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Goodwill And Other Intangible Assets (Components Of Intangible Assets) (Details) (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Sep. 29, 2013
Dec. 30, 2012
Sep. 29, 2013
Customer Lists [Member]
Dec. 30, 2012
Customer Lists [Member]
Sep. 29, 2013
Trade Name [Member]
Dec. 30, 2012
Trade Name [Member]
Sep. 29, 2013
Patents, License Agreements [Member]
Dec. 30, 2012
Patents, License Agreements [Member]
Sep. 29, 2013
Other Intangibles [Member]
Dec. 30, 2012
Other Intangibles [Member]
Sep. 29, 2013
Minimum [Member]
Customer Lists [Member]
Sep. 29, 2013
Minimum [Member]
Trade Name [Member]
Sep. 29, 2013
Minimum [Member]
Patents, License Agreements [Member]
Sep. 29, 2013
Minimum [Member]
Other Intangibles [Member]
Sep. 29, 2013
Maximum [Member]
Customer Lists [Member]
Sep. 29, 2013
Maximum [Member]
Trade Name [Member]
Sep. 29, 2013
Maximum [Member]
Patents, License Agreements [Member]
Sep. 29, 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     $ 82,562 $ 81,895                            
Finite-lived trade name, Gross Amount         30,928 30,414                        
Finite-lived patents, license agreements, Gross Amount             61,319 60,682                    
Finite-lived other intangibles, Gross Amount                 7,133 7,178                
Total amortized finite-lived intangible assets, Gross Amount 181,942 180,169                                
Indefinite-lived trade names, Gross Amount         21,514 21,511                        
Total identifiable intangible assets, Gross Amount 203,456 201,680                                
Amortized finite-lived intangible assets, Gross Accumulated Amortization 134,915 126,730 54,969 50,215 19,985 19,143 53,228 50,826 6,733 6,546                
Total identifiable assets accumulated amortization $ 134,915 $ 126,730