Goodwill and Intangible Assets - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 125,520,000		$ 125,520,000		$ 125,520,000
Amortization of core deposit intangible assets	366,000	$ 399,000	757,000	$ 797,000
Valuation allowance	$ 0	$ 0	$ 0	$ 0