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ADVANCES FROM THE FEDERAL HOME LOAN BANK (FHLB) - Advances from FHLB Mature (Detail) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Advances from Federal Home Loan Banks [Abstract]    
Over three to six months $ 205,000  
Over six months to one year 45,000  
Over one to three years 290,000  
Over three to four years 200,000  
Total Federal Home Loan Bank Advances $ 740,000 $ 740,000