XML 79 R33.htm IDEA: XBRL DOCUMENT v3.23.3
Revenue Recognition - Narrative (Details) - USD ($)
$ in Thousands
 6 Months Ended 9 Months Ended
Jun. 30, 2023
Sep. 30, 2023
Dec. 31, 2022
Revenue Recognition [Abstract]      
Contract with Customer, Liability, Current   $ 395,836 $ 379,459
Contract with Customer, Liability, Forward Bookings   34710000000.00%  
Contract with Customer, Liability, Credit Voucher Bookings   4870000000.00%  
Revenue, Performance Obligation, Description of Timing   12 months  
Air Traffic Liability, Recognized $ 379,500    
Contract with Customer, Liability, Passenger Revenue   87.20%