Sale of Future Revenue - Royalty Obligation (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Sale of Future Revenue [Roll Forward]
Liability related to the sale of future revenue, net at December 31, 2022			$ 65,259
Revenues	$ 13,002	$ 11,463	37,377	$ 36,998
Amortization of issuance costs			163
Interest expense related to the sale of future revenue			0	$ 5,683
Liability related to the sale of future revenue, net (includes current portion of $985)	64,496		64,496
Current portion	$ 985		985
Royalty
Sale of Future Revenue [Roll Forward]
Revenues			$ (926)