Derivatives (Details 2) (Cash Flow Hedges [Member], Designated as Hedging Instrument [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Feb. 02, 2013	Jul. 30, 2011
Cash Flow Hedges [Member] | Designated as Hedging Instrument [Member]
Effect of derivative instruments designated as cash flow hedges
(Loss) gain recognized in OCI on derivatives, net of tax	$ 5,091	$ (7,771)
Loss (gain) reclassified from OCI into income, net of tax	$ (1,553)	$ 2,030