LOAN SERVICING RIGHTS - Schedule of Activity of Servicing Rights (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Servicing Asset at Fair Value, Amount [Roll Forward]
Beginning balance			$ 212,500
Ending balance	$ 149,082		149,082
Residential mortgage servicing rights
Servicing Asset at Fair Value, Amount [Roll Forward]
Beginning balance	257,112	$ 191,675	206,944	$ 130,630
Additions	14,893	6,195	58,145	71,439
Amortization	(6,939)	(7,967)	(20,515)	(22,648)
Recoveries	1,332	(1,397)	21,824	9,085
Disposals	(121,634)	0	(121,634)	0
Ending balance	144,764	188,506	144,764	188,506
Residential mortgage servicing valuation allowance
Servicing Asset at Fair Value, Amount [Roll Forward]
Beginning balance	5,290	28,925	25,782	39,407
Additions	0	1,397	0	1,397
Recoveries	(1,332)	0	(21,824)	(10,482)
Disposals	(3,958)	0	(3,958)	0
Ending balance	0	30,322	0	30,322
SBA servicing rights
Servicing Asset at Fair Value, Amount [Roll Forward]
Beginning balance	4,954	6,123	5,556	5,839
Additions	99	265	873	736
Amortization	(735)	(555)	(2,111)	(1,647)
Recoveries	0	0	0	905
Ending balance	4,318	5,833	4,318	5,833
SBA servicing valuation allowance
Servicing Asset at Fair Value, Amount [Roll Forward]
Beginning balance	0	0	0	905
Recoveries	0	0	0	(905)
Ending balance	0	0	0	0
Indirect automobile
Servicing Asset at Fair Value, Amount [Roll Forward]
Beginning balance	0	0	0	73
Amortization	0	0	0	(73)
Ending balance	$ 0	$ 0	$ 0	$ 0