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Commitments and Contingencies - Narrative (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2022
USD ($)
aircraft
Dec. 31, 2021
USD ($)
Long-term Purchase Commitment [Line Items]    
Purchase obligation $ 25,537,768  
Minimum aircraft delivery delays that could trigger lessee cancellation clauses 1 year  
Purchase agreements, termination commencement period 1 year  
Non-refundable deposits on aircraft $ 1,344,973 $ 1,508,892
Aircrafts    
Long-term Purchase Commitment [Line Items]    
Purchase commitment, number of aircraft | aircraft 398  
Non-refundable deposits on aircraft $ 1,300,000 $ 1,500,000