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v3.26.1

Segment Information - Segment Results (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2026 | Mar. 31, 2026 | Jun. 30, 2025 | Mar. 31, 2025 | Jun. 30, 2026 | Jun. 30, 2025
Segment Reporting [Line Items] |  |  |  |  |  |
Coal revenues | $ 491,505 |  | $ 548,675 |  | $ 1,015,038 | $ 1,078,342
Other revenues | 1,351 |  | 1,599 |  | 2,805 | 3,889
Total revenues | 492,856 |  | 550,274 |  | 1,017,843 | 1,082,231
Cost of coal sales (exclusive of items shown separately below) | 443,663 |  | 479,953 |  | 918,052 | 984,537
Depreciation, depletion and amortization | 36,044 |  | 44,822 |  | 75,970 | 88,732
Accretion on asset retirement obligations | 5,214 |  | 5,508 |  | 10,429 | 11,122
Amortization of acquired intangibles | 876 |  | 1,357 |  | 1,752 | 2,714
Selling, general and administrative expenses | 17,257 |  | 15,216 |  | 33,855 | 30,640
Interest expense | 962 |  | 761 |  | 1,803 | 1,524
Interest income | (2,919) |  | (4,199) |  | (7,125) | (8,245)
Equity loss in affiliates | 6,717 |  | 8,736 |  | 12,450 | 13,696
Income tax benefit | (6,595) |  | (1,248) |  | (11,921) | (12,685)
Net loss | (12,252) | $ (11,032) | (4,954) | $ (33,947) | (23,284) | (38,901)
Met |  |  |  |  |  |
Segment Reporting [Line Items] |  |  |  |  |  |
Coal revenues | 491,505 |  | 548,675 |  | 1,015,038 | 1,078,342
Other revenues | 1,351 |  | 1,599 |  | 2,805 | 3,889
Total revenues | 492,856 |  | 550,274 |  | 1,017,843 | 1,082,231
Non-GAAP cost of coal sales | 365,789 |  | 388,844 |  | 754,092 | 803,513
Freight and handling costs | 70,220 |  | 84,589 |  | 146,434 | 168,513
Idled and closed mine costs | 7,654 |  | 6,520 |  | 17,526 | 12,511
Cost of coal sales (exclusive of items shown separately below) | 443,663 |  | 479,953 |  | 918,052 | 984,537
Depreciation, depletion and amortization | 36,044 |  | 44,822 |  | 75,970 | 88,732
Accretion on asset retirement obligations | 5,214 |  | 5,508 |  | 10,429 | 11,122
Amortization of acquired intangibles | 876 |  | 1,357 |  | 1,752 | 2,714
Selling, general and administrative expenses | 17,257 |  | 15,216 |  | 33,855 | 30,640
Interest expense | 962 |  | 761 |  | 1,803 | 1,524
Interest income | (2,919) |  | (4,199) |  | (7,125) | (8,245)
Equity loss in affiliates | 6,717 |  | 8,736 |  | 12,450 | 13,696
Other segment items | 3,889 |  | 4,322 |  | 5,862 | 9,097
Income tax benefit | (6,595) |  | (1,248) |  | (11,921) | (12,685)
Total other expenses | 61,445 |  | 75,275 |  | 123,075 | 136,595
Net loss | $ (12,252) |  | $ (4,954) |  | $ (23,284) | $ (38,901)

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