Stock-Based Compensation (Summary Of Option Activity) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	9 Months Ended	12 Months Ended
	Nov. 25, 2012	Feb. 26, 2012
Stock-Based Compensation [Abstract]
Options, Outstanding at February 26, 2012	915,951
Options, Granted	205,520
Options, Exercised	(6,587)
Options, Terminated or expired	(91,763)
Options, Outstanding at November 25, 2012	1,023,121	915,951
Options, Exercisable at November 25, 2012	642,795
Weighted Average Exercise Price, Outstanding at February 26, 2012	$ 25.40
Weighted Average Exercise Price, Granted	$ 25.60
Weighted Average Exercise Price, Exercised	$ 25.20
Weighted Average Exercise Price, Terminated or expired	$ 25.96
Weighted Average Exercise Price, Outstanding at November 25, 2012	$ 25.39	$ 25.40
Weighted Average Exercise Price, Exercisable at November 25, 2012	$ 25.76
Weighted Average Remaining Contract Life in Months, Outstanding at February 26, 2012	74 months 21 days	70 months 30 days
Weighted Average Remaining Contract Life in Months, Outstanding at November 25, 2012	74 months 21 days	70 months 30 days
Weighted Average Remaining Contract Life in Months, Exercisable at November 25, 2012	53 months 14 days
Aggregate Intrinsic Value, Outstanding at February 26, 2012	$ 4,338
Aggregate Intrinsic Value, Outstanding at November 25, 2012	486	4,338
Aggregate Intrinsic Value, Exercisable at November 25, 2012	$ 276