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Balance Sheet Components - Schedule of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands | Jun. 30, 2026 | Dec. 31, 2025
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Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |
Accrued compensation | $ 13,424 | $ 32,179
Accrued clinical and other research & development costs | 19,871 | 22,283
Accrued manufacturing costs | 10,659 | 5,336
Operating lease liability, current | 10,084 | 9,463
Finance lease liability, current | 97 | 83
Deferred research and development funding liability, current | 19,975 | 21,101
Other accrued costs and current liabilities | 4,166 | 7,401
Total accrued expenses and other current liabilities | $ 78,276 | $ 97,846

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