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Components of Accumulated other comprehensive loss (Tables) | 9 Months Ended
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Sep. 30, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Components of Accumulated Other Comprehensive Loss |
| September 30, 2013 | December 31, 2012
Defined benefit plan liabilities | $ | (139,426 | ) | $ | (153,225 | )
Equity in investee other comprehensive income (1) | (12,712 | ) | (12,712 | )
Unrealized loss on financial instruments | (1,017 | ) | (878 | )
Other comprehensive loss before income tax effect | (153,155 | ) | (166,815 | )
Income tax effect (2) | 14,475 |  | 15,623 |
Accumulated other comprehensive loss | $ | (138,680 | ) | $ | (151,192 | )
(1) | The amount includes our equity in the other comprehensive income of Mt. Holly Aluminum Company.
(2)The allocation of the income tax effect to the components of other comprehensive income is as follows:
| September 30, 2013 | December 31, 2012
Defined benefit plan liabilities | $ | 14,663 |  | $ | 15,784 |
Equity in investee other comprehensive income | 436 |  | 488 |
Unrealized loss on financial instruments | (624 | ) | (649 | )

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- Definition Tabular disclosure of components of comprehensive income (loss). Includes, but is not limited to, foreign currency translation adjustments, foreign currency transactions designated as economic hedges of a net investment in foreign entity, gain (loss) and prior service cost (credit) for pension plans and other postretirement benefit plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=28358780&loc=d3e526-108580 + Details
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