Other Comprehensive Income (Loss) (Schedule Of Changes In Each Component Of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 30, 2017	Dec. 31, 2016
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, at period start	$ 428,777
Other comprehensive net gain (loss) reclassifications	3,812	$ (4,819)
Net (gain) loss reclassified to earnings	194	(98)
Other comprehensive income (loss)	4,006	(4,917)
Balance, at period end	461,580
Foreign Currency Translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, at period start	3,946	673
Other comprehensive net gain (loss) reclassifications	2,499	(9,802)
Net (gain) loss reclassified to earnings	0	0
Other comprehensive income (loss)	2,499	(9,802)
Balance, at period end	6,445	(9,129)
Unrealized Derivative Instrument
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, at period start	1,953	(255)
Other comprehensive net gain (loss) reclassifications	1,030	4,158
Net (gain) loss reclassified to earnings	103	(268)
Other comprehensive income (loss)	1,133	3,890
Balance, at period end	3,086	3,635
Defined Benefit Pension Plan
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, at period start	(6,452)	(10,791)
Other comprehensive net gain (loss) reclassifications	283	825
Net (gain) loss reclassified to earnings	91	170
Other comprehensive income (loss)	374	995
Balance, at period end	(6,078)	(9,796)
Other comprehensive income (loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, at period start	(553)	(10,373)
Balance, at period end	$ 3,453	$ (15,290)