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LEASES - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
LEASES - Narrative (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Lessee, Lease, Description [Line Items]
Lease cost		$ 37,746	$ 49,840	$ 76,511
Asset impairment charges	$ 20,200
Aircraft
Lessee, Lease, Description [Line Items]
Lease cost		$ 16,800	$ 33,300