Accumulated Other Comprehensive Income (Loss) (Changes in AOCI by Component) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated foreign currency translation at beginning of period			$ (110,626)
Other comprehensive income (loss) before reclassifications - Foreign currency translation			4,832
Amounts reclassified from AOCIL - Foreign currency translation			(841)
Other comprehensive income (loss) - Foreign currency translation			3,991
Accumulated foreign currency translation at end of period	$ (106,635)		(106,635)
Accumulated retirement liability at beginning of period			(321,094)
Other comprehensive income (loss) before reclassifications - Retirement liability			(312)
Amounts reclassified from AOCIL - Retirement liability	5,910	$ 4,514	17,921	$ 13,438
Other comprehensive income (loss) retirement liability	3,566	5,313	17,609	14,396
Accumulated retirement liability at end of period	(303,485)		(303,485)
Accumulated loss on derivatives at beginning of period			(3,341)
Other comprehensive income (loss) before reclassification - Derivatives	(6)	(2,829)	(976)	(3,130)
Amounts reclassified from AOCIL - Derivatives	1,019	502	3,809	1,734
Other comprehensive income (loss) - Derivatives	1,013	(2,327)	2,833	(1,396)
Accumulated loss on derivatives at end of period	(508)		(508)
Accumulated other comprehensive loss at beginning of period			(435,061)
Other comprehensive income (loss) before reclassifications - Total			3,544
Amounts reclassified from AOCIL - Total			20,889
Other comprehensive income (loss), net of tax	37,384	$ (22,453)	24,433	$ (20,683)
Accumulated other comprehensive loss at end of period	$ (410,628)		$ (410,628)