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Acquisitions - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended 12 Months Ended
Nov. 01, 2017
Jun. 30, 2021
Mar. 31, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Business Acquisition [Line Items]              
Severance costs   $ 6.1   $ 3.2 $ 9.6 $ 8.8  
DuPont              
Business Acquisition [Line Items]              
Supply agreement term 5 years            
Revenues   $ 26.0   $ 32.0 $ 51.0 $ 63.0  
DuPont | Minimum              
Business Acquisition [Line Items]              
Severance costs             $ 3.0
DuPont | Maximum              
Business Acquisition [Line Items]              
Severance costs     $ 2.0