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Loans and Allowance for Credit Losses - Credit Risk Profile of Loan Portfolio on Amortized Cost Basis Based on Risk Rating Category and Year of Origination (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
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Credit Quality Information [Abstract] |  |
Current fiscal year | $ 672,988 | $ 862,051
Fiscal year before current fiscal year | 740,224 | 653,404
Two years before current fiscal year | 510,489 | 1,261,147
Three years before current fiscal year | 1,146,686 | 891,374
Four years before current fiscal year | 862,738 | 546,507
Prior | 1,749,059 | 1,377,588
Revolving Loans | 84,815 | 80,391
Current period gross write-offs, current fiscal year | 0 | 108
Current period gross write-offs, fiscal year before current fiscal year | 288 | 2,369
Current period gross write-offs, two year before current fiscal year | 1,127 | 625
Current period gross write-offs, three year before current fiscal year | 1,310 | 602
Current period gross write-offs, four year before current fiscal year | 348 | 69
Current period gross write-offs, prior | 1,271 | 1,975
Current period gross write-offs, revolving loans | 0 | 0
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 5,766,999 | 5,672,462
Current period gross write-offs, total loans receivables | 4,344 | 5,748
Pass |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 670,980 | 859,452
Fiscal year before current fiscal year | 727,128 | 626,738
Two years before current fiscal year | 479,425 | 1,245,490
Three years before current fiscal year | 1,122,777 | 885,295
Four years before current fiscal year | 853,232 | 542,310
Prior | 1,708,618 | 1,340,099
Revolving Loans | 83,993 | 79,714
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 5,646,153 | 5,579,098
Special Mention |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 1,485 | 1,505
Fiscal year before current fiscal year | 10,850 | 17,281
Two years before current fiscal year | 27,197 | 6,668
Three years before current fiscal year | 16,255 | 4,213
Four years before current fiscal year | 5,843 | 3,488
Prior | 20,185 | 24,634
Revolving Loans | 0 | 59
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 81,815 | 57,848
Substandard |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 523 | 1,094
Fiscal year before current fiscal year | 2,246 | 9,385
Two years before current fiscal year | 3,867 | 8,989
Three years before current fiscal year | 7,654 | 1,866
Four years before current fiscal year | 3,663 | 709
Prior | 20,256 | 12,855
Revolving Loans | 822 | 618
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 39,031 | 35,516
Agricultural Loans |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 160,189 | 176,862
Fiscal year before current fiscal year | 87,484 | 33,324
Two years before current fiscal year | 19,586 | 16,332
Three years before current fiscal year | 21,554 | 9,262
Four years before current fiscal year | 13,906 | 1,585
Prior | 3,655 | 2,306
Revolving Loans | 0 | 0
Current period gross write-offs, current fiscal year | 0 | 0
Current period gross write-offs, fiscal year before current fiscal year | 280 | 2,213
Current period gross write-offs, two year before current fiscal year | 1,081 | 100
Current period gross write-offs, three year before current fiscal year | 836 | 52
Current period gross write-offs, four year before current fiscal year | 306 | 0
Current period gross write-offs, prior | 0 | 45
Current period gross write-offs, revolving loans | 0 | 0
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 306,374 | 239,671
Current period gross write-offs, total loans receivables | 2,503 | 2,410
Agricultural Loans | Pass |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 158,666 | 175,402
Fiscal year before current fiscal year | 86,034 | 24,024
Two years before current fiscal year | 16,268 | 13,147
Three years before current fiscal year | 20,614 | 9,162
Four years before current fiscal year | 13,784 | 1,585
Prior | 3,655 | 2,306
Revolving Loans | 0 | 0
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 299,021 | 225,626
Agricultural Loans | Special Mention |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 1,113 | 617
Fiscal year before current fiscal year | 1,265 | 2,208
Two years before current fiscal year | 2,459 | 976
Three years before current fiscal year | 927 | 100
Four years before current fiscal year | 122 | 0
Prior | 0 | 0
Revolving Loans | 0 | 0
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 5,886 | 3,901
Agricultural Loans | Substandard |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 410 | 843
Fiscal year before current fiscal year | 185 | 7,092
Two years before current fiscal year | 859 | 2,209
Three years before current fiscal year | 13 | 0
Four years before current fiscal year | 0 | 0
Prior | 0 | 0
Revolving Loans | 0 | 0
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 1,467 | 10,144
Commercial Industrial And Other Portfolio Segment |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 252,615 | 307,904
Fiscal year before current fiscal year | 262,522 | 230,970
Two years before current fiscal year | 118,115 | 280,911
Three years before current fiscal year | 233,971 | 184,236
Four years before current fiscal year | 176,978 | 132,123
Prior | 444,460 | 369,008
Revolving Loans | 0 | 0
Current period gross write-offs, current fiscal year | 0 | 10
Current period gross write-offs, fiscal year before current fiscal year | 0 | 47
Current period gross write-offs, two year before current fiscal year | 14 | 207
Current period gross write-offs, three year before current fiscal year | 53 | 378
Current period gross write-offs, four year before current fiscal year | 0 | 10
Current period gross write-offs, prior | 645 | 36
Current period gross write-offs, revolving loans | 0 | 0
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 1,488,661 | 1,505,152
Current period gross write-offs, total loans receivables | 712 | 688
Commercial Industrial And Other Portfolio Segment | Pass |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 252,605 | 307,785
Fiscal year before current fiscal year | 256,036 | 228,411
Two years before current fiscal year | 106,096 | 278,845
Three years before current fiscal year | 231,321 | 183,042
Four years before current fiscal year | 172,600 | 131,005
Prior | 434,968 | 360,610
Revolving Loans | 0 | 0
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 1,453,626 | 1,489,698
Commercial Industrial And Other Portfolio Segment | Special Mention |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 10 | 54
Fiscal year before current fiscal year | 6,238 | 1,149
Two years before current fiscal year | 9,731 | 1,277
Three years before current fiscal year | 1,571 | 748
Four years before current fiscal year | 4,132 | 1,020
Prior | 2,108 | 7,583
Revolving Loans | 0 | 0
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 23,790 | 11,831
Commercial Industrial And Other Portfolio Segment | Substandard |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 0 | 65
Fiscal year before current fiscal year | 248 | 1,410
Two years before current fiscal year | 2,288 | 789
Three years before current fiscal year | 1,079 | 446
Four years before current fiscal year | 246 | 98
Prior | 7,384 | 815
Revolving Loans | 0 | 0
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 11,245 | 3,623
Consumer Loans |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 3,290 | 5,110
Fiscal year before current fiscal year | 3,571 | 5,159
Two years before current fiscal year | 3,771 | 24,703
Three years before current fiscal year | 18,296 | 12,026
Four years before current fiscal year | 8,506 | 4,548
Prior | 4,170 | 2,414
Revolving Loans | 0 | 0
Current period gross write-offs, current fiscal year | 0 | 98
Current period gross write-offs, fiscal year before current fiscal year | 8 | 63
Current period gross write-offs, two year before current fiscal year | 23 | 154
Current period gross write-offs, three year before current fiscal year | 83 | 139
Current period gross write-offs, four year before current fiscal year | 42 | 59
Current period gross write-offs, prior | 471 | 1,491
Current period gross write-offs, revolving loans | 0 | 0
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 41,604 | 53,960
Current period gross write-offs, total loans receivables | 627 | 2,004
Consumer Loans | Pass |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 3,290 | 5,098
Fiscal year before current fiscal year | 3,530 | 5,138
Two years before current fiscal year | 3,750 | 24,430
Three years before current fiscal year | 18,118 | 11,810
Four years before current fiscal year | 8,361 | 4,494
Prior | 4,105 | 2,385
Revolving Loans | 0 | 0
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 41,154 | 53,355
Consumer Loans | Special Mention |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 0 | 0
Fiscal year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 14
Three years before current fiscal year | 51 | 0
Four years before current fiscal year | 0 | 0
Prior | 0 | 0
Revolving Loans | 0 | 0
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 51 | 14
Consumer Loans | Substandard |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 0 | 12
Fiscal year before current fiscal year | 41 | 21
Two years before current fiscal year | 21 | 259
Three years before current fiscal year | 127 | 216
Four years before current fiscal year | 145 | 54
Prior | 65 | 29
Revolving Loans | 0 | 0
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 399 | 591
Real Estate Loan |  |
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 3,930,360 | 3,873,679
Real Estate Loan | Construction and Land Development |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 37,106 | 82,696
Fiscal year before current fiscal year | 105,536 | 101,715
Two years before current fiscal year | 108,091 | 14,396
Three years before current fiscal year | 13,798 | 15,817
Four years before current fiscal year | 14,984 | 4,735
Prior | 19,297 | 16,734
Revolving Loans | 0 | 0
Current period gross write-offs, current fiscal year | 0 | 0
Current period gross write-offs, fiscal year before current fiscal year | 0 | 0
Current period gross write-offs, two year before current fiscal year | 0 | 0
Current period gross write-offs, three year before current fiscal year | 0 | 0
Current period gross write-offs, four year before current fiscal year | 0 | 0
Current period gross write-offs, prior | 0 | 0
Current period gross write-offs, revolving loans | 0 | 0
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 298,812 | 236,093
Current period gross write-offs, total loans receivables | 0 | 0
Real Estate Loan | Construction and Land Development | Pass |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 37,106 | 82,696
Fiscal year before current fiscal year | 105,536 | 101,715
Two years before current fiscal year | 108,091 | 14,390
Three years before current fiscal year | 13,793 | 15,817
Four years before current fiscal year | 14,984 | 4,735
Prior | 18,923 | 16,342
Revolving Loans | 0 | 0
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 298,433 | 235,695
Real Estate Loan | Construction and Land Development | Special Mention |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 0 | 0
Fiscal year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 0
Prior | 366 | 382
Revolving Loans | 0 | 0
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 366 | 382
Real Estate Loan | Construction and Land Development | Substandard |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 0 | 0
Fiscal year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 6
Three years before current fiscal year | 5 | 0
Four years before current fiscal year | 0 | 0
Prior | 8 | 10
Revolving Loans | 0 | 0
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 13 | 16
Real Estate Loan | Agricultural |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 23,519 | 25,824
Fiscal year before current fiscal year | 24,579 | 17,625
Two years before current fiscal year | 14,850 | 160,506
Three years before current fiscal year | 136,357 | 56,069
Four years before current fiscal year | 63,130 | 50,455
Prior | 119,082 | 80,281
Revolving Loans | 0 | 0
Current period gross write-offs, current fiscal year | 0 | 0
Current period gross write-offs, fiscal year before current fiscal year | 0 | 0
Current period gross write-offs, two year before current fiscal year | 0 | 0
Current period gross write-offs, three year before current fiscal year | 0 | 0
Current period gross write-offs, four year before current fiscal year | 0 | 0
Current period gross write-offs, prior | 0 | 0
Current period gross write-offs, revolving loans | 0 | 0
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 381,517 | 390,760
Current period gross write-offs, total loans receivables | 0 | 0
Real Estate Loan | Agricultural | Pass |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 23,371 | 25,824
Fiscal year before current fiscal year | 24,379 | 17,292
Two years before current fiscal year | 13,483 | 159,433
Three years before current fiscal year | 134,983 | 55,083
Four years before current fiscal year | 62,151 | 48,700
Prior | 110,630 | 73,592
Revolving Loans | 0 | 0
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 368,997 | 379,924
Real Estate Loan | Agricultural | Special Mention |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 148 | 0
Fiscal year before current fiscal year | 200 | 192
Two years before current fiscal year | 1,367 | 107
Three years before current fiscal year | 800 | 986
Four years before current fiscal year | 979 | 1,755
Prior | 7,319 | 5,630
Revolving Loans | 0 | 0
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 10,813 | 8,670
Real Estate Loan | Agricultural | Substandard |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 0 | 0
Fiscal year before current fiscal year | 0 | 141
Two years before current fiscal year | 0 | 966
Three years before current fiscal year | 574 | 0
Four years before current fiscal year | 0 | 0
Prior | 1,133 | 1,059
Revolving Loans | 0 | 0
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 1,707 | 2,166
Real Estate Loan | Commercial And Multifamily Portfolio Segment |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 160,943 | 216,956
Fiscal year before current fiscal year | 220,010 | 227,485
Two years before current fiscal year | 212,003 | 688,599
Three years before current fiscal year | 653,615 | 537,576
Four years before current fiscal year | 512,437 | 290,568
Prior | 995,236 | 789,045
Revolving Loans | 0 | 0
Current period gross write-offs, current fiscal year | 0 | 0
Current period gross write-offs, fiscal year before current fiscal year | 0 | 0
Current period gross write-offs, two year before current fiscal year | 0 | 151
Current period gross write-offs, three year before current fiscal year | 338 | 0
Current period gross write-offs, four year before current fiscal year | 0 | 0
Current period gross write-offs, prior | 70 | 300
Current period gross write-offs, revolving loans | 0 | 0
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 2,754,244 | 2,750,229
Current period gross write-offs, total loans receivables | 408 | 451
Real Estate Loan | Commercial And Multifamily Portfolio Segment | Pass |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 160,943 | 216,297
Fiscal year before current fiscal year | 215,564 | 213,704
Two years before current fiscal year | 198,315 | 680,665
Three years before current fiscal year | 636,078 | 535,056
Four years before current fiscal year | 509,632 | 289,855
Prior | 980,943 | 774,516
Revolving Loans | 0 | 0
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 2,701,475 | 2,710,093
Real Estate Loan | Commercial And Multifamily Portfolio Segment | Special Mention |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 0 | 659
Fiscal year before current fiscal year | 2,973 | 13,732
Two years before current fiscal year | 13,640 | 4,090
Three years before current fiscal year | 12,635 | 2,053
Four years before current fiscal year | 298 | 713
Prior | 9,683 | 10,462
Revolving Loans | 0 | 0
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 39,229 | 31,709
Real Estate Loan | Commercial And Multifamily Portfolio Segment | Substandard |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 0 | 0
Fiscal year before current fiscal year | 1,473 | 49
Two years before current fiscal year | 48 | 3,844
Three years before current fiscal year | 4,902 | 467
Four years before current fiscal year | 2,507 | 0
Prior | 4,610 | 4,067
Revolving Loans | 0 | 0
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 13,540 | 8,427
1-4 Family | Real Estate Loan |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 35,326 | 46,699
Fiscal year before current fiscal year | 36,522 | 37,126
Two years before current fiscal year | 34,073 | 75,700
Three years before current fiscal year | 69,095 | 76,388
Four years before current fiscal year | 72,797 | 62,493
Prior | 163,159 | 117,800
Revolving Loans | 84,815 | 80,391
Current period gross write-offs, current fiscal year | 0 | 0
Current period gross write-offs, fiscal year before current fiscal year | 0 | 46
Current period gross write-offs, two year before current fiscal year | 9 | 13
Current period gross write-offs, three year before current fiscal year | 0 | 33
Current period gross write-offs, four year before current fiscal year | 0 | 0
Current period gross write-offs, prior | 85 | 103
Current period gross write-offs, revolving loans | 0 | 0
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 495,787 | 496,597
Current period gross write-offs, total loans receivables | 94 | 195
1-4 Family | Real Estate Loan | Pass |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 34,999 | 46,350
Fiscal year before current fiscal year | 36,049 | 36,454
Two years before current fiscal year | 33,422 | 74,580
Three years before current fiscal year | 67,870 | 75,325
Four years before current fiscal year | 71,720 | 61,936
Prior | 155,394 | 110,348
Revolving Loans | 83,993 | 79,714
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 483,447 | 484,707
1-4 Family | Real Estate Loan | Special Mention |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 214 | 175
Fiscal year before current fiscal year | 174 | 0
Two years before current fiscal year | 0 | 204
Three years before current fiscal year | 271 | 326
Four years before current fiscal year | 312 | 0
Prior | 709 | 577
Revolving Loans | 0 | 59
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | 1,680 | 1,341
1-4 Family | Real Estate Loan | Substandard |  |
Credit Quality Information [Abstract] |  |
Current fiscal year | 113 | 174
Fiscal year before current fiscal year | 299 | 672
Two years before current fiscal year | 651 | 916
Three years before current fiscal year | 954 | 737
Four years before current fiscal year | 765 | 557
Prior | 7,056 | 6,875
Revolving Loans | 822 | 618
Loans Receivable Aging Analysis [Abstract] |  |
Total Loans Receivable | $ 10,660 | $ 10,549

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