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Employee Benefit Plans - Pretax Intrinsic Value of Options Exercised and Their Average Exercise Prices (Detail) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
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Oct. 31, 2016 | Oct. 31, 2015 | Oct. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |  |  |
Intrinsic value | $ 51,408 | $ 44,104 | $ 32,094
Average exercise price per share | $ 30.06 | $ 26.06 | $ 24.47

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- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + 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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