Ceres Tactical Systematic (TDFF) 10-Q9 May 192019 Q1 Quarterly reportFinancial data

Company Profile

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
Document and Entity Information - shares	Mar. 31, 2019	Apr. 30, 2019
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
Entity Registrant Name	CERES TACTICAL SYSTEMATIC L.P.
Entity Central Index Key	0001209709
Trading Symbol	TDFF
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Class A Redeemable Units [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		150,911.7278
Class D Redeemable Units [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		7,789.3400
Class Z Redeemable Units [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		261.1000

Statements of Financial Conditi

Statements of Financial Condition - USD ($)		Mar. 31, 2019	Dec. 31, 2018
Assets:
Investment in the Funds(1), at fair value	[1]	$ 79,098,097	$ 83,239,963
Redemptions receivable from the Funds		12,404,832	5,040,947
Equity in trading account:
Unrestricted cash		27,922,357	38,672,319
Restricted cash		10,027,922	10,116,332
Net unrealized appreciation on open contracts		2,812,002	2,189,009
Total equity in trading account		40,762,281	50,977,660
Interest receivable		72,640	87,133
Total assets		132,337,850	139,345,703
Liabilities:
Net unrealized depreciation on open forward contracts		228,403	0
Accrued expenses:
Ongoing selling agent fees		208,950	219,228
Management fees		118,040	124,614
Incentive fees		437,931	1,209,783
General Partner fees		109,770	115,789
Professional fees		176,519	180,094
Redemptions payable to Limited Partners		2,329,127	3,477,975
Total liabilities		3,608,740	5,327,483
Partners' Capital:
Total partners' capital (net asset value)		128,729,110	134,018,220
Total liabilities and partners' capital		132,337,850	139,345,703
Class Z Redeemable Units [Member]
Partners' Capital:
General Partner		1,781,974	1,746,751
Limited Partners		252,255	219,365
Total partners' capital (net asset value)		$ 2,034,229	$ 1,966,116
Net asset value per Redeemable Unit:
Net asset value per Redeemable Unit		$ 966.12	$ 947.03
Class A Redeemable Units [Member]
Partners' Capital:
Limited Partners		$ 119,240,158	$ 124,683,920
Total partners' capital (net asset value)		$ 119,240,158	$ 124,683,920
Net asset value per Redeemable Unit:
Net asset value per Redeemable Unit		$ 777.81	$ 766.28
Class D Redeemable Units [Member]
Partners' Capital:
Limited Partners		$ 7,454,723	$ 7,368,184
Total partners' capital (net asset value)		$ 7,454,723	$ 7,368,184
Net asset value per Redeemable Unit:
Net asset value per Redeemable Unit		$ 957.04	$ 939.90
Futures Contracts [Member]
Equity in trading account:
Net unrealized appreciation on open contracts		$ 2,812,002	$ 1,971,870
Liabilities:
Net unrealized depreciation on open forward contracts		0	0
Forward Contracts [Member]
Equity in trading account:
Net unrealized appreciation on open contracts		0	217,139
Liabilities:
Net unrealized depreciation on open forward contracts		$ 228,403	$ 0

[1]	Defined in Note 1.

Statements of Financial Condi_2

Statements of Financial Condition (Parenthetical) - shares	Mar. 31, 2019	Dec. 31, 2018
Class A Redeemable Units [Member]
Limited Partners Capital, Redeemable units outstanding	153,303.1398	162,712.3818
Class D Redeemable Units [Member]
Limited Partners Capital, Redeemable units outstanding	7,789.3400	7,839.3400
Class Z Redeemable Units [Member]
General Partner Capital, Redeemable units outstanding	1,844.4570	1,844.4570
Limited Partners Capital, Redeemable units outstanding	261.1000	231.6350

Condensed Schedule of Investmen

Condensed Schedule of Investments		Mar. 31, 2019USD ($)Contract		Dec. 31, 2018USD ($)Contract
Schedule of Investments [Line Items]
Total investment in the Funds	[1]	$ 79,098,097		$ 83,239,963
% of Partners' Capital		61.45%		62.11%
Cambridge Master Fund L.P. [Member]
Schedule of Investments [Line Items]
Total investment in the Funds		$ 0		$ 17,284,725
% of Partners' Capital		0.00%		12.90%
SECOR Alpha Master Fund L.P. [Member]
Schedule of Investments [Line Items]
Total investment in the Funds		$ 27,224,703		$ 29,850,097
% of Partners' Capital		21.15%		22.27%
CMF FORT Contrarian Master Fund LLC [Member]
Schedule of Investments [Line Items]
Total investment in the Funds		$ 20,697,208		$ 20,501,423
% of Partners' Capital		16.08%		15.30%
CMF AE Capital Master Fund LLC [Member]
Schedule of Investments [Line Items]
Total investment in the Funds		$ 12,416,566		$ 15,603,718
% of Partners' Capital		9.65%		11.64%
CMF ADG Master Fund LLC [Member]
Schedule of Investments [Line Items]
Total investment in the Funds		$ 18,759,620
% of Partners' Capital		14.57%
Futures Contracts [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 3,337,971		$ 2,636,639
Total unrealized depreciation on open contracts		(525,969)		(664,769)
Net unrealized appreciation (depreciation) on open contracts		$ 2,812,002		$ 1,971,870
% of Partners' Capital		2.18%		1.47%
Futures Contracts [Member] \| Currencies [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 29,434		$ 41,947
Total unrealized depreciation on open contracts		(24,474)		(70,231)
Futures Contracts [Member] \| Energy [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		84,861		647,829
Total unrealized depreciation on open contracts		(131,850)		(189,364)
Futures Contracts [Member] \| Grains [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		445,466		160,024
Total unrealized depreciation on open contracts		(2,757)		(29,138)
Futures Contracts [Member] \| Indices [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		209,052		196,704
Total unrealized depreciation on open contracts		(35,216)		(160,316)
Futures Contracts [Member] \| Interest Rates U.S. [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		236,258		202,570
Total unrealized depreciation on open contracts		(3,508)		(1,281)
Futures Contracts [Member] \| Interest Rates Non-U.S. [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		1,998,711		949,077
Total unrealized depreciation on open contracts		(9,174)		(28,242)
Futures Contracts [Member] \| Livestock [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		25,870		26,050
Total unrealized depreciation on open contracts		(44,678)		(1,765)
Futures Contracts [Member] \| Metals [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		45,368		140,316
Total unrealized depreciation on open contracts		(182,162)		(36,545)
Futures Contracts [Member] \| Softs [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		262,951		272,122
Total unrealized depreciation on open contracts		(92,150)		(147,887)
Futures Contracts [Member] \| Long [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts		$ 2,162,478		$ 1,292,027
% of Partners' Capital		1.68%		0.96%
Futures Contracts [Member] \| Long [Member] \| Currencies [Member]
Schedule of Investments [Line Items]
Number of Contracts \| Contract		43		24
Net unrealized appreciation (depreciation) on open contracts		$ (2,731)		$ 8,090
% of Partners' Capital		(0.00%)	[2]	0.01%
Futures Contracts [Member] \| Long [Member] \| Energy [Member]
Schedule of Investments [Line Items]
Number of Contracts \| Contract		116		121
Net unrealized appreciation (depreciation) on open contracts		$ (83,919)		$ 113,418
% of Partners' Capital		(0.07%)		0.08%
Futures Contracts [Member] \| Long [Member] \| Grains [Member]
Schedule of Investments [Line Items]
Number of Contracts \| Contract		9		64
Net unrealized appreciation (depreciation) on open contracts		$ 3,402		$ (9,337)
% of Partners' Capital		0.00%	[2]	(0.01%)
Futures Contracts [Member] \| Long [Member] \| Indices [Member]
Schedule of Investments [Line Items]
Number of Contracts \| Contract		339		89
Net unrealized appreciation (depreciation) on open contracts		$ 181,839		$ (75,222)
% of Partners' Capital		0.14%		(0.06%)
Futures Contracts [Member] \| Long [Member] \| Interest Rates U.S. [Member]
Schedule of Investments [Line Items]
Number of Contracts \| Contract		161		109
Net unrealized appreciation (depreciation) on open contracts		$ 232,750		$ 201,289
% of Partners' Capital		0.18%		0.15%
Futures Contracts [Member] \| Long [Member] \| Interest Rates Non-U.S. [Member]
Schedule of Investments [Line Items]
Number of Contracts \| Contract		3,046		2,512
Net unrealized appreciation (depreciation) on open contracts		$ 1,989,537		$ 937,423
% of Partners' Capital		1.55%		0.70%
Futures Contracts [Member] \| Long [Member] \| Livestock [Member]
Schedule of Investments [Line Items]
Number of Contracts \| Contract		112		46
Net unrealized appreciation (depreciation) on open contracts		$ (18,808)		$ 25,025
% of Partners' Capital		(0.01%)		0.02%
Futures Contracts [Member] \| Long [Member] \| Metals [Member]
Schedule of Investments [Line Items]
Number of Contracts \| Contract		90		65
Net unrealized appreciation (depreciation) on open contracts		$ (138,672)		$ 91,341
% of Partners' Capital		(0.11%)		0.07%
Futures Contracts [Member] \| Long [Member] \| Softs [Member]
Schedule of Investments [Line Items]
Number of Contracts \| Contract		3
Net unrealized appreciation (depreciation) on open contracts		$ (920)
% of Partners' Capital	[2]	(0.00%)
Futures Contracts [Member] \| Short [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts		$ 649,524		$ 679,843
% of Partners' Capital		0.50%		0.51%
Futures Contracts [Member] \| Short [Member] \| Currencies [Member]
Schedule of Investments [Line Items]
Number of Contracts \| Contract		46		86
Net unrealized appreciation (depreciation) on open contracts		$ 7,691		$ (36,374)
% of Partners' Capital		0.01%		(0.03%)
Futures Contracts [Member] \| Short [Member] \| Energy [Member]
Schedule of Investments [Line Items]
Number of Contracts \| Contract		50		127
Net unrealized appreciation (depreciation) on open contracts		$ 36,930		$ 345,047
% of Partners' Capital		0.03%		0.26%
Futures Contracts [Member] \| Short [Member] \| Grains [Member]
Schedule of Investments [Line Items]
Number of Contracts \| Contract		519		444
Net unrealized appreciation (depreciation) on open contracts		$ 439,307		$ 140,223
% of Partners' Capital		0.34%		0.11%
Futures Contracts [Member] \| Short [Member] \| Indices [Member]
Schedule of Investments [Line Items]
Number of Contracts \| Contract		159		552
Net unrealized appreciation (depreciation) on open contracts		$ (8,003)		$ 111,610
% of Partners' Capital		(0.01%)		0.08%
Futures Contracts [Member] \| Short [Member] \| Interest Rates U.S. [Member]
Schedule of Investments [Line Items]
Number of Contracts \| Contract				12
Net unrealized appreciation (depreciation) on open contracts				$ (16,588)
% of Partners' Capital				(0.01%)
Futures Contracts [Member] \| Short [Member] \| Livestock [Member]
Schedule of Investments [Line Items]
Number of Contracts \| Contract				7
Net unrealized appreciation (depreciation) on open contracts				$ (740)
% of Partners' Capital	[2]			(0.00%)
Futures Contracts [Member] \| Short [Member] \| Metals [Member]
Schedule of Investments [Line Items]
Number of Contracts \| Contract		17		77
Net unrealized appreciation (depreciation) on open contracts		$ 1,878		$ 12,430
% of Partners' Capital		0.00%	[2]	0.01%
Futures Contracts [Member] \| Short [Member] \| Softs [Member]
Schedule of Investments [Line Items]
Number of Contracts \| Contract		317		315
Net unrealized appreciation (depreciation) on open contracts		$ 171,721		$ 124,235
% of Partners' Capital		0.13%		0.09%
Forward Contracts [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 295,089		$ 835,975
Total unrealized depreciation on open contracts		(523,492)		(618,836)
Net unrealized appreciation (depreciation) on open contracts		$ (228,403)		$ 217,139
% of Partners' Capital		(0.18%)		0.16%
Forward Contracts [Member] \| Unrealized Appreciation [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		0.23%		0.62%
Forward Contracts [Member] \| Total Unrealized Depreciation on Open Contracts [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		(0.41%)		(0.46%)
Forward Contracts [Member] \| Currencies [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 217,127		$ 443,534
Unrealized Appreciation on Open Forward Contracts, Notional Amount		32,867,821		42,320,704
Total unrealized depreciation on open contracts		(446,485)		(549,780)
Unrealized Depreciation on Open Forward Contracts, Notional Amount		$ 50,992,054		$ 39,926,876
Forward Contracts [Member] \| Currencies [Member] \| Unrealized Appreciation [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		0.17%		0.33%
Forward Contracts [Member] \| Currencies [Member] \| Total Unrealized Depreciation on Open Contracts [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		(0.35%)		(0.41%)
Forward Contracts [Member] \| Metals [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 77,962		$ 392,441
Total unrealized depreciation on open contracts		$ (77,007)		$ (69,056)
Forward Contracts [Member] \| Metals [Member] \| Unrealized Appreciation [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		0.06%		0.29%
Forward Contracts [Member] \| Metals [Member] \| Total Unrealized Depreciation on Open Contracts [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		(0.06%)		(0.05%)
Forward Contracts [Member] \| Net Unrealized Appreciation On Open Forward Contracts [Member] \| Currencies [Member]
Schedule of Investments [Line Items]
Number of Contracts \| Contract		32,867,821		42,320,704
Forward Contracts [Member] \| Net Unrealized Appreciation On Open Forward Contracts [Member] \| Metals [Member]
Schedule of Investments [Line Items]
Number of Contracts \| Contract		63		103
Forward Contracts [Member] \| Net Unrealized Depreciation On Open Forward Contracts [Member] \| Currencies [Member]
Schedule of Investments [Line Items]
Number of Contracts \| Contract		50,992,054		39,926,876
Forward Contracts [Member] \| Net Unrealized Depreciation On Open Forward Contracts [Member] \| Metals [Member]
Schedule of Investments [Line Items]
Number of Contracts \| Contract		36		36

[1]	Defined in Note 1.
[2]	Due to rounding.

Statements of Income and Expens

Statements of Income and Expenses - USD ($)		3 Months Ended
Statements of Income and Expenses - USD ($)		Mar. 31, 2019	Mar. 31, 2018
Investment Income:
Interest income		$ 229,034	$ 224,570
Interest income allocated from the Funds		470,953	332,483
Total investment income		699,987	557,053
Expenses:
Expenses allocated from the Funds		235,654	209,943
Clearing fees related to direct investments		28,327	75,070
Ongoing selling agent fees		631,799	829,840
General Partner fees		331,658	437,400
Management fees		357,274	437,524
Incentive fees		437,931	645,886
Professional fees		125,844	135,347
Total expenses		2,148,487	2,771,010
Net investment loss		(1,448,500)	(2,213,957)
Net gains (losses) on trading of commodity interests and investment in the Funds:
Net realized gains (losses) on closed contracts		377,042	(2,388,086)
Net realized gains (losses) on closed contracts allocated from the Funds		1,582,845	1,198,614
Net change in unrealized gains (losses) on open contracts		417,623	353,813
Net change in unrealized gains (losses) on open contracts allocated from the Funds		1,036,542	2,654,047
Total trading results		3,414,052	1,818,388
Net income (loss)		1,965,552	(395,569)
Class A Redeemable Units [Member]
Net gains (losses) on trading of commodity interests and investment in the Funds:
Net income (loss)		$ 1,791,702	$ (382,744)
Net income (loss) per Redeemable Unit	[1]	$ 11.53	$ (2.39)
Weighted average Redeemable Units outstanding		159,243.8698	193,160.1643
Class D Redeemable Units [Member]
Net gains (losses) on trading of commodity interests and investment in the Funds:
Net income (loss)		$ 133,641	$ 8,456
Net income (loss) per Redeemable Unit	[1]	$ 17.14	$ 0.25
Weighted average Redeemable Units outstanding		7,822.6733	11,344.6870
Class Z Redeemable Units [Member]
Net gains (losses) on trading of commodity interests and investment in the Funds:
Net income (loss)		$ 40,209	$ (21,281)
Net income (loss) per Redeemable Unit	[1]	$ 19.09	$ 2.13
Weighted average Redeemable Units outstanding		2,105.5570	2,284.2533

[1]	Represents the change in net asset value per Redeemable Unit during the period.

Statements of Changes in Partne

Statements of Changes in Partners' Capital - USD ($)	Total	General Partner [Member]	Limited Partners [Member]	Class A Redeemable Units [Member]	Class A Redeemable Units [Member]General Partner [Member]	Class A Redeemable Units [Member]Limited Partners [Member]	Class D Redeemable Units [Member]	Class D Redeemable Units [Member]Limited Partners [Member]	Class Z Redeemable Units [Member]	Class Z Redeemable Units [Member]General Partner [Member]	Class Z Redeemable Units [Member]Limited Partners [Member]
Partners' Capital, Balance at Dec. 31, 2017	$ 91,851,689			$ 91,851,689
Subscriptions		$ 2,445,193	$ 82,351,405			$ 70,601,619		$ 11,507,151		$ 2,445,193	$ 242,635
Redemptions		$ (1,732,560)	$ (6,506,194)		$ (1,157,560)	$ (6,256,839)		$ (249,355)		$ (575,000)
Net income (loss)	(395,569)			(382,744)			$ 8,456		$ (21,281)
Partners' Capital, Balance at Mar. 31, 2018	$ 168,013,964			$ 154,656,165			$ 11,266,252		$ 2,091,547
Partners' Capital, Balance - Redeemable Units at Dec. 31, 2017	111,250.8072			111,250.8072
Partners' Capital, Balance - Redeemable Units at Mar. 31, 2018	201,213.5278			187,862.9808			11,263.4550		2,087.0920
Subscriptions - Redeemable Units		2,418.2350	97,262.2050			85,512.4190		11,507.1510		2,418.2350	242.6350
Redemptions - Redeemable Units		(1,945.4324)	(7,772.2870)		(1,371.6544)	(7,528.5910)		(243.6960)		(573.7780)
Partners' Capital, Balance at Dec. 31, 2018	$ 134,018,220			$ 124,683,920			$ 7,368,184		$ 1,966,116
Subscriptions			$ 27,904			$ 0		$ 0			$ 27,904
Redemptions			$ (7,282,566)			$ (7,235,464)		$ (47,102)			$ 0
Net income (loss)	1,965,552			1,791,702			133,641		40,209
Partners' Capital, Balance at Mar. 31, 2019	$ 128,729,110			$ 119,240,158			$ 7,454,723		$ 2,034,229
Partners' Capital, Balance - Redeemable Units at Dec. 31, 2018	172,627.8138			162,712.3818			7,839.3400		2,076.0920
Partners' Capital, Balance - Redeemable Units at Mar. 31, 2019	163,198.0368			153,303.1398			7,789.3400		2,105.5570
Subscriptions - Redeemable Units			29.4650			0		0			29.4650
Redemptions - Redeemable Units			(9,459.2420)			(9,409.2420)		(50)			0

Organization

Organization	3 Months Ended
Organization	Mar. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	1. Organization: Ceres Tactical Systematic L.P. (the “Partnership”) is a limited partnership organized under the partnership laws of the State of New York on December 3, 2002 to engage, directly or indirectly, in the speculative trading of a diversified portfolio of commodity interests including futures, option, swap and forward contracts. The sectors traded include currencies, energy, grains, indices, U.S. and non-U.S. interest rates, livestock, metals and softs. The commodity interests that are traded by the Partnership directly or indirectly through its investment in the Funds (as defined below) are volatile and involve a high degree of market risk. The General Partner (as defined below) may also determine to invest up to all of the Partnership’s assets (directly or indirectly through its investment in the Funds) in United States (“U.S.”) Treasury bills and/or money market mutual funds, including money market mutual funds managed by Morgan Stanley or its affiliates. Between March 27, 2003 (commencement of the public offering period) and April 30, 2003, 36,616 redeemable units of limited partnership interest in the Partnership (“Redeemable Units”) were sold at $1,000 per Redeemable Unit. The proceeds of the initial public offering were held in an escrow account until April 30, 2003, at which time they were turned over to the Partnership for trading. The Partnership was authorized to publicly offer 300,000 Redeemable Units during the initial public offering period. As of December 4, 2003, the Partnership was authorized to publicly offer an additional 700,000 Redeemable Units. As of October 7, 2004, the Partnership was authorized to publicly offer an additional 1,000,000 Redeemable Units. As of June 30, 2005, the Partnership was authorized to publicly offer Redeemable Units previously registered. The public offering of Redeemable Units terminated on November 30, 2008. The Partnership currently privately and continuously offers Redeemable Units to qualified investors. There is no maximum number of Redeemable Units that may be sold by the Partnership. Ceres Managed Futures LLC, a Delaware limited liability company, acts as the general partner (the “General Partner”) and commodity pool operator of the Partnership and is the trading manager (the “Trading Manager”) of FORT Contrarian Master (as defined below), ADG Master (as defined below) and AE Capital Master (as defined below). The General Partner is a wholly-owned subsidiary of Morgan Stanley Domestic Holdings, Inc. (“MSD Holdings”). MSD Holdings is ultimately owned by Morgan Stanley. Morgan Stanley is a publicly held company whose shares are listed on the New York Stock Exchange. Morgan Stanley is engaged in various financial services and other businesses. During the reporting periods ended March 31, 2019 and 2018, the Partnership’s/Funds’ commodity broker was Morgan Stanley & Co. LLC (“MS&Co.”), a registered futures commission merchant. JPMorgan Chase Bank, N.A. (“JPMorgan”) was also a foreign exchange forward contract counterparty for certain Funds. Partnership/Funds deposited a portion of their cash in non-trading bank accounts at JPMorgan. As of January , , the Partnership began offering three classes of limited partnership interests, Class A Redeemable Units, Class D Redeemable Units and Class Z Redeemable Units. All Redeemable Units issued prior to January , were deemed Class A Redeemable Units. The rights, liabilities, risks, and fees associated with investment in Class A Redeemable Units were not changed. Class A Redeemable Units are available to taxable U.S. individuals and institutions, U.S. tax exempt individuals and institutions, and non-U.S. investors. Class D Redeemable Units and Class Z Redeemable Units were first issued on January , . Class A Redeemable Units, Class D Redeemable Units and Class Z Redeemable Units will each be referred to as a “Class” and collectively referred to as the “Classes.” The Class of Redeemable Units that a limited partner receives upon a subscription will generally depend upon the amount invested in the Partnership or the status of the limited partner, although the General Partner may determine to offer any Class of Redeemable Units to investors at its discretion. Class D Redeemable Units are available to taxable U.S. individuals and institutions, U.S. tax exempt individuals and institutions, and non-U.S. investors. Class Z Redeemable Units are offered to certain employees of Morgan Stanley and its subsidiaries (and their family members). In the future, Class Z Redeemable Units may also be offered to certain limited partners who receive advisory services from Morgan Stanley Smith Barney LLC, doing business as Morgan Stanley Wealth Management (“Morgan Stanley Wealth Management”). Class A Redeemable Units, Class D Redeemable Units and Class Z Redeemable Units are identical, except that Class D Redeemable Units are subject to a monthly ongoing selling agent fee equal to of % (a % annual rate) of the net assets of Class D Redeemable Units as of the end of each month, which differs from the Class A Redeemable Units’ monthly ongoing selling agent fee of of % (a % annual rate) of the net assets of Class A Redeemable Units as of the end of each month. Class Z Redeemable Units are not subject to a monthly ongoing selling agent fee. As of March 31, 2019, all trading decisions were made for the Partnership by ADG Capital Management LLP (“ADG”), ISAM Systematic Management (“ISAM SM”), SECOR Capital Advisors, LP (“SECOR”), FORT, L.P. (“FORT”) and AE Capital Pty Limited (“AE Capital”) (each an “Advisor” and, collectively, the “Advisors”), each of which is a registered commodity trading advisor. Effective October 1, 2018, the Partnership, the General Partner, The Cambridge Strategy (Asset Management) Limited (“Cambridge”) and Mesirow Financial International UK Limited (“Mesirow”) entered into a novation, assignment and assumption agreement, dated September 28, 2018, pursuant to which Cambridge transferred all of its future rights, obligations, and liabilities under that certain amended and restated management agreement, by and among the General Partner, the Partnership and Cambridge, dated as of December 1, 2015, as amended January 1, 2018 (collectively, the “Cambridge Initial Advisory Agreement”), to Mesirow. As of October 1, 2018 and until its termination effective March 31, 2019, Mesirow had undertaken to perform the Cambridge Initial Advisory Agreement and be bound by its terms in every way as if it were the original party to it in place of Cambridge. Effective November 1, 2018, the Partnership, the General Partner, ISAM (USA) LLC, ISAM Funds (UK) Limited, International Standard Asset Management (“ISAM”) and ISAM SM entered into a novation agreement, dated October 25, 2018, pursuant to which ISAM transferred all of its future rights, obligations, and liabilities under that certain amended and restated management agreement, by and among the General Partner, the Partnership, ISAM, ISAM (USA) LLC and ISAM Funds (UK) Limited, dated as of November 1, 2017 (the “ISAM Initial Advisory Agreement”), to ISAM SM. As of November 1, 2018, ISAM SM has undertaken to perform the ISAM Initial Advisory Agreement and be bound by its terms in every way as if it were the original party in place of ISAM. Reference herein to “Advisors” may include, as relevant, Cambridge, Mesirow and ISAM. The Advisors are not affiliated with one another, are not affiliated with the General Partner or MS&Co., and are not responsible for the operation of the Partnership. ISAM SM directly trades, and ISAM directly traded, the Partnership’s assets allocated to it through a managed account in the name of the Partnership pursuant to ISAM SM’s/ISAM’s Systematic Trend Programme. Effective January 19, 2018, FORT directly trades a portion of the Partnership’s assets allocated to it through a managed account in the name of the Partnership pursuant to FORT’s Global Trend Trading Program. SECOR Master Fund L.P. (“SECOR Master”), CMF AE Capital Master Fund LLC (“AE Capital Master”), the Partnership, and prior to the Partnership’s full redemption effective March 31, 2019, Cambridge Master Fund L.P. (“Cambridge Master”), have entered into futures brokerage account agreements and foreign exchange prime brokerage account agreements with MS&Co. CMF FORT Contrarian Master Fund LLC (“FORT Contrarian Master”) and CMF ADG Master Fund LLC (“ADG Master”) have entered into futures brokerage account agreements with MS&Co. SECOR Master, AE Capital Master, ADG Master and FORT Contrarian Master are collectively referred to as the “Funds”. Reference herein to the “Funds” may include, as relevant, Cambridge Master. The Partnership, directly and through its investment in the Funds, pays MS&Co. (or will reimburse MS&Co. if previously paid) its allocable share of all trading fees for the clearing and, where applicable, execution of transactions, as well as exchange, clearing, user, give-up, floor brokerage and National Futures Association fees (collectively, the “clearing fees”). Effective July 12, 2017, SECOR Master and, prior to its termination, Cambridge Master, each entered into certain agreements with JPMorgan in connection with trading in forward foreign currency contracts on behalf of the referenced Funds and, indirectly, the Partnership. These agreements included a foreign exchange and bullion authorization agreement (“FX Agreement”), an International Swap Dealers Association, Inc. master agreement (“Master Agreement”), a schedule to the Master Agreement, a 2016 credit support annex for variation margin to the schedule and an institutional account agreement. On October 10, 2018, Cambridge, Mesirow, Cambridge Master and JPMorgan entered into an amendment and assignment agreement (the “Assignment Agreement”), effective as of October 1, 2018, to the FX Agreement, pursuant to which Cambridge assigned to Mesirow all of its rights, liabilities, duties and obligations under and in respect of the FX Agreement, Mesirow accepted such assignment and assumed all rights, liabilities, duties and obligations under and in respect of the FX Agreement, and JPMorgan consented to such assignment and assumption. Pursuant to the Assignment Agreement, all references to Cambridge were replaced by references to Mesirow, and all references to “Investment Manager” are deemed to refer to Mesirow. On October 10, 2018, Cambridge Master and JPMorgan entered into an amendment (the “ISDA Amendment”), effective as of October 1, 2018, to the schedule to the Master Agreement, dated as of July 12, 2017, between Cambridge Master and JPMorgan. Pursuant to the ISDA Amendment, all references to Cambridge were replaced by references to Mesirow. In addition to SECOR Master and Cambridge Master, SECOR and Mesirow are parties to the FX Agreements for the Funds to which each acts as an Advisor. Under each FX Agreement, JPMorgan charges a fee on the aggregate foreign currency transactions entered into on behalf of the respective Fund during a month. The Partnership has entered into a selling agreement (the “Selling Agreement”) with Morgan Stanley Wealth Management. Pursuant to the Selling Agreement, Morgan Stanley Wealth Management receives a monthly ongoing selling agent fee equal to (i) 2.0% per year of adjusted month-end net assets for Class A Redeemable Units and (ii) 0.75% per year of adjusted month-end net assets for Class D Redeemable Units. Morgan Stanley Wealth Management pays a portion of its ongoing selling agent fees to properly registered or exempted financial advisors who have sold Class A and Class D Redeemable Units. Class Z Redeemable Units are not subject to an ongoing selling agent fee. As of November 1, 2018, the Partnership entered into an alternative investment placement agent agreement (the “Harbor Selling Agreement”), by and among the Partnership, the General Partner, Morgan Stanley Distribution Inc. (“MSDI”) and Harbor Investment Advisory, LLC, a Maryland limited liability company (“Harbor”), which supersedes and replaces the alternative investment selling agent agreement, dated January 19, 2018, between the Partnership, the General Partner and Harbor. Pursuant to the Harbor Selling Agreement, MSDI and Harbor have been appointed as a non-exclusive selling agent and sub-selling agent, respectively, of the Partnership for the purpose of finding eligible investors for Redeemable Units through offerings that are exempt from registration under the Securities Act of 1933, as amended , pursuant to Section 4(a)(2) thereof and Rule 506 of Regulation D promulgated thereunder and for Harbor to serve as an investment advisor to its customers investing in one or more of the partnerships party to the Harbor Selling Agreement; provided, that, included within such appointment, Harbor will provide certain services to certain holders of Redeemable Units of the Partnership who had acquired such Redeemable Units prior to such holders becoming clients of Harbor. The Harbor Selling Agreement continues in effect until September 30, 2019 unless terminated in certain circumstances as set forth in the Harbor Selling Agreement, including by any party on thirty days’ prior written notice, after which the General Partner or the Partnership may, in its sole discretion, renew the Harbor Selling Agreement for additional one-year periods. Pursuant to the Harbor Selling Agreement, the Partnership will pay Harbor an ongoing placement agent fee equal to (i) 1/12 of 2.0% (a 2.0% annual rate) of the net asset value per Redeemable Unit for certain holders of Class A Redeemable Units in the Partnership, and (ii) 1/12 of 0.75% (a 0.75% annual rate) of the net asset value per Redeemable Unit for certain holders of Class D Redeemable Units in the Partnership, as set forth in the Harbor Selling Agreement. The General Partner fees, management fees, incentive fees and professional fees of the Partnership are allocated proportionally to each Class based on the net asset value of the Class. In July 2015, the General Partner delegated certain administrative functions to SS&C Technologies, Inc., a Delaware corporation, currently doing business as SS&C GlobeOp (the “Administrator”). Pursuant to a master services agreement, the Administrator furnishes certain administrative, accounting, regulatory reporting, tax and other services as agreed from time to time. In addition, the Administrator maintains certain books and records of the Partnership. The cost of retaining the Administrator is allocated among the pools operated by the General Partner, including the Partnership.

Basis of Presentation and Summa

Basis of Presentation and Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2019
Accounting Policies [Abstract]
Basis of Presentation and Summary of Significant Accounting Policies	2. Basis of Presentation and Summary of Significant Accounting Policies: The accompanying financial statements and accompanying notes are unaudited but, in the opinion of the General Partner, include all adjustments, consisting only of normal recurring adjustments, necessary for a fair presentation of the Partnership’s financial condition at March 31, 2019 and the results of its operations and changes in partners’ capital for the three months ended March 31, 2019 and 2018. These financial statements present the results for interim periods and do not include all disclosures normally provided in annual financial statements. These financial statements should be read together with the financial statements and notes included in the Partnership’s Annual Report on Form 10-K (the “Form 10-K”) filed with the Securities and Exchange Commission (the “SEC”) for the year ended December 31, 2018. The December 31, 2018 information has been derived from the audited financial statements as of and for the year ended December 31, 2018. Due to the nature of commodity trading, the results of operations for the interim periods presented should not be considered indicative of the results that may be expected for the entire year. Use of Estimates . The preparation of financial statements and accompanying notes in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires the General Partner to make estimates and assumptions that affect the reported amounts of assets and liabilities, income and expenses, and related disclosures of contingent assets and liabilities in the financial statements and accompanying notes. As a result, actual results could differ from these estimates, and those differences could be material. Profit Allocation. The General Partner and each limited partner of the Partnership share in the profits and losses of the Partnership in proportion to the amount of Partnership interest owned by each, except that no limited partner shall be liable for obligations of the Partnership in excess of its capital contribution and profits, if any, net of distributions or redemptions and losses, if any. Statement of Cash Flows. The Partnership has not provided a Statement of Cash Flows, as permitted by Accounting Standards Codification (“ASC”) 230, “Statement of Cash Flows.” Partnership’s Investment in the Funds. The Partnership carries its investment in the Funds at fair value based on the Partnership’s (1) net contribution to the Funds and (2) its allocated share of the undistributed profits and losses, including realized gains (losses) and net change in unrealized gains (losses), of the Funds. Partnership’s/Funds’ Derivative Investments. All commodity interests held by the Partnership/Funds, including derivative financial instruments and derivative commodity instruments, are held for trading purposes. The commodity interests are recorded on the trade date, and open contracts are recorded at fair value (as described in Note 5, “Fair Value Measurements”) at the measurement date. Investments in commodity interests denominated in foreign currencies are translated into U.S. dollars at the exchange rates prevailing at the measurement date. Gains or losses are realized when contracts are liquidated and are determined using the first-in, first-out method. Unrealized gains or losses on open contracts are included as a component of equity in trading account in the Partnership’s/Funds’ Statements of Financial Condition. Net realized gains or losses and net change in unrealized gains or losses are included in the Partnership’s/Funds’ Statements of Income and Expenses. The Partnership and the Funds do not isolate the portion of the results of operations arising from the effect of changes in foreign exchange rates on investments from fluctuations from changes in market prices of investments held. Such fluctuations are included in total trading results in the Partnership’s/Funds’ Statements of Income and Expenses. Partnership’s Cash. The Partnership’s restricted cash is equal to the cash portion of assets on deposit to meet margin requirements, as determined by the exchange or counterparty, and required by MS&Co. At March 31, 2019 and December 31, 2018, the amount of cash held for margin requirements was $10,027,922 and $10,116,332, respectively. Cash that is not classified as restricted cash is therefore classified as unrestricted cash. The Partnership’s restricted and unrestricted cash includes cash denominated in foreign currencies of $( 1,483,719 1,497,026 1,736,101 1,726,375 Income Taxes. Income taxes have not been recorded as each partner is individually liable for the taxes, if any, on its share of the Partnership’s income and expenses. The Partnership follows the guidance of ASC 740, “Income Taxes,” Investment Company Status. Effective January 1, 2014, the Partnership adopted Accounting Standards Update 2013-08 , “Financial Services — Investment Companies (Topic 946): Amendments to the Scope, Measurement and Disclosure Requirements” Net Income (Loss) per Redeemable Unit. Net income (loss) per Redeemable Unit is calculated in accordance with ASC 946, “ Financial Services-Investment Companies There have been no material changes with respect to the Partnership’s critical accounting policies as reported in the Partnership’s Annual Report on Form 10-K for the year ended December 31, 2018.

Financial Highlights

Financial Highlights	3 Months Ended
Financial Highlights	Mar. 31, 2019
Investment Company [Abstract]
Financial Highlights	3. Financial Highlights: Financial highlights for the limited partner Classes as a whole for the three months ended March 31, 2019 and 2018 were as follows: Three Months Ended Three Months Ended March 31, 2019 March 31, 2018 Class A Class D Class Z Class A Class D Class Z Per Redeemable Unit Performance (for a unit outstanding throughout the period):* Net realized and unrealized gains (losses) $ 20.18 $ 24.70 $ 24.89 $ 8.40 $ 10.18 $ 9.51 Net investment loss (8.65) (7.56) (5.80) (10.79) (9.93) (7.38) Increase (decrease) for the period 11.53 17.14 19.09 (2.39) 0.25 2.13 Net asset value per Redeemable Unit, beginning of period 766.28 939.90 947.03 825.63 1,000.00 1,000.00 Net asset value per Redeemable Unit, end of period $ 777.81 $ 957.04 $ 966.12 $ 823.24 $ 1,000.25 $ 1,002.13 Three Months Ended Three Months Ended March 31, 2019 March 31, 2018 Class A Class D Class Z Class A Class D Class Z Ratios to Average Limited Partners’ Capital: Net investment loss* (3.5) % (2.2) % (1.5) % (4.2) % (2.9) % (2.1) % Operating expenses 5.4 % 4.1 % 3.4 % 5.1 % 3.8 % 3.0 % Incentive fees 0.3 % 0.3 % 0.3 % 0.4 % 0.4 % 0.4 % Total expenses 5.7 % 4.4 % 3.7 % 5.5 % 4.2 % 3.4 % Total return: Total return before incentive fees 1.8 % 2.1 % 2.3 % 0.1 % 0.4 % 0.6 % Incentive fees (0.3) % (0.3) % (0.3) % (0.4) % (0.4) % (0.4) % Total return after incentive fees 1.5 % 1.8 % 2.0 % (0.3) % 0.0 % **** 0.2 % * Net investment loss per Redeemable Unit is calculated by dividing the interest income less total expenses by the average number of Redeemable Units outstanding during the period. The net realized and unrealized gains (losses) per Redeemable Unit is a balancing amount necessary to reconcile the change in net asset value per Redeemable Unit with the other per unit information. Annualized (except for incentive fees). * Interest income less total expenses. **** Due to rounding. The above ratios and total return may vary for individual investors based on the timing of capital transactions during the period. Additionally, these ratios are calculated for the limited partner class using the limited partners’ share of income, expenses and average partners’ capital of the Partnership and include the income and expenses allocated from the Funds.

Trading Activities

Trading Activities	3 Months Ended
Trading Activities	Mar. 31, 2019
Brokers and Dealers [Abstract]
Trading Activities	4. Trading Activities: The Partnership was formed for the purpose of trading contracts in a variety of commodity interests, including derivative financial instruments and derivative commodity instruments. The results of the Partnership’s trading activities are shown in the Statements of Income and Expenses. The Partnership also invests certain of its assets through a “master/feeder” structure. The Partnership’s pro-rata The Partnership’s customer agreement with MS&Co. and the Funds’ futures brokerage account agreements with MS&Co. give the Partnership and the Funds, respectively, the legal right to net unrealized gains and losses on open futures contracts and open forward contracts in their respective Statements of Financial Condition. The Partnership and the Funds net, for financial reporting purposes, the unrealized gains and losses on open futures contracts and open forward contracts in their respective Statements of Financial Condition as the criteria under ASC 210-20, Balance Sheet All of the commodity interests owned directly by the Partnership are held for trading purposes. All of the commodity interests owned by the Funds are held for trading purposes. The monthly average number of futures contracts traded directly by the Partnership during the three months ended March 31, 2019 and 2018 were 4,428 and 7,062, respectively. The monthly average number of metals forward contracts traded directly by the Partnership during the three months ended March 31, 2019 and 2018 were 210 and 417, respectively. The monthly average notional value of currency forward contracts traded directly by the Partnership during the three months ended March 31, 2019 and 2018 were $133,463,565 and $186,763,332, respectively. Trading and transaction fees are based on the number of trades executed by the Advisors and the Partnership’s respective percentage ownership of each Fund. All clearing fees paid to MS&Co. are borne directly by the Partnership for its direct trading. In addition, clearing fees are borne by the Funds and allocated to the Funds’ limited partners/non-managing The following tables summarize the gross and net amounts recognized relating to assets and liabilities of the Partnership’s derivatives and their offsetting subject to master netting arrangements or similar agreements as of March 31, 2019 and December 31, 2018, respectively. Gross Amounts Net Amounts Gross Amounts Not Offset in the Offset in the Presented in the Statements of Financial Condition Statements of Statements of Cash Collateral Gross Amounts Financial Financial Financial Received/ Net March 31, 2019 Recognized Condition Condition Instruments Pledged* Amount Assets Futures $ 3,337,971 $ (525,969 ) $ 2,812,002 $ - $ - $ 2,812,002 Forwards 295,089 (295,089 ) - - - - Total assets $ 3,633,060 $ (821,058 ) $ 2,812,002 $ - $ - $ 2,812,002 Liabilities Futures $ (525,969 ) $ 525,969 $ - $ - $ - $ - Forwards (523,492 ) 295,089 (228,403 ) - 228,403 - Total liabilities $ (1,049,461 ) $ 821,058 $ (228,403 ) $ - $ 228,403 $ - Net fair value $ 2,812,002 * Gross Amounts Net Amounts Gross Amounts Not Offset in the Offset in the Presented in the Statements of Financial Condition Statements of Statements of Cash Collateral Gross Amounts Financial Financial Financial Received/ Net December 31, 2018 Recognized Condition Condition Instruments Pledged* Amount Assets Futures $ 2,636,639 $ (664,769 ) $ 1,971,870 $ - $ - $ 1,971,870 Forwards 835,975 (618,836 ) 217,139 - - 217,139 Total assets $ 3,472,614 $ (1,283,605 ) $ 2,189,009 $ - $ - $ 2,189,009 Liabilities Futures $ (664,769 ) $ 664,769 $ - $ - $ - $ - Forwards (618,836 ) 618,836 - - - - Total liabilities $ (1,283,605 ) $ 1,283,605 $ - $ - $ - $ - Net fair value $ 2,189,009 * * In the event of default by the Partnership, MS&Co., the Partnership’s commodity futures broker and the sole counterparty to the Partnership’s non-exchange-traded The following tables indicate the gross fair values of derivative instruments of futures and forward contracts held directly by the Partnership as separate assets and liabilities as of March 31, 2019 and December 31, 2018, respectively. March 31, 2019 Assets Futures Contracts Currencies $ 29,434 Energy 84,861 Grains 445,466 Indices 209,052 Interest Rates U.S. 236,258 Interest Rates Non-U.S. 1,998,711 Livestock 25,870 Metals 45,368 Softs 262,951 Total unrealized appreciation on open futures contracts 3,337,971 Liabilities Futures Contracts Currencies (24,474) Energy (131,850) Grains (2,757) Indices (35,216) Interest Rates U.S. (3,508) Interest Rates Non-U.S. (9,174) Livestock (44,678) Metals (182,162) Softs (92,150) Total unrealized depreciation on open futures contracts (525,969) Net unrealized appreciation on open futures contracts $ 2,812,002 * Assets Forward Contracts Currencies $ 217,127 Metals 77,962 Total unrealized appreciation on open forward contracts 295,089 Liabilities Forward Contracts Currencies (446,485) Metals (77,007) Total unrealized depreciation on open forward contracts (523,492) Net unrealized depreciation on open forward contracts $ (228,403) ** * This amount is in “Net unrealized appreciation on open futures contracts” in the Statements of Financial Condition. ** This amount is in “Net unrealized depreciation on open forward contracts” in the Statements of Financial Condition. December 31, 2018 Assets Futures Contracts Currencies $ 41,947 Energy 647,829 Grains 160,024 Indices 196,704 Interest Rates U.S. 202,570 Interest Rates Non-U.S. 949,077 Livestock 26,050 Metals 140,316 Softs 272,122 Total unrealized appreciation on open futures contracts 2,636,639 Liabilities Futures Contracts Currencies (70,231) Energy (189,364) Grains (29,138) Indices (160,316) Interest Rates U.S. (1,281) Interest Rates Non-U.S. (28,242) Livestock (1,765) Metals (36,545) Softs (147,887) Total unrealized depreciation on open futures contracts (664,769) Net unrealized appreciation on open futures contracts $ 1,971,870 * Assets Forward Contracts Currencies $ 443,534 Metals 392,441 Total unrealized appreciation on open forward contracts 835,975 Liabilities Forward Contracts Currencies (549,780) Metals (69,056) Total unrealized depreciation on open forward contracts (618,836) Net unrealized appreciation on open forward contracts $ 217,139 ** * This amount is in “Net unrealized appreciation on open futures contracts” in the Statements of Financial Condition. This amount is in “Net unrealized appreciation on open forward contracts” in the Statements of Financial Condition. The following table indicates the trading gains and losses, by market sector, on derivative instruments traded directly by the Partnership for the three months ended March 31, 2019 and 2018, respectively. Three Months Ended March 31, Sector 2019 2018 Currencies $ (533,821) $ 64,246 Energy (921,525) (202,013) Grains 260,067 (569,489) Indices 82,617 (1,741,703) Interest Rates U.S. 169,304 532,804 Interest Rates Non-U.S. 2,525,073 933,235 Livestock (172,297) 104,528 Metals (632,712) (1,266,479) Softs 17,959 110,598 Total $ 794,665 * $ (2,034,273) * * This amount is included in “Total trading results” in the Statements of Income and Expenses.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
Fair Value Measurements	Mar. 31, 2019
Fair Value Disclosures [Abstract]
Fair Value Measurements	5. Fair Value Measurements: Partnership’s and the Funds’ Fair Value Measurements The fair value of exchange-traded futures, option and forward contracts is determined by the various exchanges, and reflects the settlement price for each contract as of the close of business on the last business day of the reporting period. The fair value of foreign currency forward contracts is extrapolated on a forward basis from the spot prices quoted as of approximately 3:00 P.M. (E.T.) on the last business day of the reporting period from various exchanges. The fair value of non-exchange-traded The Partnership and the Funds consider prices for commodity futures, swap and option contracts to be based on unadjusted quoted prices in active markets for identical assets and liabilities (Level 1). The values of U.S. Treasury bills, non-exchange-traded March 31, 2019 Total Level 1 Level 2 Level 3 Assets Futures $ 3,337,971 $ 3,337,971 $ - $ - Forwards 295,089 - 295,089 - Total Assets $ 3,633,060 $ 3,337,971 $ 295,089 $ - Liabilities Futures $ 525,969 $ 525,969 $ - $ - Forwards 523,492 - 523,492 - Total Liabilities $ 1,049,461 $ 525,969 $ 523,492 $ - December 31, 2018 Total Level 1 Level 2 Level 3 Assets Futures $ 2,636,639 $ 2,636,639 $ - $ - Forwards 835,975 - 835,975 - Total Assets $ 3,472,614 $ 2,636,639 $ 835,975 $ - Liabilities Futures $ 664,769 $ 664,769 $ - $ - Forwards 618,836 - 618,836 - Total Liabilities $ 1,283,605 $ 664,769 $ 618,836 $ -

Investment in the Funds

Investment in the Funds	3 Months Ended
Investment in the Funds	Mar. 31, 2019
Schedule of Investments [Abstract]
Investment in the Funds	6. Investment in the Funds: On January 1, 2018, the assets allocated to SECOR for trading were invested in SECOR Master, a limited partnership organized under the partnership laws of the State of Delaware. SECOR Master permits accounts managed by SECOR using a variation of the program traded by SECOR Alpha Master Fund L.P., a proprietary, systematic trading program, to invest together in one trading vehicle. The General Partner is also the general partner of SECOR Master. Individual and pooled accounts currently managed by SECOR are permitted to be limited partners of SECOR Master. The General Partner and SECOR believe that trading through this master/feeder structure promotes efficiency and economy in the trading process. The General Partner and SECOR have agreed that SECOR will trade the Partnership’s assets allocated to SECOR at a level that is up to 1.5 times the leverage applied to the assets of SECOR Alpha Master Fund, L.P. On January 12, 2018, approximately 49% of the assets allocated to FORT for trading were invested in FORT Contrarian Master, a limited liability company organized under the limited liability company laws of the State of Delaware. FORT Contrarian Master permits accounts managed by FORT using its Global Contrarian Trading Program, a proprietary, systematic trading system, to invest together in one trading vehicle. The General Partner is also the Trading Manager of FORT Contrarian Master. Individual and pooled accounts currently managed by FORT are permitted to be members of FORT Contrarian Master. The Trading Manager and FORT believe that trading through this master/feeder structure promotes efficiency and economy in the trading process. The Trading Manager and FORT have agreed that FORT will trade the Partnership’s assets allocated to FORT at a level that is up to 1.25 times the assets allocated. The amount of leverage may be increased or decreased in the future. On February 1, 2018, the assets allocated to AE Capital for trading were invested in AE Capital Master, a limited liability company organized under the limited liability company laws of the State of Delaware. AE Capital Master permits accounts managed by AE Capital using its AE Systematic FX Fund Program, a proprietary, systematic trading system, to invest together in one trading vehicle. The General Partner is also the Trading Manager of AE Capital Master. Individual and pooled accounts currently managed by AE Capital are permitted to be members of AE Capital Master. The Trading Manager and AE Capital believe that trading through this master/feeder structure promotes efficiency and economy in the trading process. On February 1, 2019, the assets allocated to ADG for trading were invested in ADG Master, a limited liability company organized under the limited liability company laws of the State of Delaware. ADG Master permits accounts managed by ADG using its Systematic Macro Strategy, a proprietary, systematic trading system, to invest together in one trading vehicle. The General Partner is also the Trading Manager of ADG Master. Individual and pooled accounts currently managed by ADG are permitted to be members of ADG Master. The Trading Manager and ADG believe that trading through this master/feeder structure promotes efficiency and economy in the trading process. On December 1, 2015, the assets allocated to Cambridge for trading were invested in Cambridge Master, a limited partnership organized under the partnership laws of the State of Delaware. Effective October 1, 2018 until its termination effective March 31, 2019, Mesirow had undertaken to perform the Cambridge Initial Advisory Agreement and be bound by its terms in every way as if it were the original party to it in place of Cambridge. Cambridge Master permitted accounts managed by Mesirow/Cambridge using the Asian Markets Alpha Programme and the Emerging Markets Alpha Programme, each a proprietary, systematic trading program, to invest together in one trading vehicle. The Partnership fully redeemed its investment in Cambridge Master on March 31, 2019. The General Partner is not aware of any material changes to the trading programs discussed above or in Note 1, “Organization” during the fiscal quarter ended March 31, 2019. The Partnership’s and the Funds’ trading of futures, forward and option contracts, as applicable, on commodities is done primarily on U.S. and foreign commodity exchanges. The Partnership and the Funds engage in such trading through commodity brokerage accounts maintained with MS&Co. Generally, a limited partner/member in the Funds withdraws all or part of its capital contribution and undistributed profits, if any, from the Funds as of the end of any month (the “Redemption Date”) after a request has been made to the General Partner/Trading Manager at least three days in advance of the Redemption Date. Such withdrawals are classified as a liability when the limited partner/member elects to redeem and informs the Funds. However, a limited partner/member may request a withdrawal as of the end of any day if such request is received by the General Partner/Trading Manager at least three days in advance of the proposed withdrawal day. Management fees, General Partner fees, ongoing selling agent fees and incentive fees are charged at the Partnership level. Clearing fees are borne by the Funds and allocated to the Funds’ limited partners/non-managing As of March 31, 2019, the Partnership owned 64.3% of SECOR Master, 12.2% of FORT Contrarian Master, 66.3% of AE Capital Master and 63.1% of ADG Master. As of December 31, 2018, the Partnership owned 100.0% of Cambridge Master, 84.7% of SECOR Master, 11.5% of FORT Contrarian Master and 79.2% of AE Capital Master. It is the Partnership’s intention to continue to invest in the Funds. The performance of the Partnership is directly affected by the performance of the Funds. Expenses to investors as a result of investment in the Funds are approximately the same as they would be if the Partnership traded directly and the redemption rights are not affected. Summarized information reflecting the total assets, liabilities and partners’/members’ capital of the Funds is shown in the following tables: March 31, 2019 Total Assets Total Liabilities Total Capital Cambridge Master $ 12,234,753 $ 12,234,753 $ - SECOR Master 42,956,875 645,175 42,311,700 FORT Contrarian Master 172,460,627 2,623,913 169,836,714 AE Capital Master 18,810,537 111,558 18,698,979 ADG Master 30,746,424 1,075,711 29,670,713 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 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 three months ended March 31, 2019 Net Investment Total Trading Income (Loss) Results Net Income (Loss) Cambridge Master $ 71,028 $ (1,169,131 ) $ (1,098,103 ) SECOR Master (47,181 ) 3,326,837 3,279,656 FORT Contrarian Master 803,870 19,700,082 20,503,952 AE Capital Master 86,493 (895,582 ) (809,089 ) ADG Master (a) 68,144 (249,709 ) (181,565 ) For the three months ended March 31, 2018 Net Investment Total Trading Income (Loss) Results Net Income (Loss) Cambridge Master $ 85,288 $ 2,010,327 $ 2,095,615 SECOR Master (50,101 ) 3,566,528 3,516,427 FORT Contrarian Master 251,234 (4,009,717 ) (3,758,483 ) AE Capital Master (b) 38,714 (155,473 ) (116,759 ) (a) From February 1, 2019, commencement of operations for ADG Master, through March 31, 2019. (b) From February 1, 2018, commencement of operations for AE Capital Master, through March 31, 2018. Summarized information reflecting the Partnership’s investment in and the Partnership’s pro-rata March 31, 2019 For the three months ended March 31, 2019 % of Expenses Net Partners’ Fair Income Clearing Professional Income Investment Redemptions Funds Capital Value (Loss) Fees Fees (Loss) Objective Permitted Cambridge Master 0.00% $ - $ (1,069,568 ) $ 13,782 $ 14,753 $ (1,098,103 ) Commodity Portfolio Monthly SECOR Master 21.15% 27,224,703 2,349,716 143,150 10,259 2,196,307 Commodity Portfolio Monthly FORT Contrarian Master 16.08% 20,697,208 2,437,928 13,872 1,996 2,422,060 Commodity Portfolio Monthly AE Capital Master 9.65% 12,416,566 (531,229 ) 11,306 10,761 (553,296 ) Commodity Portfolio Monthly ADG Master (a) 14.57% 18,759,620 (96,507 ) 8,061 7,714 (112,282 ) Commodity Portfolio Monthly Total $ 79,098,097 $ 3,090,340 $ 190,171 $ 45,483 $ 2,854,686 December 31, 2018 For the three months ended March 31, 2018 % of Expenses Net Partners’ Fair Income Clearing Professional Income Investment Redemptions Funds Capital Value (Loss) Fees Fees (Loss) Objective Permitted Cambridge Master 12.90% $ 17,284,725 $ 1,992,300 $ 20,846 $ 15,486 $ 1,955,968 Commodity Portfolio Monthly SECOR Master 22.27% 29,850,097 3,128,180 120,541 14,653 2,992,986 Commodity Portfolio Monthly FORT Contrarian Master 15.30% 20,501,423 (859,945 ) 19,261 7,647 (886,853 ) Commodity Portfolio Monthly AE Capital Master (b) 11.64% 15,603,718 (75,391 ) 2,521 8,988 (86,900 ) Commodity Portfolio Monthly Total $ 83,239,963 $ 4,185,144 $ 163,169 $ 46,774 $ 3,975,201 (a) From February 1, 2019, the date the Partnership invested into ADG Master, through March 31, 2019. (b) From February 1, 2018, the date the Partnership invested into AE Capital Master, through March 31, 2018.

Financial Instrument Risks

Financial Instrument Risks	3 Months Ended
Financial Instrument Risks	Mar. 31, 2019
Investments, All Other Investments [Abstract]
Financial Instrument Risks	7. Financial Instrument Risks: In the normal course of business, the Partnership and the Funds are parties to financial instruments with off-balance-sheet risk, including derivative financial instruments and derivative commodity instruments. These financial instruments may include forwards, futures, options and swaps, whose values are based upon an underlying asset, index, or reference rate, and generally represent future commitments to exchange currencies or cash balances, to purchase or sell other financial instruments at specific terms at specified future dates, or, in the case of derivative commodity instruments, to have a reasonable possibility to be settled in cash, through physical delivery or with another financial instrument. These instruments may be traded on an exchange, a swap execution facility or over-the-counter (“OTC”). Exchange-traded instruments include futures and certain standardized forward, swap and option contracts. Specific market movements of commodities or futures contracts underlying an option cannot accurately be predicted. The purchaser of an option may lose the entire premium paid for the option. The writer or seller of an option has unlimited risk. Certain swap contracts may also be traded on a swap execution facility or OTC. OTC contracts are negotiated between contracting parties and also include certain forward and option contracts. Each of these instruments is subject to various risks similar to those related to the underlying financial instruments, including market and credit risk. In general, the risks associated with OTC contracts are greater than those associated with exchange-traded instruments because of the greater risk of default by the counterparty to an OTC contract. The General Partner estimates that at any given time approximately 26.9% to 59.5% of the Partnership’s/Funds’ contracts are traded OTC. Futures Contracts. The Partnership and the Funds trade futures contracts. A futures contract is a firm commitment to buy or sell a specified quantity of investments, currency or a standardized amount of a deliverable grade commodity, at a specified price on a specified future date, unless the contract is closed before the delivery date or the delivery quantity is something where physical delivery cannot occur (such as the S&P 500 Index), whereby such contract is settled in cash. Payments (“variation margin”) may be made or received by the Partnership and the Funds each business day, depending on the daily fluctuations in the value of the underlying contracts, and are recorded as unrealized gains or losses by the Partnership and the Funds. When the contract is closed, the Partnership and the Funds record a realized gain or loss equal to the difference between the value of the contract at the time it was opened and the value at the time it was closed. Transactions in futures contracts require participants to make both initial margin deposits of cash or other assets and variation margin deposits, through the futures broker, directly with the exchange on which the contracts are traded. Net realized gains (losses) and net change in unrealized gains (losses) on futures contracts are included in the Partnership’s/Funds’ Statements of Income and Expenses. Forward Foreign Currency Contracts. Forward foreign currency contracts are those contracts where the Partnership and the Funds agree to receive or deliver a fixed quantity of foreign currency for an agreed-upon price on an agreed-upon future date. Forward foreign currency contracts are valued daily, and the Partnership’s and the Funds’ net equity therein, representing unrealized gain or loss on the contracts as measured by the difference between the forward foreign exchange rates at the dates of entry into the contracts and the forward rates at the reporting date, is included in the Partnership’s/Funds’ Statements of Financial Condition. Net realized gains (losses) and net change in unrealized gains (losses) on forward foreign currency contracts are recognized in the period in which the contract is closed or the changes occur, respectively, and are included in the Partnership’s/Funds’ Statements of Income and Expenses. London Metals Exchange Forward Contracts. Metal contracts traded on the London Metal Exchange (“LME”) represent a firm commitment to buy or sell a specified quantity of aluminum, copper, lead, nickel, tin or zinc. LME contracts traded by the Partnership and the Funds are cash settled based on prompt dates published by the LME. Variation margin may be made or received by the Partnership and the Funds each business day, depending on the daily fluctuations in the value of the underlying contracts, and are recorded as unrealized gains or losses by the Partnership and the Funds. A contract is considered offset when all long positions have been matched with a like number of short positions settling on the same prompt date. When the contract is closed at the prompt date, the Partnership and the Funds record a realized gain or loss equal to the difference between the value of the contract at the time it was opened and the value at the time it was closed. Transactions in LME contracts require participants to make both initial margin deposits of cash or other assets and variation margin deposits, through the broker, directly with the LME. Net realized gains (losses) and net change in unrealized gains (losses) on metal contracts are included in the Partnership’s/Funds’ Statements of Income and Expenses. Options. The Partnership and the Funds may purchase and write (sell) both exchange-listed and OTC options on commodities or financial instruments. An option is a contract allowing, but not requiring, its holder to buy (call) or sell (put) a specific or standard commodity or financial instrument at a specified price during a specified time period. The option premium is the total price paid or received for the option contract. When the Partnership/Funds write an option, the premium received is recorded as a liability in the Partnership’s/Funds’ Statements of Financial Condition and marked-to-market daily. When the Partnership/Funds purchase an option, the premium paid is recorded as an asset in the Partnership’s/Funds’ Statements of Financial Condition and marked-to-market daily. Net realized gains (losses) and net change in unrealized gains (losses) on option contracts are included in the Partnership’s/Funds’ Statements of Income and Expenses. As both a buyer and seller of options, the Partnership/Funds pay or receive a premium at the outset and then bear the risk of unfavorable changes in the price of the contract underlying the option. Written options expose the Partnership/Funds to potentially unlimited liability; for purchased options, the risk of loss is limited to the premiums paid. Certain written put options permit cash settlement and do not require the option holder to own the reference asset. The Partnership/Funds do not consider these contracts to be guarantees. Market risk is the potential for changes in the value of the financial instruments traded by the Partnership/Funds due to market changes, including interest and foreign exchange rate movements and fluctuations in commodity or security prices. Market risk is directly impacted by the volatility and liquidity in the markets in which the related underlying assets are traded. The Partnership and the Funds are exposed to market risk equal to the value of the futures and forward contracts held and unlimited liability on such contracts sold short. Credit risk is the possibility that a loss may occur due to the failure of a counterparty to perform according to the terms of a contract. The Partnership’s/Funds’ risk of loss in the event of counterparty default is typically limited to the amounts recognized in the Statements of Financial Condition and is not represented by the contract or notional amounts of the instruments. The Partnership’s/Funds’ risk of loss is reduced through the use of legally enforceable master netting agreements with counterparties that permit the Partnership/Funds to offset unrealized gains and losses and other assets and liabilities with such counterparties upon the occurrence of certain events. The Partnership/Funds have credit risk and concentration risk, as MS&Co., an MS&Co. affiliate or JPMorgan are counterparties or brokers with respect to the Partnership’s/Funds’ assets. Credit risk with respect to exchange-traded instruments is reduced to the extent that, through MS&Co. or an MS&Co. affiliate, the Partnership’s/Funds’ counterparty is an exchange or clearing organization. The General Partner monitors and attempts to mitigate the Partnership’s/Funds’ risk exposure on a daily basis through financial, credit and risk management monitoring systems and, accordingly, believes that it has effective procedures for evaluating and limiting the credit and market risks to which the Partnership/Funds may be subject. These monitoring systems generally allow the General Partner to statistically analyze actual trading results with risk-adjusted performance indicators and correlation statistics. In addition, online monitoring systems provide account analysis of futures, forward and option contracts by sector, margin requirements, gain and loss transactions and collateral positions. The majority of these financial instruments mature within one year of the inception date. However, due to the nature of the Partnership’s/Funds’ business, these instruments may not be held to maturity. The risk to the limited partners that have purchased Redeemable Units is limited to the amount of their share of the Partnership’s net assets and undistributed profits. This limited liability is a result of the organization of the Partnership as a limited partnership under New York law. In the ordinary course of business, the Partnership/Funds enter into contracts and agreements that contain various representations and warranties and which provide general indemnifications. The Partnership’s/Funds’ maximum exposure under these arrangements cannot be determined, as this could include future claims that have not yet been made against the Partnership/Funds. The Partnership/Funds consider the risk of any future obligation relating to these indemnifications to be remote.

Subsequent Events

Subsequent Events	3 Months Ended
Subsequent Events	Mar. 31, 2019
Subsequent Events [Abstract]
Subsequent Events	8. Subsequent Events: The General Partner evaluates events that occur after the balance sheet date but before and up until financial statements are available to be issued. The General Partner has assessed the subsequent events through the date the financial statements were issued and has determined that, other than that described below, there were no subsequent events requiring adjustment to or disclosure in the financial statements. Effective April 3, 2019, the General Partner terminated AE Capital as an Advisor to the Partnership. For the interim period from April 4, 2019 through April 30, 2019, the Partnership’s assets previously allocated to AE Capital were not charged a management fee and was credited with interest income at a rate equal to the monthly average of the 4-Week U.S. Treasury bill discount rate. On April 30, 2019, the Partnership fully redeemed its investment in AE Capital Master. The assets previously allocated to AE Capital were reallocated to the other commodity trading advisors in the Partnership.

Basis of Presentation and Sum_2

Basis of Presentation and Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2019
Accounting Policies [Abstract]
Use of Estimates	Use of Estimates . The preparation of financial statements and accompanying notes in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires the General Partner to make estimates and assumptions that affect the reported amounts of assets and liabilities, income and expenses, and related disclosures of contingent assets and liabilities in the financial statements and accompanying notes. As a result, actual results could differ from these estimates, and those differences could be material.
Profit Allocation	Profit Allocation. The General Partner and each limited partner of the Partnership share in the profits and losses of the Partnership in proportion to the amount of Partnership interest owned by each, except that no limited partner shall be liable for obligations of the Partnership in excess of its capital contribution and profits, if any, net of distributions or redemptions and losses, if any.
Statement of Cash Flows	Statement of Cash Flows. The Partnership has not provided a Statement of Cash Flows, as permitted by Accounting Standards Codification (“ASC”) 230, “Statement of Cash Flows.”
Partnership's Investment in the Funds	Partnership’s Investment in the Funds. The Partnership carries its investment in the Funds at fair value based on the Partnership’s (1) net contribution to the Funds and (2) its allocated share of the undistributed profits and losses, including realized gains (losses) and net change in unrealized gains (losses), of the Funds.
Partnership's/Funds' Derivative Investments	Partnership’s/Funds’ Derivative Investments. All commodity interests held by the Partnership/Funds, including derivative financial instruments and derivative commodity instruments, are held for trading purposes. The commodity interests are recorded on the trade date, and open contracts are recorded at fair value (as described in Note 5, “Fair Value Measurements”) at the measurement date. Investments in commodity interests denominated in foreign currencies are translated into U.S. dollars at the exchange rates prevailing at the measurement date. Gains or losses are realized when contracts are liquidated and are determined using the first-in, first-out method. Unrealized gains or losses on open contracts are included as a component of equity in trading account in the Partnership’s/Funds’ Statements of Financial Condition. Net realized gains or losses and net change in unrealized gains or losses are included in the Partnership’s/Funds’ Statements of Income and Expenses. The Partnership and the Funds do not isolate the portion of the results of operations arising from the effect of changes in foreign exchange rates on investments from fluctuations from changes in market prices of investments held. Such fluctuations are included in total trading results in the Partnership’s/Funds’ Statements of Income and Expenses.
Partnership's Cash	Partnership’s Cash. The Partnership’s restricted cash is equal to the cash portion of assets on deposit to meet margin requirements, as determined by the exchange or counterparty, and required by MS&Co. At March 31, 2019 and December 31, 2018, the amount of cash held for margin requirements was $10,027,922 and $10,116,332, respectively. Cash that is not classified as restricted cash is therefore classified as unrestricted cash. The Partnership’s restricted and unrestricted cash includes cash denominated in foreign currencies of $( 1,483,719 1,497,026 1,736,101 1,726,375
Income Taxes	Income Taxes. Income taxes have not been recorded as each partner is individually liable for the taxes, if any, on its share of the Partnership’s income and expenses. The Partnership follows the guidance of ASC 740, “Income Taxes,”
Investment Company Status	Investment Company Status. Effective January 1, 2014, the Partnership adopted Accounting Standards Update 2013-08 , “Financial Services — Investment Companies (Topic 946): Amendments to the Scope, Measurement and Disclosure Requirements”
Net Income (Loss) per Redeemable Unit	Net Income (Loss) per Redeemable Unit. Net income (loss) per Redeemable Unit is calculated in accordance with ASC 946, “ Financial Services-Investment Companies There have been no material changes with respect to the Partnership’s critical accounting policies as reported in the Partnership’s Annual Report on Form 10-K for the year ended December 31, 2018.

Financial Highlights (Tables)

Financial Highlights (Tables)	3 Months Ended
Financial Highlights (Tables)	Mar. 31, 2019
Investment Company [Abstract]
Financial Highlights	Financial highlights for the limited partner Classes as a whole for the three months ended March 31, 2019 and 2018 were as follows: Three Months Ended Three Months Ended March 31, 2019 March 31, 2018 Class A Class D Class Z Class A Class D Class Z Per Redeemable Unit Performance (for a unit outstanding throughout the period):* Net realized and unrealized gains (losses) $ 20.18 $ 24.70 $ 24.89 $ 8.40 $ 10.18 $ 9.51 Net investment loss (8.65) (7.56) (5.80) (10.79) (9.93) (7.38) Increase (decrease) for the period 11.53 17.14 19.09 (2.39) 0.25 2.13 Net asset value per Redeemable Unit, beginning of period 766.28 939.90 947.03 825.63 1,000.00 1,000.00 Net asset value per Redeemable Unit, end of period $ 777.81 $ 957.04 $ 966.12 $ 823.24 $ 1,000.25 $ 1,002.13 Three Months Ended Three Months Ended March 31, 2019 March 31, 2018 Class A Class D Class Z Class A Class D Class Z Ratios to Average Limited Partners’ Capital: Net investment loss* (3.5) % (2.2) % (1.5) % (4.2) % (2.9) % (2.1) % Operating expenses 5.4 % 4.1 % 3.4 % 5.1 % 3.8 % 3.0 % Incentive fees 0.3 % 0.3 % 0.3 % 0.4 % 0.4 % 0.4 % Total expenses 5.7 % 4.4 % 3.7 % 5.5 % 4.2 % 3.4 % Total return: Total return before incentive fees 1.8 % 2.1 % 2.3 % 0.1 % 0.4 % 0.6 % Incentive fees (0.3) % (0.3) % (0.3) % (0.4) % (0.4) % (0.4) % Total return after incentive fees 1.5 % 1.8 % 2.0 % (0.3) % 0.0 % **** 0.2 % * Net investment loss per Redeemable Unit is calculated by dividing the interest income less total expenses by the average number of Redeemable Units outstanding during the period. The net realized and unrealized gains (losses) per Redeemable Unit is a balancing amount necessary to reconcile the change in net asset value per Redeemable Unit with the other per unit information. Annualized (except for incentive fees). * Interest income less total expenses. **** Due to rounding.

Trading Activities (Tables)

Trading Activities (Tables)	3 Months Ended
Trading Activities (Tables)	Mar. 31, 2019
Brokers and Dealers [Abstract]
Summary of Gross and Net Amounts Recognized Relating to Assets and Liabilities of Partnership's Derivatives	The following tables summarize the gross and net amounts recognized relating to assets and liabilities of the Partnership’s derivatives and their offsetting subject to master netting arrangements or similar agreements as of March 31, 2019 and December 31, 2018, respectively. Gross Amounts Net Amounts Gross Amounts Not Offset in the Offset in the Presented in the Statements of Financial Condition Statements of Statements of Cash Collateral Gross Amounts Financial Financial Financial Received/ Net March 31, 2019 Recognized Condition Condition Instruments Pledged* Amount Assets Futures $ 3,337,971 $ (525,969 ) $ 2,812,002 $ - $ - $ 2,812,002 Forwards 295,089 (295,089 ) - - - - Total assets $ 3,633,060 $ (821,058 ) $ 2,812,002 $ - $ - $ 2,812,002 Liabilities Futures $ (525,969 ) $ 525,969 $ - $ - $ - $ - Forwards (523,492 ) 295,089 (228,403 ) - 228,403 - Total liabilities $ (1,049,461 ) $ 821,058 $ (228,403 ) $ - $ 228,403 $ - Net fair value $ 2,812,002 * Gross Amounts Net Amounts Gross Amounts Not Offset in the Offset in the Presented in the Statements of Financial Condition Statements of Statements of Cash Collateral Gross Amounts Financial Financial Financial Received/ Net December 31, 2018 Recognized Condition Condition Instruments Pledged* Amount Assets Futures $ 2,636,639 $ (664,769 ) $ 1,971,870 $ - $ - $ 1,971,870 Forwards 835,975 (618,836 ) 217,139 - - 217,139 Total assets $ 3,472,614 $ (1,283,605 ) $ 2,189,009 $ - $ - $ 2,189,009 Liabilities Futures $ (664,769 ) $ 664,769 $ - $ - $ - $ - Forwards (618,836 ) 618,836 - - - - Total liabilities $ (1,283,605 ) $ 1,283,605 $ - $ - $ - $ - Net fair value $ 2,189,009 * * In the event of default by the Partnership, MS&Co., the Partnership’s commodity futures broker and the sole counterparty to the Partnership’s non-exchange-traded
Gross Fair Values of Derivative Instruments of Futures and Forward Contracts Traded	The following tables indicate the gross fair values of derivative instruments of futures and forward contracts held directly by the Partnership as separate assets and liabilities as of March 31, 2019 and December 31, 2018, respectively. March 31, 2019 Assets Futures Contracts Currencies $ 29,434 Energy 84,861 Grains 445,466 Indices 209,052 Interest Rates U.S. 236,258 Interest Rates Non-U.S. 1,998,711 Livestock 25,870 Metals 45,368 Softs 262,951 Total unrealized appreciation on open futures contracts 3,337,971 Liabilities Futures Contracts Currencies (24,474) Energy (131,850) Grains (2,757) Indices (35,216) Interest Rates U.S. (3,508) Interest Rates Non-U.S. (9,174) Livestock (44,678) Metals (182,162) Softs (92,150) Total unrealized depreciation on open futures contracts (525,969) Net unrealized appreciation on open futures contracts $ 2,812,002 * Assets Forward Contracts Currencies $ 217,127 Metals 77,962 Total unrealized appreciation on open forward contracts 295,089 Liabilities Forward Contracts Currencies (446,485) Metals (77,007) Total unrealized depreciation on open forward contracts (523,492) Net unrealized depreciation on open forward contracts $ (228,403) ** * This amount is in “Net unrealized appreciation on open futures contracts” in the Statements of Financial Condition. ** This amount is in “Net unrealized depreciation on open forward contracts” in the Statements of Financial Condition. December 31, 2018 Assets Futures Contracts Currencies $ 41,947 Energy 647,829 Grains 160,024 Indices 196,704 Interest Rates U.S. 202,570 Interest Rates Non-U.S. 949,077 Livestock 26,050 Metals 140,316 Softs 272,122 Total unrealized appreciation on open futures contracts 2,636,639 Liabilities Futures Contracts Currencies (70,231) Energy (189,364) Grains (29,138) Indices (160,316) Interest Rates U.S. (1,281) Interest Rates Non-U.S. (28,242) Livestock (1,765) Metals (36,545) Softs (147,887) Total unrealized depreciation on open futures contracts (664,769) Net unrealized appreciation on open futures contracts $ 1,971,870 * Assets Forward Contracts Currencies $ 443,534 Metals 392,441 Total unrealized appreciation on open forward contracts 835,975 Liabilities Forward Contracts Currencies (549,780) Metals (69,056) Total unrealized depreciation on open forward contracts (618,836) Net unrealized appreciation on open forward contracts $ 217,139 ** * This amount is in “Net unrealized appreciation on open futures contracts” in the Statements of Financial Condition. ** This amount is in “Net unrealized appreciation on open forward contracts” in the Statements of Financial Condition.
Trading Gains and Losses by Market Sector on Derivative Instruments Traded	The following table indicates the trading gains and losses, by market sector, on derivative instruments traded directly by the Partnership for the three months ended March 31, 2019 and 2018, respectively. Three Months Ended March 31, Sector 2019 2018 Currencies $ (533,821) $ 64,246 Energy (921,525) (202,013) Grains 260,067 (569,489) Indices 82,617 (1,741,703) Interest Rates U.S. 169,304 532,804 Interest Rates Non-U.S. 2,525,073 933,235 Livestock (172,297) 104,528 Metals (632,712) (1,266,479) Softs 17,959 110,598 Total $ 794,665 * $ (2,034,273) * *** This amount is included in “Total trading results” in the Statements of Income and Expenses.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
Fair Value Measurements (Tables)	Mar. 31, 2019
Fair Value Disclosures [Abstract]
Summary of Assets and Liabilities Measured at Fair Value	March 31, 2019 Total Level 1 Level 2 Level 3 Assets Futures $ 3,337,971 $ 3,337,971 $ - $ - Forwards 295,089 - 295,089 - Total Assets $ 3,633,060 $ 3,337,971 $ 295,089 $ - Liabilities Futures $ 525,969 $ 525,969 $ - $ - Forwards 523,492 - 523,492 - Total Liabilities $ 1,049,461 $ 525,969 $ 523,492 $ - December 31, 2018 Total Level 1 Level 2 Level 3 Assets Futures $ 2,636,639 $ 2,636,639 $ - $ - Forwards 835,975 - 835,975 - Total Assets $ 3,472,614 $ 2,636,639 $ 835,975 $ - Liabilities Futures $ 664,769 $ 664,769 $ - $ - Forwards 618,836 - 618,836 - Total Liabilities $ 1,283,605 $ 664,769 $ 618,836 $ -

Investment in the Funds (Tables

Investment in the Funds (Tables)	3 Months Ended
Investment in the Funds (Tables)	Mar. 31, 2019
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: March 31, 2019 Total Assets Total Liabilities Total Capital Cambridge Master $ 12,234,753 $ 12,234,753 $ - SECOR Master 42,956,875 645,175 42,311,700 FORT Contrarian Master 172,460,627 2,623,913 169,836,714 AE Capital Master 18,810,537 111,558 18,698,979 ADG Master 30,746,424 1,075,711 29,670,713 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
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 three months ended March 31, 2019 Net Investment Income (Loss) Total Trading Results Net Income (Loss) Cambridge Master $ 71,028 $ (1,169,131 ) $ (1,098,103 ) SECOR Master (47,181 ) 3,326,837 3,279,656 FORT Contrarian Master 803,870 19,700,082 20,503,952 AE Capital Master 86,493 (895,582 ) (809,089 ) ADG Master (a) 68,144 (249,709 ) (181,565 ) For the three months ended March 31, 2018 Net Investment Income (Loss) Total Trading Results Net Income (Loss) Cambridge Master $ 85,288 $ 2,010,327 $ 2,095,615 SECOR Master (50,101 ) 3,566,528 3,516,427 FORT Contrarian Master 251,234 (4,009,717 ) (3,758,483 ) AE Capital Master (b) 38,714 (155,473 ) (116,759 ) (a) From February 1, 2019, commencement of operations for ADG Master, through March 31, 2019. (b) From February 1, 2018, commencement of operations for AE Capital Master, through March 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: March 31, 2019 For the three months ended March 31, 2019 Expenses Funds % of Partners’ Capital Fair Value Income (Loss) Clearing Fees Professional Fees Net Income (Loss) Investment Objective Redemptions Permitted Cambridge Master 0.00 % $ - $ (1,069,568 ) $ 13,782 $ 14,753 $ (1,098,103 ) Commodity Portfolio Monthly SECOR Master 21.15 % 27,224,703 2,349,716 143,150 10,259 2,196,307 Commodity Portfolio Monthly FORT Contrarian Master 16.08 % 20,697,208 2,437,928 13,872 1,996 2,422,060 Commodity Portfolio Monthly AE Capital Master 9.65 % 12,416,566 (531,229 ) 11,306 10,761 (553,296 ) Commodity Portfolio Monthly ADG Master (a) 14.57 % 18,759,620 (96,507 ) 8,061 7,714 (112,282 ) Commodity Portfolio Monthly Total $ 79,098,097 $ 3,090,340 $ 190,171 $ 45,483 $ 2,854,686 December 31, 2018 For the three months ended March 31, 2018 Expenses Funds % of Partners’ Capital Fair Value Income (Loss) Clearing Fees Professional Fees Net Income (Loss) Investment Objective Redemptions Permitted Cambridge Master 12.90 % $ 17,284,725 $ 1,992,300 $ 20,846 $ 15,486 $ 1,955,968 Commodity Portfolio Monthly SECOR Master 22.27 % 29,850,097 3,128,180 120,541 14,653 2,992,986 Commodity Portfolio Monthly FORT Contrarian Master 15.30 % 20,501,423 (859,945 ) 19,261 7,647 (886,853 ) Commodity Portfolio Monthly AE Capital Master (b) 11.64 % 15,603,718 (75,391 ) 2,521 8,988 (86,900 ) Commodity Portfolio Monthly Total $ 83,239,963 $ 4,185,144 $ 163,169 $ 46,774 $ 3,975,201 (a) From February 1, 2019, the date the Partnership invested into ADG Master, through March 31, 2019. (b) From February 1, 2018, the date the Partnership invested into AE Capital Master, through March 31, 2018.

Organization - Additional Infor

Organization - Additional Information (Detail) - $ / shares	Nov. 01, 2018	Mar. 31, 2019	Oct. 07, 2004	Dec. 04, 2003	Apr. 30, 2003
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Number of redeemable units of limited partnership interest issued and sold during initial public offering					36,616
Redeemable Units per share					$ 1,000
Number of Redeemable Units authorized to be sold during initial public offering period			1,000,000	700,000	300,000
Maximum number of Redeemable Units sold by the Partnership		0
Class D Redeemable Units [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Monthly ongoing selling agent fee		0.0625%
Ongoing selling agent fee		0.75%
Class D Redeemable Units [Member] \| Morgan Stanley Wealth Management [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Ongoing selling agent fee		0.75%
Class D Redeemable Units [Member] \| Morgan Stanley Distribution Inc [Member] \| Harbor Selling Agreement [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Monthly ongoing selling agent fee	6.25%
Ongoing selling agent fee	0.75%
Class A Redeemable Units [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Monthly ongoing selling agent fee		0.1667%
Ongoing selling agent fee		2.00%
Class A Redeemable Units [Member] \| Morgan Stanley Wealth Management [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Ongoing selling agent fee		2.00%
Class A Redeemable Units [Member] \| Morgan Stanley Distribution Inc [Member] \| Harbor Selling Agreement [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Monthly ongoing selling agent fee	16.67%
Ongoing selling agent fee	2.00%

Basis of Presentation and Sum_3

Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Cash denominated in foreign currencies, cost	$ 1,497,026	$ 1,726,375
Cash denominated in foreign currencies, proceeds	1,483,719	1,736,101
Restricted cash held for margin	10,027,922	$ 10,116,332
Uncertain tax position	$ 0
Open tax year	2015 2016 2017 2018

Financial Highlights - Schedule

Financial Highlights - Schedule of Changes in Net Asset Value (Detail) - $ / shares	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Class A Redeemable Units [Member]
Per Redeemable Unit Performance (for a unit outstanding throughout the period):
Net realized and unrealized gains (losses)	$ 20.18	$ 8.40
Net investment loss	(8.65)	(10.79)
Increase (decrease) for the period	11.53	(2.39)
Net asset value per Redeemable Unit, beginning of period	766.28	825.63
Net asset value per Redeemable Unit, end of period	777.81	823.24
Class D Redeemable Units [Member]
Per Redeemable Unit Performance (for a unit outstanding throughout the period):
Net realized and unrealized gains (losses)	24.70	10.18
Net investment loss	(7.56)	(9.93)
Increase (decrease) for the period	17.14	0.25
Net asset value per Redeemable Unit, beginning of period	939.90	1,000
Net asset value per Redeemable Unit, end of period	957.04	1,000.25
Class Z Redeemable Units [Member]
Per Redeemable Unit Performance (for a unit outstanding throughout the period):
Net realized and unrealized gains (losses)	24.89	9.51
Net investment loss	(5.80)	(7.38)
Increase (decrease) for the period	19.09	2.13
Net asset value per Redeemable Unit, beginning of period	947.03	1,000
Net asset value per Redeemable Unit, end of period	$ 966.12	$ 1,002.13

Financial Highlights - Ratios t

Financial Highlights - Ratios to Average Limited Partners' Capital (Detail)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Class A Redeemable Units [Member]
Ratios to Average Limited Partners' Capital:
Net investment loss	(3.50%)	(4.20%)
Operating expenses	5.40%	5.10%
Incentive fees	0.30%	0.40%
Total expenses	5.70%	5.50%
Total return:
Total return before incentive fees	1.80%	0.10%
Incentive fees	(0.30%)	(0.40%)
Total return after incentive fees	1.50%	(0.30%)
Class D Redeemable Units [Member]
Ratios to Average Limited Partners' Capital:
Net investment loss	(2.20%)	(2.90%)
Operating expenses	4.10%	3.80%
Incentive fees	0.30%	0.40%
Total expenses	4.40%	4.20%
Total return:
Total return before incentive fees	2.10%	0.40%
Incentive fees	(0.30%)	(0.40%)
Total return after incentive fees	1.80%	0.00%
Class Z Redeemable Units [Member]
Ratios to Average Limited Partners' Capital:
Net investment loss	(1.50%)	(2.10%)
Operating expenses	3.40%	3.00%
Incentive fees	0.30%	0.40%
Total expenses	3.70%	3.40%
Total return:
Total return before incentive fees	2.30%	0.60%
Incentive fees	(0.30%)	(0.40%)
Total return after incentive fees	2.00%	0.20%

Financial Instrument Risks - Ad

Financial Instrument Risks - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2019
Concentration Risk [Line Items]
Financial instruments maturity period	1 year
Minimum [Member] \| Credit Concentration Risk [Member] \| Partnership's/Fund's Contracts [Member] \| Over the Counter [Member]
Concentration Risk [Line Items]
Concentration risk percentage	26.90%
Maximum [Member] \| Credit Concentration Risk [Member] \| Partnership's/Fund's Contracts [Member] \| Over the Counter [Member]
Concentration Risk [Line Items]
Concentration risk percentage	59.50%

Trading Activities - Additional

Trading Activities - Additional Information (Detail)	3 Months Ended
Trading Activities - Additional Information (Detail)	Mar. 31, 2019USD ($)Contracts	Mar. 31, 2018USD ($)Contracts
Futures Contracts [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Average number of derivative contracts held	4,428	7,062
Forward Contracts [Member] \| Metals [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Average number of derivative contracts held	210	417
Forward Contracts [Member] \| Currencies [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Average notional value of derivative \| $	$ 133,463,565	$ 186,763,332

Trading Activities - Summary of

Trading Activities - Summary of Gross and Net Amounts Recognized Relating to Assets and Liabilities of Partnership's Derivatives (Detail) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Derivative [Line Items]
Gross Amounts Recognized, Assets	$ 3,633,060	$ 3,472,614
Gross Amounts Offset in the Statements of Financial Condition, Assets	(821,058)	(1,283,605)
Amounts Presented in the Statements of Financial Condition, Assets	2,812,002	2,189,009
Financial Instruments, Assets	0	0
Cash Collateral Received/Pledged, Assets	0	0
Net Amount, Assets	2,812,002	2,189,009
Gross Amounts Recognized, Liabilities	(1,049,461)	(1,283,605)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	821,058	1,283,605
Amounts Presented in the Statements of Financial Condition, Liabilities	(228,403)	0
Financial Instruments, Liabilities	0	0
Cash Collateral Received/Pledged, Liabilities	228,403	0
Net Amount, Liabilities	0	0
Net fair value	2,812,002	2,189,009
Futures Contracts [Member]
Derivative [Line Items]
Gross Amounts Recognized, Assets	3,337,971	2,636,639
Gross Amounts Offset in the Statements of Financial Condition, Assets	(525,969)	(664,769)
Amounts Presented in the Statements of Financial Condition, Assets	2,812,002	1,971,870
Financial Instruments, Assets	0	0
Cash Collateral Received/Pledged, Assets	0	0
Net Amount, Assets	2,812,002	1,971,870
Gross Amounts Recognized, Liabilities	(525,969)	(664,769)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	525,969	664,769
Amounts Presented in the Statements of Financial Condition, Liabilities	0	0
Financial Instruments, Liabilities	0	0
Cash Collateral Received/Pledged, Liabilities	0	0
Net Amount, Liabilities	0	0
Forward Contracts [Member]
Derivative [Line Items]
Gross Amounts Recognized, Assets	295,089	835,975
Gross Amounts Offset in the Statements of Financial Condition, Assets	(295,089)	(618,836)
Amounts Presented in the Statements of Financial Condition, Assets	0	217,139
Financial Instruments, Assets	0	0
Cash Collateral Received/Pledged, Assets	0	0
Net Amount, Assets	0	217,139
Gross Amounts Recognized, Liabilities	(523,492)	(618,836)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	295,089	618,836
Amounts Presented in the Statements of Financial Condition, Liabilities	(228,403)	0
Financial Instruments, Liabilities	0	0
Cash Collateral Received/Pledged, Liabilities	228,403	0
Net Amount, Liabilities	$ 0	$ 0

Trading Activities - Gross Fair

Trading Activities - Gross Fair Values of Derivative Instruments of Futures and Forward Contracts Traded (Detail) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	$ 3,337,971	$ 2,636,639
Total unrealized depreciation on open contracts	(525,969)	(664,769)
Net unrealized appreciation (depreciation) on open contracts	2,812,002	1,971,870
Futures Contracts [Member] \| Currencies [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	29,434	41,947
Total unrealized depreciation on open contracts	(24,474)	(70,231)
Futures Contracts [Member] \| Energy [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	84,861	647,829
Total unrealized depreciation on open contracts	(131,850)	(189,364)
Futures Contracts [Member] \| Grains [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	445,466	160,024
Total unrealized depreciation on open contracts	(2,757)	(29,138)
Futures Contracts [Member] \| Indices [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	209,052	196,704
Total unrealized depreciation on open contracts	(35,216)	(160,316)
Futures Contracts [Member] \| Interest Rates U.S. [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	236,258	202,570
Total unrealized depreciation on open contracts	(3,508)	(1,281)
Futures Contracts [Member] \| Interest Rates Non-U.S. [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	1,998,711	949,077
Total unrealized depreciation on open contracts	(9,174)	(28,242)
Futures Contracts [Member] \| Livestock [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	25,870	26,050
Total unrealized depreciation on open contracts	(44,678)	(1,765)
Futures Contracts [Member] \| Metals [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	45,368	140,316
Total unrealized depreciation on open contracts	(182,162)	(36,545)
Futures Contracts [Member] \| Softs [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	262,951	272,122
Total unrealized depreciation on open contracts	(92,150)	(147,887)
Forward Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	295,089	835,975
Total unrealized depreciation on open contracts	(523,492)	(618,836)
Net unrealized appreciation (depreciation) on open contracts	(228,403)	217,139
Forward Contracts [Member] \| Currencies [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	217,127	443,534
Total unrealized depreciation on open contracts	(446,485)	(549,780)
Forward Contracts [Member] \| Metals [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	77,962	392,441
Total unrealized depreciation on open contracts	$ (77,007)	$ (69,056)

Trading Activities - Trading Ga

Trading Activities - Trading Gains and Losses by Market Sector on Derivative Instruments Traded (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Derivative [Line Items]
Total trading results	$ 794,665	$ (2,034,273)
Currencies [Member]
Derivative [Line Items]
Total trading results	(533,821)	64,246
Energy [Member]
Derivative [Line Items]
Total trading results	(921,525)	(202,013)
Grains [Member]
Derivative [Line Items]
Total trading results	260,067	(569,489)
Indices [Member]
Derivative [Line Items]
Total trading results	82,617	(1,741,703)
Interest Rates U.S. [Member]
Derivative [Line Items]
Total trading results	169,304	532,804
Interest Rates Non-U.S. [Member]
Derivative [Line Items]
Total trading results	2,525,073	933,235
Livestock [Member]
Derivative [Line Items]
Total trading results	(172,297)	104,528
Metals [Member]
Derivative [Line Items]
Total trading results	(632,712)	(1,266,479)
Softs [Member]
Derivative [Line Items]
Total trading results	$ 17,959	$ 110,598

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail) - DerivativeInstrument	Mar. 31, 2019	Dec. 31, 2018
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative instruments held	0	0

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Assets and Liabilities Measured at Fair Value (Detail) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Assets
Total assets	$ 3,633,060	$ 3,472,614
Liabilities
Total liabilities	1,049,461	1,283,605
Futures Contracts [Member]
Assets
Total assets	3,337,971	2,636,639
Liabilities
Total liabilities	525,969	664,769
Forward Contracts [Member]
Assets
Total assets	295,089	835,975
Liabilities
Total liabilities	523,492	618,836
Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1) [Member]
Assets
Total assets	3,337,971	2,636,639
Liabilities
Total liabilities	525,969	664,769
Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1) [Member] \| Futures Contracts [Member]
Assets
Total assets	3,337,971	2,636,639
Liabilities
Total liabilities	525,969	664,769
Significant Other Observable Inputs (Level 2) [Member]
Assets
Total assets	295,089	835,975
Liabilities
Total liabilities	523,492	618,836
Significant Other Observable Inputs (Level 2) [Member] \| Forward Contracts [Member]
Assets
Total assets	295,089	835,975
Liabilities
Total liabilities	$ 523,492	$ 618,836

Investment in the Funds - Addit

Investment in the Funds - Additional Information (Detail)	3 Months Ended
Investment in the Funds - Additional Information (Detail)	Mar. 31, 2019	Dec. 31, 2018
Cambridge Master Fund L.P. [Member]
Investment [Line Items]
Percentage owned by partnership		100.00%
SECOR Alpha Master Fund L.P. [Member]
Investment [Line Items]
Maximum amount of partnership assets allocated to trading advisor	1.5 times
Percentage owned by partnership	64.30%	84.70%
CMF FORT Contrarian Master Fund LLC [Member]
Investment [Line Items]
Maximum amount of partnership assets allocated to trading advisor	1.25 times
Percentage of investment in trading companies	49.00%
Percentage owned by partnership	12.20%	11.50%
CMF AE Capital Master Fund LLC [Member]
Investment [Line Items]
Percentage owned by partnership	66.30%	79.20%
CMF ADG Master Fund LLC [Member]
Investment [Line Items]
Percentage owned by partnership	63.10%

Investment in the Funds - Asset

Investment in the Funds - Assets, Liabilities and Partners'/Members' Capital of Funds (Detail) - USD ($)	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Investment Holdings [Line Items]
Total Assets	$ 132,337,850	$ 139,345,703
Total Liabilities	3,608,740	5,327,483
Total Capital	128,729,110	134,018,220	$ 168,013,964	$ 91,851,689
Cambridge Master Fund L.P. [Member]
Investment Holdings [Line Items]
Total Assets	12,234,753	21,433,817
Total Liabilities	12,234,753	4,151,814
Total Capital	0	17,282,003
SECOR Alpha Master Fund L.P. [Member]
Investment Holdings [Line Items]
Total Assets	42,956,875	37,347,676
Total Liabilities	645,175	2,170,539
Total Capital	42,311,700	35,177,137
CMF FORT Contrarian Master Fund LLC [Member]
Investment Holdings [Line Items]
Total Assets	172,460,627	180,042,210
Total Liabilities	2,623,913	1,648,773
Total Capital	169,836,714	178,393,437
CMF AE Capital Master Fund LLC [Member]
Investment Holdings [Line Items]
Total Assets	18,810,537	19,758,302
Total Liabilities	111,558	99,954
Total Capital	18,698,979	$ 19,658,348
CMF ADG Master Fund LLC [Member]
Investment Holdings [Line Items]
Total Assets	30,746,424
Total Liabilities	1,075,711
Total Capital	$ 29,670,713

Investment in the Funds - Net I

Investment in the Funds - Net Investment Income (Loss), Trading Results and Net Income (Loss) of Funds (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Investment Holdings [Line Items]
Net Investment Income (Loss)	$ (1,448,500)	$ (2,213,957)
Total Trading Results	3,414,052	1,818,388
Net income (loss)	1,965,552	(395,569)
Cambridge Master Fund L.P. [Member]
Investment Holdings [Line Items]
Net Investment Income (Loss)	71,028	85,288
Total Trading Results	(1,169,131)	2,010,327
Net income (loss)	(1,098,103)	2,095,615
SECOR Alpha Master Fund L.P. [Member]
Investment Holdings [Line Items]
Net Investment Income (Loss)	(47,181)	(50,101)
Total Trading Results	3,326,837	3,566,528
Net income (loss)	3,279,656	3,516,427
CMF FORT Contrarian Master Fund LLC [Member]
Investment Holdings [Line Items]
Net Investment Income (Loss)	803,870	251,234
Total Trading Results	19,700,082	(4,009,717)
Net income (loss)	20,503,952	(3,758,483)
CMF AE Capital Master Fund LLC [Member]
Investment Holdings [Line Items]
Net Investment Income (Loss)	86,493	38,714
Total Trading Results	(895,582)	(155,473)
Net income (loss)	(809,089)	$ (116,759)
CMF ADG Master Fund LLC [Member]
Investment Holdings [Line Items]
Net Investment Income (Loss)	68,144
Total Trading Results	(249,709)
Net income (loss)	$ (181,565)

Investment in the Funds - Partn

Investment in the Funds - Partnership's Investments in, and Partnership's Pro Rata Share of Results of Operations of Funds (Detail) - USD ($)		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Investment Holdings [Line Items]
% of Partner's Capital		61.45%		62.11%
Fair Value	[1]	$ 79,098,097		$ 83,239,963
Income (Loss)		3,414,052	$ 1,818,388
Expenses, Clearing Fees		631,799	829,840
Net income (loss)		$ 1,965,552	(395,569)
Cambridge Master Fund L.P. [Member]
Investment Holdings [Line Items]
% of Partner's Capital		0.00%		12.90%
Fair Value		$ 0		$ 17,284,725
SECOR Alpha Master Fund L.P. [Member]
Investment Holdings [Line Items]
% of Partner's Capital		21.15%		22.27%
Fair Value		$ 27,224,703		$ 29,850,097
CMF FORT Contrarian Master Fund LLC [Member]
Investment Holdings [Line Items]
% of Partner's Capital		16.08%		15.30%
Fair Value		$ 20,697,208		$ 20,501,423
CMF AE Capital Master Fund LLC [Member]
Investment Holdings [Line Items]
% of Partner's Capital		9.65%		11.64%
Fair Value		$ 12,416,566		$ 15,603,718
CMF ADG Master Fund LLC [Member]
Investment Holdings [Line Items]
% of Partner's Capital		14.57%
Fair Value		$ 18,759,620
Investment In Funds [Member]
Investment Holdings [Line Items]
Income (Loss)		3,090,340	4,185,144
Expenses, Clearing Fees		190,171	163,169
Expenses, Professional Fees		45,483	46,774
Net income (loss)		2,854,686	3,975,201
Investment In Funds [Member] \| Cambridge Master Fund L.P. [Member] \| Commodity [Member]
Investment Holdings [Line Items]
Income (Loss)		(1,069,568)	1,992,300
Expenses, Clearing Fees		13,782	20,846
Expenses, Professional Fees		14,753	15,486
Net income (loss)		$ (1,098,103)	$ 1,955,968
Investment Objective		Commodity Portfolio	Commodity Portfolio
Redemptions Permitted		Monthly	Monthly
Investment In Funds [Member] \| SECOR Alpha Master Fund L.P. [Member] \| Commodity [Member]
Investment Holdings [Line Items]
Income (Loss)		$ 2,349,716	$ 3,128,180
Expenses, Clearing Fees		143,150	120,541
Expenses, Professional Fees		10,259	14,653
Net income (loss)		$ 2,196,307	$ 2,992,986
Investment Objective		Commodity Portfolio	Commodity Portfolio
Redemptions Permitted		Monthly	Monthly
Investment In Funds [Member] \| CMF FORT Contrarian Master Fund LLC [Member] \| Commodity [Member]
Investment Holdings [Line Items]
Income (Loss)		$ 2,437,928	$ (859,945)
Expenses, Clearing Fees		13,872	19,261
Expenses, Professional Fees		1,996	7,647
Net income (loss)		$ 2,422,060	$ (886,853)
Investment Objective		Commodity Portfolio	Commodity Portfolio
Redemptions Permitted		Monthly	Monthly
Investment In Funds [Member] \| CMF AE Capital Master Fund LLC [Member] \| Commodity [Member]
Investment Holdings [Line Items]
Income (Loss)		$ (531,229)	$ (75,391)
Expenses, Clearing Fees		11,306	2,521
Expenses, Professional Fees		10,761	8,988
Net income (loss)		$ (553,296)	$ (86,900)
Investment Objective		Commodity Portfolio	Commodity Portfolio
Redemptions Permitted		Monthly	Monthly
Investment In Funds [Member] \| CMF ADG Master Fund LLC [Member] \| Commodity [Member]
Investment Holdings [Line Items]
Income (Loss)		$ (96,507)
Expenses, Clearing Fees		8,061
Expenses, Professional Fees		7,714
Net income (loss)		$ (112,282)
Investment Objective		Commodity Portfolio
Redemptions Permitted		Monthly

[1]	Defined in Note 1.