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Loans - Collateral-dependent Loans by Class (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 5,654,944	$ 4,133,267
Commercial and Industrial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	732,328	591,785
Commercial Real Estate Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,055,074	2,224,872
Agricultural Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	455,678	431,037
Leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	79,745	79,253
Home Equity Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	406,280	344,808
Consumer Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	110,174	81,396
Credit Cards
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	27,443	22,668
Residential Mortgage Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	788,222	357,448
Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	73,353	17,423
Total | Commercial and Industrial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	24,209	6,134
Total | Commercial Real Estate Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	38,193	7,293
Total | Agricultural Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	8,172	3,040
Total | Leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Total | Home Equity Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	528	423
Total | Consumer Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	22	10
Total | Credit Cards
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Total | Residential Mortgage Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,229	523
Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	55,340	17,012
Real Estate | Commercial and Industrial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	11,726	5,986
Real Estate | Commercial Real Estate Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	38,193	7,293
Real Estate | Agricultural Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,654	2,777
Real Estate | Leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Real Estate | Home Equity Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	528	423
Real Estate | Consumer Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	10	10
Real Estate | Credit Cards
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Real Estate | Residential Mortgage Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,229	523
Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	6,753	353
Equipment | Commercial and Industrial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	6,076	90
Equipment | Commercial Real Estate Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Equipment | Agricultural Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	665	263
Equipment | Leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Equipment | Home Equity Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Equipment | Consumer Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	12	0
Equipment | Credit Cards
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Equipment | Residential Mortgage Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Accounts Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Accounts Receivable | Commercial and Industrial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Accounts Receivable | Commercial Real Estate Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Accounts Receivable | Agricultural Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Accounts Receivable | Leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Accounts Receivable | Home Equity Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Accounts Receivable | Consumer Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Accounts Receivable | Credit Cards
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Accounts Receivable | Residential Mortgage Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	11,260	58
Other | Commercial and Industrial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	6,407	58
Other | Commercial Real Estate Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Other | Agricultural Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	4,853	0
Other | Leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Other | Home Equity Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Other | Consumer Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Other | Credit Cards
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Other | Residential Mortgage Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 0	$ 0

X

- Definition

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+ References

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
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481990/310-10-45-2

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(7))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

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