Commitments and Contingencies - Additional Information (Detail) - USD ($)	12 Months Ended
	Feb. 03, 2018	Jan. 28, 2017	Jan. 30, 2016
Commitment And Contingencies [Line Items]
Lease expiration year	2035
Non-cash rent benefit expense	$ 1,000,000	$ 1,200,000	$ 2,900,000
Material off balance sheet commitments	$ 0
Gallery [Member]
Commitment And Contingencies [Line Items]
Lease expiration year	2058