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Other Charges, Net - Components of other charges (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Restructuring and Related Activities [Abstract]      
Acquisition-related expenses, net $ 6.1 $ 2.4 $ 4.6
Professional fees incurred in connection with investigation matters and other legal matters 1.1 5.9 2.1
Information technology transformation costs 2.8 2.5 3.7
Restructuring charges 4.8 12.0 (3.9)
Long-lived asset impairments (0.5) 2.1  
Other charges, net $ 14.3 $ 24.9 $ 6.5