EMPLOYEE BENEFIT PLANS - Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Pension Benefits (a)
Defined Benefit Plan Disclosure [Line Items]
Net (losses) gains	$ (1,438)	$ 362	$ 11,262
Amortization of losses	6	738	1,154
Settlement expense	2,036	0	0
Postretirement
Defined Benefit Plan Disclosure [Line Items]
Net (losses) gains	(11)	512	40
Amortization of losses	0	15	20
Settlement expense	$ 0	$ 0	$ 0