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REVENUE RECOGNITION - Changes in Contract Liabilities (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Change in Contract with Customer, Liability [Roll Forward] |  |
Outstanding at December 31, 2020 | $ 983 | $ 955
Decrease attributed to: |  |
Customer loyalty net deferrals |  | 7,370
Customer loyalty redemptions | (983) | (7,342)
Outstanding at December 31, 2021 | $ 0 | $ 983

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