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STOCKHOLDERS’ EQUITY (DEFICIT) - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions |  |  | 4 Months Ended | 8 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
May 30, 2019 | May 01, 2019 | May 01, 2019 | Dec. 31, 2019 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Common stock shares issued (in shares) |  |  |  |  | 145,727,707 | 145,727,707 |  |
Number of securities called by warrants or rights (in shares) |  |  | 81,453,648 | 81,453,648 |  |  |  |
Stock options granted (in shares) |  |  |  |  |  |  | 0 | 0
Employee related charges |  |  | $ 1.5 | $ 1.5 |  |  |  |
Special Warrants |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Common stock shares issued (in shares) |  |  |  |  | 81,046,593 | 81,046,593 |  |
Conversion terms, ownership of capital stock or voting interests, percent |  |  | 22.50% |  |  |  |  |
Exercise price of warrants or rights (in dollars per share) |  |  | $ 0.001 | $ 0.001 |  |  |  |
Conversion terms, ownership of common stock, percent |  |  | 4.99% |  |  |  |  |
Class A Shares |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Common stock shares issued (in shares) |  |  | 56,861,941 | 56,861,941 | 57,776,204 | 57,776,204 | 32,292,944 |
Class B Shares |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Common stock shares issued (in shares) |  |  | 6,947,567 | 6,947,567 | 6,904,910 | 6,904,910 | 555,556 |
Common Stock | Special Warrants |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Conversion of Special Warrants and Class B Shares to Class A Shares (in shares) | [1] |  |  |  | 227,581 |  |  |
Common Stock | Class A Shares |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Conversion of Special Warrants and Class B Shares to Class A Shares (in shares) | [1] |  |  |  | 270,238 |  |  |
Common Stock | Class B Shares |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Conversion of Special Warrants and Class B Shares to Class A Shares (in shares) | [1] |  |  |  | 42,657 |  |  |
Common Stock | Management And Service Providers | Post Emergence Equity Plan | Class A Shares |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Number of shares authorized (in shares) |  |  | 12,770,387 | 12,770,387 |  |  |  |
Common Stock | Director | Post Emergence Equity Plan | Class A Shares |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Number of shares authorized (in shares) |  |  | 1,596,298 | 1,596,298 |  |  |  |
Share-based Payment Arrangement, Option |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Stock options granted (in shares) |  | 5,542,668 |  |  |  |  |  |
Options outstanding (in shares) |  |  | 690,994 | 690,994 |  |  | 690,994 |
Options outstanding, weighted average exercise price (in dollars per share) |  |  |  |  |  |  | $ 33.70 |
Restricted stock units |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Granted (in shares) |  | 3,205,360 |  |  |  |  |  |
Restricted stock awards |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Granted (in shares) |  |  |  |  |  | 3,301,000 |  |
Restricted stock awards, outstanding (in shares) |  |  | 5,129,593 | 5,129,593 | 2,648,000 | 2,648,000 | 5,258,526 |
Restricted stock awards, weighted average grant date fair value (in dollars per share) |  |  |  |  | $ 16.47 | $ 16.47 | $ 3.74 |
Restricted stock awards, vested in period (in shares) |  |  |  | 18,600 |  | 644,000 |  |
Restricted stock awards, vested in period, weighted average grant date fair value (in dollars per share) |  |  |  | $ 1.42 |  | $ 16.48 |  |
Restricted stock awards, forfeited in period (in shares) |  |  |  | 110,333 |  | 9,000 |  |
Restricted stock awards, forfeited in period, weighted average grant date fair value (in dollars per share) |  |  |  | $ 3.16 |  | $ 16.50 |  |
Vest based solely on continued service | Share-based Payment Arrangement, Option |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Options outstanding, vesting percentage |  |  |  |  |  | 20.00% |  | 75.00%
Vest based solely on continued service | Restricted stock units |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Options outstanding, vesting percentage |  |  |  |  |  | 20.00% |  |
Vest if certain predetermined performance targets are met | Share-based Payment Arrangement, Option |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Options outstanding, vesting percentage |  |  |  |  |  | 20.00% |  | 25.00%
Vest if certain predetermined performance targets are met | Restricted stock units |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Options outstanding, vesting percentage |  |  |  |  |  | 20.00% |  |
[1] | The Company's Class D Common Stock and Preferred Stock are not presented in the data above as there were no shares issued and outstanding in 2018, 2017 and 2016, respectively.

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