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Loans - Components of Loans (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023 | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | --- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total Loans | $ 3,978,919 | $ 3,977,900 |  |
Less: Unearned Income | (7,009) | (6,818) |  |
Allowance for Credit Losses | (43,754) | (43,765) | $ (44,315) | $ (44,168)
Loans, Net | 3,928,156 | 3,927,317 |  |
Commercial and Industrial Loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total Loans | 572,666 | 589,541 |  |
Allowance for Credit Losses | (7,266) | (7,921) | (13,572) | (13,749)
Commercial Real Estate Loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total Loans | 2,148,808 | 2,121,835 |  |
Allowance for Credit Losses | (26,452) | (25,923) | (22,062) | (21,598)
Agricultural Loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total Loans | 400,733 | 423,803 |  |
Allowance for Credit Losses | (3,650) | (3,837) | (3,887) | (4,188)
Leases |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total Loans | 73,496 | 71,988 |  |
Allowance for Credit Losses | (373) | (346) | (227) | (209)
Home Equity Loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total Loans | 312,859 | 299,685 |  |
Allowance for Credit Losses | (2,001) | (1,834) | (1,415) | (1,344)
Consumer Loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total Loans | 88,008 | 87,853 |  |
Allowance for Credit Losses | (785) | (759) | (609) | (595)
Credit Cards |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total Loans | 21,113 | 20,351 |  |
Allowance for Credit Losses | (395) | (383) | (263) | (257)
Residential Mortgage Loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total Loans | 361,236 | 362,844 |  |
Allowance for Credit Losses | (2,832) | (2,762) | $ (2,280) | $ (2,228)
Commercial: | Commercial and Industrial Loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total Loans | 572,666 | 589,541 |  |
Commercial: | Commercial Real Estate Loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total Loans | 2,148,808 | 2,121,835 |  |
Commercial: | Agricultural Loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total Loans | 400,733 | 423,803 |  |
Commercial: | Leases |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total Loans | 73,496 | 71,988 |  |
Retail: | Home Equity Loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total Loans | 312,859 | 299,685 |  |
Retail: | Consumer Loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total Loans | 88,008 | 87,853 |  |
Retail: | Credit Cards |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total Loans | 21,113 | 20,351 |  |
Retail: | Residential Mortgage Loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total Loans | $ 361,236 | $ 362,844 |  |

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