Note 11 Share-Based Compensation Arrangements (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 01, 2017	Apr. 02, 2016	Apr. 01, 2017	Apr. 02, 2016
Allocation of Recognized Period Costs [Line Items]
Share-based Compensation	$ 7,642	$ 8,485	$ 19,619	$ 12,537
Stock options
Allocation of Recognized Period Costs [Line Items]
Share-based Compensation	380	1,243	930	2,483
Restricted stock units, including performance based awards
Allocation of Recognized Period Costs [Line Items]
Share-based Compensation	7,262	7,242	18,689	10,054
Cost of sales
Allocation of Recognized Period Costs [Line Items]
Allocated Share-based Compensation Expense	2,035	1,932	4,899	3,337
Selling, general and administrative
Allocation of Recognized Period Costs [Line Items]
Allocated Share-based Compensation Expense	5,376	6,422	14,216	8,988
Research and development
Allocation of Recognized Period Costs [Line Items]
Allocated Share-based Compensation Expense	$ 231	$ 131	$ 504	$ 212