v3.25.4

Segment Information - Schedule of Reconciliations of Segment Information to Consolidated Amounts (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Segment Reporting Information [Line Items] |  |  |  |
Total revenues |  | $ 1,310,043 | $ 1,525,220 | $ 1,676,625
Operating income |  | 45,709 | 254,890 | 541,406
Assets |  | 2,783,799 | 2,591,516 |
Depreciation and depletion |  | 188,565 | 153,982 | 127,356
Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues |  | 1,310,043 | 1,525,220 | 1,676,625
Transportation and royalties |  | 333,042 | 367,059 | 368,212
Assets |  | 2,783,799 | 2,591,516 | 2,357,058
Depreciation and depletion |  | 188,565 | 153,982 | 127,356
Capital expenditures |  | 320,261 | 457,221 | 491,674
Mining |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation and depletion |  | 188,565 | 153,982 | 127,356
Mining | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues |  | 1,277,024 | 1,499,980 | 1,647,992
Cash cost of sales | [1] | 975,384 | 999,188 | 904,319
Other segment items | [2] | 7,017 | 8,109 | 5,950
Operating income |  | 294,623 | 492,683 | 737,723
Transportation and royalties |  | 333,042 | 367,059 | 367,949
Assets |  | 2,632,118 | 2,456,973 | 2,220,771
Depreciation and depletion |  | 180,067 | 145,229 | 120,192
Capital expenditures |  | 315,258 | 450,713 | 484,730
All other | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues |  | 33,019 | 25,240 | 28,633
Transportation and royalties |  |  |  | 263
Assets |  | 151,681 | 134,543 | 136,287
Depreciation and depletion |  | 8,498 | 8,753 | 7,164
Capital expenditures |  | $ 5,003 | $ 6,508 | $ 6,944
[1] | The significant expense category and amounts align with the segment-level information that is regularly reviewed by the CODM. Cash cost of sales includes transportation and royalties and excludes depreciation and depletion as presented above.
[2] | Other segment items include non-cash charges to cost of sales of asset retirement obligation accretion and valuation adjustments and stock compensation expense.

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