Loans and Allowance for Credit Losses - Nonaccrual Loans, Excluding Loans Acquired, Segregated by Class of Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Financing Receivable, Past Due [Line Items]
Loans in nonaccrual status	$ 102,891	$ 83,325
Consumer
Financing Receivable, Past Due [Line Items]
Loans in nonaccrual status	914	1,076
Consumer | Credit cards
Financing Receivable, Past Due [Line Items]
Loans in nonaccrual status	570	487
Consumer | Other consumer
Financing Receivable, Past Due [Line Items]
Loans in nonaccrual status	344	589
Real Estate
Financing Receivable, Past Due [Line Items]
Loans in nonaccrual status	56,549	41,626
Real Estate | Construction and development
Financing Receivable, Past Due [Line Items]
Loans in nonaccrual status	2,125	2,457
Real Estate | Single family residential
Financing Receivable, Past Due [Line Items]
Loans in nonaccrual status	31,186	27,209
Real Estate | Other commercial
Financing Receivable, Past Due [Line Items]
Loans in nonaccrual status	23,238	11,960
Commercial
Financing Receivable, Past Due [Line Items]
Loans in nonaccrual status	45,425	40,620
Commercial | Commercial
Financing Receivable, Past Due [Line Items]
Loans in nonaccrual status	44,878	39,886
Commercial | Agricultural
Financing Receivable, Past Due [Line Items]
Loans in nonaccrual status	547	734
Other
Financing Receivable, Past Due [Line Items]
Loans in nonaccrual status	$ 3	$ 3