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Intangible Assets, Net - Summary of Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified |  |  | 6 Months Ended |  |  |  | 6 Months Ended |  | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended
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Jun. 28, 2014 | Dec. 28, 2013 | Jun. 28, 2014 Product design intellectual property [Member] | Dec. 28, 2013 Product design intellectual property [Member] | Jun. 28, 2014 Patent license agreement [Member] | Dec. 28, 2013 Patent license agreement [Member] | Jun. 28, 2014 Domain and trade names [Member] | Dec. 28, 2013 Domain and trade names [Member] | Jun. 29, 2013 Minimum [Member] Product design intellectual property [Member] | Jun. 28, 2014 Minimum [Member] Patent license agreement [Member] | Jun. 29, 2013 Maximum [Member] Product design intellectual property [Member] | Jun. 28, 2014 Maximum [Member] Patent license agreement [Member]
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Finite-lived intangible assets, Useful Life |  |  | 4 years |  |  |  | 10 years |  | 4 years | 4 years | 9 years | 5 years
Finite-lived intangible assets, Gross Carrying Amount | $ 4,386 | $ 3,949 | $ 2,750 | $ 2,750 | $ 437 | $ 0 | $ 1,199 | $ 1,199 |  |  |  |
Finite lived intangible assets, Accumulated Amort. and Impairment | (2,558) | (2,348) | (1,972) | (1,842) | (42) | 0 | (544) | (506) |  |  |  |
Finite-lived intangible assets, Net Carrying Amount | $ 1,828 | $ 1,601 | $ 778 | $ 908 | $ 395 | $ 0 | $ 655 | $ 693 |  |  |  |

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- Definition 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/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=26713463&loc=d3e16323-109275 + Details
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + 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 (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition 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. + References No definition available. + Details
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