Note 11 Revenue and Gross Profit by Segment (Details) $ in Thousands		3 Months Ended		6 Months Ended
		Apr. 03, 2021 USD ($)	Mar. 28, 2020 USD ($)	Apr. 03, 2021 USD ($)	Mar. 28, 2020 USD ($)
Segment Reporting Information [Line Items]
Net sales		$ 1,699,677	$ 1,590,550	$ 3,454,926	$ 3,430,721
Gross profit		143,098	107,421	$ 284,333	242,303
Number of Reportable Segments				1
Operating Segments
Segment Reporting Information [Line Items]
Gross profit		146,431	110,003	$ 292,635	247,797
Operating Segments | IMS
Segment Reporting Information [Line Items]
Net sales		1,369,937	1,305,887	2,832,037	2,854,780
Gross profit		95,030	75,421	201,596	176,627
Operating Segments | CPS
Segment Reporting Information [Line Items]
Net sales		361,072	321,509	680,488	652,684
Gross profit		51,401	34,582	91,039	71,170
Intersegment revenue
Segment Reporting Information [Line Items]
Net sales		(31,332)	(36,846)	(57,599)	(76,743)
Unallocated items
Segment Reporting Information [Line Items]
Gross profit	[1]	$ (3,333)	$ (2,582)	$ (8,302)	$ (5,494)

[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, charges or credits resulting from distressed customers and litigation settlements.