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Summary of Maturities of Lease Liabilities (Detail) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Leases [Abstract]    
2021 $ 1,702  
2022 1,527  
2023 1,426  
2024 1,630  
2025 1,642  
Thereafter 5,379  
Lease payments due 13,306  
Less: Imputed interest (2,998)  
Total lease cost $ 10,308 $ 4,171