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Convertible Senior Notes (Tables)
 6 Months Ended
Jun. 30, 2024
Debt Disclosure [Abstract]  
Schedule of Debt
The following table presents the net carrying amount of the notes (in thousands):
June 30, 2024December 31, 2023
2026 Notes2025 Notes2026 Notes2025 Notes
Principal$244,479 $358,914 $244,479 $358,914 
Unamortized issuance costs(1,400)(1,076)(1,721)(1,835)
Net carrying amount$243,079 $357,838 $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 June 30,Six Months Ended June 30,
2024
2023
2024
2023
2026 notes:
Contractual interest expense$— $— $— $— 
Amortization of issuance costs160 310 321 635 
Total 2026 notes interest expense$160 $310 $321 $635 
2025 notes:
Contractual interest expense$111 $182 $220 $398 
Amortization of issuance costs380 621 760 1,353 
Total 2025 notes interest expense$491 $803 $980 $1,751