Fair Value Disclosures - Schedule of Reconciliation for Recurring Level 3 Fair Value Measurements (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2024 USD ($)
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Beginning Balance	$ 806
Change in fair value:
Included in income from mortgage banking	278
Change in observability of significant inputs:
Ending Balance	1,084
Interest Rate Lock Commitments [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Beginning Balance	806
Change in fair value:
Included in income from mortgage banking	278
Change in observability of significant inputs:
Ending Balance	$ 1,084