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RETIREMENT AND POSTRETIREMENT PLANS - Funded status of the Employee Retirement Plan (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Employee Retirement Plan      
Reconciliation of projected benefit obligation:      
Projected benefit obligation at beginning of year $ 18,721 $ 19,021  
Interest cost 847 900 $ 622
Actuarial (gain) loss (1,101) 384  
Benefit payments (1,649) (1,584)  
Projected benefit obligation at end of year 16,818 18,721 19,021
Plan assets at fair value (investments in trust funds managed by trustee)      
Balance at beginning of year 21,303 22,593  
Return on plan assets (448) 294  
Benefit payments (1,649) (1,584)  
Balance at end of year 19,206 21,303 22,593
Funded status at end of year 2,388 2,582  
Pension Plan      
Reconciliation of projected benefit obligation:      
Projected benefit obligation at beginning of year 27,282 27,920  
Service cost   564  
Interest cost 1,265 1,263  
Actuarial (gain) loss (1,575) (883)  
Curtailment   (446)  
Impact of settlement (5,481)    
Benefit payments (1,040) (1,136)  
Projected benefit obligation at end of year 20,451 27,282 27,920
Plan assets at fair value (investments in trust funds managed by trustee)      
Balance at beginning of year 38,170 38,572  
Return on plan assets (1,542) 734  
Benefit payments (1,040) (1,136)  
Impact of settlement (5,481)    
Balance at end of year 30,107 38,170 $ 38,572
Funded status at end of year $ 9,656 $ 10,888