Equity Incentive Plan - Schedule of Stock Option Plan (Details)	6 Months Ended
	Jun. 30, 2016 $ / shares shares
Number of options
Number of options, Outstanding at beginning of year | shares	10,134,829
Number of options, Granted | shares	2,127,275
Number of options, Exercised | shares	(825,240)
Number of options, Forfeited and cancelled | shares	(78,243)
Number of options, Outstanding at ending of year | shares	11,358,621
Number of options, Exercisable options | shares	5,586,108
Number of options, Vested and expected to vest | shares	11,157,637
Weighted average exercise price
Weighted average exercise price, Outstanding at beginning of year | $ / shares	$ 8.20
Weighted average exercise price, Granted | $ / shares	13.86
Weighted average exercise price, Exercised | $ / shares	0.21
Weighted average exercise price, Forfeited and cancelled | $ / shares	17.86
Weighted average exercise price, Outstanding at end of year | $ / shares	9.77
Weighted average exercise price, Exercisable options | $ / shares	4.86
Weighted average exercise price, Vested and expected to vest | $ / shares	$ 9.71