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Income Taxes (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jul. 01, 2018
Jul. 02, 2017
Jul. 01, 2018
Jul. 02, 2017
Income Tax Disclosure [Abstract]        
Income tax (benefit) expense $ 15.6 $ (1.5) $ 9.2 $ (4.2)