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Reconciliation of Numerators and Denominators used in Computing Earnings Per Share - Additional Information (Detail)
In Millions, unless otherwise specified
12 Months Ended
Feb. 28, 2015
Mar. 01, 2014
Mar. 02, 2013
Earnings Per Share [Abstract]      
Antidilutive shares excluded from computation of diluted earnings per share 0.6us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 1.1us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 0.9us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount