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Stock-Based Compensation (Tables) | 6 Months Ended
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Jun. 30, 2024
Share-Based Payment Arrangement [Abstract] |
Schedule of Stock Option Activity | The following table summarizes the stock option, restricted stock unit ("RSU") and performance stock unit ("PSU") activity for the six months ended June 30, 2024:
| Options |  | RSUs |  | PSUs
| Number of options |  | Weighted - average exercise price |  | Number of RSUs |  | Weighted - average grant date fair value |  | Number of PSUs |  | Weighted - average grant date fair value
Outstanding at January 1, 2024 | 7,523,971 |  |  | $ | 14.19 |  |  | 3,864,319 |  |  | $ | 23.60 |  |  | 3,373,417 |  |  | $ | 4.02 |
Granted | — |  |  | $ | — |  |  | 2,361,162 |  |  | $ | 12.47 |  |  | 320,000 |  |  | $ | 11.58 |
Exercised or released | (429,681) |  |  | $ | 4.77 |  |  | (913,865) |  |  | $ | 20.70 |  |  | — |  |  | $ | — |
Forfeited, cancelled or expired | (1,367,699) |  |  | $ | 6.82 |  |  | (235,023) |  |  | $ | 21.10 |  |  | — |  |  | $ | — |
Outstanding at June 30, 2024 | 5,726,591 |  |  | $ | 16.65 |  |  | 5,076,593 |  |  | $ | 19.06 |  |  | 3,693,417 |  |  | $ | 4.67 |
Schedule of RSU Activity | The following table summarizes the stock option, restricted stock unit ("RSU") and performance stock unit ("PSU") activity for the six months ended June 30, 2024:
| Options |  | RSUs |  | PSUs
| Number of options |  | Weighted - average exercise price |  | Number of RSUs |  | Weighted - average grant date fair value |  | Number of PSUs |  | Weighted - average grant date fair value
Outstanding at January 1, 2024 | 7,523,971 |  |  | $ | 14.19 |  |  | 3,864,319 |  |  | $ | 23.60 |  |  | 3,373,417 |  |  | $ | 4.02 |
Granted | — |  |  | $ | — |  |  | 2,361,162 |  |  | $ | 12.47 |  |  | 320,000 |  |  | $ | 11.58 |
Exercised or released | (429,681) |  |  | $ | 4.77 |  |  | (913,865) |  |  | $ | 20.70 |  |  | — |  |  | $ | — |
Forfeited, cancelled or expired | (1,367,699) |  |  | $ | 6.82 |  |  | (235,023) |  |  | $ | 21.10 |  |  | — |  |  | $ | — |
Outstanding at June 30, 2024 | 5,726,591 |  |  | $ | 16.65 |  |  | 5,076,593 |  |  | $ | 19.06 |  |  | 3,693,417 |  |  | $ | 4.67 |
Schedule of Stock Based Compensation Expense | The following table summarizes the components of stock-based compensation expense recognized for the periods presented:
| Three months ended June 30, |  | Six months ended June 30,
(in thousands) | 2024 |  | 2023 |  | 2024 |  | 2023
Cost of services | $ | 501 |  |  | $ | 1,038 |  |  | $ | 1,181 |  |  | $ | 1,915 |
Selling, general, and administrative expense | 10,620 |  |  | 14,002 |  |  | 20,175 |  |  | 26,589 |
Total | $ | 11,121 |  |  | $ | 15,040 |  |  | $ | 21,356 |  |  | $ | 28,504 |

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