Earnings per Share (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
Basic:
Net earnings available for per-share calculation	$ 67,688	$ 5,462	$ (40,671)	$ 78,602	$ 85,158	$ 7,425	$ (2,868)	$ 80,548	$ 111,081	$ 170,263	$ 221,324
Average shares of common stock outstanding									25,364,000	27,312,000	29,487,000
Net income per share of common stock (in dollars per share)									$ 4.38	$ 6.23	$ 7.51
Diluted:
Net earnings available for per-share calculation	$ 67,688	$ 5,462	$ (40,671)	$ 78,602	$ 85,158	$ 7,425	$ (2,868)	$ 80,548	$ 111,081	$ 170,263	$ 221,324
Average shares of common stock outstanding									25,364,000	27,312,000	29,487,000
Dilutive effect of stock-based compensation (in shares)									0	0	0
Total weighted average equivalent shares									25,364,000	27,312,000	29,487,000
Net income per share of common stock (in dollars per share)	$ 2.75	$ 0.22	$ (1.59)	$ 2.99	$ 3.22	$ 0.27	$ (0.10)	$ 2.89	$ 4.38	$ 6.23	$ 7.51
Total stock options outstanding (in shares)	0				0				0	0