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Stock-Based Compensation (Details 1) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jul. 01, 2012	Jul. 03, 2011
Cash proceeds and intrinsic value related to total stock options exercised
Proceeds from stock options exercised	$ 131	$ 2,579
Intrinsic value of stock options exercised	$ 179	$ 5,819

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Aggregate proceeds received by the entity during the annual period from exercises of stock or unit options and conversion of similar instruments granted under equity-based payment arrangements.

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Value of stock issued as a result of the exercise of stock options.

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