License and Other Agreements - Broad License Agreement - Change in Fair Value of Success Payment Liability (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] | ||
| Change in fair value of derivative liabilities | $ (2,500) | $ (3,200) |
| Broad Institute | ||
| Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] | ||
| Change in fair value of derivative liabilities | $ (1,400) | $ (1,600) |