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LOANS (Accretable yield activity) (Detail) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Jan. 01, 2018
Sep. 30, 2019
Dec. 31, 2018
Activity for the accretable yield since the Acquisition Date:      
Accretable yield at the beginning of the period $ 0 $ 1,279 $ 0
Addition of accretable yield due to acquisitions $ 4,000 0 3,988
Accretion into interest income   (869) (1,860)
Disposals (including maturities, foreclosures, and charge-offs)   (199) (849)
Accretable yield at the end of the period   $ 211 $ 1,279