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COVID-19 COVID-19 Segment (Details) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2021 USD ($) Aircraft engine | Mar. 31, 2020 USD ($)
Segment Reporting Information [Line Items] |  |
Operating Special Charge, Total | $ 1,738 | $ 166,098
Non-Operating Special Charge, Total | 0 | 6,802
Special Charges | 1,738 | 172,900
Asset Impairment Charges |  | 163,400
Other Aircraft Related Costs | $ 1,200 |
Number of Engines Retired | engine | 3 |
Other Expenses | $ 500 |
COVID 19 |  |
Segment Reporting Information [Line Items] |  |
Operating Special Charge, Total |  | $ 9,500
Airbus A320 Aircraft Series |  |
Segment Reporting Information [Line Items] |  |
Number of Aircraft Retired | Aircraft | 2 |

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