LOANS - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable Held-for-sale, Net, Not Part of Disposal Group	$ 1.7	$ 4.2
Loans serviced for others, not reported as assets	518.1	542.8
Escrow deposit	2.7	3.0
Fair value, based on valuations	$ 3.3	$ 2.7
Servicing Liability, Fair Value, Change in Fair Value, Valuation Input, Statement of Income or Comprehensive Income [Extensible Enumeration]	Gain (Loss) on Sale of Mortgage Loans	Gain (Loss) on Sale of Mortgage Loans
Valuation allowance	$ 0.0	$ 0.0
Assumptions used to estimate fair value, discount rate (percent)	12.50%	12.50%
Assumptions used to estimate fair value, weighted average life	8 years
Director and Executive Officer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning Balance	$ 50.9
Advances	46.2
Repayments	45.7
Related party loans	5.3
Ending Balance	$ 46.1	$ 50.9
Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Assumptions used to estimate fair value, prepayment speed (percent)	238.00%	453.00%
Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Assumptions used to estimate fair value, prepayment speed (percent)	113.00%	185.00%

The amount of loans serviced for other, which are not reported as assets,

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- Definition

The amount of valuation allowance on mortgage service rights.

+ References

No definition available.

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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.

+ References

No definition available.

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- Definition

The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.

+ References

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- Definition

For an unclassified balance sheet, reflects the carrying amount of unpaid loan amounts due from related parties at the balance sheet date.

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- Definition

Reflects the amount of new advances made to related parties in the form of loan and lease receivables.

+ References

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Amount of increase (decrease) in loans and leases receivable due from related parties.

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- Definition

Amount of cash inflow from related parties which reduce the amount of loans and leases receivable due from related parties.

+ References

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- Definition

Amount, after valuation allowance, of financing receivable held for sale and not part of disposal group. Excludes loan covered under loss sharing agreement and loan classified as investment in debt security.

+ References

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- Definition

Discount rate used to estimate the fair value of servicing assets and servicing liabilities.

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Estimated rate of prepayments of principal on servicing assets and servicing liabilities.

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- Definition

Weighted average life of financial assets and financial liabilities, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Indicates line item in statement of income or comprehensive income that includes increase (decrease) in fair value from change in input used to calculate fair value of contract to service financial asset under which estimated future revenue from contractually specified servicing fee, late fee, and other ancillary revenues are not expected to adequately compensate servicer.

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Amount of increase (decrease) in fair value from changes in the inputs, assumptions, or model used to calculate the fair value of the contract to service financial assets under which the estimated future revenues from contractually specified servicing fees, late charges, and other ancillary revenues are not expected to adequately compensate the servicer.

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