Stock-Based Compensation - Stock Options (Details) - Stock options	3 Months Ended
	Apr. 30, 2022 $ / shares shares
Number of Options
Outstanding, beginning of period (in shares) | shares	42,422,473
Granted (in shares) | shares	0
Exercised (in shares) | shares	(2,018,597)
Forfeited (in shares) | shares	(479,224)
Outstanding, end of period (in shares) | shares	39,924,652
Vested and exercisable, Number (in shares) | shares	18,831,095
Weighted-Average Exercise Price
Outstanding, beginning of period (in USD per share) | $ / shares	$ 4.30
Granted (in USD per share) | $ / shares	0
Exercised (in USD per share) | $ / shares	2.52
Forfeited (in USD per share) | $ / shares	5.55
Outstanding, end of period (in USD per share) | $ / shares	4.37
Vested and exercisable, Weighted average (in USD per share) | $ / shares	$ 2.83