Inventories, net (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Inventory [Line Items]
Raw materials	$ 194.0	$ 151.5
Work in process	49.9	52.0
Finished products	256.3	355.8
Supplies (chemicals)	95.9	81.5
Total	596.1	640.8
Chemicals
Inventory [Line Items]
Raw materials	188.3	145.3
Work in process	30.8	32.0
Finished products	250.4	350.7
Component products
Inventory [Line Items]
Raw materials	5.7	6.2
Work in process	19.1	20.0
Finished products	$ 5.9	$ 5.1

Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of products used directly or indirectly in the manufacturing or production process, which may or may not become part of the final product. May also include items used in the storage, presentation or transportation of physical goods.

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