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Basis of Presentation and Summary of Significant Accounting Policies - Other Investment (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Summary of Investment Holdings |  |
Other investments | $ 10,741 | $ 36,726
Equity securities in Primrose Bio |  |
Summary of Investment Holdings |  |
Other investments | 6,741 | 32,726
Neuritek warrants |  |
Summary of Investment Holdings |  |
Other investments | 3,000 | 3,000
Palvella Series C preferred stock |  |
Summary of Investment Holdings |  |
Other investments | $ 1,000 | $ 1,000

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