Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Restricted Stock Activity (Detail)

v3.3.0.814
Stockholders' Equity - Restricted Stock Activity (Detail)
9 Months Ended
Sep. 30, 2015
$ / shares
shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Restricted stock granted 1,950,000
Restricted stock vested (250,000)
Unvested balance at September 30, 2015 1,700,000
Restricted Stock [Member]  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Unvested balance at December 31, 2014 8,287,384
Restricted stock granted 200,000
Restricted stock vested (816,449)
Restricted stock units granted 1,412,000
Restricted stock units vested (335,000)
Unvested balance at September 30, 2015 8,747,935
Unvested balance at December 31, 2014 | $ / shares $ 2.33
Restricted stock granted (Fair Value) | $ / shares 3.04
Restricted stock vested (Fair Value) | $ / shares 2.69
Restricted stock units granted (Fair Value) | $ / shares 3.58
Restricted stock units vested (Fair Value) | $ / shares 3.56
Unvested balance at September 30, 2015 | $ / shares $ 2.53