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Goodwill - Additional Information (Detail) - USD ($)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Huntsman [Member]      
Goodwill [Line Items]      
Decrease in goodwill $ 23,100,000    
Fuel Specialties [Member]      
Goodwill [Line Items]      
Impairment of goodwill 0 $ 0 $ 0
Performance Chemicals [Member]      
Goodwill [Line Items]      
Impairment of goodwill 0 0 0
Oilfield Services [Member]      
Goodwill [Line Items]      
Impairment of goodwill 0 0 0
Octane Additives [Member]      
Goodwill [Line Items]      
Impairment of goodwill $ 0 $ 0 $ 0