Property and Equipment - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 30, 2016	Jan. 31, 2015	Feb. 01, 2014
Property, Plant, and Equipment Disclosure [Line Items]
Depreciation expense	$ 22.8	$ 21.2	$ 19.4
Capital expenditures	23.4	22.8	42.2
Selling, General and Administrative Expenses
Property, Plant, and Equipment Disclosure [Line Items]
Impairment of assets	$ 2.6	$ 1.0	$ 1.8