Investment in the Funds (Tables)

12 Months Ended

Dec. 31, 2018

Schedule of Investments [Abstract]

Assets, Liabilities and Partners'/Members' Capital of Funds

Summarized information reflecting the total assets, liabilities and partners’/members’ capital of the Funds is shown in the following tables.

	December 31, 2018
	Total Assets		Total Liabilities		Total Capital
Cambridge Master	$	21,433,817	$	4,151,814	$	17,282,003
SECOR Master		37,347,676		2,170,539		35,177,137
FORT Contrarian Master		180,042,210		1,648,773		178,393,437
AE Capital Master		19,758,302		99,954		19,658,348
	December 31, 2017
	Total Assets		Total Liabilities		Total Capital
Willowbridge Master	$	336,101,673	$	39,096,772	$	297,004,901
Aspect Master		31,265,102		16,568,191		14,696,911
Graham Master		17,461,265		11,507,153		5,954,112
Boronia I, LLC		20,339,272		20,339,272		—
Cambridge Master		31,063,463		4,384,639		26,678,824

Net Investment Income (Loss), Trading Results and Net Income (Loss) of Funds

Summarized information reflecting the net investment income (loss), total trading results and net income (loss) of the Funds is shown in the following tables.

	For the year ended December 31, 2018
	Net Investment Income (Loss)			Total Trading Results			Net Income (Loss)
Cambridge Master	$	371,194		$	(3,386,331	)	$	(3,015,137	)
SECOR Master		(184,045	)		8,191,065			8,007,020
FORT Contrarian Master		2,172,289			(12,008,806	)		(9,836,517	)
AE Capital Master (a)		180,229			(1,180,663	)		(1,000,434	)
	For the year ended December 31, 2017
	Net Investment Income (Loss)			Total Trading Results			Net Income (Loss)
Willowbridge Master	$	1,244,821		$	(27,512,190	)	$	(26,267,369	)
Aspect Master		86,824			237,022			323,846
Graham Master		17,954			1,841,308			1,859,262
Boronia I, LLC		(1,350,616	)		(7,153,817	)		(8,504,433	)
Cambridge Master		141,596			1,967,437			2,109,033

(a) From February 1, 2018, commencement of operations for AE Capital Master, through December 31, 2018.

Partnership's Investments in, and Partnership's Pro Rata Share of Results of Operations of Funds

Summarized information reflecting the Partnership’s investment in and the Partnership’s pro-rata share of the results of operations of the Funds is shown in the following tables.

	December 31, 2018					For the year ended December 31, 2018
									Expenses
Funds	% of Partners’ Capital			Fair Value		Income (Loss)			Clearing Fees		Professional Fees		Management Fee		Incentive Fee		Net Income (Loss)			Investment Objective		Redemptions Permitted
Cambridge Master		12.90	%	$	17,284,725	$	(2,882,082	)	$	81,191	$	61,444	$	—	$	—	$	(3,024,717	)		Commodity Portfolio		Monthly
SECOR Master		22.27	%		29,850,097		7,163,555			516,774		55,367		—		—		6,591,414			Commodity Portfolio		Monthly
FORT Contrarian Master		15.30	%		20,501,423		(1,174,034	)		72,292		14,941		—		—		(1,261,267	)		Commodity Portfolio		Monthly
AE Capital Master (a)		11.64	%		15,603,718		(548,257	)		102,075		46,782		—		—		(697,114	)		Commodity Portfolio		Monthly
Total				$	83,239,963	$	2,559,182		$	772,332	$	178,534	$	—	$	—	$	1,608,316
	December 31, 2017					For the year ended December 31, 2017
									Expenses
Funds	% of Partners’ Capital			Fair Value		Income (Loss)			Clearing Fees		Professional Fees		Management Fee		Incentive Fee		Net Income (Loss)			Investment Objective		Redemptions Permitted
Willowbridge Master		0.00	%	$	—	$	(2,262,268	)	$	129,443	$	6,247	$	—	$	—	$	(2,397,958	)		Commodity Portfolio		Monthly
Aspect Master		0.00	%		—		217,908			48,096		27,426		—		—		142,386			Commodity Portfolio		Monthly
Graham Master		0.00	%		—		1,326,851			40,258		43,405		—		—		1,243,188			Commodity Portfolio		Monthly
Boronia I, LLC		0.00	%		—		(2,296,906	)		336,343		36,937		157,165		—		(2,827,351	)		Commodity Portfolio		Monthly
Cambridge Master		21.66	%		19,891,353		668,519			63,273		31,548		—		—		573,698			Commodity Portfolio		Monthly
Total				$	19,891,353	$	(2,345,896	)	$	617,413	$	145,563	$	157,165	$	—	$	(3,266,037	)

(a) From February 1, 2018, the date the Partnership invested into AE Capital Master, through December 31, 2018.