Employee and Consultant Equity-Based Compensation - Stock Option Activity (Details)	6 Months Ended
	Jun. 30, 2016 $ / shares shares
Number of Shares
Outstanding, beginning balance (shares) | shares	6,167,170
Granted (shares) | shares	899,600
Forfeited (shares) | shares	(119,706)
Exercised (shares) | shares	(27,233)
Expired (shares) | shares	(1,789)
Outstanding, ending balance (shares) | shares	6,918,042
Weighted Average Exercise Price Per Share
Outstanding, beginning balance (dollars per share) | $ / shares	$ 6.91
Granted (dollars per share) | $ / shares	13.09
Forfeited (dollars per share) | $ / shares	20.06
Exercised (dollars per share) | $ / shares	3.49
Expired (dollars per share) | $ / shares	13.49
Outstanding, ending balance (dollars per share) | $ / shares	$ 7.49