Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 29, 2012

Goodwill and Other Intangible Assets

Summary of goodwill activity

	Year Ended
	December 29, 2012		December 31, 2011
Beginning balance	$	115,489	$	112,296
Additions due to business combinations		14,776		4,097
Adjustments		—		(904	)
Ending balance	$	130,265	$	115,489

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

		December 29, 2012					December 31, 2011
	Weighted-Average Amortization Period (Years)	Gross Amount		Accumulated Amortization			Gross Amount		Accumulated Amortization
Intangible assets:
Subject to amortization:
Core and developed technology	10	$	95,420	$	(30,145	)	$	79,500	$	(30,432	)
Customer relationships	9		8,100		(1,057	)		2,510		(523	)
Patents	6		3,000		(250	)		—		—
Trademarks	12		910		(38	)		—		—
	10		107,430		(31,490	)		82,010		(30,955	)
Not subject to amortization:
In-process research and development	Not amortized		14,810		—			8,950		—
Total intangible assets		$	122,240	$	(31,490	)	$	90,960	$	(30,955	)

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

Fiscal Year
2013	$	11,213
2014		10,372
2015		9,981
2016		9,331
2017		8,364