Inventories (Details) - USD ($) $ in Millions |
Jun. 30, 2025 |
Dec. 31, 2024 |
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| Inventory Disclosure [Abstract] | ||
| Coal | $ 141.2 | $ 109.3 |
| Coke | 17.3 | 13.9 |
| Materials, supplies and other | 56.8 | 57.6 |
| Total inventories | $ 215.3 | $ 180.8 |
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- Definition Coke. No definition available.
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- Definition Materials, supplies and other. No definition available.
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- Definition Carrying amount as of the balance sheet date of coal, which is a combustible rock or minerals which are extracted from the ground and used as fuel. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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- Definition Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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