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Property, Plant and Equipment - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Property Plant And Equipment [Line Items]      
Depreciation expense $ 42.4 $ 40.1 $ 38.5
Furniture, Fixtures and Equipment      
Property Plant And Equipment [Line Items]      
Carrying value at the time of disposition   $ 0.9 $ 0.5
Furniture, Fixtures and Equipment | Maximum      
Property Plant And Equipment [Line Items]      
Carrying value at the time of disposition 0.1    
Certain Building and Equipment Service Upon Approval From LYBALVI      
Property Plant And Equipment [Line Items]      
Construction in progress to start on approval $ 24.2