Intangible Assets (Tables)

12 Months Ended

Dec. 29, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets

The following tables summarize the details of our Intangible assets, net as of December 29, 2018 and December 30, 2017:

	December 29, 2018
(In thousands)	Weighted Average Amortization Period (in years)	Gross		Impairment			Accumulated Amortization			Intangible assets, net
Developed technology	5.0	$	112,269	$	(12,486	)	$	(83,185	)	$	16,598
Customer relationships	5.8	22,934		—			(19,048		)	3,886
Licensed technology	5.0	1,195		—			(354		)	841
Total identified intangible assets		$	136,398	$	(12,486	)	$	(102,587	)	$	21,325

	December 30, 2017
(In thousands)	Weighted Average Amortization Period (in years)	Gross		Impairment			Accumulated Amortization			Intangible assets, net
Developed technology	4.7	$	158,700	$	(32,431	)	$	(81,847	)	$	44,422
Customer relationships	5.7	22,934		—			(16,696		)	6,238
Licensed technology	3.5	2,392		—			(1,744		)	648
Total identified intangible assets		$	184,026	$	(32,431	)	$	(100,287	)	$	51,308

Finite-lived Intangible Assets Amortization Expense

We recorded amortization expense related to intangible assets on the Consolidated Statements of Operations as presented in the following table:

	Year Ended
(In thousands)	December 29, 2018		December 30, 2017		December 31, 2016
Research and development	$	277	$	569	$	745
Amortization of acquired intangible assets	17,690		31,340		33,575
	$	17,967	$	31,909	$	34,320

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

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

(In thousands)	Amount
2019	13,613
2020	4,499
2021	2,239
2022	238
Thereafter	736
Total	$	21,325