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Accrued Expenses - Summary of Accrued expenses (Detail) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Payables and Accruals [Abstract]    
Accrued employee compensation and benefits $ 6,405 $ 7,579
Accrued external research and development expenses 1,000 2,091
Property and equipment 46 869
Accrued professional fees 1,174 962
Other 370 676
Total $ 8,995 $ 12,177