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Convertible Senior Notes (Tables)
 3 Months Ended
Mar. 31, 2024
Debt Disclosure [Abstract]  
Schedule of Debt
The following table presents the net carrying amount of the notes (in thousands):
March 31, 2024December 31, 2023
2026 Notes2025 Notes2026 Notes2025 Notes
Principal$244,479 $358,914 $244,479 $358,914 
Unamortized issuance costs(1,560)(1,456)(1,721)(1,835)
Net carrying amount$242,919 $357,458 $242,758 $357,079 
Schedule Of Interest Expense Recognized
The following table presents the total interest expense recognized related to the notes (in thousands):

Three Months Ended March 31,
2024
2023
2026 notes:
Contractual interest expense$— $— 
Amortization of issuance costs161 325 
Total 2026 notes interest expense$161 $325 
2025 notes:
Contractual interest expense$109 $216 
Amortization of issuance costs380 732 
Total 2025 notes interest expense$489 $948