EMPLOYEE BENEFIT PLANS - Schedule of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Postretirement Medical Plans
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost	$ 84	$ 81
Interest cost	41	46
Amortization of (gain) loss	(7)	6
Net periodic benefit cost	118	133
Defined Benefit Pension Plans | Chemogas Defined Pension Plan
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost	58	46
Interest cost	43	47
Expected return on plan assets	(32)	(30)
Net periodic benefit cost	$ 69	$ 63