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Segment Reporting (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | $ 5,479.7 | $ 5,745.5 | $ 10,829.7 | $ 11,267.4 |
Depreciation, Depletion and Amortization | 46.1 | 46.9 | 91.6 | 91.3 |
Other Nonoperating Income (Expense) | 95.9 | (0.8) | 74.3 | (10.9) |
Assets | 15,108.5 |  | 15,108.5 |  | $ 15,060.9
EES |  |  |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | 2,172.9 | 2,200.3 | 4,271.9 | 4,335.4 |
Adjusted EBITDA | $ 194.9 | $ 189.0 | $ 360.7 | $ 372.0 |
Adjusted EBITDA Margin % | 9.00% | 8.60% | 8.40% | 8.60% |
Depreciation, Depletion and Amortization | $ 11.4 | $ 11.5 | $ 22.7 | $ 21.4 |
Other Nonoperating Income (Expense) | 3.0 | 9.8 | 8.7 | 10.3 |
Assets | 4,629.2 |  | 4,629.2 |  | 4,553.6
CSS |  |  |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | 1,865.9 | 1,850.9 | 3,536.0 | 3,582.9 |
Adjusted EBITDA | $ 150.8 | $ 179.5 | $ 278.0 | $ 335.0 |
Adjusted EBITDA Margin % | 8.10% | 9.70% | 7.90% | 9.30% |
Depreciation, Depletion and Amortization | $ 18.2 | $ 17.9 | $ 36.2 | $ 35.9 |
Other Nonoperating Income (Expense) | 16.0 | 27.7 | 34.8 | 28.5 |
Assets | 5,659.8 |  | 5,659.8 |  | 5,626.6
UBS |  |  |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | 1,440.9 | 1,694.3 | 3,021.8 | 3,349.1 |
Adjusted EBITDA | $ 173.5 | $ 188.6 | $ 342.9 | $ 376.3 |
Adjusted EBITDA Margin % | 12.00% | 11.10% | 11.30% | 11.20% |
Depreciation, Depletion and Amortization | $ 7.4 | $ 6.4 | $ 14.4 | $ 12.4 |
Other Nonoperating Income (Expense) | (103.2) | (1.7) | (102.4) | (1.1) |
Assets | 3,684.9 |  | 3,684.9 |  | 3,908.5
Corporate Segment |  |  |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |  |
Depreciation, Depletion and Amortization | 9.1 | 11.1 | 18.3 | 21.6 |
Other Nonoperating Income (Expense) | (11.7) | $ 35.0 | (15.4) | $ (26.8) |
Assets | $ 1,134.6 |  | $ 1,134.6 |  | $ 972.2

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