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EQUITY-BASED COMPENSATION - Employee Stock Purchase Plan (ESPP) (Details) - ESPP
3 Months Ended
Mar. 31, 2020
USD ($)
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
offering period 4 years
Issue price (percentage) 95.00%
Maximum annual employees contribution $ 15,000
Cash received for shares issued $ 27,000
Shares issued | shares 4,443
Minimum  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Employee service period 1 year