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Equity - Narrative (Details) $ in Thousands	1 Months Ended		3 Months Ended		9 Months Ended
Equity - Narrative (Details) $ in Thousands	Jun. 30, 2022 shares	May 31, 2021 USD ($) shares	Oct. 31, 2024 USD ($) distribution shares	Oct. 31, 2023 USD ($) shares	Oct. 31, 2024 USD ($) distribution shares	Oct. 31, 2023 USD ($) shares	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($)	Sep. 30, 2021 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense			$ 48,042	$ 41,334	$ 139,263	$ 120,032
Compensation expense not yet recognized			9,600		9,600
Grant date fair value of RSUs granted		$ 8,800
Tax benefit for stock-based compensation expense			$ 0	0	$ 0	0
Number of distributions, donation \| distribution			4		4
Charitable donation of common stock			$ 2,957	2,675	$ 8,871	8,025
Shares subject to outstanding common stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense			3,100	4,300	$ 10,000	13,800
Period for recognition (in years)					1 year 1 month 6 days
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense			40,300	31,700	$ 117,100	84,900
Period for recognition (in years)					2 years 8 months 12 days
Compensation expense not yet recognized			401,700		$ 401,700
RSUs \| Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense			300	400	$ 1,000	1,200
Period for recognition (in years)					4 years 1 month 6 days
Compensation expense not yet recognized			3,300		$ 3,300
RSUs \| Minimum \| Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period for recognition (in years)					3 years
RSUs \| Maximum \| Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period for recognition (in years)					7 years
PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense			900	400	$ 1,800	700
Period for recognition (in years)					1 year 1 month 6 days
Compensation expense not yet recognized			1,400		$ 1,400
RSUs granted in period (in shares) \| shares	400,000
Award vesting percentage	100.00%
PSUs \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage	0.00%
PSUs \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage	200.00%
2021 Equity Incentive Plan \| RSUs \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)					2 years
2021 Equity Incentive Plan \| RSUs \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)					4 years
2021 Employee Stock Purchase Plan \| ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense			2,500	$ 4,000	$ 8,600	$ 15,200
Period for recognition (in years)					1 year 7 months 6 days
Compensation expense not yet recognized			$ 8,500		$ 8,500
Class B Common Stock \| RSUs \| Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSUs granted in period (in shares) \| shares		3,000,000
Class A Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for future issuance (in shares) \| shares									1,635,545
Aggregate principal amount, donation							$ 11,800	$ 10,700
Charitable donation of common stock (in shares) \| shares			52,940	53,510	173,181	186,899
Charitable donation of common stock			$ 3,000	$ 2,700	$ 8,900	$ 8,000