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Financial Instruments (Tables) | 12 Months Ended
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Dec. 31, 2016
Derivatives, Fair Value [Line Items] |
Schedule Of Pretax Effect On Net Income (Loss) And Other Comprehensive Income (Loss) Of Derivative Instruments Classified As Cash Flow Hedges | The pretax effect on net income (loss) and other comprehensive income (loss) of derivative instruments classified as cash flow hedges and described in the previous paragraphs for years ended December 31, 2016, 2015, and 2014 is summarized in the tables below:
(In Thousands) | Cash Flow Derivative Hedges
| Aluminum Futures Contracts |  | Foreign Currency Forwards and Options
Years Ended December 31, | 2016 |  | 2015 |  | 2014 |  | 2016 |  | 2015 |  | 2014
Amount of pre-tax gain (loss) recognized in other comprehensive income | $ | 394 |  |  | $ | (5,055 | ) |  | $ | 542 |  |  | $ | — |  |  | $ | — |  |  | $ | (120 | )
Location of gain (loss) reclassified from accumulated other comprehensive income into net income (effective portion) | Cost of sales |  |  | Cost of sales |  |  | Cost of sales |  |  | Cost of sales |  |  | Cost of sales |  |  | Cost of sales |
Amount of pre-tax gain (loss) reclassified from accumulated other comprehensive income to net income (effective portion) | $ | (1,630 | ) |  | $ | (3,538 | ) |  | $ | 631 |  |  | $ | 62 |  |  | $ | 62 |  |  | $ | 16 |
Aluminum Futures Contracts |
Derivatives, Fair Value [Line Items] |
Summary Of Location And Fair Value Of Derivative Financial Instruments | The table below summarizes the location and gross amounts of aluminum derivative contract fair values (Level 2) in the consolidated balance sheets as of December 31, 2016 and 2015:
| December 31, 2016 |  | December 31, 2015
(In Thousands) | Balance Sheet Account |  | Fair Value |  | Balance Sheet Account |  | Fair Value
Derivatives Designated as Hedging Instruments |  |  |  |  |  |  |
Asset derivatives: Aluminum futures contracts | Prepaid expenses and other |  | $ | 308 |  |  | Accrued expenses |  | $ | 44 |
Liability derivatives: Aluminum futures contracts | Prepaid expenses and other |  | $ | (37 | ) |  | Accrued expenses |  | $ | (1,797 | )
Derivatives Not Designated as Hedging Instruments |  |  |  |  |  |  |
Asset derivatives: Aluminum futures contracts | Prepaid expenses and other |  | $ | — |  |  | Accrued expenses |  | $ | — |
Liability derivatives: Aluminum futures contracts | Prepaid expenses and other |  | $ | — |  |  | Accrued expenses |  | $ | — |
Net asset (liability) |  |  | $ | 271 |  |  |  |  | $ | (1,753 | )
Foreign Currency Forward Contracts |
Derivatives, Fair Value [Line Items] |
Summary Of Location And Fair Value Of Derivative Financial Instruments |

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- Definition Tabular disclosure of the effective portion of the gains and losses on derivative instruments designated (and non-derivative instruments) designated and qualifying in cash flow hedges and net investment hedges that was recognized in other comprehensive income (loss) during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959 + Details
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- Definition Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624163-113959 + Details
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