ACQUISITION OF HAWAIIAN HOLDINGS, INC. - Pro Forma Impact Of Acquisition (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Business Combination, Pro Forma Information [Line Items]
Net loss	$ 166,000	$ 132,000
Hawaiian Holdings, Inc.
Business Combination, Pro Forma Information [Line Items]
Revenue	3,137,000	2,877,000
Net loss	$ (138,000)	(267,000)
Hawaiian Holdings, Inc. | Business Combination, Pro Forma Information, Nonrecurring Adjustment, Acquisition-Related Cost
Business Combination, Pro Forma Information [Line Items]
Net loss		$ 267,000