Fair Value Disclosures - Schedule of Gain Loss on Sale of Mortgage Loans (Detail) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Scheduleofgainlossonsaleofmortgageloans [Abstract]
Realized gain on sale and fees on mortgage loans	[1]	$ 13,170	$ 12,116	$ 20,357
Change in fair value on loans held-for-sale and IRLCs		(359)	147	(1,554)
Change in forward mortgage-backed securities trades		372	(373)	232
Total gain on sale of mortgage loans		$ 13,183	$ 11,890	$ 19,035

[1] This includes gain on loans held-for-sale carried under the fair value method and lower of cost or market.