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Accumulated Other Comprehensive Loss (Tables) | 12 Months Ended
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Dec. 31, 2012
Equity [Abstract] |
Summary of components of accumulated other comprehensive loss, net of tax | The following summary sets forth the components of accumulated other comprehensive loss, net of tax:
|  | Currency Translation Adjustments |  | Net Actuarial Loss (1) |  | Prior Service Credit (1) |  | Transition Obligation (1) |  | Unrealized Gain (Loss) on Derivatives |  | Accumulated Other Comprehensive Loss
|  | (In thousands)
January 1, 2010 |  | $ | 32,978 |  |  | (419,445 | ) |  | 7,482 |  |  | 52 |  |  | 14 |  |  | (378,919 | )
Amortization |  | — |  |  | 12,416 |  |  | (1,570 | ) |  | (18 | ) |  | — |  |  | 10,828 |
Pension curtailment |  | — |  |  | 1,074 |  |  | — |  |  | — |  |  | — |  |  | 1,074 |
Current period change |  | 13,009 |  |  | (22,577 | ) |  | — |  |  | — |  |  | (14 | ) |  | (9,582 | )
December 31, 2010 |  | 45,987 |  |  | (428,532 | ) |  | 5,912 |  |  | 34 |  |  | — |  |  | (376,599 | )
Amortization |  | — |  |  | 13,146 |  |  | (1,621 | ) |  | (22 | ) |  | — |  |  | 11,503 |
Current period change |  | (17,768 | ) |  | (184,301 | ) |  | — |  |  | — |  |  | — |  |  | (202,069 | )
December 31, 2011 |  | 28,219 |  |  | (599,687 | ) |  | 4,291 |  |  | 12 |  |  | — |  |  | (567,165 | )
Amortization |  | — |  |  | 20,315 |  |  | (1,657 | ) |  | — |  |  | — |  |  | 18,658 |
Current period change |  | 29,629 |  |  | (68,753 | ) |  | — |  |  | — |  |  | 12 |  |  | (39,112 | )
December 31, 2012 |  | $ | 57,848 |  |  | (648,125 | ) |  | 2,634 |  |  | 12 |  |  | 12 |  |  | (587,619 | )
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(1) | Amounts pertain to our pension and/or postretirement benefit plans.
The following summary sets forth the taxes related to items of other comprehensive (loss) income:
|  | 2012 |  | 2011 |  | 2010
|  | (In thousands)
Tax benefit (expense) on change in unrealized components of defined benefit plans: |  |  |  |  |  |
Tax benefit on net actuarial loss arising during the period |  | $ | 41,012 |  |  |  | 98,642 |  |  | 13,242 |
Tax expense on amortization of actuarial loss, transition obligation and prior service credit |  | (10,016 | ) |  |  | (6,414 | ) |  | (6,037 | )
Tax expense on settlements and other |  | — |  | — |  | — |  |  | (413 | )
Tax benefit on other comprehensive loss |  | $ | 30,996 |  |  | 92,228 |  |  | 6,792 |

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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=20435746&loc=SL7669686-108580 + Details
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