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Accrued Expenses - Schedule of Accrued Expenses (Detail) - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Payables and Accruals [Abstract]    
Accrued external research and development $ 9,423 $ 6,996
Accrued compensation 3,806 5,154
Accrued professional fees 173 271
Other accrued expenses 597 653
Accrued expenses $ 13,999 $ 13,074