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Loans and Allowance for Loan Losses - Loans by Portfolio Segment (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Jun. 30, 2025	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023
Loans and Leases Receivable Disclosure [Abstract]
Loans	$ 4,765,289		$ 4,661,597
Less: Allowance for loan losses	45,294	$ 44,421	44,884	$ 44,276	$ 42,407	$ 42,674
Total loans	4,719,995		4,616,713
Construction Real Estate Loans
Loans and Leases Receivable Disclosure [Abstract]
Loans	519,528		537,827
Less: Allowance for loan losses	6,224	6,194	3,958	5,155	4,734	5,287
1-4 Family Residential Real Estate Loans
Loans and Leases Receivable Disclosure [Abstract]
Loans	730,061		740,396
Less: Allowance for loan losses	2,828	2,781	2,780	2,790	2,704	2,840
Commercial Real Estate Loans
Loans and Leases Receivable Disclosure [Abstract]
Loans	2,688,712		2,579,735
Less: Allowance for loan losses	31,088	30,701	35,526	33,759	31,841	32,266
Commercial loans
Loans and Leases Receivable Disclosure [Abstract]
Loans	429,952		363,167
Less: Allowance for loan losses	4,800	4,433	2,448	2,400	2,942	2,086
Municipal loans
Loans and Leases Receivable Disclosure [Abstract]
Loans	353,324		390,968
Less: Allowance for loan losses	13	14	16	15	18	19
Loans to individuals
Loans and Leases Receivable Disclosure [Abstract]
Loans	43,712		49,504
Less: Allowance for loan losses	$ 341	$ 298	$ 156	$ 157	$ 168	$ 176

X

- Definition

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

+ References

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

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- Definition

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

+ References

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

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- Definition

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+ References

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
-SubTopic 20
-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
-Section 50
-Paragraph 5
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-5

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