Derivative Financial Instruments (Details 4)	3 Months Ended		9 Months Ended
	Oct. 29, 2011 USD ($)	Oct. 30, 2010 USD ($)	Oct. 29, 2011 USD ($)	Oct. 30, 2010 USD ($)	Oct. 29, 2011 Derivatives not designated as hedging instruments: Euro USD ($)	Jan. 29, 2011 Derivatives not designated as hedging instruments: Euro USD ($)	Oct. 29, 2011 Derivatives not designated as hedging instruments: Canada, Dollars USD ($)	Jan. 29, 2011 Derivatives not designated as hedging instruments: Canada, Dollars USD ($)	Oct. 29, 2011 Derivatives not designated as hedging instruments: Swiss franc USD ($)	Jan. 29, 2011 Derivatives not designated as hedging instruments: Swiss franc USD ($)	Oct. 29, 2011 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					$ 102,100,000	$ 70,000,000	$ 47,200,000	$ 67,700,000	$ 18,000,000	$ 30,100,000
Notional amount of foreign exchange currency contracts											300,000	11,300,000
Foreign currency forward contracts, maximum remaining maturity period (in months)					6M		9M		11M		1M
Gain/(loss) on foreign exchange currency contracts recognized in other income/expense	6,401,000	(3,938,000)	(6,005,000)	(102,000)
Gain/(loss) on interest rate swaps recognized in other income/expense	$ (89,000)	$ 130,000	$ (89,000)	$ (37,000)