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Property, Plant and Equipment (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Dec. 31, 2024
Oct. 01, 2023
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Property, plant and equipment, net [Abstract]          
Property, plant and equipment, gross $ 2,236.6   $ 2,236.6 $ 2,190.1  
Less: accumulated depreciation and depletion (1,246.9)   (1,246.9) (1,203.3)  
Property, plant and equipment, net 989.7   989.7 986.8  
Property, Plant and Equipment [Abstract]          
Gain on sale of assets     12.3 0.0 $ 0.0
Non-cash impairment of long-lived assets charge     0.0 71.7 0.0
Depreciation and depletion expense     79.5 79.4 $ 76.3
Engineered Solutions [Member]          
Property, Plant and Equipment [Abstract]          
Gain on sale of assets 12.3        
Consumer & Specialties [Member]          
Property, Plant and Equipment [Abstract]          
Non-cash impairment of long-lived assets charge   $ 71.7      
Mineral Rights and Reserves [Member]          
Property, plant and equipment, net [Abstract]          
Property, plant and equipment, gross 560.0   560.0 552.6  
Land [Member]          
Property, plant and equipment, net [Abstract]          
Property, plant and equipment, gross 43.0   43.0 44.5  
Buildings [Member]          
Property, plant and equipment, net [Abstract]          
Property, plant and equipment, gross 202.0   202.0 207.3  
Machinery and Equipment [Member]          
Property, plant and equipment, net [Abstract]          
Property, plant and equipment, gross 1,236.4   1,236.4 1,201.1  
Furniture and Fixtures and Other [Member]          
Property, plant and equipment, net [Abstract]          
Property, plant and equipment, gross 144.5   144.5 140.0  
Construction in Progress [Member]          
Property, plant and equipment, net [Abstract]          
Property, plant and equipment, gross $ 50.7   $ 50.7 $ 44.6