Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jan. 31, 2015	Feb. 01, 2014	Feb. 02, 2013
Operating Loss Carryforwards [Line Items]
Federal statutory rate	35.00%	35.00%	35.00%
Unremitted foreign earnings	$ 1.6
Incremental tax on undistributed foreign earnings	0.3
Unrecognized tax benefits that would affect the effective tax rate if recognized	4.7
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Upper Bound	1.6
Recognized accrued interest and penalties related to unrecognized tax benefits	0.1	0.2	(1.8)
Accrued interest and penalties related to unrecognized tax benefits	1.8	1.8	1.9
Deferred Tax Assets, Expiring 2031 through 2033
Operating Loss Carryforwards [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards	$ 11.7	$ 10.1