v3.26.1
Goodwill and Other Intangible Assets - Goodwill (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Goodwill [Line Items]    
Goodwill $ 1,348.2 [1] $ 1,329.0
Construction Products    
Goodwill [Line Items]    
Goodwill 868.0 848.8
Engineered Structures    
Goodwill [Line Items]    
Goodwill $ 480.2 $ 480.2
[1] (unaudited)