Loans and Allowance for Credit Losses (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 26,333,096	$ 23,414,262
Loan losses, allowance	272,483	263,233
Loans and Leases Receivable, Net Amount	26,060,613	23,151,029
Commercial real estate - Owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	3,243,018	3,048,822
Commercial real estate - Non-owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	5,861,596	5,221,704
Consumer real estate – mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	4,047,051	3,680,684
Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	3,386,866	2,903,017
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	9,295,808	8,074,546
Consumer and other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 498,757	$ 485,489

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No definition available.

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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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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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Amount after allowance and 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 and loans held for sale.

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