Loans and Leases - Summary of Major Loan and Lease Categories (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024	Mar. 31, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases held for investment	$ 6,833,037	$ 6,826,583	$ 6,579,086
Less: Allowance for credit losses, loans and leases	(87,790)	(87,091)
Net loans and leases held for investment	6,745,247	6,739,492
Imputed interest on lease financings, included in the above table	(30,318)	(31,927)
Net deferred costs, included in the above table	6,839	6,992
Overdraft deposits included in the above table	81	104
Commercial, financial and agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases held for investment	1,034,361	1,037,835	1,014,568
Real estate-commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases held for investment	3,546,402	3,530,451	3,283,729
Real estate-construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases held for investment	281,785	274,483	379,995
Real estate-residential secured for business purpose
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases held for investment	536,082	536,095	524,196
Real estate-residential secured for personal purpose
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases held for investment	992,767	994,972	922,412
Real estate-home equity secured for personal purpose
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases held for investment	189,119	186,836	177,446
Loans to individuals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases held for investment	16,930	21,250	27,200
Lease financings
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases held for investment	$ 235,591	$ 244,661	$ 249,540

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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