License and Other Agreements - Broad License Agreement - Change in Fair Value of Success Payment Liability (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] | ||||
| Change in fair value of derivative liabilities | $ 4,200 | $ (1,300) | $ 1,700 | $ (4,500) |
| Broad Institute | ||||
| Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] | ||||
| Change in fair value of derivative liabilities | $ 2,100 | $ (700) | $ 700 | $ (2,300) |