STOCK-BASED COMPENSATION - Summary of PBO Outstanding (Details) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Performance-Based Options
Forfeited (in shares)	0	0
2014 Long Term Incentive Plan | Performance-Based Options
Performance-Based Options
Outstanding (in shares)	167,619,000	167,619
Granted (in shares)	0	0
Forfeited (in shares)	0	0
Outstanding (in shares)	167,619,000	167,619,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Outstanding (in dollars per share)	$ 14.51	$ 14.51
Forfeited (in dollars per share)
Outstanding (in dollars per share)	$ 14.51	$ 14.51