Summary of Significant Accounting Policies - Cumulative Effect of Revenue Recognition on Balance Sheets (Details) - USD ($) $ in Thousands	Nov. 03, 2018	Feb. 04, 2018	Feb. 03, 2018	Oct. 28, 2017
Current assets:
Prepaids and other current assets	$ 75,149	$ 69,771	$ 67,234	$ 73,895
Inventories	666,166	537,837	542,625	697,949
Deferred income taxes	25,015	23,509	25,077	41,451
Current liabilities:
Other accrued liabilities	56,931	63,988	72,220	69,242
Equity
Retained earnings	617,923	608,315	603,902	$ 545,624
Calculated under Revenue Guidance in Effect before Topic 606
Current assets:
Prepaids and other current assets	77,209		67,234
Inventories	669,794		542,625
Deferred income taxes	25,812		25,077
Current liabilities:
Other accrued liabilities	65,407		72,220
Equity
Retained earnings	615,908		$ 603,902
Accounting Standards Update 2014-09 | Adjustments due to ASC 606
Current assets:
Prepaids and other current assets	(2,060)	2,537
Inventories	(3,628)	(4,788)
Deferred income taxes	(797)	(1,568)
Current liabilities:
Other accrued liabilities	(8,476)	(8,232)
Equity
Retained earnings	$ 2,015	$ 4,413