OPERATING AND GEOGRAPHICAL SEGMENTS (Reconciliation of Segment Information to Consolidated Statements of Operations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Unallocated Amounts [Abstract]
Stock-based compensation expense	$ (51,392)	$ (59,679)	$ (43,124)
Acquisition-related charges	(12,526)	(13,767)	(5,534)
Restructuring charges	(4,595)	(13,882)	(50,026)
Impairment of XSense assets	0	(26,624)	(7,502)
Merger expenses and other	11,600
Gain on sale of assets	1,626	4,364	4,430
Consolidated income (loss) from operations	50,761	59,231	(2,472)
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Total segment income from operations	136,626	178,641	123,356
Unallocated Amounts [Abstract]
Stock-based compensation expense	(51,392)	(59,679)	(43,124)
Loss from manufacturing facility damage and shutdown	0	(3,485)	(2,205)
Acquisition-related charges	(12,526)	(13,767)	(5,534)
French building underutilization and other	(1,522)	(2,957)	(945)
Restructuring charges	(4,595)	(13,882)	(50,026)
(Loss) gain related to foundry arrangements	(5,825)	2,583	(7,424)
Recovery of receivables due from foundry supplier	0	485	600
Fair value adjustments to inventory from businesses acquired	0	(2,322)	0
Impairment of XSense assets	0	(26,624)	0
Writeoff of uncollectible receivable	0	(4,126)	0
Settlement charges	0	0	(21,600)
Merger expenses and other	(11,631)	0	0
Gain on sale of assets	1,626	4,364	4,430
Consolidated income (loss) from operations	$ 50,761	$ 59,231	$ (2,472)