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Royalty Linked Notes - Summary of Royalty-Linked Notes (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
Dec. 31, 2021
Royalty Linked Notes [Abstract]    
Total liability related to the sale of future royalties, on inception $ 10,990  
Liability related to the sale of future royalties, arising from the Rights Offering 51  
Amortization of discount and debt issuance costs 3,666  
Adjustments to fair value 310  
Total liability related to the sale of future royalties at March 31, 2022 14,397  
Long-term Portion $ 14,397 $ 17,968