Note 12 Share-Based Compensation Arrangements (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Apr. 01, 2017	Mar. 31, 2018	Apr. 01, 2017
Allocation of Recognized Period Costs [Line Items]
Share-based Compensation	$ 10,295	$ 7,642	$ 18,937	$ 19,619
Stock options
Allocation of Recognized Period Costs [Line Items]
Share-based Compensation	2,566	380	3,743	930
Restricted stock units, including performance based awards
Allocation of Recognized Period Costs [Line Items]
Share-based Compensation	7,729	7,262	15,194	18,689
Cost of sales
Allocation of Recognized Period Costs [Line Items]
Allocated Share-based Compensation Expense	1,851	2,035	4,299	4,899
Selling, general and administrative
Allocation of Recognized Period Costs [Line Items]
Allocated Share-based Compensation Expense	8,388	5,376	14,552	14,216
Research and development
Allocation of Recognized Period Costs [Line Items]
Allocated Share-based Compensation Expense	$ 56	$ 231	$ 86	$ 504