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EQUITY-BASED COMPENSATION (Details) - shares |  | 12 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 20, 2016 | Dec. 31, 2020 | May 08, 2020 | Nov. 01, 2017
Class A-1 Common Stock | Private Placement |  |  |  |
EQUITY-BASED COMPENSATION |  |  |  |
Shares issued | 16,100,000 |  |  |
2016 plan |  |  |  |
EQUITY-BASED COMPENSATION |  |  |  |
Maximum number of shares |  | 3,800,000 |  | 13,300,000
2016 plan | Maximum |  |  |  |
EQUITY-BASED COMPENSATION |  |  |  |
Equity options term |  | 10 years |  |
Second Amendment to the 2016 Plan [Member] | Class A Common Stock |  |  |  |
EQUITY-BASED COMPENSATION |  |  |  |
Maximum number of shares |  |  | 4,000,000 |

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