The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Supplementary Information Supplementary Info - Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 27, 2019	Apr. 28, 2018	Apr. 29, 2017	Jan. 26, 2019
Goodwill [Line Items]
Goodwill, Impairment Loss	$ (49,282)	$ (313,130)
Goodwill	4,700	49,282	$ 329,467	$ 49,282
Goodwill, Purchase Accounting Adjustments		1,163
Business Acquisition, Goodwill, Expected Tax Deductible Amount	79,578
Student Brands [Member]
Goodwill [Line Items]
Goodwill, Acquired During Period		31,782
MBS [Member]
Goodwill [Line Items]
Goodwill, Acquired During Period			$ 49,282
Goodwill, Purchase Accounting Adjustments		$ 1,163
PaperRater [Member]
Goodwill [Line Items]
Goodwill, Acquired During Period	5
Goodwill, Purchase Accounting Adjustments	$ 4,700