Quarterly Financial Information (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended																	12 Months Ended
	Mar. 03, 2012		Nov. 26, 2011		Aug. 27, 2011		May 28, 2011		Feb. 26, 2011		Nov. 27, 2010		Aug. 28, 2010		May 29, 2010		Feb. 27, 2010	Mar. 03, 2012	Feb. 26, 2011	Feb. 27, 2010
Quarterly Financial Information [Line Items]
Net sales	$ 456,260	[1]	$ 282,011		$ 331,514		$ 299,474		$ 384,599		$ 260,935		$ 301,070		$ 282,398			$ 1,369,259	$ 1,229,002	$ 1,172,415
Cost of sales (including occupancy costs)	286,737	[1]	191,002		215,180		196,211		246,288		179,056		201,301		188,428			889,130	815,073	793,556
Gross profit	169,523	[1]	91,009		116,334		103,263		138,311		81,879		99,769		93,970			480,129	413,929	378,859
Selling, general and administrative expenses	101,811	[1]	83,067		82,076		76,675		82,883		75,278		72,778		71,779			343,629	302,718	297,323
Store closing costs	226	[1]	368		580		17		263		87							1,191	350	2,707
Impairment charges	974	[1]							1,228								6,771	974	1,228	6,771
Operating income	66,512	[1]	7,574		33,678		26,571		53,937		6,514		26,991		22,191			134,335	109,633	72,058
Interest income, net	57	[1]	109		139		142		138		151		155		64			447	508	322
Income before income taxes	66,569	[1]	7,683		33,817		26,713		54,075		6,665		27,146		22,255			134,782	110,141	72,380
Income tax expense	24,649	[1]	2,135		12,897		10,297		19,818		2,531		10,342		8,586			49,978	41,277	21,547
Income from continuing operations									34,257		4,134		16,804		13,669			84,804	68,864	50,833
(Loss) income from discontinued operations, net of income tax									(5)		(12)		10		(23)				(30)	(15,161)
Net income	$ 41,920	[1]	$ 5,548		$ 20,920		$ 16,416		$ 34,252		$ 4,122		$ 16,814		$ 13,646			$ 84,804	$ 68,834	$ 35,672
Income (loss) per basic share:
Income from continuing operations									$ 0.64		$ 0.08		$ 0.31		$ 0.25			$ 1.62	$ 1.28	$ 0.92
Loss from discontinued operations																				$ (0.27)
Net income	$ 0.81	[1],[2]	$ 0.11	[2]	$ 0.40	[2]	$ 0.31	[2]	$ 0.64	[2]	$ 0.08	[2]	$ 0.31	[2]	$ 0.25	[2]		$ 1.62	$ 1.28	$ 0.65
Income (loss) per diluted share:
Income from continuing operations									$ 0.63		$ 0.08		$ 0.31		$ 0.25			$ 1.59	$ 1.26	$ 0.92
Loss from discontinued operations																				$ (0.28)
Net income	$ 0.80	[1],[2]	$ 0.11	[2]	$ 0.39	[2]	$ 0.30	[2]	$ 0.63	[2]	$ 0.08	[2]	$ 0.31	[2]	$ 0.25	[2]		$ 1.59	$ 1.26	$ 0.64
Dividends declared per share	$ 0.06	[1]	$ 0.05		$ 0.05		$ 0.05		$ 0.05		$ 0.04		$ 0.04		$ 0.04			$ 0.21	$ 0.17	$ 0.13
Net sales, percentage	100.00%		100.00%		100.00%		100.00%		100.00%		100.00%		100.00%		100.00%
Cost of sales (including occupancy costs), percentage	62.80%		67.70%		64.90%		65.50%		64.00%		68.60%		66.90%		66.70%
Gross profit, percentage	37.20%		32.30%		35.10%		34.50%		36.00%		31.40%		33.10%		33.30%
Selling, general and administrative expenses, percentage	22.30%		29.50%		24.70%		25.60%		21.60%		28.90%		24.20%		25.40%
Store closing costs, percentage	0.10%		0.10%		0.20%				0.10%
Impairment charges, percentage	0.20%								0.30%
Operating income, percentage	14.60%		2.70%		10.20%		8.90%		14.00%		2.50%		8.90%		7.90%
Interest income, net, percentage											0.10%		0.10%
Income before income taxes, percentage	14.60%		2.70%		10.20%		8.90%		14.00%		2.60%		9.00%		7.90%
Income tax expense, percentage	5.40%		0.70%		3.90%		3.40%		5.10%		1.00%		3.40%		3.10%
Income from continuing operations, percentage									8.90%		1.60%		5.60%		4.80%
(Loss) income from discontinued operations, net of income tax, percentage
Net income, percentage	9.20%		2.00%		6.30%		5.50%		8.90%		1.60%		5.60%		4.80%

[1] The Company utilizes the retail calendar for reporting. As such, the results for 2012 represent the 53 week period ended March 3, 2012 and 2011 represent the 52 week period ended February 26, 2011. The 2012 fourth quarter consists of a 14 week period versus a 13 week period in 2011.

[2] Income (loss) per share is computed independently for each of the quarters presented. Therefore, the sum of the quarterly amounts may not equal the total for the fiscal year.