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Basic and Diluted Earnings Per Share | 3 Months Ended
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Jul. 31, 2013
Basic and Diluted Earnings Per Share | 2. Basic and Diluted Earnings Per Share Basic earnings per common share was computed by dividing net earnings attributable to common stockholders by the weighted-average number of common shares outstanding. Diluted earnings per common share was computed by dividing net earnings attributable to common stockholders by the weighted-average number of common shares outstanding plus dilutive common equivalent shares. Dilutive common equivalent shares include all in-the-money outstanding options or other contracts to issue common stock as if they were exercised or converted. During the three months ended July 31, 2013 and 2012, options to purchase 0.3 million shares and 0.8 million shares, respectively, were outstanding but not included in the computation of diluted earnings per share because they were anti-dilutive. The following table summarizes basic and diluted earnings per share calculations:
|  | Three Months Ended July 31, |
|  | 2013 |  |  | 2012 |
|  | (in thousands, except per share data) |
Net earnings attributable to common stockholders |  | $ | 11,417 |  |  | $ | 10,418 |
Weighted-average common shares outstanding: |  |  |  |  |  |  |  |
Basic weighted-average number of common shares outstanding |  |  | 47,665 |  |  |  | 46,810 |
Effect of dilutive securities: |  |  |  |  |  |  |  |
Restricted stock |  |  | 659 |  |  |  | 661 |
Stock options |  |  | 195 |  |  |  | 184 |
Diluted weighted-average number of common shares outstanding |  |  | 48,519 |  |  |  | 47,655 |
Net earnings per common share: |  |  |  |  |  |  |  |
Basic earnings per share |  | $ | 0.24 |  |  | $ | 0.22 |
Diluted earnings per share |  | $ | 0.24 |  |  | $ | 0.22 |

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