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Debt (Tables)
 12 Months Ended
Dec. 31, 2022
Debt Disclosure [Abstract]  
Schedule of Net Carrying Amount of Debt
The 2025 Notes consist of the following (in thousands):
December 31,
20222021
Principal$161,898 $161,898 
Add: fair value of embedded derivative — 926 
Less: unamortized debt discount (1,933)(2,761)
Less: unamortized issuance costs(1,538)(2,197)
Net carrying amount$158,427 $157,866 
December 31,
2022
Gross amount outstanding (in thousands)$7,851 
Less: unamortized debt issuance cost(932)
Revolving credit facility, net$6,919 
Schedule of Interest Expense The following table sets forth total interest expense recognized related to the 2025 Notes (in thousands):
Year Ended December 31,
202220212020
Contractual interest expense$5,262 $5,271 $3,434 
Amortization of debt discount828 829 552 
Amortization of debt issuance costs659 660 439 
Total interest expense$6,749 $6,760 $4,425 
The following table sets forth total interest expense recognized related to the Credit Facility (in thousands):
December 31,
2022
Contractual interest expense$211 
Amortization of debt issuance costs194 
Total interest expense$405