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Accrued Expenses (Details) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Payables and Accruals [Abstract]    
Accrued compensation $ 14,022 $ 18,105
Accrued research and development costs 12,528 8,425
Accrued professional fees 1,369 2,435
Accrued other 2,571 1,385
Total accrued expenses $ 30,490 $ 30,350