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Lease (Details)
$ in Thousands
 12 Months Ended
Mar. 31, 2021
Aircraft
Dec. 31, 2021
USD ($)
Aircraft
Dec. 31, 2020
USD ($)
Aircraft
Dec. 31, 2019
USD ($)
Leases [Abstract]        
Capital Leased Assets, Number of Units | Aircraft   15    
Operating Leased Assets, Number Of Units | Aircraft   17    
operating right of use asset, net   $ 130,087 $ 115,911  
Finance Lease, Right-of-Use Asset   338,469 133,175  
Total Right-of-Use Asset   468,556 249,086  
Accrued liabilities   19,081 14,313  
Finance Lease, Liability, Current   16,960 9,767  
Noncurrent operating lease liabilities   115,067 102,289  
Finance Lease, Liability, Noncurrent   301,532 117,060  
Total Lease Liability   $ 452,640 $ 243,429  
Operating Lease, Weighted Average Discount Rate, Percent   5.40% 5.40%  
Finance Lease, Weighted Average Discount Rate, Percent   5.20% 5.00%  
Operating Lease, Weighted Average Remaining Lease Term   7 years 8 months 12 days 8 years 3 months 18 days  
Finance Lease, Weighted Average Remaining Lease Term   7 years 9 months 18 days 7 years 7 months 6 days  
Number of Aircraft In Sale-Leaseback Transactions | Aircraft 3 8 8  
Proceeds from sale-leaseback transactions   $ 0 $ 87,580 $ 0
Sale and Leaseback Transaction, Gain (Loss), Net   53,200    
Sale Leaseback Transaction, Net Proceeds, Financing Activities   $ 105,000