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Commitments and Contingencies - Summary of Balance Sheet Classification of Operating Lease Liabilities (Detail) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Commitments And Contingencies Disclosure [Abstract]    
Current portion of lease liabilities (included in other current liabilities) $ 3,247 $ 3,039
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] us-gaap:OtherCurrentLiabilitiesMember us-gaap:OtherCurrentLiabilitiesMember
Long-term portion of lease liabilities $ 34,789 $ 37,845
Total operating lease liabilities $ 38,036 $ 40,884