Quarterly report pursuant to Section 13 or 15(d)

Real Estate Dispositions, Held for Sale and Impairment Charges - Additional Information (Detail)

v3.20.2
Real Estate Dispositions, Held for Sale and Impairment Charges - Additional Information (Detail)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
USD ($)
property
Jun. 30, 2020
USD ($)
Sep. 30, 2019
USD ($)
Sep. 30, 2020
USD ($)
property
Sep. 30, 2019
USD ($)
Dec. 31, 2019
property
Real Estate Properties [Line Items]            
Number of real estate properties, held for sale 5     5    
Number of real estate properties, held and used 3     3    
Impairment charge | $ $ 1,184   $ 0 $ 2,905 $ 0  
Boston Heights, Ohio            
Real Estate Properties [Line Items]            
Number of real estate properties, held for sale 1     1    
Champaign, Illinois            
Real Estate Properties [Line Items]            
Number of real estate properties, held for sale 3     3    
Impairment charge | $ $ 1,000          
Austin, Texas            
Real Estate Properties [Line Items]            
Number of real estate properties, held for sale 1     1    
Charlotte, North Carolina            
Real Estate Properties [Line Items]            
Number of real estate properties, held for sale           1
Blaine, Minnesota            
Real Estate Properties [Line Items]            
Impairment charge | $   $ 1,700        
Rancho Cordova, California            
Real Estate Properties [Line Items]            
Impairment charge | $ $ 200