Derivative Instruments and Hedging Activities, Pre-tax Effects of Derivative Instruments on AOCL and Income (Details) - Interest Rate Swaps [Member] - Cash Flow Hedging [Member] - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Oct. 30, 2015	Oct. 31, 2014	Jul. 31, 2015
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Income Recognized in AOCL on Derivatives (Effective Portion)	$ 4,881		$ 1,641
Ineffectiveness recorded in earnings on interest rate cash flow hedge	0	$ 0
Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Loss Reclassified from AOCL into Income (Effective Portion)	$ 1,447	$ 2,005