Goodwill and Core Deposit Intangible - Summary of Carrying Amount of Goodwill and Core Deposit Intangible Assets (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2024 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill, Beginning balance	$ 8,853
Core Deposit Intangible, Beginning balance	1,422
Goodwill, Acquisition of Cornerstone Bank	5,528
Core Deposit Intangible, Acquisition of Cornerstone Bank	2,812
Amortization expense	(374)
Goodwill, Ending balance	14,381
Core Deposit Intangible, Ending balance	$ 3,860