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RELATED-PARTY TRANSACTIONS (Tables) | 12 Months Ended
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Dec. 31, 2024
RELATED-PARTY TRANSACTIONS |
Summary of advanced royalties outstanding | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | WKY CoalPlay | ​ | ​ | ​
​ | ​ | ​ | ​ | Towhead | ​ | Henderson | ​ | WKY | ​ | ​ | ​
​ | ​ | Craft Foundations | ​ | Coal | ​ | Coal | ​ | CoalPlay | ​ | ​ | ​
​ | ​ | ​ | ​ | Henderson | ​ | ​ | ​ | Henderson | ​ | ​ | ​ | ​
​ | ​ | Tunnel | ​ | & Union | ​ | Henderson | ​ | & Union | ​ | ​ | ​ | ​
​ | ​ | Ridge | ​ | Counties, KY | ​ | County, KY | ​ | Counties, KY | ​ | Total | ​
​ | ​ | Acquired | ​ | Acquired | ​ | Acquired | ​ | Acquired | ​ | ​ | ​ | ​
​ | ​ | 2005 | ​ | 2014 | ​ | 2014 | ​ | 2015 | ​ | ​ | ​ | ​
​ | (in thousands) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
As of January 1, 2022 | ​ | $ | 1,500 | ​ | $ | 21,750 | ​ | $ | 17,650 | ​ | $ | 14,713 | ​ | $ | 55,613 | ​
Payments | ​ | ​ | 3,000 | ​ | ​ | 3,597 | ​ | ​ | 2,522 | ​ | ​ | 2,131 | ​ | ​ | 11,250 | ​
Recoupment | ​ | ​ | (3,000) | ​ | ​ | (3,255) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (6,255) | ​
Unrecoupable | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​
As of December 31, 2022 | ​ | ​ | 1,500 | ​ | ​ | 22,092 | ​ | ​ | 20,172 | ​ | ​ | 16,844 | ​ | ​ | 60,608 | ​
Payments | ​ | ​ | 3,000 | ​ | ​ | 3,597 | ​ | ​ | 2,521 | ​ | ​ | 2,131 | ​ | ​ | 11,249 | ​
Recoupment | ​ | ​ | (3,000) | ​ | ​ | (4,258) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (7,258) | ​
Unrecoupable | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​
As of December 31, 2023 | ​ | ​ | 1,500 | ​ | ​ | 21,431 | ​ | ​ | 22,693 | ​ | ​ | 18,975 | ​ | ​ | 64,599 | ​
Payments | ​ | ​ | 3,000 | ​ | ​ | 3,597 | ​ | ​ | 2,521 | ​ | ​ | 2,131 | ​ | ​ | 11,249 | ​
Recoupment | ​ | ​ | (3,000) | ​ | ​ | (5,380) | ​ | ​ | (258) | ​ | ​ | (21) | ​ | ​ | (8,659) | ​
Unrecoupable | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​
As of December 31, 2024 | ​ | $ | 1,500 | ​ | $ | 19,648 | ​ | $ | 24,956 | ​ | $ | 21,085 | ​ | $ | 67,189 | ​

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- Definition Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates. + References No definition available. + Details
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