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Segment Information - Narrative (Details)	12 Months Ended
	Dec. 31, 2025 customer segment	Dec. 31, 2024 customer	Dec. 31, 2023 customer
Segment Information [Abstract]
Number of operating segments	1
Number of reportable segments	1
Sales Revenue, Net | Customer Concentration Risk | 10 Largest Third-party TiO2 Customers
Segment Information [Abstract]
Number of largest customers representing specified percentage of net sales | customer	10	10	10
Concentration (in percent)	36.00%	37.00%	39.00%

X

- Definition

Refers to the number of largest customers representing a specified percentage of net sales of an entity.

+ References

No definition available.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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- Definition

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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