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Stock-Based Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Stock-Based Compensation |  |  |  |
Stock-based compensation expense | $ 4,700 | $ 3,300 | $ 9,500 | $ 9,800
Vesting period | 60 days |  | 4 years |
Unrecognized compensation costs related to unvested share-based compensation arrangements | $ 27,600 |  | $ 27,600 |
Weighted-average period for recognition of unrecognized stock-based compensation expense |  |  | 2 years 4 months 24 days |
Compensation expense |  |  | $ 655 |
Restricted Stock Units |  |  |  |
Stock-Based Compensation |  |  |  |
Awarded (in shares) |  |  | 112,963 |
Weighted average granted date fair value (in dollars per share) |  |  | $ 119.60 |
Vesting period |  |  | 3 years |
Phantom Share Units (PSUs) |  |  |  |
Stock-Based Compensation |  |  |  |
Vesting period |  |  | 3 years |
Employees | Restricted Stock Units |  |  |  |
Stock-Based Compensation |  |  |  |
Vesting period |  |  | 4 years |

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