Fair Value Disclosures - Summary of Loans Held-for-Sale at Fair Value (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Fairvaluemeasurementsloansheldforsale [Abstract]
Unpaid principal balance on loans held-for-sale	$ 10,757	$ 10,226
Net unrealized gains on loans held-for-sale	320	271
Loans held-for-sale at fair value	$ 11,077	$ 10,497

Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables.

No definition available.

Name:	us-gaap_LoansHeldForSaleFairValueDisclosure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant