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Stock Repurchase Plan | 3 Months Ended
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Oct. 31, 2015
Payments for Repurchase of Equity [Abstract] |
Stock Repurchase Plan | Repurchase Program On March 9, 2006, the Company’s Board of Directors approved the repurchase of up to 3,000,000 shares of common stock and on July 16, 2008 approved an increase of the Company’s common stock repurchase authorization by an additional 3,000,000 shares. During the three months ended October 31, 2015 and 2014, the Company repurchased 377,830 shares (at a total cost of $40.0 million) and zero shares of common stock, respectively. Since inception of its share repurchase program through October 31, 2015, the Company has repurchased 5,326,941 shares at a cost of approximately $233.2 million. As of October 31, 2015, 673,059 shares remained available to repurchase under the existing share repurchase program. On December 4, 2015, the Company's Board of Directors approved an increase in the number of shares authorized to be repurchased under the share repurchase program by an additional 1,500,000 shares. As a result, 2,173,059 shares are available to repurchase under the share repurchase program. Shares of common stock purchased pursuant to the repurchase program will be held as treasury shares and may be used for the issuance of shares 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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