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Stockholders' Equity (Share Repurchase) (Details) - USD ($)
$ / shares in Units, shares in Thousands
3 Months Ended 6 Months Ended
Feb. 16, 2018
Jul. 01, 2018
Apr. 01, 2018
Jul. 01, 2018
Jun. 25, 2017
Share Repurchase Program [Line Items]          
Stock repurchased and retired during period, shares   1,287 2,116 3,403  
Stock repurchased program, average price paid, per share   $ 23.31 $ 24.10 $ 23.80  
Stock repurchased and retired during period, value   $ 30,004,000 $ 50,996,000 $ 81,000,000 $ 198,728,000
2017 Share repurchase program [Member]          
Share Repurchase Program [Line Items]          
Stock repurchase program, authorized repurchase amount canceled $ 55,000,000        
2018 Share repurchase program [Member]          
Share Repurchase Program [Line Items]          
Stock repurchase program, authorized amount $ 150,000,000        
Stock repurchase program, remaining number of shares authorized to be repurchased   69,000   69,000