Commitments and Contingencies - Employees (Details)	3 Months Ended
	Mar. 31, 2024 employeeGroup employee
Aircraft Mechanics Fraternal Association (AMFA)
Concentration Risk [Line Items]
Number of employees included in union application (approximately) | employee	700
Unionized Employees Concentration Risk | Number of Employees, Total
Concentration Risk [Line Items]
Number of union-represented employee groups | employeeGroup	6
Company's employees covered under collective bargaining agreements percentage	85.00%
Unionized Employees Concentration Risk | Number of Employees, Total | Air Line Pilots Association, International ("ALPA")
Concentration Risk [Line Items]
Company's employees covered under collective bargaining agreements percentage	28.00%
Unionized Employees Concentration Risk | Number of Employees, Total | Association of Flight Attendants ("AFA-CWA")
Concentration Risk [Line Items]
Company's employees covered under collective bargaining agreements percentage	44.00%
Unionized Employees Concentration Risk | Number of Employees, Total | Professional Airline Flight Control Association ("PAFCA")
Concentration Risk [Line Items]
Company's employees covered under collective bargaining agreements percentage	1.00%
Unionized Employees Concentration Risk | Number of Employees, Total | International Association of Machinists and Aerospace Workers ("IAMAW")
Concentration Risk [Line Items]
Company's employees covered under collective bargaining agreements percentage	3.00%
Unionized Employees Concentration Risk | Number of Employees, Total | Transport Workers Union of America ("TWU")
Concentration Risk [Line Items]
Company's employees covered under collective bargaining agreements percentage	3.00%
Unionized Employees Concentration Risk | Number of Employees, Total | Aircraft Mechanics Fraternal Association (AMFA)
Concentration Risk [Line Items]
Company's employees covered under collective bargaining agreements percentage	6.00%