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Basis Of Presentation (Schedule Of Other Operating Income) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Other operating (income)/expense | $ (12,207) | $ (78) | $ 28,935 | $ (9,001)
CARES Act Grant [Member] |  |  |  |
Other operating (income)/expense | (8,805) |  | 32,184 |
Incremental PTO [Member] | CARES Act Grant [Member] |  |  |  |
Other operating (income)/expense |  |  | 21,425 |
Hard Costs [Member] | CARES Act Grant [Member] |  |  |  |
Other operating (income)/expense | 6,945 |  | $ 10,759 |
Incremental Medicare Cap [Member] | CARES Act Grant [Member] |  |  |  |
Other operating (income)/expense | (2,250) |  |  |
Lost Revenue [Member] | CARES Act Grant [Member] |  |  |  |
Other operating (income)/expense | $ (13,500) |  |  |

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