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Stock Compensation Plan (Schedule of Share Based Compensation SARs Activity) (Details) - $ / shares shares in Thousands | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Jul. 31, 2016 | Jul. 31, 2015 | Jul. 31, 2014 | Jul. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | 2,381 | 2,385 | 2,756 | 2,753
Stock Appreciation Rights (SARs) [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number |  | 567 |  |
Awards, granted (in shares) | 198 |  |  |
Awards, vested (in shares) | 302 |  |  |
Awards, forfeited (in shares) | 22 |  |  |
Awards, outstanding ending balance (in shares) | 441 |  |  |
Weighted-average grant-date fair value, outstanding beginning balance (in dollars per share) | $ 24.56 |  |  |
Weighted-average grant-date fair value, granted (in dollars per share) | 35.20 |  |  |
Weighted-average grant-date fair value, vested (in dollars per share) | 22.77 |  |  |
Weighted-average grant-date fair value, forfeited (in dollars per share) | 27.87 |  |  |
Weighted-average grant-date fair value, outstanding ending balance (in dollars per share) | $ 30.39 |  |  |

X
- Definition The number of shares reserved for issuance under stock option agreements and stock appreciation rights awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options and stock appreciation rights. + References No definition available. + Details
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- Definition The number of stock appreciation rights, that were forfeited during the reporting period. + References No definition available. + Details
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- Definition The weighted average fair value as of the grant date of stock appreciation rights that were not exercised or put into effect during the reporting period as a result of the occurrence of a terminating event specified in the contractual agreement of the plan. + References No definition available. + Details
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- Definition The number of grants made during the period on stock appreciation rights. + References No definition available. + Details
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- Definition The weighted average fair value at grant date for nonvested stock appreciation rights issued during the period. + References No definition available. + Details
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- Definition The number of non-vested stock appreciation rights, that validly exist and are outstanding as of the balance sheet date. + References No definition available. + Details
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- Definition The weighted average fair value of nonvested stock appreciation rights for which the employer is contingently obligated to issue equity instruments to an employee who has not yet satisfied service criteria necessary to gain title to the underlying shares or units. + References No definition available. + Details
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- Definition The number of stock appreciation rights, that vested during the reporting period. + References No definition available. + Details
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- Definition The weighted average fair value as of grant date pertaining to stock appreciation rights for which the grantee gained the right during the reporting period, by satisfying service requirements, to retain shares or units, in accordance with the terms of the arrangement. + References No definition available. + Details
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- Details
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