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Investments - Unrealized Gains and Losses and Fair Value (Details) - USD ($) $ in Thousands	Jan. 22, 2022	Apr. 24, 2021
Summary of investments
Gross Unrealized  Gains	$ 3,386	$ 3,493
Gross Unrealized  Losses	(259)	(34)
Fair Value	52,669	55,404
Equity securities
Summary of investments
Gross Unrealized  Gains	2,004	2,798
Gross Unrealized  Losses	(55)	(5)
Fair Value	14,535	14,954
Fixed income
Summary of investments
Gross Unrealized  Gains	92	136
Gross Unrealized  Losses	(204)	(29)
Fair Value	33,780	35,631
Other
Summary of investments
Gross Unrealized  Gains	1,290	559
Gross Unrealized  Losses	0	0
Fair Value	$ 4,354	$ 4,819

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- Definition

Cumulative amount of gross unrealized gain on investments.

+ References

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- Definition

Cumulative amount of gross unrealized loss on investments.

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- Definition

Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

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