Note 11 Segment Reporting by Geographic Segment (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 30, 2019 USD ($)	Mar. 31, 2018 USD ($)	Mar. 30, 2019 USD ($)	Mar. 31, 2018 USD ($)
Revenue from External Customer [Line Items]
Net sales	$ 2,126,639	$ 1,675,629	$ 4,314,657	$ 3,420,429
Percentage of net sales represented by ten largest customers	55.00%	53.00%	54.00%	54.00%
Number of customers representing 10% or more of net sales	1	1	1	2
United States
Revenue from External Customer [Line Items]
Net sales	$ 400,888	$ 321,337	$ 855,659	$ 636,145
Mexico
Revenue from External Customer [Line Items]
Net sales	661,010	494,760	1,323,158	983,994
China
Revenue from External Customer [Line Items]
Net sales	413,304	265,913	846,726	581,005
Malaysia
Revenue from External Customer [Line Items]
Net sales	87,588	150,638	210,493	336,350
Other International
Revenue from External Customer [Line Items]
Net sales	$ 563,849	$ 442,981	$ 1,078,621	$ 882,935