Quarterly Financial Information (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
Details of Quarterly financial information
Net sales	$ 677,579	$ 537,263	$ 486,573	$ 495,651	$ 675,491	$ 539,828	$ 487,015	$ 486,219	$ 2,197,066	$ 2,188,553	$ 2,127,547
Gross margin	317,472	264,202	236,533	244,908	315,663	261,918	231,469	238,006	1,063,115	1,047,056	1,011,383
Earnings from continuing operations before income taxes	44,958	25,433	2,708	9,336	49,986	25,580	1	2,692	82,435	78,259	68,989
Earnings (loss) from continuing operations	35,515	18,979	793	6,470	29,699	19,694	(25)	1,856	61,757	51,224	36,708
Net earnings (loss)	$ 35,562	$ 18,899	$ 577	$ 6,346	$ (63,971)	$ 14,387	$ (15)	$ (2,331)	$ 61,384	$ (51,930)	$ (111,839)
Diluted earnings (loss) per common share:
Continuing operations (in dollars per share)	$ 2.49	$ 1.31	$ 0.05	$ 0.36	$ 1.53	$ 1.00	$ 0.00	$ 0.10	$ 3.94	$ 2.63	$ 1.90
Net earnings (loss) (in dollars per share)	$ 2.49	$ 1.30	$ 0.04	$ 0.36	$ (3.29)	$ 0.73	$ 0.00	$ (0.12)	$ 3.92	$ (2.66)	$ (5.80)