Borrowed Funds - Scheduled Securities Sold Under Repurchase Agreements (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Total securities sold under repurchase agreements	$ 89,241	$ 72,161
Securities Loaned or Sold under Agreements to Repurchase
Debt Instrument [Line Items]
Due in one year or less	89,241
Thereafter	0
Total securities sold under repurchase agreements	$ 89,241