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Intangible Assets (Indefinite Lived Intangible Assets) (Details 3) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 29, 2013
Mar. 29, 2013
Implantable Medical [Member]
Mar. 29, 2013
Electrochem [Member]
Mar. 29, 2013
Trademarks And Tradenames [Member]
Dec. 28, 2012
Trademarks And Tradenames [Member]
Mar. 29, 2013
In Process Research And Development [Member]
Dec. 28, 2012
In Process Research And Development [Member]
Indefinite-lived Intangible Assets [Roll Forward]              
Indefinite-lived intangible assets, beginning $ 20,828     $ 20,288 $ 20,288 $ 540 $ 540
Indefinite-lived intangible assets, ending 20,828     20,288 20,288 540 540
Goodwill [Roll Forward]              
Goodwill 349,035 307,201 41,834        
Goodwill, Acquired During Period 0 0 0        
Goodwill Disposed (2,771) (2,771) 0        
Goodwill, Translation Adjustments (1,593) (1,593) 0        
Goodwill $ 344,671 $ 302,837 $ 41,834