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Employee Benefit Plans (Summary Of The Fair Value Of Pension Plan Assets) (Details) (USD $)
Dec. 30, 2012
Dec. 25, 2011
Dec. 26, 2010
Defined Benefit Plan Disclosure [Line Items]      
Global insurance assets $ 1,488,000 $ 1,406,000 $ 1,472,000
Global Insurance Assets [Member] | Estimated Fair Value [Member]
     
Defined Benefit Plan Disclosure [Line Items]      
Global insurance assets 1,488,000    
Global Insurance Assets [Member] | Significant Other Observable Inputs (Level 2) [Member]
     
Defined Benefit Plan Disclosure [Line Items]      
Global insurance assets 0    
Global Insurance Assets [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
     
Defined Benefit Plan Disclosure [Line Items]      
Global insurance assets 0    
Global Insurance Assets [Member] | Significant Other Unobservable Inputs (Level 3) [Member]
     
Defined Benefit Plan Disclosure [Line Items]      
Global insurance assets $ 1,488,000