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Other Operating Expenses (Schedule Of Other Operating Expenses/(Income)) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2019 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Total other operating expenses |  | $ 9,132 | $ 1,300 | $ 90,880
Litigation Settlement [Member] |  |  |  |
Total other operating expenses | $ 6,000 | 6,000 | 796 | 84,476
Loss On Sale Of Transportation Equipment [Member] |  |  |  |
Total other operating expenses |  | 2,266 |  | 5,266
Loss On Disposal Of Property And Equipment [Member] |  |  |  |
Total other operating expenses |  | $ 866 | $ 504 |
Program Closure Expenses [Member] |  |  |  |
Total other operating expenses |  |  |  | $ 1,138

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- Definition The net amount of other operating income and expenses, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operations. + References No definition available. + Details
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- Details
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- Details
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- Details
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