OTHER ASSETS - Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Long-term derivative contracts	$ 50,376	$ 55,336
Derivative Asset, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Total	Total
Long-term prepaid and secondary roads	$ 9,974	$ 11,348
Patronage equity	9,340	8,292
Long-term notes receivable (b)	7,400	0
Goodwill	6,970	7,822	$ 7,863
Other Assets, Miscellaneous, Noncurrent	2,761	2,964
Total	102,126	97,555
Carbon Credits
Finite-Lived Intangible Assets [Line Items]
Carbon credits	4,187	419
Software Costs
Finite-Lived Intangible Assets [Line Items]
Capitalized software costs	4,866	5,427
New Zealand
Finite-Lived Intangible Assets [Line Items]
Equity investments	$ 6,252	$ 5,947