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Balance Sheet Components - Schedule of Prepaid and Other Current Assets (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Prepaid Expense and Other Assets, Current [Abstract] |  |
Prepaid research and development | $ 26,148 | $ 11,579
Prepaid taxes | 388 | 614
Prepaid other | 2,528 | 2,471
Common stock warrant exercise receivable | 19,406 |
Total prepaid and other current assets | $ 48,470 | $ 14,664

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