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Income Taxes (Narrative) (Details) - USD ($)
$ in Millions
 9 Months Ended
Mar. 31, 2019
Jun. 24, 2018
Operating Loss Carryforwards [Line Items]    
U.S. statutory tax rate 21.00%  
Unrecognized tax benefits balance $ 8.5 $ 8.7
Unrecognized Tax Benefits, Period Increase (Decrease) 0.2  
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions 0.5  
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations 0.7  
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit 1.1  
Domestic Tax Authority [Member]    
Operating Loss Carryforwards [Line Items]    
Deferred Tax Assets, Valuation Allowance, Current   122.2
Valuation Allowance, Deferred Tax Asset Decrease, Amount (8.8)  
Foreign Tax Authority [Member]    
Operating Loss Carryforwards [Line Items]    
Deferred Tax Assets, Valuation Allowance, Current   $ 5.2
Valuation Allowance, Deferred Tax Asset Decrease, Amount $ (5.0)