Note 8 Revenue and Gross Profit by Segment (Details) $ in Thousands		3 Months Ended
		Dec. 31, 2016 USD ($)	Jan. 02, 2016 USD ($)
Segment Reporting Information [Line Items]
Gross profit		$ 132,162	$ 123,638
Number of Reportable Segments		1	1
Operating Segments
Segment Reporting Information [Line Items]
Gross profit		$ 135,926	$ 125,711
Operating Segments | IMS
Segment Reporting Information [Line Items]
Revenues		1,414,270	1,239,268
Gross profit		102,637	95,609
Operating Segments | CPS
Segment Reporting Information [Line Items]
Revenues		351,074	345,648
Gross profit		33,289	30,102
Intersegment revenue
Segment Reporting Information [Line Items]
Revenues		(45,367)	(50,202)
Unallocated items (1)
Segment Reporting Information [Line Items]
Gross profit	[1]	$ (3,764)	$ (2,073)

[1] For purposes of evaluating segment performance, management excludes certain items from its measures 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