Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets - Additional Information (Detail)

v2.4.0.8
Intangible Assets - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 28, 2013
Jun. 29, 2013
Dec. 29, 2012
Sep. 29, 2012
Sep. 28, 2013
Sep. 29, 2012
Finite-Lived Intangible Assets [Line Items]            
Impairment loss on intangible assets, finite-lived   $ 1,245 $ 1,745   $ 1,245 $ 0
Fair value discount rate         14.50%  
Fair value royalty rate         1.00%  
Amortization expense relating to intangible assets 86     331 299 1,012
Product Design Intellectual Property [Member]
            
Finite-Lived Intangible Assets [Line Items]            
Impairment loss on intangible assets, finite-lived   838        
Domain and Trade Names [Member]
            
Finite-Lived Intangible Assets [Line Items]            
Impairment loss on intangible assets, finite-lived   407        
Fair value royalty rate         0.10%  
Intellectual Property [Member]
            
Finite-Lived Intangible Assets [Line Items]            
Fair value royalty rate         1.00%  
Product Design Intellectual Property Domain and Trade Names [Member]
            
Finite-Lived Intangible Assets [Line Items]            
Impairment loss on intangible assets, finite-lived           $ 0