COMMITMENTS AND CONTINGENCIES (Narrative) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2015 USD ($) Employee	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Long-term Purchase Commitment [Line Items]
Total rental expense	$ 25.8	$ 27.3	$ 24.4
Capital Addition Purchase Commitments [Member]
Long-term Purchase Commitment [Line Items]
Capital purchase commitment	2.2
Wafer Purchase Commitment [Member]
Long-term Purchase Commitment [Line Items]
Capital purchase commitment	$ 21.8
Minimum [Member]
Long-term Purchase Commitment [Line Items]
Product Warranty Period	30 days
Maximum [Member]
Long-term Purchase Commitment [Line Items]
Product Warranty Period	3 years
LFoundry Rousset S.A.S. [Member]
Long-term Purchase Commitment [Line Items]
Loss Contingency, Number of Plaintiffs | Employee	500