| Long-term Debt |
Long-term debt at March 31, 2025 and December 31, 2024 consisted of the following (in thousands): | | | | | | | | | | | | | March 31, | | December 31, | | 2025 | | 2024 | 1.125% notes due 2025 | $ | 405,565 | | | $ | 393,346 | | 1.625% notes due 2028 | 537,700 | | | 521,500 | | | | | | 3.45% Senior notes due 2029 | 171,612 | | | 171,612 | | | | | | 4.65% Senior notes due 2027 | 650,000 | | | 650,000 | | 5.05% Senior notes due 2032 | 600,000 | | | 600,000 | | 5.45% Senior notes due 2044 | 350,000 | | | 350,000 | | 5.65% Senior notes due 2052 | 450,000 | | | 450,000 | | | | | | | | | | | | | | | | | | | Interest-free loan | 300,000 | | | 300,000 | | | Variable-rate foreign bank loans | 18,592 | | | 27,477 | | | | | | | Finance lease obligations | 117,872 | | | 118,796 | | | Other | 22,000 | | | 22,000 | | | Unamortized discount and debt issuance costs | (84,209) | | | (88,566) | | | Total long-term debt | 3,539,132 | | | 3,516,165 | | | Less amounts due within one year | 410,477 | | | 398,023 | | | Long-term debt, less current portion | $ | 3,128,655 | | | $ | 3,118,142 | |
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