Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events - Additional Information (Detail)

v3.19.1
Subsequent Events - Additional Information (Detail)
$ / shares in Units, $ in Thousands
3 Months Ended
Apr. 30, 2019
USD ($)
Property
Apr. 26, 2019
USD ($)
Apr. 02, 2019
$ / shares
Mar. 31, 2019
USD ($)
Property
Subsequent Event [Line Items]        
Number of storage facilities acquired | Property       2
Cash payments for property acquisition       $ 55,132
Subsequent Event [Member]        
Subsequent Event [Line Items]        
Number of storage facilities acquired | Property 3      
Cash payments for property acquisition $ 33,000      
Dividend declared, date     Apr. 02, 2019  
Dividend per common share | $ / shares     $ 1.00  
Dividend paid, date     Apr. 26, 2019  
Dividend record, date     Apr. 16, 2019  
Dividend paid   $ 46,600