Loans and Allowance for Credit Losses - Summary of Loans by Credit Quality Risk Rating (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Loans And Leases Receivable Disclosure [Line Items]
Gross loans receivable	$ 3,207,016	$ 3,033,392
Financing Receivable, Unamortized Loan Cost (Fee) and Purchase Premium (Discount)	(7,462)	(7,300)
Loans receivable	3,199,554	3,026,092
Commercial And Industrial Loans Portfolio Segment [Member]
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	154,395	149,502
Construction, land and land development loans
Loans And Leases Receivable Disclosure [Line Items]
Gross loans receivable
Real Estate Portfolio Segment \| Residential real estate loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	231,157	225,391
Real Estate Portfolio Segment \| Commercial real estate loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	1,342,489	1,303,533
Consumer And Other Loans [Member]
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	1,447	1,628
Pass [Member] \| Commercial And Industrial Loans Portfolio Segment [Member]
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	150,631	146,223
Pass [Member] \| Real Estate Portfolio Segment \| Residential real estate loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	227,527	221,935
Pass [Member] \| Real Estate Portfolio Segment \| Commercial real estate loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	1,321,142	1,283,534
Pass [Member] \| Consumer And Other Loans [Member]
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	1,447	1,628
Substandard [Member] \| Commercial And Industrial Loans Portfolio Segment [Member]
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	0	0
Substandard [Member] \| Real Estate Portfolio Segment \| Residential real estate loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	212	170
Substandard [Member] \| Real Estate Portfolio Segment \| Commercial real estate loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	7,731	7,975
Substandard [Member] \| Consumer And Other Loans [Member]
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	0	0
Doubtful [Member] \| Commercial And Industrial Loans Portfolio Segment [Member]
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	0	0
Doubtful [Member] \| Real Estate Portfolio Segment \| Residential real estate loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	0	0
Doubtful [Member] \| Real Estate Portfolio Segment \| Commercial real estate loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	0	0
Doubtful [Member] \| Consumer And Other Loans [Member]
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	0	0
Other Loan Especially Mentioned \| Commercial And Industrial Loans Portfolio Segment [Member]
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	3,764	3,279
Other Loan Especially Mentioned \| Real Estate Portfolio Segment \| Residential real estate loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	3,418	3,286
Other Loan Especially Mentioned \| Real Estate Portfolio Segment \| Commercial real estate loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	13,616	12,024
Other Loan Especially Mentioned \| Consumer And Other Loans [Member]
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	$ 0	$ 0

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479344/326-20-45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
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-Paragraph 5
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Amortized cost excluding accrued interest, before allowance for credit loss, fee, and loan in process, of financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481598/310-20-45-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
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Amount of unamortized loan commitment, origination, and other costs (fees) and purchase premium (discount) on financing receivable recognized as adjustment to yield. Excludes financing receivable covered under loss sharing agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-4

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481598/310-20-45-1

Reference 3: http://www.xbrl.org/2003/role/recommendedDisclosureRef
-Name Accounting Standards Codification
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-Topic 310
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481569/310-20-50-3

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