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Employee Benefit Plans (Schedule Of Valuation And Expense Information) (Details)
3 Months Ended 9 Months Ended
Sep. 28, 2014
Sep. 29, 2013
Sep. 28, 2014
Sep. 29, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Expected Term (in days)    4 years 4 months 24 days 4 years 6 months 0 days 4 years 4 months 24 days
Risk Free Interest Rate    1.14% 1.44% 0.71%
Expected Volatility Rate    46.40% 42.60% 48.10%
Dividend yield (in percentage)    0.00% 0.00% 0.00%