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
	Nov. 01, 2019	Nov. 02, 2018	Aug. 02, 2019
Interest Rate Cash Flow Hedges [Abstract]
Amount of loss recognized in AOCL on derivatives	$ (545)		$ (15,466)
Interest Expense [Member]
Interest Rate Cash Flow Hedges [Abstract]
Amount of gain reclassified from AOCL into income	$ (82)	$ 0