Loans and Leases - Summary of Major Loan and Lease Categories (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024	Jun. 30, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases held for investment	$ 6,801,185	$ 6,826,583	$ 6,684,837
Less: Allowance for credit losses, loans and leases	(86,989)	(87,091)
Net loans and leases held for investment	6,714,196	6,739,492
Imputed interest on lease financings, included in the above table	(29,947)	(31,927)
Net deferred costs, included in the above table	6,646	6,992
Overdraft deposits included in the above table	170	104
Commercial, financial and agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases held for investment	1,052,246	1,037,835	1,055,332
Real estate-commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases held for investment	3,485,615	3,530,451	3,373,889
Real estate-construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases held for investment	302,424	274,483	313,229
Real estate-residential secured for business purpose
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases held for investment	535,210	536,095	532,628
Real estate-residential secured for personal purpose
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases held for investment	984,166	994,972	952,665
Real estate-home equity secured for personal purpose
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases held for investment	195,014	186,836	179,150
Loans to individuals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases held for investment	14,069	21,250	26,430
Lease financings
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases held for investment	$ 232,441	$ 244,661	$ 251,514

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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