LOAN SERVICING RIGHTS - Schedule of Activity of Servicing Rights (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Servicing Asset at Fair Value, Amount [Roll Forward]
Beginning carrying value, net	$ 212,500
Amortization	(3,002)
Ending carrying value, net	150,457	$ 212,500
Residential mortgage
Servicing Asset at Fair Value, Amount [Roll Forward]
Beginning carrying value, net	206,944	130,630	$ 94,902
Additions	64,020	93,229	98,182
Amortization	(24,995)	(30,540)	(23,151)
(Impairment)/recoveries	21,824	13,625	(39,303)
Disposals	(120,779)	0	0
Ending carrying value, net	147,014	206,944	130,630
SBA
Servicing Asset at Fair Value, Amount [Roll Forward]
Beginning carrying value, net	5,556	5,839	7,886
Additions	889	954	1,571
Purchase accounting adjustment	0	0	(1,214)
Amortization		(2,142)	(1,640)
(Impairment)/recoveries	0	905	(764)
Ending carrying value, net	3,443	5,556	5,839
Indirect automobile
Servicing Asset at Fair Value, Amount [Roll Forward]
Beginning carrying value, net	0	73	247
Addition due to acquisition	0	0	0
Amortization	0	(73)	(174)
(Impairment)/recoveries	0	0	0
Ending carrying value, net	$ 0	$ 0	$ 73