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Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 31, 2016 | Jul. 31, 2016 | Jul. 31, 2015 | Apr. 30, 2015 | Oct. 31, 2014 | Jul. 31, 2017 | Jul. 31, 2016 | Jul. 31, 2015
Share-Based Compensation Arrangement By Share-Based Payment Award, Options Exercisable [Abstract] |  |  |  |  |  |  |  |
Options Exercised | 18,000,000 | 2,260,000 | 400,000 | 279,380 | 402,666 |  |  |
Exercise Price | $ 7.70 | $ 9.32 | $ 6.01 | $ 10.14 | $ 9.80 |  |  |
Shares Net Settled for Exercise | 5,408,972 | 821,296 | 133,204 | 152,042 | 249,242 |  |  |
Net Shares to Employee | 5,255,322 | 586,304 | 104,316 | 41,312 | 70,832 |  |  |
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures | 7,335,706 | 852,400 | 162,480 | 86,026 | 82,592 |  |  |
Share Price for Withholding | $ 25.62 | $ 25.65 | $ 18.04 | $ 18.64 | $ 15.83 |  |  |
Tax Withholding (in 000's) | $ 134,615 | $ 15,039 | $ 1,882 | $ 770 | $ 1,121 | $ 135,433 | $ 15,039 | $ 3,822

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- Definition Represents the number of net impact on number of shares settled resulting from exercise. + References No definition available. + Details
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- Definition The price per shares for withholding for taxes. + References No definition available. + Details
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- Definition Amount of cash outflow to satisfy an employee's income tax withholding obligation as part of a net-share settlement of a share-based award. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 25 -Paragraph 19A -URI http://asc.fasb.org/extlink&oid=96949009&loc=SL79513924-113897 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585 + Details
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- Definition Weighted average price at which option holders acquired shares when converting their stock options into shares. + References No definition available. + Details
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- Definition For net-share settlement of share-based awards when the employer settles employees' income tax withholding obligations, this element represents the number of shares the employees use to repay the employer. + References No definition available. + Details
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- Definition Number of share options (or share units) exercised during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(2) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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