Annual report pursuant to Section 13 and 15(d)

Subsequent Events - Additional Information (Detail)

v3.10.0.1
Subsequent Events - Additional Information (Detail)
$ / shares in Units, $ in Millions
Feb. 26, 2019
USD ($)
Property
Jan. 28, 2019
USD ($)
Jan. 03, 2019
$ / shares
Jan. 16, 2018
USD ($)
Review Avenue Partners LLC [Member]        
Subsequent Event [Line Items]        
Ownership interest       60.00%
Payments to acquire business       $ 46.4
Subsequent Event [Member]        
Subsequent Event [Line Items]        
Dividend declared, date     Jan. 03, 2019  
Dividend per common share | $ / shares     $ 1.00  
Dividend paid, date     Jan. 28, 2019  
Dividend record, date     Jan. 15, 2019  
Dividend paid   $ 46.6    
Number of storage facilities to be acquired | Property 16      
Aggregate purchase price of business to be acquired $ 177.7