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Inventories (Details) - USD ($)
$ in Millions
Jun. 30, 2021
Dec. 31, 2020
Inventory, Net [Abstract]    
Raw materials $ 89.1 $ 89.7
Work in progress 35.8 31.0
Finished goods 74.6 48.4
Subtotal 199.5 169.1
Less reserves (37.1) (39.0)
Total $ 162.4 $ 130.1