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Consolidated Statements of Financial Condition (Parentheticals) - Trading [Member] - shares
Jun. 30, 2017
Dec. 31, 2016
Limited Partner [Member] | Beneficial Owner [Member] | Capital Unit, Class A [Member]    
Units outstanding 69,233 82,359
Limited Partner [Member] | Beneficial Owner [Member] | Capital Unit, Class B [Member]    
Units outstanding 2,926 839
Limited Partner [Member] | Beneficial Owner [Member] | Capital Unit, Class C [Member]    
Units outstanding 0 0
Limited Partner [Member] | Beneficial Owner [Member] | Capital Unit, Class D [Member]    
Units outstanding 0 0
General Partner [Member] | Managing Owner [Member] | Capital Unit, Class A [Member]    
Units outstanding 535 535