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Inventories - Schedule of Inventories (Detail) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
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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

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