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Loans and Allowance for Loan Losses - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Loans and Leases Receivable Disclosure [Line Items]
Gross loans	$ 2,412,699	$ 1,808,484
Impaired financing receivable, related allowance	11,606	879
Bad debts recovered	1,383	718	$ 310
Allowance for loan losses	30,740	12,121	13,827	$ 4,572
Increase in impaired financing receivable with no related allowance recorded investment	68,700
Nonperforming trouble debt restructuring	38,300	688
Increase in originated and purchased performing loans graded substandard	(4,322)	(12,919)
Gain on sale of Paycheck Protection Program loans	0	24,315	0
Maximum [Member]
Loans and Leases Receivable Disclosure [Line Items]
Allowance for loan losses	7,400
Doubtful [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans	0	0
Grade 5 Watch [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans	$ 136,557	77,821
Grade 5 Watch [Member] | Minimum [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loan To Value Ratio	90.00%
Grade 7 Substandard [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans	$ 86,879	37,315
Allowance for loan losses [Member]
Loans and Leases Receivable Disclosure [Line Items]
Financing receivable, allowance for credit loss, writeoff	11,400
Paycheck Protection Program [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans	11,967	30,742
Commercial and Industrial [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gross loans	590,049	320,827
Impaired financing receivable, related allowance	11,605	836
Bad debts recovered	442	196	$ 41
Impaired financing receivable, with an allowance recorded, recorded investment	66,386	4,612
Nonperforming trouble debt restructuring	38,300	37,300
Federal Home Loan Bank Advances [Member] | Asset Pledged As Collateral Without Right [Member] | Paycheck Protection Plan Liquidity Facility Advances [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans pledged	51	17,900
Federal Home Loan Bank Advances [Member] | Asset Pledged As Collateral Without Right [Member] | Commercial and Residential Mortgages [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans pledged	$ 436,000	$ 478,300

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