v3.20.2
Mortgages and Notes Payable - Summary of Cost Extinguished Mortgages (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Secured Debt      
Debt Instrument [Line Items]      
Cost of mortgage extinguishment $ 8 $ 22 $ 506