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INCOME TAXES (Details) - Components of Income before taxes and discontinued operations - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2016
Income Tax Disclosure [Abstract]      
Domestic $ 4,942 $ (1,339) $ 23,163
Non-U.S. 28,868 18,037 9,050
Income (loss) before taxes from continuing operations $ 33,810 $ 16,698 $ 32,213