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Income Taxes (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Dec. 27, 2015
Dec. 27, 2015
Jun. 28, 2015
Income Tax Disclosure [Abstract]      
U.S. statutory tax rate   35.00%  
Income Tax Benefit, Research and Development, Amount $ 1.8    
Unrecognized tax benefits balance 18.4 $ 18.4 $ 17.8
Unrecognized Tax Benefits, Period Increase (Decrease)   0.6  
Unrecognized Tax Benefits that Would Impact Effective Tax Rate 18.4 18.4  
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit $ 0.2 $ 0.2