Note 16 Share-Based Compensation Arrangements (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 03, 2020	Sep. 28, 2019	Sep. 29, 2018
Share-based Compensation [Line Items]
Share-based Payment Arrangement, Noncash Expense	$ 26,235	$ 30,844	$ 32,825
Stock options
Share-based Compensation [Line Items]
Share-based Payment Arrangement, Noncash Expense	(1,145)	1,250	1,779
Restricted stock units, including performance-based awards
Share-based Compensation [Line Items]
Share-based Payment Arrangement, Noncash Expense	27,380	29,594	31,046
Cost of sales
Share-based Compensation [Line Items]
Share-based Payment Arrangement, Expense	10,099	9,757	8,187
Selling, general and administrative
Share-based Compensation [Line Items]
Share-based Payment Arrangement, Expense	15,897	20,807	25,206
Research and development
Share-based Compensation [Line Items]
Share-based Payment Arrangement, Expense	$ 239	$ 280	$ (568)