Operations (Tables)

12 Months Ended

Dec. 31, 2014

Brokers and Dealers [Abstract]

Schedule of Due to (from) Broker-Dealers and Clearing Organizations [Table Text Block]

Until October 22, 2013, the Trust’s brokerage fee constitutes a “wrap fee” of 4.67% of the Trust’s month-end assets on an annual basis (0.38916% monthly) with respect to Class A units and 2.67% of the Trust’s month-end assets on an annual basis (0.225% monthly) with respect to Class B units, which covers the fees described below. “Brokerage fee” includes the following across each class of units:

Recipient	Nature of Payment	Class A Units			Class B Units			Class C Units			Class D Units
Managing Owner	Managing Owner Fee		0.50	%		0.50	%		0.50	%		0.50	%
Selling Agents	Selling Commission (monthly)		2.00	%		0.00	%		0.00	%		2.00	%
Selling Agents	Selling Commission (initial sales charge)		0.00	%		0.00	%		0.00	%		2.00	%
Managing Owner	Wholesale Fee		0.00	%		0.00	%		0.35	%		0.35	%
Clearing Broker	Clearing, NFA and exchange fees (approximately)		2.60	%		2.60	%		2.60	%		2.60	%
			5.10	%		3.10	%		3.45	%		7.45	%