Derivative Financial Instruments (Details 4)	12 Months Ended
	Jan. 28, 2012 USD ($)	Jan. 29, 2011 USD ($)	Jan. 30, 2010 USD ($)	Jan. 28, 2012 Derivatives not designated as hedging instruments: Euro USD ($)	Jan. 29, 2011 Derivatives not designated as hedging instruments: Euro USD ($)	Jan. 28, 2012 Derivatives not designated as hedging instruments: Canadian dollar USD ($)	Jan. 29, 2011 Derivatives not designated as hedging instruments: Canadian dollar USD ($)	Jan. 28, 2012 Derivatives not designated as hedging instruments: Swiss franc USD ($)	Jan. 29, 2011 Derivatives not designated as hedging instruments: Swiss franc USD ($)	Jan. 28, 2012 Derivatives not designated as hedging instruments: Sale of GBP to purchase euros GBP (£)	Jan. 29, 2011 Derivatives not designated as hedging instruments: Sale of GBP to purchase euros GBP (£)
Forward contracts not designated as cash flow hedges
Notional amount of foreign exchange currency sales contracts				$ 88,000,000	$ 70,000,000	$ 50,500,000	$ 67,700,000	$ 14,000,000	$ 30,100,000
Notional amount of foreign exchange currency contracts										5,000,000	11,300,000
Foreign currency forward contracts, maximum remaining maturity period (in months)				11 months		8 months		9 months		7 months
Gain/(loss) on foreign exchange currency contracts recognized in other income/expense (before taxes)	4,254,000	(119,000)	(10,567,000)
Gain/(loss) on interest rate swaps recognized in other income/expense (before taxes)	$ (171,000)	$ 313,000	$ (455,000)