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Stock-Based Compensation (Summary Of Stock-Based Compensation Expense) (Details) (USD $) In Thousands	3 Months Ended	9 Months Ended
	Oct. 02, 2011	Oct. 02, 2011
Stock-based compensation expense	$ 2,810	$ 7,165
Cost Of Revenue [Member]
Stock-based compensation expense	63	189
Selling, General And Administrative [Member]
Stock-based compensation expense	$ 2,747	$ 6,976

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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