Goodwill And Intangible Assets (Intangible Assets Subject To Amortization) (Details) (USD $) In Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2011	Jul. 03, 2010	Jul. 02, 2011	Jul. 03, 2010
Intangible assets subject to amortization, beginning balance			$ 220,237
Amortization during the period	(17,975)	(16,762)	(35,374)	(34,980)
Currency translation during the period			14,964
Intangible assets subject to amortization, ending balance	199,827		199,827
Customer Relationships [Member]
Intangible assets subject to amortization, beginning balance			106,432
Amortization during the period			(23,799)
Currency translation during the period			4,875
Intangible assets subject to amortization, ending balance	87,508		87,508
Patents [Member]
Intangible assets subject to amortization, beginning balance			112,520
Amortization during the period			(11,514)
Currency translation during the period			10,076
Intangible assets subject to amortization, ending balance	111,082		111,082
Other [Member]
Intangible assets subject to amortization, beginning balance			1,285
Amortization during the period			(61)
Currency translation during the period			13
Intangible assets subject to amortization, ending balance	$ 1,237		$ 1,237