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Loans and Allowance for Loan Losses - Loans by Portfolio Segment (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Loans and Leases Receivable Disclosure [Abstract]
Loans	$ 4,577,368	$ 4,524,510
Less: Allowance for loan losses	43,557	42,674	$ 36,332	$ 36,515
Total loans	4,533,811	4,481,836
Construction Real Estate Loans
Loans and Leases Receivable Disclosure [Abstract]
Loans	599,464	789,744
Less: Allowance for loan losses	4,920	5,287	3,152	3,164
1-4 Family Residential Real Estate Loans
Loans and Leases Receivable Disclosure [Abstract]
Loans	720,508	696,738
Less: Allowance for loan losses	2,768	2,840	2,314	2,173
Commercial Real Estate Loans
Loans and Leases Receivable Disclosure [Abstract]
Loans	2,413,345	2,168,451
Less: Allowance for loan losses	32,893	32,266	28,721	28,701
Commercial loans
Loans and Leases Receivable Disclosure [Abstract]
Loans	358,053	366,893
Less: Allowance for loan losses	2,774	2,086	1,901	2,235
Municipal loans
Loans and Leases Receivable Disclosure [Abstract]
Loans	427,225	441,168
Less: Allowance for loan losses	19	19	44	45
Loans to individuals
Loans and Leases Receivable Disclosure [Abstract]
Loans	58,773	61,516
Less: Allowance for loan losses	$ 183	$ 176	$ 200	$ 197

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

Amortized cost excluding accrued interest, before 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

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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