v3.19.3.a.u2
Mortgages and Notes Payable - Summary of Cost Extinguished Mortgages (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Secured Debt      
Debt Instrument [Line Items]      
Cost of mortgage extinguishment $ 842 $ 101 $ 1,596