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	Nov. 03, 2018	Feb. 03, 2018	Oct. 28, 2017
Derivative [Line Items]
Derivative, Notional Amount	$ 34,845	$ 51,166	$ 50,250
Euro
Derivative [Line Items]
Derivative, Notional Amount	13,480	21,223	18,815
U.S. dollars (purchased by the Company's Canadian division with Canadian dollars) [Member]
Derivative [Line Items]
Derivative, Notional Amount	13,877	16,874	18,242
Chinese yuan
Derivative [Line Items]
Derivative, Notional Amount	6,570	12,058	12,613
New Taiwanese dollars
Derivative [Line Items]
Derivative, Notional Amount	530	596	$ 580
Other currencies
Derivative [Line Items]
Derivative, Notional Amount	$ 388	$ 415