Leases Leases (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Jan. 25, 2020	Jan. 25, 2020	Apr. 28, 2019
Leases [Abstract]
Operating Lease, Weighted Average Remaining Lease Term	4 years 10 months 15 days	4 years 10 months 15 days
Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year	$ 65,672	$ 65,672
Variable Lease, Cost	23,402	54,412
Lease, Cost	37,188	137,148
Operating Lease, Expense	60,590	191,560
Lessee, Operating Lease, Liability, Payments, Due Year Two	63,753	63,753
Lessee, Operating Lease, Liability, Payments, Due Year Three	47,012	47,012
Lessee, Operating Lease, Liability, Payments, Due Year Four	39,724	39,724
Lessee, Operating Lease, Liability, Payments, Due Year Five	31,316	31,316
Lessee, Operating Lease, Liability, Payments, Due after Year Five	58,018	58,018
Lessee, Operating Lease, Liability, Payments, Due	305,495	305,495
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	34,021	34,021
Operating Lease, Liability	$ 271,474	$ 271,474	$ 294,727
Operating Lease, Weighted Average Discount Rate, Percent	4.30%	4.30%
Operating Lease, Payments		$ 106,690
ROU Asst Obtained in Exchange for Lease Liabilites		$ 88,902