Leases - Finance and Operating Lease Maturities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Finance Leases
Remainder of 2022	$ 631
2023	465
2024	215
2025	117
2026	39
2027 and thereafter	0
Total minimum lease payments	1,467
Less amount representing interest	72
Present value of minimum lease payments	1,395
Less current portion	761
Long-term portion	634
Operating Leases
Less current portion	164,814	$ 158,631
Long-term portion	1,835,306	$ 1,751,351
Total Operating and Finance Lease Obligations
Remainder of 2022	204,649
2023	266,654
2024	252,044
2025	231,086
2026	204,520
2027 and thereafter	1,802,503
Total minimum lease payments	2,961,456
Less amount representing interest	959,941
Present value of minimum lease payments	2,001,515
Less current portion	165,575
Long-term portion	$ 1,835,940
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Long-term Debt and Lease Obligation, Including Current Maturities	Long-term Debt and Lease Obligation, Including Current Maturities
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Current maturities of long-term debt, net and finance leases	Current maturities of long-term debt, net and finance leases
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Long-term debt, net and finance leases, less current maturities	Long-term debt, net and finance leases, less current maturities
Aircraft and Spare Engine Leases
Operating Leases
Remainder of 2022	$ 199,747
2023	260,628
2024	248,019
2025	229,777
2026	203,517
2027 and thereafter	1,660,329
Total minimum lease payments	2,802,017
Less amount representing interest	826,808
Present value of minimum lease payments	1,975,209
Less current portion	160,378
Long-term portion	1,814,831
Property Facility Leases
Operating Leases
Remainder of 2022	4,153
2023	5,548
2024	3,810
2025	1,192
2026	964
2027 and thereafter	142,174
Total minimum lease payments	157,841
Less amount representing interest	133,060
Present value of minimum lease payments	24,781
Less current portion	4,306
Long-term portion	20,475
Other
Operating Leases
Remainder of 2022	118
2023	13
2024	0
2025	0
2026	0
2027 and thereafter	0
Total minimum lease payments	131
Less amount representing interest	1
Present value of minimum lease payments	130
Less current portion	130
Long-term portion	$ 0

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