Goodwill and Other Intangible Assets - Balances of Other Intangible Assets Excluding Goodwill (Details) - USD ($) $ in Thousands	Apr. 29, 2017	Apr. 30, 2016
Unamortized - indefinite lived:
Copyrights, trade names and trademarks	$ 29,900	$ 29,900
Amortized - definite lived:
Gross	536,872	641,236
Accumulated Amortization	(141,336)	(161,839)
Net	395,536	479,397
Total identifiable intangible assets, gross	566,772	671,136
Total amortized intangible assets	425,436	509,297
Customer relationships
Amortized - definite lived:
Gross	353,237	356,707
Accumulated Amortization	(67,483)	(44,953)
Net	285,754	311,754
Trade names and trademarks
Amortized - definite lived:
Gross	129,426	130,516
Accumulated Amortization	(35,580)	(22,454)
Net	93,846	108,062
Developed technology and other
Amortized - definite lived:
Gross	54,209	154,013
Accumulated Amortization	(38,273)	(94,432)
Net	$ 15,936	$ 59,581

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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Amount before accumulated amortization of intangible assets, excluding goodwill.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph ((a)(1),(b))
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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