SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Thousands	12 Months Ended
Apr. 25, 2020	Apr. 27, 2019	Apr. 28, 2018
Allowance for doubtful accounts, deducted from accounts receivable
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	$ 2,180	$ 1,956	$ 2,563
Acquisitions	0	600	0
Charged/ (Credited) to Costs and Expenses	13,263	367	261
Charged/ (Credited) to Other Accounts	0	0	0
Deductions	(7,902)	(743)	(868)
Balance at End of Year	7,541	2,180	1,956
Allowance for deferred tax assets
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	2,312	1,224	1,786
Acquisitions	0	0	0
Charged/ (Credited) to Costs and Expenses	687	740	0
Charged/ (Credited) to Other Accounts	2	506	(299)
Deductions	(864)	(158)	(263)
Balance at End of Year	$ 2,137	$ 2,312	$ 1,224

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

No definition available.

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- Definition

Amount of valuation and qualifying accounts and reserves.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SX 210.12-09)
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690

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Amount of increase in valuation and qualifying accounts and reserves from charge to cost and expense.

+ References

+ Details

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Amount of increase in valuation and qualifying accounts and reserves from charge to accounts other than cost and expense.

+ References

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Amount of decrease in valuation and qualifying accounts and reserves.

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- Definition

Amount of increase in valuation and qualifying accounts and reserves from business combination.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SX 210.12-09)
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690

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