EQUITY COMPENSATION (Options) (Details) - Stock Options - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Options
Balance at the beginning of the period (in units)	20,495,025
Granted (in units)	0
Exercised (in units)	0
Expired (in units)	(219,034)
Forfeited (in units)	(444,203)
Balance at the end of the period (in units)	19,831,788	20,495,025
Exercisable at the end of the period (in units)	7,235,214
Weighted Average Exercise Price
Balance at the beginning of the period (in dollars per unit)	$ 18.99
Granted (in dollars per unit)	0.00
Exercised (in dollars per unit)	0
Expired (in dollars per unit)	19.00
Forfeited (in dollars per unit)	19.00
Balance at the end of the period (in dollars per unit)	18.99	$ 18.99
Exercisable at the end of the period (in dollars per unit)	$ 18.99
Weighted Average Remaining Life
Weighted average remaining life		6 years 1 month 2 days
Expected to vest at the end of the period	5 years 10 months 2 days
Exercisable at the end of the period	5 years 4 months 17 days
Aggregate Intrinsic Value
Balance (in dollars)	$ 47,762	$ 20,611
Exercisable at end of the period (in dollars)	17,420
Unrecognized compensation expenses	$ 16,600,000
Weighted average period of compensation expense expected to be recognized	1 year 1 month 9 days