v3.26.1
Loans and Allowance for Credit Losses - Credit Risk Profile of Loan Portfolio Based on Risk Rating Category and Payment Activity (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Credit Quality Information [Abstract]    
Current fiscal year $ 708,385 $ 1,361,714
Fiscal year before current fiscal year 1,334,349 649,961
Two years before current fiscal year 728,280 437,734
Three years before current fiscal year 443,439 1,059,821
Four years before current fiscal year 1,115,094 806,863
Prior 2,501,096 1,601,795
Revolving Loans 103,699 93,486
Current period gross write-offs, current fiscal year 1 5
Current period gross write-offs, fiscal year before current fiscal year 1,325 1,014
Current period gross write-offs, two year before current fiscal year 160 1,387
Current period gross write-offs, three year before current fiscal year 1,294 1,551
Current period gross write-offs, four year before current fiscal year 494 846
Current period gross write-offs, prior 1,209 3,070
Current period gross write-offs, revolving loans 0 0
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 6,934,342 6,011,374
Current period gross write-offs, total loans receivables 4,483 7,873
Pass    
Credit Quality Information [Abstract]    
Current fiscal year 688,020 1,339,692
Fiscal year before current fiscal year 1,299,033 632,760
Two years before current fiscal year 693,043 412,275
Three years before current fiscal year 415,594 1,007,252
Four years before current fiscal year 1,062,196 801,276
Prior 2,394,797 1,525,024
Revolving Loans 102,603 92,629
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 6,655,286 5,810,908
Special Mention    
Credit Quality Information [Abstract]    
Current fiscal year 11,940 20,846
Fiscal year before current fiscal year 21,650 9,684
Two years before current fiscal year 15,562 4,907
Three years before current fiscal year 12,314 43,446
Four years before current fiscal year 32,905 1,756
Prior 44,683 39,871
Revolving Loans 100 0
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 139,154 120,510
Substandard    
Credit Quality Information [Abstract]    
Current fiscal year 8,425 1,176
Fiscal year before current fiscal year 13,666 7,517
Two years before current fiscal year 19,675 20,552
Three years before current fiscal year 15,531 9,123
Four years before current fiscal year 19,993 3,831
Prior 61,616 36,900
Revolving Loans 996 857
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 139,902 79,956
Commercial And Multifamily Portfolio Segment    
Credit Quality Information [Abstract]    
Current period gross write-offs, current fiscal year 0 0
Current period gross write-offs, fiscal year before current fiscal year 0 699
Current period gross write-offs, two year before current fiscal year 0 0
Current period gross write-offs, three year before current fiscal year 753 391
Current period gross write-offs, four year before current fiscal year 368 0
Current period gross write-offs, prior 0 107
Current period gross write-offs, revolving loans 0 0
Loans Receivable Aging Analysis [Abstract]    
Current period gross write-offs, total loans receivables 1,121 1,197
Agricultural Loans    
Credit Quality Information [Abstract]    
Current fiscal year 146,208 232,326
Fiscal year before current fiscal year 120,621 45,804
Two years before current fiscal year 44,131 10,179
Three years before current fiscal year 10,357 10,996
Four years before current fiscal year 15,418 6,410
Prior 20,079 2,560
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 1,324 280
Current period gross write-offs, two year before current fiscal year 144 1,081
Current period gross write-offs, three year before current fiscal year 218 836
Current period gross write-offs, four year before current fiscal year 0 306
Current period gross write-offs, prior 429 0
Current period gross write-offs, revolving loans 0 0
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 356,814 308,275
Current period gross write-offs, total loans receivables 2,115 2,503
Agricultural Loans | Pass    
Credit Quality Information [Abstract]    
Current fiscal year 145,591 230,666
Fiscal year before current fiscal year 106,537 45,361
Two years before current fiscal year 34,310 7,684
Three years before current fiscal year 10,299 10,151
Four years before current fiscal year 14,658 6,363
Prior 19,287 2,560
Revolving Loans 0 0
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 330,682 302,785
Agricultural Loans | Special Mention    
Credit Quality Information [Abstract]    
Current fiscal year 326 1,209
Fiscal year before current fiscal year 1,540 76
Two years before current fiscal year 125 11
Three years before current fiscal year 36 0
Four years before current fiscal year 139 23
Prior 644 0
Revolving Loans 0 0
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 2,810 1,319
Agricultural Loans | Substandard    
Credit Quality Information [Abstract]    
Current fiscal year 291 451
Fiscal year before current fiscal year 12,544 367
Two years before current fiscal year 9,696 2,484
Three years before current fiscal year 22 845
Four years before current fiscal year 621 24
Prior 148 0
Revolving Loans 0 0
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 23,322 4,171
Commercial Industrial And Other Portfolio Segment    
Credit Quality Information [Abstract]    
Current fiscal year 158,385 451,351
Fiscal year before current fiscal year 488,577 225,203
Two years before current fiscal year 222,185 87,699
Three years before current fiscal year 92,259 219,631
Four years before current fiscal year 195,228 159,309
Prior 553,239 399,887
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 0 163
Current period gross write-offs, three year before current fiscal year 290 225
Current period gross write-offs, four year before current fiscal year 8 497
Current period gross write-offs, prior 12 1,600
Current period gross write-offs, revolving loans 0 0
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 1,709,873 1,543,080
Current period gross write-offs, total loans receivables 310 2,485
Commercial Industrial And Other Portfolio Segment | Pass    
Credit Quality Information [Abstract]    
Current fiscal year 158,176 431,942
Fiscal year before current fiscal year 469,721 214,908
Two years before current fiscal year 212,712 82,977
Three years before current fiscal year 87,576 210,658
Four years before current fiscal year 189,783 159,029
Prior 515,730 357,077
Revolving Loans 0 0
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 1,633,698 1,456,591
Commercial Industrial And Other Portfolio Segment | Special Mention    
Credit Quality Information [Abstract]    
Current fiscal year 59 19,409
Fiscal year before current fiscal year 18,856 8,898
Two years before current fiscal year 8,949 2,542
Three years before current fiscal year 2,670 7,965
Four years before current fiscal year 1,211 61
Prior 18,859 26,193
Revolving Loans 0 0
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 50,604 65,068
Commercial Industrial And Other Portfolio Segment | Substandard    
Credit Quality Information [Abstract]    
Current fiscal year 150 0
Fiscal year before current fiscal year 0 1,397
Two years before current fiscal year 524 2,180
Three years before current fiscal year 2,013 1,008
Four years before current fiscal year 4,234 219
Prior 18,650 16,617
Revolving Loans 0 0
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 25,571 21,421
Consumer Loans    
Credit Quality Information [Abstract]    
Current fiscal year 5,359 5,619
Fiscal year before current fiscal year 8,166 2,585
Two years before current fiscal year 3,787 2,821
Three years before current fiscal year 3,180 13,054
Four years before current fiscal year 9,795 5,643
Prior 5,191 2,196
Revolving Loans 0 0
Current period gross write-offs, current fiscal year 1 5
Current period gross write-offs, fiscal year before current fiscal year 1 23
Current period gross write-offs, two year before current fiscal year 16 27
Current period gross write-offs, three year before current fiscal year 33 99
Current period gross write-offs, four year before current fiscal year 71 43
Current period gross write-offs, prior 698 1,228
Current period gross write-offs, revolving loans 0 0
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 35,478 31,918
Current period gross write-offs, total loans receivables 820 1,425
Consumer Loans | Pass    
Credit Quality Information [Abstract]    
Current fiscal year 5,359 5,619
Fiscal year before current fiscal year 8,127 2,555
Two years before current fiscal year 3,757 2,812
Three years before current fiscal year 3,179 12,861
Four years before current fiscal year 9,604 5,511
Prior 5,053 2,119
Revolving Loans 0 0
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 35,079 31,477
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 0
Three years before current fiscal year 0 22
Four years before current fiscal year 30 0
Prior 0 0
Revolving Loans 0 0
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 30 22
Consumer Loans | Substandard    
Credit Quality Information [Abstract]    
Current fiscal year 0 0
Fiscal year before current fiscal year 39 30
Two years before current fiscal year 30 9
Three years before current fiscal year 1 171
Four years before current fiscal year 161 132
Prior 138 77
Revolving Loans 0 0
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 369 419
Real Estate Loan    
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 4,832,177 4,128,101
Real Estate Loan | Construction and Land Development    
Credit Quality Information [Abstract]    
Current fiscal year 80,817 114,696
Fiscal year before current fiscal year 110,481 99,757
Two years before current fiscal year 123,611 120,000
Three years before current fiscal year 4,073 5,172
Four years before current fiscal year 11,244 6,048
Prior 31,522 15,014
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 0 107
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 361,748 360,687
Current period gross write-offs, total loans receivables 0 107
Real Estate Loan | Construction and Land Development | Pass    
Credit Quality Information [Abstract]    
Current fiscal year 80,817 114,696
Fiscal year before current fiscal year 110,481 99,757
Two years before current fiscal year 120,411 119,602
Three years before current fiscal year 3,766 5,167
Four years before current fiscal year 11,239 6,048
Prior 28,970 14,659
Revolving Loans 0 0
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 355,684 359,929
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 0 398
Three years before current fiscal year 0 0
Four years before current fiscal year 0 0
Prior 330 348
Revolving Loans 0 0
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 330 746
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 3,200 0
Three years before current fiscal year 307 5
Four years before current fiscal year 5 0
Prior 2,222 7
Revolving Loans 0 0
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 5,734 12
Real Estate Loan | Agricultural    
Credit Quality Information [Abstract]    
Current fiscal year 66,020 43,584
Fiscal year before current fiscal year 31,190 22,573
Two years before current fiscal year 28,545 13,415
Three years before current fiscal year 13,805 130,517
Four years before current fiscal year 124,461 63,080
Prior 158,516 100,239
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 40 0
Current period gross write-offs, revolving loans 0 0
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 422,537 373,408
Current period gross write-offs, total loans receivables 40 0
Real Estate Loan | Agricultural | Pass    
Credit Quality Information [Abstract]    
Current fiscal year 51,402 42,758
Fiscal year before current fiscal year 29,818 22,040
Two years before current fiscal year 24,847 12,609
Three years before current fiscal year 12,712 107,950
Four years before current fiscal year 93,409 61,357
Prior 125,335 87,939
Revolving Loans 0 0
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 337,523 334,653
Real Estate Loan | Agricultural | Special Mention    
Credit Quality Information [Abstract]    
Current fiscal year 11,422 228
Fiscal year before current fiscal year 1,204 339
Two years before current fiscal year 3,698 806
Three years before current fiscal year 907 22,343
Four years before current fiscal year 21,919 1,331
Prior 15,625 7,810
Revolving Loans 0 0
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 54,775 32,857
Real Estate Loan | Agricultural | Substandard    
Credit Quality Information [Abstract]    
Current fiscal year 3,196 598
Fiscal year before current fiscal year 168 194
Two years before current fiscal year 0 0
Three years before current fiscal year 186 224
Four years before current fiscal year 9,133 392
Prior 17,556 4,490
Revolving Loans 0 0
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 30,239 5,898
Real Estate Loan | Commercial And Multifamily Portfolio Segment    
Credit Quality Information [Abstract]    
Current fiscal year 210,582 459,831
Fiscal year before current fiscal year 498,973 222,469
Two years before current fiscal year 260,960 174,368
Three years before current fiscal year 272,197 616,668
Four years before current fiscal year 651,205 501,098
Prior 1,420,106 929,718
Revolving Loans 0 0
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 3,314,023 2,904,152
Real Estate Loan | Commercial And Multifamily Portfolio Segment | Pass    
Credit Quality Information [Abstract]    
Current fiscal year 205,683 459,831
Fiscal year before current fiscal year 498,511 217,098
Two years before current fiscal year 252,454 157,923
Three years before current fiscal year 251,126 597,491
Four years before current fiscal year 636,772 498,456
Prior 1,397,494 916,195
Revolving Loans 0 0
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 3,242,040 2,846,994
Real Estate Loan | Commercial And Multifamily Portfolio Segment | Special Mention    
Credit Quality Information [Abstract]    
Current fiscal year 133 0
Fiscal year before current fiscal year 50 371
Two years before current fiscal year 2,790 1,150
Three years before current fiscal year 8,701 12,931
Four years before current fiscal year 9,434 248
Prior 8,560 4,760
Revolving Loans 0 0
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 29,668 19,460
Real Estate Loan | Commercial And Multifamily Portfolio Segment | Substandard    
Credit Quality Information [Abstract]    
Current fiscal year 4,766 0
Fiscal year before current fiscal year 412 5,000
Two years before current fiscal year 5,716 15,295
Three years before current fiscal year 12,370 6,246
Four years before current fiscal year 4,999 2,394
Prior 14,052 8,763
Revolving Loans 0 0
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 42,315 37,698
1-4 Family | Real Estate Loan | Residential Properties    
Credit Quality Information [Abstract]    
Current fiscal year 41,014 54,307
Fiscal year before current fiscal year 76,341 31,570
Two years before current fiscal year 45,061 29,252
Three years before current fiscal year 47,568 63,783
Four years before current fiscal year 107,743 65,275
Prior 312,443 152,181
Revolving Loans 103,699 93,486
Current period gross write-offs, current fiscal year 0 0
Current period gross write-offs, fiscal year before current fiscal year 0 12
Current period gross write-offs, two year before current fiscal year 0 9
Current period gross write-offs, three year before current fiscal year 0 0
Current period gross write-offs, four year before current fiscal year 47 0
Current period gross write-offs, prior 30 135
Current period gross write-offs, revolving loans 0 0
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 733,869 489,854
Current period gross write-offs, total loans receivables 77 156
1-4 Family | Real Estate Loan | Residential Properties | Pass    
Credit Quality Information [Abstract]    
Current fiscal year 40,992 54,180
Fiscal year before current fiscal year 75,838 31,041
Two years before current fiscal year 44,552 28,668
Three years before current fiscal year 46,936 62,974
Four years before current fiscal year 106,731 64,512
Prior 302,928 144,475
Revolving Loans 102,603 92,629
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 720,580 478,479
1-4 Family | Real Estate Loan | Residential Properties | 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 0 185
Four years before current fiscal year 172 93
Prior 665 760
Revolving Loans 100 0
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable 937 1,038
1-4 Family | Real Estate Loan | Residential Properties | Substandard    
Credit Quality Information [Abstract]    
Current fiscal year 22 127
Fiscal year before current fiscal year 503 529
Two years before current fiscal year 509 584
Three years before current fiscal year 632 624
Four years before current fiscal year 840 670
Prior 8,850 6,946
Revolving Loans 996 857
Loans Receivable Aging Analysis [Abstract]    
Total Loans Receivable $ 12,352 $ 10,337