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Other Income/(Expense) - Net (Schedule Of Other Income/(Expense) - Net) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Other Income/(Expense) - Net [Abstract] |  |  |  |
Market value adjustment on assets held in deferred compensation trust | $ 3,655 | $ 7,408 | $ 6,693 | $ (2,164)
Interest income | 138 | 116 | 230 | 225
Other-net | (8) | (10) | 464 | (13)
Total other income/(expense) - net | $ 3,785 | $ 7,514 | $ 7,387 | $ (1,952)

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