Quarterly report pursuant to Section 13 or 15(d)

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

v3.10.0.1
Mortgage Notes Payable and Credit Facility - Company's Mortgage Notes Payable and Line of Credit Additional Information (Detail)
 6 Months Ended
Oct. 27, 2017
Jun. 30, 2018
mortgage
property
Debt Instrument [Line Items]    
Weighted average interest rate on debt outstanding (as percent)   4.63%
Encumbered properties   98
Revolving credit facility    
Debt Instrument [Line Items]    
Encumbered properties   32
LIBOR    
Debt Instrument [Line Items]    
Spread on LIBOR (as percent) 2.75%  
Variable rate at period end (as percent)   2.09%
Fixed rate mortgage loans    
Debt Instrument [Line Items]    
Stated interest rate (as percent)   5.75%
Maturity date of mortgage notes payable, start date   Sep. 30, 2018
Maturity date of mortgage notes payable, end date   Jul. 01, 2045
Encumbered properties   48
Fixed rate mortgage loans | Minimum    
Debt Instrument [Line Items]    
Stated interest rate (as percent)   3.545%
Fixed rate mortgage loans | Maximum    
Debt Instrument [Line Items]    
Stated interest rate (as percent)   6.63%
Mortgage notes payable    
Debt Instrument [Line Items]    
Number of mortgage notes payable | mortgage   45
Weighted average interest rate on debt outstanding (as percent)   4.46%
Encumbered properties   66
Variable rate mortgage loans    
Debt Instrument [Line Items]    
Encumbered properties   18
Variable rate mortgage loans | LIBOR    
Debt Instrument [Line Items]    
Spread on LIBOR (as percent)   2.25%
Variable rate mortgage loans | Maximum | LIBOR    
Debt Instrument [Line Items]    
Spread on LIBOR (as percent)   2.75%
Variable rate revolving credit facility | Revolving credit facility    
Debt Instrument [Line Items]    
Encumbered properties   32
Variable rate revolving credit facility | LIBOR | Revolving credit facility    
Debt Instrument [Line Items]    
Spread on LIBOR (as percent)   1.75%