EMPLOYEE BENEFIT PLANS - Components of Net Periodic Benefit Cost (Credit) (Details) - Pension Plans - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Components of Net Periodic Benefit Cost (Credit):
Service cost	$ 245	$ 84	$ 328	$ 182
Interest cost	5,237	5,272	10,429	10,424
Expected return on plan assets	(6,565)	(6,032)	(13,076)	(11,848)
Amortization of:
Prior service cost	131	27	264	53
Net actuarial loss (gain)	1,809	1,534	3,533	3,044
Settlement loss	0	783	0	1,542
Net periodic benefit cost (credit)	$ 857	$ 1,668	$ 1,478	$ 3,397