Note 13 Share-Based Compensation Arrangements (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 29, 2018	Dec. 30, 2017
Allocation of Recognized Period Costs [Line Items]
Share-based Compensation	$ 5,816	$ 8,642
Employee Stock Option [Member]
Allocation of Recognized Period Costs [Line Items]
Share-based Compensation	93	1,177
Restricted stock units, including performance based awards
Allocation of Recognized Period Costs [Line Items]
Share-based Compensation	5,723	7,465
Cost of sales
Allocation of Recognized Period Costs [Line Items]
Allocated Share-based Compensation Expense	1,735	2,448
Selling, general and administrative
Allocation of Recognized Period Costs [Line Items]
Allocated Share-based Compensation Expense	3,990	6,164
Research and development
Allocation of Recognized Period Costs [Line Items]
Allocated Share-based Compensation Expense	$ 91	$ 30