Fair Value Disclosures - Summary of Loans Held-for-Sale at Fair Value (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021
Fair Value Measurements Loans Held For Sale [Abstract]
Unpaid principal balance on loans held-for-sale	$ 23,312	$ 33,200	$ 54,542
Net unrealized gains on loans held-for-sale	536	922	1,715
Loans held-for-sale at fair value	$ 23,848	$ 34,122	$ 56,257