Accrued Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Payables and Accruals [Abstract]
Salaries, wages and benefits	$ 162,455	$ 142,893
Federal excise and other passenger taxes and fees payable	88,401	77,409
Airport obligations	78,890	85,772
Fuel	54,313	55,103
Aircraft maintenance	46,861	39,178
Interest payable	25,412	24,526
Aircraft and facility lease obligations	22,729	23,049
Other	52,097	32,824
Other current liabilities	$ 531,158	$ 480,754