v3.24.0.1
Summary of Significant Accounting Policies - Estimated Useful Lives and Residual Values (Details)
$ in Millions
Dec. 31, 2023
USD ($)
aircraft
Aircraft  
Property, Plant and Equipment [Line Items]  
Estimated Useful Life 25 years
Residual Value 20.00%
Inflight entertainment systems  
Property, Plant and Equipment [Line Items]  
Residual Value 0.00%
Aircraft parts  
Property, Plant and Equipment [Line Items]  
Residual Value 10.00%
Flight equipment leasehold improvements  
Property, Plant and Equipment [Line Items]  
Residual Value 0.00%
Ground property and equipment  
Property, Plant and Equipment [Line Items]  
Residual Value 0.00%
Leasehold improvements - other  
Property, Plant and Equipment [Line Items]  
Residual Value 0.00%
Buildings on leased land  
Property, Plant and Equipment [Line Items]  
Residual Value 0.00%
E190  
Property, Plant and Equipment [Line Items]  
Residual Value 12.00%
Airbus A320  
Property, Plant and Equipment [Line Items]  
Number of available aircraft | aircraft 5
Average residual value | $ $ 1.5
Minimum | Inflight entertainment systems  
Property, Plant and Equipment [Line Items]  
Estimated Useful Life 5 years
Minimum | Ground property and equipment  
Property, Plant and Equipment [Line Items]  
Estimated Useful Life 2 years
Minimum | E190  
Property, Plant and Equipment [Line Items]  
Estimated Useful Life 0 years
Minimum | Airbus A320  
Property, Plant and Equipment [Line Items]  
Estimated Useful Life 26 years
Maximum | Inflight entertainment systems  
Property, Plant and Equipment [Line Items]  
Estimated Useful Life 10 years
Maximum | Ground property and equipment  
Property, Plant and Equipment [Line Items]  
Estimated Useful Life 10 years
Maximum | E190  
Property, Plant and Equipment [Line Items]  
Estimated Useful Life 2 years
Maximum | Airbus A320  
Property, Plant and Equipment [Line Items]  
Estimated Useful Life 27 years