EMPLOYEE BENEFIT PLANS (Details) $ in Thousands			6 Months Ended
	Jun. 21, 2022 plan	Jan. 01, 2021 plan	Jun. 30, 2022 USD ($) plan	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Number of savings plan | plan		1	2
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Deferred compensation liability			$ 8,252		$ 6,270
Noncurrent deferred compensation liability			8,220		6,251
Current deferred compensation liability			32		19
Related rabbi trust assets			$ 8,255		6,267
Postretirement Medical Plans
Defined Benefit Plan Disclosure [Line Items]
Number of defined benefit plans | plan			2
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost			$ 39	$ 43
Interest cost			13	12
Amortization of prior service cost			4	37
Amortization of gain			0	(12)
Net periodic benefit cost			56	80
Benefit obligation			1,221		1,293
Historical cash payments for retirement medical plan claims per year (less than)			200
Defined Benefit Pension Plans | Chemogas Defined Pension Plan
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost			29	35
Interest cost			12	7
Expected return on plan assets			(25)	(18)
Amortization of gain			0	2
Net periodic benefit cost			16	$ 26
Benefit obligation			$ 641		$ 684
Kappa
Defined Benefit Plan Disclosure [Line Items]
Number of savings plan | plan	1