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Net Income Per Share (Tables) | 6 Months Ended
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Jan. 31, 2014
Earnings Per Share [Abstract] |
Schedule of reconciliation of basic weighted shares outstanding to diluted weighted average shares outstanding |
|  |  | Three Months Ended January 31, |  |  |  | Six Months Ended January 31, |
|  |  | 2014 |  |  |  | 2013 |  |  |  | 2014 |  |  |  | 2013 |
Basic weighted average shares outstanding |  |  | 125,564 |  |  |  | 124,709 |  |  |  | 125,512 |  |  |  | 124,505 |
Effect of dilutive securities - stock options |  |  | 5,537 |  |  |  | 4,811 |  |  |  | 5,392 |  |  |  | 4,492 |
Diluted weighted average shares outstanding |  |  | 131,101 |  |  |  | 129,520 |  |  |  | 130,904 |  |  |  | 128,997 |

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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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