FAIR VALUE - Summary of assets measured at level 3 fair value on recurring basis (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024	Dec. 31, 2023
Fair Value, Nonrecurring
Summary of assets measured on a recurring and nonrecurring basis
Net recorded investment	$ 11,922		$ 11,922
Significant Unobservable Inputs (Level 3) | Fair Value, Nonrecurring
Summary of assets measured on a recurring and nonrecurring basis
Net recorded investment	6,112		6,112
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring | Loans Held at Fair Value
Summary of assets measured on a recurring and nonrecurring basis
Settlements	51	$ 352
Settlements	(1,177)	(1,502)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	6,112	11,922	7,283	$ 13,726
Gains/(losses) in net income, net	57	50
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring | Guarantee Asset
Summary of assets measured on a recurring and nonrecurring basis
Settlements	(21)	(8)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	261	199	235	189
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances	(11)	(13)
Gains/(losses) in net income, net	36	5
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring | IRLC, net
Summary of assets measured on a recurring and nonrecurring basis
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	801	813	358	345
Loans acquired	801	813
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances	(873)	(819)
Gains/(losses) in net income, net	515	474
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring | Equity Warrants
Summary of assets measured on a recurring and nonrecurring basis
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	$ 765	$ 795	$ 765	$ 795