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Earnings Per Share (Tables) | 12 Months Ended
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Apr. 30, 2013
Earnings Per Share [Abstract] |
Computations Of Basic And Diluted Earnings Per Share | The computations of basic and diluted earnings per share from continuing operations are as follows:
(in 000s, except per share amounts) |
Year ended April 30, |  | 2013 |  |  | 2012 |  |  | 2011 |
Net income from continuing operations attributable to shareholders |  | $ | 465,158 |  |  | $ | 345,968 |  |  | $ | 392,547 |
Net income allocated to participating securities |  | (542 | ) |  | (455 | ) |  | (1,007 | )
Net income from continuing operations attributable to common shareholders |  | $ | 464,616 |  |  | $ | 345,513 |  |  | $ | 391,540 |
Basic weighted average common shares |  | 273,057 |  |  | 297,863 |  |  | 309,230 |
Potential dilutive shares |  | 1,302 |  |  | 738 |  |  | 547 |
Dilutive weighted average common shares |  | 274,359 |  |  | 298,601 |  |  | 309,777 |
Earnings per share from continuing operations attributable to common shareholders: |  |  |  |  |  |
Basic |  | 1.70 |  |  | 1.16 |  |  | 1.27 |
Diluted |  | 1.69 |  |  | 1.16 |  |  | 1.27 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations. + References No definition available. + Details
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