Note 10 Segment Reporting by Geographic Segment (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2018 USD ($)	Apr. 01, 2017 USD ($)	Mar. 31, 2018 USD ($)	Apr. 01, 2017 USD ($)
Revenue from External Customer [Line Items]
Net sales	$ 1,675,629	$ 1,682,262	$ 3,420,429	$ 3,402,239
Percentage of net sales represented by ten largest customers	53.00%	54.00%	54.00%	53.00%
Number of customers representing 10% or more of net sales	1	2	2	2
United States
Revenue from External Customer [Line Items]
Net sales	$ 321,337	$ 303,514	$ 636,145	$ 603,390
Mexico
Revenue from External Customer [Line Items]
Net sales	494,760	469,572	983,994	943,732
China
Revenue from External Customer [Line Items]
Net sales	265,913	313,740	581,005	635,479
Malaysia
Revenue from External Customer [Line Items]
Net sales	150,638	194,467	336,350	405,658
Other international
Revenue from External Customer [Line Items]
Net sales	$ 442,981	$ 400,969	$ 882,935	$ 813,980