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Prepaid and Other Current Assets | 6 Months Ended
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Jun. 30, 2025
Prepaid Expense and Other Assets, Current [Abstract] |
Prepaid and Other Current Assets | 5. Prepaid and Other Current Assets Prepaid and other current assets consisted of the following as of June 30, 2025 and December 31, 2024 (in thousands):
|  | June 30, |  |  | December 31, |
|  | 2025 |  |  | 2024 |
Down payments for inventory |  | $ | 237 |  |  | $ | 1,080 |
Prepaid research and development |  |  | 15,465 |  |  |  | 7,780 |
Other prepaid expenses |  |  | 13,469 |  |  |  | 9,508 |
Total prepaid assets |  | $ | 29,171 |  |  | $ | 18,368 |
|  | June 30, |  |  | December 31, |
|  | 2025 |  |  | 2024 |
Royalties receivable |  | $ | 5,922 |  |  | $ | 4,525 |
Receivable from collaboration agreement |  |  | 9,174 |  |  |  | 2,272 |
Deposits and other current assets |  |  | 4,746 |  |  |  | 4,847 |
Total other current assets |  | $ | 19,842 |  |  | $ | 11,644 |

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