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Subsequent Event - Additional Information (Detail) - Subsequent Event [Member] - USD ($)
Jul. 29, 2016
Jul. 27, 2016
Term Loan Facility [Member]    
Subsequent Event [Line Items]    
Term loan facility, aggregate principal amount   $ 150,000,000
Innospec International Ltd [Member] | Put Option [Member]    
Subsequent Event [Line Items]    
Purchase price to acquire European Personal Care and Home Care business $ 200,000,000