Note 9 Revenue and Gross Profit by Segment (Details) $ in Thousands		3 Months Ended		6 Months Ended
		Apr. 02, 2016 USD ($)	Mar. 28, 2015 USD ($)	Apr. 02, 2016 USD ($)	Mar. 28, 2015 USD ($)
Segment Reporting Information [Line Items]
Gross profit		$ 136,712	$ 115,263	$ 260,350	$ 241,609
Number of Reportable Segments				1	1
Operating Segments
Segment Reporting Information [Line Items]
Gross profit		132,288	117,214	$ 257,999	$ 249,688
Operating Segments | IMS
Segment Reporting Information [Line Items]
Revenues		1,314,504	1,228,682	2,553,772	2,605,516
Gross profit		96,841	81,836	192,450	182,743
Operating Segments | CPS
Segment Reporting Information [Line Items]
Revenues		343,337	340,948	688,985	693,285
Gross profit		35,447	35,378	65,549	66,945
Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues		(46,667)	(42,100)	(96,869)	(100,109)
Unallocated items (1)
Segment Reporting Information [Line Items]
Gross profit	[1]	$ 4,424	$ (1,951)	$ 2,351	$ (8,079)

[1] For purposes of evaluating segment performance, management excludes certain items from its measures of gross profit. These items include stock-based compensation expense, amortization of intangible assets, charges or credits resulting from distressed customers, acquisition-related items and similar items that either occur infrequently or are of a non-operational nature.