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Inventories
6 Months Ended
Jun. 30, 2021
Inventory Disclosure [Abstract]  
Inventories INVENTORIES
 June 30, 2021December 31, 2020
Finished products$324.1 $319.3 
Semi-finished products106.2 92.2 
Raw materials161.0 127.2 
Stores and supplies23.2 21.2 
Total$614.5 $559.9 
Inventory reserves were $16.3 million and $17.0 million at June 30, 2021 and December 31, 2020, respectively.