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Stockholders' Equity (Narrative) (Details) - $ / shares
shares in Thousands
3 Months Ended 6 Months Ended
Jul. 23, 2019
Jun. 29, 2019
Jun. 30, 2018
Jun. 29, 2019
Jun. 30, 2018
Apr. 27, 2016
Stockholders' Equity [Line Items]            
Dividends, Per Share, Declared   $ 0.15 $ 0.15 $ 0.30 $ 0.30  
Stock Options            
Stockholders' Equity [Line Items]            
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount   0 0 0 0  
Restricted Stock Units (RSUs)            
Stockholders' Equity [Line Items]            
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount   0 14 2 14  
2016 Share Repurchase Plan [Member]            
Stockholders' Equity [Line Items]            
Stock Repurchase Program, Number of Shares Authorized to be Repurchased           40,000
Remaining number of shares authorized to be repurchased   20,360   20,360    
Subsequent Event [Member]            
Stockholders' Equity [Line Items]            
Dividends, Per Share, Declared $ 0.15