EMPLOYEE BENEFIT PLANS - Changes in Benefit Obligations and Plan Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Employer contributions	$ 814	$ 555	$ 600
Postretirement Medical Plans
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	1,522	1,395
Service cost with interest to end of year	115	113	108
Interest cost	71	55	62
Participant contributions	19	20
Benefits paid	(67)	(32)
Actuarial gain (loss)	(539)	(29)
Benefit obligation at end of year	1,122	1,522	1,395
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	48	12
Participant contributions	19	20
Benefits paid	(67)	(32)
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	2,134	1,660
Service cost with interest to end of year	215	72	65
Interest cost	81	54	65
Benefits paid	(206)	(42)
Actuarial gain (loss)	389	488
Expenses paid	(10)	0
Exchange rate changes	278	(98)
Benefit obligation at end of year	2,881	2,134	1,660
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	1,521	1,240
Actual return on plan assets	299	216
Employer contributions	209	181
Benefits paid	(206)	(42)
Expenses paid	(10)	0
Exchange rate changes	199	(74)
Fair value of plan assets at end of year	$ 2,012	$ 1,521	$ 1,240