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Financing Arrangements (Tables)
9 Months Ended
Sep. 30, 2024
Debt Disclosure [Abstract]  
Schedule of Convertible Debt
The net carrying amounts of the 2026 Notes were as follows:
September 30, 2024December 31, 2023
(in thousands)
Principal$1,293,750 $1,293,750 
Unamortized debt issuance costs(7,418)(10,388)
Carrying amount, net$1,286,332 $1,283,362 
Schedule of Interest Expense
The following tables set forth total interest expense recognized related to the Notes:
Three Months Ended September 30,
20242023
2026 Notes2025 Notes2026 Notes2025 Notes
(in thousands)
Coupon interest expense$— $— $— $12 
Amortization of debt issuance costs990 — 989 70 
Total$990 $— $989 $82 
Nine Months Ended September 30,
20242023
2026 Notes2025 Notes2026 Notes2025 Notes
(in thousands)
Coupon interest expense$— $— $— $477 
Amortization of debt issuance costs2,970 — 2,970 559 
Total$2,970 $— $2,970 $1,036