Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Summary of Future Minimum Lease Payments and Rentals under Lease Agreements For Office Space (Detail)

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Commitments and Contingencies - Summary of Future Minimum Lease Payments and Rentals under Lease Agreements For Office Space (Detail) - USD ($)
$ in Thousands
Mar. 31, 2022
Sep. 30, 2021
Commitments And Contingencies Disclosure [Abstract]    
Operating Leases, Remainder of 2022 $ 4,805  
Operating Leases, 2023 6,068  
Operating Leases, 2024 6,150  
Operating Leases, 2025 6,078  
Operating Leases, 2026 5,999  
Operating Leases, Thereafter 10,368  
Operating Leases, Total   $ 39,468
Non-cancellable Subleases, Remainder of 2022 (155)  
Non-cancellable Subleases, 2023 (6)  
Non-cancellable Subleases, Total (161)  
Operating Lease Liabilities, Remainder of 2022 4,650  
Operating Lease Liabilities, 2023 6,062  
Operating Lease Liabilities, 2024 6,150  
Operating Lease Liabilities, 2025 6,078  
Operating Lease Liabilities, 2026 5,999  
Operating Lease Liabilities, Thereafter 10,368  
Operating Lease Liabilities, Total $ 39,307  
Weighted-average remaining lease term – operating leases (months) 74 months 15 days  
Weighted-average discount rate 4.20%