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Leases, Commitments, Guarantees and Contingencies (Tables) | 9 Months Ended
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Sep. 30, 2022
Leases, Commitments, Guarantees and Contingencies |
Summary of related terms and discount rates | ​
​ | ​
​ | As of September 30, 2022
Weighted-average remaining lease term for operating leases | 6.4 years
Weighted-average discount rate for operating leases | 6.0%
Summary of lease costs | The Company’s lease costs for the three and nine months ended September 30, 2022 and 2021 included the following components (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the three months ended September 30, | ​ | For the nine months ended September 30,
​ |  | 2022 |  | 2021 |  | 2022 |  | 2021
Operating lease cost | ​ | $ | 21,697 | ​ | $ | 23,370 | ​ | $ | 65,360 | ​ | $ | 67,582
Variable and short-term lease cost | ​ |  | 765 | ​ |  | 976 | ​ |  | 2,588 | ​ |  | 3,256
Sublease income | ​ | ​ | (1,845) | ​ | ​ | (1,888) | ​ | ​ | (5,492) | ​ | ​ | (4,717)
Total lease cost | ​ | $ | 20,617 | ​ | $ | 22,458 |  | $ | 62,456 | ​ | $ | 66,121
Schedule of future minimum rental payments for operating leases | The following table summarizes future minimum rental payments primarily related to leased aircraft required under operating leases that had initial or remaining non-cancelable lease terms as of September 30, 2022 (in thousands): ​
​ | ​ | ​ | ​
July 2022 through December 2022 |  | $ | 22,328
2023 | ​ |  | 76,223
2024 | ​ |  | 33,452
2025 | ​ |  | 17,590
2026 | ​ |  | 15,491
Thereafter | ​ |  | 72,872
​ | ​ | $ | 237,956
Summary of commitments and obligations | The following table summarizes the Company’s commitments and obligations as noted for each of the next five years and thereafter (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Total |  | Oct - Dec 2022 |  | 2023 |  | 2024 |  | 2025 |  | 2026 |  | Thereafter
Operating lease payments for aircraft and facility obligations | ​ | $ | 237,956 | ​ | $ | 22,328 | ​ | $ | 76,223 | ​ | $ | 33,452 | ​ | $ | 17,590 | ​ | $ | 15,491 | ​ | $ | 72,872
Firm aircraft and spare engine commitments |  | ​ | 244,425 | ​ | ​ | 104,088 | ​ | ​ | 85,670 | ​ | ​ | 26,896 | ​ | ​ | 27,771 | ​ | ​ | — | ​ | ​ | —
Interest commitments (1) |  | ​ | 565,683 | ​ | ​ | 32,824 | ​ | ​ | 126,265 | ​ | ​ | 108,355 | ​ | ​ | 88,733 | ​ | ​ | 69,670 | ​ | ​ | 139,836
Principal maturities on long-term debt |  | ​ | 3,441,734 | ​ | ​ | 110,392 | ​ | ​ | 437,798 | ​ | ​ | 438,782 | ​ | ​ | 522,388 | ​ | ​ | 498,757 | ​ | ​ | 1,433,617
Total commitments and obligations | ​ | $ | 4,489,798 | ​ | $ | 269,632 | ​ | $ | 725,956 | ​ | $ | 607,485 | ​ | $ | 656,482 | ​ | $ | 583,918 | ​ | $ | 1,646,325
(1) | At September 30, 2022, the Company’s long-term debt had fixed interest rates.

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- Definition Tabular disclosure of contractual obligation by timing of payment due. Includes, but is not limited to, long-term debt obligation, lease obligation, and purchase obligation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 303 -Paragraph (a) -Subparagraph (5) + Details
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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 -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 + Details
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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980 + Details
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