Quarterly report pursuant to Section 13 or 15(d)

Commitment and Contingencies - Additional Information (Detail)

v3.19.1
Commitment and Contingencies - Additional Information (Detail)
$ in Thousands
3 Months Ended
Apr. 30, 2019
USD ($)
Property
Mar. 31, 2019
USD ($)
Property
Facility
Commitment And Contingencies [Line Items]    
Number of storage facilities to be acquired | Property   16
Aggregate purchase price of business to be acquired   $ 177,700
Number of storage facilities acquired | Property   2
Cash payments for property acquisition   $ 55,132
Number of remaining facilities to be purchased | Facility   13
Expansion and enhancement contracts   $ 31,200
Subsequent Event [Member]    
Commitment And Contingencies [Line Items]    
Number of storage facilities acquired | Property 3  
Cash payments for property acquisition $ 33,000