Equity-based compensation (Tables)

3 Months Ended

Apr. 30, 2020

Share-based Payment Arrangement [Abstract]

Schedule of stock option activity

Stock option activity for the three months ended April 30, 2020 is as follows:

	Number of options	Weighted- average exercise price		Weighted- average remaining contractual life (in years)	Aggregate Intrinsic value
Outstanding — January 31, 2020	5,516,452	$	3.80
Granted in three months ended April 30, 2020	—	—
Exercised	(943,222)	1.84
Forfeited and expired	(47,967)	$	6.98
Outstanding and expected to vest — April 30, 2020	4,525,263	$	4.17	6.35	$	96,178
Exercisable — April 30, 2020	2,997,882	$	2.66	5.28	$	68,142
Amount vested in three months ended April 30, 2020	140,333	$	4.28

Schedule of restricted stock unit activity

Restricted stock unit activity for the three months ended April 30, 2020 are as follows: 

	Restricted stock units
Outstanding, February 1, 2020	1,447,418
Granted in three months ended April 30, 2020	515,376
Vested	(53,778)
Forfeited and expired	(28,510)
Outstanding, April 30, 2020	1,880,506