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Share-based Compensation - Narrative (Details) $ / shares in Units, $ in Thousands |  |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
Aug. 06, 2021 $ / shares shares | Mar. 18, 2021 $ / shares | Oct. 23, 2020 shares | Jun. 30, 2021 shares | Sep. 30, 2022 USD ($) | Jun. 30, 2022 purchase_period | Sep. 30, 2021 USD ($) | Sep. 30, 2022 USD ($) $ / shares shares | Sep. 30, 2021 USD ($) | Dec. 31, 2021 purchase_period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Share-based compensation expense | $ |  |  |  |  | $ 8,320 |  | $ 7,092 | $ 25,398 | $ 22,666 |
Unrecognized share-based compensation expense | $ |  |  |  |  | $ 33,600 |  |  | $ 33,600 |  |
Unrecognized share-based compensation expense weighted average recognition period |  |  |  |  |  |  |  | 1 year 4 months 24 days |  |
Employee Stock |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Number of shares authorized |  |  |  | 2,500,000 |  |  |  |  |  |
Number of purchase periods | purchase_period |  |  |  |  |  | 2 |  |  |  | 4
Purchase period |  |  |  |  |  | 12 months |  |  |  | 24 months
Offering period |  |  |  |  |  | 12 months |  | 12 months |  |
Share-based compensation expense | $ |  |  |  |  |  |  |  | $ 475 |  |
Unamortized expense | $ |  |  |  |  |  |  |  | $ 651 |  |
Unvested performance awards | Officer |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Granted (in shares) |  |  | 439,000 |  |  |  |  |  |  |
Granted, weighted average exercise price (in usd per share) | $ / shares |  | $ 13.56 |  |  |  |  |  |  |  |
Performance Share sand Restricted Stock Units (RSUs) | Officer |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Granted (in shares) | 619,000 |  |  |  |  |  |  | 2,311,000 |  |
Granted, weighted average exercise price (in usd per share) | $ / shares | $ 14.42 |  |  |  |  |  |  | $ 11.26 |  |
Performance shares vested (in shares) |  |  |  |  |  |  |  | 305,000 |  |
Shares forfeited/canceled (in shares) |  |  |  |  |  |  |  | 255,000 |  |
Unvested restricted units |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Award vesting period |  |  |  |  |  |  |  | 1 year |  |
Amended and Restated Equity Incentive Plan |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Number of additional shares authorized |  |  |  | 23,800,000 |  |  |  |  |  |

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