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Loans and Allowance for Credit Losses - Amortized Cost Basis of Loans Experiencing Financial Difficulty and Modified (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Class of Financing Receivable	0.05%	0.05%
Real Estate Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Class of Financing Receivable	0.05%	0.04%
Consumer Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Class of Financing Receivable	0.00%	0.00%
Agricultural Real Estate Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Class of Financing Receivable	0.01%	0.01%
Residential Properties | Real Estate Loan | 1-4 Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Class of Financing Receivable	0.01%	0.02%
Commercial Real Estate | Real Estate Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Class of Financing Receivable	0.03%	0.02%
Commercial and Industrial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Class of Financing Receivable	0.00%	0.01%
Principal Forgiveness
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Balance	$ 0	$ 0
Principal Forgiveness | Real Estate Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Balance	0	0
Principal Forgiveness | Consumer Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Balance	0	0
Principal Forgiveness | Agricultural Real Estate Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Balance	0	0
Principal Forgiveness | Residential Properties | Real Estate Loan | 1-4 Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Balance	0	0
Principal Forgiveness | Commercial Real Estate | Real Estate Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Balance	0	0
Principal Forgiveness | Commercial and Industrial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Balance	0	0
Payment Delay Investment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Balance	1,387	1,385
Payment Delay Investment | Real Estate Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Balance	1,233	1,160
Payment Delay Investment | Consumer Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Balance	3	7
Payment Delay Investment | Agricultural Real Estate Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Balance	312	333
Payment Delay Investment | Residential Properties | Real Estate Loan | 1-4 Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Balance	47	57
Payment Delay Investment | Commercial Real Estate | Real Estate Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Balance	874	770
Payment Delay Investment | Commercial and Industrial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Balance	151	218
Term Extension Modifications
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Balance	1,109	1,276
Term Extension Modifications | Real Estate Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Balance	980	956
Term Extension Modifications | Consumer Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Balance	10	41
Term Extension Modifications | Agricultural Real Estate Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Balance	0	0
Term Extension Modifications | Residential Properties | Real Estate Loan | 1-4 Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Balance	768	819
Term Extension Modifications | Commercial Real Estate | Real Estate Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Balance	212	137
Term Extension Modifications | Commercial and Industrial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Balance	119	279
Interest Rate Reduction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Balance	472	0
Interest Rate Reduction | Real Estate Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Balance	472	0
Interest Rate Reduction | Consumer Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Balance	0	0
Interest Rate Reduction | Agricultural Real Estate Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Balance	0	0
Interest Rate Reduction | Residential Properties | Real Estate Loan | 1-4 Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Balance	0	0
Interest Rate Reduction | Commercial Real Estate | Real Estate Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Balance	472	0
Interest Rate Reduction | Commercial and Industrial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Balance	$ 0	$ 0

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 20
-Name Accounting Standards Codification
-Section 40
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481628/310-20-40-7

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
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Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
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-Name Accounting Standards Codification
-Section 55
-Paragraph 12A
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-URI https://asc.fasb.org/1943274/2147481933/310-10-55-12A

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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