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Equity-Accounted Investments And Other Long-Term Assets (Summary Of Unrealized Gain (Loss) On Investments) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Jun. 30, 2019 | Jun. 30, 2018
Schedule Of Equity And Held To Maturity Investments [Line Items] |  |
Cost basis | $ 26,993 | $ 10,395
Carrying value | 26,993 | 10,395
MobiKwik [Member] |  |
Schedule Of Equity And Held To Maturity Investments [Line Items] |  |
Cost basis | 26,993 |
Carrying value | $ 26,993 |
Cedar Cellular [Member] |  |
Schedule Of Equity And Held To Maturity Investments [Line Items] |  |
Cost basis |  | 10,395
Carrying value |  | 10,395
Interest income reclassified to the cost basis |  | $ 1,400

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- Details
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