Investments - Components (Details) - USD ($) $ in Thousands	Oct. 27, 2018	Apr. 28, 2018
Investments
Total investments	$ 54,285	$ 59,354
Investments to enhance returns on cash
Investments
Total investments	29,795	34,359
Investments to fund compensation/retirement plans
Investments
Total investments	13,536	14,041
Other investments
Investments
Total investments	10,954	10,954
Other current assets
Investments
Marketable securities	13,052	12,926
Held-to-maturity investments	3,218	3,340
Total investments	16,270	16,266
Other long-term assets
Investments
Marketable securities	27,061	32,134
Cost basis investments	10,954	10,954
Total investments	$ 38,015	$ 43,088

Amount of investment in equity security without readily determinable fair value.

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- Definition

Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity.

+ References

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-Publisher FASB
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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Sum of the carrying amounts as of the balance sheet date of all investments.

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Total debt and equity financial instruments including: (1) securities held-to-maturity, (2) trading securities, and (3) securities available-for-sale.

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