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Loans and Allowance for Credit Losses - Summary of Amortized Cost Basis of Individually Evaluated Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Individually Evaluated for Impairment	$ 2,058	$ 2,307
Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Individually Evaluated for Impairment	4,978	3,564
Commercial real estate | Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Individually Evaluated for Impairment	0	0
Commercial real estate | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Individually Evaluated for Impairment	3,573	3,564
Residential mortgage | Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Individually Evaluated for Impairment	0	0
Residential mortgage | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Individually Evaluated for Impairment	1,062	0
Commercial and industrial | Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Individually Evaluated for Impairment	2,058	2,307
Commercial and industrial | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Individually Evaluated for Impairment	337	0
Home equity lines of credit | Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Individually Evaluated for Impairment	0	0
Home equity lines of credit | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Individually Evaluated for Impairment	$ 6	$ 0

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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-Section 50
-Paragraph 13
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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-Section 50
-Paragraph 13
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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-Section 50
-Paragraph 13
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph c
-Publisher SEC

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+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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