Revenue From Contracts with Customers - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Jun. 29, 2019	Jun. 29, 2019
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	$ 832,625	$ 2,455,655
Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	799,644	2,354,239
Elimination of inter-segment sales
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	32,981	101,416
Healthcare/Life Sciences | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	308,757	908,971
Industrial/Commercial | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	247,895	717,273
Aerospace/Defense | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	151,427	414,402
Communications | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	91,565	313,593
AMER
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	366,466	1,084,823
AMER | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	364,141	1,079,638
AMER | Elimination of inter-segment sales
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	2,325	5,185
AMER | Healthcare/Life Sciences | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	127,644	368,843
AMER | Industrial/Commercial | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	91,347	269,273
AMER | Aerospace/Defense | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	80,351	218,578
AMER | Communications | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	64,799	222,944
APAC
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	384,841	1,141,394
APAC | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	356,461	1,049,106
APAC | Elimination of inter-segment sales
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	28,380	92,288
APAC | Healthcare/Life Sciences | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	149,312	443,073
APAC | Industrial/Commercial | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	133,374	381,453
APAC | Aerospace/Defense | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	47,496	137,342
APAC | Communications | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	26,279	87,238
EMEA
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	81,318	229,438
EMEA | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	79,042	225,495
EMEA | Elimination of inter-segment sales
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	2,276	3,943
EMEA | Healthcare/Life Sciences | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	31,801	97,055
EMEA | Industrial/Commercial | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	23,174	66,547
EMEA | Aerospace/Defense | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	23,580	58,482
EMEA | Communications | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	$ 487	$ 3,411