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Stock-based Payment Compensation (Details Textual)	3 Months Ended
	Oct. 31, 2019 shares
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Number of stock options exercised	4,710,000
Stock Based Compensation (Textual)
Shares available for calculating intrinsic value (in shares)	9,841,658

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Stock based Compensation

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of contingently issuable shares. Contingently issuable shares are those shares that are issuable for little or no cash contingent on certain conditions being met.

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Number of share options (or share units) exercised during the current period.

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