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Stock-Based Compensation | 9 Months Ended
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Dec. 31, 2021
Share-based Payment Arrangement [Abstract] |
Stock-Based Compensation | Stock-Based Compensation Equity Plan Activity The following table summarizes stock option activity:
|  | Number of Shares |  | Weighted-Average Exercise Price (per share) |  | Weighted-Average Remaining Contractual Life (in years) |  | Aggregate Intrinsic Value (in thousands)
Options outstanding as of March 31, 2021 |  | 8,146,445 |  |  | $ | 4.01 |  |  | 6.86 |  | $ | 622,249 |
Granted |  | 642,507 |  |  | 71.12 |  |  |  |  |
Forfeited / Cancelled |  | (288,460) |  |  | 18.57 |  |  |  |  |
Exercised |  | (859,564) |  |  | 3.28 |  |  |  |  |
Options outstanding as of December 31, 2021 |  | 7,640,928 |  |  | $ | 9.17 |  |  | 6.21 |  | $ | 402,471 |
Vested and expected to vest (net of estimated forfeitures) at December 31, 2021 |  | 7,553,669 |  |  | $ | 8.88 |  |  | 6.18 |  | $ | 399,790 |
Exercisable as of December 31, 2021 |  | 5,813,445 |  |  | $ | 4.19 |  |  | 5.48 |  | $ | 331,487 |
At December 31, 2021 and 2020, total unrecognized stock-based compensation expense related to unvested stock options, net of estimated forfeitures, was $24,233 and $6,495, respectively, with expected remaining weighted-average recognition periods of 2.26 years and 2.12 years, respectively. The following table summarizes restricted stock unit ("RSU") and restricted stock award ("RSA") activity:
|  | Number of Shares |  | Weighted-Average Grant Date Fair Value
Unvested restricted shares outstanding as of March 31, 2021 |  | 333,544 |  |  | $ | 4.55 |
Granted |  | 332,061 |  |  | 45.62 |
Vested |  | (298,350) |  |  | 3.69 |
Cancelled |  | (3,526) |  |  | 13.88 |
Unvested restricted shares outstanding as of December 31, 2021 |  | 363,729 |  |  | $ | 42.65 |
At December 31, 2021 and 2020, total unrecognized stock-based compensation expense related to RSUs and RSAs was $9,448 and $1,463, respectively, with expected remaining weighted-average recognition periods of 1.86 years and 2.01 years, respectively. Stock-Based Compensation ExpenseAs of December 31, 2021, 11,304,613 shares of common stock were available for issuance as future awards under the Company's equity incentive plans. Stock-based compensation expense for the three and nine months ended December 31, 2021, was $5,739 and $15,369, respectively, and was recorded within general and administrative expenses on the condensed consolidated statements of operations and comprehensive income. Stock-based compensation expense for the three and nine months ended December 31, 2020, was $160 and $4,286, respectively, and was recorded within general and administrative expenses on the condensed consolidated statements of operations and comprehensive income.

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- Definition The entire disclosure for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -URI http://asc.fasb.org/topic&trid=2228938 + Details
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