Basis of Presentation and Summary of Significant Accounting Policies - Other Investment (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Summary of Investment Holdings [Line Items]
Other investments	$ 36,500	$ 36,726
Equity securities in Primrose Bio
Summary of Investment Holdings [Line Items]
Other investments	32,500	32,726
Neuritek warrants
Summary of Investment Holdings [Line Items]
Other investments	3,000	3,000
Palvella Series C preferred stock
Summary of Investment Holdings [Line Items]
Other investments	$ 1,000	$ 1,000