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Stock-Based Compensation - Summarized Activity Related to Director Deferred Compensation Shares (Detail) - Directors [Member] - Deferred Compensation Share Equivalent Units [Member] shares in Thousands | 6 Months Ended
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Apr. 30, 2017 $ / shares shares
Deferred Compensation Arrangement With Individual Share Based Payments [Line Items] |
Number of Shares, Outstanding, Beginning balance | shares | 99
Number of Shares, Dividend equivalents | shares | 1
Number of Shares, Distributions | shares | (5)
Number of Shares, Outstanding, Ending balance | shares | 95
Weighted-Average Grant Date Fair Value, Beginning balance | $ / shares | $ 41.72
Weighted-Average Grant Date Fair Value, Dividend equivalents | $ / shares | 118.57
Weighted-Average Grant Date Fair Value, Distributions | $ / shares | 26.89
Weighted-Average Grant Date Fair Value, Ending balance | $ / shares | $ 42.92

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- Definition Share based compensation arrangement by share based payment award vested equity instruments other than options weighted average grant date fair value. + References No definition available. + 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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- Definition Number of equity instruments other than options outstanding, including both vested and non-vested instruments. + 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 (c)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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