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Revenue - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Mar. 31, 2019
Mar. 31, 2019
Jul. 01, 2018
Revenue from Contract with Customer [Abstract]      
Contract with customer liability     $ 143.5
Contract with customer liability, revenue recognized in the period $ 14.1 $ 39.8