Fair Value Disclosures - Summary of Loans Held-for-Sale at Fair Value (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Fair Value Measurements Loans Held For Sale [Abstract]
Unpaid principal balance on loans held-for-sale	$ 18,929	$ 10,757	$ 17,730
Net unrealized gains on loans held-for-sale	464	320	359
Loans held-for-sale at fair value	$ 19,393	$ 11,077	$ 18,089