GOODWILL AND INTANGIBLE ASSETS (Intangible Assets Amortization Expense) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	$ 6,072		$ 7,404	$ 5,164
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
2015	5,009
2016	4,394
2017	3,994
2018	3,746
2019	3,424
Thereafter	9,006
Total	29,573	[1]
Developed technology [Member]
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
Total	18,842		21,423
Customer relationships [Member]
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
Total	10,356		12,946
Trade names [Member]
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
Total	0		600
Patent rights [Member]
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
Total	$ 0		$ 0

[1] The total above excludes $4.7 million of in-process research and development which will be amortized upon completion of development over the estimated useful life of the technology.