Customer Financing - Activity in DPP Receivables (Details) - USD ($) $ in Thousands	6 Months Ended
	Oct. 24, 2020	Oct. 26, 2019	Oct. 24, 2020	Oct. 26, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Cash collections on DPP receivable	$ (408,907)	$ (212,307)
Customer Finance Contracts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning DPP receivable balance	228,019	121,657
Non-cash additions to DPP receivable	51,171	5,667
Cash collections on DPP receivable	(73,679)	(25,241)
Ending DPP receivable balance	$ 228,019	$ 121,657	$ 205,511	$ 102,083