Matters Concerning Shareholders' Equity - Additional Information (Detail) - USD ($)		3 Months Ended		6 Months Ended		12 Months Ended
	Oct. 02, 2015	Aug. 29, 2015	Aug. 30, 2014	Aug. 29, 2015	Aug. 30, 2014	Feb. 28, 2015
Share Based Compensation Arrangements and Share Repurchase Plan [Line Items]
Cost of shares repurchased				$ 50,000,000
Subsequent Event
Share Based Compensation Arrangements and Share Repurchase Plan [Line Items]
Cost of shares repurchased	$ 2,621,000
Share Repurchase Program April 2014
Share Based Compensation Arrangements and Share Repurchase Plan [Line Items]
Common stock repurchased under Share repurchase plan				4,003,198
Weighted average cost				$ 12.49
Amount remained for repurchase		$ 72,176,000		$ 72,176,000
Authorized amount for share repurchase		200,000,000		200,000,000
Cost of shares repurchased				50,000,000
Share Repurchase Program April 2014 | Subsequent Event
Share Based Compensation Arrangements and Share Repurchase Plan [Line Items]
Common stock repurchased under Share repurchase plan	375,000
Weighted average cost	$ 6.99
Amount remained for repurchase	$ 69,555,000
Restricted Stock Awards
Share Based Compensation Arrangements and Share Repurchase Plan [Line Items]
Recorded stock-based compensation expense		1,139,000	$ 2,250,000	3,359,000	$ 5,450,000
Total unrecognized compensation expense related to unvested stock option awards		26,237,000		$ 26,237,000
Weighted average period for recognizing unrecognized compensation expense, in years				2 years
Performance Shares
Share Based Compensation Arrangements and Share Repurchase Plan [Line Items]
Share-based compensation expense, adjustments		$ 1,000,000				$ 650,000