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Accounting for Stock-Based Compensation (Tables) | 9 Months Ended
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Apr. 30, 2016
Share-based Compensation [Abstract] |
Summary Of Stock Option Activity | The following table summarizes stock option activity during the nine months ended April 30, 2016:
| Options Outstanding |  | Weighted Average Exercise Price
Outstanding at July 31, 2015 | 7,191,442 |  |  | $ | 29.38 |
Granted | 966,950 |  |  | $ | 28.16 |
Exercised | (643,199 | ) |  | $ | 18.96 |
Canceled | (389,961 | ) |  | $ | 36.97 |
Outstanding at April 30, 2016 | 7,125,232 |  |  | $ | 29.75 |
Summary Of Information Concerning Outstanding And Exercisable Options | The following table summarizes information concerning outstanding and exercisable options as of April 30, 2016:
Range of Exercise Prices |  | Number Outstanding |  | Weighted Average Remaining Contractual Life (Years) |  | Weighted Average Exercise Price of Outstanding Options |  | Number Exercisable |  | Weighted Average Exercise Price of Exercisable Options
$ 0.00 to $17.69 |  | 877,972 |  |  | 1.83 |  | $ | 17.20 |  |  | 877,972 |  |  | $ | 17.20 |
$17.70 to $23.69 |  | 1,359,206 |  |  | 2.79 |  | $ | 21.47 |  |  | 1,359,206 |  |  | $ | 21.47 |
$23.70 to $29.69 |  | 1,668,035 |  |  | 7.36 |  | $ | 28.55 |  |  | 752,435 |  |  | $ | 29.13 |
$29.70 to $35.69 |  | 1,569,644 |  |  | 6.02 |  | $ | 34.22 |  |  | 1,542,877 |  |  | $ | 34.26 |
$35.70 and above |  | 1,650,375 |  |  | 8.08 |  | $ | 40.20 |  |  | 815,804 |  |  | $ | 40.80 |
|  | 7,125,232 |  |  | 5.68 |  | $ | 29.75 |  |  | 5,348,294 |  |  | $ | 28.48 |

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- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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