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Income Taxes (Schedule Of Deferred Tax Assets And Deferred Tax Liabilities) (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Deferred tax assets: |  |
Post-employment and other employee benefits | $ 15,088 | $ 17,375
Foreign tax credit and other carryforwards | 25,856 | 32,452
Capitalized research and experimental costs | 736 | 1,935
Environmental reserves | 1,040 | 1,133
Inventory adjustments | 5,767 | 10,545
Long-term contract option amortization | 934 | 982
Previously taxed income | 8,304 | 5,229
Other | 2,695 | 2,246
Total gross deferred tax assets | 60,420 | 71,897
Less: valuation allowance | (9,269) | (10,550)
Total deferred tax assets | 51,151 | 61,347
Deferred tax liabilities: |  |
Fixed assets | 51,410 | 51,595
Inventory | 14,649 | 8,834
Goodwill and acquired intangibles | 10,089 | 9,502
Mark-to-market hedges | 3,903 | 2,824
Other | 4,205 | 3,079
Total deferred tax liabilities | 84,256 | 75,834
Net deferred tax liability | $ (33,105) | $ (14,487)

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