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INCOME TAXES (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
INCOME TAXES        
Tax expense $ 2,486 $ 1,895 $ 8,097 $ 6,691
Effective tax rate (as a percent)     22.70% 23.30%
Federal statutory rate     21.00% 21.00%