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INCOME TAXES (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Income Tax Disclosure [Abstract]        
Income before income taxes $ 16,866 $ 14,481 $ 34,964 $ 30,540
Provision for income taxes $ 4,442 $ 5,331 $ 8,534 $ 11,103
Effective tax rate 26.30% 36.80% 24.40% 36.40%