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v3.23.1

Stock Based Compensation, Share Option Valuation (Details) - Stock Options [Member] - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022
Stock Option Activity [Roll Forward] |  |  |
Outstanding at beginning of period (in shares) | 13,138,870 |  |
Granted (in shares) | 1,792,097 |  |
Exercised (in shares) | (88,429) |  |
Cancelled (in shares) | (191,148) |  |
Outstanding at end of period (in shares) | 14,651,390 |  | 13,138,870
Options vested and exercisable at end of period (in shares) | 10,586,141 |  |
Options unvested at ending of period (in shares) | 4,065,249 |  |
Weighted Average Exercise Price [Abstract] |  |  |
Outstanding at beginning of period (in dollars per share) | $ 14.52 |  |
Granted (in dollars per share) | 20.36 |  |
Exercised (in dollars per share) | 12.59 |  |
Cancelled (in dollars per share) | 33.99 |  |
Outstanding at end of period (in dollars per share) | 14.99 |  | $ 14.52
Options vested and exercisable at end of period (in dollars per share) | 12.6 |  |
Options unvested at ending (in dollars per share) | $ 21.24 |  |
Weighted-Average Remaining Contractual Term [Abstract] |  |  |
Outstanding | 5 years 10 months 6 days |  | 5 years 5 months 15 days
Granted | 6 years 10 months 9 days |  |
Options vested and exercisable | 4 years 6 months 7 days |  |
Options unvested | 9 years 3 months 25 days |  |
Aggregate Intrinsic Value [Abstract] |  |  |
Outstanding at beginning of period | $ 118,767 |  |
Exercised | 631 |  |
Outstanding at end of period | 97,263 |  | $ 118,767
Options vested and exercisable | 92,808 |  |
Options unvested | $ 4,455 |  |
Weighted average grant date fair value of shares granted (in dollars per share) | $ 13.5 | $ 11.6 |
Total fair value of options vested | $ 11,400 | $ 12,500 |
Employees and Directors [Member] |  |  |
Weighted-Average Assumptions [Abstract] |  |  |
Risk-free interest rate | 4.02% | 1.88% |
Expected term | 5 years 10 months 17 days | 5 years 10 months 9 days |
Expected volatility | 73.54% | 74.07% |
Expected dividend yield | 0.00% | 0.00% |
Exercise price (in dollars per share) | $ 20.17 | $ 17.85 |
Fair value of common stock (in dollars per share) | $ 20.17 | $ 17.85 |

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