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INCOME TAXES (Provision for income taxes and the effective tax rate) (Details) - USD ($)
$ in Thousands
3 Months Ended
Dec. 31, 2016
Jan. 02, 2016
Income Tax Disclosure [Abstract]    
Income (loss) from operations before income taxes $ 18,191 $ (1,356)
Income tax expense / (benefit) 2,608 (1,265)
Net income / (loss) $ 15,583 $ (91)
Effective tax rate 14.30% (93.30%)