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EMPLOYEE BENEFIT PLANS - Narrative (Details)
$ in Thousands
9 Months Ended
Sep. 30, 2025
USD ($)
plan
Dec. 31, 2024
USD ($)
Defined Benefit Plan Disclosure [Line Items]    
Number of savings plans | plan 1  
Number of defined benefit plans | plan 2  
Deferred compensation liability $ 12,574 $ 11,470
Noncurrent deferred compensation liability 12,551 11,449
Current deferred compensation liability 23 21
Irrevocable trust funds 12,566  
Rabbi trust funds - non-current 12,543 11,465
Rabbi trust funds - current 23  
Postretirement Medical Plans    
Defined Benefit Plan Disclosure [Line Items]    
Benefit obligation 1,531 1,522
Historical cash payments for retirement medical plan claims per year (less than) 200  
Defined Benefit Pension Plans | Chemogas Defined Pension Plan    
Defined Benefit Plan Disclosure [Line Items]    
Benefit obligation $ 800 $ 613