Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation - Unvested RSU Activity (Details)

v3.5.0.2
Stock-based Compensation - Unvested RSU Activity (Details) - Restricted Stock Units (RSUs) [Member] - $ / shares
1 Months Ended 6 Months Ended
Feb. 29, 2016
Jun. 30, 2016
Unvested RSU activity [Roll Forward]    
Unvested balance beginning of period (in shares)   2,125,761
Granted, shares 2,300,000 2,302,944
Vested (in shares)   (1,132,525)
Forfeited (in shares)   (298,228)
Unvested balance end of period (in shares)   2,997,952
Unvested RSU activity, weighted average grant date fair value [Roll Forward]    
Unvested balance, beginning of period (in dollars per share)   $ 4.07
Granted (in dollars per share)   0.76
Vested (in dollars per share)   3.27
Forfeited (in dollars per share)   2.87
Unvested balance, end of period (in dollars per share)   $ 1.95