Equity-Based Compensation - Stock Option Activity (Details) - Stock Options $ / shares in Units, shares in Thousands, $ in Thousands	9 Months Ended	12 Months Ended
	Jan. 31, 2022 USD ($) $ / shares shares	Apr. 30, 2021 USD ($) $ / shares shares
Number of Options
Outstanding, beginning of the period (in shares) | shares	1,289
Options granted (in shares) | shares	208
Options exercised (in shares) | shares	(197)
Options forfeited (in shares) | shares	(15)
Outstanding, end of the period (in shares) | shares	1,285	1,289
Exercisable at end of period (in shares) | shares	758
Vested and expected to vest at end of period (in shares) | shares	1,281
Weighted Average Exercise Price
Outstanding, beginning of period (in dollars per share) | $ / shares	$ 20.86
Options granted (in dollars per share) | $ / shares	49.77
Options exercised (in dollars per share) | $ / shares	20.58
Options forfeited (in dollars per share) | $ / shares	23.06
Outstanding, end of the period (in dollars per share) | $ / shares	25.56	$ 20.86
Exercisable at end of period (in dollars per share) | $ / shares	20.09
Vested and expected to vest at end of period (in dollars per share) | $ / shares	$ 25.51
Other disclosures
Weighted Average Remaining Contractual Life, Outstanding (in years)	6 years 7 months 6 days	6 years 9 months 18 days
Weighted Average Remaining Contractual Life, Exercisable at end of period (in years)	5 years 1 month 6 days
Weighted Average Remaining Contractual Life, Vested and expected to vest at end of period (in years)	6 years 7 months 6 days
Aggregate Intrinsic Value, Outstanding | $	$ 33,023	$ 29,465
Aggregate Intrinsic Value, Exercisable at end of period | $	23,558
Aggregate Intrinsic Value, Vested and expected to vest at end of period | $	$ 32,960