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Goodwill and Other Intangible Assets (Other Intangible Assets) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2018
Apr. 01, 2017
Dec. 30, 2017
Finite-Lived Intangible Assets [Line Items]      
Gross $ 282,087   $ 280,799
Accumulated Amortization 104,009   98,613
Net 178,078   182,186
Capitalized software 4,167 $ 1,340  
Other definite-lived intangibles 1,688 $ 1,774  
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]      
2018 23,100    
2019 22,100    
2020 21,200    
2021 20,200    
2022 18,300    
Patents      
Finite-Lived Intangible Assets [Line Items]      
Gross 40   40
Accumulated Amortization 28   26
Net 12   14
Software      
Finite-Lived Intangible Assets [Line Items]      
Gross 168,612   167,105
Accumulated Amortization 38,690   34,792
Net 129,922   132,313
Trademarks and trade names      
Finite-Lived Intangible Assets [Line Items]      
Gross 7,564   7,564
Accumulated Amortization 2,226   2,061
Net 5,338   5,503
Customer lists and other      
Finite-Lived Intangible Assets [Line Items]      
Gross 105,871   106,090
Accumulated Amortization 63,065   61,734
Net $ 42,806   $ 44,356