OPERATING AND GEOGRAPHICAL SEGMENTS - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Segment Reporting Information [Line Items]
Net revenue	$ 286,533	$ 374,485	$ 911,174	$ 1,067,380
Segment income from operations	36,231	54,864	112,115	125,680
Micro-Controllers
Segment Reporting Information [Line Items]
Net revenue	201,061	264,432	624,850	754,348
Segment income from operations	21,712	36,996	56,620	86,148
Nonvolatile Memories
Segment Reporting Information [Line Items]
Net revenue	34,188	46,908	121,089	122,739
Segment income from operations	2,782	11,329	24,520	24,413
RF and Automotive
Segment Reporting Information [Line Items]
Net revenue	34,158	37,273	107,119	114,238
Segment income from operations	5,473	5,689	14,868	15,727
Multi-market and other
Segment Reporting Information [Line Items]
Net revenue	17,126	25,872	58,116	76,055
Segment income from operations	$ 6,264	$ 850	$ 16,107	$ (608)