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Income Taxes (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended
Apr. 02, 2017
Apr. 03, 2016
Income Tax Disclosure [Abstract]    
Effective tax rate 32.00% 34.90%
Possible reduction in liabilities for uncertain tax positions $ 1.0  
Adjustments for New Accounting Pronouncement [Member]    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Other income tax expense (benefit) $ (0.8)