PORTFOLIO LOANS - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net deferred loan origination costs	$ 12,500,000	$ 13,500,000
Net accretable purchase accounting adjustments	(8,800,000)	(4,500,000)
Amount of interest collected and recognized on a cash basis	0	400,000	$ 400,000
Collateral dependent loans secured by real estate or business assets	19,300,000	6,100,000
90+ Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross interest income that would have been recorded if impaired loans had been current	900,000	1,100,000	1,200,000
Commercial loans | Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Limit where loans are processed through an expedited underwriting process	1,000,000
Commercial loans | Watch
Accounts, Notes, Loans and Financing Receivable [Line Items]
Limit above which loans are annually reviewed	1,000,000
Commercial loans | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Limit above which loans are annually reviewed	350,000
Retail loans: | CRE
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans purchased	$ 6,900,000	$ 0	$ 0