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Stock-Based Compensation Expense - Narrative (Details) - USD ($) $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |
Restricted stock units granted (in shares) |  | 20,358 |
Employee Stock Option |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |
Options granted in period (in shares) | 0 | 401,535 |
Compensation cost not yet recognized | $ 13.2 |  |
Compensation cost not yet recognized, period of recognition | 1 year 10 months 24 days |  |
Stock-Settled Performance-Based Restricted Stock Units |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |
Stock units granted in period (in shares) |  | 286,863 |
Compensation cost not yet recognized | $ 17.5 |  |
Compensation cost not yet recognized, period of recognition | 1 year 10 months 24 days |  |
Award vesting period | 1 year |  |
Stock-Settled Performance-Based Restricted Stock Units | Maximum |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |
Stock units granted in period (in shares) | 364,810 |  |
Cash-Settled Performance-Based Share-Based Awards (Liability Awards) |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |
Target cash incentive | $ 1.6 | $ 1.3 |
Compensation cost not yet recognized | $ 3.8 |  |
Compensation cost not yet recognized, period of recognition | 1 year 9 months 18 days |  |
Fair value of awards | $ 4.1 |  | $ 3.4
Cash-Settled Performance-Based Share-Based Awards (Liability Awards) | Maximum |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |
Target cash incentive | $ 4.4 | $ 4.6 |
Multiplying factor | 250.00% | 250.00% |
Restricted Stock Units |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |
Restricted stock units granted (in shares) | 158,719 |  |
Compensation cost not yet recognized | $ 9.1 |  |
Compensation cost not yet recognized, period of recognition | 3 years 1 month 6 days |  |
Restricted Stock Units | Employee |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |
Award vesting period | 4 years |  |
Restricted Stock Units | Non-employee members |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |
Award vesting period | 1 year |  |

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