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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Amount of deposits held by the entity that have been reclassified as loan balances receivable, for example, but not limited to, overdrafts receivable.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Loans and Leases - Summary of Major Loan and Lease Categories (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Jun. 30, 2025	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases held for investment	$ 6,785,482		$ 6,826,583
Less: Allowance for credit losses, loans and leases	(86,527)	$ (86,989)	(87,091)	$ (86,041)	$ (85,745)	$ (85,387)
Net loans and leases held for investment	6,698,955		6,739,492
Imputed interest on lease financings, included in the above table	(30,323)		(31,927)
Net deferred costs, included in the above table	6,540		6,992
Overdraft deposits included in the above table	125		104
Commercial, financial and agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases held for investment	996,612		1,037,835
Less: Allowance for credit losses, loans and leases	(16,548)	(16,979)	(16,079)	(14,689)	(14,545)	(13,699)
Real estate-commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases held for investment	3,517,803		3,530,451
Less: Allowance for credit losses, loans and leases	(45,856)	(46,338)	(46,867)	(46,634)	(45,978)	(45,849)
Real estate-construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases held for investment	309,365		274,483
Less: Allowance for credit losses, loans and leases	(5,386)	(5,253)	(4,924)	(5,542)	(6,153)	(6,543)
Real estate-residential secured for business purpose
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases held for investment	545,191		536,095
Less: Allowance for credit losses, loans and leases	(7,572)	(7,468)	(7,491)	(7,650)	(7,739)	(8,692)
Real estate-residential secured for personal purpose
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases held for investment	974,395		994,972
Less: Allowance for credit losses, loans and leases	(6,430)	(6,451)	(7,222)	(6,893)	(6,606)	(6,349)
Real estate-home equity secured for personal purpose
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases held for investment	197,503		186,836
Less: Allowance for credit losses, loans and leases	(1,616)	(1,609)	(1,706)	(1,695)	(1,688)	(1,289)
Loans to individuals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases held for investment	13,447		21,250
Less: Allowance for credit losses, loans and leases	(348)	(344)	(342)	(340)	(348)	(392)
Lease financings
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases held for investment	231,166		244,661
Less: Allowance for credit losses, loans and leases	$ (2,771)	$ (2,547)	$ (2,460)	$ (2,598)	$ (2,688)	$ (2,574)