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Investments - Schedule of Investments (Details) - USD ($) $ in Thousands | Apr. 27, 2024 | Apr. 29, 2023
--- | --- | ---
Summary of Investment Holdings [Line Items] |  |
Total investments | $ 19,502 | $ 24,903
Investments to enhance returns on cash |  |
Summary of Investment Holdings [Line Items] |  |
Total investments | 6,754 | 11,617
Investments to fund compensation/retirement plans |  |
Summary of Investment Holdings [Line Items] |  |
Total investments | 12,748 | 13,286
Short-term investments: |  |
Summary of Investment Holdings [Line Items] |  |
Marketable securities | 5,553 | 5,043
Held-to-maturity investments | 1,259 | 1,351
Total investments | 6,812 | 6,394
Other long-term assets |  |
Summary of Investment Holdings [Line Items] |  |
Marketable securities | $ 12,690 | $ 18,509

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