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REVENUE - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Disaggregation of Revenue [Line Items]          
Deferred revenue, revenue recognized $ 9.4 $ 6.2 $ 22.0 $ 14.7  
Unsatisfied performance obligations 49.7   49.7   $ 49.3
Flexible spending account commitment 0.0   0.0   $ 0.2
Amortization of capitalized sales commissions $ 0.9 $ 0.6 $ 2.5 $ 1.5  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-10-01          
Disaggregation of Revenue [Line Items]          
Remaining performance obligation, expected timing of satisfaction, excluding flexible spending account 12 months   12 months    
Unsatisfied performance obligations, excluding flexible spending account commitment $ 28.9   $ 28.9