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Stock Plans - Additional Information (Details) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2025 USD ($) $ / shares	Sep. 30, 2024 USD ($) $ / shares	Sep. 30, 2025 USD ($) tranche $ / shares shares	Sep. 30, 2024 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation expense | $	$ 162,735		$ 162,735
Weighted average period awards are expected to be recognized			1 year 7 months 2 days
Compensation expense | $	$ 32,224	$ 26,403	$ 62,404	$ 52,807
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair value, units awarded (in dollars per share) | $ / shares	$ 181.16	$ 142.87	$ 184.61	$ 122.00
Number of awards granted (in shares) | shares			508
PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of awards granted (in shares) | shares			78
Service period			3 years
PSUs | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards potential to vest, percentage			0.00%
PSUs | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards potential to vest, percentage			300.00%
Awards potential to vest (in shares) | shares			234
Market performance shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair value, units awarded (in dollars per share) | $ / shares			$ 288.47
Number of awards granted (in shares) | shares			78
Service period			3 years
Number of annual tranches | tranche			3
Market performance shares | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards potential to vest, percentage			0.00%
Market performance shares | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards potential to vest, percentage			300.00%
Awards potential to vest (in shares) | shares			234
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation expense | $	$ 2,114		$ 2,114
Purchase price as a percentage of fair market value			85.00%
Length of offering period (in months)			6 months
Maximum employee payroll percent deduction of salary	10.00%		10.00%
Maximum amount of stock purchasable by employees within a calendar year | $			$ 25
Number of shares purchased by employees (in shares) | shares			45	68
Proceeds received | $			$ 6,974	$ 5,486
Compensation expense | $			$ 2,593	$ 1,701

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