Property and Equipment - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 03, 2018	Jan. 28, 2017	Jan. 30, 2016
Property, Plant, and Equipment Disclosure [Line Items]
Depreciation expense	$ 23.4	$ 23.3	$ 22.8
Capital expenditures	13.8	17.0	23.1
Impairment of assets	0.8	2.4	2.6
Selling, General and Administrative Expenses
Property, Plant, and Equipment Disclosure [Line Items]
Impairment of assets	$ 0.8	$ 2.4	$ 2.6