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INVESTMENTS (Other Equity Securities) (Detail) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Federal Home Loan Bank Stock and Federal Reserve Bank Stock [Abstract]    
Federal Reserve Bank stock $ 22,496 $ 22,456
Federal Home Loan Bank of Atlanta stock 38,273 50,933
Total equity securities $ 60,769 $ 73,389