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Inventories - Schedule of Inventories (Detail) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Inventory Disclosure [Abstract]    
Finished products $ 56.8 $ 69.4
Work in process 41.8 24.8
Raw materials and supplies 66.2 48.7
Gross inventory 164.8 142.9
Reserve to reduce certain inventories to LIFO basis (4.8) (3.8)
Total inventories $ 160.0 $ 139.1