Quarterly report pursuant to Section 13 or 15(d)

Mortgage Notes Payable and Credit Facility - Company's Mortgage Notes Payable and Line of Credit (Detail)

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Mortgage Notes Payable and Credit Facility - Company's Mortgage Notes Payable and Line of Credit (Detail)
$ in Thousands
9 Months Ended
Sep. 30, 2017
USD ($)
property
Dec. 31, 2016
USD ($)
Debt Instrument [Line Items]    
Encumbered properties | property 91  
Total $ 518,877 $ 509,395
Revolving credit facility    
Debt Instrument [Line Items]    
Encumbered properties | property 24  
Total $ 43,933 39,225
Fixed rate mortgage loans    
Debt Instrument [Line Items]    
Encumbered properties | property 48  
Carrying value $ 385,555 378,477
Variable rate mortgage loans    
Debt Instrument [Line Items]    
Encumbered properties | property 19  
Carrying value $ 69,835 71,707
Variable rate mortgage loans | LIBOR    
Debt Instrument [Line Items]    
Spread on LIBOR (as percent) 2.15%  
Total mortgage notes payable, net    
Debt Instrument [Line Items]    
Encumbered properties | property 67  
Carrying value $ 455,390  
Premiums and discounts (net) (262) 217
Deferred financing costs, net (5,096) (5,123)
Total $ 450,032 445,278
Variable rate revolving credit facility | Revolving credit facility    
Debt Instrument [Line Items]    
Encumbered properties | property 24  
Carrying value $ 44,200 39,700
Deferred financing costs, net $ (267) (475)
Scheduled maturity dates Aug. 07, 2018  
Variable rate revolving credit facility | Revolving credit facility | LIBOR    
Debt Instrument [Line Items]    
Spread on LIBOR (as percent) 2.00%  
Variable rate term loan facility    
Debt Instrument [Line Items]    
Carrying value $ 25,000 25,000
Scheduled maturity dates Oct. 05, 2020  
Variable rate term loan facility | LIBOR    
Debt Instrument [Line Items]    
Spread on LIBOR (as percent) 1.95%  
Total term loan, net    
Debt Instrument [Line Items]    
Deferred financing costs, net $ (88) (108)
Total $ 24,912 $ 24,892