Goodwill and Other Intangible Assets - Balances of Other Intangible Assets Excluding Goodwill (Details) - USD ($) $ in Thousands	Apr. 27, 2019	Apr. 28, 2018
Unamortized - indefinite lived:
Copyrights, trade names and trademarks	$ 12,300	$ 29,900
Amortized - definite lived:
Gross	557,310	540,787
Accumulated Amortization	(218,457)	(181,263)
Net	338,853	359,524
Total identifiable intangible assets, gross	569,610	570,687
Total amortized intangible assets	351,153	389,424
Customer relationships
Amortized - definite lived:
Gross	353,639	355,488
Accumulated Amortization	(113,812)	(91,374)
Net	239,827	264,114
Trade names and trademarks
Amortized - definite lived:
Gross	133,202	129,973
Accumulated Amortization	(61,435)	(49,545)
Net	71,767	80,428
Developed technology and other
Amortized - definite lived:
Gross	70,469	55,326
Accumulated Amortization	(43,210)	(40,344)
Net	$ 27,259	$ 14,982

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

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 340
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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.

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Amount before accumulated amortization of intangible assets, excluding goodwill.

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- Definition

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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
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-Topic 350
-SubTopic 30
-Section 45
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-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274

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