PORTFOLIO LOANS -Schedule of Portfolio Loans that are Past Due and Still Accruing or on a Non-accrual Status (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Past Due [Line Items]
Commercial loans	$ 7,651,034	$ 7,725,702
90 days past due and still accruing	375	673
Non-accrual Loans	7,441	15,067
30 to 59 days past due and still accruing
Financing Receivable, Past Due [Line Items]
Commercial loans	4,443	5,249
60 to 89 days past due and still accruing
Financing Receivable, Past Due [Line Items]
Commercial loans	1,336	1,299
Commercial
Financing Receivable, Past Due [Line Items]
Commercial loans	1,835,994	1,974,154
90 days past due and still accruing	0	0
Non-accrual Loans	2,602	6,174
Commercial | 30 to 59 days past due and still accruing
Financing Receivable, Past Due [Line Items]
Commercial loans	0	2
Commercial | 60 to 89 days past due and still accruing
Financing Receivable, Past Due [Line Items]
Commercial loans	214	0
Commercial real estate
Financing Receivable, Past Due [Line Items]
Commercial loans	3,337,337	3,261,873
90 days past due and still accruing	0	0
Non-accrual Loans	843	5,644
Commercial real estate | 30 to 59 days past due and still accruing
Financing Receivable, Past Due [Line Items]
Commercial loans	752	124
Commercial real estate | 60 to 89 days past due and still accruing
Financing Receivable, Past Due [Line Items]
Commercial loans	0	0
Real estate construction
Financing Receivable, Past Due [Line Items]
Commercial loans	461,717	530,469
90 days past due and still accruing	0
Non-accrual Loans	244
Real estate construction | 30 to 59 days past due and still accruing
Financing Receivable, Past Due [Line Items]
Commercial loans	24
Real estate construction | 60 to 89 days past due and still accruing
Financing Receivable, Past Due [Line Items]
Commercial loans	0
Total commercial loans
Financing Receivable, Past Due [Line Items]
Commercial loans	5,635,048	5,766,496
90 days past due and still accruing	0	0
Non-accrual Loans	3,689	11,818
Total commercial loans | 30 to 59 days past due and still accruing
Financing Receivable, Past Due [Line Items]
Commercial loans	776	126
Total commercial loans | 60 to 89 days past due and still accruing
Financing Receivable, Past Due [Line Items]
Commercial loans	214	0
Retail real estate
Financing Receivable, Past Due [Line Items]
Commercial loans	1,720,455	1,657,082
90 days past due and still accruing	366	673
Non-accrual Loans	3,595	3,096
Retail real estate | 30 to 59 days past due and still accruing
Financing Receivable, Past Due [Line Items]
Commercial loans	2,781	4,709
Retail real estate | 60 to 89 days past due and still accruing
Financing Receivable, Past Due [Line Items]
Commercial loans	927	1,239
Retail other
Financing Receivable, Past Due [Line Items]
Commercial loans	295,531	302,124
90 days past due and still accruing	9	0
Non-accrual Loans	157	153
Retail other | 30 to 59 days past due and still accruing
Financing Receivable, Past Due [Line Items]
Commercial loans	886	414
Retail other | 60 to 89 days past due and still accruing
Financing Receivable, Past Due [Line Items]
Commercial loans	195	60
Total retail loans
Financing Receivable, Past Due [Line Items]
Commercial loans	2,015,986	1,959,206
90 days past due and still accruing	375	673
Non-accrual Loans	3,752	3,249
Total retail loans | 30 to 59 days past due and still accruing
Financing Receivable, Past Due [Line Items]
Commercial loans	3,667	5,123
Total retail loans | 60 to 89 days past due and still accruing
Financing Receivable, Past Due [Line Items]
Commercial loans	$ 1,122	$ 1,299