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Inventories
9 Months Ended
Sep. 30, 2023
Inventory Disclosure [Abstract]  
Inventories Inventories
At the end of each period, inventories were comprised of the following:
(in millions)September 30, 2023December 31, 2022
Raw materials$107.2 $79.1 
Work in process56.2 84.2 
Finished goods247.4 183.5 
    Total inventories$410.8 $346.8 
Amounts charged to the consolidated statements of operations for excess and obsolete inventory were $1.5 million and $2.0 million for the three months ended September 30, 2023 and 2022, respectively, and were $1.9 million and $3.5 million for the nine months ended September 30, 2023 and 2022, respectively.