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Segmental Reporting (Details 1) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Summary of segment depreciation and amortization    
Depreciation $ 2.3 $ 1.6
Amortization 2.1 1.0
Fuel Specialties [Member]
   
Summary of segment depreciation and amortization    
Depreciation 0.6 0.5
Amortization 1.6 0.5
Performance Chemicals [Member]
   
Summary of segment depreciation and amortization    
Depreciation 0.9 0.6
Amortization 0.4 0.3
Octane Additives [Member]
   
Summary of segment depreciation and amortization    
Depreciation 0.2 0.1
Amortization 0.1 0.2
Corporate [Member]
   
Summary of segment depreciation and amortization    
Depreciation $ 0.6 $ 0.4