XML 81 R67.htm IDEA: XBRL DOCUMENT v3.25.1
Material accounting policies - Estimated Useful Lives of Assets and Considering Residual Value (Detail)
 12 Months Ended
Dec. 31, 2024
Airframe and core engines  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimate useful life (years) 27 years
Residual Value 0.15
Major maintenance events | Bottom of range  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimate useful life (years) 3 years
Major maintenance events | Top of range  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimate useful life (years) 16 years
Conversion to freighter  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimate useful life (years) 10 years
Estimated useful lives Lesser of 10 years and remaining useful life of the aircraft
Cabin refurbishment  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimated useful lives Lesser of remaining useful life of the aircraft and estimated useful life of the refurbishment
Ground equipment  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimate useful life (years) 10 years
Furniture, fixture, equipment and other | Bottom of range  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimate useful life (years) 5 years
Furniture, fixture, equipment and other | Top of range  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimate useful life (years) 10 years
Leasehold improvements  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimated useful lives Lesser of remaining lease term and estimated useful life of the leasehold improvement