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Property and Equipment, Net - Summary of Estimated Useful Lives of Property and Equipment (Parenthetical) (Detail) | 6 Months Ended
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Jun. 28, 2014
Property, Plant and Equipment [Line Items] |
Estimated useful life of property and equipment | 20 years
Leasehold improvements [Member] |
Property, Plant and Equipment [Line Items] |
Description of estimated useful life of property and equipment | The estimated useful life is the lesser of 3-5 years or the lease term.
Minimum [Member] | Leasehold improvements [Member] |
Property, Plant and Equipment [Line Items] |
Estimated useful life of property and equipment | 3 years
Maximum [Member] | Leasehold improvements [Member] |
Property, Plant and Equipment [Line Items] |
Estimated useful life of property and equipment | 5 years

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- Definition Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2155824 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration