Fair Value Disclosures - Schedule of Gain Loss on Sale of Mortgage Loans (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Schedule Of Gain Loss On Sale Of Mortgage Loans [Abstract]
Realized gain on sale and fees on mortgage loans	[1]	$ 3,587	$ 3,779	$ 6,140	$ 6,359
Change in fair value on loans held-for-sale and IRLCs		921	(179)	1,486	172
Change in forward mortgage-backed securities trades		(382)	87	(668)	284
Total gain on sale of mortgage loans		$ 4,126	$ 3,687	$ 6,958	$ 6,815

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