INCOME TAXES - Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Income Taxes
Income tax (expense) benefit	$ 0	$ (10)	$ (291)	$ 981
Pension
Income Taxes
Income tax benefit				$ 1,200	$ (1,200)