EQUITY AND EARNINGS PER SHARE - Schedule of Warrants (Details) - Share-based Payment Arrangement, Nonemployee - Stock options and common stock purchase warrants shares in Millions	9 Months Ended
	Sep. 30, 2021 $ / shares shares
Number of Warrants (in millions)
Beginning balance (in shares) | shares	43.4
Granted (in shares) | shares	0.0
Exercised (in shares) | shares	0.0
Expired (in shares) | shares	0.0
Ending balance (in shares) | shares	43.4
Weighted Average Exercise Price (per share)
Beginning balance (in dollars per share)	$ 6.79
Granted (in dollars per share)	0
Exercised (in dollars per share)	0
Expired (in dollars per share)	0
Ending balance (in dollars per share)	6.58
Warrant, exercise price, decrease (in dollars per share)	$ 0.10