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Related Party Transactions - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Related Party Transactions |  |  |  |  |
Accounts payable | $ 6,260 |  | $ 6,260 |  | $ 4,176
Accrued expenses | 40,272 |  | 40,272 |  | 35,117
Prepaid expenses and other current assets | 7,952 |  | 7,952 |  | 13,457
BIRC | Chief Medical Officer |  |  |  |  |
Related Party Transactions |  |  |  |  |
Expenses incurred | 23 | $ 8 | 48 | $ 51 |
Accounts payable | 20 |  | 20 |  | 0
Accrued expenses | 3 |  | 3 |  | 5
i2 Vision Inc | Related Party |  |  |  |  |
Related Party Transactions |  |  |  |  |
Expenses incurred | 0 | 623 | (121) | 1,961 |
Accounts payable | 0 |  | 0 |  | 132
Accrued expenses | 0 |  | 0 |  | 383
Pass-through costs |  | 313 |  | 349 |
Prepaid expenses and other current assets | $ 0 |  | $ 0 |  | $ 176
WilmerHale | Chief Business Officer |  |  |  |  |
Related Party Transactions |  |  |  |  |
Expenses incurred |  | 0 |  | 1,080 |
Heier Consulting LLC | Related Party |  |  |  |  |
Related Party Transactions |  |  |  |  |
Expenses incurred |  | $ 0 |  | $ 5 |
Total grant date fair value of stock-based awards granted |  |  | $ 96 |  |

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