Financial Instruments and Fair Value - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended		12 Months Ended
	Aug. 02, 2014	Aug. 03, 2013	Feb. 01, 2014
Foreign Exchange Contract
Financial Instruments and Fair Value [Line Items]
Cash flow hedges settlement period	These contracts have been designated as cash flow hedges and will be settled over the next 12 months (February 1, 2014 and August 3, 2013 12 months and 18 months, respectively).
Foreign Exchange Contract | Not Designated as Hedging Instrument
Financial Instruments and Fair Value [Line Items]
Total notional amount	$ 27.7	$ 58.1	$ 22.1
Commodity Contract
Financial Instruments and Fair Value [Line Items]
Cash flow hedges settlement period	These contracts have been designated as cash flow hedges and will be settled over the next 7 months (February 1, 2014 and August 3, 2013 12 months and 0 months, respectively).
Interest Rate Risk
Financial Instruments and Fair Value [Line Items]
Total notional amount	0	0	0
Cash Flow Hedging
Financial Instruments and Fair Value [Line Items]
Derivative losses to be reclassified out of AOCI in the next 12 months	7.3
Derivative losses to be reclassified out of AOCI in the remainder of Fiscal 2015	6.2
Cash Flow Hedging | Foreign Exchange Contract
Financial Instruments and Fair Value [Line Items]
Total notional amount	34.2	50.3	42.3
Contracts maturity period	12 months	18 months	12 months
Cash Flow Hedging | Commodity Contract
Financial Instruments and Fair Value [Line Items]
Total notional amount	$ 27.1	$ 0	$ 63.0
Contracts maturity period	7 months	0 months	12 months