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Leases (Details)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
USD ($)
Aircraft
Dec. 31, 2021
USD ($)
Leases [Abstract]    
operating right of use asset, net $ 125,616 $ 130,087
Finance Lease, Right-of-Use Asset, after Accumulated Amortization 407,745 338,469
Total Right-of-Use Asset 533,361 468,556
Current operating lease liabilities 19,314 19,081
Finance Lease, Liability, Current 34,405 16,960
Noncurrent operating lease liabilities 110,210 115,067
Finance Lease, Liability, Noncurrent 349,011 301,532
Total Lease Liability $ 512,940 $ 452,640
Operating Leased Assets, Number of Units | Aircraft 17  
Finance Leased Assets, Number of Units | Aircraft 18