Royalty and Commercial Payment Purchase Agreements - EIR Method - Affitech (Details) - USD ($) $ in Thousands		1 Months Ended		12 Months Ended
	Apr. 01, 2024	Mar. 31, 2025	Oct. 31, 2021	Dec. 31, 2025	Dec. 31, 2024	Mar. 31, 2024
Agreements
Payments of consideration under RPAs, AAAs and CPPAs				$ 8,000	$ 53,000
Long-term royalty and commercial payment receivables under the cost recovery method				55,888	55,936
Contingent consideration under RPAs, AAAs, and CPPAs				0	3,000
Reclassification of royalty and commercial payment receivables from the cost recovery to the EIR method, EIR method				2,874	14,976
Income from purchased receivables under the EIR method				26,745	15,066
Receipts under RPAs, AAAs, and CPPAs				3,300	29,248
Short-term royalty and commercial payment receivables under the EIR method				$ 22,780	14,763
Sales-based milestones, fourth
Agreements
Payments of consideration under RPAs, AAAs and CPPAs	$ 3,000
Affitech
Agreements
Reclassification of royalty and commercial payment receivables from the cost recovery to the EIR method, EIR method					7,795
Income from purchased receivables under the EIR method					14,800
Affitech | Commercial Payment Purchase Agreement
Agreements
Payments of consideration under RPAs, AAAs and CPPAs		$ 6,000	$ 6,000
Payments eligible to receive (as a percent)			0.50%
Commercial payment receivable term			10 years
Maximum commercial sales milestone payments			$ 12,000
Period from each royalty payment date payment is due				60 days
Reclassification of royalty and commercial payment receivables from the cost recovery to the EIR method, EIR method	$ 7,800
Income from purchased receivables under the EIR method				$ 24,000	14,800
Receipts under RPAs, AAAs, and CPPAs				22,500
Allowance for credit losses				$ 0	$ 0
Affitech | Commercial Payment Purchase Agreement | Regulatory milestones
Agreements
Contingent consideration under RPAs, AAAs, and CPPAs			$ 8,000
Affitech | Commercial Payment Purchase Agreement | Sales-based milestones, third
Agreements
Payments of consideration under RPAs, AAAs and CPPAs		3,000
Contingent consideration under RPAs, AAAs, and CPPAs						$ 3,000
Short-term royalty and commercial payment receivables under the EIR method						$ 3,000
Affitech | Commercial Payment Purchase Agreement | Sales-based milestones, fourth
Agreements
Payments of consideration under RPAs, AAAs and CPPAs		$ 3,000