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Income Taxes (Summary Of Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Income Tax Disclosure [Abstract] |  |
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts | $ 2,708 | $ 3,742
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits | 2,912 | 2,734
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Pensions | 1,912 | 1,794
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities | 1,196 | 2,276
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Impairment LossesImpaired assets | 703 | 1,201
Deferred Tax Assets, Unrealized Losses on Available-for-Sale Securities, Gross | 0 | 1,871
Deferred Tax Assets, Goodwill and Intangible assets | 479 | 783
Deferred Tax Assets, Other | 6,584 | 6,492
Total Deferred Tax Assets | 16,494 | 20,893
Deferred Tax Liabilities, Investments | 3,709 | 0
Deferred Tax Liabilities, Other | 6,116 | 3,555
Total Deferred Tax Liabilities | 9,825 | 3,555
Deferred tax asset, net | $ 6,669 | $ 17,338

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