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Revenue Recognition (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Passenger	$ 1,578,436	$ 902,187	$ 1,682,955
Air Traffic Liability, Current		307,500
Air Traffic Liability, Recognized	88.00%
Contract with Customer, Liability, Credit Voucher Bookings	$ 67,000
Contract with Customer, Liability, Forward Bookings	$ 240,500
Revenue from Contract with Customer, Duration	12 months
Scheduled Service Revenue
Disaggregation of Revenue [Line Items]
Passenger	$ 769,371	435,668	897,631
Air-related revenue
Disaggregation of Revenue [Line Items]
Passenger	788,064	453,545	770,206
Co-brand Revenue
Disaggregation of Revenue [Line Items]
Passenger	$ 21,001	$ 12,974	$ 15,118

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The value of air transportation services sold but as yet unused by the passenger, including sales for air transportation to be provided by the reporting air carrier and air transportation to be provided by another air carrier for whom sales were made. Used to reflect the current portion of the liability (within one year or within the normal operating cycle if longer).

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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