Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets

The following tables summarize the details of our total purchased intangible assets as of December 31, 2016 and January 2, 2016:

	December 31, 2016
(In thousands)	Weighted Average Amortization Period (in years)	Gross		Impairment			Accumulated Amortization			Intangible assets, net of amortization
Developed technology	4.7	$	141,359	$	—		$	(55,493	)	$	85,866
Customer relationships	6.1	30,800		(7,866		)	(13,694		)	9,240
Licensed technology	3.3	2,127		—			(1,201		)	926
Patents	5	769		—			(279		)	490
Total identified finite-lived intangible assets		175,055		(7,866		)	(70,667		)	96,522
In-process research and development	indefinite	22,341		—			—			22,341
Total identified intangible assets		$	197,396	$	(7,866	)	$	(70,667	)	$	118,863

	January 2, 2016
(In thousands)	Weighted Average Amortization Period (in years)	Gross		Impairment			Accumulated Amortization			Intangible assets, net of amortization
Developed technology	4.7	$	135,700	$	(3,856	)	$	(28,384	)	$	103,460
Customer relationships	5.5	37,258		(5,139		)	(10,156		)	21,963
Licensed technology	2.5	2,127		—			(610		)	1,517
Patents	5	769		—			(126		)	643
Total identified finite-lived intangible assets		175,854		(8,995		)	(39,276		)	127,583
In-process research and development	indefinite	35,000		—			—			35,000
Total identified intangible assets		$	210,854	$	(8,995	)	$	(39,276	)	$	162,583

Finite-lived Intangible Assets Amortization Expense

We recorded amortization expense associated with these intangible assets on the Consolidated Statements of Operations as follows:

	Year Ended
(In thousands)	December 31, 2016		January 2, 2016		January 3, 2015
Research and development	$	745	$	731	$	—
Amortization of acquired intangible assets	33,575		28,849		2,948
	$	34,320	$	29,580	$	2,948

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

The annual expected amortization expense of acquired intangible assets with finite lives is as follows:

(In thousands)	Amount
2017	$	33,759
2018	27,877
2019	25,093
2020	7,145
2021	2,547
Thereafter	101
Total	$	96,522