Significant Accounting Policies - Summary of Condensed Consolidated Balance Sheets Illustrating Effect of Revision (Details) - USD ($) $ in Thousands	Feb. 02, 2019	Aug. 04, 2018	May 05, 2018	Feb. 03, 2018	Jan. 28, 2017	Jan. 30, 2016
Stockholders’ deficit/equity:
Common stock	$ 2	$ 2	$ 2	$ 2
Additional paid-in capital	356,422	925,087	851,228	840,765
Accumulated other comprehensive income	(2,333)	(1,918)	(1,436)	(171)
Retained earnings	(376,810)	223,459	159,417	152,394
Treasury stock	(243)	(1,000,569)	(1,000,569)	(1,000,326)
Total stockholders’ deficit	$ (22,962)	146,061	8,642	(7,336)	$ 919,869	$ 886,160
As Reported [Member]
Stockholders’ deficit/equity:
Common stock		2	2	2
Additional paid-in capital		944,610	870,751	860,288
Accumulated other comprehensive income		(1,918)	(1,436)	(171)
Retained earnings		223,459	159,417	152,394
Treasury stock		(1,020,092)	(1,020,092)	(1,019,849)
Total stockholders’ deficit		146,061	8,642	(7,336)
Adjustment [Member]
Stockholders’ deficit/equity:
Additional paid-in capital		(19,523)	(19,523)	(19,523)
Treasury stock		$ 19,523	$ 19,523	$ 19,523