EQUITY-BASED COMPENSATION - Stock options (Details) shares in Thousands	3 Months Ended
	Mar. 31, 2021 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options forfeited (in shares)	235
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options term	5 years
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options term	10 years