Goodwill and Acquired Intangibles (Details 1) (USD $) In Thousands, unless otherwise specified	Dec. 29, 2012	Dec. 31, 2011
Acquired intangibles with finite lives, excluding intangibles fully amortized at end of prior fiscal year
Gross Carrying Amount	$ 289,289	$ 264,776
Accumulated Amortization	(104,351)	(91,542)
Acquired Intangibles, Net	184,938	173,234
Existing Technology [Member]
Acquired intangibles with finite lives, excluding intangibles fully amortized at end of prior fiscal year
Gross Carrying Amount	112,940	90,433
Accumulated Amortization	(30,171)	(17,119)
Acquired Intangibles, Net	82,769	73,314
Agreements and relationships [Member]
Acquired intangibles with finite lives, excluding intangibles fully amortized at end of prior fiscal year
Gross Carrying Amount	133,764	118,060
Accumulated Amortization	(37,769)	(27,123)
Acquired Intangibles, Net	95,995	90,937
Distribution rights [Member]
Acquired intangibles with finite lives, excluding intangibles fully amortized at end of prior fiscal year
Gross Carrying Amount	30,100	30,100
Accumulated Amortization	(28,595)	(25,585)
Acquired Intangibles, Net	1,505	4,515
Tradenames Trademarks And Patents [Member]
Acquired intangibles with finite lives, excluding intangibles fully amortized at end of prior fiscal year
Gross Carrying Amount	12,485	26,183
Accumulated Amortization	(7,816)	(21,715)
Acquired Intangibles, Net	$ 4,669	$ 4,468