Goodwill and Intangible Assets (Tables)

12 Months Ended

Jan. 25, 2015

Schedule of Goodwill and Intangible Assets [Line Items]

Changes in the carrying amount of goodwill by applicable reporting unit were as follows:



(in thousands)	Signal Integrity		Gennum ⁽¹⁾			Advanced Communications ⁽¹⁾			Wireless, Sensing & Timing		Total
Balance as of January 27, 2013	$	—	$	261,891		$	116,686		$	15,007	$	393,584
Impairments	—		—			(116,686		)	—		(116,686		)
Transfers	261,891		(261,891		)	—			—		—
Balance as of January 26, 2014	$	261,891	$	—		$	—		$	15,007	$	276,898
Acquisitions	—		—			—			3,421		3,421
Balance as of January 26, 2015	$	261,891	$	—		$	—		$	18,428	$	280,319

(1)

In the fourth quarter of fiscal year 2014, the Gennum and former Advanced Communications reporting units were integrated to form the new reporting unit Signal Integrity and Timing, which in the first quarter of fiscal 2015 became the new reporting unit Signal Integrity with Timing becoming a part of Wireless, Sensing and Timing. There were no transfers of goodwill associated with the fiscal 2015 realignment.

Schedule of discounted cash flow inputs



	November 30, 2013	November 30, 2014
Discount rate	11.0% - 14.0%	12.0% - 15.0%
Perpetual growth rate	3.0%	3.0%
Tax rate	13.4% - 18.0%	10.1% - 28.1%
Risk-free rate	3.5%	2.6%
Peer company beta	1.0 - 1.5	1.0 - 1.8

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:



		January 25, 2015							January 26, 2014
(in thousands)	Estimated Useful Life	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Core technologies	6-8 years	$	134,155	$	(53,286	)	$	80,869	$	146,925	$	(35,357	)	$	111,568
Customer relationships	7-10 years	28,030		(11,480		)	16,550		28,630		(7,505		)	21,125
Technology licenses ⁽¹⁾	2 years	263		(169		)	94		3,842		(367		)	3,475
Other intangibles assets	1-5 years	6,600		(6,513		)	87		6,600		(5,824		)	776
Total finite-lived intangible assets		$	169,048	$	(71,448	)	$	97,600	$	185,997	$	(49,053	)	$	136,944


(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 consolidated statements of operations.

Schedule of finite-lived intangible assets impairment loss

Impairment charges for these items, which resulted in a new basis for the affected intangible assets, are included in the consolidated statements of operations as follows:



(in thousands)	January 25, 2015		January 26, 2014		January 27, 2013
Product development and engineering	$	3,119	$	2,354	$	—
Intangible asset impairments	11,636		29,938		700
Impairment of finite-lived intangible assets	$	14,755	$	32,292	$	700

Additions to finite-lived intangible assets

The following table sets forth the Company’s additions to finite-lived intangible assets resulting from purchases, additions from acquisitions, and transfers from IPR&D:



(in thousands)	Gross Carrying Amount
Gross carrying value at January 27, 2013	$	228,618
Purchased intangible assets	833
Reduction of finite-lived intangible assets	(501		)
Transfers from in-process research and development	25,100
Decrease in gross carrying value due to impairment of finite-lived intangible assets	(68,053		)
Gross carrying value at January 26, 2014	185,997
Purchased intangible assets	1,100
Acquired intangible assets	1,430
Decrease in gross carrying value due to impairment of finite-lived intangible assets	(19,479		)
Gross carrying value at January 25, 2015	$	169,048

Future amortization expense for intangible assets

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



(in thousands)
To be recognized in:	Core Technologies		Customer relationships		Technology licenses		Other Intangibles		Total
Fiscal year 2016	$	18,641	$	4,000	$	50	$	87	$	22,778
Fiscal year 2017	18,641		4,000		44		—		22,685
Fiscal year 2018	18,641		4,000		—		—		22,641
Fiscal year 2019	15,229		4,000		—		—		19,229
Fiscal year 2020	7,398		550		—		—		7,948
Thereafter	2,319		—		—		—		2,319
Total expected amortization expense	$	80,869	$	16,550	$	94	$	87	$	97,600

Schedule of indefinite-lived intangible assets

The following table sets forth the Company’s indefinite-lived intangible assets from additions to IPR&D, acquisitions, impairments, and transfers to core technologies:



(in thousands)	Gross Carrying Amount
Net carrying value at January 27, 2013	$	31,700
In-process research and development through acquisitions	—
In-process research and development impairment	(2,600		)
Transfers to core technologies	(25,100		)
Net carrying value at January 26, 2014	$	4,000
In-process research and development through acquisitions	—
In-process research and development impairment	—
Transfers to core technologies	—
Net carrying value at January 25, 2015	$	4,000