Quarterly report pursuant to Section 13 or 15(d)

Mortgage Notes Payable and Credit Facility - Interest Rate Cap Agreement (Detail)

v3.10.0.1
Mortgage Notes Payable and Credit Facility - Interest Rate Cap Agreement (Detail) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2018
Dec. 31, 2017
Debt Instrument [Line Items]    
Aggregate cost $ 1,111  
Notional amount 135,185 $ 143,512
Fair value $ 1,245 504
Minimum | LIBOR    
Debt Instrument [Line Items]    
Interest rate (as percent) 2.25%  
Maximum | LIBOR    
Debt Instrument [Line Items]    
Interest rate (as percent) 3.25%  
Interest rate swaps | Counterparty    
Debt Instrument [Line Items]    
Notional amount $ 24,867 11,036
Fair value $ 768 $ 316