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Nature of Operations and Summary of Significant Accounting Policies - Property and Equipment (Details)	12 Months Ended
	Dec. 31, 2021
Aircraft and rotable spares | Maximum [Member]
Property and Equipment
Depreciable Life	22 years
Residual Value (as a percent)	20.00%
Ground equipment
Property and Equipment
Residual Value (as a percent)	0.00%
Ground equipment | Maximum [Member]
Property and Equipment
Depreciable Life	10 years
Office Equipment [Member]
Property and Equipment
Residual Value (as a percent)	0.00%
Office Equipment [Member] | Maximum [Member]
Property and Equipment
Depreciable Life	7 years
Leasehold Improvements [Member]
Property and Equipment
Residual Value (as a percent)	0.00%
Leasehold Improvements [Member] | Maximum [Member]
Property and Equipment
Depreciable Life	15 years
Building [Member]
Property and Equipment
Residual Value (as a percent)	0.00%
Building [Member] | Minimum [Member]
Property and Equipment
Depreciable Life	20 years
Building [Member] | Maximum [Member]
Property and Equipment
Depreciable Life	39 years 6 months

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- References

No definition available.

+ Details

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- Definition

Stated as a percentage, the estimated or actual value of the asset at the end of its useful life or when it is no longer serviceable (cannot be used for its original purpose) divided by its [historical] capitalized cost.

+ References

No definition available.

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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

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- Details

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