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SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Feb. 02, 2019	Nov. 03, 2018	Aug. 04, 2018	May 05, 2018	Feb. 03, 2018	Oct. 28, 2017	Jul. 29, 2017	Apr. 29, 2017	Feb. 02, 2019	Feb. 03, 2018	Jan. 28, 2017
Quarterly Financial Information [Abstract]
Net sales	$ 264,412	$ 215,107	$ 201,080	$ 204,897	$ 281,172	$ 224,307	$ 195,650	$ 212,251	$ 885,496	$ 913,380	$ 974,873
Gross profit	121,294	86,157	78,931	79,691	133,239	90,928	74,139	81,717	366,073	380,023	397,168
Net income	$ 41,135	$ 20,476	$ 15,659	$ 18,338	$ 42,035	$ 19,904	$ 11,483	$ 16,285	$ 95,608	$ 89,707	$ 97,961
Basic earnings per share	$ 0.85	$ 0.42	$ 0.32	$ 0.38	$ 0.87	$ 0.41	$ 0.24	$ 0.34	$ 1.97	$ 1.86	$ 2.04
Diluted earnings per share	$ 0.84	$ 0.42	$ 0.32	$ 0.38	$ 0.87	$ 0.41	$ 0.24	$ 0.34	$ 1.97	$ 1.85	$ 2.03

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