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Incentive Plans - Schedule of Compensation Expense (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Long-term incentive units |  |  |
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items] |  |  |
Deferred compensation, expensed | $ 3.7 | $ 2.8 |
Unearned Compensation | $ 31.8 |  | $ 16.6
Expected period to recognize unearned compensation (in years) | 2 years 9 months 18 days |  |
Market-based performance awards |  |  |
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items] |  |  |
Deferred compensation, expensed | $ 2.2 | 4.1 |
Deferred compensation, capitalized |  | 0.1 |
Unearned Compensation | $ 34.6 |  | 19.9
Expected period to recognize unearned compensation (in years) | 2 years 10 months 24 days |  |
Service Based Restricted Stock Units |  |  |
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items] |  |  |
Deferred compensation, expensed | $ 7.6 | 7.7 |
Deferred compensation, capitalized | 1.5 | 1.1 |
Unearned Compensation | $ 100.6 |  | $ 66.4
Expected period to recognize unearned compensation (in years) | 3 years |  |
Interxion awards |  |  |
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items] |  |  |
Deferred compensation, expensed |  | $ 0.7 |
Expected period to recognize unearned compensation (in years) | 0 years |  |

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