v2.4.0.8
Intangible Assets - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 28, 2013
Dec. 29, 2012
Dec. 31, 2011
Goodwill and Intangible Assets Disclosure [Abstract]      
Amortization expense $ 2.7 $ 2.1 $ 1.6
Intangible assets as part of acquisitions   14.6  
Intangible assets acquired aggregate value customer relationship   7.2  
Intangible assets acquired aggregate value acquired technology   5.3  
Intangible assets acquired aggregate value trademarks   1.1  
Intangible assets acquired aggregate value patents   $ 1.0  
Acquired finite lived intangible assets weighted average useful life   10 years