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Administration Fees	12 Months Ended
Administration Fees	Dec. 31, 2013
Administration Fees [Abstract]
Administration Fees	N. Administration Fees We have entered into administration agreements with other companies (the "Administrators"), whereby the Administrators provide certain services on behalf of several of the Funds and Investment Partnerships. Such services do not include the investment advisory and portfolio management services provided by GBL. The fees are negotiated based on predetermined percentages of the net assets of each of the Funds.