Equity Incentive Plans - Schedule of Stock Option Plan (Details)	6 Months Ended
	Jun. 30, 2018 $ / shares shares
Number of options
Number of options, Outstanding at beginning of year | shares	14,806,027
Number of options, Granted | shares	2,199,389
Number of options, Exercised | shares	(2,253,654)
Number of options, Forfeited and cancelled | shares	(127,262)
Number of options, Outstanding at ending of year | shares	14,624,500
Number of options, Exercisable options | shares	5,955,869
Weighted average exercise price
Weighted average exercise price, Outstanding at beginning of year | $ / shares	$ 10.64
Weighted average exercise price, Granted | $ / shares	22.31
Weighted average exercise price, Exercised | $ / shares	6.54
Weighted average exercise price, Forfeited and cancelled | $ / shares	14.59
Weighted average exercise price, Outstanding at end of year | $ / shares	12.99
Weighted average exercise price, Exercisable options | $ / shares	$ 10.20