Stock-Based Compensation - Stock Option Activity (Details) $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended	12 Months Ended
	Oct. 31, 2022 USD ($) $ / shares shares	Apr. 30, 2022 USD ($) $ / shares shares
Number of Stock Options Outstanding
Balance at beginning of period (in shares) | shares	36,338
Options granted (in shares) | shares	511
Options exercised (in shares) | shares	(577)
Options cancelled (in shares) | shares	(357)
Balance at end of period (in shares) | shares	35,915	36,338
Vested and exercisable at end of period (in shares) | shares	19,126
Vested and expected to vest at end of period (in shares) | shares	36,162
Weighted Average Exercise Price
Balance at beginning of period (in dollars per share) | $ / shares	$ 12.44
Options granted (in dollars per share) | $ / shares	13.74
Options exercised (in dollars per share) | $ / shares	16.34
Options cancelled (in dollars per share) | $ / shares	13.65
Balance at end of period (in dollars per share) | $ / shares	12.59	$ 12.44
Vested and exercisable at end of period (in dollars per share) | $ / shares	7.50
Vested and expected to vest at end of period (in dollars per share) | $ / shares	$ 12.59
Weighted Average Remaining Contractual Life (years)
Balance at beginning of period	6 years 11 months 4 days	7 years 4 months 2 days
Balance at end of period	6 years 11 months 4 days	7 years 4 months 2 days
Vested and exercisable at end of period	6 years 1 month 24 days
Vested and expected to vest at end of period	6 years 11 months 4 days
Aggregate Intrinsic Value
Balance at beginning of period | $	$ 18,676	$ 165,436
Balance at end of period | $	18,676	$ 165,436
Vested and exercisable at end of period | $	107,300
Vested and expected to vest at end of period | $	$ 18,804