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Loans and Allowance for Credit Losses - Amortized Cost Basis Of Collateral Dependent Loans (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | $ 39,531 | $ 56,156
Allowance on Collateral Dependent Loans | [1] | 195,397 | $ 130,648
Commercial and industrial loans |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 8,075 |
Agricultural land, production and other loans to farmers |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 775 |
Construction |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 685 |
Commercial real estate, non-owner occupied |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 23,652 |
Commercial real estate, owner occupied |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 1,044 |
Residential |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 4,906 |
Home equity |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 394 |
Commercial Real Estate |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 25,220 |
Commercial Real Estate | Commercial and industrial loans |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 0 |
Commercial Real Estate | Agricultural land, production and other loans to farmers |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 524 |
Commercial Real Estate | Construction |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 0 |
Commercial Real Estate | Commercial real estate, non-owner occupied |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 23,652 |
Commercial Real Estate | Commercial real estate, owner occupied |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 1,044 |
Commercial Real Estate | Residential |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 0 |
Commercial Real Estate | Home equity |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 0 |
Residential |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 5,985 |
Residential | Commercial and industrial loans |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 0 |
Residential | Agricultural land, production and other loans to farmers |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 0 |
Residential | Construction |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 685 |
Residential | Commercial real estate, non-owner occupied |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 0 |
Residential | Commercial real estate, owner occupied |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 0 |
Residential | Residential |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 4,906 |
Residential | Home equity |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 394 |
Other |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 8,326 |
Other | Commercial and industrial loans |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 8,075 |
Other | Agricultural land, production and other loans to farmers |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 251 |
Other | Construction |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 0 |
Other | Commercial real estate, non-owner occupied |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 0 |
Other | Commercial real estate, owner occupied |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 0 |
Other | Residential |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 0 |
Other | Home equity |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Individually evaluated for impairment |  | 0 |
Allowance on Collateral Dependent Loans |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Allowance on Collateral Dependent Loans |  | 8,633 |
Allowance on Collateral Dependent Loans | Commercial and industrial loans |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Allowance on Collateral Dependent Loans |  | 2,672 |
Allowance on Collateral Dependent Loans | Agricultural land, production and other loans to farmers |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Allowance on Collateral Dependent Loans |  | 0 |
Allowance on Collateral Dependent Loans | Construction |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Allowance on Collateral Dependent Loans |  | 82 |
Allowance on Collateral Dependent Loans | Commercial real estate, non-owner occupied |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Allowance on Collateral Dependent Loans |  | 5,510 |
Allowance on Collateral Dependent Loans | Commercial real estate, owner occupied |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Allowance on Collateral Dependent Loans |  | 0 |
Allowance on Collateral Dependent Loans | Residential |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Allowance on Collateral Dependent Loans |  | 305 |
Allowance on Collateral Dependent Loans | Home equity |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Allowance on Collateral Dependent Loans |  | $ 64 |
[1] | Beginning January 1, 2021, the amount is based on the current expected credit loss methodology. Prior to January 1, 2021, the amount is based on the incurred loss methodology. See additional details in NOTE 1. NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES of these Notes to Consolidated Financial Statements.

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