Deferred Costs for Heavy Maintenance

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- Definition

Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as noncurrent.

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- Definition

Amount of expense for amortization of capitalized computer software costs.

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The carrying amount of capitalized computer software costs net of accumulated amortization as of the balance sheet date.

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Amount of interest costs capitalized disclosed as an adjusting item to interest costs incurred.

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No definition available.

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- Definition

Amount of valuation reserve for inventory.

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Amount of amortization of other deferred costs recognized in the income statement.

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Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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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.

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Summary of Significant Accounting Policies - (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Accounts Receivable, before Allowance for Credit Loss, Noncurrent	$ 12.4	$ 10.9
Inventory Valuation Reserves	6.0	4.3
Interest Costs Capitalized Adjustment	0.2	4.1	$ 4.5
Capitalized Computer Software, Net	43.3	42.3
Capitalized Computer Software, Amortization	$ 10.6	9.6	12.2
Building \| Minimum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	10.00
Building \| Maximum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	25.00
Equipment And Leasehold Improvements \| Minimum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	3.00
Equipment And Leasehold Improvements \| Maximum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	10.00
Computer Hardware and Software \| Minimum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	3.00
Property, Plant and Equipment, Useful Life	3 years
Computer Hardware and Software \| Maximum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	10.00
Property, Plant and Equipment, Useful Life	10 years
A320 Series Engine
Property, Plant and Equipment [Line Items]
Deferred Costs for Heavy Maintenance	$ 23.3	12.8
Amortization of Other Deferred Charges	21.0	17.6
Airbus A320 Aircraft Series
Property, Plant and Equipment [Line Items]
Deferred Costs for Heavy Maintenance	39.0	22.6
Amortization of Other Deferred Charges	$ 21.1	$ 19.9	$ 14.9
Airbus A320 Aircraft Series \| Aircraft And Engines \| Minimum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	10.00
Airbus A320 Aircraft Series \| Aircraft And Engines \| Maximum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	25.00