Share Capital - Schedule of Stock Option Plan (Details)	9 Months Ended
	Sep. 30, 2019 $ / shares shares
Number of options
Number of options, beginning outstanding (in shares) | shares	14,438,215
Number of options, granted (in shares) | shares	1,496,161
Number of options, exercised (in shares) | shares	(4,914,918)
Number of options, forfeited and canceled (in shares) | shares	(144,403)
Number of options, ending outstanding (in shares) | shares	10,875,055
Number of options, exercisable options (in shares) | shares	3,444,478
Weighted average exercise price
Weighted average exercise price, beginning outstanding (in usd per share) | $ / shares	$ 13.56
Weighted average exercise price, granted (in usd per share) | $ / shares	49.43
Weighted average exercise price, exercised (in usd per share) | $ / shares	10.55
Weighted average exercise price, forfeited and canceled (in usd per share) | $ / shares	19.91
Weighted average exercise price, ending outstanding (in usd per share) | $ / shares	19.77
Weighted average exercise price, exercisable options (in usd per share) | $ / shares	$ 14.61