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Loans and Allowance for Loan Losses - Loans by Portfolio Segment (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Loans and Leases Receivable Disclosure [Abstract]
Loans	$ 4,578,048		$ 4,524,510
Less: Allowance for loan losses	44,276	$ 42,407	42,674	$ 41,760	$ 36,303	$ 36,515
Total loans	4,533,772		4,481,836
Construction Real Estate Loans
Loans and Leases Receivable Disclosure [Abstract]
Loans	585,817		789,744
Less: Allowance for loan losses	5,155	4,734	5,287	4,414	3,395	3,164
1-4 Family Residential Real Estate Loans
Loans and Leases Receivable Disclosure [Abstract]
Loans	755,406		696,738
Less: Allowance for loan losses	2,790	2,704	2,840	2,739	2,660	2,173
Commercial Real Estate Loans
Loans and Leases Receivable Disclosure [Abstract]
Loans	2,422,612		2,168,451
Less: Allowance for loan losses	33,759	31,841	32,266	32,339	28,012	28,701
Commercial loans
Loans and Leases Receivable Disclosure [Abstract]
Loans	358,854		366,893
Less: Allowance for loan losses	2,400	2,942	2,086	2,069	2,017	2,235
Municipal loans
Loans and Leases Receivable Disclosure [Abstract]
Loans	402,041		441,168
Less: Allowance for loan losses	15	18	19	20	37	45
Loans to individuals
Loans and Leases Receivable Disclosure [Abstract]
Loans	53,318		61,516
Less: Allowance for loan losses	$ 157	$ 168	$ 176	$ 179	$ 182	$ 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

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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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