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Leases - Summary of Maturity of Undiscounted Payments Due under Lease Liabilities and Present Value of Those Liabilities (Detail) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Leases [Abstract]    
2021 $ 17,020  
2022 13,815  
2023 12,650  
2024 10,761  
2025 10,265  
Thereafter 37,206  
Total 101,717  
Present value adjustment (40,288)  
Present value of lease liabilities $ 61,429 $ 52,539