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Acquisitions (Tables)
3 Months Ended
Mar. 31, 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 March 31,
 20222021
Opening balance$24.4 $39.8 
Acquisitions— 2.0 
Payments and issuances(2.0)(10.6)
Fair value losses (gains) included in net loss0.4 (3.2)
Closing balance$22.8 $28.0