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Special Charges - Narrative (Details) $ in Thousands	1 Months Ended	3 Months Ended		12 Months Ended
	Sep. 30, 2023 Aircraft	Dec. 31, 2024 USD ($)	Sep. 30, 2024 USD ($)	Dec. 31, 2024 USD ($) Aircraft	Dec. 31, 2023 USD ($) Aircraft	Dec. 31, 2022 USD ($)	Apr. 30, 2024
Unusual or Infrequent Item, or Both [Line Items]
Number Of Aircraft Retired | Aircraft	21			7	2
Airline special charges				$ 45,307	$ 35,091	$ 567
Collective bargaining agreement, term							5 years
Organizational Restructuring
Unusual or Infrequent Item, or Both [Line Items]
Airline special charges		$ 3,420	$ 3,400		0	0
Sunseeker Resort
Unusual or Infrequent Item, or Both [Line Items]
Sunseeker impairment		$ 321,837		321,800	$ 0	$ 0
Hurricane Ian
Unusual or Infrequent Item, or Both [Line Items]
Accelerated depreciation on airframes identified for early retirement				87,200
Sunseeker impairment				(58,600)
Hurricanes Milton, Debby And Helene
Unusual or Infrequent Item, or Both [Line Items]
Accelerated depreciation on airframes identified for early retirement				$ 7,700

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