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Loans and Allowance for Credit Losses - Loan Portfolio Aging Analysis (Details) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | $ 4,647,377 | $ 3,992,775
Total Loans Receivable | 4,648,663 | 3,995,523
Total Loans> 90 Days and Accruing | 0 | 0
Real Estate Loan |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 3,222,715 | 2,789,843
Total Loans> 90 Days and Accruing | 0 | 0
Real Estate Loan | 1-4 Family |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 424,230 | 400,313
Construction and Land Development | Real Estate Loan |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 141,072 | 145,118
Total Loans> 90 Days and Accruing | 0 | 0
Agricultural | Real Estate Loan |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 350,159 | 279,272
Total Loans> 90 Days and Accruing | 0 | 0
Residential Properties | Real Estate Loan | 1-4 Family |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 424,230 | 400,313
Total Loans> 90 Days and Accruing | 0 | 0
Residential Properties | Real Estate Loan | Multifamily |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 330,600 | 298,942
Total Loans> 90 Days and Accruing | 0 | 0
Commercial | Real Estate Loan |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 1,976,654 | 1,666,198
Total Loans> 90 Days and Accruing | 0 | 0
Agricultural Loans |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 142,406 | 151,484
Total Loans> 90 Days and Accruing | 0 | 0
Commercial and Industrial Loans |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 1,036,987 | 832,008
Total Loans> 90 Days and Accruing | 0 | 0
Consumer Loans |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 94,828 | 78,442
Total Loans> 90 Days and Accruing | 0 | 0
All Other Loans |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 151,727 | 143,746
Total Loans> 90 Days and Accruing | 0 | 0
Financial Asset, 30 to 59 Days Past Due |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 7,185 | 14,244
Financial Asset, 30 to 59 Days Past Due | Real Estate Loan |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 5,004 | 11,621
Financial Asset, 30 to 59 Days Past Due | Construction and Land Development | Real Estate Loan |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 0 | 159
Financial Asset, 30 to 59 Days Past Due | Agricultural | Real Estate Loan |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 0 | 0
Financial Asset, 30 to 59 Days Past Due | Residential Properties | Real Estate Loan | 1-4 Family |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 3,294 | 2,532
Financial Asset, 30 to 59 Days Past Due | Residential Properties | Real Estate Loan | Multifamily |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 4 | 0
Financial Asset, 30 to 59 Days Past Due | Commercial | Real Estate Loan |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 1,706 | 8,930
Financial Asset, 30 to 59 Days Past Due | Agricultural Loans |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 226 | 0
Financial Asset, 30 to 59 Days Past Due | Commercial and Industrial Loans |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 1,357 | 381
Financial Asset, 30 to 59 Days Past Due | Consumer Loans |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 598 | 388
Financial Asset, 30 to 59 Days Past Due | All Other Loans |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 0 | 1,854
Financial Asset, 60 to 89 Days Past Due |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 1,971 | 2,334
Financial Asset, 60 to 89 Days Past Due | Real Estate Loan |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 897 | 1,975
Financial Asset, 60 to 89 Days Past Due | Construction and Land Development | Real Estate Loan |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 0 | 199
Financial Asset, 60 to 89 Days Past Due | Agricultural | Real Estate Loan |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 241 | 222
Financial Asset, 60 to 89 Days Past Due | Residential Properties | Real Estate Loan | 1-4 Family |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 496 | 914
Financial Asset, 60 to 89 Days Past Due | Residential Properties | Real Estate Loan | Multifamily |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 0 | 0
Financial Asset, 60 to 89 Days Past Due | Commercial | Real Estate Loan |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 160 | 640
Financial Asset, 60 to 89 Days Past Due | Agricultural Loans |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 940 | 10
Financial Asset, 60 to 89 Days Past Due | Commercial and Industrial Loans |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 65 | 302
Financial Asset, 60 to 89 Days Past Due | Consumer Loans |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 69 | 47
Financial Asset, 60 to 89 Days Past Due | All Other Loans |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 0 | 0
Financial Asset, Equal to or Greater than 90 Days Past Due |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 12,879 | 8,238
Financial Asset, Equal to or Greater than 90 Days Past Due | Real Estate Loan |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 11,452 | 6,376
Financial Asset, Equal to or Greater than 90 Days Past Due | Construction and Land Development | Real Estate Loan |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 449 | 203
Financial Asset, Equal to or Greater than 90 Days Past Due | Agricultural | Real Estate Loan |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 192 | 1
Financial Asset, Equal to or Greater than 90 Days Past Due | Residential Properties | Real Estate Loan | 1-4 Family |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 918 | 2,012
Financial Asset, Equal to or Greater than 90 Days Past Due | Residential Properties | Real Estate Loan | Multifamily |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 544 | 1,676
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial | Real Estate Loan |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 9,349 | 2,484
Financial Asset, Equal to or Greater than 90 Days Past Due | Agricultural Loans |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 0 | 588
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial and Industrial Loans |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 1,332 | 1,156
Financial Asset, Equal to or Greater than 90 Days Past Due | Consumer Loans |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 95 | 118
Financial Asset, Equal to or Greater than 90 Days Past Due | All Other Loans |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 0 | 0
Total Past Due |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 22,035 | 24,816
Total Past Due | Real Estate Loan |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 17,353 | 19,972
Total Past Due | Construction and Land Development | Real Estate Loan |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 449 | 561
Total Past Due | Agricultural | Real Estate Loan |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 433 | 223
Total Past Due | Residential Properties | Real Estate Loan | 1-4 Family |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 4,708 | 5,458
Total Past Due | Residential Properties | Real Estate Loan | Multifamily |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 548 | 1,676
Total Past Due | Commercial | Real Estate Loan |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 11,215 | 12,054
Total Past Due | Agricultural Loans |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 1,166 | 598
Total Past Due | Commercial and Industrial Loans |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 2,754 | 1,839
Total Past Due | Consumer Loans |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 762 | 553
Total Past Due | All Other Loans |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 0 | 1,854
Current |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 4,626,628 | 3,970,707
Current | Real Estate Loan |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 3,205,362 | 2,769,871
Current | Construction and Land Development | Real Estate Loan |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 140,623 | 144,557
Current | Agricultural | Real Estate Loan |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 349,726 | 279,049
Current | Residential Properties | Real Estate Loan | 1-4 Family |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 419,522 | 394,855
Current | Residential Properties | Real Estate Loan | Multifamily |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 330,052 | 297,266
Current | Commercial | Real Estate Loan |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 1,965,439 | 1,654,144
Current | Agricultural Loans |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 141,240 | 150,886
Current | Commercial and Industrial Loans |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 1,034,233 | 830,169
Current | Consumer Loans |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | 94,066 | 77,889
Current | All Other Loans |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Past Due | $ 151,727 | $ 141,892

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