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Stock-Based Compensation (Restricted Stock Awards) (Details) - $ / shares
6 Months Ended
Jun. 26, 2015
Jun. 27, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock Issued During Period, Shares, Restricted Stock Award, Gross 21,875 26,117
Price Per Share   $ 28,890,000
Performance Shares [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of Share-based Payment Award Nonvested 175,000 165,000
Price Per Share $ 33.44 $ 25.52
Restricted Stock Units (RSUs) [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of Share-based Payment Award Nonvested 50,000  
Price Per Share $ 33.44  
Restricted Stock [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of Share-based Payment Award Nonvested 21,875 26,117
Price Per Share $ 33.60 $ 28.15
Two Thousand Fourteen Omnibus Share Incentive Plan [Member] [Domain]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock Issued During Period, Shares, Restricted Stock Award, Gross 0