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Earnings Per Share | 12 Months Ended
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Dec. 31, 2016
Earnings Per Share [Abstract] |
Earnings Per Share | Earnings Per Share: Basic earnings per share are computed by dividing net income by the weighted-average number of common shares outstanding during the period. Diluted earnings per share are computed by dividing net income by the sum of the weighted-average number of shares and the number of equivalent shares assumed outstanding, if dilutive, under our stock-based compensation plans. The computations of basic and diluted earnings per share for Income from continuing operations were as follows (in millions, except per share data):
| For the Years Ended December 31,
| 2016 |  | 2015 |  | 2014
Net income | $ | 277.8 |  |  | $ | 186.6 |  |  | $ | 205.8 |
Add: Loss from discontinued operations | 0.8 |  |  | 0.6 |  |  | 2.3 |
Income from continuing operations | $ | 278.6 |  |  | $ | 187.2 |  |  | $ | 208.1 |
Weighted-average shares outstanding – basic | 43.4 |  |  | 44.9 |  |  | 47.9 |
Add: Potential effect of diluted securities attributable to stock-based payments | 0.6 |  |  | 0.7 |  |  | 0.7 |
Weighted-average shares outstanding – diluted | 44.0 |  |  | 45.6 |  |  | 48.6 |
Earnings per share - Basic: |  |  |  |  |
Income from continuing operations | $ | 6.41 |  |  | $ | 4.17 |  |  | $ | 4.35 |
Loss from discontinued operations | (0.02 | ) |  | (0.01 | ) |  | (0.05 | )
Net income | $ | 6.39 |  |  | $ | 4.16 |  |  | $ | 4.30 |
Earnings per share - Diluted: |  |  |  |  |
Income from continuing operations | $ | 6.34 |  |  | $ | 4.11 |  |  | $ | 4.28 |
Loss from discontinued operations | (0.02 | ) |  | (0.02 | ) |  | (0.05 | )
Net income | $ | 6.32 |  |  | $ | 4.09 |  |  | $ | 4.23 |
The following stock appreciation rights were outstanding but not included in the diluted earnings per share calculation because the assumed exercise of such rights would have been anti-dilutive (in millions, except for per share data):
| For the Years Ended December 31,
| 2016 |  | 2015 |  | 2014
Weighted-average number of shares | — |  |  | — |  |  | 0.3 |
Price ranges per share | $ | — |  |  | $ | — |  |  | $81.11 - $92.64

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