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v3.20.1

Leases, Commitments and Contingencies (Tables) | 3 Months Ended
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Mar. 31, 2020
Leases, Commitments and Contingencies |
Summary of related terms and discount rates | ​
​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​
​ ​ | March 31, 2020
Weighted-average remaining lease term for operating leases |  | 6.8 years |
Weighted-average discount rate for operating leases | ​ | ​ | 6.4% | ​
Summary of lease costs | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the three months ended March 31,
​ |  | 2020 |  | 2019
Operating lease cost |  | $ | 25,018 |  | $ | 27,221
Variable and short-term lease cost | ​ |  | 1,344 | ​ |  | 1,475
Sublease income | ​ | ​ | (1,571) | ​ | ​ | —
Total lease cost |  | $ | 24,791 |  | $ | 28,696
​
​ | ​ | ​ | ​ | ​ | ​ | ​
Schedule of future minimum rental payments for operating leases | ​
​ | ​ | ​ | ​ | ​
April 2020 through December 2020 |  | $ | 75,137 |
2021 | ​ |  | 85,409 | ​
2022 | ​ |  | 75,776 | ​
2023 | ​ |  | 69,623 | ​
2024 | ​ |  | 28,320 | ​
Thereafter | ​ |  | 100,234 | ​
​ | ​ | $ | 434,499 | ​
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 |  | Apr - Dec 2020 |  | 2021 |  | 2022 |  | 2023 |  | 2024 |  | Thereafter |
Operating lease payments for aircraft and facility obligations | ​ | $ | 434,499 | ​ | $ | 75,137 | ​ | $ | 85,409 | ​ | $ | 75,776 | ​ | $ | 69,623 | ​ | $ | 28,320 | ​ | $ | 100,234 |
Firm aircraft and spare engine commitments |  | ​ | 714,797 | ​ | ​ | 435,183 | ​ | ​ | 274,114 | ​ | ​ | 5,500 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​
Interest commitments (1) |  | ​ | 543,153 | ​ | ​ | 88,581 | ​ | ​ | 104,678 | ​ | ​ | 90,251 | ​ | ​ | 73,946 | ​ | ​ | 59,373 | ​ | ​ | 126,324 | ​
Principal maturities on long-term debt |  | ​ | 2,927,262 | ​ | ​ | 277,692 | ​ | ​ | 352,005 | ​ | ​ | 365,907 | ​ | ​ | 374,906 | ​ | ​ | 327,630 | ​ | ​ | 1,229,122 | ​
Total commitments and obligations | ​ | $ | 4,619,711 | ​ | $ | 876,593 | ​ | $ | 816,206 | ​ | $ | 537,434 | ​ | $ | 518,475 | ​ | $ | 415,323 | ​ | $ | 1,455,680 | ​
​
(1) | At March 31, 2020, all of the Company’s total 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=77888426&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=77888426&loc=SL77918701-209980 + Details
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