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Stock Plans | 6 Months Ended
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Sep. 30, 2025
Share-Based Payment Arrangement [Abstract] |
Stock Plans | Stock Plans The following table presents the stock-based compensation expense included in cost of revenues, sales and marketing, research and development, general and administrative and restructuring expenses for the three and six months ended September 30, 2025 and 2024. Stock-based compensation is attributable to RSUs, PSUs and the ESPP.
| Three Months Ended September 30, |  | Six Months Ended September 30,
| 2025 |  | 2024 |  | 2025 |  | 2024
Cost of revenues | $ | 1,323 |  |  | $ | 1,374 |  |  | $ | 2,572 |  |  | $ | 2,955 |
Sales and marketing | 12,757 |  |  | 11,631 |  |  | 25,343 |  |  | 21,117 |
Research and development | 7,752 |  |  | 5,555 |  |  | 14,822 |  |  | 10,719 |
General and administrative | 9,981 |  |  | 7,663 |  |  | 19,181 |  |  | 13,828 |
Restructuring | 411 |  |  | 180 |  |  | 486 |  |  | 4,188 |
Stock-based compensation expense | $ | 32,224 |  |  | $ | 26,403 |  |  | $ | 62,404 |  |  | $ | 52,807 |
As of September 30, 2025, there was $162,735 of unrecognized stock-based compensation expense that is expected to be recognized over a weighted average period of 1.59 years. We account for forfeitures as they occur. To the extent that awards are forfeited, stock-based compensation will be different from our current estimate. Restricted Stock Units Restricted stock unit activity for the six months ended September 30, 2025 was as follows:
Non-vested Restricted Stock Units | Number of Awards |  | Weighted Average Grant Date Fair Value
Non-vested as of March 31, 2025 | 1,806 |  |  | $ | 111.75 |
Awarded | 508 |  |  | 184.61 |
Vested | (721) |  |  | 97.18 |
Forfeited | (73) |  |  | 124.46 |
Non-vested as of September 30, 2025 | 1,520 |  |  | $ | 142.78 |
The weighted average fair value of RSUs awarded was $181.16 and 184.61 per unit during the three and six months ended September 30, 2025, respectively, and $142.87 and $122.00 per unit during the three and six months ended September 30, 2024, respectively. The weighted average fair value of awards includes the awards with a market condition described below. Performance Based Awards In the six months ended September 30, 2025, we granted approximately 78 PSUs to certain executives. Vesting of these awards is contingent upon i) us meeting certain non-GAAP performance goals (performance-based) in fiscal 2026 and ii) our customary service periods. The awards vest over three years and have the potential to vest between 0% and 300% (234 shares) based on actual fiscal 2026 performance. The vesting quantity of these awards may vary based on actual fiscal 2026 performance. The related stock-based compensation expense is determined based on the value of the underlying shares on the date of grant and is recognized over the vesting term using the accelerated method. During the interim financial periods, management estimates the probable number of PSUs that would vest until the ultimate achievement of the performance goals is known. The awards are included in the restricted stock units table. Awards with a Market Condition In the six months ended September 30, 2025, we granted approximately 78 market PSUs to certain executives. The vesting of these awards is contingent upon us meeting certain total shareholder return ("TSR") levels as compared to the Russell 3000 market index over the succeeding three years from grant date. The awards vest in three annual tranches and have the potential to vest between 0% and 300% (234 shares) based on TSR performance. The related stock-based compensation expense is determined based on the estimated fair value of the underlying shares on the date of grant and is recognized using the accelerated method over the vesting term. The estimated fair value was calculated using a Monte Carlo simulation model. The fair value of the awards granted during the six months ended September 30, 2025 was $288.47 per unit. The awards are included in the restricted stock units table. Employee Stock Purchase Plan The ESPP is a shareholder approved plan under which substantially all employees may purchase our common stock through payroll deductions at a price equal to 85% of the lower of the fair market values of the stock as of the beginning or the end of six-month offering periods. An employee’s payroll deductions under the ESPP are limited to 10% of the employee’s salary and employees may not purchase more than $25 of stock during any calendar year. Employees purchased 45 shares in exchange for $6,974 of proceeds in the six months ended September 30, 2025, and 68 shares in exchange for $5,486 of proceeds in the six months ended September 30, 2024. The ESPP is considered compensatory and the fair value of the discount and look back provision are estimated using the Black-Scholes formula and recognized over the six-month withholding period prior to purchase. The total expense associated with the ESPP for the six months ended September 30, 2025 and 2024 was $2,593 and $1,701, respectively. As of September 30, 2025, there was approximately $2,114 of unrecognized cost related to the current offering period of our ESPP.

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