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Investments - Equity Securities (Details) - Equity securities and warrants - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jan. 27, 2024 | Jan. 28, 2023 | Jan. 27, 2024 | Jan. 28, 2023
Debt Securities, Available-for-Sale [Line Items] |  |  |  |
Net loss recognized during the period on equity securities | $ 751 | $ (2,726) | $ (2,712) | $ (1,798)
Unrealized loss recognized during the period on equity securities still held at the reporting date | $ 751 | $ (2,726) | $ (2,712) | $ (1,798)

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