v3.21.2
Summary of Significant Accounting Policies - Summary of Components of Restricted Cash (Detail) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Sep. 30, 2020
Dec. 31, 2019
Cash and Cash Equivalents [Abstract]        
Escrow funds and other $ 3,895 $ 7,852    
Undistributed 1031 proceeds   2,390    
Restricted cash $ 3,895 $ 10,242 $ 7,200 $ 7,856