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Leases, Commitments and Contingencies - Future Minimum Rental Payment (Details) $ in Thousands | 1 Months Ended | 9 Months Ended
--- | --- | ---
Oct. 31, 2020 aircraft | Sep. 30, 2020 USD ($) aircraft
Future minimum rental payments required under operating leases |  |
October 2020 through December 2020 |  | $ 22,393
2021 |  | 85,599
2022 |  | 76,923
2023 |  | 69,419
2024 |  | 28,091
Thereafter |  | 98,448
Total |  | $ 380,873
E175 |  |
Future minimum rental payments required under operating leases |  |
Number of aircraft under firm purchase commitment | aircraft |  | 24
CRJ 700 | Subsequent event |  |
Future minimum rental payments required under operating leases |  |
Number of aircraft under firm purchase commitment | aircraft | 21 |

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