Significant Accounting Policies - Revision (Detail) - USD ($) $ in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Retained earnings (accumulated deficit)	$ (409,253)	$ (392,537)
As Reported
Retained earnings (accumulated deficit)		(376,810)	$ 152,400
As Revised
Retained earnings (accumulated deficit)	(379,100)		151,000
Overstatement of net income
Revision due to prior year misstatement in current year financial statements, amount		900	1,400
Overstatement of retained earnings
Revision due to prior year misstatement in current year financial statements, amount			$ 1,400
Understatement of accumulated deficit
Revision due to prior year misstatement in current year financial statements, amount	$ 2,300
Understatement of other non-current obligations
Revision due to prior year misstatement in current year financial statements, amount		3,300
Overstatement of other current liabilities
Revision due to prior year misstatement in current year financial statements, amount		1,000
Understatement of net cash provided by operating activities
Revision due to prior year misstatement in current year financial statements, amount		9,200
Understatement of net cash used in investing activities
Revision due to prior year misstatement in current year financial statements, amount		$ 9,200