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Revenue from Contracts with Customers (Tables) | 12 Months Ended
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Dec. 31, 2020
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue | The following table provides disaggregated sales and other operating revenue by product or service, excluding intersegment revenues:
|  | Years Ended December 31,
|  | 2020 |  | 2019 |  | 2018
|  | (Dollars in millions)
Sales and other operating revenue: |  |  |  |  |  |
Cokemaking |  | $ | 1,218.9 |  |  | $ | 1,434.9 |  |  | $ | 1,250.5 |
Energy |  | 43.6 |  |  | 51.1 |  |  | 49.7 |
Logistics |  | 35.5 |  |  | 72.1 |  |  | 101.0 |
Operating and licensing fees |  | 31.6 |  |  | 38.4 |  |  | 40.4 |
Other |  | 3.4 |  |  | 3.8 |  |  | 9.3 |
Sales and other operating revenue |  | $ | 1,333.0 |  |  | $ | 1,600.3 |  |  | $ | 1,450.9 |

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