STOCKHOLDERS' EQUITY AND SHARE-BASED COMPENSATION EXPENSE SHARE-BASED COMPENSATION PLANS NARRATIVE (Details) shares in Millions, $ in Millions	9 Months Ended
	Sep. 30, 2015 USD ($) shares
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Common stock reserved for future issuance (in shares)	5.1
Unrecognized share-based compensation expense | $	$ 21.2
Weighted-average term of unrecognized share-based compensation expense, stock options	2 years 3 months 7 days
Weighted-average term of unrecognized share-based compensation expense, restricted stock	2 years 2 months 16 days