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Loans and Allowance - Amortized Cost Basis of Collateral Dependent Loans (Details) - USD ($) $ in Thousands | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | --- | --- | --- | --- | ---
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated for impairment | $ 88,044 |  | $ 39,531 |  |  |
Allowance on Collateral Dependent Loans | 226,275 | $ 195,984 | 195,397 | $ 199,775 | $ 201,082 | $ 130,648
Level One |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated for impairment | 58,200 |  |  |  |  |
Allowance on Collateral Dependent Loans | 16,900 |  |  |  |  |
Commercial and industrial loans |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated for impairment | 48,525 |  | 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 | 4,056 |  | 685 |  |  |
Commercial real estate, non-owner occupied |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated for impairment | 24,030 |  | 23,652 |  |  |
Commercial real estate, owner occupied |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated for impairment | 8,485 |  | 1,044 |  |  |
Residential |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated for impairment | 2,566 |  | 4,906 |  |  |
Home equity |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated for impairment | 382 |  | 394 |  |  |
Commercial Real Estate |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated for impairment | 32,515 |  | 25,220 |  |  |
Commercial Real Estate | Commercial and industrial loans |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated for impairment | 0 |  | 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 |  | 0 |  |  |
Commercial Real Estate | Commercial real estate, non-owner occupied |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated for impairment | 24,030 |  | 23,652 |  |  |
Commercial Real Estate | Commercial real estate, owner occupied |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated for impairment | 8,485 |  | 1,044 |  |  |
Commercial Real Estate | Residential |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated for impairment | 0 |  | 0 |  |  |
Commercial Real Estate | Home equity |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated for impairment | 0 |  | 0 |  |  |
Residential Real Estate |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated for impairment | 7,004 |  | 5,985 |  |  |
Residential Real Estate | Commercial and industrial loans |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated for impairment | 0 |  | 0 |  |  |
Residential Real Estate | Agricultural land, production and other loans to farmers |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated for impairment |  |  | 0 |  |  |
Residential Real Estate | Construction |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated for impairment | 4,056 |  | 685 |  |  |
Residential Real Estate | Commercial real estate, non-owner occupied |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated for impairment | 0 |  | 0 |  |  |
Residential Real Estate | Commercial real estate, owner occupied |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated for impairment | 0 |  | 0 |  |  |
Residential Real Estate | Residential |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated for impairment | 2,566 |  | 4,906 |  |  |
Residential Real Estate | Home equity |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated for impairment | 382 |  | 394 |  |  |
Other |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated for impairment | 48,525 |  | 8,326 |  |  |
Other | Commercial and industrial loans |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated for impairment | 48,525 |  | 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 |  | 0 |  |  |
Other | Commercial real estate, non-owner occupied |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated for impairment | 0 |  | 0 |  |  |
Other | Commercial real estate, owner occupied |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated for impairment | 0 |  | 0 |  |  |
Other | Residential |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated for impairment | 0 |  | 0 |  |  |
Other | Home equity |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated for impairment | 0 |  | 0 |  |  |
Allowance on Collateral Dependent Loans |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Allowance on Collateral Dependent Loans | 19,863 |  | 8,633 |  |  |
Allowance on Collateral Dependent Loans | Commercial and industrial loans |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Allowance on Collateral Dependent Loans | 15,166 |  | 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 | 649 |  | 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 | 2,692 |  | 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 | 1,027 |  | 0 |  |  |
Allowance on Collateral Dependent Loans | Residential |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Allowance on Collateral Dependent Loans | 268 |  | 305 |  |  |
Allowance on Collateral Dependent Loans | Home equity |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Allowance on Collateral Dependent Loans | $ 61 |  | $ 64 |  |  |

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