ACQUISITIONS Intangible Assets Acquired (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Jun. 23, 2015
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		$ 37,200
Core and completed technology [Member]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	4 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		31,200
Customer Relationships [Member]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	4 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		5,800
Trade Names [Member]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	1 year
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		$ 200