GOODWILL AND INTANGIBLE ASSETS (Finite Lived Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Aug. 31, 2015	Jan. 02, 2015	Dec. 31, 2014
Intangible Assets, Net[Abstract]
Finite-Lived Intangible Assets, Gross	$ 68,460		$ 68,460				$ 58,780
Amortization of intangibles	1,700	$ 1,300	5,247	$ 4,723
Finite-Lived Intangible Assets, Accumulated Amortization	(28,503)		(28,503)				(23,256)
Finite-Lived Intangible Assets, Net	39,957		39,957				35,524
Internet Domain Names [Member]
Intangible Assets, Net[Abstract]
Indefinite-Lived Intangible Assets	1,261		1,261				1,261
In Process Research and Development [Member]
Intangible Assets, Net[Abstract]
Finite-Lived Intangible Assets, Gross	4,690		4,690				4,690
Finite-Lived Intangible Assets, Accumulated Amortization	0		0				0
Finite-Lived Intangible Assets, Net	4,690		4,690				4,690
Technology licenses [Member]
Intangible Assets, Net[Abstract]
Finite-Lived Intangible Assets, Gross	3,000		3,000				3,000
Finite-Lived Intangible Assets, Accumulated Amortization	(2,850)		(2,850)				(2,625)
Finite-Lived Intangible Assets, Net	150		150				375
Patents [Member]
Intangible Assets, Net[Abstract]
Finite-Lived Intangible Assets, Gross	1,949		1,949				1,949
Finite-Lived Intangible Assets, Accumulated Amortization	(1,949)		(1,949)				(1,949)
Finite-Lived Intangible Assets, Net	0		0				0
Developed technology [Member]
Intangible Assets, Net[Abstract]
Finite-Lived Intangible Assets, Gross	33,270		33,270				26,670
Finite-Lived Intangible Assets, Accumulated Amortization	(10,708)		(10,708)				(7,828)
Finite-Lived Intangible Assets, Net	22,562		22,562				18,842
Customer relationships [Member]
Intangible Assets, Net[Abstract]
Finite-Lived Intangible Assets, Gross	20,030		20,030				17,610
Finite-Lived Intangible Assets, Accumulated Amortization	(9,366)		(9,366)				(7,254)
Finite-Lived Intangible Assets, Net	10,664		10,664				10,356
Trade Names [Member]
Intangible Assets, Net[Abstract]
Finite-Lived Intangible Assets, Gross	3,600		3,600				3,600
Finite-Lived Intangible Assets, Accumulated Amortization	(3,600)		(3,600)				(3,600)
Finite-Lived Intangible Assets, Net	0		0				0
Leases, Acquired-in-Place [Member]
Intangible Assets, Net[Abstract]
Finite-Lived Intangible Assets, Gross	660		660				0
Finite-Lived Intangible Assets, Accumulated Amortization	(30)		(30)				0
Finite-Lived Intangible Assets, Net	$ 630		$ 630				$ 0
Minimum [Member]
Intangible Assets, Net[Abstract]
Estimated Useful Life (in years)			2 years
Maximum [Member]
Intangible Assets, Net[Abstract]
Estimated Useful Life (in years)			12 years
Cambridge Semiconductor Limited [Member]
Intangible Assets, Net[Abstract]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles						$ 9,020
Cambridge Semiconductor Limited [Member] | Developed technology [Member]
Intangible Assets, Net[Abstract]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles						6,600
Cambridge Semiconductor Limited [Member] | Developed technology [Member] | Minimum [Member]
Intangible Assets, Net[Abstract]
Estimated Useful Life (in years)			3 years
Cambridge Semiconductor Limited [Member] | Developed technology [Member] | Maximum [Member]
Intangible Assets, Net[Abstract]
Estimated Useful Life (in years)			7 years
Cambridge Semiconductor Limited [Member] | Customer relationships [Member]
Intangible Assets, Net[Abstract]
Estimated Useful Life (in years)			5 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles						$ 2,420
Building [Member]
Intangible Assets, Net[Abstract]
Estimated Useful Life (in years)			2 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles					$ 700
Building [Member] | Leases, Acquired-in-Place [Member]
Intangible Assets, Net[Abstract]
Estimated Useful Life (in years)			2 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles					$ 700