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Accumulated Other Comprehensive Income (Loss) | 6 Months Ended
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Jun. 30, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items] |
Comprehensive Income (Loss) Note [Text Block] | The following table summarizes the after-tax changes in accumulated other comprehensive income (loss) for the six months ended June 30, 2017:
(In Thousands) | Foreign currency translation adjustment |  | Gain (loss) on derivative financial instruments |  | Pension and other post-retirement benefit adjustments |  | Total
Beginning balance, January 1, 2017 | $ | (93,970 | ) |  | $ | 863 |  |  | $ | (90,127 | ) |  | $ | (183,234 | )
Other comprehensive income (loss) before reclassifications | 2,674 |  |  | 335 |  |  | — |  |  | 3,009 |
Amounts reclassified from accumulated other comprehensive income (loss) | — |  |  | (373 | ) |  | 3,900 |  |  | 3,527 |
Net other comprehensive income (loss) - current period | 2,674 |  |  | (38 | ) |  | 3,900 |  |  | 6,536 |
Ending balance, June 30, 2017 | $ | (91,296 | ) |  | $ | 825 |  |  | $ | (86,227 | ) |  | $ | (176,698 | )
The following table summarizes the after-tax changes in accumulated other comprehensive income (loss) for the six months ended June 30, 2016:
(In Thousands) | Foreign currency translation adjustment |  | Gain (loss) on derivative financial instruments |  | Pension and other post-retirement benefit adjustments |  | Total
Beginning balance, January 1, 2016 | $ | (112,807 | ) |  | $ | (373 | ) |  | $ | (95,539 | ) |  | $ | (208,719 | )
Other comprehensive income (loss) before reclassifications | 23,648 |  |  | 86 |  |  | — |  |  | 23,734 |
Amounts reclassified from accumulated other comprehensive income (loss) | — |  |  | 931 |  |  | 4,607 |  |  | 5,538 |
Net other comprehensive income (loss) - current period | 23,648 |  |  | 1,017 |  |  | 4,607 |  |  | 29,272 |
Ending balance, June 30, 2016 | $ | (89,159 | ) |  | $ | 644 |  |  | $ | (90,932 | ) |  | $ | (179,447 | )
Reclassifications of balances out of accumulated other comprehensive income (loss) into net income (loss) for the three months ended June 30, 2017 are summarized as follows:
(In Thousands) | Amount reclassified from other comprehensive income (loss) |  | Location of gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (loss)
Gain (loss) on derivative financial instruments: |  |  |
Aluminum future contracts, before taxes | $ | 321 |  |  | Cost of sales
Foreign currency forward contracts, before taxes | 16 |  |  | Cost of sales
Total, before taxes | 337 |  |  |
Income tax expense (benefit) | 125 |  |  | Income taxes
Total, net of tax | $ | 212 |  |  |
Amortization of pension and other post-retirement benefits: |  |  |
Actuarial gain (loss) and prior service costs, before taxes | $ | (3,061 | ) |  | (a)
Income tax expense (benefit) | (1,111 | ) |  | Income taxes
Total, net of tax | $ | (1,950 | ) |  |
(a) | This component of accumulated other comprehensive income (loss) is included in the computation of net periodic pension cost (see Note 9 for additional detail).
Reclassifications of balances out of accumulated other comprehensive income (loss) into net income (loss) for the six months ended June 30, 2017 are summarized as follows:
(In Thousands) | Amount reclassified from other comprehensive income (loss) |  | Location of gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (loss)
Gain (loss) on derivative financial instruments: |  |  |
Aluminum future contracts, before taxes | $ | 554 |  |  | Cost of sales
Foreign currency forward contracts, before taxes | 31 |  |  | Cost of sales
Total, before taxes | 585 |  |  |
Income tax expense (benefit) | 212 |  |  | Income taxes
Total, net of tax | $ | 373 |  |  |
Amortization of pension and other post-retirement benefits: |  |  |
Actuarial gain (loss) and prior service costs, before taxes | $ | (6,122 | ) |  | (a)
Income tax expense (benefit) | (2,222 | ) |  | Income taxes
Total, net of tax | $ | (3,900 | ) |  |
(a) | This component of accumulated other comprehensive income (loss) is included in the computation of net periodic pension cost (see Note 9 for additional detail).
Reclassifications of balances out of accumulated other comprehensive income (loss) into net income (loss) for the three months ended June 30, 2016 are summarized as follows:
(In Thousands) | Amount reclassified from other comprehensive income (loss) |  | Location of gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (loss)
Gain (loss) on derivative financial instruments: |  |  |
Aluminum future contracts, before taxes | $ | (525 | ) |  | Cost of sales
Foreign currency forward contracts, before taxes | 16 |  |  | Cost of sales
Total, before taxes | (509 | ) |  |
Income tax expense (benefit) | (182 | ) |  | Income taxes
Total, net of tax | $ | (327 | ) |  |
Amortization of pension and other post-retirement benefits: |  |  |
Actuarial gain (loss) and prior service costs, before taxes | $ | (3,336 | ) |  | (a)
Income tax expense (benefit) | (1,211 | ) |  | Income taxes
Total, net of tax | $ | (2,125 | ) |  |
(a) | This component of accumulated other comprehensive income (loss) is included in the computation of net periodic pension cost (see Note 9 for additional detail).
Reclassifications of balances out of accumulated other comprehensive income (loss) into net income (loss) for the six months ended June 30, 2016 are summarized as follows:
(In Thousands) | Amount reclassified from other comprehensive income (loss) |  | Location of gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (loss)
Gain (loss) on derivative financial instruments: |  |  |
Aluminum future contracts, before taxes | $ | (1,509 | ) |  | Cost of sales
Foreign currency forward contracts, before taxes | 31 |  |  | Cost of sales
Total, before taxes | (1,478 | ) |  |
Income tax expense (benefit) | (547 | ) |  | Income taxes
Total, net of tax | $ | (931 | ) |  |
Amortization of pension and other post-retirement benefits: |  |  |
Actuarial gain (loss) and prior service costs, before taxes | $ | (6,673 | ) |  | (a)
Income tax expense (benefit) | (2,066 | ) |  | Income taxes
Total, net of tax | $ | (4,607 | ) |  |
(a) | This component of accumulated other comprehensive income (loss) is included in the computation of net periodic pension cost (see Note 9 for additional detail).
Cost of goods sold | The following table summarizes the after-tax changes in accumulated other comprehensive income (loss) for the six months ended June 30, 2017:
(In Thousands) | Foreign currency translation adjustment |  | Gain (loss) on derivative financial instruments |  | Pension and other post-retirement benefit adjustments |  | Total
Beginning balance, January 1, 2017 | $ | (93,970 | ) |  | $ | 863 |  |  | $ | (90,127 | ) |  | $ | (183,234 | )
Other comprehensive income (loss) before reclassifications | 2,674 |  |  | 335 |  |  | — |  |  | 3,009 |
Amounts reclassified from accumulated other comprehensive income (loss) | — |  |  | (373 | ) |  | 3,900 |  |  | 3,527 |
Net other comprehensive income (loss) - current period | 2,674 |  |  | (38 | ) |  | 3,900 |  |  | 6,536 |
Ending balance, June 30, 2017 | $ | (91,296 | ) |  | $ | 825 |  |  | $ | (86,227 | ) |  | $ | (176,698 | )
The following table summarizes the after-tax changes in accumulated other comprehensive income (loss) for the six months ended June 30, 2016:
(In Thousands) | Foreign currency translation adjustment |  | Gain (loss) on derivative financial instruments |  | Pension and other post-retirement benefit adjustments |  | Total
Beginning balance, January 1, 2016 | $ | (112,807 | ) |  | $ | (373 | ) |  | $ | (95,539 | ) |  | $ | (208,719 | )
Other comprehensive income (loss) before reclassifications | 23,648 |  |  | 86 |  |  | — |  |  | 23,734 |
Amounts reclassified from accumulated other comprehensive income (loss) | — |  |  | 931 |  |  | 4,607 |  |  | 5,538 |
Net other comprehensive income (loss) - current period | 23,648 |  |  | 1,017 |  |  | 4,607 |  |  | 29,272 |
Ending balance, June 30, 2016 | $ | (89,159 | ) |  | $ | 644 |  |  | $ | (90,932 | ) |  | $ | (179,447 | )

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- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e689-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669619-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e640-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e716-108580 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e709-108580 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e637-108580 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e681-108580 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Reclassification Adjustments -URI http://asc.fasb.org/extlink&oid=6522872 + Details
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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669686-108580 + Details
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