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LOANS HELD FOR SALE - Portfolio of Loans Held for Sale (Detail) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Accounts Notes And Loans Receivable [Line Items]    
Loans Receivable Held For Sale Net $ 30,681 $ 50,289
Residential Portfolio Segment [Member]    
Accounts Notes And Loans Receivable [Line Items]    
Loans Receivable Held For Sale Net $ 30,681 $ 50,289