OPERATING AND GEOGRAPHICAL SEGMENTS - Reconciliation of Segment Information to Consolidated Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended
	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Segment Reporting [Abstract]
Segment income from operations	$ 36,231			$ 54,864	$ 112,115	$ 125,680
Unallocated amounts:
Allocated Share-based Compensation Expense	12,719			14,917	38,943	45,812
Loss from manufacturing facility damage and shutdown	0			3,571	0	(3,485)
Acquisition-related charges	2,390			7,162	10,600	10,287
French building underutilization	500			822	714	3,284
Restructuring Charges	(584)	$ 4,882	$ 1,147	840	5,445	(967)
Gain from foundry arrangement	(2,487)			454	(4,444)	2,583
ImpairmentOfRecivablesDueFromFoundry	0			1,548	0	1,548
Loss (gain) on sale of assets	(427)			0	1,626	0
MergerRelatedCost	(7,818)			0	(7,818)	0
Income from operations	$ 10,474			$ 33,600	$ 45,777	$ 64,814