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Loans and Leases - Major Classes of Loans And Leases (Detail) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Commercial, financial and agricultural:
Total commercial, financial & agricultural	$ 14,274,274	$ 11,881,005
Residential real estate	6,098,262	5,507,384
Construction & land development	3,570,902	3,509,034
Consumer:
Bankcard	9,686	9,998
Other consumer	767,496	773,077
Less: Unearned income	(11,498)	(7,005)
Loans and leases, net of unearned income	24,709,122	21,673,493
Owner-Occupied Commercial Real Estate [Member]
Commercial, financial and agricultural:
Total commercial, financial & agricultural	2,145,921	1,590,002
Nonowner-Occupied Commercial Real Estate [Member]
Commercial, financial and agricultural:
Total commercial, financial & agricultural	8,343,520	6,939,641
Other Commercial Loans And Leases [Member]
Commercial, financial and agricultural:
Total commercial, financial & agricultural	$ 3,784,833	$ 3,351,362

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- Definition

Interest and fees that has been collected on a loan by a lending institution but has not yet been recognized as income.

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- Definition

The Gross carrying amount of Loans and Finance Receivables from various Credit transaction before Providing for Doubtful accounts.

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- Definition

The Gross carrying amount of Loans and Finance Receivables from various Credit transaction Specifically Bank Credit Cards before Providing for Doubtful accounts.

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- Definition

The gross carrying amount of Loans and Finance Receivables from the transacation with customers classified as Other before providing for doubtful accounts.

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Loans and Leases Net of Unearned Income.

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- Definition

Reflects the gross carrying amount of unpaid loans issued to individuals or commercial developers to build, improve or remodel a residential home or commercial property. Such loans are usually secured by the property; and after the construction period, the borrower generally will obtain long-term financing to replace and satisfy the construction loan.

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The gross carrying amount of mortgage loans to individuals including home equity lines of credit.

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