EMPLOYEE BENEFIT PLANS - Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Pension Benefits
Employee benefit plans
Service cost	$ 23,421	$ 22,159	$ 34,847
Interest cost	36,244	34,190	25,596
Expected return on plan assets	(52,941)	(53,684)	(45,228)
Net amortization and deferral	2,394	(3,043)	5,781
Net periodic (income) cost	9,118	(378)	20,996
Other Benefits
Employee benefit plans
Service cost	6,048	4,489	6,830
Interest cost	6,900	5,219	4,009
Expected return on plan assets	(11,949)	(10,543)	(9,927)
Net amortization and deferral	(375)	(2,019)	(824)
Net periodic (income) cost	$ 624	$ (2,854)	$ 88