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Fees and Related Party Transactions (Tables)
6 Months Ended
Jun. 30, 2013
Fees and Related Party Transactions [Abstract]  
Sponsor Fees
For the three and six months ended June 30, 2013 the Sponsor Fee listed below for Class 2 included a selling agent fee (the “Selling Agent Fee”) of 2%. The Selling Agent Fee compensates selling agents for initial and on-going services to the Fund.
 
Class
 
2013 Annual Rate
  
2012 Annual Rate
 
        
Class 0
  0.75%   1.00% 
Class 2
  2.75%   1.00%
Brokerage fees
This Brokerage Fee was payable monthly in arrears calculated as of the last business day of each month in the same manner as the Advisory Fee.
 
Class
 
Annual Rate
 
     
Class 0
  2% 
Class 2
  4%