Quarterly Financial Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Feb. 01, 2020	Nov. 02, 2019	Aug. 03, 2019	May 04, 2019	Feb. 02, 2019	Nov. 03, 2018	Aug. 04, 2018	May 05, 2018	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 313,024	$ 275,475	$ 252,440	$ 343,295	$ 305,964	$ 216,888	$ 211,123	$ 274,707	$ 1,184,234	$ 1,008,682	$ 968,219
Gross margin	98,743	90,168	76,373	118,603	95,099	70,512	66,351	96,773	383,451	328,735	312,717
Operating income (loss)	7,793	2,624	(11,641)	37,342	8,963	1,842	(1,885)	28,621	36,117	37,541	56,678
Net income (loss)	$ 6,001	$ 2,265	$ (8,778)	$ 27,857	$ 6,634	$ 1,499	$ (1,222)	$ 21,509	$ 27,344	$ 28,421	$ 35,030
Basic earnings per share (in dollars per share)	$ 0.35	$ 0.13	$ (0.49)	$ 1.52	$ 0.36	$ 0.08	$ (0.06)	$ 1.13	$ 1.54	$ 1.52	$ 1.72
Diluted earnings (loss) per share (in dollars per share)	$ 0.34	$ 0.13	$ (0.49)	$ 1.50	$ 0.36	$ 0.08	$ (0.06)	$ 1.12	$ 1.52	$ 1.51	$ 1.71