REVENUE RECOGNITION - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Disaggregation of Revenue [Line Items]
Revenue	$ 189,637	$ 196,285	$ 367,167	$ 393,386
Services transferred at a point in time: \| Flights, net of discounts and incentives
Disaggregation of Revenue [Line Items]
Revenue	158,330	163,684	305,898	314,613
Services transferred at a point in time: \| Other
Disaggregation of Revenue [Line Items]
Revenue	22,827	16,162	42,611	44,946
Services transferred over time: \| Memberships
Disaggregation of Revenue [Line Items]
Revenue	7,474	16,046	16,663	32,900
Services transferred over time: \| Other
Disaggregation of Revenue [Line Items]
Revenue	$ 1,006	$ 393	$ 1,995	$ 927

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details

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