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Accrued Expenses - Schedule of Accrued Expenses (Detail) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Payables and Accruals [Abstract]    
Accrued research and development $ 30,346 $ 16,979
Employee compensation and benefits 17,923 20,359
Accrued legal and professional expenses 2,976 3,100
Accrued other 7,134 2,871
Total accrued expenses $ 58,379 $ 43,309