Consolidated Statements of Stockholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Stockholders' Equity, Value at Period Start at Jan. 31, 2009	$ 321,813	$ 182	$ 82,951	$ 238,668	$ 12
Shares, Outstanding Period Start at Jan. 31, 2009		27,436,466
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	71,155			71,155
Adjustment to Minimum Pension Liability, Net of Tax	43				43
Comprehensive Income	71,198
Issuance of Commom Stock Pursuant to Equity Compensation Plans, Shares		90,278
Issuance of Common Stock Pursuant to Equity Compensation Plans, Value	234	1	233
Income Tax Benefit from Stock Compensation Plans	65		65
Stockholders' Equity, Value at Period End at Jan. 30, 2010	393,310	183	83,249	309,823	55
Shares, Outstanding Period End at Jan. 30, 2010		27,526,744
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	85,799			85,799
Adjustment to Minimum Pension Liability, Net of Tax	23				23
Comprehensive Income	85,822
Stock Dividend Transfer of Par Value	0	91		(91)
Fractional Share Payments, Shares		(542)
Fractional Share Payments, Value	(21)		(21)
Equity Compensation	1,252		1,252
Issuance of Commom Stock Pursuant to Equity Compensation Plans, Shares		95,852
Issuance of Common Stock Pursuant to Equity Compensation Plans, Value	1,013	1	1,012
Income Tax Benefit from Stock Compensation Plans	1,300		1,300
Stockholders' Equity, Value at Period End at Jan. 29, 2011	482,676	275	86,792	395,531	78
Shares, Outstanding Period End at Jan. 29, 2011		27,622,054
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	97,491			97,491
Adjustment to Minimum Pension Liability, Net of Tax	(209)				(209)
Comprehensive Income	97,282
Equity Compensation	2,547		2,547
Issuance of Commom Stock Pursuant to Equity Compensation Plans, Shares		205,783
Issuance of Common Stock Pursuant to Equity Compensation Plans, Value	546	2	544
Income Tax Benefit from Stock Compensation Plans	1,883		1,883
Stockholders' Equity, Value at Period End at Jan. 28, 2012	$ 584,934	$ 277	$ 91,766	$ 493,022	$ (131)
Shares, Outstanding Period End at Jan. 28, 2012		27,827,837