Financial Highlights (Tables)

12 Months Ended

Dec. 31, 2018

Investment Company [Abstract]

Financial Highlights for Limited Partner Class

Financial highlights for the limited partner class as a whole for the years ended December 31, 2018, 2017 and 2016 were as follows:

	2018			2017			2016
	Class A			Class A			Class A
Per Unit Performance (for a unit outstanding throughout the year):*
Net realized and unrealized gains (losses)	$	(3.72)		$	2.17		$	(3.05)
Net investment loss		(0.96)			(1.09)			(1.39)
Increase (decrease) for the year		(4.68)			1.08			(4.44)
Net asset value per Unit, beginning of year		23.14			22.06			26.50
Net asset value per Unit, end of year	$	18.46		$	23.14		$	22.06
	2018			2017			2016
	Class A			Class A			Class A
Ratios to Average Limited Partners’ Capital:
Net investment loss **		(4.6)	%		(5.1)	%		(5.6)	%
Operating expenses		5.9	%		5.8	%		5.9	%
Incentive fees		-			-			-
Total expenses		5.9	%		5.8	%		5.9	%
Total return:
Total return before incentive fees		(20.2)	%		4.9	%		(16.8)	%
Incentive fees		-			-			-
Total return after incentive fees		(20.2)	%		4.9	%		(16.8)	%

* Net investment loss per Unit is calculated by dividing the interest income less total expenses by the average number of Units outstanding during the year. The net realized and unrealized gains (losses) per Unit is a balancing amount necessary to reconcile the change in net asset value per Unit with the other per unit information.

** Interest income less total expenses.