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Incentive Plans - Schedule of Compensation Expense (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Long-term incentive units |  |  |  |  |
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items] |  |  |  |  |
Deferred compensation, expensed | $ 5.0 | $ 4.0 | $ 15.0 | $ 11.5 |
Deferred compensation, capitalized | 0.1 |  | 0.1 | 0.1 |
Unearned Compensation | 33.9 |  | $ 33.9 |  | $ 22.1
Expected period to recognize unearned compensation (in years) |  |  | 2 years 4 months 24 days |  |
Performance-based awards |  |  |  |  |
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items] |  |  |  |  |
Deferred compensation, expensed | 3.8 | 3.5 | $ 11.2 | 9.2 |
Deferred compensation, capitalized | 0.1 |  | 0.3 | 0.1 |
Unearned Compensation | 34.9 |  | $ 34.9 |  | 24.1
Expected period to recognize unearned compensation (in years) |  |  | 2 years 6 months |  |
Service Based Restricted Stock Units |  |  |  |  |
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items] |  |  |  |  |
Deferred compensation, expensed | 10.0 | 9.2 | $ 29.8 | 25.6 |
Deferred compensation, capitalized | 2.2 | $ 0.8 | 5.7 | $ 3.7 |
Unearned Compensation | $ 95.9 |  | $ 95.9 |  | $ 70.3
Expected period to recognize unearned compensation (in years) |  |  | 2 years 7 months 6 days |  |

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