Note 15 Share-Based Compensation Arrangements (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Oct. 01, 2016
Share-based Compensation [Line Items]
Share-based Compensation	$ 32,825	$ 37,920	$ 26,907
Stock options
Share-based Compensation [Line Items]
Share-based Compensation	1,779	1,640	3,943
Restricted stock units, including performance-based awards
Share-based Compensation [Line Items]
Share-based Compensation	31,046	36,280	22,964
Cost of sales
Share-based Compensation [Line Items]
Allocated Share-based Compensation Expense	8,187	8,959	7,350
Selling, general & administrative
Share-based Compensation [Line Items]
Allocated Share-based Compensation Expense	25,206	28,169	18,903
Research & development
Share-based Compensation [Line Items]
Allocated Share-based Compensation Expense	$ (568)	$ 792	$ 654