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Acquisitions and Divestitures - Pro forma information (Details) - Stavola - Construction Products - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Business Acquisition [Line Items] |  |
Unaudited pro-forma revenues | $ 2,769.8 | $ 2,563.3
Unaudited pro-forma income before income taxes | $ 113.3 | $ 93.5

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