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EARNINGS PER SHARE (Tables) | 12 Months Ended
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Dec. 31, 2013
Earnings Per Share [Abstract] |
Basic and Diluted Earnings Per Share Table |
| Years ended December 31,
Computation of Income per Share | 2013 |  | 2012 |  | 2011
| (In millions, except per share data)
Net income | $ | 178.6 |  |  | $ | 149.6 |  |  | $ | 241.7 |
Basic shares | 79.9 |  |  | 80.1 |  |  | 80.0 |
Basic net income per share | $ | 2.24 |  |  | $ | 1.87 |  |  | $ | 3.02 |
Diluted shares: |  |  |  |  |
Basic shares | 79.9 |  |  | 80.1 |  |  | 80.0 |
Stock-based compensation | 1.0 |  |  | 0.9 |  |  | 0.8 |
Diluted shares | 80.9 |  |  | 81.0 |  |  | 80.8 |
Diluted net income per share | $ | 2.21 |  |  | $ | 1.85 |  |  | $ | 2.99 |

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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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