Note 11 Revenue and Gross Profit by Segment (Details) $ in Thousands		3 Months Ended
		Dec. 29, 2018 USD ($)	Dec. 30, 2017 USD ($)
Segment Reporting Information [Line Items]
Net sales		$ 2,188,018	$ 1,744,800
Gross profit		$ 149,337	109,466
Number of Reportable Segments		1
Operating Segments
Segment Reporting Information [Line Items]
Gross profit		$ 151,175	112,483
Operating Segments | IMS
Segment Reporting Information [Line Items]
Net sales		1,793,182	1,428,847
Gross profit		110,656	82,617
Operating Segments | CPS
Segment Reporting Information [Line Items]
Net sales		455,803	356,729
Gross profit		40,519	29,866
Intersegment revenue
Segment Reporting Information [Line Items]
Net sales		(60,967)	(40,776)
Unallocated items
Segment Reporting Information [Line Items]
Gross profit	[1]	$ (1,838)	$ (3,017)

[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.