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Income Taxes (Summary of Earnings Before Income Taxes, Income Tax Expense and Effective Income Tax Rate) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Apr. 01, 2016
Apr. 03, 2015
Apr. 01, 2016
Apr. 03, 2015
Income Taxes [Abstract]        
Profit (loss) before income taxes $ 14,669 $ 6,820 $ 14,150 $ (104)
Income tax expense $ 5,348 $ 3,174 $ 5,363 $ 444
Effective income tax rate 36.50% 46.50% 37.90% (426.90%)