LOANS AND ALLOWANCE FOR CREDIT LOSSES - Schedule of Loans Receivable (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	$ 20,739,906	$ 20,269,303
Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	2,953,135	2,688,929
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	221,735	275,809
Mortgage Warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	965,053	818,728
Municipal
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	441,408	492,668
Premium Finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	1,155,614	946,562
Real Estate – Construction and Development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	1,998,506	2,129,187
Real Estate – Commercial and Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	8,445,958	8,059,754
Real Estate - Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	$ 4,558,497	$ 4,857,666