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Stock-based compensation - Summarized Activity Related to Director Deferred Compensation Shares (Detail) - Directors - Deferred Compensation Share Equivalent Units shares in Thousands | 6 Months Ended
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Apr. 30, 2023 $ / shares shares
Number of Shares |
Outstanding, Beginning balance (in shares) | shares | 90
Distributions (in shares) | shares | (8)
Outstanding, Ending balance (in shares) | shares | 82
Weighted-Average Grant Date Fair Value |
Beginning balance (in dollars per share) | $ / shares | $ 77.70
Distributions (in dollars per share) | $ / shares | 51.97
Ending balance (in dollars per share) | $ / shares | $ 81.77

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- Definition Number of equity instruments other than options outstanding, including both vested and non-vested instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(ii) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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