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Equity (Tables)
 6 Months Ended
Sep. 30, 2025
Share-Based Payment Arrangement [Abstract]  
Schedule of Common Stock Reserved for Issuance
The Company has shares of common stock reserved for issuance as follows (in thousands):
September 30, 2025
Common stock warrants229 
2010 Plan
Options outstanding9,315 
2021 Plan
Awards outstanding
4,658 
Shares available for future grant43,634 
2021 ESPP11,598 
Options outstanding outside the Plans
2,568 
Total72,002 
Schedule of Stock Option Activity
Stock option activities within the Plans as well as outside of the Plans were as follows:
Number of Shares
(in thousands)
Weighted-Average
Exercise Price
Average Remaining Contractual Term
(in years)
Aggregate Intrinsic Value
(in thousands)
Balance, March 31, 202513,013 $4.82 4.92$692,422 
Options exercised(1,031)4.07 
Options forfeited or expired(99)6.71 
Balance, September 30, 202511,883 4.87 4.40811,385 
Vested and exercisable as of September 30, 20259,809 4.24 4.20675,959 
Vested and expected to vest as of September 30, 202511,883 4.87 4.40811,385 
Schedule of Restricted Stock Unit Activity
The following table summarizes RSU activity (in thousands, except per share information):
Number of Shares
Weighted-
Average
Grant Date Fair Value
Unvested balance, March 31, 20253,347 $31.66 
Granted1,570 60.13 
Vested(1,031)35.73 
Forfeited(242)34.65 
Unvested balance, September 30, 20253,644 42.58 
Schedule of Stock-Based Compensation Expense
Total stock-based compensation expense recognized in the condensed consolidated statements of operations was as follows (in thousands):
Three Months Ended September 30,Six Months Ended September 30,
2025202420252024
Cost of revenue$2,844 $2,661 $5,824 $5,555 
Research and development9,862 5,447 16,511 10,131 
Sales and marketing10,508 6,808 18,218 13,394 
General and administrative6,260 2,952 10,786 5,878 
Total stock-based compensation expense$29,474 $17,868 $51,339 $34,958