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Leases, Commitments, Guarantees and Contingencies - Commitments and Obligations (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Operating lease payments for aircraft and facility obligations |  |
Apr - Dec 2024 | $ 15,726 |
2025 | 17,974 |
2026 | 14,910 |
2027 | 12,983 |
2028 | 9,976 |
Thereafter | 56,592 |
Total future minimum operating lease payments | 128,161 |
Firm aircraft and spare engine commitments |  |
Apr - Dec 2024 | 143,810 |
2025 | 230,725 |
2026 | 236,410 |
Total | 610,945 |
Interest commitments |  |
Apr - Dec 2024 | 84,964 |
2025 | 97,933 |
2026 | 78,149 |
2027 | 56,289 |
2028 | 40,947 |
Thereafter | 84,540 |
Total | 442,822 |
Principal maturities on long-term debt |  |
Apr - Dec 2024 | 339,156 |
2025 | 532,255 |
2026 | 510,598 |
2027 | 464,289 |
2028 | 292,862 |
Thereafter | 779,811 |
Total | 2,918,971 | $ 3,030,310
Total commitments and obligations |  |
Apr - Dec 2024 | 583,656 |
2025 | 878,887 |
2026 | 840,067 |
2027 | 533,561 |
2028 | 343,785 |
Thereafter | 920,943 |
Total | $ 4,100,899 |

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