Loss (Gain) on Disposal (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($) aircraftLeasebackTransaction	Mar. 31, 2024 aircraftLeasebackTransaction	Mar. 31, 2024 aircraft aircraftLeasebackTransaction	Mar. 31, 2024 aircraftLeasebackTransaction aircraftEngine	Mar. 31, 2023 USD ($) aircraftLeasebackTransaction aircraft	Mar. 31, 2024 aircraft
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on disposal of assets	$ 3,029				$ (7,100)
Aircraft Leaseback Transaction, New Aircraft Deliveries
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on sale-leaseback transaction	8,700
Number of aircraft related to loss | aircraftLeasebackTransaction		3
Aircraft Leaseback Transaction
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on sale-leaseback transaction	$ (1,700)				$ (7,800)
Number of aircraft related to loss | aircraftLeasebackTransaction					2
Additional sale-leaseback transaction		5	5
Number of aircraft on leases		2	2
Failed aircraft sale leaseback	3	3	3	3		3
Aircraft
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Failed aircraft sale leaseback | aircraft						18
Airbus A319
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on disposal of assets	$ (3,900)				$ 1,200
Number of aircraft sold | aircraft			5		4
Number of engines sold | aircraftEngine				15