Goodwill and Intangible Assets (Tables)

9 Months Ended

Oct. 27, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets

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

		October 27, 2013							January 27, 2013
(in thousands)	Estimated Useful Life	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Core technologies	2-10 years	$	183,725	$	(58,145	)	$	125,580	$	173,724	$	(40,867	)	$	132,857
Customer relationships	7-10 years	40,130		(11,755		)	28,375		40,130		(7,736		)	32,394
Technology licenses (1)	5-10 years	8,496		(2,268		)	6,228		8,164		(1,056		)	7,108
Other intangibles assets	1-5 years	6,600		(5,721		)	879		6,600		(4,601		)	1,999
Total finite-lived intangible assets		$	238,951	$	(77,889	)	$	161,062	$	228,618	$	(54,260	)	$	174,358

(1) Technology licenses relate to licensing agreements entered into by the Company that are used in research and development activities and have alternative future uses. Amortization expense related to technology licenses is reported as “Product development and engineering” in the unaudited consolidated condensed statements of income.

Future Amortization Expense for Intangible Assets

The estimated annual amount of future amortization expense for all 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 2014	$	439	$	2,217	$	4,950	$	252	$	7,858
Fiscal year 2015	1,512		8,870		19,799		1,007		31,188
Fiscal year 2016	1,501		8,870		19,252		1,007		30,630
Fiscal year 2017	1,251		8,870		19,165		1,007		30,293
Fiscal year 2018	842		8,160		19,165		1,007		29,174
Thereafter	683		8,490		22,664		82		31,919
Total expected amortization expense	$	6,228	$	45,477	$	104,995	$	4,362	$	161,062

Schedule of Indefinite-Lived Intangible Assets

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

	October 27, 2013							January 27, 2013
(in thousands)	Gross Carrying Amount		Accumulated Impairment Loss			Net Carrying Amount		Gross Carrying Amount		Accumulated Impairment Loss			Net Carrying Amount
In-process research and development	$	24,870	$	(5,770	)	$	19,100	$	34,870	$	(3,170	)	$	31,700
Total indefinite-lived intangible assets	$	24,870	$	(5,770	)	$	19,100	$	34,870	$	(3,170	)	$	31,700