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Accumulated Other Comprehensive Income (Loss)
 9 Months Ended
Sep. 30, 2018
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 nine months ended September 30, 2018:
(In thousands)
Foreign
currency
translation
adjustment
 
Gain (loss) on
derivative
financial
instruments
 
Pension and
other
post-retirement
benefit
adjustments
 
Total
Beginning balance, January 1, 2018
$
(86,178
)
 
$
459

 
$
(90,950
)
 
$
(176,669
)
Other comprehensive income (loss) before reclassifications
(11,571
)
 
(3,045
)
 
—

 
(14,616
)
Amounts reclassified from accumulated other comprehensive income (loss)
—

 
154

 
7,926

 
8,080

Net other comprehensive income (loss) - current period
(11,571
)
 
(2,891
)
 
7,926

 
(6,536
)
Ending balance, September 30, 2018
$
(97,749
)
 
$
(2,432
)
 
$
(83,024
)
 
$
(183,205
)
    
The following table summarizes the after-tax changes in accumulated other comprehensive income (loss) for the nine months ended September 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
9,817

 
817

 
—

 
10,634

Amounts reclassified from accumulated other comprehensive income (loss)
—

 
(529
)
 
5,754

 
5,225

Net other comprehensive income (loss) - current period
9,817

 
288

 
5,754

 
15,859

Ending balance, September 30, 2017
$
(84,153
)
 
$
1,151

 
$
(84,373
)
 
$
(167,375
)

Reclassifications of balances out of accumulated other comprehensive income (loss) into net income (loss) for the three months ended September 30, 2018 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
$
300

 
Cost of sales
Foreign currency forward contracts, before taxes
(807
)
 
Selling, general & administrative
Foreign currency forward contracts, before taxes
15

 
Cost of sales
Total, before taxes
(492
)
 
 
Income tax expense (benefit)
23

 
Income taxes
Total, net of tax
$
(515
)
 
 
Amortization of pension and other post-retirement benefits:
 
 
 
Actuarial gain (loss) and prior service costs, before taxes
$
(3,492
)
 
(a)
Income tax expense (benefit)
(789
)
 
Income taxes
Total, net of tax
$
(2,703
)
 
 
(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 for the nine months ended September 30, 2018 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
$
1,244

 
Cost of sales
Foreign currency forward contracts, before taxes
(1,226
)
 
Selling, general & administrative
Foreign currency forward contracts, before taxes
46

 
Cost of sales
Total, before taxes
64

 
 
Income tax expense (benefit)
218

 
Income taxes
Total, net of tax
$
(154
)
 
 
Amortization of pension and other post-retirement benefits:
 
 
 
Actuarial gain (loss) and prior service costs, before taxes
$
(10,238
)
 
(a)
Income tax expense (benefit)
(2,312
)
 
Income taxes
Total, net of tax
$
(7,926
)
 
 
(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 for the three months ended September 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
$
231

 
Cost of sales
Foreign currency forward contracts, before taxes
15

 
Cost of sales
Total, before taxes
246

 
 
Income tax expense (benefit)
90

 
Income taxes
Total, net of tax
$
156

 
 
Amortization of pension and other post-retirement benefits:
 
 
 
Actuarial gain (loss) and prior service costs, before taxes
$
(2,911
)
 
(a)
Income tax expense (benefit)
(1,057
)
 
Income taxes
Total, net of tax
$
(1,854
)
 
 
(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 for the nine months ended September 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
$
785

 
Cost of sales
Foreign currency forward contracts, before taxes
46

 
Cost of sales
Total, before taxes
831

 
 
Income tax expense (benefit)
302

 
Income taxes
Total, net of tax
$
529

 
 
Amortization of pension and other post-retirement benefits:
 
 
 
Actuarial gain (loss) and prior service costs, before taxes
$
(9,033
)
 
(a)
Income tax expense (benefit)
(3,279
)
 
Income taxes
Total, net of tax
$
(5,754
)
 
 
(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 nine months ended September 30, 2018:
(In thousands)
Foreign
currency
translation
adjustment
 
Gain (loss) on
derivative
financial
instruments
 
Pension and
other
post-retirement
benefit
adjustments
 
Total
Beginning balance, January 1, 2018
$
(86,178
)
 
$
459

 
$
(90,950
)
 
$
(176,669
)
Other comprehensive income (loss) before reclassifications
(11,571
)
 
(3,045
)
 
—

 
(14,616
)
Amounts reclassified from accumulated other comprehensive income (loss)
—

 
154

 
7,926

 
8,080

Net other comprehensive income (loss) - current period
(11,571
)
 
(2,891
)
 
7,926

 
(6,536
)
Ending balance, September 30, 2018
$
(97,749
)
 
$
(2,432
)
 
$
(83,024
)
 
$
(183,205
)
    
The following table summarizes the after-tax changes in accumulated other comprehensive income (loss) for the nine months ended September 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
9,817

 
817

 
—

 
10,634

Amounts reclassified from accumulated other comprehensive income (loss)
—

 
(529
)
 
5,754

 
5,225

Net other comprehensive income (loss) - current period
9,817

 
288

 
5,754

 
15,859

Ending balance, September 30, 2017
$
(84,153
)
 
$
1,151

 
$
(84,373
)
 
$
(167,375
)