Annual report pursuant to Section 13 and 15(d)

Compensation and Other Benefit Plans - Unvested RSU Activity (Details)

v3.3.1.900
Compensation and Other Benefit Plans - Unvested RSU Activity (Details) - Restricted Stock Units (RSUs) [Member]
12 Months Ended
Dec. 31, 2015
$ / shares
shares
Unvested RSU activity [Roll Forward]  
Unvested balance beginning of period (in shares) | shares 1,953,879
Granted (in shares) | shares 2,113,432
Vested (in shares) | shares (1,184,147)
Forfeited (in shares) | shares (757,403)
Unvested balance end of period (in shares) | shares 2,125,761
Unvested RSU activity, weighted average grant date fair value [Roll Forward]  
Unvested balance, beginning of period (in dollars per share) | $ / shares $ 5.46
Granted (in dollars per share) | $ / shares 3.25
Vested (in dollars per share) | $ / shares 4.64
Forfeited (in dollars per share) | $ / shares 4.48
Unvested balance, end of period (in dollars per share) | $ / shares $ 4.07