Risk Management and Derivatives (Schedule of Contract Notional Amount of All Purchase and Sale Contracts of a Foreign Currency) (Details) - Forward Contracts - USD ($) $ in Thousands	Aug. 04, 2018	Feb. 03, 2018	Jul. 29, 2017
Derivative [Line Items]
Derivative, Notional Amount	$ 44,155	$ 51,166	$ 45,733
Euro
Derivative [Line Items]
Derivative, Notional Amount	14,852	21,223	14,725
U.S. dollars (purchased by the Company's Canadian division with Canadian dollars) [Member]
Derivative [Line Items]
Derivative, Notional Amount	15,992	16,874	18,110
Chinese yuan
Derivative [Line Items]
Derivative, Notional Amount	12,394	12,058	11,887
New Taiwanese dollars
Derivative [Line Items]
Derivative, Notional Amount	526	596	567
Other currencies
Derivative [Line Items]
Derivative, Notional Amount	$ 391	$ 415	$ 444