Stock Plans - Additional Information (Detail) (USD $)	12 Months Ended					12 Months Ended
	Mar. 01, 2014	Mar. 02, 2013	Mar. 03, 2012	Jul. 31, 2009 Stock Incentive Plan 2009	Jul. 31, 2009 Stock Incentive Plan 2009 All awards other than options and stock appreciation rights	Mar. 01, 2014 Restricted stock awards	Mar. 02, 2013 Restricted stock awards	Mar. 03, 2012 Restricted stock awards	Mar. 01, 2014 Restricted stock awards Employees	Mar. 01, 2014 Restricted stock awards Employees Cliff-vesting	Mar. 01, 2014 Restricted stock awards Non-employee Directors Cliff-vesting	Mar. 01, 2014 Stock Options	Mar. 02, 2013 Stock Options	Mar. 03, 2012 Stock Options	Mar. 01, 2014 Employee Stock Purchase Plan	Mar. 02, 2013 Employee Stock Purchase Plan	Mar. 03, 2012 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized				6,500,000	2,500,000										2,400,000
Share-based compensation	$ 7,068,000	$ 6,612,000	$ 5,187,000			$ 3,500,000	$ 3,800,000	$ 3,000,000				$ 3,500,000	$ 2,700,000	$ 2,100,000	$ 100,000	$ 100,000	$ 100,000
Options vesting period	4 years
Options expiration term	10 years
Estimated weighted-average fair value of individual options granted	$ 8.24	$ 9.56	$ 8.98
Total unrecognized compensation cost						7,000,000						6,400,000
Total unrecognized compensation cost, weighted average recognition period						2 years 2 months						1 year 8 months 27 days
Total intrinsic value of options exercised	8,380,000	6,400,000	14,700,000
Performance-based awards performance period									3 years
Share-based compensation vesting period									3 years	3 years	1 year
Total fair value of awards vested						$ 2,800,000
Employee Stock Purchase Plan, maximum percentage of annual compensation to acquire common stock	10.00%
Employee Stock Purchase Plan, percentage of market price to acquire common stock	85.00%
Employee Stock Purchase Plan, shares purchased	31,000	33,000	27,000
Employee Stock Purchase Plan, percentage of discount on compensation expense	15.00%