Note 11 Revenue and Gross Profit by Segment (Details) $ in Thousands		3 Months Ended		9 Months Ended
		Jun. 27, 2020 USD ($)	Jun. 29, 2019 USD ($)	Jun. 27, 2020 USD ($)	Jun. 29, 2019 USD ($)
Segment Reporting Information [Line Items]
Net sales		$ 1,654,691	$ 2,026,995	$ 5,085,412	$ 6,341,652
Gross profit		131,473	147,795	$ 373,776	450,234
Number of Reportable Segments				1
Operating Segments
Segment Reporting Information [Line Items]
Gross profit		134,575	149,720	$ 382,372	456,024
Operating Segments | IMS
Segment Reporting Information [Line Items]
Net sales		1,348,308	1,720,028	4,192,567	5,306,329
Gross profit		94,250	109,318	270,867	334,811
Operating Segments | CPS
Segment Reporting Information [Line Items]
Net sales		336,581	362,078	1,000,335	1,212,866
Gross profit		40,325	40,402	111,505	121,213
Intersegment revenue
Segment Reporting Information [Line Items]
Net sales		(30,198)	(55,111)	(107,490)	(177,543)
Unallocated items
Segment Reporting Information [Line Items]
Gross profit	[1]	$ (3,102)	$ (1,925)	$ (8,596)	$ (5,790)

[1] For purposes of evaluating segment performance, management excludes certain items from its measure of gross profit. These items consist of stock-based compensation expense, amortization of intangible assets and charges or credits resulting from distressed customers.