Supplemental Financial Data, Accrued Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Accrued Liabilities [Abstract]
Clinical development expenses	$ 75,929	$ 105,967
In-licensing expenses	6,436	7,454
Commercial expenses	4,739	4,875
Other miscellaneous expenses	18,944	29,598
Total accrued liabilities	$ 106,048	$ 147,894