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Commitments and Contingencies Collective Bargaining (Tables) | 12 Months Ended
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Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract] |
Employees Under Collective Bargaining Agreements [Table Text Block] | The Company is party to collective bargaining agreements with the employee groups listed below. As of December 31, 2020 the percentage of full-time equivalent employees for these pay groups were as follows:
| As of December 31, 2020
Flight Attendants | 36.1 | %
Pilots | 23.2 |
Flight Dispatchers | 1.1 |
Total | 60.3 | %

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