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Stockholders' Equity (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended
Apr. 02, 2017
Apr. 03, 2016
Apr. 25, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock Repurchased and Retired During Period, Shares 200,000 300,000  
Stock repurchased and retired during the period, value $ 11,600 $ 10,000  
Remaining Number of Shares Authorized to be Repurchased 1,100,000    
Shares Repurchased And Retired Related to Net of Issuances Shares, Shares 38,000 9,000  
Restricted stock unit tax withholdings $ 1,936 $ 350  
Subsequent Event [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of Shares Authorized to be Repurchased     3,000,000