Other Comprehensive Income (Loss) (Schedule Of Other Comprehensive Income (Loss)) Allocated To Each Component Of Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Oct. 01, 2016
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Other Comprehensive Income (Loss), before Tax [Abstract]
Other comprehensive income (loss), before reclassifications, before tax	$ (2,174)	$ 3,273	$ (332)
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Other comprehensive income (loss), before reclassifications, net of tax	(2,174)	3,273	(332)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Other Comprehensive Income (Loss), before Tax [Abstract]
Other comprehensive income (loss), before reclassifications, before tax	5,832	3,301	(1,342)
Reclassification from accumulated other comprehensive income, current period, before tax	(805)	155	334
Other Comprehensive Income (Loss), Tax [Abstract]
Other comprehensive income (loss) before reclassifications, tax	(1,507)	(1,191)	487
Reclassification from AOCI, current period, tax	207	(57)	(120)
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Other comprehensive income (loss), before reclassifications, net of tax	4,325	2,110	(855)
Reclassification from accumulated other comprehensive income, current period, net of tax	(598)	98	214
Accumulated Defined Benefit Plans Adjustment [Member]
Other Comprehensive Income (Loss), before Tax [Abstract]
Other comprehensive income (loss), before reclassifications, before tax	(890)	5,918	(6,034)
Reclassification from accumulated other comprehensive income, current period, before tax	526	996	584
Other Comprehensive Income (Loss), Tax [Abstract]
Other comprehensive income (loss) before reclassifications, tax	269	(1,786)	1,821
Reclassification from AOCI, current period, tax	(159)	(300)	(176)
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Other comprehensive income (loss), before reclassifications, net of tax	(621)	4,132	(4,213)
Reclassification from accumulated other comprehensive income, current period, net of tax	367	696	408
Accumulated Defined Benefit Plans Adjustment, Currency Exchange Gain (Loss), Attributable to Parent [Member]
Other Comprehensive Income (Loss), before Tax [Abstract]
Other comprehensive income (loss), before reclassifications, before tax	90	(489)	(18)
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Other comprehensive income (loss), before reclassifications, net of tax	90	(489)	(18)
AOCI Attributable to Parent [Member]
Other Comprehensive Income (Loss), before Tax [Abstract]
Other comprehensive income (loss), before tax	2,579	13,154	(6,808)
Other Comprehensive Income (Loss), Tax [Abstract]
Other comprehensive income (loss), tax	(1,190)	(3,334)	2,012
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Other comprehensive income (loss), net of tax	$ 1,389	$ 9,820	$ (4,796)