Collective Bargaining Arrangement, Term

No definition available.

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- Definition

Entity Number of Unionized Employee Groups

+ References

No definition available.

+ Details

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- Definition

Number Of Employees Included In Union Application

+ References

No definition available.

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 954
-SubTopic 310
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481027/954-310-50-2

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-42

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- Definition

The amount needed to reflect the estimated ultimate cost of settling claims relating to insured events that have occurred on or before the balance sheet date, whether or not reported to the insurer at that date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Section 50
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- Details

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- Details

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- Details

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Commitments and Contingencies - Employees (Details) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 31, 2023 USD ($) employeeGroup employee
Health Insurance Product Line
Concentration Risk [Line Items]
Accrued health care claims \| $	$ 11.0	$ 9.1
Air Line Pilots Association, International (ALPA)
Concentration Risk [Line Items]
Collective bargaining arrangement, term	2 years
Aircraft Mechanics Fraternal Association (AMFA) (2)
Concentration Risk [Line Items]
Number of employees included n union application (approximately) \| employee		700
Number of employees, total \| Unionized employees concentration risk
Concentration Risk [Line Items]
Union-represented employee groups \| employeeGroup		6
Concentration of risk		85.00%
Number of employees, total \| Unionized employees concentration risk \| Air Line Pilots Association, International (ALPA)
Concentration Risk [Line Items]
Concentration of risk		27.00%
Number of employees, total \| Unionized employees concentration risk \| Association of Flight Attendants (AFA-CWA)
Concentration Risk [Line Items]
Concentration of risk		47.00%
Number of employees, total \| Unionized employees concentration risk \| Professional Airline Flight Control Association (PAFCA)
Concentration Risk [Line Items]
Concentration of risk		1.00%
Number of employees, total \| Unionized employees concentration risk \| International Association of Machinists and Aerospace Workers (IAMAW)
Concentration Risk [Line Items]
Concentration of risk		3.00%
Number of employees, total \| Unionized employees concentration risk \| Transport Workers Union of America (TWU)
Concentration Risk [Line Items]
Concentration of risk		2.00%
Number of employees, total \| Unionized employees concentration risk \| Aircraft Mechanics Fraternal Association (AMFA) (2)
Concentration Risk [Line Items]
Concentration of risk		5.00%