Debt - Schedule of Debt (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Debt
Total	$ 453,500		$ 453,500
Less: Unamortized debt discount and issuance costs	(6,741)		(7,266)
Total long-term debt, net	$ 446,759		446,234
HealthCare Royalty Partners
Debt
Maximum potential royalty payout	14.00%
Increase in maximum potential payout percent	18.00%
Maximum aggregate royalty payments	$ 225,000
Required payment for breach of agreement, payment one	125,000
Payment for royalty agreement	20,000
2025 Notes | Convertible senior notes
Debt
Total debt	192,500		192,500
Less: Unamortized debt discount and issuance costs	(1,024)		(1,205)
2028 Notes | Convertible senior notes
Debt
Total debt	261,000		261,000
Less: Unamortized debt discount and issuance costs	(5,717)		(6,061)
Royalty Financing Agreement | Loans Payable [Member] | HealthCare Royalty Partners
Debt
Interest expense	2,700	$ 1,200
Deferred Royalty Obligations	70,100		$ 69,900
Royalty Payments	$ 1,900
Interest Rate of Deferred Royalty Obligation	16.62%