Leases - Supplemental Information Related to Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 24, 2021	Apr. 25, 2020
Leases [Abstract]
Cash paid for amounts included in the measurement of operating lease liabilities	$ 37,054	$ 37,934
Lease assets obtained in exchange for new operating lease liabilities	$ 50,114	$ 28,321
Weighted-average remaining lease term - operating leases	3 years 21 days	3 years 1 month 9 days
Weighted-average discount rate - operating leases	3.31%	3.58%