Loans and Allowance for Loan Losses - Summary of Allowance for Loans Losses (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022		Jun. 30, 2021
Financing Receivable Impaired [Line Items]
ALL, beginning of period	$ 12,013	$ 13,402	$ 12,121	[1]	$ 13,827
Charge-offs	(2,791)	(991)	(5,567)		(1,625)
Recoveries	526	596	694		805
Net charge-offs	(2,265)	(395)	(4,873)		(820)
Provision for loan losses	7,494	0	9,994		0
ALL, end of period	17,242	13,007	17,242		13,007
Commercial and Industrial [Member]
Financing Receivable Impaired [Line Items]
Charge-offs	(1,383)	(857)	(3,746)		(1,216)
Recoveries	2	394	37		450
Real Estate, Construction [Member]
Financing Receivable Impaired [Line Items]
Charge-offs	0	0	123		0
Recoveries	4	0	16		0
Real Estate, Mortgage [Member]
Financing Receivable Impaired [Line Items]
Charge-offs	(1,079)	(1)	(1,093)		(13)
Recoveries	387	87	391		103
Consumer [Member]
Financing Receivable Impaired [Line Items]
Charge-offs	(329)	(133)	(605)		(396)
Recoveries	$ 133	$ 115	$ 250		$ 252

[1] Derived from audited December 31, 2021 Consolidated Financial Statements.