Fair Value Disclosures - Summary of Loans Held-for-Sale at Fair Value (Detail) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022
Fair Value Measurements Loans Held For Sale [Abstract]
Unpaid principal balance on loans held-for-sale	$ 17,730	$ 10,226	$ 23,312
Net unrealized gains on loans held-for-sale	359	271	536
Loans held-for-sale at fair value	$ 18,089	$ 10,497	$ 23,848