Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 30, 2012

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

Goodwill balances are presented below (in thousands):

	Carrying Amount
Balance as of January 1, 2012	$	154,899
Acquisitions	42,979
Acquisition earn-out	3,857
Balance as of December 30, 2012	$	201,735

Intangible Assets

Intangible asset balances are presented below (in thousands):

	December 30, 2012
	Gross Carrying Amount		Accumulated Amortization			Adjustments			Net Carrying Amount
Developed product technology	$	200,960	$	(68,104	)	$	—		$	132,856
Core technology	79,800		(79,800		)	—			—
Customer relationships	13,050		(10,043		)	—			3,007
Trademarks	5,700		(1,870		)	—			3,830
Covenants not to compete	3,100		(1,618		)	—			1,482
Acquisition-related intangible assets	302,610		(161,435		)	—			141,175
Technology licenses and patents	133,909		(65,690		)	—			68,219
Total intangible assets subject to amortization	436,519		(227,125		)	—			209,394
Acquired in-process research and development	38,385		—			(860		)	37,525
Total intangible assets	$	474,904	$	(227,125	)	$	(860	)	$	246,919

	January 1, 2012
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Developed product technology	$	172,800	$	(30,014	)	$	142,786
Core technology	79,800		(75,349		)	4,451
Customer relationships	12,200		(3,643		)	8,557
Trademarks	5,300		(633		)	4,667
Covenants not to compete	700		(209		)	491
Acquisition-related intangible assets	270,800		(109,848		)	160,952
Technology licenses and patents	131,340		(40,801		)	90,539
Total intangible assets subject to amortization	402,140		(150,649		)	251,491
Acquired in-process research and development	36,200		—			36,200
Total intangible assets	$	438,340	$	(150,649	)	$	287,691

Estimated Amortization Expense of Intangible Assets

The annual expected amortization expense of intangible assets as of December 30, 2012, excluding acquired in-process research and development, is presented below (in thousands):

	Estimated Amortization Expense
	Acquisition-related Intangible Assets		Technology Licenses and Patents
Fiscal year:
2013	$	44,928	$	23,599
2014	40,545		21,231
2015	40,380		20,056
2016	15,322		3,333
Total intangible assets subject to amortization	$	141,175	$	68,219