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EMPLOYEE BENEFITS - Narrative (Details)
 12 Months Ended
Dec. 31, 2024
USD ($)
executive_officer
retiree
shares
Dec. 31, 2023
USD ($)
retiree
shares
Dec. 31, 2022
USD ($)
retiree
shares
Dec. 31, 2018
executive_officer
Dec. 31, 2013
executive_officer
Health Insurance Coverage [Abstract]          
Cost of health care benefits $ 8,900,000 $ 8,100,000 $ 8,400,000    
Health coverage eligibility for retiring employees, minimum years of service 50 years        
Retirees participating in health insurance | retiree 1 1 1    
Employee Stock Ownership Plan (ESOP) [Abstract]          
Contributions to the employee stock ownership plan (ESOP) $ 1,000,000.0 $ 1,000,000.0 $ 1,000,000.0    
Shares owned by the ESOP (in shares) | shares 352,473 366,791      
Supplemental Unemployment Benefits [Abstract]          
Long-term disability coverage, minimum years of service rendered for officers to automatically qualify 3 years        
Long-term disability coverage, minimum annual salary level for officers to automatically qualify $ 50,000        
Long-term disability coverage, maximum benefit provided, per month $ 15,000        
401(k) [Abstract]          
Requisite service period 30 days        
401(k) Plan expense $ 2,200,000 $ 2,200,000 $ 2,000,000.0    
Defined Benefit Plan [Abstract]          
Noncash Adjustment To Pension Liability $ 299,000 $ (948,000)      
Retirement Plan          
Defined Benefit Plan [Abstract]          
Defined benefit pension plan, minimum eligibility age 65 years        
Early retirement election at reduced benefit levels, minimum eligibility age 55 years        
Discount rate 5.58% 5.13%      
Number of shares of Company stock included in plan assets (in shares) | shares 0 240,666      
Expected long-term rate of return on plan assets 6.13% 6.13% 6.13%    
Funded (under funded) status $ 9,181,000 $ 8,386,000 $ 6,866,000    
Accrued benefit (liability) asset recognized 9,181,000 $ 8,386,000 $ 6,866,000    
Expected future employer contributions, next fiscal year $ 0        
Retirement Plan Acquired          
Defined Benefit Plan [Abstract]          
Discount rate 5.71% 5.13%      
Expected long-term rate of return on plan assets 6.13% 6.13% 6.13%    
Funded (under funded) status $ 1,095,000 $ 839,000 $ 749,000    
Accrued benefit (liability) asset recognized 1,095,000 $ 839,000 749,000    
Expected future employer contributions, next fiscal year $ 0        
Restoration Plan          
Defined Benefit Plan [Abstract]          
Discount rate 5.47% 5.13%      
Funded (under funded) status $ (16,848,000) $ (16,176,000) (15,463,000)    
Accrued benefit (liability) asset recognized (16,848,000) $ (16,176,000) $ (15,463,000)    
Expected future employer contributions, next fiscal year $ 852,000        
Equity securities | Retirement Plan          
Defined Benefit Plan [Abstract]          
Target allocation 8.50%        
Fixed income securities | Retirement Plan          
Defined Benefit Plan [Abstract]          
Target allocation 89.50%        
Cash equivalents | Retirement Plan          
Defined Benefit Plan [Abstract]          
Target allocation 2.00%        
Stock options          
Share-based Payment Arrangement, Noncash Expense [Abstract]          
Granted (shares) | shares 0 0 0    
Restricted Stock Units (RSUs)          
Share-based Payment Arrangement, Noncash Expense [Abstract]          
Nonvested awards outstanding (in shares) | shares 252,028 197,943      
Performance Based Restricted Stock Units          
Share-based Payment Arrangement, Noncash Expense [Abstract]          
Nonvested awards outstanding (in shares) | shares 51,369 28,654      
Incentive Plan 2009          
Share-based Payment Arrangement, Noncash Expense [Abstract]          
Number of additional shares (in shares) | shares 410,000        
Incentive Plan 2017          
Share-based Payment Arrangement, Noncash Expense [Abstract]          
Common stock shares reserved and available for issuance (in shares) | shares 2,460,000        
Shares remaining available for grant for future awards (in shares) | shares 883,849        
Incentive Plan          
Share-based Payment Arrangement, Noncash Expense [Abstract]          
Nonvested awards outstanding (in shares) | shares 267,260 201,315 277,600    
Unrecognized compensation expense $ 6,000,000.0 $ 5,700,000 $ 7,400,000    
Unrecognized compensation, weighted-average period for recognition 2 years 2 months 12 days        
Incentive Plan | Stock options          
Share-based Payment Arrangement, Noncash Expense [Abstract]          
Weighted-average remaining contractual life of options exercisable 3 years 3 months 18 days        
Awards contractual term 10 years        
Total intrinsic value of outstanding stock options $ 147,000        
Total intrinsic value of exercisable stock options $ 147,000        
Incentive Plan | Stock options | Minimum          
Share-based Payment Arrangement, Noncash Expense [Abstract]          
Awards vesting period 3 years        
Incentive Plan | Stock options | Maximum          
Share-based Payment Arrangement, Noncash Expense [Abstract]          
Awards vesting period 4 years        
Incentive Plan | Restricted Stock Units (RSUs) | Minimum          
Share-based Payment Arrangement, Noncash Expense [Abstract]          
Awards vesting period 3 years        
Incentive Plan | Restricted Stock Units (RSUs) | Maximum          
Share-based Payment Arrangement, Noncash Expense [Abstract]          
Awards vesting period 4 years        
Incentive Plan | Performance Based Restricted Stock Units          
Share-based Payment Arrangement, Noncash Expense [Abstract]          
Shares earned, performance period 3 years        
Performance earnings, minimum payout (as a percentage) 50.00%        
Performance earnings, target payout (as a percentage) 100.00%        
Performance earnings, maximum payout (as a percentage) 150.00%        
Executive officers          
Deferred Compensation Arrangements [Abstract]          
Number of employees included in the deferred compensation agreement with the Company | executive_officer 29        
Aggregate payment amount provided in the deferred compensation agreements $ 9,900,000        
Deferred Compensation Arrangement with Individual, Maximum Contractual Term 15 years        
Number of individuals receiving payments | executive_officer 9        
Deferred compensation expense $ 330,000 86,000 310,000    
Total deferred compensation plan liability $ 3,200,000        
Split Dollar Life Insurance Agreements [Abstract]          
Number of employees originally covered by the split dollar agreements | executive_officer 9        
Aggregate death benefit amount provided originally in agreement, before inflation adjustment $ 5,700,000        
Number of employees covered by the split dollar agreements, Actively employed with us | executive_officer 3        
Number of retired covered officers death benefits were paid | executive_officer 1     1  
Number of active covered officers death benefits were paid | executive_officer         1
Number of remaining employees covered by the split dollar agreements | executive_officer 6        
Aggregate death benefits for remaining executives, inflation adjusted $ 6,000,000.0        
Expense (credit to expense) of Split Dollar Retirement Bonus (28,000) (95,000) 27,000    
Total split dollar liability $ 1,600,000        
Executive officers | Minimum          
Split Dollar Life Insurance Agreements [Abstract]          
Inflation adjustment factor applied to benefits, annual 3.00%        
Executive officers | Maximum          
Split Dollar Life Insurance Agreements [Abstract]          
Inflation adjustment factor applied to benefits, annual 5.00%        
Employee | Incentive Plan          
Share-based Payment Arrangement, Noncash Expense [Abstract]          
Share-based compensation expense $ 2,900,000 3,200,000 2,900,000    
Tax benefit from share-based compensation expense 618,000 671,000 605,000    
Director | Incentive Plan          
Share-based Payment Arrangement, Noncash Expense [Abstract]          
Share-based compensation expense 580,000 359,000 342,000    
Tax benefit from share-based compensation expense $ 122,000 $ 75,000 $ 72,000    
Director | Incentive Plan | Restricted Stock Units (RSUs)          
Share-based Payment Arrangement, Noncash Expense [Abstract]          
Awards vesting period 1 year