TiO2 segment information - Additional Information (Detail) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
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| Geographic Information [Line Items] | ||||
| Depreciation and amortization | $ 15.1 | $ 18.4 | $ 29.0 | $ 29.3 |
| Sulfate Process Line at Plant in Varennes, Canada | ||||
| Geographic Information [Line Items] | ||||
| Workforce reductions | 2.0 | 2.0 | ||
| Accelerated depreciation | $ 10.0 | $ 10.0 | ||
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- Definition Geographic information. No definition available.
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| X | ||||||||||
- Definition The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of accelerated depreciation charged against earnings associated with exit from or disposal of business activities or restructuring plan. No definition available.
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| X | ||||||||||
- Details
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