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Goodwill And Other Intangible Assets (Components Of Intangible Assets) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Dec. 30, 2012
Mar. 31, 2013
Customer Lists [Member]
Dec. 30, 2012
Customer Lists [Member]
Mar. 31, 2013
Trade Name [Member]
Dec. 30, 2012
Trade Name [Member]
Mar. 31, 2013
Patents, License Agreements [Member]
Dec. 30, 2012
Patents, License Agreements [Member]
Mar. 31, 2013
Other Intangibles [Member]
Dec. 30, 2012
Other Intangibles [Member]
Mar. 31, 2013
Minimum [Member]
Customer Lists [Member]
Mar. 31, 2013
Minimum [Member]
Trade Name [Member]
Mar. 31, 2013
Minimum [Member]
Patents, License Agreements [Member]
Mar. 31, 2013
Minimum [Member]
Other Intangibles [Member]
Mar. 31, 2013
Maximum [Member]
Customer Lists [Member]
Mar. 31, 2013
Maximum [Member]
Trade Name [Member]
Mar. 31, 2013
Maximum [Member]
Patents, License Agreements [Member]
Mar. 31, 2013
Maximum [Member]
Other Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]                                    
Finite-lived intangible assets, Amortizable Life Minimum (years)                     6 years 1 year 3 years 2 years 20 years 30 years 14 years 6 years
Finite-lived customer lists, Gross Amount     $ 80,936 $ 81,895                            
Finite-lived trade name, Gross Amount         29,622 30,414                        
Finite-lived patents, license agreements, Gross Amount             59,747 60,682                    
Finite-lived other intangibles, Gross Amount                 7,103 7,178                
Total amortized finite-lived intangible assets, Gross Amount 177,408 180,169                                
Indefinite-lived trade names, Gross Amount         21,508 21,511                        
Total identifiable intangible assets, Gross Amount 198,916 201,680                                
Amortized finite-lived intangible assets, Gross Accumulated Amortization 126,720 126,730 50,833 50,215 18,824 19,143 50,485 50,826 6,578 6,546                
Total identifiable assets accumulated amortization $ 126,720 $ 126,730