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INVESTMENT SECURITIES - OTTI Losses on Available-for-Sale Debt Securities (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract]    
Total OTTI losses $ (557) $ 0
Portion of OTTI recognized in OCI 60 (50)
Net impairment losses recognized in earnings $ (497) $ (50)