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Loans and ACL (Summary of Loan Modification Effects) (Details)	12 Months Ended
	Dec. 31, 2023
Commercial Real Estate, Owner Occupied, Portfolio Segment | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable Modification Payment Delay	6 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
Commercial Real Estate, Multifamily, Portfolio Segment | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable Modification Payment Delay	6 months
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%
Agricultural Mortgage, Portfolio Segment | Extended Maturity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable Modification Weighted Average Extension Term	1 year 29 days
Agricultural Other Portfolio Segment [Member] | Extended Maturity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable Modification Weighted Average Extension Term	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

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-42

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Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
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-Section 55
-Paragraph 12A
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481933/310-10-55-12A

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
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