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Stock Repurchase Plan | 12 Months Ended
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Jul. 31, 2017
Payments for Repurchase of Equity [Abstract] |
Stock Repurchase Plan | Share Repurchase Program On March 9, 2006, the Company’s Board of Directors approved a share repurchase program, authorizing the Company to repurchase up to 3,000,000 shares of common stock. On July 16, 2008, the Company’s Board of Directors increased the authorization by an additional 3,000,000 shares, and on December 4, 2015, the Company’s Board of Directors increased the authorization by an additional 1,500,000 shares for a total authorization to repurchase shares of up to 7,500,000 shares. During the year ended July 31, 2017, the Company repurchased 1,317 shares (at a total cost of $0.2 million). During the year ended July 31, 2016, the Company repurchased 485,866 shares (at a total cost of $53.8 million).The Company did not repurchase any shares of common stock during the year ended July 31, 2015. Since inception of this stock repurchase program through July 31, 2017, the Company has repurchased 5,436,294 shares at a cost of approximately $247.2 million. As of July 31, 2017, 2,063,706 shares remained available to repurchase under the existing repurchase authorization. These authorizations have no expiration date. Shares of common stock purchased pursuant to the repurchase program will be held as treasury shares and may be used for issuance under the Company’s employee share award plan.

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- Definition Tabular disclosure of treasury stock, including, but not limited to, average cost per share, description of share repurchase program, shares repurchased, shares held for each class of treasury stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23315-112656 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23285-112656 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23309-112656 + Details
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