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Flight Equipment Held for Sale - Narrative (Details) $ in Millions	9 Months Ended
	Sep. 30, 2024 USD ($) aircraft	Dec. 31, 2023 USD ($) aircraft
Disposal Group, Held-for-sale, Not Discontinued Operations | Twenty-Three Aircrafts
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of aircrafts sold	23
Carrying value of assets held for sale | $	$ 741.1
Disposal Group, Held-for-sale, Not Discontinued Operations | Five Aircrafts
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of aircrafts sold	5
Purchase deposits | $	$ 186.9
Disposal Group, Held-for-sale, Not Discontinued Operations | Thirty-Five Aircrafts
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of aircrafts transferred	35
Disposal Group, Held-for-sale, Not Discontinued Operations | Fourteen Aircrafts
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of aircrafts sold		14
Carrying value of assets held for sale | $		$ 605.1
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Twenty-Five Aircrafts
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of aircrafts sold	25

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Amount classified as property, plant and equipment attributable to disposal group held for sale or disposed of.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 10
-SubTopic 20
-Topic 205
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483475/205-20-45-10

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-Topic 205
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483499/205-20-50-5B

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-Topic 360
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