EMPLOYEE BENEFIT PLANS - Changes in Benefit Obligations and Plan Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Postretirement Medical Plans
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	$ 1,395	$ 1,465
Service cost with interest to end of year	113	108	$ 79
Interest cost	55	62	26
Participant contributions	20	23
Benefits paid	(32)	(30)
Actuarial gain	(29)	(233)
Benefit obligation at end of year	1,522	1,395	1,465
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	0	0
Employer contributions	12	7
Participant contributions	20	23
Benefits paid	(32)	(30)
Fair value of plan assets at end of year	0	0	0
Pension Plan
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	1,660	1,589
Service cost with interest to end of year	72	65	44
Interest cost	54	65	17
Benefits paid	(42)	(188)
Actuarial gain	488	80
Exchange rate changes	(98)	49
Benefit obligation at end of year	2,134	1,660	1,589
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	1,240	1,196
Actual return on plan assets	216	56
Employer contributions	181	138
Benefits paid	(42)	(188)
Exchange rate changes	(74)	38
Fair value of plan assets at end of year	$ 1,521	$ 1,240	$ 1,196