Goodwill and Intangible Assets (Details 1) (USD $) In Thousands, unless otherwise specified								12 Months Ended		12 Months Ended
	Jan. 01, 2012	Jan. 02, 2011	Jan. 01, 2012 Developed product technology [Member]	Jan. 02, 2011 Developed product technology [Member]	Jan. 01, 2012 Trademarks [Member]	Jan. 01, 2012 Customer relationships [Member]	Jan. 01, 2012 Covenants not to compete [Member]	Jan. 02, 2011 Technology licenses and patents [Member]	Jan. 01, 2012 Technology licenses and patents [Member]	Jan. 01, 2012 Acquisition-related Intangible Assets [Member]	Jan. 02, 2011 Acquisition-related Intangible Assets [Member]	Jan. 01, 2012 Intangible assets subject to amortization [Member]	Jan. 01, 2012 Acquired in-process research and development [Member]	Jan. 01, 2012 Core Technology [Member]	Jan. 02, 2011 Core Technology [Member]
Intangible Assets
Gross Carrying Amount	$ 438,340	$ 122,540	$ 172,800	$ 11,400	$ 5,300	$ 12,200	$ 700	$ 31,340	$ 131,340	$ 270,800	$ 91,200	$ 402,140	$ 36,200	$ 79,800	$ 79,800
Accumulated Amortization	(150,649)	(85,136)	(30,014)	(8,075)	(633)	(3,643)	(209)	(19,515)	(40,801)	(109,848)	(65,621)	(150,649)	0	(75,349)	(57,546)
Net Carrying Amount	287,691	37,404	142,786	3,325	4,667	8,557	491	11,825	90,539	160,952	25,579	251,491	36,200	4,451	22,254
Estimated Amortization Expense of Intangible Assets
2011								23,971		44,906
2012								22,670		35,938
2013								20,564		33,340
2014								20,000		33,340
2015								3,334		13,428
Total intangible assets subject to amortization								$ 90,539		$ 160,952