Derivative Instruments and Hedging Activities, Amounts Reclassified out of AOCL Related to Interest Rate Swaps (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	May 01, 2020	Jan. 31, 2020	Nov. 01, 2019	May 03, 2019	Feb. 01, 2019	Nov. 02, 2018	May 01, 2020	May 03, 2019
Amounts Reclassified Out of AOCL Related to Interest Rate Swaps [Abstract]
Interest expense	$ 5,298			$ 4,111			$ 12,383	$ 12,637
Provision for income taxes (income tax benefit)	(55,220)			10,560			(33,752)	32,461
Net of tax	(161,932)	$ 61,168	$ 43,223	$ 50,414	$ 60,755	$ 47,207	(57,541)	$ 158,376
Interest Rate Swaps [Member] | Cash Flow Hedging [Member]
Amounts Reclassified Out of AOCL Related to Interest Rate Swaps [Abstract]
Gains or losses representing amounts excluded from assessment of effectiveness							0
Loss on Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income (Loss) [Member] | Cash Flow Hedging [Member]
Amounts Reclassified Out of AOCL Related to Interest Rate Swaps [Abstract]
Provision for income taxes (income tax benefit)	116						139
Net of tax	(349)						(420)
Loss on Cash Flow Hedges [Member] | Interest Rate Swaps [Member] | Reclassification out of Accumulated Other Comprehensive Income (Loss) [Member] | Cash Flow Hedging [Member]
Amounts Reclassified Out of AOCL Related to Interest Rate Swaps [Abstract]
Interest expense	$ (465)						$ (559)