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Consolidated Statements of Shareholders' Equity (Parenthetical) - USD ($) $ in Thousands | 12 Months Ended
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Oct. 31, 2018 | Oct. 31, 2017 | Oct. 31, 2016
Dividends declared per share | $ 1.25 | $ 1.11 | $ 0.99
Accumulated Other Comprehensive Loss [Member] |  |  |
Tax on settlement loss (gain) recognized | $ (52) | $ (299) | $ 332
Tax on net prior service cost (credit) occurring during the year | 189 | 75 | (558)
Tax on net actuarial gain (loss) occurring during the year | $ (802) | $ (4,628) | $ 8,642

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