Business Segments (Schedule Of Financial Information About Company's Reportable Segments) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016	Oct. 01, 2016
Segment Reporting Information [Line Items]
Net sales	$ 618,832	$ 667,616	$ 1,858,200	$ 1,902,940
Operating income (loss)	29,469	30,918	95,943	75,788
Interest expense	3,294	3,637	9,830	10,845
Interest income	(1,299)	(1,134)	(3,555)	(3,081)
Miscellaneous	(103)	297	1,147	(2,451)
Income before income taxes	27,371	28,712	90,815	65,573
Total assets	1,868,632		1,868,632		$ 1,765,819
Corporate and Eliminations [Member]
Segment Reporting Information [Line Items]
Total assets	60,918		60,918		28,416
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Net sales	(25,453)	(25,481)	(76,951)	(81,175)
Operating income (loss)	(26,966)	(27,892)	(78,786)	(77,249)
AMER | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales	265,173	359,412	851,888	994,750
Operating income (loss)	7,392	22,099	30,418	45,937
Total assets	534,870		534,870		590,850
Asia Pacific [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales	325,986	292,644	945,713	862,535
Operating income (loss)	49,811	38,283	148,535	110,097
Total assets	1,116,617		1,116,617		1,009,917
EMEA [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales	53,126	41,041	137,550	126,830
Operating income (loss)	(768)	$ (1,572)	(4,224)	$ (2,997)
Total assets	$ 156,227		$ 156,227		$ 136,636