Shareholders' Equity - Summary of Combined Stock Option Activity and Related Information for Stock Options Granted (Details) - Stock Options - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Apr. 27, 2024	Apr. 29, 2023	Apr. 30, 2022	May 01, 2021
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding [Roll Forward]
Outstanding - beginning balance (in shares)	20,000	60,000	73,000
Exercised (in shares)		(40,000)	(13,000)	0
Forfeited (in shares)	(12,000)	0	0
Outstanding - ending balance (in shares)	8,000	20,000	60,000	73,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Weighted average exercise price, Outstanding - beginning balance (in dollars per share)	$ 37.01	$ 37.01	$ 37.01
Weighted average exercise price, Exercised (in dollars per share)		37.01	37.01	$ 0
Weighted average exercise price, Forfeited (in dollars per share)	37.01	0	0
Weighted average exercise price, Outstanding - ending balance (in dollars per share)	$ 37.01	$ 37.01	$ 37.01	$ 37.01
Weighted-average life of outstanding options	2 months 12 days	1 year 2 months 12 days	2 years 2 months 12 days	3 years 2 months 12 days
Intrinsic value of outstanding options	$ 0.0	$ 0.1	$ 0.5	$ 0.6