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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