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Accumulated Other Comprehensive Income (Loss)
6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
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, 2021:
(In thousands)Foreign
currency
translation
adjustment
Gain (loss) on
derivative
financial
instruments
Pension and other post-retirement benefit adjustmentsTotal
Beginning balance, January 1, 2021$(84,149)$2,264 $(96,519)$(178,404)
Other comprehensive income (loss) before reclassifications1,345 2,724 — 4,069 
Amounts reclassified from accumulated other comprehensive income (loss)— (1,492)6,637 5,145 
Net other comprehensive income (loss) - current period1,345 1,232 6,637 9,214 
Ending balance, June 30, 2021$(82,804)$3,496 $(89,882)$(169,190)
The following table summarizes the after-tax changes in accumulated other comprehensive income (loss) for the six months ended June 30, 2020:
(In thousands)Foreign
currency
translation
adjustment
Gain (loss) on
derivative
financial
instruments
Pension and other post-retirement benefit adjustmentsTotal
Beginning balance, January 1, 2020$(100,663)$(1,307)$(95,681)$(197,651)
Other comprehensive income (loss) before reclassifications(12,003)(6,242)— (18,245)
Amounts reclassified from accumulated other comprehensive income (loss)— 3,725 5,862 9,587 
Net other comprehensive income (loss) - current period(12,003)(2,517)5,862 (8,658)
Ending balance, June 30, 2020$(112,666)$(3,824)$(89,819)$(206,309)

Reclassifications of balances out of accumulated other comprehensive income (loss) into net income (loss) for the three months ended June 30, 2021 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$1,372 Cost of sales
Foreign currency forward contracts, before taxes(147)Selling, general & administrative
Foreign currency forward contracts, before taxes16 Cost of sales
Total, before taxes1,241 
Income tax expense (benefit)257 Income tax expense (benefit)
Total, net of tax$984 
Amortization of pension and other post-retirement benefits:
Actuarial gain (loss) and prior service costs, before taxes$(4,240)(a)
Income tax expense (benefit)(922)Income tax expense (benefit)
Total, net of tax$(3,318)
(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, 2021 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$2,012 Cost of sales
Foreign currency forward contracts, before taxes(149)Selling, general & administrative
Foreign currency forward contracts, before taxes33 Cost of sales
Total, before taxes1,896 
Income tax expense (benefit)404 Income tax expense (benefit)
Total, net of tax$1,492 
Amortization of pension and other post-retirement benefits:
Actuarial gain (loss) and prior service costs, before taxes$(8,483)(a)
Income tax expense (benefit)(1,846)Income tax expense (benefit)
Total, net of tax$(6,637)
(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 June 30, 2020 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$(1,551)Cost of sales
Foreign currency forward contracts, before taxes(1,798)Selling, general & administrative
Foreign currency forward contracts, before taxes16 Cost of sales
Total, before taxes(3,333)
Income tax expense (benefit)(721)Income tax expense (benefit)
Total, net of tax$(2,612)
Amortization of pension and other post-retirement benefits:
Actuarial gain (loss) and prior service costs, before taxes$(3,766)(a)
Income tax expense (benefit)(835)Income tax expense (benefit)
Total, net of tax$(2,931)
(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, 2021:
(In thousands)Foreign
currency
translation
adjustment
Gain (loss) on
derivative
financial
instruments
Pension and other post-retirement benefit adjustmentsTotal
Beginning balance, January 1, 2021$(84,149)$2,264 $(96,519)$(178,404)
Other comprehensive income (loss) before reclassifications1,345 2,724 — 4,069 
Amounts reclassified from accumulated other comprehensive income (loss)— (1,492)6,637 5,145 
Net other comprehensive income (loss) - current period1,345 1,232 6,637 9,214 
Ending balance, June 30, 2021$(82,804)$3,496 $(89,882)$(169,190)
The following table summarizes the after-tax changes in accumulated other comprehensive income (loss) for the six months ended June 30, 2020:
(In thousands)Foreign
currency
translation
adjustment
Gain (loss) on
derivative
financial
instruments
Pension and other post-retirement benefit adjustmentsTotal
Beginning balance, January 1, 2020$(100,663)$(1,307)$(95,681)$(197,651)
Other comprehensive income (loss) before reclassifications(12,003)(6,242)— (18,245)
Amounts reclassified from accumulated other comprehensive income (loss)— 3,725 5,862 9,587 
Net other comprehensive income (loss) - current period(12,003)(2,517)5,862 (8,658)
Ending balance, June 30, 2020$(112,666)$(3,824)$(89,819)$(206,309)