Goodwill and Intangible Assets, Net (Identifiable Intangible Asset Balances) (Details) (USD $) In Thousands	Oct. 02, 2011	Jan. 02, 2011
Finite and Indefinite Lived Intangible Assets by Major Class [Line Items]
Net amortizable intangible assets	$ 365,243	$ 277,214
Totals	512,277	424,248
Patents [Member]
Finite and Indefinite Lived Intangible Assets by Major Class [Line Items]
Gross amortizable intangible assets	107,508	107,562
Less: Accumulated amortization	(83,319)	(78,735)
Net amortizable intangible assets	24,189	28,827
Trade Names And Trademarks [Member]
Finite and Indefinite Lived Intangible Assets by Major Class [Line Items]
Gross amortizable intangible assets	21,053	16,219
Less: Accumulated amortization	(10,321)	(8,243)
Net amortizable intangible assets	10,732	7,976
Non-amortizing intangible assets	147,034	147,034
Licenses [Member]
Finite and Indefinite Lived Intangible Assets by Major Class [Line Items]
Gross amortizable intangible assets	68,660	60,810
Less: Accumulated amortization	(38,832)	(33,704)
Net amortizable intangible assets	29,828	27,106
Core Technology [Member]
Finite and Indefinite Lived Intangible Assets by Major Class [Line Items]
Gross amortizable intangible assets	338,310	310,557
Less: Accumulated amortization	(208,350)	(187,289)
Net amortizable intangible assets	129,960	123,268
Customer Relationships [Member]
Finite and Indefinite Lived Intangible Assets by Major Class [Line Items]
Gross amortizable intangible assets	229,994	140,831
Less: Accumulated amortization	(66,012)	(53,888)
Net amortizable intangible assets	163,982	86,943
IPR&D [Member]
Finite and Indefinite Lived Intangible Assets by Major Class [Line Items]
Gross amortizable intangible assets	7,230	3,499
Less: Accumulated amortization	(678)	(405)
Net amortizable intangible assets	$ 6,552	$ 3,094