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Loans and Allowance for Credit Losses - Past Due Aging of Loan Portfolio by Loan Class (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Loans | $ 12,003,894 | $ 9,241,861
Loans > 90 Days or More Past Due And Accruing | 1,737 | 963
Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 11,952,887 | 9,207,113
30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 29,051 | 15,006
60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 5,935 | 7,056
90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 16,021 | 12,686
Commercial and industrial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 3,437,126 | 2,714,565
Loans > 90 Days or More Past Due And Accruing | 1,147 | 675
Commercial and industrial loans | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 3,429,314 | 2,708,539
Commercial and industrial loans | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 4,904 | 2,602
Commercial and industrial loans | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 434 | 2,437
Commercial and industrial loans | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,474 | 987
Agricultural land, production and other loans to farmers |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 241,793 | 246,442
Loans > 90 Days or More Past Due And Accruing | 0 | 0
Agricultural land, production and other loans to farmers | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 241,739 | 246,380
Agricultural land, production and other loans to farmers | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 36
Agricultural land, production and other loans to farmers | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Agricultural land, production and other loans to farmers | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 54 | 26
Construction |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 835,582 | 523,066
Loans > 90 Days or More Past Due And Accruing | 0 | 0
Construction | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 832,716 | 522,349
Construction | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,436 | 717
Construction | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 418 | 0
Construction | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 12 | 0
Commercial real estate, non-owner occupied |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,407,475 | 2,135,459
Loans > 90 Days or More Past Due And Accruing | 264 | 0
Commercial real estate, non-owner occupied | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,395,495 | 2,124,853
Commercial real estate, non-owner occupied | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 5,946 | 3,327
Commercial real estate, non-owner occupied | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 881 | 0
Commercial real estate, non-owner occupied | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 5,153 | 7,279
Commercial real estate, owner occupied |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,246,528 | 986,720
Loans > 90 Days or More Past Due And Accruing | 0 | 0
Commercial real estate, owner occupied | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,241,714 | 985,785
Commercial real estate, owner occupied | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 4,495 | 643
Commercial real estate, owner occupied | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Commercial real estate, owner occupied | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 319 | 292
Residential |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,096,655 | 1,159,127
Loans > 90 Days or More Past Due And Accruing | 0 | 0
Residential | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,079,959 | 1,148,294
Residential | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 8,607 | 3,979
Residential | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,278 | 4,255
Residential | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 5,811 | 2,599
Home equity |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 630,632 | 523,754
Loans > 90 Days or More Past Due And Accruing | 326 | 288
Home equity | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 624,543 | 518,643
Home equity | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,206 | 3,327
Home equity | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,782 | 281
Home equity | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,101 | 1,503
Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 175,211 | 146,092
Loans > 90 Days or More Past Due And Accruing | 0 | 0
Consumer | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 174,629 | 145,634
Consumer | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 343 | 375
Consumer | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 142 | 83
Consumer | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 97 | 0
Public finance and other commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 932,892 | 806,636
Loans > 90 Days or More Past Due And Accruing | 0 | 0
Public finance and other commercial loans | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 932,778 | 806,636
Public finance and other commercial loans | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 114 | 0
Public finance and other commercial loans | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Public finance and other commercial loans | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | $ 0 | $ 0

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