Share Capital - Schedule of Stock Option Plan (Details)	6 Months Ended
	Jun. 30, 2019 $ / shares shares
Number of options
Number of options, Outstanding at beginning of year | shares	14,438,215
Number of options, Granted | shares	1,411,781
Number of options, Exercised | shares	(3,837,716)
Number of options, Forfeited and cancelled | shares	(86,223)
Number of options, Outstanding at ending of year | shares	11,926,057
Number of options, Exercisable options | shares	4,348,026
Weighted average exercise price
Weighted average exercise price, Outstanding at beginning of year | $ / shares	$ 13.56
Weighted average exercise price, Granted | $ / shares	47.40
Weighted average exercise price, Exercised | $ / shares	9.91
Weighted average exercise price, Forfeited and cancelled | $ / shares	16.87
Weighted average exercise price, Outstanding at end of year | $ / shares	18.72
Weighted average exercise price, Exercisable options | $ / shares	$ 13.82