Note 13 Share-Based Compensation Arrangements (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 30, 2019	Mar. 31, 2018	Mar. 30, 2019	Mar. 31, 2018
Allocation of Recognized Period Costs [Line Items]
Share-based Compensation	$ 6,626	$ 10,295	$ 12,442	$ 18,937
Employee Stock Option [Member]
Allocation of Recognized Period Costs [Line Items]
Share-based Compensation	6	2,566	99	3,743
Restricted stock units, including performance based awards
Allocation of Recognized Period Costs [Line Items]
Share-based Compensation	6,620	7,729	12,343	15,194
Cost of sales
Allocation of Recognized Period Costs [Line Items]
Allocated Share-based Compensation Expense	2,582	1,851	4,317	4,299
Selling, general and administrative
Allocation of Recognized Period Costs [Line Items]
Allocated Share-based Compensation Expense	3,939	8,388	7,929	14,552
Research and development
Allocation of Recognized Period Costs [Line Items]
Allocated Share-based Compensation Expense	$ 105	$ 56	$ 196	$ 86