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Leases, Commitments, Guarantees and Contingencies (Tables) | 6 Months Ended
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Jun. 30, 2025
Leases, Commitments, Guarantees and Contingencies |
Summary of related terms and discount rates | The table below presents lease related terms and discount rates as of June 30, 2025:
​ | ​
​ | ​
Weighted-average remaining lease term for operating leases | 11.0 years
Weighted-average discount rate for operating leases | 6.3%
Summary of lease costs | The Company’s lease costs for the three and six months ended June 30, 2025 and 2024 included the following components (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the three months ended June 30, | ​ | For the six months ended June 30,
​ |  | 2025 |  | 2024 |  | 2025 |  | 2024
Operating lease cost | ​ | $ | 8,946 | ​ | $ | 6,658 | ​ | $ | 17,196 | ​ | $ | 13,917
Variable and short-term lease cost | ​ |  | 639 | ​ |  | 543 | ​ |  | 1,128 | ​ |  | 1,576
Sublease income | ​ | ​ | (1,004) | ​ | ​ | (1,268) | ​ | ​ | (2,119) | ​ | ​ | (2,514)
Total lease cost | ​ | $ | 8,581 | ​ | $ | 5,933 |  | $ | 16,205 | ​ | $ | 12,979
Summary of commitments and obligations | The following table summarizes the Company’s commitments and obligations for future minimum rental payments required under operating leases that had initial or remaining non-cancelable lease terms as of June 30, 2025, firm aircraft and spare engine commitments, interest commitments and principal maturities on long-term debt as noted for each of the next five years and thereafter (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Total |  | Jul - Dec 2025 |  | 2026 |  | 2027 |  | 2028 |  | 2029 |  | Thereafter
Operating lease payments for aircraft and facility obligations | ​ | $ | 118,743 | ​ | $ | 10,479 | ​ | $ | 19,009 | ​ | $ | 16,149 | ​ | $ | 10,857 | ​ | $ | 9,140 | ​ | $ | 53,109
Firm aircraft and spare engine commitments |  | ​ | 2,434,032 | ​ | ​ | 206,791 | ​ | ​ | 229,169 | ​ | ​ | 323,267 | ​ | ​ | 329,050 | ​ | ​ | 309,213 | ​ | ​ | 1,036,542
Interest commitments |  | ​ | 378,901 | ​ | ​ | 52,465 | ​ | ​ | 89,342 | ​ | ​ | 66,074 | ​ | ​ | 49,244 | ​ | ​ | 36,917 | ​ | ​ | 84,859
Principal maturities on long-term debt |  | ​ | 2,514,645 | ​ | ​ | 266,934 | ​ | ​ | 535,083 | ​ | ​ | 490,204 | ​ | ​ | 320,265 | ​ | ​ | 216,724 | ​ | ​ | 685,435
Total commitments and obligations | ​ | $ | 5,446,321 | ​ | $ | 536,669 | ​ | $ | 872,603 | ​ | $ | 895,694 | ​ | $ | 709,416 | ​ | $ | 571,994 | ​ | $ | 1,859,945

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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-4 + Details
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