Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due To Special Termination Benefits

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Gain (Loss) On Debt Extinguishment And Modification, Nonoperating

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Gain (Loss) On Financial Instruments, Non-Operating

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Amount of gain (loss) on sale of other assets and other miscellaneous charges.

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Grant Income

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Number of Aircraft and Related Spare Engines Retired

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Proceeds From Government Assistance

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Restructuring And Related Cost, Number Of Employees Voluntarily Separated

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Restructuring Programs, One-Time Contribution Per Employee

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Gross amount of debt extinguished.

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Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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The amount of loss pertaining to the specified contingency that was charged against earnings in the period, including the effects of revisions in previously reported estimates.

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Period expense related to postemployment benefits.

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The cash inflow from the issuance of long-term debt that is not secured by collateral. Excludes proceeds from tax exempt unsecured debt.

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The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt).

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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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Special Charges (Credits) - Narrative (Details) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($) aircraft	Mar. 31, 2021 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($) aircraft employee
Restructuring Cost and Reserve [Line Items]
(Gains) losses on sale of assets and other special charges	$ 20,000	$ (17,000)		$ 124,000	$ 60,000
Loss contingency, loss in period				94,000
Nonoperating unrealized gains (losses)	28,000	(34,000)		(12,000)	91,000
Debt extinguishment costs				7,000
Government assistance received					5,800,000
Government assistance received through unsecured loans					1,700,000
Severance and benefit costs	0	5,000		0	433,000
Impairment of assets	0	46,000		0	105,000
Nonoperating debt extinguishment and modification fees	0	(12,000)		7,000	50,000
Nonoperating special termination benefits	0	$ 0		0	(46,000)
Embraer EMB 145LR
Restructuring Cost and Reserve [Line Items]
Impairment of assets					$ 59,000
Number of aircraft and related spare engines retired \| aircraft		64			64
Employee Separation \| Voluntary Separation Leave Programs
Restructuring Cost and Reserve [Line Items]
Number of employees electing to voluntarily separate from the company \| employee					4,500
Nonoperating special termination benefits					$ 46,000
Employee Separation \| Voluntary Separation Leave Programs \| Full-Time Employees
Restructuring Cost and Reserve [Line Items]
One-time per employee contribution for special termination benefits related to VSL programs			$ 125		125
Employee Separation \| Voluntary Separation Leave Programs \| Part-Time Employees
Restructuring Cost and Reserve [Line Items]
One-time per employee contribution for special termination benefits related to VSL programs			$ 75		75
Payroll Support Program 2 & 3 (PSP 2 & 3) Warrants
Restructuring Cost and Reserve [Line Items]
Issuance of warrants					99,000
PSP 2 & 3 Note
Restructuring Cost and Reserve [Line Items]
Grant income		$ 1,100,000			$ 4,000,000
Unsecured Debt
Restructuring Cost and Reserve [Line Items]
Long-term debt	$ 400,000			$ 400,000