Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Additional Information (Detail)

v2.4.0.8
Income Taxes - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 27, 2014
Sep. 28, 2013
Sep. 27, 2014
Sep. 28, 2013
Income Tax Disclosure [Abstract]        
Likelihood of being realized upon ultimate settlement     greater than 50 percent likelihood of being realized upon ultimate settlement  
Material unrecognized tax benefits interest or penalties     $ 0  
Effective tax rate (0.60%) (0.10%) (1.60%) (0.60%)