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Commitments and Contingencies - Supplemental Cash Flow Information Related to Operating Leases (Detail)
$ in Thousands
12 Months Ended
Dec. 31, 2020
USD ($)
Commitments And Contingencies Disclosure [Abstract]  
Cash payments for operating leases $ 3,400
Right-of-use assets obtained in exchange for operating lease obligations $ 344
Weighted-average remaining lease term 8 years 6 months
Weighted-average discount rate 9.00%