Note 11 Revenue and Gross Profit by Segment (Details) $ in Thousands		3 Months Ended		9 Months Ended
		Jun. 29, 2019 USD ($)	Jun. 30, 2018 USD ($)	Jun. 29, 2019 USD ($)	Jun. 30, 2018 USD ($)
Segment Reporting Information [Line Items]
Net sales		$ 2,026,995	$ 1,813,366	$ 6,341,652	$ 5,233,795
Gross profit		147,795	118,536	$ 450,234	342,700
Number of Reportable Segments				1
Operating Segments
Segment Reporting Information [Line Items]
Gross profit		149,720	116,681	$ 456,024	346,452
Operating Segments | IMS
Segment Reporting Information [Line Items]
Net sales		1,720,028	1,490,069	5,306,329	4,293,497
Gross profit		109,318	85,381	334,811	253,914
Operating Segments | CPS
Segment Reporting Information [Line Items]
Net sales		362,078	374,642	1,212,866	1,077,103
Gross profit		40,402	31,300	121,213	92,538
Intersegment revenue
Segment Reporting Information [Line Items]
Net sales		(55,111)	(51,345)	(177,543)	(136,805)
Unallocated items
Segment Reporting Information [Line Items]
Gross profit	[1]	$ (1,925)	$ 1,855	$ (5,790)	$ (3,752)

[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.