PURCHASED INTANGIBLE ASSETS (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Purchased intangible assets
Gross	$ 57,585	$ 63,078
Accumulated Amortization	(34,018)	(36,344)
Net	23,567us-gaap_FiniteLivedIntangibleAssetsNet	26,734us-gaap_FiniteLivedIntangibleAssetsNet
Core technology
Purchased intangible assets
Gross	18,456	20,667
Accumulated Amortization	(6,805)	(7,360)
Net	11,651	13,307
Customer relationships
Purchased intangible assets
Gross	37,151	40,195
Accumulated Amortization	(25,644)	(27,270)
Net	11,507	12,925
Trademarks / Trade names
Purchased intangible assets
Gross	1,978	2,216
Accumulated Amortization	(1,569)	(1,714)
Net	$ 409	$ 502

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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