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Income Taxes - Schedule of Domestic and Foreign Components of Income (Loss) Before Income Taxes (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Oct. 01, 2016
Income Tax Disclosure [Abstract]      
U.S. $ (53,243) $ (35,209) $ (26,796)
Foreign 160,853 157,032 114,190
Income before income taxes $ 107,610 $ 121,823 $ 87,394