| EMPLOYEE BENEFIT PLANS (Tables) | 3 Months Ended | 
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| Mar. 31, 2024 | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Schedule of Components of Net Periodic Benefit Cost | Three Months Ended March 31,  (Dollars in Thousands)  2024  2023  Service Cost  $  929 $  872 Interest Cost  1,524 1,458 Expected Return on Plan Assets  (2,029) (1,701) Prior Service Cost Amortization  - 1 Net Loss Amortization  41 234 Net Periodic Benefit Cost  $  465 $  864 Discount Rate Used for Benefit Cost  5.29% 5.63% Long-term Rate of Return on Assets  6.75% 6.75% | 
| Supplemental Executive Retirement Plan [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Schedule of Components of Net Periodic Benefit Cost | The components of the net periodic benefit cost for the Company's SERP plans were as follows:  Three Months Ended March 31,  (Dollars in Thousands)  2024  2023  Service Cost  $  9 $  4 Interest Cost  114 130 Prior Service Cost Amortization  - 38 Net Loss Amortization  (70) (155) Net Periodic Benefit Cost  $  53 $  17 Discount Rate Used for Benefit Cost  5.11% 5.45% | 
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available. 
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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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