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Basis of Presentation and Summary of Significant Accounting Policies - Schedule of Derivative Assets (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Derivative [Line Items] |  |
Total noncurrent derivative assets | $ 18,029 | $ 10,583
Primrose Bio |  |
Derivative [Line Items] |  |
Total noncurrent derivative assets | 3,548 | 3,451
Castle Creek Warrant |  |
Derivative [Line Items] |  |
Current derivative assets | 5,693 | 0
Castle Creek Milestone |  |
Derivative [Line Items] |  |
Current derivative assets | 1,833 | 0
Partner Programs | Agenus, Inc. |  |
Derivative [Line Items] |  |
Total noncurrent derivative assets | 6,673 | 6,326
Equity Option | Agenus, Inc. |  |
Derivative [Line Items] |  |
Total noncurrent derivative assets | $ 282 | $ 806

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