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Investments - Summary of Unrealized Gains, Unrealized Losses and Fair Value (Details) - USD ($) $ in Thousands	Apr. 30, 2022	Apr. 24, 2021
Investments
Gross Unrealized  Gains	$ 2,726	$ 3,493
Gross Unrealized  Losses	(895)	(34)
Fair Value	51,537	55,404
Equity securities
Investments
Gross Unrealized  Gains	1,448	2,798
Gross Unrealized  Losses	(86)	(5)
Fair Value	13,905	14,954
Fixed income
Investments
Gross Unrealized  Gains	28	136
Gross Unrealized  Losses	(809)	(29)
Fair Value	33,521	35,631
Other
Investments
Gross Unrealized  Gains	1,250	559
Gross Unrealized  Losses	0	0
Fair Value	$ 4,111	$ 4,819

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- Definition

Cumulative amount of gross unrealized gain on investments.

+ References

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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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