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Noncontrolling interest in subsidiaries (Tables) | 6 Months Ended
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Jun. 30, 2024
Noncontrolling interest in subsidiaries |
Noncontrolling Interest in Net Assets of Subsidiaries | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, | ​ | June 30,
​ |  | 2023 |  | 2024
​ |  | (In millions)
Noncontrolling interest in net assets: |  | ​ |  |  | ​ |
Kronos Worldwide | ​ | $ | 209.0 | ​ | $ | 202.4
NL Industries | ​ |  | 76.9 | ​ |  | 77.5
CompX International | ​ |  | 22.0 | ​ |  | 22.1
BMI | ​ |  | 11.0 | ​ |  | 13.7
LandWell | ​ |  | 6.8 | ​ |  | 8.7
Total | ​ | $ | 325.7 | ​ | $ | 324.4
Schedule of Noncontrolling interest in net income (loss) of subsidiaries | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Six months ended June 30,
​ |  | 2023 |  | 2024
​ | ​ | (In millions)
Noncontrolling interest in net income (loss) of subsidiaries: |  | ​ |  |  | ​ |
Kronos Worldwide | ​ | $ | (4.5) | ​ | $ | 5.1
NL Industries | ​ |  | (1.7) | ​ |  | 2.5
CompX International | ​ |  | 1.3 | ​ |  | 1.1
BMI | ​ |  | 3.5 | ​ |  | 2.7
LandWell | ​ |  | 5.5 | ​ |  | 4.2
Total | ​ | $ | 4.1 | ​ | $ | 15.6
​

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