Quarterly report pursuant to Section 13 or 15(d)

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

v3.22.1
Investment in Storage Facilities and Intangible Assets - Schedule of Purchase Price of Facilities Acquired (Detail)
$ in Thousands
3 Months Ended
Mar. 31, 2022
USD ($)
Property
Mar. 31, 2021
Property
Investment Holdings [Line Items]    
Number of Properties | Property 18 16
Purchase Price $ 351,510  
Consideration paid, Cash Paid 350,662  
Consideration paid, Net Other Liabilities (Assets) Assumed 848  
Land [Member]    
Investment Holdings [Line Items]    
Acquisition Date Fair Value, Fixed Assets 38,179  
Acquisition Date Fair Value, In-Place Customer Leases 3,493  
Building, Equipment and Improvements [Member]    
Investment Holdings [Line Items]    
Acquisition Date Fair Value, In-Place Customer Leases $ 309,838  
CA [Member] | Asset Acquired on 1/4/2022 [Member]    
Investment Holdings [Line Items]    
Number of Properties | Property 6  
Date of Acquisition Jan. 04, 2022  
Purchase Price $ 165,225  
Consideration paid, Cash Paid 165,160  
Consideration paid, Net Other Liabilities (Assets) Assumed 65  
Acquisition Date Fair Value, Fixed Assets 20,321  
CA [Member] | Asset Acquired on 1/4/2022 [Member] | Land [Member]    
Investment Holdings [Line Items]    
Acquisition Date Fair Value, In-Place Customer Leases 143,243  
CA [Member] | Asset Acquired on 1/4/2022 [Member] | Building, Equipment and Improvements [Member]    
Investment Holdings [Line Items]    
Acquisition Date Fair Value, In-Place Customer Leases $ 1,661  
GA, NC, SC [Member] | Asset Acquired on 3/11/2022 [Member]    
Investment Holdings [Line Items]    
Number of Properties | Property 3  
Date of Acquisition Mar. 11, 2022  
Purchase Price $ 48,586  
Consideration paid, Cash Paid 48,446  
Consideration paid, Net Other Liabilities (Assets) Assumed 140  
Acquisition Date Fair Value, Fixed Assets 3,926  
GA, NC, SC [Member] | Asset Acquired on 3/11/2022 [Member] | Land [Member]    
Investment Holdings [Line Items]    
Acquisition Date Fair Value, In-Place Customer Leases 44,300  
GA, NC, SC [Member] | Asset Acquired on 3/11/2022 [Member] | Building, Equipment and Improvements [Member]    
Investment Holdings [Line Items]    
Acquisition Date Fair Value, In-Place Customer Leases $ 360  
IL, NC, TX [Member] | Asset Acquired on 3/15/2022 [Member]    
Investment Holdings [Line Items]    
Number of Properties | Property 8  
Date of Acquisition Mar. 15, 2022  
Purchase Price $ 116,048  
Consideration paid, Cash Paid 115,410  
Consideration paid, Net Other Liabilities (Assets) Assumed 638  
Acquisition Date Fair Value, Fixed Assets 12,292  
IL, NC, TX [Member] | Asset Acquired on 3/15/2022 [Member] | Land [Member]    
Investment Holdings [Line Items]    
Acquisition Date Fair Value, In-Place Customer Leases 102,439  
IL, NC, TX [Member] | Asset Acquired on 3/15/2022 [Member] | Building, Equipment and Improvements [Member]    
Investment Holdings [Line Items]    
Acquisition Date Fair Value, In-Place Customer Leases $ 1,317  
MD [Member] | Asset Acquired on 3/28/2022 [Member]    
Investment Holdings [Line Items]    
Number of Properties | Property 1  
Date of Acquisition Mar. 28, 2022  
Purchase Price $ 21,651  
Consideration paid, Cash Paid 21,646  
Consideration paid, Net Other Liabilities (Assets) Assumed 5  
Acquisition Date Fair Value, Fixed Assets 1,640  
MD [Member] | Asset Acquired on 3/28/2022 [Member] | Land [Member]    
Investment Holdings [Line Items]    
Acquisition Date Fair Value, In-Place Customer Leases 19,856  
MD [Member] | Asset Acquired on 3/28/2022 [Member] | Building, Equipment and Improvements [Member]    
Investment Holdings [Line Items]    
Acquisition Date Fair Value, In-Place Customer Leases $ 155