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v3.21.2

Condensed Consolidated Statements of Shareholders' Equity (Parenthetical) - $ / shares shares in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jul. 31, 2021 | Apr. 30, 2021 | Jan. 31, 2021 | Jul. 31, 2020 | Apr. 30, 2020 | Jan. 31, 2020 | Oct. 31, 2020 | Oct. 31, 2019
Statement of Stockholders' Equity [Abstract] |  |  |  |  |  |  |  |
Accounting Standards Update [Extensible List] |  |  |  |  |  |  | Accounting Standards Update 2016-13 | us-gaap:AccountingStandardsUpdate201602Member
Purchase of treasury shares, shares | 76,724 | 127,297 | 27,347 | 53,735 | 300,894 | 26,223 |  |
Dividends declared per share | $ 0.39 | $ 0.39 | $ 0.39 | $ 0.38 | $ 0.38 | $ 0.38 |  |

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