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Accrued Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2016
Accrued Liabilities, Current [Abstract] |
Components of Accrued Liabilities | The components of accrued liabilities were as follows (dollars in millions):
| December 31,
| 2016 |  | 2015
Compensation and benefits | $ | 120.4 |  |  | $ | 106.4 |
Medical insurance and workers’ compensation | 28.8 |  |  | 31.1 |
Customer volume discounts and rebates | 18.9 |  |  | 15.3 |
Franchise, property, sales and use taxes | 16.7 |  |  | 16.0 |
Environmental liabilities and asset retirement obligations | 6.4 |  |  | 7.9 |
Severance, retention, and relocation | 3.0 |  |  | 7.3 |
Other | 7.0 |  |  | 9.5 |
Total | $ | 201.2 |  |  | $ | 193.5 |

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