GOODWILL AND INTANGIBLE ASSETS (Narrative) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Indefinite-lived Intangible Assets [Line Items]
Patent and trademark fees	$ 0.8	$ 1.0
Net intangible assets	$ 94.9
Minimum
Indefinite-lived Intangible Assets [Line Items]
Intangible assets useful life (in years)	1 year
Maximum
Indefinite-lived Intangible Assets [Line Items]
Intangible assets useful life (in years)	20 years
Domain Names
Indefinite-lived Intangible Assets [Line Items]
Intangible assets with indefinite lives	$ 0.4
Trademarks
Indefinite-lived Intangible Assets [Line Items]
Intangible assets with indefinite lives	$ 1.1