Accumulated Other Comprehensive Income (Reclassifications Out of AOCI) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 01, 2016	Apr. 03, 2015	Apr. 01, 2016	Apr. 03, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income tax expense (benefit)	$ (5,348)	$ (3,174)	$ (5,363)	$ (444)
Net income (loss)	9,321	3,646	8,787	(548)
Unamortized Loss On Defined Benefit Pension Plans [Member] | Reclassification Out Of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of Sales / Operating Expense	156	85	311	170
Income tax expense (benefit)	(59)	(98)	(118)	(98)
Net income (loss)	$ 97	$ (13)	$ 193	$ 72