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

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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)

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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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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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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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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

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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

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-Section 45

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-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274

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Amortizable Intangible Assets and Unamortizable Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified							6 Months Ended			6 Months Ended				6 Months Ended
	Oct. 26, 2013	Apr. 27, 2013	Oct. 27, 2012	Oct. 26, 2013 Trade name	Oct. 26, 2013 Publishing contracts	Oct. 26, 2013 Customer relationships and other acquired intangible assets	Oct. 26, 2013 Customer relationships and other acquired intangible assets Minimum	Oct. 26, 2013 Customer relationships and other acquired intangible assets Maximum	Oct. 26, 2013 Technology	Oct. 26, 2013 Technology Minimum	Oct. 26, 2013 Technology Maximum	Oct. 26, 2013 Distribution contracts	Oct. 26, 2013 Other	Oct. 26, 2013 Other Minimum	Oct. 26, 2013 Other Maximum
Intangible Assets by Major Class [Line Items]
Useful Life							5 years	25 years		5 years	10 years	10 years		1 year	10 years
Gross Carrying Amount	$ 297,328					$ 271,938			$ 10,710			$ 8,325	$ 6,355
Accumulated Amortization	(72,816)					(54,956)			(5,667)			(6,591)	(5,602)
Total	224,512					216,982			5,043			1,734	753
Unamortizable intangible assets	314,736			293,400	21,336
Total amortizable and unamortizable, intangible assets	$ 539,248	$ 547,931	$ 558,157