LOANS AND ALLOWANCE FOR CREDIT LOSSES - Schedule of Analysis of Past-Due Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	$ 20,739,906	$ 20,269,303
Loans 90 Days or More Past Due and Still Accruing	17,733	16,988
Total Loans Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	244,978	272,839
Loans 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	106,949	82,850
Loans 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	31,540	34,281
Loans 90 or More Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	106,489	155,708
Current Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	20,494,928	19,996,464
Commercial and Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	2,953,135	2,688,929
Loans 90 Days or More Past Due and Still Accruing	5,159	5,310
Commercial and Industrial | Total Loans Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	31,057	26,195
Commercial and Industrial | Loans 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	12,300	11,023
Commercial and Industrial | Loans 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	5,908	5,439
Commercial and Industrial | Loans 90 or More Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	12,849	9,733
Commercial and Industrial | Current Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	2,922,078	2,662,734
Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	221,735	275,809
Loans 90 Days or More Past Due and Still Accruing	0	0
Consumer | Total Loans Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	3,548	3,938
Consumer | Loans 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	2,672	2,308
Consumer | Loans 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	557	1,054
Consumer | Loans 90 or More Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	319	576
Consumer | Current Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	218,187	271,871
Mortgage Warehouse
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	965,053	818,728
Loans 90 Days or More Past Due and Still Accruing	0	0
Mortgage Warehouse | Total Loans Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	0	0
Mortgage Warehouse | Loans 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	0	0
Mortgage Warehouse | Loans 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	0	0
Mortgage Warehouse | Loans 90 or More Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	0	0
Mortgage Warehouse | Current Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	965,053	818,728
Municipal
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	441,408	492,668
Loans 90 Days or More Past Due and Still Accruing	0	0
Municipal | Total Loans Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	0	0
Municipal | Loans 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	0	0
Municipal | Loans 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	0	0
Municipal | Loans 90 or More Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	0	0
Municipal | Current Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	441,408	492,668
Premium Finance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	1,155,614	946,562
Loans 90 Days or More Past Due and Still Accruing	12,485	11,678
Premium Finance | Total Loans Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	33,868	30,889
Premium Finance | Loans 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	15,068	12,379
Premium Finance | Loans 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	6,315	6,832
Premium Finance | Loans 90 or More Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	12,485	11,678
Premium Finance | Current Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	1,121,746	915,673
Real Estate – Construction and Development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	1,998,506	2,129,187
Loans 90 Days or More Past Due and Still Accruing	89	0
Real Estate – Construction and Development | Total Loans Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	27,349	2,376
Real Estate – Construction and Development | Loans 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	23,102	2,094
Real Estate – Construction and Development | Loans 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	461	0
Real Estate – Construction and Development | Loans 90 or More Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	3,786	282
Real Estate – Construction and Development | Current Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	1,971,157	2,126,811
Real Estate – Commercial and Farmland
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	8,445,958	8,059,754
Loans 90 Days or More Past Due and Still Accruing	0	0
Real Estate – Commercial and Farmland | Total Loans Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	15,202	13,078
Real Estate – Commercial and Farmland | Loans 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	6,787	5,070
Real Estate – Commercial and Farmland | Loans 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	2,435	1,656
Real Estate – Commercial and Farmland | Loans 90 or More Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	5,980	6,352
Real Estate – Commercial and Farmland | Current Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	8,430,756	8,046,676
Real Estate - Residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	4,558,497	4,857,666
Loans 90 Days or More Past Due and Still Accruing	0	0
Real Estate - Residential | Total Loans Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	133,954	196,363
Real Estate - Residential | Loans 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	47,020	49,976
Real Estate - Residential | Loans 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	15,864	19,300
Real Estate - Residential | Loans 90 or More Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	71,070	127,087
Real Estate - Residential | Current Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, net of unearned income	$ 4,424,543	$ 4,661,303