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REVENUE FROM CONTRACTS WITH CUSTOMERS - Disaggregation (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Disaggregation of revenues |  |  |  |
Revenues | $ 616,501 | $ 362,443 | $ 1,077,364 | $ 681,065
Illinois Basin |  |  |  |
Disaggregation of revenues |  |  |  |
Revenues | 313,497 | 218,233 | 588,193 | 409,167
Appalachia |  |  |  |
Disaggregation of revenues |  |  |  |
Revenues | 255,682 | 120,723 | 400,981 | 229,342
Oil & Gas Royalties |  |  |  |
Disaggregation of revenues |  |  |  |
Revenues | 36,579 | 17,587 | 67,540 | 31,607
Coal Royalties |  |  |  |
Disaggregation of revenues |  |  |  |
Revenues | 14,525 | 11,653 | 29,692 | 22,954
Other, Corporate and Elimination |  |  |  |
Disaggregation of revenues |  |  |  |
Revenues | (3,782) | (5,753) | (9,042) | (12,005)
Coal sales |  |  |  |
Disaggregation of revenues |  |  |  |
Revenues | 531,807 | 325,974 | 920,167 | 613,461
Coal sales | Illinois Basin |  |  |  |
Disaggregation of revenues |  |  |  |
Revenues | 290,389 | 210,157 | 544,294 | 392,798
Coal sales | Appalachia |  |  |  |
Disaggregation of revenues |  |  |  |
Revenues | 241,418 | 115,817 | 375,873 | 220,663
Oil & gas royalties |  |  |  |
Disaggregation of revenues |  |  |  |
Revenues | 35,927 | 17,114 | 66,854 | 31,113
Oil & gas royalties | Oil & Gas Royalties |  |  |  |
Disaggregation of revenues |  |  |  |
Revenues | 35,927 | 17,114 | 66,854 | 31,113
Coal royalties | Coal Royalties |  |  |  |
Disaggregation of revenues |  |  |  |
Revenues | 14,525 | 11,653 | 29,692 | 22,954
Coal royalties | Other, Corporate and Elimination |  |  |  |
Disaggregation of revenues |  |  |  |
Revenues | (14,525) | (11,653) | (29,692) | (22,954)
Transportation |  |  |  |
Disaggregation of revenues |  |  |  |
Revenues | 35,385 | 12,058 | 64,757 | 23,126
Transportation | Illinois Basin |  |  |  |
Disaggregation of revenues |  |  |  |
Revenues | 21,449 | 7,434 | 40,340 | 15,114
Transportation | Appalachia |  |  |  |
Disaggregation of revenues |  |  |  |
Revenues | 13,936 | 4,624 | 24,417 | 8,012
Other revenues |  |  |  |
Disaggregation of revenues |  |  |  |
Revenues | 13,382 | 7,297 | 25,586 | 13,365
Other revenues | Illinois Basin |  |  |  |
Disaggregation of revenues |  |  |  |
Revenues | 1,659 | 642 | 3,559 | 1,255
Other revenues | Appalachia |  |  |  |
Disaggregation of revenues |  |  |  |
Revenues | 328 | 282 | 691 | 667
Other revenues | Oil & Gas Royalties |  |  |  |
Disaggregation of revenues |  |  |  |
Revenues | 652 | 473 | 686 | 494
Other revenues | Other, Corporate and Elimination |  |  |  |
Disaggregation of revenues |  |  |  |
Revenues | $ 10,743 | $ 5,900 | $ 20,650 | $ 10,949

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8906-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9031-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9038-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130543-203045 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9054-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130545-203045 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI https://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 + Details
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