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Impact of the COVID-19 Pandemic - Narrative (Details)
$ / shares in Units, $ in Thousands
 3 Months Ended
Mar. 31, 2022
USD ($)
Aircraft
Mar. 31, 2021
USD ($)
Aircraft
engine
Apr. 23, 2021
USD ($)
shares
Dec. 24, 2020
$ / shares
Unusual or Infrequent Item, or Both [Line Items]        
Total special charges $ 142 $ 1,738    
Other Aircraft Related Costs $ 100 $ 1,200    
Number of Aircraft Retired | Aircraft 1      
Number of Engines Retired | engine   3    
Other Expenses   $ 500    
Airbus A320 Aircraft Series        
Unusual or Infrequent Item, or Both [Line Items]        
Number of Aircraft Retired | Aircraft   2    
Payroll Support Program Grant Extension        
Unusual or Infrequent Item, or Both [Line Items]        
Total Proceeds from Payroll Support Program Grant $ 91,800      
Additional Proceeds Received from Payroll Support Program     $ 13,800  
Debt Instrument, Face Amount     $ 1,700  
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares     924  
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares       $ 179.23
Payroll Support Program 3        
Unusual or Infrequent Item, or Both [Line Items]        
Total Proceeds from Payroll Support Program Grant $ 98,400