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Sale of Future Royalties - Narrative (Details)	1 Months Ended			3 Months Ended		9 Months Ended
	May 31, 2024 USD ($)	Sep. 30, 2022 USD ($)	Oct. 31, 2021 USD ($)	Sep. 30, 2025 USD ($) milestone	Sep. 30, 2024 USD ($) milestone	Sep. 30, 2025 USD ($) milestone	Sep. 30, 2024 USD ($) milestone	Dec. 31, 2024 USD ($)	Jan. 01, 2021
Liabilities Related To Sale Of Future Royalties [Line Items]
Expected milestone payment				$ 50,000,000		$ 50,000,000
Collaboration revenue				76,320,000	$ 30,017,000	126,354,000	$ 48,167,000
Liability related to sale of future royalties				331,844,000		331,844,000		$ 353,426,000
Non-cash interest expense				$ 22,515,000	15,413,000	$ 60,182,000	32,683,000
Jemperli Royalty Monetization Agreement
Liabilities Related To Sale Of Future Royalties [Line Items]
Net of proceeds			$ 299,500,000
Effective interest rate (as a percent)				30.50%		30.50%
Non-cash interest expense and amortization of issuance costs				$ 22,300,000	15,200,000	$ 59,400,000	32,000,000
Non-cash interest expense						59,395,000
Jemperli Royalty Monetization Agreement | Sagard
Liabilities Related To Sale Of Future Royalties [Line Items]
Proceeds from sale of future royalties			250,000,000
Royalties and milestones received				142,300,000		142,300,000
Issuance costs related to the sale of future royalties			400,000
Jemperli Royalty Monetization Agreement | Sagard | By the end of 2026
Liabilities Related To Sale Of Future Royalties [Line Items]
Royalties and milestones, agreement amount to be received			600,000,000
Jemperli Royalty Monetization Agreement | Sagard | During 2027
Liabilities Related To Sale Of Future Royalties [Line Items]
Royalties and milestones, agreement amount to be received			675,000,000
Jemperli Royalty Monetization Agreement | GSK
Liabilities Related To Sale Of Future Royalties [Line Items]
Collaboration revenue				24,900,000	13,800,000	63,200,000	30,100,000
Zejula Royalty Monetization Agreement
Liabilities Related To Sale Of Future Royalties [Line Items]
Issuance costs related to the sale of future royalties		$ 200,000
Net of proceeds		34,800,000
Non-cash interest expense						673,000
Zejula Royalty Monetization Agreement | GSK
Liabilities Related To Sale Of Future Royalties [Line Items]
Collaboration revenue				1,400,000	1,200,000	3,400,000	3,100,000
Settlement agreement rate (as a percent)									0.50%
Non-cash interest expense				200,000	200,000	700,000	700,000
Zejula Royalty Monetization Agreement | DRI Healthcare Trust
Liabilities Related To Sale Of Future Royalties [Line Items]
Proceeds from sale of future royalties		35,000,000
Liability related to sale of future royalties		$ 35,000,000
Jemperli Royalty Monetization Agreement Amendment 1 | Sagard
Liabilities Related To Sale Of Future Royalties [Line Items]
Proceeds from sale of future royalties	$ 50,000,000
Issuance costs related to the sale of future royalties	$ 100,000
JEMPERLI Royalty Monetization Agreement | Sagard
Liabilities Related To Sale Of Future Royalties [Line Items]
Rights retained			75,000,000
Royalties agreement, maximum annual royalty payout capacity			$ 1,000,000,000
Third commercial sales milestone | GSK | PD-1 (Jemperli/Dostarlimab)
Liabilities Related To Sale Of Future Royalties [Line Items]
Collaboration revenue				$ 50,000,000.0		$ 50,000,000
Number of milestone | milestone				1		1
Revenue recognition milestone annual sales threshold				$ 750,000,000		$ 750,000,000
First commercial sales milestone | GSK | PD-1 (Jemperli/Dostarlimab)
Liabilities Related To Sale Of Future Royalties [Line Items]
Collaboration revenue					$ 15,000,000		$ 15,000,000
Number of milestone | milestone					1		1
Revenue recognition milestone annual sales threshold					$ 250,000,000		$ 250,000,000

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