Collaborative and Licensing Arrangements - Schedule of Financing Liability (Details) - Amgen, Inc - USD ($) $ in Thousands |
Jun. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Research and Development Arrangement, Contract to Perform for Others | ||
| Research and development cost share liability, current portion | $ 108,992 | $ 111,154 |
| Research and development cost share liability, non-current portion | 10,879 | 54,286 |
| Total research and development cost share liability | $ 119,871 | $ 165,440 |