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Stock-Based Compensation | 3 Months Ended
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Jun. 30, 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 |  | 415,185 |  |  | 73.45 |  |  |  |  |
Forfeited / Cancelled |  | (121,187) |  |  | 5.40 |  |  |  |  |
Exercised |  | (178,127) |  |  | 3.90 |  |  |  |  |
Options outstanding as of June 30, 2021 |  | 8,262,316 |  |  | $ | 7.48 |  |  | 6.77 |  | $ | 567,952 |
Vested and expected to vest (net of estimated forfeitures) at June 30, 2021 |  | 8,117,035 |  |  | $ | 7.18 |  |  | 6.73 |  | $ | 560,286 |
Exercisable as of June 30, 2021 |  | 5,748,775 |  |  | $ | 2.84 |  |  | 5.89 |  | $ | 420,873 |
At June 30, 2021 and 2020, total unrecognized stock-based compensation expense related to unvested stock options, net of estimated forfeitures, was $23,621 and $7,658, respectively, with expected remaining weighted-average recognition periods of 2.52 years and 2.42 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 |  | 279,303 |  |  | 42.43 |
Vested |  | (276,010) |  |  | 2.51 |
Cancelled |  | (3,526) |  |  | 13.88 |
Unvested restricted shares outstanding as of June 30, 2021 |  | 333,311 |  |  | $ | 37.88 |
At June 30, 2021 and 2020, total unrecognized stock-based compensation expense related to RSUs and RSAs was $11,400 and $1,101, respectively, with expected remaining weighted-average recognition periods of 2.74 years and 2.37 years, respectively. Stock-Based Compensation Expense As of June 30, 2021, 11,612,158 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 months ended June 30, 2021 and 2020 was $3,705 and $1,610, 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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- References No definition available. + Details
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