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Property, Plant and Equipment (Details)
$ in Millions
3 Months Ended
Mar. 31, 2021
USD ($)
ft²
Mar. 31, 2020
USD ($)
Dec. 31, 2020
USD ($)
Property, Plant and Equipment [Line Items]      
Accumulated depreciation | $ $ 1,827.6   $ 1,782.3
Depreciation | $ $ 48.8 $ 48.4  
Biologics Manufacturing      
Property, Plant and Equipment [Line Items]      
Number of square feet | ft² 393,000    
Warehouse, Utilities and Support Space      
Property, Plant and Equipment [Line Items]      
Number of square feet | ft² 290,000    
Administrative Space      
Property, Plant and Equipment [Line Items]      
Number of square feet | ft² 51,000    
Solothurn, Switzerland      
Property, Plant and Equipment [Line Items]      
Construction in progress | $ $ 1,900.0   $ 1,800.0