Revenue from Contracts with Customers - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 04, 2020	Jun. 29, 2019	Jul. 04, 2020	Jun. 29, 2019
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	$ 880,054	$ 832,625	$ 2,565,451	$ 2,455,655
Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	857,394	799,644	2,477,167	2,354,239
Elimination of inter-segment sales
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	22,660	32,981	88,284	101,416
Healthcare/Life Sciences | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	330,074	308,757	913,341	908,971
Industrial/Commercial | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	317,045	247,895	913,848	717,273
Aerospace/Defense | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	141,061	151,427	470,669	414,402
Communications | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	69,214	91,565	179,309	313,593
AMER
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	305,941	366,466	993,871	1,084,823
AMER | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	304,148	364,141	985,148	1,079,638
AMER | Elimination of inter-segment sales
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	1,793	2,325	8,723	5,185
AMER | Healthcare/Life Sciences | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	106,130	127,644	347,469	368,843
AMER | Industrial/Commercial | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	70,349	91,347	249,530	269,273
AMER | Aerospace/Defense | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	85,277	80,351	286,963	218,578
AMER | Communications | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	42,392	64,799	101,186	222,944
APAC
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	482,267	384,841	1,321,254	1,141,394
APAC | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	462,547	356,461	1,247,100	1,049,106
APAC | Elimination of inter-segment sales
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	19,720	28,380	74,154	92,288
APAC | Healthcare/Life Sciences | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	172,441	149,312	440,199	443,073
APAC | Industrial/Commercial | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	226,887	133,374	608,815	381,453
APAC | Aerospace/Defense | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	36,979	47,496	123,161	137,342
APAC | Communications | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	26,240	26,279	74,925	87,238
EMEA
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	91,846	81,318	250,326	229,438
EMEA | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	90,699	79,042	244,919	225,495
EMEA | Elimination of inter-segment sales
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	1,147	2,276	5,407	3,943
EMEA | Healthcare/Life Sciences | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	51,503	31,801	125,673	97,055
EMEA | Industrial/Commercial | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	19,809	23,174	55,503	66,547
EMEA | Aerospace/Defense | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	18,805	23,580	60,545	58,482
EMEA | Communications | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	$ 582	$ 487	$ 3,198	$ 3,411