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Inventories, Net (Tables)
9 Months Ended
Sep. 30, 2023
Inventory Disclosure [Abstract]  
Schedule of Inventories by Major Class
The following table summarizes inventories by major class (in millions):    
September 30,
2023
December 31,
2022
Raw materials$145.9 $162.1 
Work in process57.1 57.9 
Finished goods152.7 180.0 
Supplies and other8.9 14.6 
Total inventories$364.6 $414.6