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Stock-Based Compensation (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 02, 2012	Sep. 27, 2011	Oct. 02, 2012	Sep. 27, 2011
Stock-based compensation
Total stock-based compensation	$ 2,153	$ 2,851	$ 8,427	$ 8,797
Income tax benefit	823	1,091	3,223	3,365
Total stock-based compensation, net of taxes	1,330	1,760	5,204	5,432
Capitalized stock-based compensation	56	76	206	206
Labor expenses
Stock-based compensation
Total stock-based compensation	932	993	2,765	3,072
Other operating costs and expenses
Stock-based compensation
Total stock-based compensation	47	44	142	135
General and administrative expenses
Stock-based compensation
Total stock-based compensation	$ 1,174	$ 1,814	$ 5,520	$ 5,590

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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