Stock-Based Compensation (Tables)

6 Months Ended

Jun. 18, 2011

Stock-Based Compensation [Abstract]

Weighted-average assumptions to estimates the fair value of stock options granted

	12 Weeks Ended						24 Weeks Ended
	June 18,			June 19,			June 18,			June 19,
	2011			2010			2011			2010
Expected market price volatility (1)		38.5	%		37.2	%		38.6	%		37.9	%
Risk-free interest rate (2)		1.6	%		2.1	%		1.8	%		1.9	%
Dividend yield (3)		1.6	%		1.7	%		1.6	%		1.9	%
Expected term (4)	4 years			4 years			4 years			4 years

(1)	Based on historical volatility of the Company’s common stock. The expected volatility is based on the daily percentage change in the price of the stock over the four years prior to the grant.
(2)	Represents the U.S. Treasury yield curve in effect for the expected term of the option at the time of grant.
(3)	Represents the Company’s cash dividend yield for the expected term.
(4)	Represents the period of time that options granted are expected to be outstanding. As part of the determination of the expected term, the Company concluded that all employee groups exhibit similar exercise and post-vesting termination behavior.