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Flight Equipment Held for Sale - Schedule of Flight Equipment Held for Sale (Details) - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment [Roll Forward]    
Flight equipment subject to operating leases reclassified to flight equipment held for sale $ 1,143,096 $ 1,411,564
Flight Equipment    
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment [Roll Forward]    
Flight equipment subject to operating leases reclassified to flight equipment held for sale 1,143,097  
Disposal Group, Held-for-sale, Not Discontinued Operations | Flight Equipment    
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment [Roll Forward]    
Flight equipment held for sale, beginning balance 605,104  
Flight equipment subject to operating leases reclassified to flight equipment held for sale 1,143,097  
Aircraft sales (1,007,111)  
Flight equipment held for sale, ending balance $ 741,090