]    
Acquisition Date Fair Value, Fixed Assets   101,734
CA [Member] | Asset Acquired on 3/9/2020 [Member] | Construction in Progress [Member]    
Investment Holdings [Line Items]    
Acquisition Date Fair Value, Fixed Assets   $ 582