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REVENUE RECOGNITION - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Capitalized Contract Cost [Line Items] |  |  |  |  |
Deferred contract acquisition costs | $ 4.0 |  | $ 4.0 |  | $ 5.9
Amortization of deferred contract costs | 1.8 | $ 2.7 | 6.2 | $ 8.3 |
Variable consideration from unredeemed vouchers sold in prior periods | $ 5.2 | $ 7.4 | $ 6.2 | $ 9.4 |
Minimum |  |  |  |  |
Capitalized Contract Cost [Line Items] |  |  |  |  |
Deferred contract acquisition cost recognition period | 12 months |  | 12 months |  |
Maximum |  |  |  |  |
Capitalized Contract Cost [Line Items] |  |  |  |  |
Deferred contract acquisition cost recognition period | 18 months |  | 18 months |  |

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