LOAN SERVICING RIGHTS - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Residential mortgage
Contractually Specified Servicing Fees, Late Fees, and Ancillary Fees Earned in Exchange for Servicing Financial Assets [Line Items]
Servicing fee income	$ 15,800	$ 18,400	$ 45,000	$ 54,600
SBA servicing rights
Contractually Specified Servicing Fees, Late Fees, and Ancillary Fees Earned in Exchange for Servicing Financial Assets [Line Items]
Servicing fee income	$ 734	$ 907	$ 2,200	$ 2,800