Annual report pursuant to Section 13 and 15(d)

Stock Plans and Stock-Based Compensation - Restricted Stock Activity (Detail)

v2.4.0.8
Stock Plans and Stock-Based Compensation - Restricted Stock Activity (Detail) (Restricted Stock [Member], USD $)
12 Months Ended
Dec. 31, 2013
Restricted Stock [Member]
 
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Unvested balance at December 31, 2012 0
Restricted stock granted 3,958,692
Restricted stock vested 0
Restricted stock forfeited 0
Unvested balance at December 31, 2013 3,958,692
Unvested balance at December 31, 2012 $ 0
Restricted stock granted (Fair Value) $ 1.93
Unvested balance at December 31, 2013 $ 1.93