| Summary of long-term debt |
Long-term debt, which includes finance leases, consisted of the following: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | December 31, | | | | | | 2024 | | 2023 | | | | | | (in thousands) | | Senior Secured Credit Facility: | | | | | | | | | | | | Term loan B | | $ | 828,163 | | | $ | 836,903 | | | Revolving credit facility | | — | | | 370,000 | | | 6.5% Senior Secured Notes due 2027 | | 1,200,000 | | | 1,200,000 | | | 3.75% Senior Secured Notes due 2028 | | 500,000 | | | 500,000 | | | 4.875% Senior Notes due 2024 | | — | | | 575,000 | | | 5.625% Senior Notes due 2026 | | 300,000 | | | 300,000 | | | 4.75% Senior Notes due 2027 | | 950,000 | | | 950,000 | | | | | | | | 2.0% Convertible Senior Notes due 2025 | | 83,957 | | | 400,000 | | | 3.125% Convertible Senior Notes due 2029 | | 1,000,000 | | | 1,000,000 | | | 2.875% Convertible Senior Notes due 2030 | | 1,100,000 | | | — | | | Other debt | | 529,257 | | | 511,210 | | | Total principal amount | | 6,491,377 | | | 6,643,113 | | | Less: unamortized discounts and debt issuance costs | | (53,308) | | | (49,701) | | | | | | | | Total debt, net of unamortized discounts and debt issuance costs | | 6,438,069 | | | 6,593,412 | | | Less: current portion | | 260,901 | | | 1,134,386 | | | Total long-term debt, net | | $ | 6,177,168 | | | $ | 5,459,026 | |
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| Future maturities of long-term debt |
Future maturities of debt at December 31, 2024 are as follows: | | | | | | | (in thousands) | | 2025 | $ | 260,901 | | | 2026 | 1,421,182 | | | 2027 | 2,153,632 | | | 2028 | 1,515,468 | | | 2029 | 1,103,078 | | | Thereafter | 37,116 | | | Total | $ | 6,491,377 | |
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| Summary of pretax interest cost recognized on convertible senior notes |
The following table summarizes the amount of pre-tax interest cost recognized on the convertible senior notes due 2025, 2029 and 2030 for the year ended December 31, 2024, convertible senior notes due 2025 and 2029 for the year ended December 31, 2023 and convertible senior notes due 2023 and 2025 for the year ended December 31, 2022: | | | | | | | | | | | | | | | | | | | | | | | | Year Ended December 31, | | | 2024 | | 2023 | | 2022 | | | | | | | (in thousands) | | Interest cost recognized relating to: | | | | | | | | | | | Contractual interest coupon | $ | 41,202 | | | $ | 27,460 | | | $ | 21,750 | | | | | | | Amortization of debt issuance costs | 4,095 | | | 3,912 | | | 3,710 | | | | | | | Total interest cost recognized on the convertible senior notes | $ | 45,297 | | | $ | 31,372 | | | $ | 25,460 | | | | | |
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