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EARNINGS PER SHARE | 12 Months Ended
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Dec. 31, 2013
Earnings Per Share [Abstract] |
EARNINGS PER SHARE | EARNINGS PER SHARE Basic and diluted income per share are computed by dividing net income by the weighted average number of common shares outstanding. Diluted net income per share reflects the dilutive effect of stock-based compensation.
| 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 |
The computation of dilutive shares from stock-based compensation does not include 0.6 million, 1.0 million and 0.9 million shares in 2013, 2012 and 2011, respectively, as their effect would have been anti-dilutive.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1278-109256 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=32703322&loc=d3e4984-109258 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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