DERIVATIVE FINANCIAL INSTRUMENTS - Schedule of Derivative Liabilities at Fair Value (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Derivative [Line Items] | ||||
| Net realized losses settled in other comprehensive loss | $ (42,757) | $ (17,468) | $ (38,903) | $ (41,899) |
| Unrealized losses recognized in other comprehensive loss | (4,731) | 1,344 | (20,691) | 1,725 |
| Gains (losses) recognized in earnings related to: | 348 | (535) | (501) | (827) |
| Electricity Swaps | ||||
| Derivative [Line Items] | ||||
| Net realized losses settled in other comprehensive loss | (42,757) | (17,468) | (38,903) | (41,899) |
| Unrealized losses recognized in other comprehensive loss | (4,731) | 1,344 | (20,691) | 1,725 |
| Natural Gas Forward | ||||
| Derivative [Line Items] | ||||
| Gains (losses) recognized in earnings related to: | (6) | 0 | (1,222) | 0 |
| Interest Rate Swaps | ||||
| Derivative [Line Items] | ||||
| Gains (losses) recognized in earnings related to: | $ 354 | $ (535) | $ 721 | $ (827) |