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Acquisitions (Tables) | 6 Months Ended
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Jun. 30, 2022
Business Combination and Asset Acquisition [Abstract] |
Summary of Changes in Contingent Consideration Measured at Fair Value on a Recurring Basis | Changes in contingent consideration measured at fair value on a recurring basis were as follows (in millions):
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2022 |  | 2021 |  | 2022 |  | 2021
Opening balance | $ | 22.8 |  |  | $ | 28.0 |  |  | $ | 24.4 |  |  | $ | 39.8 |
Acquisitions | 3.6 |  |  | 2.7 |  |  | 3.6 |  |  | 4.7 |
Payments and issuances | (4.0) |  |  | (0.4) |  |  | (6.0) |  |  | (11.0) |
Fair value (gains) losses included in net loss | (0.7) |  |  | 2.7 |  |  | (0.3) |  |  | (0.5) |
Closing balance | $ | 21.7 |  |  | $ | 33.0 |  |  | $ | 21.7 |  |  | $ | 33.0 |

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- Definition Tabular disclosure of contingent payment arrangements including the terms that will result in payment and the accounting treatment that will be followed if such contingencies occur, including the potential impact on earnings per share if contingencies are to be settled in common stock of the entity. The description also may include the period over which amounts are expected to be paid, and changes in the amount since the previous reporting period. This also includes contingent options and commitments. + References No definition available. + Details
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