Investments - Schedule of Unrealized Gains, Unrealized Losses and Fair Value (Details) - USD ($) $ in Thousands	Apr. 29, 2023	Apr. 30, 2022
Investments
Gross Unrealized  Gains	$ 2,551	$ 2,726
Gross Unrealized  Losses	(723)	(895)
Fair Value	24,903	51,537
Equity securities
Investments
Gross Unrealized  Gains	1,338	1,448
Gross Unrealized  Losses	(103)	(86)
Fair Value	6,853	13,905
Fixed income
Investments
Gross Unrealized  Gains	42	28
Gross Unrealized  Losses	(620)	(809)
Fair Value	14,039	33,521
Other
Investments
Gross Unrealized  Gains	1,171	1,250
Gross Unrealized  Losses	0	0
Fair Value	$ 4,011	$ 4,111