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Special Charges - Narrative (Details) $ in Millions	1 Months Ended	3 Months Ended	12 Months Ended
	Sep. 30, 2023 Aircraft	Mar. 31, 2024 USD ($) Aircraft	Dec. 31, 2023 Aircraft
Unusual or Infrequent Item, or Both [Line Items]
Number of aircraft retired | Aircraft	21	2	2
Hurricane Ian
Unusual or Infrequent Item, or Both [Line Items]
Unusual or infrequent item, or both, loss, gross		$ 78.2
Unusual or infrequent item, or both, insurance proceeds		$ 52.5

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Amount of insurance proceeds for an event or transaction that is unusual in nature or infrequent in occurrence, or both.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483613/220-20-50-1

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Amount, before deduction of insurance proceeds, of loss recognized in the income statement for an event or transaction that is unusual in nature or infrequent in occurrence, or both.

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-Topic 220
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-Section 50
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