Goodwill and Other Intangible Assets - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) reportingUnit	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Goodwill And Intangible Assets [Line Items]
Goodwill	$ 271,829	$ 271,829
Number of reporting units | reportingUnit	1
Amortization of intangible assets	$ 2,029	2,351	$ 868
Core Deposits
Goodwill And Intangible Assets [Line Items]
Core deposit intangible	$ 7,100	$ 9,100