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Income Taxes (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended
Sep. 24, 2017
Jun. 25, 2017
Operating Loss Carryforwards [Line Items]    
U.S. statutory tax rate 35.00%  
Unrecognized tax benefits balance $ 13.3 $ 13.3
Document Period End Date Sep. 24, 2017  
Unrecognized Tax Benefits that Would Impact Effective Tax Rate $ 13.3  
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit $ 0.2