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Recently Issued Accounting Standards - Additional Information (Detail) - New Accounting Guidance Adopted [Member] - USD ($) | 3 Months Ended
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Jan. 31, 2018 | Jan. 31, 2017
New Accounting Pronouncements Or Change In Accounting Principle [Line Items] |  |
Excess tax benefit from share based compensation , operating activities | $ 4,748 |
Excess tax benefit from share-based compensation, reclassification from financing activities to operating activities |  | $ 3,144

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- Definition Excess tax benefit from share-based compensation reclassification from financing activities to operating activities. + References No definition available. + Details
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- Definition Amount of cash outflow for realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 20 -Section 55 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=96864182&loc=d3e11374-113907 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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