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Investments - Schedule of Investments (Details) - USD ($) $ in Thousands	Oct. 26, 2024	Apr. 27, 2024
Summary of Investment Holdings [Line Items]
Total investments	$ 15,195	$ 19,502
Investments to enhance returns on cash
Summary of Investment Holdings [Line Items]
Total investments	2,379	6,754
Investments to fund compensation/retirement plans
Summary of Investment Holdings [Line Items]
Total investments	12,816	12,748
Short-term investments
Summary of Investment Holdings [Line Items]
Marketable securities	1,031	5,553
Held-to-maturity investments	1,384	1,259
Total investments	2,415	6,812
Long-term investments
Summary of Investment Holdings [Line Items]
Marketable securities	$ 12,780	$ 12,690

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