GOODWILL AND INTANGIBLE ASSETS (Finite Lived Intangible Assets) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	Jan. 02, 2015	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Intangible Assets, Net[Abstract]
Amortization of intangibles		$ 1,700	$ 1,500	$ 3,515	$ 3,374
Finite-Lived Intangible Assets, Gross		67,800		67,800		$ 58,780
Finite-Lived Intangible Assets, Accumulated Amortization		(26,772)		(26,772)		(23,256)
Finite-Lived Intangible Assets, Net		41,028		41,028		35,524
Internet Domain Names [Member]
Intangible Assets, Net[Abstract]
Indefinite-Lived Intangible Assets		1,261		1,261		1,261
In-process research and developement [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		(2,775)		(2,775)		(2,625)
Finite-Lived Intangible Assets, Net		225		225		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		(9,752)		(9,752)		(7,828)
Finite-Lived Intangible Assets, Net		23,518		23,518		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		(8,696)		(8,696)		(7,254)
Finite-Lived Intangible Assets, Net		11,334		11,334		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
Minimum [Member]
Intangible Assets, Net[Abstract]
Amortization useful life range				2 years
Maximum [Member]
Intangible Assets, Net[Abstract]
Amortization useful life range				12 years
Cambridge Semiconductor Limited [Member]
Intangible Assets, Net[Abstract]
Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 9,020
Cambridge Semiconductor Limited [Member] | Customer relationships [Member]
Intangible Assets, Net[Abstract]
Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 2,420
Amortization useful life range	5 years			5 years
Cambridge Semiconductor Limited [Member] | Developed technology [Member]
Intangible Assets, Net[Abstract]
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]
Amortization useful life range				3 years
Cambridge Semiconductor Limited [Member] | Developed technology [Member] | Maximum [Member]
Intangible Assets, Net[Abstract]
Amortization useful life range				7 years