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Income Taxes (Details) - USD ($)
$ in Millions
3 Months Ended
Sep. 30, 2017
Oct. 01, 2016
Jul. 01, 2017
Income Tax Disclosure [Abstract]      
Income tax expense (benefit) $ 2.5 $ 5.7  
Tax benefit related to income tax intraperiod tax allocation 2.7    
Unrecognized tax benefits 39.0   $ 38.9
Interest and penalties accrued 1.9    
Unrecognized tax benefits that may be recognized during the next twelve months $ 0.1