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Leases - Summary of Balance Sheet Classification of Lease Liabilities (Detail) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Leases [Abstract]    
Current portion of lease liabilities $ 7,521 $ 5,087
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] Accrued liabilities Accrued liabilities
Operating lease liabilities $ 59,134 $ 44,460
Total operating lease liabilities $ 66,655 $ 49,547