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This item represents the total amount of realized and unrealized losses for the period recorded in the statement of income from the measurement of assets on a non-recurring basis.

+ References

No definition available.

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- Definition

Fair value portion of investments accounted under the cost method.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 325

-SubTopic 20

-Section 25

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=29638263&loc=d3e39828-111592

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- Definition

Fair value portion of assets, excluding financial assets, that lack physical substance, having a limited useful life.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19190-110258

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- Definition

The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 3

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16373-109275

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- Definition

The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

+ References

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- Definition

The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 45

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2420-110228

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2921-110230

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 958

-SubTopic 225

-Section 45

-Paragraph 11

-Subparagraph (a)

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Impairment

-URI http://asc.fasb.org/extlink&oid=6515133

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- Definition

Fair value portion of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

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Fair Value Measurements - Schedule of Estimated Fair Value of Assets Measured on a Nonrecurring Basis (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
	Dec. 28, 2013	Mar. 29, 2014	Mar. 30, 2013
Assets And Liabilities Carrying Value And Fair Value [Line Items]
Intangible asset, Total Gains (Losses)		$ (27,100)
Total Gains (Losses)	(3,100)
Cost-method equity investments, Total Gains (Losses)		(3,705)	(1,733)
Fair Value, Measurements, Nonrecurring [Member]
Assets And Liabilities Carrying Value And Fair Value [Line Items]
Intangible assets		18,272
Cost-method equity investments		778
Intangible asset, Total Gains (Losses)		(27,089)
Cost-method equity investments, Total Gains (Losses)		(3,705)
Total Gains (Losses)		(35,431)
Fair Value, Measurements, Nonrecurring [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Assets And Liabilities Carrying Value And Fair Value [Line Items]
Intangible assets		18,272
Cost-method equity investments		778
Fair Value, Measurements, Nonrecurring [Member] \| Property and equipment [Member]
Assets And Liabilities Carrying Value And Fair Value [Line Items]
Fair Value		1,015
Total Gains (Losses)		(1,505)
Fair Value, Measurements, Nonrecurring [Member] \| Property and equipment [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Assets And Liabilities Carrying Value And Fair Value [Line Items]
Fair Value		1,015
Fair Value, Measurements, Nonrecurring [Member] \| Buildings [Member]
Assets And Liabilities Carrying Value And Fair Value [Line Items]
Fair Value		1,388
Total Gains (Losses)		(3,132)
Fair Value, Measurements, Nonrecurring [Member] \| Buildings [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Assets And Liabilities Carrying Value And Fair Value [Line Items]
Fair Value		$ 1,388