FAIR VALUE OF FINANCIAL INSTRUMENTS (Reconciliation of Warrants Using Level 3 Inputs) (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Reconciliation of the beginning and ending balances of the fair value measurements using significant unobservable inputs (Level 3)
Exercises of Sponsor and Management Warrants	$ 375,613
Level 3
Reconciliation of the beginning and ending balances of the fair value measurements using significant unobservable inputs (Level 3)
Marketability discount due to lapses of restriction period	0
Warrant | Level 3
Reconciliation of the beginning and ending balances of the fair value measurements using significant unobservable inputs (Level 3)
Balance at the beginning of the period	332,170	$ 307,760	$ 307,760
Warrant liability loss	43,443	21,630
Exercises of Sponsor and Management Warrants	$ (375,613)
Balance at the end of the period		$ 329,390	$ 332,170
Expected Volatility (as a percent)			31.00%
Warrant | Minimum | Level 3
Reconciliation of the beginning and ending balances of the fair value measurements using significant unobservable inputs (Level 3)
Discount for lack of marketability (as a percent)			0.00%
Warrant | Maximum | Level 3
Reconciliation of the beginning and ending balances of the fair value measurements using significant unobservable inputs (Level 3)
Discount for lack of marketability (as a percent)			1.00%