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Fair Value Measurements - Additional Information (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Jun. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Realized gain on sale of equity securities				$ 32,139
Estimated fair value of equity securities		$ 0		0		$ 41,937
Unrealized gain on equity securities		$ 0	$ 694	$ 0	$ 2,023
Vaxcyte, Inc. | Vaxcyte Common Stock
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Shares of common stock, sold		667,780	0	667,780	0
Investment, Type [Extensible Enumeration]		Equity Securities [Member]	Equity Securities [Member]	Equity Securities [Member]	Equity Securities [Member]
Realized gain on sale of equity securities		$ 23,700		$ 32,100
Number of shares held		0		0		667,780
Estimated fair value of equity securities		$ 74,000		$ 74,000		$ 41,900
Blackstone Life Sciences | Royalty | 2015 License Agreement
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Revenue interest percentage	4.00%			4.00%

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