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Summary Of Significant Accounting Policies (Narrative) (Details) - USD ($) $ in Millions | 9 Months Ended |
--- | --- | ---
Mar. 31, 2018 | Jul. 01, 2018
Scenario, Forecast [Member] | Accounting Standards Update 2016-16 [Member] |  |
Summary Of Significant Accounting Policies [Line Items] |  |
Cumulative effect adjustment to retained earnings and reduction prepaid taxes |  | $ 60.0
Minimum [Member] |  |
Summary Of Significant Accounting Policies [Line Items] |  |
Contract term under revenue recognition | 1 year |
Maximum [Member] |  |
Summary Of Significant Accounting Policies [Line Items] |  |
Contract term under revenue recognition | 3 years |

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