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Fair Value Measurements (Details 2) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Business Acquisition, Contingent Consideration [Line Items]    
Contingent consideration impairment $ 33.8 $ 4.6
Fair Value, Measurements, Recurring    
Business Acquisition, Contingent Consideration [Line Items]    
Fair value, beginning of period 259.8 346.1
Fair value, end of period $ 226.0 $ 341.5