Calculation of Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 29, 2015	Aug. 30, 2014	Aug. 29, 2015	Aug. 30, 2014
Earnings Per Share Disclosure [Line Items]
Net income	$ 3,166	$ 9,158	$ 10,040	$ 24,213
Basic	86,038	91,503	87,167	93,080
Diluted	86,717	92,531	87,869	94,228
Basic	$ 0.04	$ 0.10	$ 0.12	$ 0.26
Diluted	$ 0.04	$ 0.10	$ 0.11	$ 0.26
Employee Stock Option
Earnings Per Share Disclosure [Line Items]
Effect of dilutive stock	500	713	534	765
Restricted Stock Awards
Earnings Per Share Disclosure [Line Items]
Effect of dilutive stock	179	315	168	383