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Restructuring and Acquisition Charges (Tables) | 12 Months Ended
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Dec. 31, 2022
Restructuring and Related Activities [Abstract] |
Restructuring, Impairment, and Other Activities Disclosure | Restructuring and acquisition charges are presented in the table below.
| Year Ended December 31,
(in millions) | 2022 | 2021 | 2020
Severance and other employment-related charges | $ | 44.5 |  | 14.3 |  | 69.0 |
Restructuring, pre-acquisition and post-acquisition charges | 57.5 |  | 50.0 |  | 51.5 |
Stock-based compensation expense for HFF retention awards | 6.1 |  | 17.8 |  | 36.7 |
Fair value adjustments to earn-out liabilities | (3.3) |  | 2.6 |  | (14.8) |
Restructuring and acquisition charges | $ | 104.8 |  | 84.7 |  | 142.4 |

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- Definition The entire disclosure of costs incurred for restructuring including, but not limited to, exit and disposal activities, remediation, implementation, integration, asset impairment, and charges against earnings from the write-down of assets. + References No definition available. + Details
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