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Inventories
9 Months Ended
Sep. 30, 2021
Inventory Disclosure [Abstract]  
Inventories INVENTORIES
 September 30, 2021December 31, 2020
Finished products$364.0 $319.3 
Semi-finished products112.5 92.2 
Raw materials178.4 127.2 
Stores and supplies23.0 21.2 
Total$677.9 $559.9 
Inventory reserves were $16.6 million and $17.0 million at September 30, 2021 and December 31, 2020, respectively.