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Noncontrolling interest in subsidiaries (Tables) | 9 Months Ended
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Sep. 30, 2024
Noncontrolling interest in subsidiaries |
Noncontrolling Interest in Net Assets of Subsidiaries | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, | ​ | September 30,
​ |  | 2023 |  | 2024
​ |  | (In millions)
Noncontrolling interest in net assets: |  | ​ |  |  | ​ |
Kronos Worldwide | ​ | $ | 209.0 | ​ | $ | 216.2
NL Industries | ​ |  | 76.9 | ​ |  | 79.7
CompX International | ​ |  | 22.0 | ​ |  | 18.9
BMI | ​ |  | 11.0 | ​ |  | 16.7
LandWell | ​ |  | 6.8 | ​ |  | 12.6
Total | ​ | $ | 325.7 | ​ | $ | 344.1
Schedule of Noncontrolling interest in net income (loss) of subsidiaries | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Nine months ended September 30,
​ |  | 2023 |  | 2024
​ | ​ | (In millions)
Noncontrolling interest in net income (loss) of subsidiaries: |  | ​ |  |  | ​ |
Kronos Worldwide | ​ | $ | (8.5) | ​ | $ | 18.7
NL Industries | ​ |  | (1.7) | ​ |  | 8.6
CompX International | ​ |  | 2.0 | ​ |  | 1.4
BMI | ​ |  | 6.3 | ​ |  | 5.8
LandWell | ​ |  | 10.1 | ​ |  | 9.2
Total | ​ | $ | 8.2 | ​ | $ | 43.7
​

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