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Borrowed Funds - Scheduled Securities Sold Under Repurchase Agreements (Detail) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Debt Instrument [Line Items]    
Total securities sold under repurchase agreements $ 82,470 $ 98,000
Securities Loaned or Sold under Agreements to Repurchase    
Debt Instrument [Line Items]    
Due in one year or less 82,470  
Thereafter 0  
Total securities sold under repurchase agreements $ 82,470