Reportable Segments, Geographic Information and Major Customers - Schedule of Reportable Segments Information (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Dec. 29, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 30, 2017	Sep. 28, 2019	Sep. 29, 2018	Sep. 30, 2017
Net sales	$ 810,195	$ 799,644	$ 789,051	$ 765,544	$ 771,178	$ 726,385	$ 698,651	$ 677,294	$ 3,164,434	$ 2,873,508	$ 2,528,052
Operating income (loss):									142,055	118,283	129,908
Other income (expense):
Interest expense									(12,853)	(12,226)	(13,578)
Interest income									1,949	4,696	5,042
Miscellaneous, net									(5,196)	(3,143)	451
Income before income taxes									125,955	107,610	121,823
Depreciation									50,885	48,095	45,330
Capital expenditures									90,600	62,780	38,538
Total assets	2,000,883				1,932,642				2,000,883	1,932,642
Elimination of inter-segment sales
Net sales									(132,012)	(124,935)	(110,384)
Corporate
Operating income (loss):									(128,378)	(135,736)	(105,922)
Other income (expense):
Depreciation									5,344	4,863	4,581
Capital expenditures									9,501	4,149	863
Corporate and eliminations
Other income (expense):
Total assets	80,608				155,544				80,608	155,544
AMER | Operating Segments
Net sales									1,429,308	1,218,944	1,166,346
Operating income (loss):									57,780	38,637	41,924
Other income (expense):
Depreciation									22,531	21,224	19,694
Capital expenditures									42,459	17,690	18,111
Total assets	751,990				645,791				751,990	645,791
APAC | Operating Segments
Net sales									1,557,205	1,498,010	1,279,261
Operating income (loss):									208,178	213,935	200,103
Other income (expense):
Depreciation									16,905	15,954	15,588
Capital expenditures									33,454	33,018	13,816
Total assets	958,744				937,510				958,744	937,510
EMEA | Operating Segments
Net sales									309,933	281,489	192,829
Operating income (loss):									4,475	1,447	(6,197)
Other income (expense):
Depreciation									6,105	6,054	5,467
Capital expenditures									5,186	7,923	$ 5,748
Total assets	$ 209,541				$ 193,797				$ 209,541	$ 193,797