Loans and ACL - Summary of Loan Portfolio Individually and Collectively Evaluated for Impairment (Detail) $ in Thousands	Dec. 31, 2022 USD ($)
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	$ 2,400,732
Less: Deferred loan fees, net of costs, excluding PPP loans	(1,640)
Total, excluding PPP loans	2,399,092
Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	2,341,984
PCI Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	58,748
Individually Evaluated for Impairment [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	45,170
Less: Deferred loan fees, net of costs, excluding PPP loans	0
Total, excluding PPP loans	45,170
Individually Evaluated for Impairment [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	45,170
Individually Evaluated for Impairment [Member] | PCI Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	0
Collectively Evaluated for Impairment [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	2,355,562
Less: Deferred loan fees, net of costs, excluding PPP loans	0
Total, excluding PPP loans	2,355,562
Collectively Evaluated for Impairment [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	2,296,814
Collectively Evaluated for Impairment [Member] | PCI Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	58,748
Related Allowance for Loan Losses [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	22,939
Less: Deferred loan fees, net of costs, excluding PPP loans	0
Total, excluding PPP loans	22,939
Related Allowance for Loan Losses [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	22,936
Related Allowance for Loan Losses [Member] | PCI Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	3
Commercial and Industrial [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	588,568
Commercial and Industrial [Member] | PCI Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	1,481
Commercial and Industrial [Member] | Individually Evaluated for Impairment [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	39,247
Commercial and Industrial [Member] | Individually Evaluated for Impairment [Member] | PCI Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	0
Commercial and Industrial [Member] | Collectively Evaluated for Impairment [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	549,321
Commercial and Industrial [Member] | Collectively Evaluated for Impairment [Member] | PCI Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	1,481
Commercial and Industrial [Member] | Related Allowance for Loan Losses [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	15,272
Commercial and Industrial [Member] | Related Allowance for Loan Losses [Member] | PCI Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	0
Construction, commercial [Member] | Real Estate [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	183,294
Construction, commercial [Member] | Real Estate [Member] | PCI Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	7
Construction, commercial [Member] | Individually Evaluated for Impairment [Member] | Real Estate [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	521
Construction, commercial [Member] | Individually Evaluated for Impairment [Member] | Real Estate [Member] | PCI Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	0
Construction, commercial [Member] | Collectively Evaluated for Impairment [Member] | Real Estate [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	182,773
Construction, commercial [Member] | Collectively Evaluated for Impairment [Member] | Real Estate [Member] | PCI Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	7
Construction, commercial [Member] | Related Allowance for Loan Losses [Member] | Real Estate [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	1,637
Construction, commercial [Member] | Related Allowance for Loan Losses [Member] | Real Estate [Member] | PCI Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	0
Construction, Residential [Member] | Real Estate [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	76,599
Construction, Residential [Member] | Individually Evaluated for Impairment [Member] | Real Estate [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	0
Construction, Residential [Member] | Collectively Evaluated for Impairment [Member] | Real Estate [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	76,599
Construction, Residential [Member] | Related Allowance for Loan Losses [Member] | Real Estate [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	628
Mortgage, Commercial [Member] | Real Estate [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	813,766
Mortgage, Commercial [Member] | Real Estate [Member] | PCI Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	51,223
Mortgage, Commercial [Member] | Individually Evaluated for Impairment [Member] | Real Estate [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	4,567
Mortgage, Commercial [Member] | Individually Evaluated for Impairment [Member] | Real Estate [Member] | PCI Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	0
Mortgage, Commercial [Member] | Collectively Evaluated for Impairment [Member] | Real Estate [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	809,199
Mortgage, Commercial [Member] | Collectively Evaluated for Impairment [Member] | Real Estate [Member] | PCI Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	51,223
Mortgage, Commercial [Member] | Related Allowance for Loan Losses [Member] | Real Estate [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	2,353
Mortgage, Commercial [Member] | Related Allowance for Loan Losses [Member] | Real Estate [Member] | PCI Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	3
Mortgage, Residential [Member] | Real Estate [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	626,094
Mortgage, Residential [Member] | Real Estate [Member] | PCI Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	5,678
Mortgage, Residential [Member] | Individually Evaluated for Impairment [Member] | Real Estate [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	835
Mortgage, Residential [Member] | Individually Evaluated for Impairment [Member] | Real Estate [Member] | PCI Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	0
Mortgage, Residential [Member] | Collectively Evaluated for Impairment [Member] | Real Estate [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	625,259
Mortgage, Residential [Member] | Collectively Evaluated for Impairment [Member] | Real Estate [Member] | PCI Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	5,678
Mortgage, Residential [Member] | Related Allowance for Loan Losses [Member] | Real Estate [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	1,760
Mortgage, Residential [Member] | Related Allowance for Loan Losses [Member] | Real Estate [Member] | PCI Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	0
Mortgage, Farmland [Member] | Real Estate [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	6,599
Mortgage, Farmland [Member] | Individually Evaluated for Impairment [Member] | Real Estate [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	0
Mortgage, Farmland [Member] | Collectively Evaluated for Impairment [Member] | Real Estate [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	6,599
Mortgage, Farmland [Member] | Related Allowance for Loan Losses [Member] | Real Estate [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	4
Consumer [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	47,064
Consumer [Member] | PCI Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	359
Consumer [Member] | Individually Evaluated for Impairment [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	0
Consumer [Member] | Individually Evaluated for Impairment [Member] | PCI Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	0
Consumer [Member] | Collectively Evaluated for Impairment [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	47,064
Consumer [Member] | Collectively Evaluated for Impairment [Member] | PCI Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	359
Consumer [Member] | Related Allowance for Loan Losses [Member] | Originated and Purchased Performing Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	1,282
Consumer [Member] | Related Allowance for Loan Losses [Member] | PCI Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans, excluding PPP loans	$ 0