Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Restricted Stock Activity (Detail)

v3.2.0.727
Stockholders' Equity - Restricted Stock Activity (Detail) - 6 months ended Jun. 30, 2015 - Restricted Stock [Member] - $ / shares
shares in Thousands
Total
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 (783,115)
Restricted stock units granted 61,000
Restricted stock units vested (25,000)
Unvested balance at June 30, 2015 7,740,269
Unvested balance at December 31, 2014 $ 2.33
Restricted stock granted (Fair Value) 3.04
Restricted stock vested (Fair Value) 2.43
Restricted stock units granted (Fair Value) 2.34
Restricted stock units vested (Fair Value) 2.19
Unvested balance at June 30, 2015 $ 2.34