Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Beginning balance at Feb. 02, 2019	$ 63	$ (86)	$ 600,234	$ 342,441	$ 942,652
Beginning balance (in shares) at Feb. 02, 2019	63,015
Beginning balance (in shares) at Feb. 02, 2019		(9)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	$ 0	$ 0	7,302	0	7,302
Proceeds from stock options exercised	$ 1	$ 0	9,086	0	9,087
Proceeds from stock options exercised (in shares)	653	0
Vesting of restricted stock	$ 0	$ 0	0	0	0
Vesting of restricted stock (in shares)	60	0
Common shares withheld for taxes	$ 0	$ 0	(1,272)	0	(1,272)
Common shares withheld for taxes (in shares)	(16)	0
Shares repurchased	$ 0	$ (40,014)	0	0	(40,014)
Shares repurchased (in shares)	0	(689)
Net income	$ 0	$ 0	0	141,130	141,130
Ending balance at Feb. 01, 2020	$ 64	$ (40,100)	615,350	483,571	1,058,885
Ending balance (in shares) at Feb. 01, 2020	63,712
Ending balance (in shares) at Feb. 01, 2020		(698)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	$ 0	$ 0	6,501	0	6,501
Proceeds from stock options exercised	$ 2	$ 0	28,059	0	28,061
Proceeds from stock options exercised (in shares)	2,403	0
Vesting of restricted stock	$ 0	$ 0	0	0	0
Vesting of restricted stock (in shares)	69	0
Common shares withheld for taxes	$ 0	$ 0	(961)	0	(961)
Common shares withheld for taxes (in shares)	(19)	0
Shares repurchased	$ 0	$ (301)	0	0	(301)
Shares repurchased (in shares)	0	(4)
Net income	$ 0	$ 0	0	242,696	242,696
Ending balance at Jan. 30, 2021	$ 66	$ (40,401)	648,949	726,267	1,334,881
Ending balance (in shares) at Jan. 30, 2021	66,165
Ending balance (in shares) at Jan. 30, 2021		(702)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	$ 0	$ 0	8,042	0	8,042
Proceeds from stock options exercised	$ 1	$ 0	8,634	0	8,635
Proceeds from stock options exercised (in shares)	305	0
Vesting of restricted stock	$ 0	$ 0	0	0	0
Vesting of restricted stock (in shares)	62	0
Common shares withheld for taxes	$ 0	$ 0	(1,332)	0	(1,332)
Common shares withheld for taxes (in shares)	(16)	0
Shares repurchased	$ 0	$ (219,971)	0	0	(219,971)
Shares repurchased (in shares)	0	(3,114)
Net income	$ 0	$ 0	0	157,455	157,455
Ending balance at Jan. 29, 2022	$ 67	$ (260,372)	$ 664,293	$ 883,722	$ 1,287,710
Ending balance (in shares) at Jan. 29, 2022	66,516
Ending balance (in shares) at Jan. 29, 2022		(3,816)