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Income Taxes (Schedule Of Deferred Tax Liabilities And Assets) (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Deferred income tax liabilities: |  |
Amortization of goodwill and identifiable intangibles | $ 22,739 | $ 43,546
Depreciation | 0 | 24,178
Foreign currency translation gain adjustment | 433 | 1,424
Deferred Tax Liabilities, Investments | 8,602 | 4,131
Derivative financial instruments | 167 | 493
Total deferred income tax liabilities | 31,941 | 73,772
Deferred Tax Assets, Property, Plant and Equipment | 4,917 | 0
Deferred income tax assets: |  |
Pensions | 19,626 | 30,733
Employee benefits | 6,842 | 10,262
Inventory | 2,884 | 3,622
Excess capital losses | 4,695 | 11,726
Tax benefit on U.S. federal, state and foreign NOL and credit carryforwards | 33,384 | 4,921
Asset write-offs, divestitures and environmental accruals | 1,754 | 2,515
Timing adjustment for unrecognized tax benefits on uncertain tax positions, including portion relating to interest and penalties | 184 | 395
Allowance for doubtful accounts | 406 | 198
Other | 261 | 1,568
Deferred income tax assets before valuation allowance | 74,953 | 65,940
Less: Valuation allowance | 28,499 | 12,694
Net deferred income tax (assets) liabilities | 14,513 | (20,526)
Deferred Tax Liabilities, Net |  | (20,526)
Deferred Tax Assets, Net, Noncurrent | 16,636 | 584
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent | 46,454 | 53,246
Pension and other postretirement benefit obligations, net | $ 2,123 | $ 21,110

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