Quarterly report pursuant to Section 13 or 15(d)

Mortgage Notes Payable and Credit Facility - Additional Information (Detail)

v3.20.2
Mortgage Notes Payable and Credit Facility - Additional Information (Detail)
3 Months Ended 9 Months Ended
Jul. 02, 2019
USD ($)
Sep. 30, 2020
USD ($)
property
mortgage
Sep. 30, 2019
USD ($)
Sep. 30, 2020
USD ($)
property
mortgage
Sep. 30, 2019
USD ($)
Dec. 31, 2019
USD ($)
Jul. 01, 2019
USD ($)
Debt Instrument [Line Items]              
Number of properties collateralized in mortgage notes payable | property   120   120      
Payments of deferred financing costs       $ 422,000 $ 2,075,000    
Carrying value   $ 660,659,000   660,659,000   $ 626,594,000  
Line of credit outstanding   $ 43,149,000   $ 43,149,000   51,579,000  
Weighted average interest rate on debt outstanding (as percent)   4.28%   4.28%      
Term loan facility              
Debt Instrument [Line Items]              
Maximum borrowing capacity $ 160,000,000.0           $ 75,000,000.0
Revolving credit facility              
Debt Instrument [Line Items]              
Maximum borrowing capacity $ 100,000,000.0           $ 85,000,000.0
Line of credit              
Debt Instrument [Line Items]              
Extension fee on initial maturity (as percent) 0.10%            
Line of credit outstanding   $ 203,800,000   $ 203,800,000      
Weighted average interest rate (as percent)   1.76%   1.76%      
Letters of credit, outstanding   $ 13,700,000   $ 13,700,000      
Maximum additional amount that can be drawn under Line of Credit   $ 27,800,000   $ 27,800,000      
Line of credit | Term loan facility              
Debt Instrument [Line Items]              
Term of debt 5 years            
Line of credit | Revolving credit facility              
Debt Instrument [Line Items]              
Term of debt 4 years            
Debt instrument fees incurred $ 1,300,000            
Letter of credit              
Debt Instrument [Line Items]              
Weighted average interest rate on debt outstanding (as percent)   1.65%   1.65%      
Mortgage notes payable              
Debt Instrument [Line Items]              
Number of mortgage notes payable | mortgage   54   54      
Number of properties collateralized in mortgage notes payable | property   69   69      
Net book value of collateralized mortgage properties   $ 680,900,000   $ 680,900,000      
Recourse amount of mortgage notes payable   800,000   $ 800,000      
Percentage of debt recourse (as percent)       0.20%      
Fair value of mortgage notes payable   473,400,000   $ 473,400,000      
Carrying value   $ 458,364,000   $ 458,364,000   $ 453,739,000  
Weighted average interest rate on debt outstanding (as percent)   3.51%   3.51%      
Fixed rate mortgage loans              
Debt Instrument [Line Items]              
Number of properties collateralized in mortgage notes payable | property   61   61      
Payments of deferred financing costs   $ 30,000.00 $ 1,400,000 $ 400,000 $ 2,100,000    
Minimum | LIBOR | Term loan facility              
Debt Instrument [Line Items]              
Spread on LIBOR (as percent) 2.50%            
Maximum | LIBOR | Term loan facility              
Debt Instrument [Line Items]              
Spread on LIBOR (as percent) 2.75%