CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss
BALANCE (shares) at Feb. 02, 2013		48,059,269
BALANCE at Feb. 02, 2013	$ 289,649	$ 481	$ 117,391	$ 172,711	$ (934)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	162,584			162,584
Dividends paid on common stock	(97,144)			(97,144)
Common stock issued on exercise of stock options (shares)		25,555
Issuance of non-vested stock, net of forfeitures (shares)		251,568
Issuance of non-vested stock, net of forfeitures		$ 2	(2)
Amortization of non-vested stock grants, net of forfeitures	5,066		5,066
Income tax benefit related to exercise of stock options and vesting of restricted shares	1,679		1,679
Change in unrealized loss on investments, net of tax	96				96
BALANCE (shares) at Feb. 01, 2014		48,336,392
BALANCE at Feb. 01, 2014	361,930	$ 483	124,134	238,151	(838)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	162,564			162,564
Dividends paid on common stock	(176,604)			(176,604)
Common stock issued on exercise of stock options (shares)		17,091
Common stock issued on exercise of stock options	70		70
Issuance of non-vested stock, net of forfeitures (shares)		26,130
Issuance of non-vested stock, net of forfeitures		$ 1	(1)
Amortization of non-vested stock grants, net of forfeitures	6,013		6,013
Income tax benefit related to exercise of stock options and vesting of restricted shares	896		896
Change in unrealized loss on investments, net of tax	409				409
BALANCE (shares) at Jan. 31, 2015		48,379,613
BALANCE at Jan. 31, 2015	355,278	$ 484	131,112	224,111	(429)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	147,283			147,283
Dividends paid on common stock	(93,768)			(93,768)
Issuance of non-vested stock, net of forfeitures (shares)		152,190
Issuance of non-vested stock, net of forfeitures		$ 1	(1)
Amortization of non-vested stock grants, net of forfeitures	6,197		6,197
Income tax benefit related to exercise of stock options and vesting of restricted shares	774		774
Common stock purchased and retired (shares)		(103,693)
Common stock purchased and retired	(3,219)	$ (1)	(3,218)
Change in unrealized loss on investments, net of tax	98				98
BALANCE (shares) at Jan. 30, 2016		48,428,110
BALANCE at Jan. 30, 2016	$ 412,643	$ 484	$ 134,864	$ 277,626	$ (331)