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Property, Plant and Equipment, Net - Balances (Details) - USD ($)
$ in Millions
Sep. 30, 2022
Dec. 31, 2021
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 176.0 $ 150.4
Less accumulated depreciation (108.5) (106.9)
Property, plant and equipment, net 67.5 43.5
Leasehold improvements    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 55.5 38.0
Equipment    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 120.5 $ 112.4