Risk Management And Derivatives (Schedule Of Contract Notional Amount Of All Purchase And Sale Contracts Of A Foreign Currency) (Details) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Aug. 01, 2015	Aug. 02, 2014	Feb. 01, 2014	Jan. 31, 2015
Derivative [Line Items]
Derivative, Maturity Date	Jul. 29, 2016
Forward Contracts [Member]
Derivative [Line Items]
Derivative, Maturity Date	Jul. 29, 2016	Aug. 31, 2015	Jan. 01, 2016
Notional contract amount of all purchase and sale contracts of a foreign currency	$ 55,740	$ 50,854		$ 53,389
U.S. Dollars (Purchased By The Company's Canadian Division With Canadian Dollars) [Member] | Forward Contracts [Member]
Derivative [Line Items]
Notional contract amount of all purchase and sale contracts of a foreign currency	19,650	20,973		19,633
Chinese Yuan [Member] | Forward Contracts [Member]
Derivative [Line Items]
Notional contract amount of all purchase and sale contracts of a foreign currency	15,214	14,524		14,512
Euro [Member] | Forward Contracts [Member]
Derivative [Line Items]
Notional contract amount of all purchase and sale contracts of a foreign currency	18,035	12,331		16,152
Japanese Yen [Member] | Forward Contracts [Member]
Derivative [Line Items]
Notional contract amount of all purchase and sale contracts of a foreign currency	1,208	1,613		1,523
Taiwan, New Dollars | Forward Contracts [Member]
Derivative [Line Items]
Notional contract amount of all purchase and sale contracts of a foreign currency	537	598		599
Other Currencies [Member] | Forward Contracts [Member]
Derivative [Line Items]
Notional contract amount of all purchase and sale contracts of a foreign currency	$ 1,096	$ 815		$ 970