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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - USD ($) $ in Millions | 3 Months Ended
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Feb. 29, 2020 | Nov. 30, 2019 | Aug. 31, 2019 | Feb. 28, 2019 | Nov. 30, 2018 | Aug. 31, 2018
Provision (benefit) for income taxes | $ (16.8) |  |  | $ (8.2) |  |
Pension and postretirement adjustments, tax portion | $ 0.0 | $ 0.0 | $ 0.0 | $ 0.0 | $ 0.8 | $ 0.0
ASU 2014-09 |  |  |  |  |  |
Provision (benefit) for income taxes |  |  |  |  |  | $ 16.0
Common Class A |  |  |  |  |  |
Dividends declared per class A and common share (in Dollars per share) | $ 0.15 | $ 0.15 | $ 0.15 | $ 0.15 | $ 0.15 | $ 0.15

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