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Stock-based Compensation - Compensation Awards (Details) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Employee Stock Option |  |  |
Number of outstanding options |  |  |
Balance at the beginning of the period (in shares) | 1,499,000 |  |
Granted (in shares) | 1,062,000 |  |
Exercised (in shares) | (80,000) |  |
Released RSUs/RSAs (in shares) | 0 |  |
Forfeited (in shares) | (414,000) |  |
Balance at the end of the period (in shares) | 2,067,000 | 1,499,000 |
Vested and expected to vest at the end of the period (in shares) | 2,067,000 |  |
Weighted-Average Exercise Price of Outstanding Options |  |  |
Balance at the beginning of the period (in dollars per share) | $ 14.09 |  |
Granted (in dollars per share) | 16.67 |  |
Exercised (in dollars per share) | 12.88 |  |
Released RSUs/RSAs (in shares) | 0 |  |
Forfeited (in dollars per share) | 15.24 |  |
Balance at the end of the period (in dollars per share) | 15.23 | $ 14.09 |
Vested and expected to vest at the end of the period (in dollars per shares) | $ 15.23 |  |
Additional disclosures |  |  |
Aggregate intrinsic value of options outstanding | $ 5.0 | $ 3.6 |
Aggregate intrinsic value of options exercisable | $ 2.4 | $ 0.8 |
Exercisable option | 759,904 |  |
Weighted average remaining contractual term of options exercisable | 8 years 14 days | 7 years 11 months 15 days |
Total intrinsic value of options exercised | $ 0.0 | $ 0.0 | $ 0.0
Total estimated fair value of options vested | $ 2.5 | $ 1.9 | 0.0
RSUs |  |  |
Number of outstanding RSUs and PSUs/RSAs and PSAs |  |  |
Balance at the beginning of the period (in shares) | 482,000 |  |
Granted (in shares) | 502,000 |  |
Exercised (in shares) | 0 |  |
Released RSUs and RSAs (in shares) | (241,000) |  |
Forfeited (in shares) | (145,000) |  |
Balance at the end of the period (in shares) | 598,000 | 482,000 |
Vested and expected to vest at the end of the period (in shares) | 598,000 |  |
Weighted-Average Fair Value per Share at Grant |  |  |
Balance at the beginning of the period (in dollars per share) | $ 12.62 |  |
Granted (in dollars per share) | 15.77 |  |
Exercised (in dollars per share) | 0 |  |
Released RSUs and RSAs (in dollars per share) | 12.52 |  |
Forfeited (in dollars per share) | 13.86 |  |
Balance at the end of the period (in dollars per share) | 15 | $ 12.62 |
Vested and expected to vest at the end of the period (in dollars per share) | $ 15 |  |
Additional disclosures |  |  |
Total estimated fair value of equity instruments vested | $ 3.2 | $ 3.9 | $ 2.3
RSAs |  |  |
Number of outstanding RSUs and PSUs/RSAs and PSAs |  |  |
Balance at the beginning of the period (in shares) | 16,000 |  |
Granted (in shares) | 0 |  |
Exercised (in shares) | 0 |  |
Released RSUs and RSAs (in shares) | (9,000) |  |
Forfeited (in shares) | 0 |  |
Balance at the end of the period (in shares) | 7,000 | 16,000 |
Vested and expected to vest at the end of the period (in shares) | 0 |  |
Weighted-Average Fair Value per Share at Grant |  |  |
Balance at the beginning of the period (in dollars per share) | $ 14.93 |  |
Granted (in dollars per share) | 0 |  |
Exercised (in dollars per share) | 0 |  |
Released RSUs and RSAs (in dollars per share) | 14.46 |  |
Forfeited (in dollars per share) | 0 |  |
Balance at the end of the period (in dollars per share) | 15.5 | $ 14.93 |
Vested and expected to vest at the end of the period (in dollars per share) | $ 0 |  |

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- Definition Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(03) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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