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v3.25.0.1

Unconsolidated Subsidiaries (Condensed Financial Statements) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Statement of Operations |  |
Revenues | $ 237,708 | $ 214,794
Gross profit | 29,756 | 14,591
Income before income taxes | 33,646 | (64,158)
Net income | 33,741 | (39,587)
Balance Sheet |  |
Current assets | 264,738 | 231,998
Current liabilities | 64,888 | 69,986
NACoal | Variable Interest Entity, Not Primary Beneficiary | Unconsolidated Mines |  |
Statement of Operations |  |
Revenues | 542,643 | 610,734
Gross profit | 60,256 | 63,646
Income before income taxes | 56,831 | 49,994
Net income | 49,284 | 43,714
Balance Sheet |  |
Current assets | 145,655 | 124,387
Non-current assets | 816,430 | 814,226
Current liabilities | 158,591 | 161,606
Non-current liabilities | $ 798,043 | $ 772,003

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