Leases, Supplemental Cash Flow Information and Non-cash Activity Related to Operating Leases (Details) - USD ($) $ in Thousands	3 Months Ended
	Oct. 27, 2023	Oct. 28, 2022
Operating cash flow information [Abstract]
Cash paid for amounts included in the measurement of lease liabilities	$ 24,347	$ 23,746
Noncash information [Abstract]
Right-of-use assets obtained in exchange for new operating lease liabilities	3,651	3,991
Lease modifications or reassessments increasing or (decreasing) right-of-use assets	16,917	(516)
Lease modifications removing right-of-use assets	$ (144)	$ (77)