Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Additional Information (Detail)

v3.20.2
Commitments and Contingencies - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Commitments And Contingencies Disclosure [Abstract]        
Rent expense $ 748 $ 755 $ 2,265 $ 2,235