SHARE-BASED COMPENSATION Share Based Compensation Options Rollfoward (Details) - USD ($) $ / shares in Units, $ in Millions	9 Months Ended		12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value			$ 0.5
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	7 years 1 month		4 years 8 months
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number of options, Balance	543,377
Number of options, Granted	522,250
Number of options, Exercised	(50,000)	(400,000)
Number of options, Balance	1,015,627		543,377
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Weighted average exercise price, Balance	$ 25.40
Weighted average exercise price, Granted	21.25
Weighted average exercise price, Exercised	19.60
Weighted average exercise price, Balance	23.55		$ 25.40
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted average grant date fair value, Balance	10.17
Weighted average grant date fair value, Granted	9.63	$ 8.71
Weighted average grant date fair value, Exercised	10.18
Weighted average grant date fair value, Balance	$ 9.89		$ 10.17