OPERATING AND GEOGRAPHICAL SEGMENTS - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Segment Reporting Information [Line Items]
Net revenue	$ 306,353	$ 355,534	$ 624,641	$ 692,895
Segment income from operations	35,198	40,746	75,884	70,816
Micro-Controllers
Segment Reporting Information [Line Items]
Net revenue	205,003	254,775	423,789	489,915
Segment income from operations	11,152	30,326	34,908	49,152
Nonvolatile Memories
Segment Reporting Information [Line Items]
Net revenue	43,153	40,180	86,901	75,832
Segment income from operations	10,068	8,036	21,738	13,083
RF and Automotive
Segment Reporting Information [Line Items]
Net revenue	37,216	35,994	72,961	76,965
Segment income from operations	6,098	3,284	9,395	10,038
Multi-market and other
Segment Reporting Information [Line Items]
Net revenue	20,981	24,585	40,990	50,183
Segment income from operations	$ 7,880	$ (900)	$ 9,843	$ (1,457)