Goodwill and Intangible Assets (Tables)

6 Months Ended

Jul. 29, 2012

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill Balances

Goodwill balances as of July 29, 2012 and January 29, 2012 are presented below:

(in thousands)	Carrying Amount
Balance as of January 29, 2012	$	129,651
Acquisition of Gennum Corporation	258,386
Acquisition of Cycleo SAS	2,042
Balance as of July 29, 2012	$	390,079

Schedule of Finite-Lived Intangible Assets

The following table sets forth the Company’s finite-lived intangible assets resulting from business acquisitions, which continue to be amortized:

(in thousands)		July 29, 2012							January 29, 2012
	Estimated Useful Life	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Core technologies	2-10 years	$	167,124	$	(29,822	)	$	137,302	$	65,900	$	(21,031	)	$	44,869
Customer relationships	7-10 years	40,130		(5,058		)	35,072		12,130		(2,929		)	9,201
Technology licenses (1)	5 years	3,000		(550		)	2,450		3,000		(250		)	2,750
Other intangibles assets	1-5 years	6,724		(1,934		)	4,790		—		—			—
Total finite-lived intangible assets		$	216,978	$	(37,364	)	$	179,614	$	81,030	$	(24,210	)	$	56,820

(1) Technology licenses relate to licensing agreements entered into by the Company. Amortization expense related to technology licenses is reported as “Product development and engineering” in the Unaudited Consolidated Condensed Statements of Income.

Schedule of Indefinite-Lived Intangible Assets

The following table sets forth the Company’s indefinite-lived intangible assets resulting from business acquisitions:

(in thousands)	July 29, 2012							January 29, 2012
	Gross Carrying Amount		Accumulated Impairment Loss			Net Carrying Amount		Gross Carrying Amount		Accumulated Impairment Loss			Net Carrying Amount
In-process research and development	$	47,470	$	(3,170	)	$	44,300	$	12,370	$	(2,470	)	$	9,900
Total indefinite-lived intangible assets	$	47,470	$	(3,170	)	$	44,300	$	12,370	$	(2,470	)	$	9,900

Future Amortization Expense for Intangible Assets

The estimated annual amount of future amortization expense for finite-lived intangible assets will be as follows:

(in thousands)
To be recognized in:	Technology license		Sierra Monolithics		Gennum		Cycleo		Total
Remainder of fiscal year 2013	$	300	$	4,105	$	11,416	$	538	$	16,359
Fiscal year 2014	600		8,210		18,778		1,007		28,595
Fiscal year 2015	600		8,210		18,132		1,007		27,949
Fiscal year 2016	600		8,210		17,586		1,007		27,403
Fiscal year 2017	350		8,210		17,499		1,007		27,066
Thereafter	—		13,020		38,133		1,089		52,242
Total expected amortization expense	$	2,450	$	49,965	$	121,544	$	5,655	$	179,614