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v3.21.2

Stockholders' Equity (Summary of Option Activity) (Details) - USD ($) $ / shares in Units, $ in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Apr. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Options |  |  |  |  |
Outstanding Options, Beginning of period |  |  |  | 8,580,475 |
Options granted |  |  |  | 1,436,929 |
Options exercised |  |  |  | (899,436) |
Options cancelled |  |  |  | (155,784) |
Options expired |  |  |  | (56,826) |
Outstanding Options, End of period |  | 8,905,358 |  | 8,905,358 |
Exercisable at the end of period |  | 6,021,669 |  | 6,021,669 |
Weighted-Average Exercise Price |  |  |  |  |
Outstanding Exercise Price (in dollars per share) |  |  |  | $ 15.00 |
Options granted (in dollars per share) |  |  |  | 18.25 |
Options exercised (in dollars per share) |  |  |  | 13.49 |
Options cancelled (in dollars per share) |  |  |  | 17.02 |
Options expired (in dollars per share) |  |  |  | 14.67 |
Outstanding Exercise Price (in dollars per share) |  | $ 15.65 |  | 15.65 |
Exercisable at the end of period (in dollars per share) |  | $ 15.11 |  | $ 15.11 |
Additional Disclosures |  |  |  |  |
Contractual term |  |  |  | 5 years 4 months 2 days |
Outstanding Intrinsic Value |  | $ 33,500 |  | $ 33,500 |
Exercisable remaining contractual term (in Years) |  |  |  | 3 years 10 months 24 days |
Exercisable aggregate intrinsic value |  | 26,145 |  | $ 26,145 |
Allocated share based compensation |  | 3,919 | $ 4,370 | 14,837 | $ 16,165
Employee Stock Option |  |  |  |  |
Additional Disclosures |  |  |  |  |
Allocated share based compensation |  | $ 1,900 | $ 1,900 | $ 6,200 | 7,100
Employee Stock Option | President, General Counsel and member of board of directors |  |  |  |  |
Additional Disclosures |  |  |  |  |
Allocated share based compensation |  |  |  |  | $ 700
Vesting (percent) | 80.00% |  |  |  |

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