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Discontinued Operations - Additional Disclosures (Details) - USD ($)
$ in Millions
9 Months Ended
Feb. 28, 2019
Sep. 30, 2019
Consumer and Industrial Chemistry Technologies | Discontinued operations, disposed of by sale    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Cash consideration $ 175.0  
Inventory retained   $ 11.1
Remaining minimum amount committed   72.0
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 [Line Items]    
Contingent liabilities remaining period 90 days  
Contingent liabilities remaining $ 4.4  
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 [Line Items]    
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 [Line Items]    
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 [Line Items]    
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 [Line Items]    
Contingent liabilities remaining period 15 months  
Other current assets    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Escrow   $ 12.5