Leases - Supplemental Lease Disclosures (Details) $ in Thousands	6 Months Ended
	Oct. 26, 2019 USD ($)
Leases [Abstract]
Cash paid for amounts included in the measurement of lease liabilities, operating	$ 38,514
Cash paid for amounts included in the measurement of lease liabilities, financing	98
Lease liabilities arising from new ROU assets, operating	$ 20,442
Lease term and discount rate
Operating lease, Weighted-average remaining lease term (years)	6 years 7 months 6 days
Finance lease, Weighted-average remaining lease term (years)	7 months 6 days
Operating Lease, Weighted-average discount rate	3.90%
Finance lease, Weighted-average discount rate	3.90%