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SEGMENT INFORMATION - Segment Results (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Reportable segment results |  |  |  |  |
Revenues | $ 613,569 | $ 636,521 | $ 1,858,616 | $ 1,941,279 |
Segment Adjusted EBITDA Expense | 393,717 | 350,406 | 1,115,215 | 1,028,136 |
Segment Adjusted EBITDA | 192,273 | 247,657 | 654,831 | 808,970 |
Total assets | 3,032,173 | 2,814,041 | 3,032,173 | 2,814,041 | $ 2,788,426
Capital expenditures | 110,298 | 110,339 | 335,586 | 295,356 |
Other revenues |  |  |  |  |
Reportable segment results |  |  |  |  |
Revenues | 21,857 | 18,309 | 61,453 | 55,603 |
Coal Royalties |  |  |  |  |
Reportable segment results |  |  |  |  |
Revenues | 16,647 | 16,763 | 51,943 | 48,843 |
Operating segments | Illinois Basin Coal |  |  |  |  |
Reportable segment results |  |  |  |  |
Revenues | 356,911 | 371,633 | 1,109,513 | 1,087,431 |
Segment Adjusted EBITDA Expense | 225,498 | 213,209 | 674,753 | 634,944 |
Segment Adjusted EBITDA | 114,649 | 132,428 | 372,950 | 383,987 |
Total assets | 1,029,389 | 882,943 | 1,029,389 | 882,943 |
Capital expenditures | 68,512 | 59,833 | 230,618 | 179,284 |
Operating segments | Illinois Basin Coal | Other revenues |  |  |  |  |
Reportable segment results |  |  |  |  |
Revenues | 2,331 | 2,897 | 7,284 | 7,466 |
Operating segments | Appalachia Coal |  |  |  |  |
Reportable segment results |  |  |  |  |
Revenues | 203,164 | 215,800 | 589,390 | 705,301 |
Segment Adjusted EBITDA Expense | 157,792 | 131,997 | 412,056 | 377,115 |
Segment Adjusted EBITDA | 37,518 | 74,832 | 157,072 | 300,955 |
Total assets | 534,449 | 459,742 | 534,449 | 459,742 |
Capital expenditures | 32,471 | 30,304 | 91,715 | 94,119 |
Operating segments | Appalachia Coal | Other revenues |  |  |  |  |
Reportable segment results |  |  |  |  |
Revenues | 480 | 449 | 2,363 | 1,299 |
Operating segments | Oil & Gas Royalties |  |  |  |  |
Reportable segment results |  |  |  |  |
Revenues | 34,688 | 36,311 | 108,470 | 105,260 |
Segment Adjusted EBITDA Expense | 5,844 | 3,873 | 15,419 | 11,859 |
Segment Adjusted EBITDA | 28,706 | 31,366 | 91,366 | 90,461 |
Total assets | 806,332 | 767,415 | 806,332 | 767,415 |
Operating segments | Oil & Gas Royalties | Other revenues |  |  |  |  |
Reportable segment results |  |  |  |  |
Revenues | 240 | 2,186 | 563 | 3,551 |
Operating segments | Coal Royalties |  |  |  |  |
Reportable segment results |  |  |  |  |
Revenues |  |  | 10 |  |
Segment Adjusted EBITDA Expense | 5,589 | 6,851 | 18,485 | 17,836 |
Segment Adjusted EBITDA | 11,058 | 9,912 | 33,457 | 31,007 |
Total assets | 313,044 | 319,930 | 313,044 | 319,930 |
Capital expenditures |  |  |  | 400 |
Operating segments | Coal Royalties | Other revenues |  |  |  |  |
Reportable segment results |  |  |  |  |
Revenues |  |  | 10 |  |
Other, Corporate and Elimination |  |  |  |  |
Reportable segment results |  |  |  |  |
Revenues | 2,159 | (3,986) | (700) | (5,556) |
Segment Adjusted EBITDA Expense | (1,006) | (5,524) | (5,498) | (13,618) |
Segment Adjusted EBITDA | 342 | (881) | (14) | 2,560 |
Total assets | 348,959 | 384,011 | 348,959 | 384,011 |
Capital expenditures | 9,315 | 20,202 | 13,253 | 21,553 |
Other, Corporate and Elimination | Other revenues |  |  |  |  |
Reportable segment results |  |  |  |  |
Revenues | 18,806 | 12,777 | 51,233 | 43,287 |
Elimination |  |  |  |  |
Reportable segment results |  |  |  |  |
Revenues | (16,647) | (16,763) | (51,933) | (48,843) |
Elimination | Coal Royalties |  |  |  |  |
Reportable segment results |  |  |  |  |
Revenues | $ 16,647 | $ 16,763 | $ 51,933 | $ 48,843 |

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