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v3.23.3

Business Segments (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Segment Reporting Information [Line Items] |  |  |  |
Revenues | $ 46,546 | $ 61,793 | $ 158,037 | $ 178,185
Operating (loss) profit | (6,267) | 9,818 | (2,703) | 54,445
Expenditures for property, plant and equipment and acquisition of mineral interests | 23,759 | 17,086 | 37,894 | 42,004
Depreciation, depletion and amortization | 7,320 | 6,569 | 21,429 | 19,184
Operating segments | Coal Mining |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 18,665 | 22,599 | 65,661 | 70,163
Operating (loss) profit | (4,697) | 6,089 | (9,059) | 34,616
Expenditures for property, plant and equipment and acquisition of mineral interests | 1,469 | 3,141 | 5,187 | 11,141
Depreciation, depletion and amortization | 4,336 | 4,257 | 12,924 | 12,683
Operating segments | NAMining |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 21,722 | 22,962 | 64,071 | 67,180
Operating (loss) profit | 866 | (210) | 3,910 | 2,318
Expenditures for property, plant and equipment and acquisition of mineral interests | 21,450 | 604 | 30,380 | 8,985
Depreciation, depletion and amortization | 2,058 | 1,585 | 5,799 | 4,545
Operating segments | Minerals Management |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 5,747 | 16,172 | 23,203 | 40,888
Operating (loss) profit | 3,610 | 10,616 | 16,943 | 35,317
Expenditures for property, plant and equipment and acquisition of mineral interests | 776 | 11,397 | 1,758 | 12,346
Depreciation, depletion and amortization | 768 | 660 | 2,328 | 1,781
Unallocated Items |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 966 | 1,092 | 6,785 | 1,901
Operating (loss) profit | (6,027) | (6,780) | (14,445) | (18,171)
Expenditures for property, plant and equipment and acquisition of mineral interests | 64 | 1,944 | 569 | 9,532
Depreciation, depletion and amortization | 158 | 67 | 378 | 175
Eliminations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | (554) | (1,032) | (1,683) | (1,947)
Operating (loss) profit | $ (19) | $ 103 | $ (52) | $ 365

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