Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended	12 Months Ended
	Nov. 01, 2014	Nov. 01, 2014	Feb. 01, 2014	Nov. 02, 2013
Income Tax Disclosure [Abstract]
Cumulative tax effect of change in tax method	$ 7.1
Income tax benefit		2.7
Recorded deferred tax expense		4.4
Uncertain tax positions, including interest and penalties, that would favorably impact effective tax rate	8.2	8.2	9.9	3.3
Uncertain tax positions, amount recorded as a direct reduction to deferred tax assets		6.2	6.2
Tax effect of favorable audit resolution	$ 0.8
Minimum number of years certain states keep their statute open (in years)		6 years
Maximum number of years certain states keep their statute open (in years)		10 years