Loans and Allowance for Loan Losses - Summary of Primary Segments of ALLL, Loans Individually and Collectively Evaluated for Impairment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable Impaired [Line Items]
Allowance, beginning of period	$ 13,827	$ 4,572
Charge-offs	(2,541)	(1,505)
Recoveries	718	310
Provision for loan losses	117	10,450
Allowance, end of period	12,121	13,827
Commercial and Industrial [Member]
Financing Receivable Impaired [Line Items]
Charge-offs	(1,098)	(6)
Recoveries	196	41
Consumer Loans [Member]
Financing Receivable Impaired [Line Items]
Charge-offs	(1,123)	(994)
Recoveries	$ 424	$ 261