Inventories (Schedule of Inventories) (Details) - USD ($) $ in Thousands |
Jun. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Inventories [Abstract] | ||
| Raw coal | $ 57,270 | $ 60,874 |
| Saleable coal | 44,020 | 32,633 |
| Total coal inventories | 101,290 | 93,507 |
| Supplies and other inventory | 77,412 | 62,236 |
| Total inventories | 178,702 | 155,743 |
| Net realizable value of inventory | $ 39,000 | $ 26,000 |
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- Definition Raw coal. No definition available.
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- Definition Saleable coal. 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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- Definition Fair value portion of inventory expected to be realized or consumed after one year or normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount before valuation and LIFO reserves of other supplies used within the manufacturing or production process expected to be consumed within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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