BENEFIT PLANS - Schedule of plan assumptions (Details)	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022
SERP and DRP
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.60%	4.81%
Discount rate	4.74%	2.31%
Post Retirement
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.71%	4.91%
Discount rate	4.86%	2.59%

Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (k)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

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- Definition

Weighted average rate for present value of future retirement benefits cash flows, used to determine net periodic benefit cost of defined benefit plan.

+ References

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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.

+ References

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