Other Comprehensive Income (Loss) (Schedule Of Changes In Each Component Of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 29, 2018	Dec. 30, 2017
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at the beginning of the year	$ 477,932	$ 428,777
Other comprehensive net gain (loss) reclassifications	(4,349)	3,812
Net (gain) loss reclassified to earnings	(818)	194
Other comprehensive income (loss)	(5,167)	4,006
Balance at the end of the year	473,335	461,580
Foreign Currency Translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at the beginning of the year	1,772	3,946
Other comprehensive net gain (loss) reclassifications	(1,503)	2,499
Net (gain) loss reclassified to earnings	0	0
Other comprehensive income (loss)	(1,503)	2,499
Balance at the end of the year	269	6,445
Unrealized Derivative Instrument
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at the beginning of the year	6,320	1,953
Other comprehensive net gain (loss) reclassifications	(1,416)	1,030
Net (gain) loss reclassified to earnings	(914)	103
Other comprehensive income (loss)	(2,330)	1,133
Balance at the end of the year	3,990	3,086
Defined Benefit Pension Plan
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at the beginning of the year	(6,616)	(6,452)
Other comprehensive net gain (loss) reclassifications	(1,430)	283
Net (gain) loss reclassified to earnings	96	91
Other comprehensive income (loss)	(1,334)	374
Balance at the end of the year	(7,950)	(6,078)
Other comprehensive income (loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at the beginning of the year	1,476	(553)
Balance at the end of the year	$ (3,691)	$ 3,453