Loans and Allowance for Credit Losses - Summary of Risk Category of Loans by Class of Loans (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2024	Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	$ 3,418,832	$ 3,026,092
Total Community Bank Loans Portfolio Segment
Financing Receivable, Credit Quality Indicator [Line Items]
2024	144,110	367,855
2023, current period gross write-offs	25	18
2023	409,108	455,021
2022, current period gross write-offs	0	0
2022	416,830	309,306
2021, current period gross write-offs	0	0
2021	294,265	192,002
2020, current period gross write-offs	0	0
2020	172,729	179,206
2019, current period gross write-offs	0	0
Prior	372,376	261,254
Prior, current period gross write-offs	390	46
Revolving Loans Amortized Cost Basis	92,026	69,583
Revolving Loans Amortized Cost Basis, current period gross write-offs	0	0
Revolving Loans Converted To Term	2,860	2,927
Revolving Loans Converted To Term, current period gross write-offs	0	0
Loans receivable	1,904,304	1,837,154
Total, current period gross write-offs	415	64
Total Community Bank Loans Portfolio Segment \| Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	127,380	367,855
2023	409,108	450,666
2022	412,538	297,806
2021	288,429	188,443
2020	171,727	171,800
Prior	368,758	259,115
Revolving Loans Amortized Cost Basis	88,373	65,464
Revolving Loans Converted To Term	2,860	2,757
Loans receivable	1,869,173	1,803,906
Total Community Bank Loans Portfolio Segment \| Other Loan Especially Mentioned
Financing Receivable, Credit Quality Indicator [Line Items]
2024	14,449	0
2023	0	4,355
2022	4,292	11,500
2021	5,836	2,635
2020	171	506
Prior	3,618	2,139
Revolving Loans Amortized Cost Basis	3,410	3,368
Revolving Loans Converted To Term	0	0
Loans receivable	31,776	24,503
Total Community Bank Loans Portfolio Segment \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2024	2,281	0
2023	0	0
2022	0	0
2021	0	924
2020	831	6,900
Prior	0	0
Revolving Loans Amortized Cost Basis	243	751
Revolving Loans Converted To Term	0	170
Loans receivable	3,355	8,745
Total Community Bank Loans Portfolio Segment \| Doubtful [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted To Term	0	0
Loans receivable	0	0
Commercial and industrial loans
Financing Receivable, Credit Quality Indicator [Line Items]
2024	7,450	15,882
2023, current period gross write-offs	0	0
2023	12,757	56,428
2022, current period gross write-offs	0	0
2022	44,470	15,566
2021, current period gross write-offs	0	0
2021	13,751	10,155
2020, current period gross write-offs	0	0
2020	8,652	12,429
2019, current period gross write-offs	0	0
Prior	8,202	1,442
Prior, current period gross write-offs	167	46
Revolving Loans Amortized Cost Basis	55,707	36,580
Revolving Loans Amortized Cost Basis, current period gross write-offs	0	0
Revolving Loans Converted To Term	1,172	1,020
Revolving Loans Converted To Term, current period gross write-offs	0	0
Loans receivable	152,161	149,502
Total, current period gross write-offs	167	46
Commercial and industrial loans \| Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	7,450	15,882
2023	12,757	56,428
2022	44,470	15,566
2021	13,751	10,044
2020	8,652	12,429
Prior	8,202	1,442
Revolving Loans Amortized Cost Basis	52,199	33,412
Revolving Loans Converted To Term	1,172	1,020
Loans receivable	148,653	146,223
Commercial and industrial loans \| Other Loan Especially Mentioned
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	111
2020	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	3,310	3,168
Revolving Loans Converted To Term	0	0
Loans receivable	3,310	3,279
Commercial and industrial loans \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	198	0
Revolving Loans Converted To Term	0	0
Loans receivable	198	0
Commercial and industrial loans \| Doubtful [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted To Term	0	0
Loans receivable	0	0
Real Estate Portfolio Segment \| Construction, land and land development loans
Financing Receivable, Credit Quality Indicator [Line Items]
2024	23,117	75,129
2023, current period gross write-offs	0	0
2023	89,408	49,275
2022, current period gross write-offs	0	0
2022	34,624	24,400
2021, current period gross write-offs	0	0
2021	12,039	5,184
2020, current period gross write-offs	0	0
2020	761	914
2019, current period gross write-offs	0	0
Prior	2,198	1,598
Prior, current period gross write-offs	0	0
Revolving Loans Amortized Cost Basis	904	600
Revolving Loans Amortized Cost Basis, current period gross write-offs	0	0
Revolving Loans Converted To Term	0	0
Revolving Loans Converted To Term, current period gross write-offs	0	0
Loans receivable	163,051	157,100
Total, current period gross write-offs	0	0
Real Estate Portfolio Segment \| Construction, land and land development loans \| Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	23,117	75,129
2023	89,408	49,275
2022	34,624	20,811
2021	11,612	2,859
2020	761	914
Prior	2,198	1,598
Revolving Loans Amortized Cost Basis	904	0
Revolving Loans Converted To Term	0	0
Loans receivable	162,624	150,586
Real Estate Portfolio Segment \| Construction, land and land development loans \| Other Loan Especially Mentioned
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	3,589
2021	427	2,325
2020	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted To Term	0	0
Loans receivable	427	5,914
Real Estate Portfolio Segment \| Construction, land and land development loans \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	600
Revolving Loans Converted To Term	0	0
Loans receivable	0	600
Real Estate Portfolio Segment \| Construction, land and land development loans \| Doubtful [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted To Term	0	0
Loans receivable	0	0
Real Estate Portfolio Segment \| Residential real estate loans
Financing Receivable, Credit Quality Indicator [Line Items]
2024	14,746	32,352
2023, current period gross write-offs	0	0
2023	31,201	42,460
2022, current period gross write-offs	0	0
2022	39,369	41,157
2021, current period gross write-offs	0	0
2021	38,310	30,287
2020, current period gross write-offs	0	0
2020	28,744	31,982
2019, current period gross write-offs	0	0
Prior	33,412	22,469
Prior, current period gross write-offs	0	0
Revolving Loans Amortized Cost Basis	26,669	24,496
Revolving Loans Amortized Cost Basis, current period gross write-offs	0	0
Revolving Loans Converted To Term	16	188
Revolving Loans Converted To Term, current period gross write-offs	0	0
Loans receivable	212,467	225,391
Total, current period gross write-offs	0	0
Real Estate Portfolio Segment \| Residential real estate loans \| Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	12,465	32,352
2023	31,201	41,362
2022	38,282	39,137
2021	38,310	30,259
2020	28,733	31,982
Prior	33,412	22,429
Revolving Loans Amortized Cost Basis	26,524	24,396
Revolving Loans Converted To Term	16	18
Loans receivable	208,943	221,935
Real Estate Portfolio Segment \| Residential real estate loans \| Other Loan Especially Mentioned
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	1,098
2022	1,087	2,020
2021	0	28
2020	11	0
Prior	0	40
Revolving Loans Amortized Cost Basis	100	100
Revolving Loans Converted To Term	0	0
Loans receivable	1,198	3,286
Real Estate Portfolio Segment \| Residential real estate loans \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2024	2,281	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	45	0
Revolving Loans Converted To Term	0	170
Loans receivable	2,326	170
Real Estate Portfolio Segment \| Residential real estate loans \| Doubtful [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted To Term	0	0
Loans receivable	0	0
Real Estate Portfolio Segment \| Commercial real estate loans
Financing Receivable, Credit Quality Indicator [Line Items]
2024	98,545	244,169
2023, current period gross write-offs	0	0
2023	275,685	306,586
2022, current period gross write-offs	0	0
2022	289,291	228,178
2021, current period gross write-offs	0	0
2021	230,162	145,697
2020, current period gross write-offs	0	0
2020	133,915	133,843
2019, current period gross write-offs	0	0
Prior	324,634	235,581
Prior, current period gross write-offs	223	0
Revolving Loans Amortized Cost Basis	8,548	7,760
Revolving Loans Amortized Cost Basis, current period gross write-offs	0	0
Revolving Loans Converted To Term	1,672	1,719
Revolving Loans Converted To Term, current period gross write-offs	0	0
Loans receivable	1,362,452	1,303,533
Total, current period gross write-offs	223	0
Real Estate Portfolio Segment \| Commercial real estate loans \| Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	84,096	244,169
2023	275,685	303,329
2022	286,086	222,287
2021	224,753	144,602
2020	132,924	126,437
Prior	321,016	233,482
Revolving Loans Amortized Cost Basis	8,548	7,509
Revolving Loans Converted To Term	1,672	1,719
Loans receivable	1,334,780	1,283,534
Real Estate Portfolio Segment \| Commercial real estate loans \| Other Loan Especially Mentioned
Financing Receivable, Credit Quality Indicator [Line Items]
2024	14,449	0
2023	0	3,257
2022	3,205	5,891
2021	5,409	171
2020	160	506
Prior	3,618	2,099
Revolving Loans Amortized Cost Basis	0	100
Revolving Loans Converted To Term	0	0
Loans receivable	26,841	12,024
Real Estate Portfolio Segment \| Commercial real estate loans \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	924
2020	831	6,900
Prior	0	0
Revolving Loans Amortized Cost Basis	0	151
Revolving Loans Converted To Term	0	0
Loans receivable	831	7,975
Real Estate Portfolio Segment \| Commercial real estate loans \| Doubtful [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted To Term	0	0
Loans receivable	0	0
Consumer and other loans:
Financing Receivable, Credit Quality Indicator [Line Items]
2024	252	323
2023, current period gross write-offs	25	18
2023	57	272
2022, current period gross write-offs	0	0
2022	9,076	5
2021, current period gross write-offs	0	0
2021	3	679
2020, current period gross write-offs	0	0
2020	657	38
2019, current period gross write-offs	0	0
Prior	3,930	164
Prior, current period gross write-offs	0	0
Revolving Loans Amortized Cost Basis	198	147
Revolving Loans Amortized Cost Basis, current period gross write-offs	0	0
Revolving Loans Converted To Term	0	0
Revolving Loans Converted To Term, current period gross write-offs	0	0
Loans receivable	14,173	1,628
Total, current period gross write-offs	25	18
Consumer and other loans: \| Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	252	323
2023	57	272
2022	9,076	5
2021	3	679
2020	657	38
Prior	3,930	164
Revolving Loans Amortized Cost Basis	198	147
Revolving Loans Converted To Term	0	0
Loans receivable	14,173	1,628
Consumer and other loans: \| Other Loan Especially Mentioned
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted To Term	0	0
Loans receivable	0	0
Consumer and other loans: \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted To Term	0	0
Loans receivable	0	0
Consumer and other loans: \| Doubtful [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted To Term	0	0
Loans receivable	$ 0	$ 0

Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Writeoff

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- Definition

Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan, Writeoff

+ References

No definition available.

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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
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Amortized cost excluding accrued interest, of financing receivable originated more than five years prior to current fiscal year. Excludes net investment in lease.

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Amount, excluding accrued interest, of writeoff of financing receivable originated more than five years before current fiscal year. Excludes net investment in lease.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Amortized cost excluding accrued interest, of financing receivable that can be withdrawn, repaid, and redrawn.

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Amortized cost excluding accrued interest, of revolving financing receivable converted to term loan.

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Amount, excluding accrued interest, of writeoff of financing receivable that can be withdrawn, repaid, and redrawn.

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Amortized cost excluding accrued interest, of financing receivable originated four years prior to current fiscal year. Excludes net investment in lease.

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Amount, excluding accrued interest, of writeoff of financing receivable originated four years before current fiscal year. Excludes net investment in lease.

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Amortized cost excluding accrued interest, of financing receivable originated three years prior to current fiscal year. Excludes net investment in lease.

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Amount, excluding accrued interest, of writeoff of financing receivable originated three years before current fiscal year. Excludes net investment in lease.

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Amortized cost excluding accrued interest, of financing receivable originated in current fiscal year. Excludes net investment in lease.

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Amortized cost excluding accrued interest, of financing receivable originated two years prior to current fiscal year. Excludes net investment in lease.

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Amount, excluding accrued interest, of writeoff of financing receivable originated two years before current fiscal year. Excludes net investment in lease.

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Amortized cost excluding accrued interest of financing receivable originated in fiscal year prior to current fiscal year. Excludes net investment in lease.

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Amount, excluding accrued interest, of writeoff of financing receivable originated in fiscal year before current fiscal year. Excludes net investment in lease.

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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.

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-URI https://asc.fasb.org/1943274/2147479319/326-20-50-5

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 79
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479294/326-20-55-79

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