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Related Party Transactions - Additional Information (Detail) - USD ($) | 12 Months Ended | 24 Months Ended |
--- | --- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2022 | Dec. 31, 2019
Insurance Premiums |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Expense transaction with affiliate | $ 20,800,000 | $ 23,200,000 | $ 19,100,000 |  |
Contran Corporation [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Expense transaction with affiliate | 300,000 | 300,000 | 300,000 |  |
Sublease rent expense | 500,000 | 400,000 | 400,000 |  |
Contran Corporation [Member] | Intercorporate Services Agreement |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Intercorporate services fees | 24,500,000 | 24,000,000.0 | 23,300,000 |  |
Louisiana Pigment Company, L.P. | Titanium Dioxide Pigments |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Purchase of TiO2 | 225,600,000 | 188,600,000 | 167,800,000 |  |
Louisiana Pigment Company, L.P. | Titanium Dioxide Feedstock |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Sales of feedstock ore to LPC | 106,900,000 | 85,400,000 | $ 84,200,000 |  |
Valhi Inc [Member] | Unsecured Revolving Demand Promissory Note |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Outstanding loans under promissory note | $ 0 | 0 |  | $ 0 |
Maximum lending capacity |  |  |  |  | $ 25,000,000
Percentage of Interest over Prime rate |  |  | 1.00% |  |
Interest payable quarterly for the loan | prime plus 1.00% |  |  |  |
Valhi Inc [Member] | Unsecured Revolving Demand Promissory Note | Interest Income |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Interest income on loan |  |  | $ 300,000 | $ 200,000 |
Tall Pines Insurance Company | Insurance Premiums |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Expense transaction with affiliate | $ 17,300,000 | $ 18,600,000 | $ 14,800,000 |  |

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