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Accrued Expenses - Schedule of Accrued Expenses (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
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Accrued Liabilities, Current [Abstract] |  |
Research and development expenses | $ 14,555 | $ 17,801
Payroll and payroll-related | 11,722 | 14,028
Professional fees | 2,095 | 2,682
Other | 267 | 356
Accrued expenses | $ 28,639 | $ 34,867

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