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Accumulated Other Comprehensive Income (Loss) (Schedule Of After-Tax Changes In Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Selling, general and administrative | $ 23,130 | $ 20,676 | $ 69,006 | $ 63,452
Beginning of Period |  |  | (179,987) | (176,669)
Other comprehensive income (loss) before reclassifications |  |  | (9,356) | (14,616)
Amounts reclassified from accumulated other comprehensive income (loss) |  |  | 8,445 | 8,080
Net other comprehensive income (loss) - current period | (5,054) | (1,664) | (911) | (6,536)
End of Period | (180,898) | (183,205) | (180,898) | (183,205)
Income (loss) before income taxes | 17,090 | (40,899) | 59,819 | 1,821
Income Tax Expense (Benefit) | (43) | (6,699) | 8,424 | 3,135
Net income | 17,133 | (34,200) | 51,395 | (1,314)
Foreign Currency Translation |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Beginning of Period |  |  | (96,940) | (86,178)
Other comprehensive income (loss) before reclassifications |  |  | (6,291) | (11,571)
Amounts reclassified from accumulated other comprehensive income (loss) |  |  | 0 | 0
Net other comprehensive income (loss) - current period |  |  | (6,291) | (11,571)
End of Period | (103,231) | (97,749) | (103,231) | (97,749)
Gain (Loss) on Derivative Financial Instruments |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Beginning of Period |  |  | (1,601) | 459
Other comprehensive income (loss) before reclassifications |  |  | (3,065) | (3,045)
Amounts reclassified from accumulated other comprehensive income (loss) |  |  | 2,209 | 154
Net other comprehensive income (loss) - current period |  |  | (856) | (2,891)
End of Period | (2,457) | (2,432) | (2,457) | (2,432)
Pension & Other Post-retirement Benefit Adjustment |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Beginning of Period |  |  | (81,446) | (90,950)
Other comprehensive income (loss) before reclassifications |  |  | 0 | 0
Amounts reclassified from accumulated other comprehensive income (loss) |  |  | 6,236 | 7,926
Net other comprehensive income (loss) - current period |  |  | 6,236 | 7,926
End of Period | (75,210) | (83,024) | (75,210) | (83,024)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Gain (Loss) on Derivative Financial Instruments |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Income (loss) before income taxes | (902) | (492) | (2,654) | 64
Income Tax Expense (Benefit) | (179) | 23 | (445) | 218
Net income | (723) | (515) | (2,209) | (154)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Pension & Other Post-retirement Benefit Adjustment |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Income Tax Expense (Benefit) | (593) | (789) | (1,778) | (2,312)
Net income | (2,079) | (2,703) | (6,236) | (7,926)
Amortization Of Prior Service Costs And Net Gains Loss | (2,672) | (3,492) | (8,014) | (10,238)
Aluminum Futures Contracts [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Gain (Loss) on Derivative Financial Instruments |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Cost of goods sold | (816) | 300 | 2,039 | (1,244)
Cost of Sales [Member] | Foreign Currency Forward Contracts [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Gain (Loss) on Derivative Financial Instruments |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Cost of goods sold | $ 15 | $ 15 | $ 46 | $ 46

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- Definition Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=118930883&loc=d3e637-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=118930883&loc=d3e681-108580 + Details
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