FAIR VALUE - Summary of assets measured at fair value on recurring basis (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Guarantee asset
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Net income available for common shareholders	Net income available for common shareholders
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring | Loans Held at Fair Value
Guarantee asset
Balance at beginning of period	$ 13,726	$ 23,321
Loans acquired	0	1,162
Gains/(losses) in net income, net	50	(150)
Settlements	(1,502)	(3,134)
Balance at end of period	11,922	20,807
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Net Charge Off	(352)	(392)
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring | Guarantee Asset
Guarantee asset
Balance at beginning of period	189	143
Loans transferred from held for investment	13	5
Gains/(losses) in net income, net	5	92
Settlements	(8)	(5)
Balance at end of period	199	235
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring | IRLC, net
Guarantee asset
Balance at beginning of period	345	229
Loans acquired	813	886
Loans transferred from held for investment	819	1,486
Gains/(losses) in net income, net	474	1,094
Balance at end of period	813	723
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring | Equity Warrants
Guarantee asset
Balance at beginning of period	795	825
Balance at end of period	$ 795	$ 825