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Collaborative and Licensing Arrangements - Financing Liability (Details) - Amgen, Inc - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
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Research and Development Arrangement, Contract to Perform for Others |  |
Research and development cost share liability, current portion | $ 111,154 | $ 68,004
Research and development cost share liability, non-current portion | 54,286 | 170,662
Total research and development cost share liability | $ 165,440 | $ 238,666

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