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Investments - Schedule of Investments (Details) - USD ($) $ in Thousands | Oct. 25, 2025 | Apr. 26, 2025
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Summary of Investment Holdings [Line Items] |  |
Total investments | $ 15,321 | $ 14,901
Investments to enhance returns on cash |  |
Summary of Investment Holdings [Line Items] |  |
Total investments | 2,643 | 2,607
Investments to fund compensation/retirement plans |  |
Summary of Investment Holdings [Line Items] |  |
Total investments | 12,678 | 12,294
Short-term investments |  |
Summary of Investment Holdings [Line Items] |  |
Marketable securities | 11 | 10
Held-to-maturity investments | 2,643 | 2,607
Total investments | 2,654 | 2,617
Long-term investments |  |
Summary of Investment Holdings [Line Items] |  |
Marketable securities | $ 12,667 | $ 12,284

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