Revenue Recognition - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Oct. 24, 2020	Oct. 24, 2020	Apr. 26, 2020
Revenue from Contract with Customer [Abstract]
Other receivables, included in other current assets	$ 67.9	$ 67.9	$ 17.1
Customer deposits, included in accrued expenses and other current liabilities	140.7	140.7	40.7
Deferred revenues, included in accrued expenses and other current liabilities	67.9	67.9	$ 17.1
Revenue recognized related to contract liabilities	$ 1.8	$ 51.5