Earnings per Share (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
Basic:
Net earnings available for per-share calculation	$ 85,158	$ 7,425	$ (2,868)	$ 80,548	$ 157,563	$ 14,539	$ (17,080)	$ 66,302	$ 170,263	$ 221,324	$ 169,220
Average shares of common stock outstanding									27,312,000	29,487,000	34,308,000
Net income per share of common stock (in dollars per share)									$ 6.23	$ 7.51	$ 4.93
Diluted:
Net earnings available for per-share calculation	$ 85,158	$ 7,425	$ (2,868)	$ 80,548	$ 157,563	$ 14,539	$ (17,080)	$ 66,302	$ 170,263	$ 221,324	$ 169,220
Average shares of common stock outstanding									27,312,000	29,487,000	34,308,000
Dilutive effect of stock-based compensation (in shares)									0	0	0
Total weighted average equivalent shares									27,312,000	29,487,000	34,308,000
Net income per share of common stock (in dollars per share)	$ 3.22	$ 0.27	$ (0.10)	$ 2.89	$ 5.55	$ 0.50	$ (0.58)	$ 2.12	$ 6.23	$ 7.51	$ 4.93
Total stock options outstanding (in shares)	0				0				0	0