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Loans - Credit risk profile by risk grade of commercial and consumer loans (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Dec. 31, 2023
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 $ 1,263,560   $ 4,676,676
Amortized Cost Basis by Origination Year - 2023/2022 4,488,305   8,985,446
Amortized Cost Basis by Origination Year - 2022/2021 8,992,115   6,291,335
Amortized Cost Basis by Origination Year - 2021/2020 6,120,857   2,591,604
Amortized Cost Basis by Origination Year - 2020/2019 2,502,463   2,079,547
Amortized Cost Basis by Origination Year - Prior 6,214,276   4,459,113
Amortized Cost Basis by Origination Year - Revolving 3,085,734   3,304,768
Total loans 32,667,310   32,388,489
Current-period gross charge-offs - 2024/2023     7,713
Current-period gross charge-offs - 2023/2022 902   4,973
Current-period gross charge-offs - 2022/2021 1,999   13,818
Current-period gross charge-offs - 2021/2020 212   977
Current-period gross charge-offs - 2020/2019 29   982
Current-period gross charge-offs - Prior 3,013   2,479
Current-period gross charge-offs - Revolving 1,785   9,706
Current-period gross charge-offs - Total 7,940 $ 4,627 40,648
30 days past due      
Loans      
Total loans 54,267   60,085
60 days past due      
Loans      
Total loans 22,587   18,276
90 days past due      
Loans      
Total loans 2,632   12,479
Construction and land development      
Loans      
Total loans 2,437,343   2,923,514
Construction and land development | 30 days past due      
Loans      
Total loans 45   624
Construction and land development | 60 days past due      
Loans      
Total loans 63    
Commercial non-owner occupied      
Loans      
Total loans 9,112,474   8,571,634
Commercial non-owner occupied | 30 days past due      
Loans      
Total loans 4,175   2,194
Commercial non-owner occupied | 60 days past due      
Loans      
Total loans 7,895   123
Commercial non-owner occupied | 90 days past due      
Loans      
Total loans 70   1,378
Commercial owner occupied real estate loan      
Loans      
Total loans 5,511,855   5,497,671
Commercial owner occupied real estate loan | 30 days past due      
Loans      
Total loans 9,183   3,852
Commercial owner occupied real estate loan | 60 days past due      
Loans      
Total loans 1,252   1,141
Commercial owner occupied real estate loan | 90 days past due      
Loans      
Total loans 80   988
Commercial and industrial      
Loans      
Total loans 5,544,131   5,504,539
Commercial and industrial | 30 days past due      
Loans      
Total loans 22,510   25,231
Commercial and industrial | 60 days past due      
Loans      
Total loans 7,243   7,194
Commercial and industrial | 90 days past due      
Loans      
Total loans 2,482   9,193
Other income producing property      
Loans      
Total loans 640,055   656,334
Other income producing property | 30 days past due      
Loans      
Total loans 313   569
Other income producing property | 60 days past due      
Loans      
Total loans 52   570
Consumer Owner Occupied Loans      
Loans      
Total loans 6,814,472   6,595,005
Consumer Owner Occupied Loans | 30 days past due      
Loans      
Total loans 6,682   7,903
Consumer Owner Occupied Loans | 60 days past due      
Loans      
Total loans 80   552
Consumer Owner Occupied Loans | 90 days past due      
Loans      
Total loans     920
Home equity loans      
Loans      
Total loans 1,408,594   1,398,445
Home equity loans | 30 days past due      
Loans      
Total loans 2,106   6,500
Home equity loans | 60 days past due      
Loans      
Total loans 1,226   1,326
Consumer loans      
Loans      
Total loans 1,196,895   1,233,650
Consumer loans | 30 days past due      
Loans      
Total loans 9,253   13,212
Consumer loans | 60 days past due      
Loans      
Total loans 4,776   7,370
Other loans      
Loans      
Total loans 1,491   7,697
Commercial loans      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 1,026,119   3,204,603
Amortized Cost Basis by Origination Year - 2023/2022 3,018,215   6,073,713
Amortized Cost Basis by Origination Year - 2022/2021 6,091,413   4,371,935
Amortized Cost Basis by Origination Year - 2021/2020 4,252,382   1,858,439
Amortized Cost Basis by Origination Year - 2020/2019 1,793,065   1,717,565
Amortized Cost Basis by Origination Year - Prior 4,880,293   3,428,397
Amortized Cost Basis by Origination Year - Revolving 1,511,207   1,736,510
Total loans 22,572,694   22,391,162
Current-period gross charge-offs - 2024/2023     7,272
Current-period gross charge-offs - 2023/2022 515   3,297
Current-period gross charge-offs - 2022/2021 966   13,220
Current-period gross charge-offs - 2021/2020 126   633
Current-period gross charge-offs - 2020/2019 7   765
Current-period gross charge-offs - Prior 2,652   1,892
Current-period gross charge-offs - Revolving 420   1,144
Current-period gross charge-offs - Total 4,686   28,223
Commercial loans | Pass      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 993,138   3,069,006
Amortized Cost Basis by Origination Year - 2023/2022 2,861,924   5,828,607
Amortized Cost Basis by Origination Year - 2022/2021 5,731,764   4,239,975
Amortized Cost Basis by Origination Year - 2021/2020 4,057,219   1,750,366
Amortized Cost Basis by Origination Year - 2020/2019 1,671,351   1,584,255
Amortized Cost Basis by Origination Year - Prior 4,588,445   3,250,640
Amortized Cost Basis by Origination Year - Revolving 1,392,314   1,621,501
Total loans 21,296,155   21,344,350
Commercial loans | Special mention      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 2,244   10,183
Amortized Cost Basis by Origination Year - 2023/2022 24,801   114,357
Amortized Cost Basis by Origination Year - 2022/2021 183,493   42,567
Amortized Cost Basis by Origination Year - 2021/2020 89,456   14,351
Amortized Cost Basis by Origination Year - 2020/2019 14,565   22,077
Amortized Cost Basis by Origination Year - Prior 48,077   39,179
Amortized Cost Basis by Origination Year - Revolving 24,276   19,286
Total loans 386,912   262,000
Commercial loans | Substandard      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 30,737   125,409
Amortized Cost Basis by Origination Year - 2023/2022 131,485   130,738
Amortized Cost Basis by Origination Year - 2022/2021 176,137   89,324
Amortized Cost Basis by Origination Year - 2021/2020 105,641   93,717
Amortized Cost Basis by Origination Year - 2020/2019 107,146   111,233
Amortized Cost Basis by Origination Year - Prior 241,047   138,555
Amortized Cost Basis by Origination Year - Revolving 94,611   95,719
Total loans 886,804   784,695
Commercial loans | Doubtful      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023     5
Amortized Cost Basis by Origination Year - 2023/2022 5   11
Amortized Cost Basis by Origination Year - 2022/2021 19   69
Amortized Cost Basis by Origination Year - 2021/2020 66   5
Amortized Cost Basis by Origination Year - 2020/2019 3    
Amortized Cost Basis by Origination Year - Prior 2,724   23
Amortized Cost Basis by Origination Year - Revolving 6   4
Total loans 2,823   117
Commercial loans | Construction and land development      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 35,811   482,933
Amortized Cost Basis by Origination Year - 2023/2022 475,696   1,118,792
Amortized Cost Basis by Origination Year - 2022/2021 1,023,156   507,120
Amortized Cost Basis by Origination Year - 2021/2020 197,392   19,629
Amortized Cost Basis by Origination Year - 2020/2019 10,817   9,870
Amortized Cost Basis by Origination Year - Prior 20,136   20,430
Amortized Cost Basis by Origination Year - Revolving 50,450   49,191
Total loans 1,813,458   2,207,965
Current-period gross charge-offs - 2021/2020     204
Current-period gross charge-offs - Prior 1,475   2
Current-period gross charge-offs - Total 1,475   206
Commercial loans | Construction and land development | Pass      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 35,066   480,860
Amortized Cost Basis by Origination Year - 2023/2022 473,874   1,036,691
Amortized Cost Basis by Origination Year - 2022/2021 1,000,523   503,433
Amortized Cost Basis by Origination Year - 2021/2020 180,743   19,626
Amortized Cost Basis by Origination Year - 2020/2019 10,816   5,585
Amortized Cost Basis by Origination Year - Prior 19,062   19,200
Amortized Cost Basis by Origination Year - Revolving 50,450   49,191
Total loans 1,770,534   2,114,586
Commercial loans | Construction and land development | Special mention      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 745   1,683
Amortized Cost Basis by Origination Year - 2023/2022 1,682   35,790
Amortized Cost Basis by Origination Year - 2022/2021 9,808   2,922
Amortized Cost Basis by Origination Year - 2021/2020 16,397    
Amortized Cost Basis by Origination Year - Prior 444   458
Total loans 29,076   40,853
Commercial loans | Construction and land development | Substandard      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023     390
Amortized Cost Basis by Origination Year - 2023/2022 140   46,311
Amortized Cost Basis by Origination Year - 2022/2021 12,825   765
Amortized Cost Basis by Origination Year - 2021/2020 252    
Amortized Cost Basis by Origination Year - 2020/2019     4,285
Amortized Cost Basis by Origination Year - Prior 625   767
Total loans 13,842   52,518
Commercial loans | Construction and land development | Doubtful      
Loans      
Amortized Cost Basis by Origination Year - 2021/2020     3
Amortized Cost Basis by Origination Year - 2020/2019 1    
Amortized Cost Basis by Origination Year - Prior 5   5
Total loans 6   8
Commercial loans | Commercial non-owner occupied      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 117,559   836,159
Amortized Cost Basis by Origination Year - 2023/2022 954,945   2,552,393
Amortized Cost Basis by Origination Year - 2022/2021 2,725,246   1,934,481
Amortized Cost Basis by Origination Year - 2021/2020 2,194,015   746,407
Amortized Cost Basis by Origination Year - 2020/2019 726,266   795,642
Amortized Cost Basis by Origination Year - Prior 2,306,260   1,601,612
Amortized Cost Basis by Origination Year - Revolving 88,183   104,940
Total loans 9,112,474   8,571,634
Current-period gross charge-offs - 2022/2021     51
Current-period gross charge-offs - Prior 71   253
Current-period gross charge-offs - Total 71   304
Commercial loans | Commercial non-owner occupied | Pass      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 107,887   759,501
Amortized Cost Basis by Origination Year - 2023/2022 868,623   2,501,611
Amortized Cost Basis by Origination Year - 2022/2021 2,517,853   1,878,889
Amortized Cost Basis by Origination Year - 2021/2020 2,096,226   674,470
Amortized Cost Basis by Origination Year - 2020/2019 638,979   706,794
Amortized Cost Basis by Origination Year - Prior 2,146,534   1,535,248
Amortized Cost Basis by Origination Year - Revolving 88,091   104,698
Total loans 8,464,193   8,161,211
Commercial loans | Commercial non-owner occupied | Special mention      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 251   3,376
Amortized Cost Basis by Origination Year - 2023/2022 18,178   38,854
Amortized Cost Basis by Origination Year - 2022/2021 113,268   19,899
Amortized Cost Basis by Origination Year - 2021/2020 51,150   10,044
Amortized Cost Basis by Origination Year - 2020/2019 11,975   9,872
Amortized Cost Basis by Origination Year - Prior 24,327   12,976
Amortized Cost Basis by Origination Year - Revolving 92   93
Total loans 219,241   95,114
Commercial loans | Commercial non-owner occupied | Substandard      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 9,421   73,282
Amortized Cost Basis by Origination Year - 2023/2022 68,144   11,928
Amortized Cost Basis by Origination Year - 2022/2021 94,125   35,692
Amortized Cost Basis by Origination Year - 2021/2020 46,638   61,893
Amortized Cost Basis by Origination Year - 2020/2019 75,312   78,976
Amortized Cost Basis by Origination Year - Prior 132,713   53,388
Amortized Cost Basis by Origination Year - Revolving     149
Total loans 426,353   315,308
Commercial loans | Commercial non-owner occupied | Doubtful      
Loans      
Amortized Cost Basis by Origination Year - 2022/2021     1
Amortized Cost Basis by Origination Year - 2021/2020 1    
Amortized Cost Basis by Origination Year - Prior 2,686    
Total loans 2,687   1
Commercial loans | Commercial owner occupied real estate loan      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 116,374   582,411
Amortized Cost Basis by Origination Year - 2023/2022 597,013   1,084,642
Amortized Cost Basis by Origination Year - 2022/2021 1,102,054   1,131,563
Amortized Cost Basis by Origination Year - 2021/2020 1,114,825   663,438
Amortized Cost Basis by Origination Year - 2020/2019 653,845   676,168
Amortized Cost Basis by Origination Year - Prior 1,832,429   1,262,571
Amortized Cost Basis by Origination Year - Revolving 95,315   96,878
Total loans 5,511,855   5,497,671
Current-period gross charge-offs - 2023/2022     126
Current-period gross charge-offs - Total     126
Commercial loans | Commercial owner occupied real estate loan | Pass      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 109,773   556,192
Amortized Cost Basis by Origination Year - 2023/2022 567,722   1,015,236
Amortized Cost Basis by Origination Year - 2022/2021 1,014,720   1,088,976
Amortized Cost Basis by Origination Year - 2021/2020 1,064,707   635,694
Amortized Cost Basis by Origination Year - 2020/2019 625,627   648,082
Amortized Cost Basis by Origination Year - Prior 1,736,191   1,176,796
Amortized Cost Basis by Origination Year - Revolving 80,895   88,298
Total loans 5,199,635   5,209,274
Commercial loans | Commercial owner occupied real estate loan | Special mention      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 546   1,976
Amortized Cost Basis by Origination Year - 2023/2022 1,916   31,484
Amortized Cost Basis by Origination Year - 2022/2021 50,708   15,777
Amortized Cost Basis by Origination Year - 2021/2020 18,272   1,435
Amortized Cost Basis by Origination Year - 2020/2019 1,124   7,776
Amortized Cost Basis by Origination Year - Prior 16,233   22,551
Amortized Cost Basis by Origination Year - Revolving 6,530   690
Total loans 95,329   81,689
Commercial loans | Commercial owner occupied real estate loan | Substandard      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 6,055   24,240
Amortized Cost Basis by Origination Year - 2023/2022 27,372   37,922
Amortized Cost Basis by Origination Year - 2022/2021 36,626   26,810
Amortized Cost Basis by Origination Year - 2021/2020 31,846   26,308
Amortized Cost Basis by Origination Year - 2020/2019 27,093   20,310
Amortized Cost Basis by Origination Year - Prior 80,001   63,220
Amortized Cost Basis by Origination Year - Revolving 7,890   7,890
Total loans 216,883   206,700
Commercial loans | Commercial owner occupied real estate loan | Doubtful      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023     3
Amortized Cost Basis by Origination Year - 2023/2022 3    
Amortized Cost Basis by Origination Year - 2021/2020     1
Amortized Cost Basis by Origination Year - 2020/2019 1    
Amortized Cost Basis by Origination Year - Prior 4   4
Total loans 8   8
Commercial loans | Commercial and industrial      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 739,262   1,217,013
Amortized Cost Basis by Origination Year - 2023/2022 914,967   1,177,852
Amortized Cost Basis by Origination Year - 2022/2021 1,106,998   696,283
Amortized Cost Basis by Origination Year - 2021/2020 646,458   374,432
Amortized Cost Basis by Origination Year - 2020/2019 350,576   191,861
Amortized Cost Basis by Origination Year - Prior 578,538   429,408
Amortized Cost Basis by Origination Year - Revolving 1,207,332   1,417,690
Total loans 5,544,131   5,504,539
Current-period gross charge-offs - 2024/2023     7,272
Current-period gross charge-offs - 2023/2022 515   3,171
Current-period gross charge-offs - 2022/2021 966   13,169
Current-period gross charge-offs - 2021/2020 126   429
Current-period gross charge-offs - 2020/2019 7   765
Current-period gross charge-offs - Prior 1,106   1,637
Current-period gross charge-offs - Revolving 420   1,144
Current-period gross charge-offs - Total 3,140   27,587
Commercial loans | Commercial and industrial | Pass      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 724,949   1,187,836
Amortized Cost Basis by Origination Year - 2023/2022 877,565   1,140,702
Amortized Cost Basis by Origination Year - 2022/2021 1,069,116   669,188
Amortized Cost Basis by Origination Year - 2021/2020 618,382   367,668
Amortized Cost Basis by Origination Year - 2020/2019 345,615   182,519
Amortized Cost Basis by Origination Year - Prior 553,640   413,271
Amortized Cost Basis by Origination Year - Revolving 1,104,937   1,313,978
Total loans 5,294,204   5,275,162
Commercial loans | Commercial and industrial | Special mention      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 590   2,395
Amortized Cost Basis by Origination Year - 2023/2022 2,281   7,624
Amortized Cost Basis by Origination Year - 2022/2021 9,120   3,604
Amortized Cost Basis by Origination Year - 2021/2020 3,476   2,762
Amortized Cost Basis by Origination Year - 2020/2019 626   3,870
Amortized Cost Basis by Origination Year - Prior 4,397   898
Amortized Cost Basis by Origination Year - Revolving 17,388   18,300
Total loans 37,878   39,453
Commercial loans | Commercial and industrial | Substandard      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 13,723   26,780
Amortized Cost Basis by Origination Year - 2023/2022 35,119   29,515
Amortized Cost Basis by Origination Year - 2022/2021 28,743   23,423
Amortized Cost Basis by Origination Year - 2021/2020 24,535   4,001
Amortized Cost Basis by Origination Year - 2020/2019 4,334   5,472
Amortized Cost Basis by Origination Year - Prior 20,473   15,226
Amortized Cost Basis by Origination Year - Revolving 85,001   85,409
Total loans 211,928   189,826
Commercial loans | Commercial and industrial | Doubtful      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023     2
Amortized Cost Basis by Origination Year - 2023/2022 2   11
Amortized Cost Basis by Origination Year - 2022/2021 19   68
Amortized Cost Basis by Origination Year - 2021/2020 65   1
Amortized Cost Basis by Origination Year - 2020/2019 1    
Amortized Cost Basis by Origination Year - Prior 28   13
Amortized Cost Basis by Origination Year - Revolving 6   3
Total loans 121   98
Commercial loans | Other income producing property      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 13,404   59,222
Amortized Cost Basis by Origination Year - 2023/2022 57,103   135,186
Amortized Cost Basis by Origination Year - 2022/2021 129,357   99,724
Amortized Cost Basis by Origination Year - 2021/2020 95,894   52,272
Amortized Cost Basis by Origination Year - 2020/2019 50,984   41,906
Amortized Cost Basis by Origination Year - Prior 140,670   113,878
Amortized Cost Basis by Origination Year - Revolving 42,860   42,025
Total loans 530,272   544,213
Commercial loans | Other income producing property | Pass      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 12,698   58,012
Amortized Cost Basis by Origination Year - 2023/2022 55,905   129,858
Amortized Cost Basis by Origination Year - 2022/2021 125,282   96,743
Amortized Cost Basis by Origination Year - 2021/2020 93,363   51,615
Amortized Cost Basis by Origination Year - 2020/2019 49,758   40,988
Amortized Cost Basis by Origination Year - Prior 132,751   105,810
Amortized Cost Basis by Origination Year - Revolving 41,024   39,701
Total loans 510,781   522,727
Commercial loans | Other income producing property | Special mention      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 91   517
Amortized Cost Basis by Origination Year - 2023/2022 512   266
Amortized Cost Basis by Origination Year - 2022/2021 257   347
Amortized Cost Basis by Origination Year - 2021/2020 161   69
Amortized Cost Basis by Origination Year - 2020/2019 825   288
Amortized Cost Basis by Origination Year - Prior 2,408   2,296
Amortized Cost Basis by Origination Year - Revolving 266   203
Total loans 4,520   3,986
Commercial loans | Other income producing property | Substandard      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 615   693
Amortized Cost Basis by Origination Year - 2023/2022 686   5,062
Amortized Cost Basis by Origination Year - 2022/2021 3,818   2,634
Amortized Cost Basis by Origination Year - 2021/2020 2,370   588
Amortized Cost Basis by Origination Year - 2020/2019 401   630
Amortized Cost Basis by Origination Year - Prior 5,511   5,772
Amortized Cost Basis by Origination Year - Revolving 1,570   2,121
Total loans 14,971   17,500
Commercial loans | Consumer Owner Occupied Loans      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 2,218   19,168
Amortized Cost Basis by Origination Year - 2023/2022 18,491   4,848
Amortized Cost Basis by Origination Year - 2022/2021 4,602   2,764
Amortized Cost Basis by Origination Year - 2021/2020 3,798   2,261
Amortized Cost Basis by Origination Year - 2020/2019 577   2,118
Amortized Cost Basis by Origination Year - Prior 2,260   498
Amortized Cost Basis by Origination Year - Revolving 27,067   25,786
Total loans 59,013   57,443
Commercial loans | Consumer Owner Occupied Loans | Pass      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 1,274   18,908
Amortized Cost Basis by Origination Year - 2023/2022 18,235   4,509
Amortized Cost Basis by Origination Year - 2022/2021 4,270   2,746
Amortized Cost Basis by Origination Year - 2021/2020 3,798   1,293
Amortized Cost Basis by Origination Year - 2020/2019 556   287
Amortized Cost Basis by Origination Year - Prior 267   315
Amortized Cost Basis by Origination Year - Revolving 26,917   25,635
Total loans 55,317   53,693
Commercial loans | Consumer Owner Occupied Loans | Special mention      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 21   236
Amortized Cost Basis by Origination Year - 2023/2022 232   339
Amortized Cost Basis by Origination Year - 2022/2021 332   18
Amortized Cost Basis by Origination Year - 2021/2020     41
Amortized Cost Basis by Origination Year - 2020/2019 15   271
Amortized Cost Basis by Origination Year - Prior 268    
Total loans 868   905
Commercial loans | Consumer Owner Occupied Loans | Substandard      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 923   24
Amortized Cost Basis by Origination Year - 2023/2022 24    
Amortized Cost Basis by Origination Year - 2021/2020     927
Amortized Cost Basis by Origination Year - 2020/2019 6   1,560
Amortized Cost Basis by Origination Year - Prior 1,724   182
Amortized Cost Basis by Origination Year - Revolving 150   150
Total loans 2,827   2,843
Commercial loans | Consumer Owner Occupied Loans | Doubtful      
Loans      
Amortized Cost Basis by Origination Year - Prior 1   1
Amortized Cost Basis by Origination Year - Revolving     1
Total loans 1   2
Commercial loans | Other loans      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 1,491   7,697
Total loans 1,491   7,697
Commercial loans | Other loans | Pass      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 1,491   7,697
Total loans 1,491   7,697
Consumer portfolio loans      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 237,441   1,472,073
Amortized Cost Basis by Origination Year - 2023/2022 1,470,090   2,911,733
Amortized Cost Basis by Origination Year - 2022/2021 2,900,702   1,919,400
Amortized Cost Basis by Origination Year - 2021/2020 1,868,475   733,165
Amortized Cost Basis by Origination Year - 2020/2019 709,398   361,982
Amortized Cost Basis by Origination Year - Prior 1,333,983   1,030,716
Amortized Cost Basis by Origination Year - Revolving 1,574,527   1,568,258
Total loans 10,094,616   9,997,327
Current-period gross charge-offs - 2024/2023     441
Current-period gross charge-offs - 2023/2022 387   1,676
Current-period gross charge-offs - 2022/2021 1,033   598
Current-period gross charge-offs - 2021/2020 86   344
Current-period gross charge-offs - 2020/2019 22   217
Current-period gross charge-offs - Prior 361   587
Current-period gross charge-offs - Revolving 1,365   8,562
Current-period gross charge-offs - Total 3,254   12,425
Consumer portfolio loans | Current due      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 237,435   1,468,427
Amortized Cost Basis by Origination Year - 2023/2022 1,465,947   2,905,191
Amortized Cost Basis by Origination Year - 2022/2021 2,893,426   1,915,515
Amortized Cost Basis by Origination Year - 2021/2020 1,864,896   729,369
Amortized Cost Basis by Origination Year - 2020/2019 706,523   360,664
Amortized Cost Basis by Origination Year - Prior 1,321,608   1,015,838
Amortized Cost Basis by Origination Year - Revolving 1,557,955   1,541,717
Total loans 10,047,790   9,936,721
Consumer portfolio loans | 30 days past due      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 6   2,092
Amortized Cost Basis by Origination Year - 2023/2022 2,141   2,589
Amortized Cost Basis by Origination Year - 2022/2021 3,528   1,903
Amortized Cost Basis by Origination Year - 2021/2020 1,821   928
Amortized Cost Basis by Origination Year - 2020/2019 559   888
Amortized Cost Basis by Origination Year - Prior 6,056   6,002
Amortized Cost Basis by Origination Year - Revolving 8,232   16,617
Total loans 22,343   31,019
Consumer portfolio loans | 60 days past due      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023     64
Amortized Cost Basis by Origination Year - 2023/2022 452   1,020
Amortized Cost Basis by Origination Year - 2022/2021 366   692
Amortized Cost Basis by Origination Year - 2021/2020 455   788
Amortized Cost Basis by Origination Year - 2020/2019 232   4
Amortized Cost Basis by Origination Year - Prior 1,143   2,244
Amortized Cost Basis by Origination Year - Revolving 5,620   7,688
Total loans 8,268   12,500
Consumer portfolio loans | 90 days past due      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023     1,490
Amortized Cost Basis by Origination Year - 2023/2022 1,550   2,933
Amortized Cost Basis by Origination Year - 2022/2021 3,382   1,290
Amortized Cost Basis by Origination Year - 2021/2020 1,303   2,080
Amortized Cost Basis by Origination Year - 2020/2019 2,084   426
Amortized Cost Basis by Origination Year - Prior 5,176   6,632
Amortized Cost Basis by Origination Year - Revolving 2,720   2,236
Total loans 16,215   17,087
Consumer portfolio loans | Construction and land development      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 8,360   135,739
Amortized Cost Basis by Origination Year - 2023/2022 150,103   425,276
Amortized Cost Basis by Origination Year - 2022/2021 338,881   111,205
Amortized Cost Basis by Origination Year - 2021/2020 89,736   20,434
Amortized Cost Basis by Origination Year - 2020/2019 16,413   8,555
Amortized Cost Basis by Origination Year - Prior 20,392   14,340
Total loans 623,885   715,549
Current-period gross charge-offs - 2022/2021 304    
Current-period gross charge-offs - Prior     19
Current-period gross charge-offs - Total 304   19
Consumer portfolio loans | Construction and land development | Current due      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 8,360   135,739
Amortized Cost Basis by Origination Year - 2023/2022 150,103   425,276
Amortized Cost Basis by Origination Year - 2022/2021 338,834   111,205
Amortized Cost Basis by Origination Year - 2021/2020 89,736   20,322
Amortized Cost Basis by Origination Year - 2020/2019 16,412   8,555
Amortized Cost Basis by Origination Year - Prior 20,306   14,265
Total loans 623,751   715,362
Consumer portfolio loans | Construction and land development | 30 days past due      
Loans      
Amortized Cost Basis by Origination Year - 2021/2020     111
Total loans     111
Consumer portfolio loans | Construction and land development | 60 days past due      
Loans      
Amortized Cost Basis by Origination Year - 2022/2021 47    
Amortized Cost Basis by Origination Year - Prior 63    
Total loans 110    
Consumer portfolio loans | Construction and land development | 90 days past due      
Loans      
Amortized Cost Basis by Origination Year - 2021/2020     1
Amortized Cost Basis by Origination Year - 2020/2019 1    
Amortized Cost Basis by Origination Year - Prior 23   75
Total loans 24   76
Consumer portfolio loans | Other income producing property      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 1,119   6,310
Amortized Cost Basis by Origination Year - 2023/2022 6,292   43,022
Amortized Cost Basis by Origination Year - 2022/2021 42,762   18,536
Amortized Cost Basis by Origination Year - 2021/2020 17,490   4,331
Amortized Cost Basis by Origination Year - 2020/2019 4,119   2,537
Amortized Cost Basis by Origination Year - Prior 37,804   37,105
Amortized Cost Basis by Origination Year - Revolving 197   280
Total loans 109,783   112,121
Consumer portfolio loans | Other income producing property | Current due      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 1,119   6,310
Amortized Cost Basis by Origination Year - 2023/2022 6,292   43,022
Amortized Cost Basis by Origination Year - 2022/2021 42,762   18,536
Amortized Cost Basis by Origination Year - 2021/2020 17,490   4,331
Amortized Cost Basis by Origination Year - 2020/2019 4,119   2,537
Amortized Cost Basis by Origination Year - Prior 37,399   36,911
Amortized Cost Basis by Origination Year - Revolving 197   280
Total loans 109,378   111,927
Consumer portfolio loans | Other income producing property | 30 days past due      
Loans      
Amortized Cost Basis by Origination Year - Prior 271   67
Total loans 271   67
Consumer portfolio loans | Other income producing property | 60 days past due      
Loans      
Amortized Cost Basis by Origination Year - Prior 13    
Total loans 13    
Consumer portfolio loans | Other income producing property | 90 days past due      
Loans      
Amortized Cost Basis by Origination Year - Prior 121   127
Total loans 121   127
Consumer portfolio loans | Consumer Owner Occupied Loans      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 179,144   1,022,825
Amortized Cost Basis by Origination Year - 2023/2022 1,028,693   2,130,728
Amortized Cost Basis by Origination Year - 2022/2021 2,232,913   1,644,659
Amortized Cost Basis by Origination Year - 2021/2020 1,629,466   631,130
Amortized Cost Basis by Origination Year - 2020/2019 618,499   289,326
Amortized Cost Basis by Origination Year - Prior 1,066,744   818,894
Total loans 6,755,459   6,537,562
Current-period gross charge-offs - 2024/2023     68
Current-period gross charge-offs - 2023/2022 108   90
Current-period gross charge-offs - 2022/2021 182   27
Current-period gross charge-offs - 2020/2019 12    
Current-period gross charge-offs - Prior 41   2
Current-period gross charge-offs - Total 343   187
Consumer portfolio loans | Consumer Owner Occupied Loans | Current due      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 179,144   1,019,956
Amortized Cost Basis by Origination Year - 2023/2022 1,025,871   2,125,156
Amortized Cost Basis by Origination Year - 2022/2021 2,226,767   1,641,518
Amortized Cost Basis by Origination Year - 2021/2020 1,626,546   628,107
Amortized Cost Basis by Origination Year - 2020/2019 616,378   288,304
Amortized Cost Basis by Origination Year - Prior 1,059,905   809,419
Total loans 6,734,611   6,512,460
Consumer portfolio loans | Consumer Owner Occupied Loans | 30 days past due      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023     1,589
Amortized Cost Basis by Origination Year - 2023/2022 1,471   2,268
Amortized Cost Basis by Origination Year - 2022/2021 3,070   1,524
Amortized Cost Basis by Origination Year - 2021/2020 1,617   654
Amortized Cost Basis by Origination Year - 2020/2019 402   707
Amortized Cost Basis by Origination Year - Prior 3,234   4,012
Total loans 9,794   10,754
Consumer portfolio loans | Consumer Owner Occupied Loans | 60 days past due      
Loans      
Amortized Cost Basis by Origination Year - 2023/2022 195   766
Amortized Cost Basis by Origination Year - 2022/2021 160   528
Amortized Cost Basis by Origination Year - 2021/2020 328   680
Amortized Cost Basis by Origination Year - 2020/2019 224    
Amortized Cost Basis by Origination Year - Prior 339   813
Total loans 1,246   2,787
Consumer portfolio loans | Consumer Owner Occupied Loans | 90 days past due      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023     1,280
Amortized Cost Basis by Origination Year - 2023/2022 1,156   2,538
Amortized Cost Basis by Origination Year - 2022/2021 2,916   1,089
Amortized Cost Basis by Origination Year - 2021/2020 975   1,689
Amortized Cost Basis by Origination Year - 2020/2019 1,495   315
Amortized Cost Basis by Origination Year - Prior 3,266   4,650
Total loans 9,808   11,561
Consumer portfolio loans | Home equity loans      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 2,263   6,728
Amortized Cost Basis by Origination Year - 2023/2022 6,319   6,454
Amortized Cost Basis by Origination Year - 2022/2021 5,766   3,058
Amortized Cost Basis by Origination Year - 2021/2020 3,114   1,715
Amortized Cost Basis by Origination Year - 2020/2019 1,847   1,048
Amortized Cost Basis by Origination Year - Prior 14,561   13,187
Amortized Cost Basis by Origination Year - Revolving 1,374,724   1,366,255
Total loans 1,408,594   1,398,445
Current-period gross charge-offs - 2021/2020     64
Current-period gross charge-offs - Prior 110   29
Current-period gross charge-offs - Revolving     84
Current-period gross charge-offs - Total 110   177
Consumer portfolio loans | Home equity loans | Current due      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 2,263   6,551
Amortized Cost Basis by Origination Year - 2023/2022 6,032   6,454
Amortized Cost Basis by Origination Year - 2022/2021 5,453   2,887
Amortized Cost Basis by Origination Year - 2021/2020 2,604   1,396
Amortized Cost Basis by Origination Year - 2020/2019 1,420   1,003
Amortized Cost Basis by Origination Year - Prior 12,653   11,518
Amortized Cost Basis by Origination Year - Revolving 1,371,195   1,358,829
Total loans 1,401,620   1,388,638
Consumer portfolio loans | Home equity loans | 30 days past due      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023     60
Amortized Cost Basis by Origination Year - 2023/2022 147    
Amortized Cost Basis by Origination Year - 2022/2021 11   132
Amortized Cost Basis by Origination Year - 2021/2020 174   21
Amortized Cost Basis by Origination Year - 2020/2019     44
Amortized Cost Basis by Origination Year - Prior 983   539
Amortized Cost Basis by Origination Year - Revolving 1,481   5,860
Total loans 2,796   6,656
Consumer portfolio loans | Home equity loans | 60 days past due      
Loans      
Amortized Cost Basis by Origination Year - 2023/2022 69    
Amortized Cost Basis by Origination Year - 2022/2021     12
Amortized Cost Basis by Origination Year - 2021/2020 53   104
Amortized Cost Basis by Origination Year - Prior 216   458
Amortized Cost Basis by Origination Year - Revolving 1,482   1,268
Total loans 1,820   1,842
Consumer portfolio loans | Home equity loans | 90 days past due      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023     117
Amortized Cost Basis by Origination Year - 2023/2022 71    
Amortized Cost Basis by Origination Year - 2022/2021 302   27
Amortized Cost Basis by Origination Year - 2021/2020 283   194
Amortized Cost Basis by Origination Year - 2020/2019 427   1
Amortized Cost Basis by Origination Year - Prior 709   672
Amortized Cost Basis by Origination Year - Revolving 566   298
Total loans 2,358   1,309
Consumer portfolio loans | Consumer loans      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 46,555   300,471
Amortized Cost Basis by Origination Year - 2023/2022 278,683   306,253
Amortized Cost Basis by Origination Year - 2022/2021 280,380   141,942
Amortized Cost Basis by Origination Year - 2021/2020 128,669   75,555
Amortized Cost Basis by Origination Year - 2020/2019 68,520   60,516
Amortized Cost Basis by Origination Year - Prior 194,482   147,190
Amortized Cost Basis by Origination Year - Revolving 199,606   201,723
Total loans 1,196,895   1,233,650
Current-period gross charge-offs - 2024/2023     373
Current-period gross charge-offs - 2023/2022 279   1,586
Current-period gross charge-offs - 2022/2021 547   571
Current-period gross charge-offs - 2021/2020 86   280
Current-period gross charge-offs - 2020/2019 10   217
Current-period gross charge-offs - Prior 210   537
Current-period gross charge-offs - Revolving 1,365   8,478
Current-period gross charge-offs - Total 2,497   12,042
Consumer portfolio loans | Consumer loans | Current due      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 46,549   299,871
Amortized Cost Basis by Origination Year - 2023/2022 277,649   305,283
Amortized Cost Basis by Origination Year - 2022/2021 279,610   141,369
Amortized Cost Basis by Origination Year - 2021/2020 128,520   75,213
Amortized Cost Basis by Origination Year - 2020/2019 68,194   60,265
Amortized Cost Basis by Origination Year - Prior 191,345   143,725
Amortized Cost Basis by Origination Year - Revolving 186,563   182,608
Total loans 1,178,430   1,208,334
Consumer portfolio loans | Consumer loans | 30 days past due      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023 6   443
Amortized Cost Basis by Origination Year - 2023/2022 523   321
Amortized Cost Basis by Origination Year - 2022/2021 447   247
Amortized Cost Basis by Origination Year - 2021/2020 30   142
Amortized Cost Basis by Origination Year - 2020/2019 157   137
Amortized Cost Basis by Origination Year - Prior 1,568   1,384
Amortized Cost Basis by Origination Year - Revolving 6,751   10,757
Total loans 9,482   13,431
Consumer portfolio loans | Consumer loans | 60 days past due      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023     64
Amortized Cost Basis by Origination Year - 2023/2022 188   254
Amortized Cost Basis by Origination Year - 2022/2021 159   152
Amortized Cost Basis by Origination Year - 2021/2020 74   4
Amortized Cost Basis by Origination Year - 2020/2019 8   4
Amortized Cost Basis by Origination Year - Prior 512   973
Amortized Cost Basis by Origination Year - Revolving 4,138   6,420
Total loans 5,079   7,871
Consumer portfolio loans | Consumer loans | 90 days past due      
Loans      
Amortized Cost Basis by Origination Year - 2024/2023     93
Amortized Cost Basis by Origination Year - 2023/2022 323   395
Amortized Cost Basis by Origination Year - 2022/2021 164   174
Amortized Cost Basis by Origination Year - 2021/2020 45   196
Amortized Cost Basis by Origination Year - 2020/2019 161   110
Amortized Cost Basis by Origination Year - Prior 1,057   1,108
Amortized Cost Basis by Origination Year - Revolving 2,154   1,938
Total loans $ 3,904   $ 4,014