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Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 31, 2018 | Oct. 31, 2016 | Jul. 31, 2016 | Jul. 31, 2018 | Jul. 31, 2017 | Jul. 31, 2016
Share-Based Compensation Arrangement By Share-Based Payment Award, Options Exercisable [Abstract] |  |  |  |  |  |
Options Exercised | 80,000 | 18,000,000 | 2,260,000 |  |  |
Exercise Price | $ 6.54 | $ 7.70 | $ 9.32 |  |  |
Shares Net Settled for Exercise | 11,996 | 5,408,972 | 821,296 |  |  |
Net Shares to Employee | 0 | 5,255,322 | 586,304 |  |  |
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures | 68,004 | 7,335,706 | 852,400 |  |  |
Share Price for Withholding | $ 43.60 | $ 25.62 | $ 25.65 |  |  |
Tax Withholding (in 000's) | $ 0 | $ 134,615 | $ 15,039 | $ 1,115 | $ 135,433 | $ 15,039

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- Definition Represents the number of net shares distributed to employee after shares settled for exercise and withheld for taxes. + References No definition available. + Details
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- References No definition available. + Details
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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 25 -Paragraph 19A -URI http://asc.fasb.org/extlink&oid=107668666&loc=SL79513924-113897 + 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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