Goodwill and Intangible Assets

The following table summarizes goodwill activity by reportable segment during the three months ended January 28, 2017 (in thousands):



	Storage Area Networking (“SAN”) Products		IP Networking Products			Global Services			Total
Balance at October 29, 2016
Goodwill	$	176,320	$	1,698,641		$	549,437		$	2,424,398
Accumulated impairment losses	—		(129,214		)	—			(129,214		)
	176,320		1,569,427			549,437			2,295,184
Purchase accounting adjustments	—		69,637			(74,616		)	(4,979		)
Balance at January 28, 2017
Goodwill	176,320		1,768,278			474,821			2,419,419
Accumulated impairment losses	—		(129,214		)	—			(129,214		)
	$	176,320	$	1,639,064		$	474,821		$	2,290,205

The Company conducts its goodwill impairment test annually, as of the first day of the fourth fiscal quarter, and whenever events occur or facts and circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount. For the annual goodwill impairment test, the Company uses the income approach, the market approach, or a combination thereof to determine each reporting unit’s fair value. The income approach provides an estimate of fair value based on discounted expected future cash flows (“DCF”). The market approach provides an estimate of fair value by applying various observable market-based multiples to the reporting unit’s operating results and then applying an appropriate control premium. For the fiscal year 2016 annual goodwill impairment test, the Company used a combination of these approaches to estimate each reporting unit’s fair value. At the time that the fiscal year 2016 annual goodwill impairment test was performed, the Company believed that the income approach and the market approach were equally representative of a reporting unit’s fair value.

Determining the fair value of a reporting unit requires judgment and involves the use of significant estimates and assumptions. The Company based its fair value estimates on assumptions it believes to be reasonable but are inherently uncertain. Estimates and assumptions with respect to the determination of the fair value of its reporting units using the income approach include, among other inputs:


•	The Company’s operating forecasts;


•	The Company’s forecasted revenue growth rates; and


•	Risk-commensurate discount rates and costs of capital.

The Company’s estimates of revenues and costs are based on historical data, various internal estimates, and a variety of external sources, and are developed as part of the Company’s regular long-range planning process. The control premium used in the market approach or as part of combined approaches was determined by considering control premiums offered as part of the acquisitions where acquired companies were comparable with the Company’s reporting units.

Based on the results of the annual goodwill impairment analysis performed during the fourth fiscal quarter of 2016, the Company determined that no impairment charge needed to be recorded. As of January 28, 2017, no new events had occurred nor had any facts or circumstances changed since the annual goodwill impairment analysis performed during the fourth quarter of fiscal year 2016 that indicated that the fair values of the reporting units may be less than their current carrying amounts.

Intangible assets other than goodwill are amortized on a straight-line basis over the following estimated remaining useful lives, unless the Company has determined these lives to be indefinite. The Company did not incur costs to renew or extend the term of any acquired finite-lived intangible assets during the three months ended January 28, 2017.

The following tables present details of the Company’s intangible assets, excluding goodwill (in thousands, except for weighted-average remaining useful life):



	January 28, 2017
	Gross Carrying Value		Accumulated Amortization		Net Carrying Value		Weighted- Average Remaining Useful Life (In years)
Finite-lived intangible assets:
Trade names	$	43,090	$	3,279	$	39,810	10.27
Core/developed technology	290,290		50,411		239,879		5.29
Patent portfolio license ⁽¹⁾	7,750		2,194		5,556		16.51
Customer relationships	141,110		22,422		118,688		6.16
Non-compete agreements	1,050		1,030		20		0.13
Patents with broader applications	1,040		127		913		13.13
Total finite-lived intangible assets	484,330		79,463		404,866		5.84
Indefinite-lived intangible assets, excluding goodwill:
IPR&D ⁽²⁾	25,000		—		25,000
Total indefinite-lived intangible assets, excluding goodwill	25,000		—		25,000
Total intangible assets, excluding goodwill	$	509,330	$	79,463	$	429,866

	October 29, 2016
	Gross Carrying Value		Accumulated Amortization		Net Carrying Value		Weighted- Average Remaining Useful Life (In years)
Finite-lived intangible assets:
Trade names	$	45,090	$	2,359	$	42,731	10.51
Core/developed technology	286,290		37,352		248,938		5.51
Patent portfolio license ⁽¹⁾	7,750		1,935		5,815		17.00
Customer relationships	143,110		15,813		127,297		6.32
Non-compete agreements	1,050		983		67		0.29
Patents with broader applications	1,040		110		930		13.38
Total finite-lived intangible assets	484,330		58,552		425,778		6.08
Indefinite-lived intangible assets, excluding goodwill:
IPR&D ⁽²⁾	24,000		—		24,000
Total indefinite-lived intangible assets, excluding goodwill	24,000		—		24,000
Total intangible assets, excluding goodwill	$	508,330	$	58,552	$	449,778

⁽¹⁾

The patent portfolio license was assigned an estimated useful life that reflects the Company’s consumption of the expected defensive benefits related to this license to certain patents. The method of amortization for the patent portfolio license reflects the Company’s estimate of the pattern in which these expected defensive benefits will be used by the Company and is primarily based on the mix of expiration patterns of the individual patents included in the license.


⁽²⁾	Acquired IPR&D is an intangible asset accounted for as an indefinite-lived asset until the completion or abandonment of the associated research and development effort. If the research and development effort associated with the IPR&D is successfully completed, then the IPR&D intangible asset will be amortized over its estimated useful life to be determined at the date the effort is completed.

The Company conducts the IPR&D impairment test annually, as of the first day of the fourth fiscal quarter, and whenever events occur or facts and circumstances indicate that it is more likely than not that the IPR&D is impaired. For the annual IPR&D impairment test, the Company elects the option to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the fair value of the IPR&D assets is less than the carrying amount. If, after assessing the totality of events and circumstances, the Company determines that it is more likely than not that the fair value of the IPR&D assets is less than the carrying amount, then the Company conducts a quantitative analysis to determine the fair value of the IPR&D assets. If the carrying amount of the IPR&D assets exceeds the fair value, then the Company recognizes an impairment loss equal to the difference.

Based on the results of the annual IPR&D impairment analysis performed during the fourth fiscal quarter of 2016, the Company determined that no impairment needed to be recorded. As of January 28, 2017, no new events had occurred nor had any facts or circumstances changed since the annual IPR&D impairment analysis performed during the fourth quarter of fiscal year 2016 that indicated that the fair value of the IPR&D assets may be less than the current carrying amount.

The amortization of finite-lived intangible assets is included in the following line items of the Company’s Condensed Consolidated Statements of Operations as follows (in thousands):



	Three Months Ended
	January 28, 2017		January 30, 2016
Cost of revenues	$	13,060	$	3,154
General and administrative ⁽¹⁾	259		277
Amortization of intangible assets	7,594		902
Total	$	20,913	$	4,333


⁽¹⁾	The amortization is related to the $7.8 million of perpetual, nonexclusive license to certain patents purchased in fiscal year 2015.

The following table presents the estimated future amortization of finite-lived intangible assets as of January 28, 2017 (in thousands):



Fiscal Year	Estimated Future Amortization
2017 (remaining nine months)	$	58,323
2018	70,090
2019	66,562
2020	65,630
2021	61,876
Thereafter	82,385
Total	$	404,866