Fair Value Disclosures - Summary of Loans Held-for-Sale at Fair Value (Detail) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022
Fair Value Measurements Loans Held For Sale [Abstract]
Unpaid principal balance on loans held-for-sale	$ 11,416	$ 10,226	$ 22,233
Net unrealized gains on loans held-for-sale	350	271	149
Loans held-for-sale at fair value	$ 11,766	$ 10,497	$ 22,382