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Net Earnings Per Share (Tables) | 6 Months Ended
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Jun. 30, 2014
Net Earnings Per Share [Abstract] |
Net Earnings Per Share | The calculations of net earnings per share – basic and net earnings per share – diluted were as follows:
|  | 3 Months Ended |  |  | 6 Months Ended |
|  | June 30, |  |  | June 30, |
|  | 2014 |  |  | 2013 |  |  | 2014 |  |  | 2013 |
Net earnings per share – basic: |  |  |  |  |  |  |  |  |  |  |  |
Net earnings available to common shareholders |  | $ | 109.8 |  |  | $ | 68.2 |  |  | $ | 179.9 |  |  | $ | 92.1 |
Weighted-average common shares outstanding |  |  | 79.9 |  |  |  | 77.4 |  |  |  | 79.9 |  |  |  | 77.3 |
|  | $ | 1.37 |  |  | $ | 0.88 |  |  | $ | 2.25 |  |  | $ | 1.19 |
Net earnings per share – diluted: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net earnings available to common shareholders |  | $ | 109.8 |  |  | $ | 68.2 |  |  | $ | 179.9 |  |  | $ | 92.1 |
Weighted-average common shares outstanding |  |  | 79.9 |  |  |  | 77.4 |  |  |  | 79.9 |  |  |  | 77.3 |
Effect of dilutive securities – stock options |  |  | 0.7 |  |  |  | 0.6 |  |  |  | 0.7 |  |  |  | 0.6 |
Effect of other share-based awards |  |  | 0.8 |  |  |  | 0.6 |  |  |  | 0.8 |  |  |  | 0.7 |
|  |  | 81.4 |  |  |  | 78.6 |  |  |  | 81.4 |  |  |  | 78.6 |
|  | $ | 1.35 |  |  | $ | 0.87 |  |  | $ | 2.21 |  |  | $ | 1.17 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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