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EMPLOYEE BENEFIT PLANS - Assumptions (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Net periodic pension cost      
Transfer into Level 3, Asset $ 0 $ 0  
Transfer out of Level 3, Asset 0 0  
Transfer into level 3, Liability 0 0  
Transfer out of level 3, Liability $ 0 $ 0  
Pension Plans      
Projected benefit obligation      
Discount rate, obligation 5.00% 5.23%  
Net periodic pension cost      
Discount rate, periodic cost 5.23% 2.80%  
Long-term rate of return on plan assets 4.00% 5.00%  
Pension Plans | Common stock      
Net periodic pension cost      
Target asset allocation 20.00%    
Pension Plans | Fixed-income securities      
Net periodic pension cost      
Target asset allocation 80.00%    
Non-qualified Supplemental Executive Retirement Plan      
Projected benefit obligation      
Discount rate, obligation 4.72% 4.92% 2.12%