Liability Related to the Sale of Future Royalties - Liability Due to Non-Cash Transaction (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2022 USD ($)
Nonmonetary Transaction [Roll Forward]
Carrying value of liability related to the sale of future royalties beginning balance	$ 53,798
Amortization of capitalized issuance costs	46
Imputed interest expense	3,074
Less: payments to Oberland Capital, LLC	(6,649)
Carrying value of liability related to the sale of future royalties ending balance	$ 50,269