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Shareholders' Equity (Narrative) (Details) - USD ($)
3 Months Ended 12 Months Ended
Oct. 03, 2015
Sep. 27, 2014
Jan. 02, 2016
Jan. 03, 2015
Dec. 28, 2013
Apr. 29, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Treasury Stock, Shares, Acquired 180,000 500,000        
Treasury Stock Acquired, Average Cost Per Share $ 66.56 $ 69.94        
Payments for Repurchase of Common Stock $ 12,000,000 $ 35,000,000 $ 12,000,000 $ 35,000,000 $ 0  
Number of shares approved to be repurchased     3,000,000      
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased 2,300,000          
Recognized share-based compensation expense     $ 13,900,000 11,900,000 $ 11,400,000  
Unrecognized compensation cost related to share-based compensation     $ 24,500,000      
Vesting period, minimum     5 years      
Share-based compensation expected to recognize over a weighted average period, years     2 years 1 month 18 days      
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period     10 years      
Options and SAR's [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Allocated Share-based Compensation Expense     $ 5.1      
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Share-based Awards Other than Options     $ 10,900,000      
Share-based compensation expected to recognize over a weighted average period, years     3 years 2 months 12 days      
Restricted Stock [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Allocated Share-based Compensation Expense     $ 1,100,000      
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Share-based Awards Other than Options     $ 400,000      
Share-based compensation expected to recognize over a weighted average period, years     5 months 2 days      
Restricted Stock Units (RSUs) [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Allocated Share-based Compensation Expense     $ 5,900,000      
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Share-based Awards Other than Options     $ 9,900,000      
Share-based compensation expected to recognize over a weighted average period, years     1 year 9 months 18 days      
Performance Share Units [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Allocated Share-based Compensation Expense     $ 1,800,000 $ 1,000,000    
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Share-based Awards Other than Options     $ 3,300,000      
Share-based compensation expected to recognize over a weighted average period, years     1 year 10 months 23 days      
Share-based Compensation Arrangement by Share-based Payment Award, Performance Award Performance Period     3 years      
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost, Basis of Recognition, % of Target Payout     100.00%      
Performance Share Units [Member] | Minimum [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share-based Compensation Arrangement by Share-based Payment Award, Performance Shares Term, Potential Payout as a Percentage of Target     0.00%      
Performance Share Units [Member] | Maximum [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share-based Compensation Arrangement by Share-based Payment Award, Performance Shares Term, Potential Payout as a Percentage of Target     200.00%      
Common Stock [Member] | 2013 Equity Incentive Plan [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Authorized shares of common stock           3,500,000.0
Share available for future grant or payment under the various plans     2,000,000