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MORTGAGE BANKING ACTIVITIES - OTHER INFORMATION RELATING TO MSRS (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
MORTGAGE BANKING ACTIVITIES
Fair value of mortgage servicing rights portfolio	$ 16,704	$ 16,054
Monthly weighted average prepayment rate of unpaid principal balance (as percent)	124.00%	128.00%
Discount rate (as percent)	10.09%	10.26%
Weighted average foreclosure rate	0.16%	0.16%
Weighted average life in years	7 years 6 months 29 days	7 years 6 months 7 days

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Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.

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

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Percentage of contractually collectible principal associated with a financial asset expected not to be collected due to default by the borrower.

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

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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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