Other Comprehensive Income (Details) - Reclassification out of Accumulated Other Comprehensive Income - Accumulated Defined Benefit Plans Adjustment - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jul. 01, 2016	Jun. 30, 2017	Jul. 01, 2016
Amortization of Defined Benefit Items:
Actuarial losses	$ (3,770)	$ (2,097)	$ (10,858)	$ (10,866)
Prior service cost	80	61	235	182
Total Before Income Tax	(3,690)	(2,036)	(10,623)	(10,684)
Income Tax Benefit	837	572	2,440	2,634
Total reclassifications, after-tax	$ (2,853)	$ (1,464)	$ (8,183)	$ (8,050)