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Business Segment Information (Segment Assets) (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Segment Reporting Information [Line Items] |  |
Total assets | $ 1,654.6 | $ 1,615.4
Corporate and Other |  |
Segment Reporting Information [Line Items] |  |
Total assets | 22.8 | 23.9
Operating Segments | Domestic Coke |  |
Segment Reporting Information [Line Items] |  |
Total assets | 1,422.6 | 1,370.6
Operating Segments | Brazil Coke |  |
Segment Reporting Information [Line Items] |  |
Total assets | 15.7 | 18.0
Operating Segments | Logistics |  |
Segment Reporting Information [Line Items] |  |
Total assets | $ 193.5 | $ 202.9

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- Definition Assets, Excluding Income Tax Receivable + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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- Details
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