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Legal Actions And Contingencies (Narrative) (Details) - USD ($) $ in Thousands | 1 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2018 | Apr. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2020 | Dec. 31, 2019 | Jun. 30, 2020
Loss Contingencies [Line Items] |  |  |  |  |  |
Income taxes payable |  |  |  | $ 35,166 |  | $ 64,755
Contingent Obligations Under Recourse Provisions [Member] |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Receivables sold with limited recourse |  |  |  | 72,600 | $ 59,300 |
Maximum potential contingent liability |  |  |  | 27,000 |  | 22,800
Contingent provision |  |  |  | $ 7,900 |  | $ 6,600
Australian Taxation Office [Member] |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Percentage of penalties on additional income tax | 50.00% |  |  |  |  |
Tax liabilities related to assessments | $ 75,900 | $ 75,900 | $ 151,700 |  |  |
Accrued interest |  |  | $ 38,400 |  |  |

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