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Subsequent Events (Details) - Subsequent Event
$ in Millions
3 Months Ended
Sep. 29, 2018
USD ($)
employee
Jul. 18, 2018
USD ($)
Subsequent Event [Line Items]    
Estimated restructuring charges | $ $ 19.0  
Minimum    
Subsequent Event [Line Items]    
Number of employees expected to be reduced (employee) | employee 200  
Maximum    
Subsequent Event [Line Items]    
Number of employees expected to be reduced (employee) | employee 250  
Senior Convertible Notes due 2033 | Convertible Debt    
Subsequent Event [Line Items]    
Aggregate amount of debt repurchased | $   $ 134.3