v3.24.2.u1
Debt
6 Months Ended
Jun. 30, 2024
Debt Disclosure [Abstract]  
Debt Debt
As of June 30, 2024 and December 31, 2023, long-term debt consisted of the following (in thousands):
June 30, 2024December 31, 2023
2026 Notes2025 NotesTotal2026 Notes2025 NotesTotal
Outstanding principal balance$212,750 $150,000 $362,750 $212,750 $150,000 $362,750 
Less: Debt issuance costs(2,347)(1,678)(4,025)(2,864)(2,218)(5,082)
Carrying amount, long-term debt$210,403 $148,322 $358,725 $209,886 $147,782 $357,668 
The following tables set forth the total interest expense recognized related to the term loans and the Convertible Notes for the periods indicated (in thousands):
Three Months Ended June 30,Six Months Ended June 30,
2024202320242023
Cash interest expense$2,274 $2,274 $4,548 $4,527 
Amortization of debt issuance costs531 512 1,057 1,010 
Total interest expense$2,805 $2,786 $5,605 $5,537 

The following table summarizes the Company's contractual obligation to settle commitments related to the Convertible Notes as of June 30, 2024 (in thousands):
Payments due by Year
Total202420252026
2026 Notes$212,750 $— $— $212,750 
Interest obligations on 2026 Notes (1)
3,990 798 1,596 1,596 
2025 Notes150,000 — 150,000 — 
Interest obligations on 2025 Notes (1)
11,250 3,750 7,500 — 
(1) The 2026 Notes and 2025 Notes bear interest at a fixed rate of 0.750% and 5.000% per year, respectively.
The effective interest rate of the 2026 Notes is 1.3%. The Company recorded cash interest of $0.8 million and amortization of debt issuance costs of $0.5 million related to the 2026 Notes during the six months ended June 30, 2024 and June 30, 2023, respectively.
The effective interest rate of the 2025 Notes is 5.8%. The Company recorded cash interest of $3.8 million and amortization of debt issuance costs of $0.5 million related to the 2025 Notes during the six months ended June 30, 2024 and June 30, 2023, respectively.
The fair value of the 2026 Notes and 2025 Notes, which the Company has classified as Level 2 instruments, was $184.5 million and $148.5 million respectively, as of June 30, 2024. The fair value of the Convertible Notes is determined using observable market prices on the last business day of the period.