Intangible Assets, Net

6 Months Ended

Jul. 31, 2012

Finite-Lived Intangible Assets [Abstract]

Intangible Assets, Net

INTANGIBLE ASSETS, NET

Intangible assets, net as of July 31, 2012 and January 31, 2012 were as follows:

	Useful Life	July 31, 2012		January 31, 2012
		(In thousands)
Gross carrying amount:
Intangible assets with finite lives:
Acquired technology	2 to 7 years	$	190,864	$	192,029
Customer relationships	4 to 10 years	260,425		261,338
Trade names	3 to 10 years	16,067		16,224
Non-competition agreements	4 to 10 years	5,762		5,779
Distribution network	10 years	2,440		2,440
Backlog	3 years	843		843
Total intangible assets with finite lives		476,401		478,653
In-process research and development with indefinite lives		2,500		2,500
		478,901		481,153
Accumulated amortization:
Acquired technology		150,245		136,709
Customer relationships		132,678		119,948
Trade names		13,544		13,205
Non-competition agreements		4,057		3,656
Distribution network		1,474		1,352
Backlog		48		19
		302,046		274,889
Total		$	176,855	$	206,264

Amortization of intangible assets was $13.7 million and $27.7 million for the three and six months ended July 31, 2012, respectively, and $12.6 million and $25.3 million for the three and six months ended July 31, 2011, respectively.There was no impairment of intangible assets for the six months ended July 31, 2012 and 2011.

Intangible assets have been retrospectively adjusted as of January 31, 2012 to reflect measurement period adjustments to the purchase price allocations for several business combinations completed during the fiscal year endedJanuary 31, 2012. These adjustments were identified during the three months endedApril 30, 2012, and resulted from new information obtained about facts and circumstances that existed as of the respective acquisition dates. Intangible assets were changed to reduce acquired technology and customer relationships by $0.3 million and $0.4 million, respectively (see Note 5, Business Combinations).