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STOCK-BASED COMPENSATION, Summary of Stock Options (Details) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2022 USD ($) Installment Grant $ / shares shares | Mar. 31, 2021 shares | Dec. 31, 2021 shares
Stock-based Compensation [Abstract] |  |  |
Number of stock option grants made | Grant | 2 |  |
Stock Options [Member] |  |  |
Stock-based Compensation [Abstract] |  |  |
Weighted average grant date fair value (in dollars per share) | $ / shares | $ 1.58 |  |
Unamortized stock-based compensation expense | $ | $ 18,500,000 |  |
Weighted average remaining requisite service period | 3 years 21 days |  |
Number of stock option awards outstanding (in shares) | 5,179,000 | 0 | 3,988,000
Number of stock option awards granted (in shares) | 1,258,000 | 0 |
Stock based compensation expense | $ | $ 0 |  |
Stock option exercised (in shares) | 0 | 0 |
Time-Based Non-qualified Stock Option [Member] |  |  |
Stock-based Compensation [Abstract] |  |  |
Number of stock option awards granted (in shares) | 2,628,000 |  |
Number of monthly installments | Installment | 36 |  |
Time-Based Non-qualified Stock Option [Member] | Vesting on one-year Anniversary [Member] |  |  |
Stock-based Compensation [Abstract] |  |  |
Stock-based compensation vesting percentage | 25.00% |  |
Performance-Based Nonqualified Stock Option [Member] |  |  |
Stock-based Compensation [Abstract] |  |  |
Number of stock option awards granted (in shares) | 597,000 |  |
Stock-based compensation grant fair value | $ | $ 4,300,000 |  |

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