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Summary Of Significant Accounting Policies (Schedule Of Other Operating Income) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Other operating income | $ (3,691) | $ (987) | $ 75,095
CARES Act Grant [Member] |  |  |
Other operating income |  |  | 80,225
Lost Revenue [Member] | CARES Act Grant [Member] |  |  |
Other operating income |  |  | 44,784
Incremental PTO [Member] | CARES Act Grant [Member] |  |  |
Other operating income |  |  | 21,425
Hard Costs [Member] | CARES Act Grant [Member] |  |  |
Other operating income |  |  | $ 14,016

X
- 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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Period Type: | duration

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- Details
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- Details
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Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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