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LOANS HELD FOR INVESTMENT - Breakdown Between Accrual and Nonaccrual Status of TDRs (Parenthetical) (Detail) - USD ($)
$ in Millions
Mar. 31, 2022
Dec. 31, 2021
TDR    
Financing Receivable Modifications [Line Items]    
Financing receivable modifications recorded investment of loan forced to nonaccrual status $ 14.3 $ 13.5