Summary of Significant Accounting Policies - Measurement of Asset Impairments (Details)	1 Months Ended	12 Months Ended
	Jan. 31, 2023	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($) aircraft	Dec. 31, 2021 USD ($)
Property, Plant and Equipment [Line Items]
Asset impairment-related charges		$ 0	$ 333,691,000	$ 0
Agreement to sell aircraft, expected period	2 years
Airbus A319 | Aircraft
Property, Plant and Equipment [Line Items]
Asset impairment-related charges			$ 333,700,000
Airbus A319 | Aircraft | Impairment due to Planned Acceleration of Plane Retirement
Property, Plant and Equipment [Line Items]
Number of aircraft, accelerated retirement | aircraft			29