Leases, Supplemental Cash Flow Information and Non-cash Activity Related to Operating Leases (Details) - USD ($) $ in Thousands	3 Months Ended
	Oct. 28, 2022	Oct. 29, 2021
Operating cash flow information [Abstract]
Cash paid for amounts included in the measurement of lease liabilities	$ 23,746	$ 22,793
Noncash information [Abstract]
Right-of-use assets obtained in exchange for new operating lease liabilities	3,991	6,688
Lease modifications or reassessments increasing or decreasing right-of-use assets	(516)	3,377
Lease modifications removing right-of-use assets	$ (77)	$ (162)