Goodwill and Intangible Assets-Intangibles (Details 2) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 30, 2012
Intangible Assets
Total Intangible Assets, gross	$ 394,244	$ 474,904
Accumulated Amortization	(165,656)	(227,125)
Intangible Asset Adjustment		(860)
Total Intangible Assets, net	228,588	246,919
Acquired in-process research and development [Member]
Intangible Assets
Gross Carrying Amount, Indefinite-lived Intangible Asset	37,525	38,385
Adjustments of indefinite lived intangible assets		(860)
Net Carrying Amount, Indefinite-lived Intangible Assets	37,525	37,525
Developed product technology [Member]
Intangible Assets
Gross Carrying Amount, Finite-lived Intangible Asset	200,960	200,960
Accumulated Amortization	(77,934)	(68,104)
Adjustments of finite lived intangible assets		0
Intangible assets subject to amortization	123,026	132,856
Core Technology [Member]
Intangible Assets
Gross Carrying Amount, Finite-lived Intangible Asset		79,800
Accumulated Amortization		(79,800)
Adjustments of finite lived intangible assets		0
Intangible assets subject to amortization		0
Customer relationships [Member]
Intangible Assets
Gross Carrying Amount, Finite-lived Intangible Asset	13,050	13,050
Accumulated Amortization	(11,710)	(10,043)
Adjustments of finite lived intangible assets		0
Intangible assets subject to amortization	1,340	3,007
Trademarks [Member]
Intangible Assets
Gross Carrying Amount, Finite-lived Intangible Asset	5,700	5,700
Accumulated Amortization	(2,184)	(1,870)
Adjustments of finite lived intangible assets		0
Intangible assets subject to amortization	3,516	3,830
Covenants not to compete [Member]
Intangible Assets
Gross Carrying Amount, Finite-lived Intangible Asset	3,100	3,100
Accumulated Amortization	(2,005)	(1,618)
Adjustments of finite lived intangible assets		0
Intangible assets subject to amortization	1,095	1,482
Technology licenses and patents [Member]
Intangible Assets
Gross Carrying Amount, Finite-lived Intangible Asset	133,909	133,909
Accumulated Amortization	(71,823)	(65,690)
Adjustments of finite lived intangible assets		0
Intangible assets subject to amortization	62,086	68,219
Acquisition-related Intangible Assets [Member]
Intangible Assets
Gross Carrying Amount, Finite-lived Intangible Asset	222,810	302,610
Accumulated Amortization	(93,833)	(161,435)
Adjustments of finite lived intangible assets		0
Intangible assets subject to amortization	128,977	141,175
Intangible assets subject to amortization [Member]
Intangible Assets
Gross Carrying Amount, Finite-lived Intangible Asset	356,719	436,519
Accumulated Amortization	(165,656)	(227,125)
Adjustments of finite lived intangible assets		0
Intangible assets subject to amortization	$ 191,063	$ 209,394