Consolidated Statements Of Stockholders' Equity And Comprehensive Income (USD $) In Thousands	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
BALANCE at Jan. 29, 2011	$ 1,779	$ 282,528	$ 780,212	$ 388	$ 1,064,907
BALANCE, Shares at Jan. 29, 2011	177,899
Net income			140,874		140,874
Unrealized losses on marketable securities, net of taxes				(60)	(60)
Issuance of common stock	20	4,529			4,549
Issuance of common stock, Shares	2,024
Dividends paid on common stock			(34,152)		(34,152)
Repurchase of common stock	(142)	(845)	(182,303)		(183,290)
Repurchase of common stock, Shares	(14,187)
Stock-based compensation		15,198			15,198
Excess tax benefit from stock-based compensation		1,202			1,202
BALANCE at Jan. 28, 2012	1,657	302,612	704,631	328	1,009,228
BALANCE, Shares at Jan. 28, 2012	165,736
Net income			180,219		180,219
Unrealized losses on marketable securities, net of taxes				(112)	(112)
Issuance of common stock	37	16,494			16,531
Issuance of common stock, Shares	3,649
Dividends paid on common stock			(34,928)		(34,928)
Repurchase of common stock	(66)	(4,113)	(107,342)		(111,521)
Repurchase of common stock, Shares	(6,611)
Stock-based compensation		26,453			26,453
Excess tax benefit from stock-based compensation		7,329			7,329
BALANCE at Feb. 02, 2013	1,628	348,775	742,580	216	1,093,199
BALANCE, Shares at Feb. 02, 2013	162,774
Net income			65,883		65,883
Unrealized losses on marketable securities, net of taxes				(146)	(146)
Foreign currency translation adjustment				42	42
Issuance of common stock	36	12,359			12,395
Issuance of common stock, Shares	3,579
Dividends paid on common stock			(38,255)		(38,255)
Repurchase of common stock	(142)	(6,677)	(244,827)		(251,646)
Repurchase of common stock, Shares	(14,158)
Stock-based compensation		27,145			27,145
Excess tax benefit from stock-based compensation		486			486
BALANCE at Feb. 01, 2014	$ 1,522	$ 382,088	$ 525,381	$ 112	$ 909,103
BALANCE, Shares at Feb. 01, 2014	152,195