LOAN SERVICING RIGHTS - Schedule of Activity of Servicing Rights (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Servicing Asset at Fair Value, Amount [Roll Forward]
Beginning balance			$ 212,500
Ending balance	$ 262,066		262,066
Residential mortgage servicing rights
Servicing Asset at Fair Value, Amount [Roll Forward]
Beginning balance	232,236	$ 154,746	206,944	$ 130,630
Additions	21,551	43,377	43,252	65,244
Amortization	(7,514)	(7,197)	(13,576)	(14,681)
Recoveries	10,839	749	20,492	10,482
Ending balance	257,112	191,675	257,112	191,675
Residential mortgage servicing valuation allowance
Servicing Asset at Fair Value, Amount [Roll Forward]
Beginning balance	16,129	29,674	25,782	39,407
Recoveries	(10,839)	(749)	(20,492)	(10,482)
Ending balance	5,290	28,925	5,290	28,925
SBA servicing rights
Servicing Asset at Fair Value, Amount [Roll Forward]
Beginning balance	5,384	6,445	5,556	5,839
Additions	236	241	774	471
Amortization	(666)	(563)	(1,376)	(1,092)
Recoveries	0	0	0	905
Ending balance	4,954	6,123	4,954	6,123
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	29	0	73
Amortization	0	(29)	0	(73)
Ending balance	$ 0	$ 0	$ 0	$ 0