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CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
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Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Statement of Stockholders' Equity [Abstract] |  |  |  |
Pension and postretirement benefits, tax | $ 0.1 | $ 0.2 | $ 0.4 | $ 0.4
Cash dividends declared per share on common stock (in dollars per share) | $ 0.46 | $ 0.41 | $ 1.38 | $ 1.23

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