Note 10 Revenue and Gross Profit by Segment (Details) $ in Thousands		3 Months Ended		9 Months Ended
		Jun. 30, 2018 USD ($)	Jul. 01, 2017 USD ($)	Jun. 30, 2018 USD ($)	Jul. 01, 2017 USD ($)
Segment Reporting Information [Line Items]
Net sales		$ 1,813,366	$ 1,711,377	$ 5,233,795	$ 5,113,616
Gross profit		118,536	130,688	$ 342,700	396,060
Number of Reportable Segments				1
Operating Segments
Segment Reporting Information [Line Items]
Gross profit		116,681	133,070	$ 346,452	405,143
Operating Segments | IMS
Segment Reporting Information [Line Items]
Net sales		1,490,069	1,408,442	4,293,497	4,205,149
Gross profit		85,381	106,841	253,914	310,122
Operating Segments | CPS
Segment Reporting Information [Line Items]
Net sales		374,642	356,998	1,077,103	1,057,709
Gross profit		31,300	26,229	92,538	95,021
Intersegment Eliminations
Segment Reporting Information [Line Items]
Net sales		(51,345)	(54,063)	(136,805)	(149,242)
Unallocated items (1)
Segment Reporting Information [Line Items]
Gross profit	[1]	$ 1,855	$ (2,382)	$ (3,752)	$ (9,083)

[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, charges or credits resulting from distressed customers and acquisition-related items.