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REVENUE FROM CONTRACTS WITH CUSTOMERS - Disaggregation (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2023 | Mar. 31, 2022
Disaggregation of revenues |  |
Revenues | $ 662,922 | $ 463,422
Coal sales |  |
Disaggregation of revenues |  |
Revenues | 578,784 | 388,360
Oil & gas royalties |  |
Disaggregation of revenues |  |
Revenues | 34,497 | 33,396
Transportation |  |
Disaggregation of revenues |  |
Revenues | 30,238 | 29,372
Other revenues |  |
Disaggregation of revenues |  |
Revenues | 19,403 | 12,294
Operating segments | Illinois Basin Coal |  |
Disaggregation of revenues |  |
Revenues | 360,406 | 274,696
Operating segments | Illinois Basin Coal | Coal sales |  |
Disaggregation of revenues |  |
Revenues | 336,910 | 253,905
Operating segments | Illinois Basin Coal | Transportation |  |
Disaggregation of revenues |  |
Revenues | 21,328 | 18,891
Operating segments | Illinois Basin Coal | Other revenues |  |
Disaggregation of revenues |  |
Revenues | 2,168 | 1,900
Operating segments | Appalachia Coal |  |
Disaggregation of revenues |  |
Revenues | 251,259 | 145,299
Operating segments | Appalachia Coal | Coal sales |  |
Disaggregation of revenues |  |
Revenues | 241,874 | 134,455
Operating segments | Appalachia Coal | Transportation |  |
Disaggregation of revenues |  |
Revenues | 8,910 | 10,481
Operating segments | Appalachia Coal | Other revenues |  |
Disaggregation of revenues |  |
Revenues | 475 | 363
Operating segments | Oil & Gas Royalties |  |
Disaggregation of revenues |  |
Revenues | 35,537 | 33,520
Operating segments | Oil & Gas Royalties | Oil & gas royalties |  |
Disaggregation of revenues |  |
Revenues | 34,497 | 33,396
Operating segments | Oil & Gas Royalties | Other revenues |  |
Disaggregation of revenues |  |
Revenues | 1,040 | 124
Operating segments | Coal Royalties |  |
Disaggregation of revenues |  |
Revenues | 15,513 | 15,167
Operating segments | Coal Royalties | Coal royalties |  |
Disaggregation of revenues |  |
Revenues | 15,513 | 15,167
Other, Corporate and Elimination |  |
Disaggregation of revenues |  |
Revenues | 207 | (5,260)
Other, Corporate and Elimination | Coal royalties |  |
Disaggregation of revenues |  |
Revenues | (15,513) | (15,167)
Other, Corporate and Elimination | Other revenues |  |
Disaggregation of revenues |  |
Revenues | 15,720 | 9,907
Elimination |  |
Disaggregation of revenues |  |
Revenues | (15,513) | (15,167)
Elimination | Coal Royalties |  |
Disaggregation of revenues |  |
Revenues | $ 15,513 | $ 15,167

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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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