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Acquisitions - Resiquimica Purchase Price Allocation (Details)
€ in Millions, $ in Millions
Nov. 30, 2019
USD ($)
Nov. 30, 2018
USD ($)
Sep. 25, 2018
USD ($)
Sep. 25, 2018
EUR (€)
Nov. 30, 2017
USD ($)
Business Acquisition [Line Items]          
Goodwill $ 69.4 $ 70.9     $ 66.3
Resiquimica S.A. Acquisition [Member]          
Business Acquisition [Line Items]          
Accounts receivable     $ 20.0    
Inventories     8.8    
Prepaid expenses and other     0.5    
Property, plant, and equipment     13.7    
Intangible assets     3.5    
Goodwill     6.4    
Total assets acquired     52.9    
Accounts payable     11.5    
Accrued payroll and personal property taxes     1.7    
Other current liabilities     1.2    
Deferred income taxes     3.1    
Total liabilities assumed     17.5    
Net assets acquired     $ 35.4 € 21.8