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Loans and ACL (Summary of Loan Modification Effects) (Details)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Commercial and Industrial, Secured, Portfolio Segment | Extended Maturity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable Modification Weighted Average Extension Term	3 years
Commercial Real Estate, Owner Occupied, Portfolio Segment | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Payment Deferral	7 months
Agricultural Mortgage, Portfolio Segment | Extended Maturity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable Modification Weighted Average Extension Term		1 year
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
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 18 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

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Section 50
-Paragraph 42
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-Publisher FASB
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-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
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 33
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-33

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
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