Sale of Future Revenue - Narrative (Details) - USD ($) $ in Thousands		2 Months Ended	3 Months Ended	12 Months Ended		26 Months Ended
	Nov. 03, 2020	Dec. 31, 2020	Jun. 30, 2020	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Payments of financing costs	$ 2,909
Revenues				$ 47,680	$ 50,832
Minimum royalty receivable			$ 1,000
Monetization Agreement
Disaggregation of Revenue [Line Items]
Effective annual interest rate	24.90%
Monetization Agreement | Marathon Pangolin Royalty LLC
Disaggregation of Revenue [Line Items]
Proceeds from sale of future revenue	$ 40,000	$ 10,000				$ 50,000
Proceeds from debt, contingent on additional milestones	75,000
Royalty
Disaggregation of Revenue [Line Items]
Revenues				$ (916)
Royalty | License Agreement with Sunovion Pharmaceuticals, Inc.
Disaggregation of Revenue [Line Items]
Revenues			$ 8,000
Maximum | Marathon Pangolin Royalty LLC
Disaggregation of Revenue [Line Items]
Proceeds from sale of future revenue	$ 125,000