Reportable Segments - Schedule of Reportable Segments Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Jan. 04, 2020	Dec. 29, 2018	Sep. 28, 2019
Net sales	$ 852,409	$ 765,544
Operating income (loss):	39,934	36,951
Interest expense	(4,132)	(2,249)
Interest income	645	525
Miscellaneous, net	(2,173)	(1,112)
Income before income taxes	34,274	34,115
Total assets	2,110,104		$ 2,000,883
Elimination of inter-segment sales
Net sales	(36,686)	(38,733)
Corporate
Operating income (loss):	(34,427)	(30,306)
Corporate and eliminations
Total assets	95,102		80,608
AMER | Operating Segments
Net sales	353,476	353,867
Operating income (loss):	12,297	14,450
Total assets	789,067		751,990
APAC | Operating Segments
Net sales	451,142	378,112
Operating income (loss):	62,378	51,811
Total assets	993,354		958,744
EMEA | Operating Segments
Net sales	84,477	72,298
Operating income (loss):	(314)	$ 996
Total assets	$ 232,581		$ 209,541