General - Schedule of Other Income, Net (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Jan. 23, 2021	Jan. 25, 2020	Jan. 23, 2021	Jan. 25, 2020
Accounting Policies [Abstract]
Gain on investment	$ 0	$ 0	$ 0	$ 34,334
Gain (loss) on interest rate swap agreements	145	(485)	(635)	(6,048)
Investment income and other	4,178	2,792	10,215	6,207
Other income, net	$ 4,323	$ 2,307	$ 9,580	$ 34,493

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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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Amount of realized and unrealized gain (loss) on investment.

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Amount of income related to nonoperating activities, classified as other.

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Amount of income (expense) related to nonoperating activities, classified as other.

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