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Special Charges - Narrative (Details)
$ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended
Sep. 29, 2023
Aircraft
Sep. 28, 2022
USD ($)
Sep. 30, 2023
Aircraft
Sep. 30, 2023
USD ($)
Mar. 31, 2023
USD ($)
Sep. 30, 2022
USD ($)
Sep. 30, 2023
USD ($)
Sep. 30, 2022
USD ($)
Unusual or Infrequent Item, or Both [Line Items]                
Special charges, net of recoveries             $ 19,400 $ 35,426
Number of aircraft retired | Aircraft 21   2          
Special charges, net of recoveries       $ 32,648   $ 35,142 19,828 $ 35,426
Boeing 2021 Agreement                
Unusual or Infrequent Item, or Both [Line Items]                
Special charges, net of recoveries       15,200        
Hurricane Ian                
Unusual or Infrequent Item, or Both [Line Items]                
Non-operating special charge   $ 52,100            
Additional Non-Operating Special Charge       4,100     4,400  
Special charges, net of recoveries       500 $ 18,100   13,600  
Unusual or infrequent item, or both, insurance proceeds       17,900     18,200  
Special charges, net of recoveries       $ 17,400     4,600  
Insurance recoveries             $ 31,700  
Hurricane Idalia                
Unusual or Infrequent Item, or Both [Line Items]                
Non-operating special charge   $ 13,800