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Loans and Allowance for Credit Losses - Age Analysis of Past Due Loans, Excluding Loans Acquired, Segregated by Class of Loans (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | $ 16,845,670 | $ 16,142,124
90 Days Past Due & Accruing | 1,147 | 507
Gross 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 55,666 | 38,416
90 Days or More Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 42,701 | 26,886
Total Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 98,367 | 65,302
Current |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 16,747,303 | 16,076,822
Consumer |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 318,666 | 349,810
90 Days Past Due & Accruing | 791 | 225
Consumer | Gross 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 3,205 | 2,149
Consumer | 90 Days or More Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 1,108 | 623
Consumer | Total Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 4,313 | 2,772
Consumer | Current |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 314,353 | 347,038
Consumer | Credit cards |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 191,204 | 196,928
90 Days Past Due & Accruing | 791 | 225
Consumer | Credit cards | Gross 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 1,734 | 1,297
Consumer | Credit cards | 90 Days or More Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 892 | 409
Consumer | Credit cards | Total Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 2,626 | 1,706
Consumer | Credit cards | Current |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 188,578 | 195,222
Consumer | Other consumer |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 127,462 | 152,882
90 Days Past Due & Accruing | 0 | 0
Consumer | Other consumer | Gross 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 1,471 | 852
Consumer | Other consumer | 90 Days or More Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 216 | 214
Consumer | Other consumer | Total Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 1,687 | 1,066
Consumer | Other consumer | Current |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 125,775 | 151,816
Real Estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 13,338,186 | 12,581,262
90 Days Past Due & Accruing | 7 | 106
Real Estate | Gross 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 38,570 | 31,061
Real Estate | 90 Days or More Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 18,324 | 18,618
Real Estate | Total Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 56,894 | 49,679
Real Estate | Current |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 13,281,292 | 12,531,583
Real Estate | Construction and development |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 3,144,220 | 2,566,649
90 Days Past Due & Accruing | 0 | 0
Real Estate | Construction and development | Gross 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 3,171 | 4,677
Real Estate | Construction and development | 90 Days or More Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 2,190 | 443
Real Estate | Construction and development | Total Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 5,361 | 5,120
Real Estate | Construction and development | Current |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 3,138,859 | 2,561,529
Real Estate | Single family residential |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 2,641,556 | 2,546,115
90 Days Past Due & Accruing | 7 | 106
Real Estate | Single family residential | Gross 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 30,697 | 23,625
Real Estate | Single family residential | 90 Days or More Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 12,522 | 11,075
Real Estate | Single family residential | Total Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 43,219 | 34,700
Real Estate | Single family residential | Current |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 2,598,337 | 2,511,415
Real Estate | Other commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 7,552,410 | 7,468,498
90 Days Past Due & Accruing | 0 | 0
Real Estate | Other commercial | Gross 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 4,702 | 2,759
Real Estate | Other commercial | 90 Days or More Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 3,612 | 7,100
Real Estate | Other commercial | Total Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 8,314 | 9,859
Real Estate | Other commercial | Current |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 7,544,096 | 7,458,639
Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 2,722,886 | 2,837,913
90 Days Past Due & Accruing | 349 | 176
Commercial | Gross 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 13,891 | 5,145
Commercial | 90 Days or More Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 23,266 | 7,642
Commercial | Total Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 37,157 | 12,787
Commercial | Current |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 2,685,729 | 2,825,126
Commercial | Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 2,490,176 | 2,632,290
90 Days Past Due & Accruing | 349 | 176
Commercial | Commercial | Gross 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 13,799 | 5,034
Commercial | Commercial | 90 Days or More Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 22,750 | 7,575
Commercial | Commercial | Total Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 36,549 | 12,609
Commercial | Commercial | Current |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 2,453,627 | 2,619,681
Commercial | Agricultural |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 232,710 | 205,623
90 Days Past Due & Accruing | 0 | 0
Commercial | Agricultural | Gross 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 92 | 111
Commercial | Agricultural | 90 Days or More Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 516 | 67
Commercial | Agricultural | Total Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 608 | 178
Commercial | Agricultural | Current |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 232,102 | 205,445
Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 465,932 | 373,139
90 Days Past Due & Accruing | 0 | 0
Other | Gross 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 0 | 61
Other | 90 Days or More Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 3 | 3
Other | Total Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 3 | 64
Other | Current |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | $ 465,929 | $ 373,075

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