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Related Party Transactions - Summary of Receivables from and Payables to Affiliates (Detail) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Related Party Transaction [Line Items]
Current receivable from affiliate	$ 2.7	$ 18.4
Current payable to affiliate	22.9	18.2
Noncurrent payable to affiliate	33.5	44.7
Other Affiliates | Other Receivable
Related Party Transaction [Line Items]
Current receivable from affiliate	2.7	2.6
Louisiana Pigment Company, L.P. | Trade Items
Related Party Transaction [Line Items]
Current receivable from affiliate		15.8
Current payable to affiliate	17.1	17.3
Valhi | Income Tax Payable
Related Party Transaction [Line Items]
Current payable to affiliate	5.8	0.9
Noncurrent payable to affiliate	$ 33.5	$ 44.7

X

- Definition

Amount of receivables due from an entity that is affiliated with the reporting entity by means of direct or indirect ownership, due within 1 year (or 1 business cycle).

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