Equity-based compensation - Schedule of Stock Option Activity (Details) $ / shares in Units, $ in Thousands	3 Months Ended
	Apr. 30, 2024 USD ($) $ / shares shares
Number of options
Number of options outstanding, beginning (in shares) | shares	1,123,438
Granted (in shares) | shares	0
Exercised (in shares) | shares	(80,861)
Forfeited and expired (in shares) | shares	(3,079)
Number of options outstanding, ending (in shares) | shares	1,039,498
Exercisable (in shares) | shares	1,039,498
Weighted- average exercise price
Weighted- average exercise price outstanding, beginning balance (in dollars per share) | $ / shares	$ 6.89
Granted (in dollars per share) | $ / shares	0
Exercised (in dollars per share) | $ / shares	4.34
Forfeited and expired (in dollars per share) | $ / shares	23.42
Weighted- average exercise price outstanding, ending balance (in dollars per share) | $ / shares	7.04
Exercisable (in dollars per share) | $ / shares	$ 7.04
Outstanding and expected to vest- end of the period	4 years 4 months 24 days
Exercisable- end of period	4 years 4 months 24 days
Aggregate intrinsic value outstanding and expected to vest | $	$ 14,242
Aggregate intrinsic value exercisable | $	$ 14,242