LOAN SERVICING RIGHTS - Schedule of Activity of Servicing Rights Impairment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Servicing Asset at Fair Value, Amount [Roll Forward]
Beginning carrying value, net	$ 150,457
Ending carrying value, net	174,652	$ 150,457
Residential mortgage servicing impairment
Servicing Asset at Fair Value, Amount [Roll Forward]
Beginning carrying value, net	0	25,782	$ 39,407
Additions	0	0	1,398
Recoveries	0	(21,824)	(15,023)
Disposals	0	(3,958)	0
Ending carrying value, net	0	0	25,782
SBA servicing impairment
Servicing Asset at Fair Value, Amount [Roll Forward]
Beginning carrying value, net	0	0	905
Additions	0	0	0
Recoveries	0	0	(905)
Ending carrying value, net	$ 0	$ 0	$ 0