Loans and Allowance for Credit Losses - Summary of Accounts Notes Loans and Financing Receivable (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	$ 2,430,117	$ 2,412,699
Less: deferred loan fees, net of costs	830	(1,640)
Total	2,430,947	2,411,059
Commercial and Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	506,558	590,049
Paycheck Protection Program [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	2,386	11,967
Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	59,169	47,423
Grade 1 Prime [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		13,031
Grade 2 Desirable [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		10,887
Grade 3 Good [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		653,716
Grade 4 Acceptable [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		1,501,570
Grade 5 Pass/Watch [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		136,557
Grade 6 Special Mention [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		10,059
Grade 7 Substandard [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		86,879
Originated and Purchased Performing Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		2,353,951
Originated and Purchased Performing Loans [Member] | Commercial and Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		588,568
Originated and Purchased Performing Loans [Member] | Paycheck Protection Program [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		11,967
Originated and Purchased Performing Loans [Member] | Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		47,064
Originated and Purchased Performing Loans [Member] | Grade 1 Prime [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		13,031
Originated and Purchased Performing Loans [Member] | Grade 1 Prime [Member] | Commercial and Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		318
Originated and Purchased Performing Loans [Member] | Grade 1 Prime [Member] | Paycheck Protection Program [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		11,967
Originated and Purchased Performing Loans [Member] | Grade 1 Prime [Member] | Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		197
Originated and Purchased Performing Loans [Member] | Grade 2 Desirable [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		10,887
Originated and Purchased Performing Loans [Member] | Grade 2 Desirable [Member] | Commercial and Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		885
Originated and Purchased Performing Loans [Member] | Grade 2 Desirable [Member] | Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		0
Originated and Purchased Performing Loans [Member] | Grade 3 Good [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		653,716
Originated and Purchased Performing Loans [Member] | Grade 3 Good [Member] | Commercial and Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		192,393
Originated and Purchased Performing Loans [Member] | Grade 3 Good [Member] | Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		21,330
Originated and Purchased Performing Loans [Member] | Grade 4 Acceptable [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		1,475,963
Originated and Purchased Performing Loans [Member] | Grade 4 Acceptable [Member] | Commercial and Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		291,204
Originated and Purchased Performing Loans [Member] | Grade 4 Acceptable [Member] | Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		24,731
Originated and Purchased Performing Loans [Member] | Grade 5 Pass/Watch [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		108,160
Originated and Purchased Performing Loans [Member] | Grade 5 Pass/Watch [Member] | Commercial and Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		31,902
Originated and Purchased Performing Loans [Member] | Grade 5 Pass/Watch [Member] | Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		256
Originated and Purchased Performing Loans [Member] | Grade 6 Special Mention [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		8,247
Originated and Purchased Performing Loans [Member] | Grade 6 Special Mention [Member] | Commercial and Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		2,834
Originated and Purchased Performing Loans [Member] | Grade 7 Substandard [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		83,947
Originated and Purchased Performing Loans [Member] | Grade 7 Substandard [Member] | Commercial and Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		69,032
Originated and Purchased Performing Loans [Member] | Grade 7 Substandard [Member] | Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		550
PCI Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		58,748
PCI Loans [Member] | Commercial and Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		1,481
PCI Loans [Member] | Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		359
PCI Loans [Member] | Grade 4 Acceptable [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		25,607
PCI Loans [Member] | Grade 4 Acceptable [Member] | Commercial and Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		1,369
PCI Loans [Member] | Grade 5 Pass/Watch [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		28,397
PCI Loans [Member] | Grade 5 Pass/Watch [Member] | Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		353
PCI Loans [Member] | Grade 6 Special Mention [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		1,812
PCI Loans [Member] | Grade 6 Special Mention [Member] | Commercial and Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		112
PCI Loans [Member] | Grade 7 Substandard [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		2,932
PCI Loans [Member] | Grade 7 Substandard [Member] | Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		6
Real Estate [Member] | Construction, Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	180,052	183,301
Real Estate [Member] | Construction, Residential [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	75,832	76,599
Real Estate [Member] | Mortgage, Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	870,540	864,989
Real Estate [Member] | Mortgage, Residential [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	730,110	631,772
Real Estate [Member] | Mortgage, Farmland [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	$ 5,470	6,599
Real Estate [Member] | Originated and Purchased Performing Loans [Member] | Construction, Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		183,294
Real Estate [Member] | Originated and Purchased Performing Loans [Member] | Construction, Residential [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		76,599
Real Estate [Member] | Originated and Purchased Performing Loans [Member] | Mortgage, Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		813,766
Real Estate [Member] | Originated and Purchased Performing Loans [Member] | Mortgage, Residential [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		626,094
Real Estate [Member] | Originated and Purchased Performing Loans [Member] | Mortgage, Farmland [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		6,599
Real Estate [Member] | Originated and Purchased Performing Loans [Member] | Grade 1 Prime [Member] | Mortgage, Farmland [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		549
Real Estate [Member] | Originated and Purchased Performing Loans [Member] | Grade 2 Desirable [Member] | Construction, Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		361
Real Estate [Member] | Originated and Purchased Performing Loans [Member] | Grade 2 Desirable [Member] | Mortgage, Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		2,330
Real Estate [Member] | Originated and Purchased Performing Loans [Member] | Grade 2 Desirable [Member] | Mortgage, Residential [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		7,311
Real Estate [Member] | Originated and Purchased Performing Loans [Member] | Grade 3 Good [Member] | Construction, Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		14,223
Real Estate [Member] | Originated and Purchased Performing Loans [Member] | Grade 3 Good [Member] | Construction, Residential [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		3,110
Real Estate [Member] | Originated and Purchased Performing Loans [Member] | Grade 3 Good [Member] | Mortgage, Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		187,648
Real Estate [Member] | Originated and Purchased Performing Loans [Member] | Grade 3 Good [Member] | Mortgage, Residential [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		233,697
Real Estate [Member] | Originated and Purchased Performing Loans [Member] | Grade 3 Good [Member] | Mortgage, Farmland [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		1,315
Real Estate [Member] | Originated and Purchased Performing Loans [Member] | Grade 4 Acceptable [Member] | Construction, Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		156,027
Real Estate [Member] | Originated and Purchased Performing Loans [Member] | Grade 4 Acceptable [Member] | Construction, Residential [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		72,327
Real Estate [Member] | Originated and Purchased Performing Loans [Member] | Grade 4 Acceptable [Member] | Mortgage, Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		561,554
Real Estate [Member] | Originated and Purchased Performing Loans [Member] | Grade 4 Acceptable [Member] | Mortgage, Residential [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		365,511
Real Estate [Member] | Originated and Purchased Performing Loans [Member] | Grade 4 Acceptable [Member] | Mortgage, Farmland [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		4,609
Real Estate [Member] | Originated and Purchased Performing Loans [Member] | Grade 5 Pass/Watch [Member] | Construction, Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		8,504
Real Estate [Member] | Originated and Purchased Performing Loans [Member] | Grade 5 Pass/Watch [Member] | Construction, Residential [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		1,162
Real Estate [Member] | Originated and Purchased Performing Loans [Member] | Grade 5 Pass/Watch [Member] | Mortgage, Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		54,352
Real Estate [Member] | Originated and Purchased Performing Loans [Member] | Grade 5 Pass/Watch [Member] | Mortgage, Residential [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		11,858
Real Estate [Member] | Originated and Purchased Performing Loans [Member] | Grade 5 Pass/Watch [Member] | Mortgage, Farmland [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		126
Real Estate [Member] | Originated and Purchased Performing Loans [Member] | Grade 6 Special Mention [Member] | Construction, Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		3,365
Real Estate [Member] | Originated and Purchased Performing Loans [Member] | Grade 6 Special Mention [Member] | Mortgage, Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		2,048
Real Estate [Member] | Originated and Purchased Performing Loans [Member] | Grade 7 Substandard [Member] | Construction, Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		814
Real Estate [Member] | Originated and Purchased Performing Loans [Member] | Grade 7 Substandard [Member] | Mortgage, Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		5,834
Real Estate [Member] | Originated and Purchased Performing Loans [Member] | Grade 7 Substandard [Member] | Mortgage, Residential [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		7,717
Real Estate [Member] | PCI Loans [Member] | Construction, Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		7
Real Estate [Member] | PCI Loans [Member] | Mortgage, Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		51,223
Real Estate [Member] | PCI Loans [Member] | Mortgage, Residential [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		5,678
Real Estate [Member] | PCI Loans [Member] | Grade 4 Acceptable [Member] | Construction, Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		7
Real Estate [Member] | PCI Loans [Member] | Grade 4 Acceptable [Member] | Mortgage, Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		22,778
Real Estate [Member] | PCI Loans [Member] | Grade 4 Acceptable [Member] | Mortgage, Residential [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		1,453
Real Estate [Member] | PCI Loans [Member] | Grade 5 Pass/Watch [Member] | Mortgage, Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		26,059
Real Estate [Member] | PCI Loans [Member] | Grade 5 Pass/Watch [Member] | Mortgage, Residential [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		1,985
Real Estate [Member] | PCI Loans [Member] | Grade 6 Special Mention [Member] | Mortgage, Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		1,700
Real Estate [Member] | PCI Loans [Member] | Grade 7 Substandard [Member] | Mortgage, Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		686
Real Estate [Member] | PCI Loans [Member] | Grade 7 Substandard [Member] | Mortgage, Residential [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans		$ 2,240