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Equity-Accounted Investments And Other Long-Term Assets (Summary Of Unrealized Gain (Loss) On Investments) (Details) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Jun. 30, 2019
Schedule Of Equity And Held To Maturity Investments [Line Items] |  |
Cost basis | $ 26,993 | $ 26,993
Carrying value | 26,993 | 0
MobiKwik [Member] |  |
Schedule Of Equity And Held To Maturity Investments [Line Items] |  |
Cost basis | 26,993 | 26,993
Carrying value | 26,993 | 0
Cedar Cellular Investment1 Ltd [Member] |  |
Schedule Of Equity And Held To Maturity Investments [Line Items] |  |
Cost basis | 0 | 0
Carrying value | $ 0 | $ 0

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- Definition Schedule Of Equity And Held To Maturity Investments [Line Items] + References No definition available. + Details
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- Definition The sum of the realized and unrealized net gain (loss) on trading securities during the period. + References No definition available. + Details
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- Definition Cost of investments in equity securities and other forms of securities that provide ownership interests classified as trading. + References No definition available. + Details
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- Details
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- Details
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