Risk Management and Derivatives (Schedule of Contract Notional Amount of All Purchase and Sale Contracts of a Foreign Currency) (Details) - Forward Contracts [Member] - USD ($) $ in Thousands	Oct. 28, 2017	Jan. 28, 2017	Oct. 29, 2016
Derivative [Line Items]
Derivative, Notional Amount	$ 50,250	$ 42,088	$ 44,153
U.S. dollars (purchased by the Company's Canadian division with Canadian dollars) [Member]
Derivative [Line Items]
Derivative, Notional Amount	18,242	18,826	17,229
Euro
Derivative [Line Items]
Derivative, Notional Amount	18,815	13,297	10,854
Chinese yuan
Derivative [Line Items]
Derivative, Notional Amount	12,613	7,723	13,038
New Taiwanese dollars
Derivative [Line Items]
Derivative, Notional Amount	$ 580	526	538
United Arab Emirates dirham
Derivative [Line Items]
Derivative, Notional Amount		823	1,143
Japanese yen
Derivative [Line Items]
Derivative, Notional Amount		769	1,145
Other currencies
Derivative [Line Items]
Derivative, Notional Amount		$ 124	$ 206