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Investments - Schedule of Sales and Maturities (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Oct. 26, 2024 | Oct. 28, 2023 | Oct. 26, 2024 | Oct. 28, 2023
Sales of Marketable Securities |  |  |  |
Proceeds from sales | $ 2,346 | $ 8,064 | $ 10,225 | $ 20,468
Gross realized gains | 318 | 1,715 | 433 | 1,876
Gross realized losses | 0 | $ (272) | (35) | $ (740)
Fair Value of Available-For-Sale Securities By Contractual Maturity |  |  |  |
Within one year | 994 |  | 994 |
Securities not due at a single maturity date | 6,451 |  | 6,451 |
Total | $ 7,445 |  | $ 7,445 |

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