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Equity - Narrative (Details) $ in Thousands	1 Months Ended		3 Months Ended		6 Months Ended
Equity - Narrative (Details) $ in Thousands	Jun. 30, 2022 shares	May 31, 2021 USD ($) shares	Jul. 31, 2024 USD ($) distribution shares	Jul. 31, 2023 USD ($) shares	Jul. 31, 2024 USD ($) distribution shares	Jul. 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			$ 48,969	$ 46,368	$ 91,221	$ 78,698
Compensation expense not yet recognized			$ 12,900		12,900
Grant date fair value of RSUs granted		$ 8,800
Offering period (in months)			24 months
Tax benefit for stock-based compensation expense			$ 0	3,600	$ 0	6,400
Number of distributions, donation \| distribution			4		4
Charitable donation of common stock			$ 2,957	2,675	$ 5,914	5,350
Shares subject to outstanding common stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense			3,400	4,700	$ 6,900	9,500
Period for recognition (in years)					1 year 2 months 12 days
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense			41,300	29,900	$ 76,800	53,200
Period for recognition (in years)					2 years 10 months 24 days
Compensation expense not yet recognized			450,600		$ 450,600
RSUs \| Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense			300	400	$ 700	800
Period for recognition (in years)					4 years 3 months 18 days
Compensation expense not yet recognized			3,600		$ 3,600
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			300	(100)	$ 900	300
Period for recognition (in years)					1 year 4 months 24 days
Compensation expense not yet recognized			1,700		$ 1,700
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			3,500	$ 6,700	$ 6,100	$ 11,200
Period for recognition (in years)					1 year 9 months 18 days
Compensation expense not yet recognized			11,400		$ 11,400
Plan modification, cost not yet recognized			$ 1,000		$ 1,000
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			67,015	52,647	120,241	133,389
Charitable donation of common stock			$ 2,900	$ 2,700	$ 5,900	$ 5,300