SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - shares	Sep. 30, 2021	Dec. 31, 2020
Class of Stock [Line Items]
Common stock, shares outstanding (in shares)	289,875,333	259,631,180
Class A Common Stock
Class of Stock [Line Items]
Common stock, shares outstanding (in shares)	167,581,165	147,182,562
Class A Common Stock | Ares Acquisition Corporation
Class of Stock [Line Items]
Common stock, shares outstanding (in shares)	100,000,000