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Leases - Summary of Maturities of Operating Lease Liabilities on an Undiscounted Basis (Detail)
$ in Thousands
Sep. 30, 2021
USD ($)
Leases [Abstract]  
2022 $ 4,708
2023 4,786
2024 4,621
2025 4,749
2026 5,050
2027 and thereafter 13,200
Total 37,114
Less imputed interest (11,569)
Total operating lease liabilities (includes current portion) $ 25,545