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Legal Actions And Contingencies (Narrative) (Details) - USD ($) $ in Thousands | 1 Months Ended |
--- | --- | ---
Mar. 31, 2018 | Jun. 30, 2017
Loss Contingencies [Line Items] |  |
Income taxes payable | $ 124,569 | $ 29,150
Australian Taxation Office [Member] |  |
Loss Contingencies [Line Items] |  |
Additional tax liabilities related to assessments | 151,700 |
Interest related to assessments | $ 38,400 |
Minimum [Member] | Australian Taxation Office [Member] |  |
Loss Contingencies [Line Items] |  |
Tax year under audit | 2009 |
Maximum [Member] | Australian Taxation Office [Member] |  |
Loss Contingencies [Line Items] |  |
Tax year under audit | 2013 |
Due April 2018 [Member] | Australian Taxation Office [Member] |  |
Loss Contingencies [Line Items] |  |
Income taxes payable | $ 75,900 |

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