Loans and Allowance for Credit Losses (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 33,162,873	$ 32,676,091
Loan losses, allowance	371,337	353,055
Loans and Leases Receivable, Net Amount	32,791,536	32,323,036
Commercial real estate - owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	4,044,973	4,044,896
Commercial real estate - non-owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	8,063,642	7,535,494
Consumer real estate – mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	4,828,416	4,851,531
Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	3,818,334	4,041,081
Commercial and Industrial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	11,893,198	11,666,691
Consumer and other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 514,310	$ 536,398

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 allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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