Receivables Securitization Program - Activity in DPP Receivable (Details) - Receivables Purchase Agreements - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Apr. 24, 2021	Apr. 24, 2021	Apr. 25, 2020	Apr. 27, 2019
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Beginning DPP receivable balance		$ 117,327	$ 57,238	$ 0
Non-cash additions to DPP receivable	$ 768,619		552,751	408,565
Cash collections on DPP receivable	(701,947)		(492,662)	(351,327)
Ending DPP receivable balance	$ 183,999	$ 183,999	$ 117,327	$ 57,238