Loans and Allowance for Credit Losses - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 33,769,150		$ 33,769,150		$ 32,676,091
Percentage of loan portfolio as commercial loan	79.80%		79.80%
Risk rated loans	$ 1,500		$ 1,500
Percentage of credit exposure to risk based capital	25.00%		25.00%
Loans and other extensions of credit granted to directors, executive officers, and their related entities	$ 41,400		$ 41,400		37,700
Amount drawn from loans and other extensions of credit granted	39,400		39,400		34,700
Commercial loans held-for-sale	16,046		16,046		9,280
Mortgage loans held-for-sale	29,600		29,600		20,200
Loans sold			365,700	$ 313,100
Gain (Loss) on Sale of Mortgage Loans	3,300	$ 1,600	6,149	$ 3,620
Consumer loans held-for-sale, excluding mortgage loans	$ 157,600		$ 157,600		$ 84,000
Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of credit exposure to risk based capital	72.90%		72.90%		84.20%
Non-owner occupied commercial real estate and multifamily loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of credit exposure to risk based capital	254.00%		254.00%		259.00%

Consumer loans held-for-sale, excluding mortgage loans

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For an unclassified balance sheet, reflects the maximum permissible amount of unpaid loan amounts due from related parties at the balance sheet date.

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Mortgage loans held-for-sale

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Refers to percentage of credit exposure (loans outstanding plus unfunded lines of credit) to total risk based capital to borrowers in certain industries.

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Refers to percentage of loan portfolio analyzed as commercial loan type with a specifically assigned risk rating in the allowance for loan loss assessment.

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The amount of risk rated loans that are subject to continual review by the loan officer at the end of the period,

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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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The gains (losses) included in earnings that represent the difference between the sale price and the carrying value of loans made to finance real estate acquisitions. This element refers to the gain (loss) and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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For an unclassified balance sheet, reflects the carrying amount of unpaid loan amounts due from related parties at the balance sheet date.

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Amount, before valuation allowance, of financing receivable classified as held-for-sale.

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The cash inflow from sales of loans that are secured with real estate mortgages and are held with the intention to resell in the near future.

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