STOCK-BASED COMPENSATION PLANS - Stock Units Activity (Details) - $ / shares	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022
Performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance period (in years)	3 years
Units vested and exercised	28,831	29,200
Number of Units Outstanding
Beginning balance (in shares)	78,435	70,465
Awarded (in shares)	28,831	29,200
Vested (in shares)	(15,601)
Forfeited (in shares)	(6,750)	(21,230)
Ending balance (in shares)	84,915	78,435
Weighted Average Grant Date Fair Value
Beginning balance (usd per share)	$ 25.70	$ 23.88
Granted (usd per share)	30.64	28.49
Vested (usd per share)	25.29
Forfeited (usd per share)	25.30	23.35
Ending balance (usd per share)	$ 27.53	$ 25.70
Performance stock units \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for grant under this plan	0	0
Performance stock units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for grant under this plan	43,247	43,800
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Units vested and exercised	36,354	36,468
Number of Units Outstanding
Beginning balance (in shares)	115,816	133,617
Awarded (in shares)	36,354	36,468
Vested (in shares)	(43,341)	(43,059)
Forfeited (in shares)	(6,134)	(11,210)
Ending balance (in shares)	102,695	115,816
Weighted Average Grant Date Fair Value
Beginning balance (usd per share)	$ 25.25	$ 23.48
Granted (usd per share)	26.12	28.51
Vested (usd per share)	21.77	22.88
Forfeited (usd per share)	25.84	23.46
Ending balance (usd per share)	$ 27.07	25.25
Restricted stock units \| Executive officers
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Weighted Average Grant Date Fair Value
Granted (usd per share)	$ 29.36	28.49
Restricted stock units \| Senior vice presidents
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Weighted Average Grant Date Fair Value
Granted (usd per share)	$ 29.36	$ 29.34
Cash based restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units vested and exercised	29,043	24,232
Number of Units Outstanding
Awarded (in shares)	29,043	24,232

Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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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.

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