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Stockholders' Equity (Tables) | 12 Months Ended
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Apr. 30, 2013
Stockholders' Equity Note [Abstract] |
Summary Of Share Repurchase And Retirements | A summary of our share repurchase and retirements for fiscal years 2013, 2012 and 2011 is as follows:
(in 000s) |
|  | Shares |  |  | Cost |
Fiscal year: |  |  |  |
2013 |  | 21,259 |  |  | $ | 315,000 |
2012 |  | 14,554 |  |  | 199,989 |
2011 |  | 18,950 |  |  | 279,947 |

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