COMMITMENTS AND CONTINGENCIES - Narrative (Details)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Defined Contribution Plan Disclosure [Line Items]
Defined contribution match		6.00%	4.00%	4.00%
Discretionary profit-sharing contribution			2.00%
Forecast
Defined Contribution Plan Disclosure [Line Items]
Defined contribution match	6.00%