Commitments and Contingencies - Narrative (Details) $ in Thousands	3 Months Ended	4 Months Ended
	Mar. 31, 2025 USD ($) aircraft	May 05, 2025 aircraft	Apr. 30, 2025 aircraft	Dec. 31, 2024 USD ($)
Long-term Purchase Commitment [Line Items]
Number of aircraft on order with manufacturers | aircraft	260
Purchase obligation | $	$ 16,552,828
Airbus production delay	1 year
Purchase agreements, termination commencement period	1 year
Minimum aircraft delivery delays that could trigger lessee cancellation clauses	1 year
Net book value of leases located in China, percentage	2.20%
Non-refundable deposits on aircraft | $	$ 771,895			$ 761,438
Minimum
Long-term Purchase Commitment [Line Items]
Expected delays in aircraft deliveries	3 years
Maximum
Long-term Purchase Commitment [Line Items]
Expected delays in aircraft deliveries	4 years
Subsequent Event
Long-term Purchase Commitment [Line Items]
Number of aircrafts expected to be subject to tariffs | aircraft		0
Aircrafts
Long-term Purchase Commitment [Line Items]
Non-refundable deposits on aircraft | $	$ 771,900			$ 761,400
737-8 MAX | Subsequent Event
Long-term Purchase Commitment [Line Items]
Number of aircraft on order with manufacturers | aircraft			5