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Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended
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Jul. 31, 2015 | Apr. 30, 2015 | Oct. 31, 2014 | Oct. 31, 2013 | Jan. 31, 2013
Share-Based Compensation Arrangement By Share-Based Payment Award, Options Exercisable [Abstract] |  |  |  |  |
Options Exercised | 200,000 | 139,690 | 201,333 | 14,000 | 73,228
Exercise Price | $ 12.02 | $ 20.27 | $ 19.59 | $ 16.43 | $ 8.89
Shares Net Settled for Exercise | 66,602 | 76,021 | 124,621 | 7,241 | 18,127
Shares Withheld for Taxes | 52,158 | 20,656 | 35,416 | 2,519 | 17,461
Net Shares to Employee | 81,240 | 43,013 | 41,296 | 4,240 | 37,640
Share Price for Withholding | $ 36.08 | $ 37.27 | $ 31.65 | $ 31.77 | $ 35.91
Tax Withholding (in 000's) | $ 1,882 | $ 770 | $ 1,121 | $ 80 | $ 627

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- References No definition available. + Details
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- Definition Number of shares during the period as a result of the Shares net settled for exercise. + References No definition available. + Details
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- Definition Number of shares during the period as a result of the withheld for taxes. + References No definition available. + Details
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- Definition Amount of Tax Expenses Paid by Company releated to the Share-based Compensation to the taxing authority. + References No definition available. + 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 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 2: 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 3: 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=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28,29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 + Details
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