Leases - Finance and Operating Lease Maturities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Finance Leases
Remainder of 2023	$ 203
2024	251
2025	154
2026	76
2027	27
2028 and thereafter	0
Total minimum lease payments	711
Less amount representing interest	41
Present value of minimum lease payments	670
Less current portion	331
Long-term portion	339
Operating Leases
Less current portion	201,337	$ 188,296
Long-term portion	2,793,437	$ 2,455,619
Total Operating and Finance Lease Obligations
Remainder of 2023	195,290
2024	377,426
2025	360,144
2026	333,601
2027	317,013
2028 and thereafter	3,189,934
Total minimum lease payments	4,773,408
Less amount representing interest	1,777,964
Present value of minimum lease payments	2,995,444
Less current portion	201,668
Long-term portion	$ 2,793,776
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration]	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
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Long-term debt, net and finance leases, less current maturities
Aircraft and Spare Engine Leases
Operating Leases
Remainder of 2023	$ 191,146
2024	370,793
2025	355,905
2026	329,591
2027	313,882
2028 and thereafter	3,048,636
Total minimum lease payments	4,609,953
Less amount representing interest	1,644,731
Present value of minimum lease payments	2,965,222
Less current portion	195,680
Long-term portion	2,769,542
Property Facility Leases
Operating Leases
Remainder of 2023	3,588
2024	6,205
2025	4,085
2026	3,934
2027	3,104
2028 and thereafter	141,298
Total minimum lease payments	162,214
Less amount representing interest	133,179
Present value of minimum lease payments	29,035
Less current portion	5,140
Long-term portion	23,895
Other
Operating Leases
Remainder of 2023	353
2024	177
2025	0
2026	0
2027	0
2028 and thereafter	0
Total minimum lease payments	530
Less amount representing interest	13
Present value of minimum lease payments	517
Less current portion	517
Long-term portion	$ 0

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