Reconciliation of Numerators and Denominators used in Computing Earnings Per Share (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				12 Months Ended
	Feb. 26, 2011	Nov. 27, 2010	Aug. 28, 2010	May 29, 2010	Mar. 03, 2012		Feb. 26, 2011		Feb. 27, 2010
Earnings Per Share Disclosure [Line Items]
Income from continuing operations	$ 34,257	$ 4,134	$ 16,804	$ 13,669	$ 84,804		$ 68,864		$ 50,833
Income from continuing operations attributable to participating securities					691		981		739
Income from continuing operations available to common shareholders					$ 84,113		$ 67,883		$ 50,094
Basic earnings from continuing operations per share:
Weighted-average number of common shares outstanding					52,020		52,979		54,221
Basic earnings from continuing operations per share	$ 0.64	$ 0.08	$ 0.31	$ 0.25	$ 1.62		$ 1.28		$ 0.92
Diluted earnings from continuing operations per share:
Weighted-average number of common shares outstanding					52,020		52,979		54,221
Dilutive effect of potential common shares					798	[1]	796	[1]	376	[1]
Diluted weighted-average number of common shares outstanding					52,818		53,775		54,597
Diluted earnings from continuing operations per share	$ 0.63	$ 0.08	$ 0.31	$ 0.25	$ 1.59		$ 1.26		$ 0.92

[1] The computation of diluted earnings from continuing operations per share excludes options to purchase approximately 0.4 million, 1.2 million and 1.8 million shares of common stock in 2012, 2011 and 2010, respectively, because the impact of such options would have been antidilutive.