SEGMENTS OF BUSINESS - Segment EBITDA (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| SEGMENTS OF BUSINESS | ||||
| Total Segment EBITDA | $ 98 | $ 18,266 | $ 5,290 | $ 50,098 |
| Electric Operations | ||||
| SEGMENTS OF BUSINESS | ||||
| Total Segment EBITDA | (2,076) | 15,617 | 2,174 | 41,760 |
| Coal Operations | ||||
| SEGMENTS OF BUSINESS | ||||
| Total Segment EBITDA | $ 2,174 | $ 2,649 | $ 3,116 | $ 8,338 |