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Merger - Summary of Pro Forma Information (Detail) - Comunibanc Corp [Member] - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Business Acquisition [Line Items]
Net interest income after provision for loan losses	$ 30,405	$ 26,891	$ 82,100	$ 78,452
Noninterest income	5,734	6,693	19,387	25,486
Net income	$ 11,176	$ 10,100	$ 26,914	$ 31,015
Pro forma earnings per share:
Basic	$ 0.74	$ 0.63	$ 1.80	$ 1.88
Diluted	$ 0.74	$ 0.63	$ 1.80	$ 1.88

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