Flight Equipment Held for Sale - Narrative (Details) $ in Millions	12 Months Ended
Dec. 31, 2025 USD ($) aircraft	Dec. 31, 2024 USD ($) aircraft
Disposal Group, Held-for-sale, Not Discontinued Operations \| Twelve Aircrafts
Flight Equipment Held for Sale
Number of aircraft	12
Carrying value of assets held for sale \| $	$ 529.0
Disposal Group, Held-for-sale, Not Discontinued Operations \| Two Aircrafts
Flight Equipment Held for Sale
Number of aircraft	2
Purchase deposits \| $	$ 194.9
Disposal Group, Held-for-sale, Not Discontinued Operations \| Thirty Aircrafts
Flight Equipment Held for Sale
Number of aircraft		30
Carrying value of assets held for sale \| $		$ 951.2
Disposal group, including discontinued operation, number of aircrafts transferred	30
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| Forty-Eight Aircrafts
Flight Equipment Held for Sale
Number of aircraft	48

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