Fair Value Measurements-valuation (Details)	12 Months Ended
	Jan. 30, 2016	Jan. 31, 2015
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted average cost of capital	15.00%	15.00%
Minimum | Level 3
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Unobservable Input, Annual Sales Growth	0.00%	(3.00%)
Maximum | Level 3
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Unobservable Input, Annual Sales Growth	8.00%	3.50%