Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Jan. 03, 2015

Goodwill and Other Intangible Assets

Summary of goodwill activity

The following summarizes the activity in goodwill for the years ended January 3, 2015 and December 28, 2013 (in thousands):

	Year Ended
	January 3, 2015		December 28, 2013
Beginning balance	$	228,781	$	130,265
Additions due to business combinations		—		98,516
Ending balance	$	228,781	$	228,781

Schedule of gross carrying amount and accumulated amortization of other intangible assets

The gross carrying amount and accumulated amortization of other intangible assets are as follows (in thousands):

		January 3, 2015					December 28, 2013
	Weighted-Average Amortization Period (Years)
		Gross Amount		Accumulated Amortization			Gross Amount		Accumulated Amortization
Intangible assets:
Subject to amortization:
Core and developed technology	9	$	148,891	$	(47,894	)	$	138,340	$	(41,782	)
Customer relationships	9		14,500		(4,003	)		14,500		(2,330	)
Patents	6		3,000		(1,250	)		3,000		(750	)
Trademarks	10		2,210		(433	)		2,210		(195	)
	9		168,601		(53,580	)		158,050		(45,057	)
Not subject to amortization:
In-process research and development	Not amortized		—		—			18,600		—
Total intangible assets		$	168,601	$	(53,580	)	$	176,650	$	(45,057	)

Schedule of estimated aggregate amortization expense for intangible assets subject to amortization for each of the five succeeding fiscal years

The estimated aggregate amortization expense for intangible assets subject to amortization for each of the five succeeding fiscal years is as follows (in thousands):

Fiscal Year
2015	$	19,331
2016		18,682
2017		17,715
2018		16,690
2019		14,251