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Note 11 Share-Based Compensation Arrangements (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 29, 2012	Dec. 31, 2011
Allocation of Recognized Period Costs [Line Items]
Share-based Compensation	$ 4,666	$ 4,064
Stock options
Allocation of Recognized Period Costs [Line Items]
Compensation Cost By Award Type	2,617	2,455
Restricted stock units
Allocation of Recognized Period Costs [Line Items]
Compensation Cost By Award Type	2,049	1,609
Cost of sales
Allocation of Recognized Period Costs [Line Items]
Allocated Share-based Compensation Expense	1,340	907
Selling, general and administrative
Allocation of Recognized Period Costs [Line Items]
Allocated Share-based Compensation Expense	3,295	3,130
Research and development
Allocation of Recognized Period Costs [Line Items]
Allocated Share-based Compensation Expense	$ 31	$ 27

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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