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Stockholders' Equity (Tables) | 3 Months Ended
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Mar. 31, 2012
Stockholders' Equity [Abstract] |
Total share-based compensation expense |
|  | Three Months Ended March 31, |
|  | 2012 |  |  | 2011 |
2012 Three-year PSU Awards |  | $ | 0.7 |  |  | $ | — |
2011 Three-year PSU Awards |  |  | 0.3 |  |  |  | 0.9 |
2010 Three-year PSU Awards |  |  | (0.4 | ) |  |  | 0.8 |
2009 Three-year PSU Awards |  |  | — |  |  |  | 1.5 |
2012 CEO Incentive Compensation |  |  | 1.4 |  |  |  | — |
SLO Awards |  |  | 0.3 |  |  |  | 0.4 |
Other long-term share-based incentive compensation programs |  |  | 2.3 |  |  |  | 2.2 |
Total share-based incentive compensation expense (1) |  | $ | 4.6 |  |  | $ | 5.8 |
(1) | The amounts included above do not include the expense related to our U.S. profit sharing contributions made in the form of our common stock as such these contributions are not considered share-based incentive compensation.
Estimated amount of total share-based compensation expense |
|  | 2012 |  |  | 2013 |  |  | 2014 |  |  | Total |
2012 Three-year PSU Awards |  | $ | 2.2 |  |  | $ | 2.8 |  |  | $ | 2.9 |  |  | $ | 7.9 |
2011 Three-year PSU Awards |  |  | 1.9 |  |  |  | 2.5 |  |  |  | — |  |  |  | 4.4 |
2010 Three-year PSU Awards |  |  | 2.8 |  |  |  | — |  |  |  | — |  |  |  | 2.8 |
2012 CEO Incentive Compensation |  |  | 4.0 |  |  |  | — |  |  |  | — |  |  |  | 4.0 |
SLO Awards |  |  | 0.9 |  |  |  | 0.3 |  |  |  | — |  |  |  | 1.2 |
Other long-term share-based incentive compensation programs |  |  | 7.8 |  |  |  | 7.2 |  |  |  | 3.4 |  |  |  | 18.4 |
Total share-based incentive compensation expense (1) |  | $ | 19.6 |  |  | $ | 12.8 |  |  | $ | 6.3 |  |  | $ | 38.7 |
(1) | The amounts included above do not include the expense related to our U.S. profit sharing contributions made in the form of our common stock as such these contributions are not considered share-based incentive compensation.

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- Definition Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 718 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph (h)(1) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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