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v3.25.2

Accrued Liabilities (Tables) | 6 Months Ended
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Jun. 30, 2025
Payables and Accruals [Abstract] |
Schedule of Accrued Liabilities | Accrued liabilities consisted of the following:
|  | June 30, 2025 |  | December 31, 2024
|  | (Dollars in millions)
Accrued benefits |  | $ | 16.9 |  |  | $ | 28.7 |
Current portion of postretirement benefit obligation |  | 1.0 |  |  | 1.0 |
Other taxes payable |  | 12.8 |  |  | 10.2 |
Current portion of black lung liability |  | 1.1 |  |  | 1.0 |
Lease liabilities |  | 2.7 |  |  | 2.7 |
Other |  | 8.7 |  |  | 9.0 |
Total accrued liabilities |  | $ | 43.2 |  |  | $ | 52.6 |

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- Definition Tabular disclosure of the components of accrued liabilities. + References No definition available. + Details
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