Income Taxes - DTA & DTL (Details) - USD ($) $ in Millions	11 Months Ended	12 Months Ended
	Jan. 28, 2012	Jan. 30, 2016	Jan. 31, 2015
Income Tax Disclosure
Valuation Allowance, Increase (Decrease)	$ 10.6	$ 37.5	$ (41.3)
Number of consecutive years of profitability			2 years
Number of years of cumulative positive earnings			3 years
Number of months of cumulative losses		36 months