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Inventories
9 Months Ended
Sep. 30, 2021
Inventory Disclosure [Abstract]  
Inventories Inventories
Inventories consisted of the following:
(in millions)September 30,
2021
December 31,
2020
Raw materials$13.0 $16.6 
Work in process1.3 2.4 
Finished goods11.2 9.0 
Total inventories$25.5 $28.0