PORTFOLIO LOANS - Schedule of Activity on the Allowance for Loan Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Activity in the allowance for loan losses
ACL beginning balance	$ 91,740	$ 91,608	$ 87,887
Day 1 PCD	1,243
Provision for credit losses	8,590	2,399	4,623
Charged-off	(19,566)	(4,418)	(3,179)
Recoveries	1,397	2,151	2,277
ACL ending balance	83,404	91,740	91,608
Commercial loans
Activity in the allowance for loan losses
ACL beginning balance	61,884
ACL ending balance	57,235	61,884
Commercial loans | C&I and other commercial
Activity in the allowance for loan losses
ACL beginning balance	21,256	23,860	23,855
Day 1 PCD	824
Provision for credit losses	14,455	(727)	497
Charged-off	(15,453)	(2,429)	(1,069)
Recoveries	507	552	577
ACL ending balance	21,589	21,256	23,860
Commercial loans | CRE
Activity in the allowance for loan losses
ACL beginning balance	35,465	38,299	38,249
Day 1 PCD	322
Provision for credit losses	(318)	(2,455)	892
Charged-off	(3,314)	(953)	(1,375)
Recoveries	146	574	533
ACL ending balance	32,301	35,465	38,299
Commercial loans | Real estate construction
Activity in the allowance for loan losses
ACL beginning balance	5,163	6,457	5,102
Day 1 PCD	0
Provision for credit losses	(1,885)	(1,465)	1,142
Charged-off	0	0	(23)
Recoveries	67	171	236
ACL ending balance	3,345	5,163	6,457
Retail loans:
Activity in the allowance for loan losses
ACL beginning balance	29,856
ACL ending balance	26,169	29,856
Retail loans: | CRE
Activity in the allowance for loan losses
ACL beginning balance	26,298	18,193	17,589
Day 1 PCD	96
Provision for credit losses	(3,031)	7,922	219
Charged-off	(168)	(407)	(251)
Recoveries	516	590	636
ACL ending balance	23,711	26,298	18,193
Retail loans: | Retail other
Activity in the allowance for loan losses
ACL beginning balance	3,558	4,799	3,092
Day 1 PCD	1
Provision for credit losses	(631)	(876)	1,873
Charged-off	(631)	(629)	(461)
Recoveries	161	264	295
ACL ending balance	$ 2,458	$ 3,558	$ 4,799