Quarterly report pursuant to Section 13 or 15(d)

Common Stock, Share-based Awards and Warrants - Restricted Stock Units (Details)

v3.5.0.2
Common Stock, Share-based Awards and Warrants - Restricted Stock Units (Details) - Restricted Stock Units
$ / shares in Units, shares in Thousands, $ in Thousands
9 Months Ended
Sep. 30, 2016
USD ($)
$ / shares
shares
Units:  
Outstanding, beginning balance (in shares) | shares 408
Granted (in shares) | shares 1,359
Vested (in shares) | shares (87)
Forfeited (in shares) | shares (93)
Nonvested, ending balance (in shares) | shares 1,587
Vested and expected to vest, ending balance (in shares) | shares 980
Weighted Average Exercise Price (in usd per share):  
Outstanding, beginning balance (usd per share) | $ / shares $ 12.71
Granted (usd per share) | $ / shares 8.01
Vested (usd per share) | $ / shares 12.79
Forfeited (usd per share) | $ / shares 11.62
Nonvested, ending balance (usd per share) | $ / shares 8.74
Vested and expected to vest, ending balance (usd per share) | $ / shares $ 8.74
Nonvested, aggregate intrinsic value at end of period | $ $ 13,180
Vested and expected to vest, aggregate intrinsic value at end of period | $ $ 7,938