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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, 2023	Dec. 31, 2022	Sep. 30, 2022
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	$ 2,549	$ 6,115	$ 5,915
Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	470
Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	2,079
Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	470	781	839
Commercial and industrial | Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	470
Commercial and industrial | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	0
Commercial real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	1,541	5,334	5,076
Commercial real estate | Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	0
Commercial real estate | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	1,541
Commercial real estate construction
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	0	0	0
Commercial real estate construction | Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	0
Commercial real estate construction | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	0
Residential mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	343	0	0
Residential mortgage | Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	0
Residential mortgage | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	343
Home equity lines of credit
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	195	0	0
Home equity lines of credit | Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	0
Home equity lines of credit | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	195
Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	0	$ 0	$ 0
Consumer | Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	0
Consumer | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	$ 0

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

Reference 2: 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/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 11C
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-11C

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 4
-Subparagraph (SAB Topic 6.L(5)(a))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480418/310-10-S99-4

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