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Loans and Allowance for Credit Losses - Summary of Non-Accrual Loans by Loan Class (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Non-Accrual Loans | $ 43,062 | $ 61,471
Non-Accrual Loans with no Allowance for Credit Losses | 9,080 |
Commercial and industrial loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Non-Accrual Loans | 7,598 | 2,329
Non-Accrual Loans with no Allowance for Credit Losses | 263 |
Agricultural land, production and other loans to farmers |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Non-Accrual Loans | 631 | 1,012
Non-Accrual Loans with no Allowance for Credit Losses | 524 |
Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Non-Accrual Loans | 685 | 123
Non-Accrual Loans with no Allowance for Credit Losses | 0 |
Commercial real estate, non-owner occupied |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Non-Accrual Loans | 23,029 | 46,316
Non-Accrual Loans with no Allowance for Credit Losses | 6,133 |
Commercial real estate, owner occupied |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Non-Accrual Loans | 411 | 3,040
Non-Accrual Loans with no Allowance for Credit Losses | 0 |
Residential |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Non-Accrual Loans | 9,153 | 6,517
Non-Accrual Loans with no Allowance for Credit Losses | 2,160 |
Home equity |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Non-Accrual Loans | 1,552 | 2,095
Non-Accrual Loans with no Allowance for Credit Losses | 0 |
Individuals' loans for household and other personal expenditures |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Non-Accrual Loans | 3 | $ 39
Non-Accrual Loans with no Allowance for Credit Losses | $ 0 |

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