Loss on Disposal (Details) $ in Thousands	1 Months Ended	3 Months Ended			6 Months Ended
	Jan. 31, 2023	Jun. 30, 2023 USD ($) aircraft	Jun. 30, 2022 USD ($) aircraft	Mar. 31, 2022 USD ($) aircraft_engine	Jun. 30, 2023 USD ($) aircraft	Jun. 30, 2022 USD ($) aircraft	Dec. 31, 2022 aircraft
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
(Loss) gain on disposal of assets		$ (802)	$ (10,636)		$ (7,902)	$ (22,188)
Gain (loss) on sale-leaseback transaction		$ 1,200	$ (10,200)		$ (6,600)	$ (14,500)
Number of aircraft related to loss | aircraft		3	4		5	7
Repurchase agreement for the sale of aircraft, term	2 years
Number of aircraft sold | aircraft		3			7
Number of engines sold | aircraft		4			11
Write-off of certain unrecoverable costs capitalized		$ 2,300			$ 2,800
Fixed asset impairment charges				$ 6,600
Number of impaired spare engine related to loss on disposal | aircraft_engine				1
Airbus A319
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
(Loss) gain on disposal of assets		$ 300			$ 1,500
Airbus A319 | Aircraft | Impairment Due To Planned Acceleration Of Plane Retirement
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of aircraft, accelerated retirement | aircraft							29