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Debt (Tables)
12 Months Ended
Dec. 31, 2020
Debt Disclosure [Abstract]  
Schedule of Long-term Debt
The Company recorded Madryn debt on the balance sheet as follows:
December 31,
20202019
(in thousands)
Principal$65,000 $65,000 
Net unamortized debt discount and issuance costs(15,168)(16,858)
Net carrying value of Madryn debt$49,832 $48,142