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Consolidated Statement Of Shareholders' Equity (Parenthetical) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
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Aug. 31, 2020 | Aug. 31, 2021 | Aug. 31, 2020
Statement of Stockholders' Equity [Abstract] |  |  |
Shares issued, tax benefit | $ 7.3 | $ 2.2 | $ 13.0

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