Risk Management and Derivatives (Schedule of Fair Values of Derivative Instruments Designated as Hedging Instruments Included within the Condensed Consolidated Balance Sheet) (Details) - USD ($) $ in Thousands	Apr. 29, 2017	Jan. 28, 2017	Apr. 30, 2016
Prepaid expenses and other current assets
Derivative [Line Items]
Asset Derivatives, Fair Value	$ 610	$ 234	$ 615
Other Expense [Member]
Derivative [Line Items]
Liability Derivatives, Fair Value	$ 187	$ 874	$ 962