Revenue from Contracts with Customers - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Jan. 04, 2020	Dec. 29, 2018
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	$ 889,095	$ 804,277
Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	852,409	765,544
Elimination of inter-segment sales
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	36,686	38,733
Healthcare/Life Sciences | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	312,287	300,578
Industrial/Commercial | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	310,000	219,142
Aerospace/Defense | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	172,122	122,465
Communications | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	58,000	123,359
AMER
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	353,476	353,867
AMER | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	349,572	352,320
AMER | Elimination of inter-segment sales
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	3,904	1,547
AMER | Healthcare/Life Sciences | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	124,196	115,765
AMER | Industrial/Commercial | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	91,921	83,718
AMER | Aerospace/Defense | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	105,489	62,373
AMER | Communications | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	27,966	90,464
APAC
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	451,142	378,112
APAC | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	421,011	341,446
APAC | Elimination of inter-segment sales
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	30,131	36,666
APAC | Healthcare/Life Sciences | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	149,725	152,106
APAC | Industrial/Commercial | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	199,346	116,271
APAC | Aerospace/Defense | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	43,249	42,094
APAC | Communications | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	28,691	30,975
EMEA
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	84,477	72,298
EMEA | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	81,826	71,778
EMEA | Elimination of inter-segment sales
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	2,651	520
EMEA | Healthcare/Life Sciences | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	38,366	32,707
EMEA | Industrial/Commercial | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	18,733	19,153
EMEA | Aerospace/Defense | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	23,384	17,998
EMEA | Communications | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	$ 1,343	$ 1,920