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Discontinued Operations - Narratives (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended 12 Months Ended
Feb. 26, 2020
Feb. 28, 2019
Jun. 30, 2020
Mar. 31, 2020
Sep. 30, 2020
Dec. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations            
Payment for amendment agreement $ 15.8          
Escrow deposit released     $ 6.6 $ 3.3    
Consumer and Industrial Chemistry Technologies | Discontinued operations, disposed of by sale            
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations            
Cash consideration   $ 175.0        
Working Adjustment Period 1 | Consumer and Industrial Chemistry Technologies | Discontinued operations, disposed of by sale            
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations            
Contingent liabilities remaining   $ 4.4        
Contingent liabilities remaining period   90 days        
Loss on contract settlement           $ 19.0
Working Adjustment Period 2-4 | Consumer and Industrial Chemistry Technologies | Discontinued operations, disposed of by sale            
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations            
Contingent liabilities remaining   $ 13.1        
Working Adjustment Period 2 | Consumer and Industrial Chemistry Technologies | Discontinued operations, disposed of by sale            
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations            
Contingent liabilities remaining period   6 months        
Working Adjustment Period 3 | Consumer and Industrial Chemistry Technologies | Discontinued operations, disposed of by sale            
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations            
Contingent liabilities remaining period   12 months        
Working Adjustment Period 4 | Consumer and Industrial Chemistry Technologies | Discontinued operations, disposed of by sale            
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations            
Contingent liabilities remaining period   15 months        
Amended terpene supply agreement            
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations            
Additional loss         $ 0.8