Commitments and Contingencies - Aircraft-Related Commitments and Financing Arrangements (Details)
$ in Millions |
Mar. 31, 2021
USD ($)
aircraft_Engine
aircraft
|
| Unrecorded Unconditional Purchase Obligation [Line Items] |
|
| Number of aircraft to be delivered, remainder of fiscal year | aircraft |
6
|
| Number of aircraft to be delivered, 2022 | aircraft |
17
|
| Airbus |
|
| Unrecorded Unconditional Purchase Obligation [Line Items] |
|
| Future aircraft to be received | aircraft |
126
|
| Aircraft-Related Secured Debt |
|
| Interest Commitments |
|
| Interest commitments, remainder of fiscal year |
$ 59.4
|
| Interest commitments, 2022 |
71.7
|
| Interest commitments, 2023 |
61.0
|
| Interest commitments, 2024 |
49.8
|
| Interest commitments, 2025 |
42.4
|
| Interest commitments, 2026 and thereafter |
96.1
|
| Non-Aircraft-Related Secured Debt, Unsecured Debt And Convertible Debt |
|
| Interest Commitments |
|
| Interest commitments, remainder of fiscal year |
60.1
|
| Interest commitments, 2022 |
77.3
|
| Interest commitments, 2023 |
77.3
|
| Interest commitments, 2024 |
77.3
|
| Interest commitments, 2025 |
68.2
|
| Interest commitments, 2026 and thereafter |
$ 11.8
|
| 2021-2027 | Airbus |
|
| Committed Expenditures |
|
| Number of aircraft without secured financing commitments scheduled for delivery | aircraft |
126
|
| Aircraft and Related Flight Equipment |
|
| Committed Expenditures |
|
| Committed expenditures, remainder of fiscal year |
$ 380.3
|
| Committed expenditures, 2022 |
884.5
|
| Committed expenditures, 2023 |
908.3
|
| Committed expenditures, 2024 |
980.0
|
| Committed expenditures, 2025 |
1,066.6
|
| Committed expenditures, 2026 and thereafter |
2,248.4
|
| Non-aircraft Related Commitments |
|
| Committed Expenditures |
|
| Committed expenditures, remainder of fiscal year |
20.7
|
| Committed expenditures, 2022 |
21.4
|
| Committed expenditures, 2023 |
18.9
|
| Committed expenditures, 2024 |
16.1
|
| Committed expenditures, 2025 |
16.7
|
| Committed expenditures, 2026 and thereafter |
$ 35.6
|
| V2500 SelectTWO Engine | 2021-2023 |
|
| Unrecorded Unconditional Purchase Obligation [Line Items] |
|
| Number of spare aircraft engines ordered | aircraft_Engine |
1
|
| PurePower PW1100G-JM Engine | 2021-2023 |
|
| Unrecorded Unconditional Purchase Obligation [Line Items] |
|
| Number of spare aircraft engines ordered | aircraft_Engine |
2
|
| A-320-Neo | Third Party Lessor |
|
| Unrecorded Unconditional Purchase Obligation [Line Items] |
|
| Future aircraft to be received | aircraft |
8
|
| A320 Family | Third Party Lessor |
|
| Aircraft Rent Commitments For Future Aircraft Deliveries [Abstract] |
|
| Operating lease payments expected for aircraft to be delivered, remainder of fiscal year |
$ 13.7
|
| Operating lease payments expected for aircraft to be delivered, 2022 |
29.2
|
| Operating lease payments expected for aircraft to be delivered, 2023 |
29.2
|
| Operating lease payments expected for aircraft to be delivered, 2024 |
29.2
|
| Operating lease payments expected for aircraft to be delivered, 2025 |
29.2
|
| Operating lease payments expected for aircraft to be delivered, 2026 and thereafter |
$ 220.3
|
| A320 and A321 |
|
| Aircraft Rent Commitments For Future Aircraft Deliveries [Abstract] |
|
| Number of delivered aircraft with secured debt financing commitments | aircraft |
72
|