v3.26.1
Allowance for Credit Losses - Summary of Analysis of Past Due Loans (Detail) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Financing Receivable, Past Due [Line Items]    
Loans $ 7,311,090 $ 7,111,087
Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 5,013,880 4,853,762
Consumer    
Financing Receivable, Past Due [Line Items]    
Loans 1,288,973 1,314,610
Commercial and industrial    
Financing Receivable, Past Due [Line Items]    
Loans 559,886 464,428
Construction    
Financing Receivable, Past Due [Line Items]    
Loans 298,388 301,045
Agriculture production    
Financing Receivable, Past Due [Line Items]    
Loans 146,190 172,494
Leases    
Financing Receivable, Past Due [Line Items]    
Loans 3,773 4,748
CRE non-owner occupied | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 2,575,598 2,495,849
CRE owner occupied | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 1,041,498 1,020,770
Multifamily | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 1,156,848 1,085,698
Farmland | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 239,936 251,445
SFR 1-4 1st DT liens | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans 826,812 842,169
SFR HELOCs and junior liens | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans 429,632 431,772
Other | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans 32,529 40,669
Financial Asset Originated    
Financing Receivable, Past Due [Line Items]    
Loans 7,311,090 7,111,087
Financial Asset Originated | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 5,013,880 4,853,762
Financial Asset Originated | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans 1,288,973 1,314,610
Financial Asset Originated | Commercial and industrial    
Financing Receivable, Past Due [Line Items]    
Loans 559,886 464,428
Financial Asset Originated | Construction    
Financing Receivable, Past Due [Line Items]    
Loans 298,388 301,045
Financial Asset Originated | Agriculture production    
Financing Receivable, Past Due [Line Items]    
Loans 146,190 172,494
Financial Asset Originated | Leases    
Financing Receivable, Past Due [Line Items]    
Loans 3,773 4,748
Financial Asset Originated | CRE non-owner occupied | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 2,575,598 2,495,849
Financial Asset Originated | CRE owner occupied | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 1,041,498 1,020,770
Financial Asset Originated | Multifamily | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 1,156,848 1,085,698
Financial Asset Originated | Farmland | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 239,936 251,445
Financial Asset Originated | SFR 1-4 1st DT liens | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans 826,812 842,169
Financial Asset Originated | SFR HELOCs and junior liens | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans 429,632 431,772
Financial Asset Originated | Other | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans 32,529 40,669
Total Past Due Loans | Financial Asset Originated    
Financing Receivable, Past Due [Line Items]    
Loans 49,611 37,931
Total Past Due Loans | Financial Asset Originated | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 31,075 24,240
Total Past Due Loans | Financial Asset Originated | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans 13,882 8,750
Total Past Due Loans | Financial Asset Originated | Commercial and industrial    
Financing Receivable, Past Due [Line Items]    
Loans 4,398 3,770
Total Past Due Loans | Financial Asset Originated | Construction    
Financing Receivable, Past Due [Line Items]    
Loans 0 603
Total Past Due Loans | Financial Asset Originated | Agriculture production    
Financing Receivable, Past Due [Line Items]    
Loans 0 568
Total Past Due Loans | Financial Asset Originated | Leases    
Financing Receivable, Past Due [Line Items]    
Loans 256 0
Total Past Due Loans | Financial Asset Originated | CRE non-owner occupied | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 3,794 7,019
Total Past Due Loans | Financial Asset Originated | CRE owner occupied | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 6,278 5,450
Total Past Due Loans | Financial Asset Originated | Multifamily | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 14,390 834
Total Past Due Loans | Financial Asset Originated | Farmland | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 6,613 10,937
Total Past Due Loans | Financial Asset Originated | SFR 1-4 1st DT liens | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans 6,866 4,497
Total Past Due Loans | Financial Asset Originated | SFR HELOCs and junior liens | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans 6,371 3,664
Total Past Due Loans | Financial Asset Originated | Other | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans 645 589
30-59 days | Financial Asset Originated    
Financing Receivable, Past Due [Line Items]    
Loans 9,862 8,697
30-59 days | Financial Asset Originated | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 2,333 5,547
30-59 days | Financial Asset Originated | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans 6,626 1,531
30-59 days | Financial Asset Originated | Commercial and industrial    
Financing Receivable, Past Due [Line Items]    
Loans 903 1,619
30-59 days | Financial Asset Originated | Construction    
Financing Receivable, Past Due [Line Items]    
Loans 0 0
30-59 days | Financial Asset Originated | Agriculture production    
Financing Receivable, Past Due [Line Items]    
Loans 0 0
30-59 days | Financial Asset Originated | Leases    
Financing Receivable, Past Due [Line Items]    
Loans 0 0
30-59 days | Financial Asset Originated | CRE non-owner occupied | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 740 1,599
30-59 days | Financial Asset Originated | CRE owner occupied | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 736 3,261
30-59 days | Financial Asset Originated | Multifamily | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 396 687
30-59 days | Financial Asset Originated | Farmland | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 461 0
30-59 days | Financial Asset Originated | SFR 1-4 1st DT liens | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans 2,054 832
30-59 days | Financial Asset Originated | SFR HELOCs and junior liens | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans 4,139 516
30-59 days | Financial Asset Originated | Other | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans 433 183
60-89 days | Financial Asset Originated    
Financing Receivable, Past Due [Line Items]    
Loans 17,631 5,777
60-89 days | Financial Asset Originated | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 13,999 1,875
60-89 days | Financial Asset Originated | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans 3,054 3,292
60-89 days | Financial Asset Originated | Commercial and industrial    
Financing Receivable, Past Due [Line Items]    
Loans 564 522
60-89 days | Financial Asset Originated | Construction    
Financing Receivable, Past Due [Line Items]    
Loans 0 0
60-89 days | Financial Asset Originated | Agriculture production    
Financing Receivable, Past Due [Line Items]    
Loans 0 88
60-89 days | Financial Asset Originated | Leases    
Financing Receivable, Past Due [Line Items]    
Loans 14 0
60-89 days | Financial Asset Originated | CRE non-owner occupied | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 338 1,728
60-89 days | Financial Asset Originated | CRE owner occupied | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 593 0
60-89 days | Financial Asset Originated | Multifamily | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 13,068 147
60-89 days | Financial Asset Originated | Farmland | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 0 0
60-89 days | Financial Asset Originated | SFR 1-4 1st DT liens | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans 2,454 1,968
60-89 days | Financial Asset Originated | SFR HELOCs and junior liens | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans 594 1,305
60-89 days | Financial Asset Originated | Other | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans 6 19
> 90 days | Financial Asset Originated    
Financing Receivable, Past Due [Line Items]    
Loans 22,118 23,457
> 90 days | Financial Asset Originated | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 14,743 16,818
> 90 days | Financial Asset Originated | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans 4,202 3,927
> 90 days | Financial Asset Originated | Commercial and industrial    
Financing Receivable, Past Due [Line Items]    
Loans 2,931 1,629
> 90 days | Financial Asset Originated | Construction    
Financing Receivable, Past Due [Line Items]    
Loans 0 603
> 90 days | Financial Asset Originated | Agriculture production    
Financing Receivable, Past Due [Line Items]    
Loans 0 480
> 90 days | Financial Asset Originated | Leases    
Financing Receivable, Past Due [Line Items]    
Loans 242 0
> 90 days | Financial Asset Originated | CRE non-owner occupied | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 2,716 3,692
> 90 days | Financial Asset Originated | CRE owner occupied | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 4,949 2,189
> 90 days | Financial Asset Originated | Multifamily | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 926 0
> 90 days | Financial Asset Originated | Farmland | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 6,152 10,937
> 90 days | Financial Asset Originated | SFR 1-4 1st DT liens | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans 2,358 1,697
> 90 days | Financial Asset Originated | SFR HELOCs and junior liens | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans 1,638 1,843
> 90 days | Financial Asset Originated | Other | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans 206 387
Current | Financial Asset Originated    
Financing Receivable, Past Due [Line Items]    
Loans 7,261,479 7,073,156
Current | Financial Asset Originated | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 4,982,805 4,829,522
Current | Financial Asset Originated | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans 1,275,091 1,305,860
Current | Financial Asset Originated | Commercial and industrial    
Financing Receivable, Past Due [Line Items]    
Loans 555,488 460,658
Current | Financial Asset Originated | Construction    
Financing Receivable, Past Due [Line Items]    
Loans 298,388 300,442
Current | Financial Asset Originated | Agriculture production    
Financing Receivable, Past Due [Line Items]    
Loans 146,190 171,926
Current | Financial Asset Originated | Leases    
Financing Receivable, Past Due [Line Items]    
Loans 3,517 4,748
Current | Financial Asset Originated | CRE non-owner occupied | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 2,571,804 2,488,830
Current | Financial Asset Originated | CRE owner occupied | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 1,035,220 1,015,320
Current | Financial Asset Originated | Multifamily | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 1,142,458 1,084,864
Current | Financial Asset Originated | Farmland | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Loans 233,323 240,508
Current | Financial Asset Originated | SFR 1-4 1st DT liens | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans 819,946 837,672
Current | Financial Asset Originated | SFR HELOCs and junior liens | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans 423,261 428,108
Current | Financial Asset Originated | Other | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans $ 31,884 $ 40,080