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STOCKHOLDER'S EQUITY - Successor Common Stock and Special Warrants (Details) - $ / shares	Sep. 30, 2020	Dec. 31, 2019
Class of Stock [Line Items]
Common stock, shares authorized (in shares)	2,100,000,000
Common stock, shares issued (in shares)	146,392,218
Class A Common Stock
Class of Stock [Line Items]
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	1,000,000,000	1,000,000,000
Common stock, shares issued (in shares)	63,447,152	57,776,204
Class B Common Stock
Class of Stock [Line Items]
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	1,000,000,000	1,000,000,000
Common stock, shares issued (in shares)	6,893,636	6,904,910
Special Warrants
Class of Stock [Line Items]
Common stock, shares issued (in shares)	76,051,430	81,046,593

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Face amount or stated value per share of common stock.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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