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Segment Information - Segment Sales (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Segment Reporting Information      
Net sales $ 1,668.3 $ 1,391.5 $ 1,216.1
Segment Reporting Information, Profit (Loss)      
Segment operating profits 452.6 422.2 397.9
Interest expense (61.8) (51.7) (47.1)
Interest income 7.5 4.0 4.9
(Provision) benefit for income taxes (58.0) (44.7) (53.7)
Depreciation and amortization (108.8) (109.9) (100.2)
Pension and postretirement settlement and curtailment (charges) income, net (0.2) 0.0 (0.1)
Restructuring and other income (charges), net (13.8) (16.2) (18.5)
Acquisition and other related costs (5.9) (0.6) (1.8)
Litigation verdict charge 0.0 (85.0) 0.0
Net income (loss) 211.6 118.1 181.4
Payments to acquire equity method investments 77.4 35.3 0.0
Ozark Materials      
Segment Reporting Information, Profit (Loss)      
Acquisition and other related costs (5.6)    
Performance Materials      
Segment Reporting Information      
Net sales 548.5 516.8 510.0
Segment Reporting Information, Profit (Loss)      
Segment operating profits 252.2 249.4 249.2
Depreciation and amortization (36.1) (36.8) (31.2)
Restructuring and other income (charges), net (4.8) (6.0) (7.4)
Payments to acquire equity method investments 0.3 0.2  
Performance Chemicals      
Segment Reporting Information      
Net sales 1,119.8 874.7 706.1
Segment Reporting Information, Profit (Loss)      
Segment operating profits 200.4 172.8 148.7
Depreciation and amortization (72.7) (73.1) (69.0)
Restructuring and other income (charges), net $ (9.0) (10.2) (11.1)
Payments to acquire equity method investments   $ 0.4 $ 1.8