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Contingencies Contingencies (Details) - USD ($)
$ in Millions
3 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Loss Contingencies [Line Items]    
Receivables, Long-term Contracts or Programs $ 8.0 $ 26.0
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability $ 20.0