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Intangible Assets Intangible Assets (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Mar. 25, 2018
Mar. 26, 2017
Mar. 25, 2018
Mar. 26, 2017
Goodwill and Intangible Assets Disclosure [Abstract]        
Amortization of Intangible Assets $ 10.6 $ 13.0 $ 30.4 $ 29.9