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RETIREMENT PLANS - Additional Information (Details)
 12 Months Ended
Dec. 31, 2025
USD ($)
retirementPlan
shares
Dec. 31, 2024
USD ($)
shares
Dec. 31, 2023
USD ($)
Dec. 31, 2009
Retirement Plans [Line Items]        
Number of supplemental non-qualified retirement plans sponsored by the corporation | retirementPlan 2      
Consecutive calendar years used to calculate BRP benefits       5 years
Term of employment for consideration of BRP       10 years
Percentage of non callable corporate bonds 10.00% 10.00%    
Benefits paid $ 12,000,000 $ 11,000,000    
Corporation contribution $ 3,000,000 2,000,000    
Percent of employer match 100.00%      
Employee contribution percentage 6.00%      
Additional discretionary contribution, annual financial goals, percentage 3.00%      
Dividends received on common stock $ 100,000 $ 100,000    
Common Stock        
Retirement Plans [Line Items]        
Common stock, shares (in shares) | shares 155,000 235,000    
Percentage of common stock on total plan assets 1.40% 1.90%    
Retirement Income Plan (RIP)        
Retirement Plans [Line Items]        
Corporation contribution $ 0 $ 0 $ 0  
Qualified Pension Plans        
Retirement Plans [Line Items]        
Benefits paid 9,300,000 9,500,000    
Non Qualified Pension Plans        
Retirement Plans [Line Items]        
Benefits paid $ 2,900,000 $ 1,600,000