Note 11 Share-Based Compensation Arrangements (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 30, 2013	Mar. 31, 2012	Mar. 30, 2013	Mar. 31, 2012
Allocation of Recognized Period Costs [Line Items]
Share-based Compensation	$ 4,342	$ 4,529	$ 9,008	$ 8,593
Stock options
Allocation of Recognized Period Costs [Line Items]
Share-based Compensation	2,757	2,547	5,374	5,002
Restricted stock units
Allocation of Recognized Period Costs [Line Items]
Share-based Compensation	1,585	1,982	3,634	3,591
Cost of sales
Allocation of Recognized Period Costs [Line Items]
Allocated Share-based Compensation Expense	1,291	983	2,631	1,890
Selling, general and administrative
Allocation of Recognized Period Costs [Line Items]
Allocated Share-based Compensation Expense	3,004	3,519	6,299	6,649
Research and development
Allocation of Recognized Period Costs [Line Items]
Allocated Share-based Compensation Expense	$ 47	$ 27	$ 78	$ 54