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Summary of Significant Accounting Policies, Inventories (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Inventories [Abstract]      
Inventories include finished and in-process products $ 280.2 $ 268.1  
Raw materials and supplies 131.4 113.2  
Non-cash impairment charges $ 0.1 $ 1.8 $ 9.8