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Employee Benefit Plans (Schedule Of Valuation And Expense Information) (Details)
3 Months Ended 9 Months Ended
Sep. 27, 2015
Sep. 28, 2014
Sep. 27, 2015
Sep. 28, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Expected Term 4 years 6 months 4 years 6 months
Risk Free Interest Rate 1.44% 1.44%
Expected Volatility Rate 39.30% 42.60%
Dividend yield (in percentage) 0.00% 0.00%