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Employee Benefits (Tables) | 3 Months Ended
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Mar. 31, 2012
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract] |
Schedule of Net Periodic Costs | The components of net periodic cost for the Domestic Pension Plan, the significant foreign pension plans and the domestic postretirement benefit plan are listed below.
| Domestic Pension Plan |  | Foreign Pension Plans |  | Domestic Postretirement Benefit Plan
Three months ended March 31, | 2012 |  | 2011 |  | 2012 |  | 2011 |  | 2012 |  | 2011
Service cost | $ | 0.0 |  |  | $ | 0.0 |  |  | $ | 2.7 |  |  | $ | 2.2 |  |  | $ | 0.0 |  |  | $ | 0.1 |
Interest cost | 1.6 |  |  | 1.7 |  |  | 5.4 |  |  | 5.8 |  |  | 0.6 |  |  | 0.7 |
Expected return on plan assets | (1.9 | ) |  | (1.8 | ) |  | (4.5 | ) |  | (4.7 | ) |  | 0.0 |  |  | 0.0 |
Amortization of: |  |  |  |  |  |  |  |  |  |  |
Transition obligation | 0.0 |  |  | 0.0 |  |  | 0.0 |  |  | 0.0 |  |  | 0.0 |  |  | 0.0 |
Prior service cost | 0.0 |  |  | 0.0 |  |  | 0.0 |  |  | 0.0 |  |  | 0.0 |  |  | 0.0 |
Unrecognized actuarial losses | 1.5 |  |  | 1.7 |  |  | 0.3 |  |  | 0.2 |  |  | 0.1 |  |  | 0.0 |
Net periodic cost | $ | 1.2 |  |  | $ | 1.6 |  |  | $ | 3.9 |  |  | $ | 3.5 |  |  | $ | 0.7 |  |  | $ | 0.8 |

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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 715 -SubTopic 20 -Publisher FASB -Number -Article -Subparagraph (h) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920 + Details
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