Segment Information - Information about Company's Segments (Parenthetical) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Segment Reporting Information [Line Items]
Taxable-equivalent adjustment	$ 13,462,000	$ 3,234,000
Average total assets	202,599,000	151,648,000	$ 190,252,000
Commercial Banking [Member]
Segment Reporting Information [Line Items]
Average total assets	$ 48,222,000	26,329,000	$ 40,930,000
Hospitality [Member]
Segment Reporting Information [Line Items]
Average total assets		$ 1,290,000