Equity Incentive Plan - Schedule of Stock Option Plan (Details)	9 Months Ended
	Sep. 30, 2016 $ / shares shares
Number of options
Number of options, Outstanding at beginning of year | shares	10,134,829
Number of options, Granted | shares	2,363,575
Number of options, Exercised | shares	(828,787)
Number of options, Forfeited and cancelled | shares	(133,364)
Number of options, Outstanding at ending of year | shares	11,536,253
Number of options, Exercisable options | shares	5,887,411
Number of options, Vested and expected to vest | shares	11,329,415
Weighted average exercise price
Weighted average exercise price, Outstanding at beginning of year | $ / shares	$ 8.20
Weighted average exercise price, Granted | $ / shares	13.61
Weighted average exercise price, Exercised | $ / shares	0.24
Weighted average exercise price, Forfeited and cancelled | $ / shares	17.19
Weighted average exercise price, Outstanding at end of year | $ / shares	9.78
Weighted average exercise price, Exercisable options | $ / shares	5.05
Weighted average exercise price, Vested and expected to vest | $ / shares	$ 9.71