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Investments - Components (Details) - USD ($) $ in Thousands | Jan. 25, 2020 | Apr. 27, 2019
--- | --- | ---
Investments |  |
Total investments | $ 50,814 | $ 57,421
Investments to enhance returns on cash |  |
Investments |  |
Total investments | 30,109 | 31,470
Investments to fund compensation/retirement plans |  |
Investments |  |
Total investments | 14,226 | 13,972
Other investments |  |
Investments |  |
Total investments | 6,479 | 11,979
Short-term investments |  |
Investments |  |
Marketable securities | 18,891 | 18,016
Held-to-maturity investments | 3,542 | 3,341
Total investments | 22,433 | 21,357
Long-term investments |  |
Investments |  |
Marketable securities | 21,902 | 24,085
Cost basis investments | 6,479 | 11,979
Total investments | $ 28,381 | $ 36,064

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