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Loans and ACL (Summary of Loan Modification Effects) (Details) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Commercial and Industrial, Secured, Portfolio Segment | Payment Deferral |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Payment Deferral | 4 months |  | 4 months |
Commercial and Industrial, Secured, Portfolio Segment | Extended Maturity |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Financing Receivable Modification Weighted Average Extension Term |  |  | 2 months 12 days |
Commercial Real Estate, Owner Occupied, Portfolio Segment | Payment Deferral |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Payment Deferral |  |  | 7 months |
Commercial Real Estate, Non-owner Occupied | Extended Maturity |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Financing Receivable Modification Weighted Average Extension Term |  | 3 years |  | 3 years
Agricultural Mortgage, Portfolio Segment | Payment Deferral |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Payment Deferral | 5 months |  | 5 months |
Agricultural Mortgage, Portfolio Segment | Extended Maturity |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Financing Receivable Modification Weighted Average Extension Term | 6 months | 1 year 9 months | 6 months | 1 year 29 days
Agricultural Mortgage, Portfolio Segment | Interest Rate Below Market Reduction [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Financing Receivable, Modified, Weighted Average Interest Rate Decrease from Modification |  | 4.50% |  | 4.50%
Agricultural Other Portfolio Segment [Member] | Payment Deferral |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Payment Deferral | 4 months |  | 4 months |
Agricultural Other Portfolio Segment [Member] | Extended Maturity |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Financing Receivable Modification Weighted Average Extension Term | 3 months 29 days |  | 3 months 29 days | 1 year
Residential Real Estate, Senior Lien, Portfolio Segment | Extended Maturity |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Financing Receivable Modification Weighted Average Extension Term |  |  |  | 2 years 7 months 6 days
Consumer, Secured, Indirect, Portfolio Segment | Extended Maturity |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Financing Receivable Modification Weighted Average Extension Term |  |  | 1 year 3 months 29 days |

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