Ceres Orion (OFFLP) 10-Q 10 May 18 2018 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2018	Apr. 30, 2018
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q1
Trading Symbol	OFFLP
Entity Registrant Name	CERES ORION L.P.
Entity Central Index Key	1,227,265
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Class A Redeemable Units [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		259,004.4438
Class Z Redeemable Units [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		3,799.5122

Statements of Financial Conditi

Statements of Financial Condition - USD ($)		Mar. 31, 2018	Dec. 31, 2017
Assets:
Investment in the Funds(1), at fair value	[1]	$ 647,979,106	$ 656,495,374
Redemptions receivable from the Funds		9,972,754	12,837,759
Equity in trading account:
Unrestricted cash		80,843,251	100,615,185
Restricted cash		20,902,732	42,619,216
Net unrealized appreciation on open contracts		1,105,762	5,877,334
Total equity in trading account		102,851,745	149,111,735
Cash at bank			436
Interest receivable		131,726	139,020
Total assets		760,935,331	818,584,324
Liabilities:
Net unrealized depreciation on open contracts		85,840
Accrued expenses:
Ongoing selling agent fees		2,200,217	2,622,825
Management fees		653,759	699,501
General Partner fees		473,870	509,718
Professional fees		456,938	412,503
Redemptions payable to Limited Partners		15,335,447	15,806,850
Total liabilities		19,206,071	20,051,397
Partners' Capital:
Total partners' capital (net asset value)		741,729,260	798,532,927
Total liabilities and partners' capital		760,935,331	818,584,324
Class Z Redeemable Units [Member]
Partners' Capital:
General Partner, Class Z, 7,429.6743 and 8,552.3863 Redeemable Units outstanding at March 31, 2018 and December 31, 2017, respectively		8,062,142	9,602,692
Limited Partners		3,922,954	3,392,462
Total partners' capital (net asset value)		$ 11,985,096	$ 12,995,154
Net asset value per Redeemable Unit:
Net asset value per Redeemable Unit		$ 1,085.13	$ 1,122.81
Class A Redeemable Units [Member]
Partners' Capital:
Limited Partners		$ 729,744,164	$ 785,537,773
Total partners' capital (net asset value)		$ 729,744,164	$ 785,537,773
Net asset value per Redeemable Unit:
Net asset value per Redeemable Unit		$ 2,775.63	$ 2,887.46
Futures Contracts [Member]
Equity in trading account:
Net unrealized appreciation on open contracts		$ 1,105,762	$ 5,004,060
Forward Contracts [Member]
Equity in trading account:
Net unrealized appreciation on open contracts			$ 873,274
Liabilities:
Net unrealized depreciation on open contracts		$ 85,840
[1]	Defined in Note 1.

Statements of Financial Condit3

Statements of Financial Condition (Parenthetical) - shares	Mar. 31, 2018	Dec. 31, 2017
Class Z Redeemable Units [Member]
General Partner Capital, Redeemable units outstanding	7,429.6743	8,552.3863
Limited Partners Capital, Redeemable units outstanding	3,615.2022	3,021.4072
Class A Redeemable Units [Member]
Limited Partners Capital, Redeemable units outstanding	262,910.9458	272,051.1558

Condensed Schedule of Investmen

Condensed Schedule of Investments		Mar. 31, 2018USD ($)Contract		Dec. 31, 2017USD ($)Contract
Schedule of Investments [Line Items]
Total investment in the Funds, Fair Value	[1]	$ 647,979,106		$ 656,495,374
% of Partners' Capital		87.36%		82.22%
Futures Contracts [Member]
Schedule of Investments [Line Items]
Unrealized Appreciation on Open Contracts		$ 3,147,017		$ 9,793,492
Unrealized Depreciation on Open Contracts		(2,041,255)		(4,789,432)
Net unrealized appreciation (depreciation) on open contracts		$ 1,105,762		$ 5,004,060
% of Partners' Capital		0.15%		0.63%
Forward Contracts [Member]
Schedule of Investments [Line Items]
Unrealized Appreciation on Open Contracts		$ 3,289,467		$ 11,774,122
Unrealized Depreciation on Open Contracts		(3,375,307)		(10,900,848)
Net unrealized appreciation (depreciation) on open contracts		$ (85,840)		$ 873,274
% of Partners' Capital		(0.01%)		0.11%
Total Unrealized Appreciation on Open Contracts [Member] | Forward Contracts [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		0.45%		1.48%
Total Unrealized Depreciation on Open Contracts [Member] | Forward Contracts [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		0.46%		1.37%
CMF Winton Master L.P. [Member]
Schedule of Investments [Line Items]
Total investment in the Funds, Fair Value		$ 157,403,722		$ 186,666,465
% of Partners' Capital		21.22%		23.38%
CMF TT II, LLC [Member]
Schedule of Investments [Line Items]
Total investment in the Funds, Fair Value		$ 164,207,467		$ 201,709,447
% of Partners' Capital		22.14%		25.26%
CMF Willowbridge Master Fund L.P.[Member]
Schedule of Investments [Line Items]
Total investment in the Funds, Fair Value		$ 199,662,268		$ 268,119,462
% of Partners' Capital		26.92%		33.58%
CMF FORT Contrarian Master Fund LLC [Member]
Schedule of Investments [Line Items]
Total investment in the Funds, Fair Value		$ 126,705,649
% of Partners' Capital		17.08%
Energy [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Unrealized Appreciation on Open Contracts		$ 788,505		$ 4,510,786
Unrealized Depreciation on Open Contracts		(21,839)		(787,785)
Grains [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Unrealized Appreciation on Open Contracts		237,848		629,298
Unrealized Depreciation on Open Contracts		(462,184)		(29,437)
Indices [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Unrealized Appreciation on Open Contracts		878,002		2,719,041
Unrealized Depreciation on Open Contracts		(804,754)		(1,479,383)
Interest Rates U.S. [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Unrealized Appreciation on Open Contracts		159,641		71,430
Unrealized Depreciation on Open Contracts		(220,531)		(757,358)
Interest Rates Non-U.S. [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Unrealized Appreciation on Open Contracts		708,680		641,412
Unrealized Depreciation on Open Contracts		(475,462)		(1,322,106)
Livestock [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Unrealized Appreciation on Open Contracts		82,022
Unrealized Depreciation on Open Contracts				(27,290)
Metals [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Unrealized Appreciation on Open Contracts		32,700		666,037
Unrealized Depreciation on Open Contracts		(51,910)		(263,285)
Metals [Member] | Forward Contracts [Member]
Schedule of Investments [Line Items]
Unrealized Appreciation on Open Contracts		1,917,685		3,586,972
Unrealized Depreciation on Open Contracts		$ (1,829,770)		$ (3,570,209)
Metals [Member] | Total Unrealized Appreciation on Open Contracts [Member] | Forward Contracts [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		477		873
% of Partners' Capital		0.27%		0.45%
Metals [Member] | Total Unrealized Depreciation on Open Contracts [Member] | Forward Contracts [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		430		818
% of Partners' Capital		0.25%		0.45%
Softs [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Unrealized Appreciation on Open Contracts		$ 259,619		$ 555,488
Unrealized Depreciation on Open Contracts		(4,575)		(122,788)
Currencies [Member] | Forward Contracts [Member]
Schedule of Investments [Line Items]
Unrealized Appreciation on Open Contracts		1,371,782		8,187,150
Unrealized Appreciation on Opern Forward Contracts, Notional Amount		193,847,958		504,572,117
Unrealized Depreciation on Open Contracts		(1,545,537)		(7,330,639)
Unrealized Depreciation on Opern Forward Contracts, Notional Amount		$ 189,777,118		$ 547,763,469
Currencies [Member] | Total Unrealized Appreciation on Open Contracts [Member] | Forward Contracts [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		0.18%		1.03%
Currencies [Member] | Total Unrealized Depreciation on Open Contracts [Member] | Forward Contracts [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		0.21%		0.92%
Long [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts		$ 1,124,968		$ 3,603,166
% of Partners' Capital		0.16%		0.45%
Long [Member] | Energy [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		507		842
Net unrealized appreciation (depreciation) on open contracts		$ 767,926		$ 3,926,924
% of Partners' Capital		0.10%		0.49%
Long [Member] | Grains [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		274		40
Net unrealized appreciation (depreciation) on open contracts		$ (43,933)		$ (7,380)
% of Partners' Capital	[2]	0.00%		0.00%
Long [Member] | Indices [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		590		2,560
Net unrealized appreciation (depreciation) on open contracts		$ (511,989)		$ 248,920
% of Partners' Capital		(0.07%)		0.03%
Long [Member] | Interest Rates U.S. [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		1,120		2,389
Net unrealized appreciation (depreciation) on open contracts		$ 159,423		$ (673,740)
% of Partners' Capital		0.02%		(0.08%)
Long [Member] | Interest Rates Non-U.S. [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		1,853		2,820
Net unrealized appreciation (depreciation) on open contracts		$ 644,151		$ (1,016,225)
% of Partners' Capital		0.09%		(0.13%)
Long [Member] | Metals [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		21		135
Net unrealized appreciation (depreciation) on open contracts		$ (41,305)		$ 664,797
% of Partners' Capital		0.00%	[2]	0.08%
Long [Member] | Softs [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		99		185
Net unrealized appreciation (depreciation) on open contracts		$ 150,695		$ 459,870
% of Partners' Capital		0.02%		0.06%
Short [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts		$ (19,206)		$ 1,400,894
% of Partners' Capital		(0.01%)		0.18%
Short [Member] | Energy [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		8		659
Net unrealized appreciation (depreciation) on open contracts		$ (1,260)		$ (203,923)
% of Partners' Capital		0.00%	[2]	(0.03%)
Short [Member] | Grains [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		954		1,662
Net unrealized appreciation (depreciation) on open contracts		$ (180,403)		$ 607,241
% of Partners' Capital		(0.02%)		0.08%
Short [Member] | Indices [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		263		1,980
Net unrealized appreciation (depreciation) on open contracts		$ 585,237		$ 990,738
% of Partners' Capital		0.08%		0.12%
Short [Member] | Interest Rates U.S. [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		274		194
Net unrealized appreciation (depreciation) on open contracts		$ (220,313)		$ (12,188)
% of Partners' Capital		(0.03%)		0.00%	[2]
Short [Member] | Interest Rates Non-U.S. [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		2,362		3,696
Net unrealized appreciation (depreciation) on open contracts		$ (410,933)		$ 335,531
% of Partners' Capital		(0.06%)		0.04%
Short [Member] | Livestock [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		54		19
Net unrealized appreciation (depreciation) on open contracts		$ 82,022		$ (27,290)
% of Partners' Capital		0.01%		0.00%	[2]
Short [Member] | Metals [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		18		93
Net unrealized appreciation (depreciation) on open contracts		$ 22,095		$ (262,045)
% of Partners' Capital		0.00%	[2]	(0.03%)
Short [Member] | Softs [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		94		304
Net unrealized appreciation (depreciation) on open contracts		$ 104,349		$ (27,170)
% of Partners' Capital		0.01%		0.00%	[2]
[1]	Defined in Note 1.
[2]	Due to rounding.

Statements of Income and Expens

Statements of Income and Expenses - USD ($)		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Investment Income:
Interest income		$ 412,887	$ 248,919
Interest income allocated from the Funds		2,187,501	919,491
Total investment income		2,600,388	1,168,410
Expenses:
Expenses allocated from the Funds		1,517,541	1,299,406
Clearing fees related to direct investments		120,835	201,954
Ongoing selling agent fees		4,101,475	3,641,514
Management fees		2,023,092	2,458,902
General Partner fees		1,467,907	1,839,851
Professional fees		392,533	462,201
Total expenses		9,623,383	9,903,828
Net investment loss		(7,022,995)	(8,735,418)
Net gains (losses) on trading of commodity interests and investment in the Funds:
Net realized gains (losses) on closed contracts		(3,803,252)	4,942,559
Net realized gains (losses) on closed contracts allocated from the Funds		(9,603,279)	3,240,347
Net change in unrealized gains (losses) on open contracts		(4,650,847)	(1,362,006)
Net change in unrealized gains (losses) on open contracts allocated from the Funds		(5,441,998)	(10,452,614)
Total trading results		(23,499,376)	(3,631,714)
Net income (loss)		(30,522,371)	(12,367,132)
Class A Redeemable Units [Member]
Net gains (losses) on trading of commodity interests and investment in the Funds:
Net income (loss)		$ (30,148,460)	$ (12,240,238)
Net income (loss) per Redeemable Unit	[1]	$ (111.83)	$ (37.40)
Weighted average Redeemable Units outstanding		270,772.7551	326,780.8755
Class Z Redeemable Units [Member]
Net gains (losses) on trading of commodity interests and investment in the Funds:
Net income (loss)		$ (373,911)	$ (126,894)
Net income (loss) per Redeemable Unit	[1]	$ (37.68)	$ (10.04)
Weighted average Redeemable Units outstanding		11,157.2022	12,524.0825
[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	Limited Partners [Member]	General Partner [Member]	Class A Redeemable Units [Member]	Class A Redeemable Units [Member]Limited Partners [Member]	Class Z Redeemable Units [Member]	Class Z Redeemable Units [Member]Limited Partners [Member]	Class Z Redeemable Units [Member]General Partner [Member]
Partners' Capital, beginning of period at Dec. 31, 2016	$ 997,913,751			$ 983,754,958		$ 14,158,793
Subscriptions		$ 12,627,421			$ 12,385,945		$ 241,476
Redemptions		$ (55,878,064)			$ (55,850,937)		$ (27,127)
Net income (loss)	(12,367,132)			(12,240,238)		(126,894)
Partners' Capital, end of period at Mar. 31, 2017	$ 942,295,976			$ 928,049,728		$ 14,246,248
Partners' Capital, beginning of period at Dec. 31, 2016	342,247.1463			329,826.9338		12,420.2125
Subscriptions - Redemptions Units		4,388.2830			4,176.5810		211.7020
Partners' Capital, end of period at Mar. 31, 2017	327,709.8573			315,101.9428		12,607.9145
Redemptions - Redeemable Units		(18,925.5720)			(18,901.5720)		(24)
Partners' Capital, beginning of period at Dec. 31, 2016	$ 997,913,751			$ 983,754,958		$ 14,158,793
Partners' Capital, end of period at Dec. 31, 2017	$ 798,532,927			$ 785,537,773		$ 12,995,154
Partners' Capital, beginning of period at Dec. 31, 2016	342,247.1463			329,826.9338		12,420.2125
Partners' Capital, end of period at Dec. 31, 2017	283,624.9493			272,051.1558		11,573.7935
Subscriptions		$ 11,082,208			$ 10,407,208		$ 675,000
Redemptions		$ (36,063,493)	$ (1,300,011)		$ (36,052,357)		$ (11,136)	$ (1,300,011)
Net income (loss)	$ (30,522,371)			$ (30,148,460)		$ (373,911)
Partners' Capital, end of period at Mar. 31, 2018	$ 741,729,260			$ 729,744,164		$ 11,985,096
Subscriptions - Redemptions Units		4,245.2170			3,641.1040		604.1130
Partners' Capital, end of period at Mar. 31, 2018	273,955.8223			262,910.9458		11,044.8765
Redemptions - Redeemable Units		(12,791.6320)	(1,122.7120)		(12,781.3140)		(10.3180)	(1,122.7120)

Organization

Organization	3 Months Ended
	Mar. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	1. Organization: Ceres Orion L.P. (formerly, Orion Futures Fund L.P.) (the “Partnership”) is a limited partnership organized on March 22, 1999, under the partnership laws of the State of New York, 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, livestock, indices, U.S. and non-U.S. 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 Transtrend Master (as defined below) and FORT Contrarian 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. As of March 31, 2018, all trading decisions are made for the Partnership by Winton Capital Management Limited (“Winton”), Transtrend B.V. (“Transtrend”), Willowbridge Associates Inc. (“Willowbridge”), FORT L.P. (“FORT”) and Systematica Investments Limited (“Systematica”) (each an “Advisor” and, collectively, the “Advisors”), each of which is a registered commodity trading advisor. Each Advisor is allocated a portion of the Partnership’s assets to manage. The Partnership invests the portion of its assets allocated to each of the Advisors either directly, through an individually managed account, or indirectly, through its investment in the Funds. In addition, the General Partner may allocate the Partnership’s assets to additional non-major On June 1, 2011, the Partnership began offering “Class A” Redeemable Units and “Class Z” Redeemable Units pursuant to the offering memorandum. All Redeemable Units issued prior to June 1, 2011 were deemed Class A Redeemable Units. The rights, powers, duties and obligations 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. During the reporting periods ended March 31, 2018 and 2017, 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 counterparty for certain Funds. During the reporting period and prior periods included in this report, the Partnership/Funds also deposited a portion of their cash in non-trading Effective February 28, 2018, the Partnership changed its name from Orion Futures Fund L.P. to Ceres Orion L.P. Systematica directly trades the Partnership’s assets allocated to it through a managed account in the name of the Partnership pursuant to Systematica’s BlueTrend Program. The Partnership, CMF Winton Master L.P. (“Winton Master”), CMF TT II, LLC (formerly, Morgan Stanley Smith Barney TT II, LLC) (“Transtrend Master”) and CMF Willowbridge Master Fund L.P. (“Willowbridge Master”) have entered into futures brokerage account agreements and foreign exchange brokerage account agreements with MS&Co. CMF FORT Contrarian Master Fund LLC (“FORT Contrarian Master”) has entered into a futures brokerage account agreement with MS&Co. Winton Master, Transtrend Master, Willowbridge Master and FORT Contrarian Master are collectively referred to as the “Funds.” Effective July 12, 2017, Winton Master, Transtrend Master and Willowbridge 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 include 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. In addition to Willowbridge Master, Willowbridge is party to the FX Agreement for Willowbridge Master. 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 futures brokerage account agreement with MS&Co. (the “Partnership Customer Agreement”) and ceased paying brokerage commissions to MS&Co. Under the Partnership Customer Agreement, the Partnership pays MS&Co. (or will reimburse MS&Co. if previously paid) its allocable share of trading fees for the clearing and, where applicable, the execution of transactions, as well as its allocable share of exchange, clearing, user, give-up 4-week 4-week The Partnership has entered into a selling agent agreement with Morgan Stanley Wealth Management (as amended, the “Selling Agreement”). Pursuant to the Selling Agreement, the Partnership pays Morgan Stanley Wealth Management a monthly ongoing selling agent fee. The ongoing selling agent fee is $15.00 each for futures transactions and up to an equivalent amount for swaps and $7.50 each per side for options transactions, with respect to Class A Redeemable Units. Class Z Redeemable Units are not subject to an ongoing selling agent fee. The ongoing selling agent fee amount is reduced by applicable floor brokerage fees. The Partnership may pay an ongoing selling agent fee to other properly licensed and/or registered selling agents who sell Redeemable Units, and such additional selling agents may share all or a substantial portion of such fees with their properly registered or exempted financial advisors who have sold Redeemable Units. As of January 19, 2018, the Partnership entered into an alternative investment placement agent agreement (the “Harbor Selling Agreement”), by and among the Partnership, the General Partner, and Harbor Investment Advisory, LLC, a Maryland limited liability company (“Harbor”). Pursuant to the Harbor Selling Agreement, Harbor has been appointed as a non-exclusive 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, 2018
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, 2018, and the results of its operations and changes in partners’ capital for the three months ended March 31, 2018 and 2017. These financial statements present the results of 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 10-K”) 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. Profit Allocation. Statement of Cash Flows. “Statement of Cash Flows.” Partnership’s Investment in the Funds Partnership’s/Funds’ Derivative Investments. first-in, first-out 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 due to 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. Income Taxes “Income Taxes,” “more-likely-than-not” more-likely-than-not Investment Company Status. 2013-08 “Financial Services—Investment Companies (Topic 946): Amendments to the Scope, Measurement and Disclosure Requirements” Net Income (Loss) Per Redeemable Unit. “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

Financial Highlights

Financial Highlights	3 Months Ended
	Mar. 31, 2018
Text Block [Abstract]
Financial Highlights	3. Financial Highlights: Financial highlights for the limited partner Classes as a whole for the three months ended March 31, 2018 and 2017 were as follows: Three Months Ended March 31, 2018 Three Months Ended March 31, 2017 Class A Class Z Class A Class Z Per Redeemable Unit Performance (for a unit outstanding throughout the period):* Net realized and unrealized gains (losses) $ (86.07 ) $ (33.27 ) $ (10.89 ) $ (4.19 ) Net investment loss (25.76 ) (4.41 ) (26.51 ) (5.85 ) Increase (decrease) for the period (111.83 ) (37.68 ) (37.40 ) (10.04 ) Net asset value per Redeemable Unit, beginning of period 2,887.46 1,122.81 2,982.64 1,139.98 Net asset value per Redeemable Unit, end of period $ 2,775.63 $ 1,085.13 $ 2,945.24 $ 1,129.94 Three Months Ended March 31, 2018 Three Months Ended March 31, 2017 Class A Class Z Class A Class Z Ratios to Average Limited Partners’ Capital:** Net investment loss*** (3.7 )% (1.7 )% (3.7 )% (2.1 )% Operating expenses 5.0 % 3.0 % 4.2 % 2.6 % Incentive fees (0.0 )%**** (0.0 )%**** (0.0 )%**** (0.0 )%**** Total expenses 5.0 % 3.0 % 4.2 % 2.6 % Total return: Total return before incentive fees (3.9 )% (3.4 )% (1.3 )% (0.9 )% Incentive fees (0.0 )%**** (0.0 )%**** (0.0 )%**** (0.0 )%**** Total return after incentive fees (3.9 )% (3.4 )% (1.3 )% (0.9 )% * 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 Classes 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
	Mar. 31, 2018
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 Customer Agreement 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 and 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 and 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, 2018 and 2017 were 12,333 and 20,954, respectively. The monthly average number of metals forward contracts traded directly by the Partnership during the three months ended March 31, 2018 and 2017 were 1,392 and 2,297, respectively. The monthly average notional value of currency forward contracts traded directly by the Partnership during the three months ended March 31, 2018 and 2017 were $495,821,858 and $1,629,926,653, respectively. Ongoing selling agent fees and trading and transaction fees are based on the number of trades executed by the Advisors and the Partnership’s percentage ownership of each respective Fund. All clearing fees paid to MS&Co. are borne by the Partnership for its direct trading. In addition, clearing fees are borne by the Funds and are allocated to the limited partners/members, including the Partnership. 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 or similar arrangements as of March 31, 2018 and December 31, 2017, respectively. Gross Amounts Offset in the Amounts Presented in the Gross Amounts Not Offset in the Statements of Financial Condition March 31, 2018 Gross Amounts Recognized Statements of Financial Condition Statements of Financial Condition Financial Instruments Cash Collateral Received/ Pledged* Net Amount Assets Futures $ 3,147,017 $ (2,041,255 ) $ 1,105,762 $ - $ - $ 1,105,762 Forwards 3,289,467 (3,289,467 ) - - - - Total assets $ 6,436,484 $ (5,330,722 ) $ 1,105,762 $ - $ - $ 1,105,762 Liabilities Futures $ (2,041,255 ) $ 2,041,255 $ - $ - $ - $ - Forwards (3,375,307 ) 3,289,467 (85,840 ) - - (85,840 ) Total liabilities $ (5,416,562 ) $ 5,330,722 $ (85,840 ) $ - $ - $ (85,840 ) Net fair value $ 1,019,922 * Gross Amounts Offset in the Amounts Presented in the Gross Amounts Not Offset in the Statements of Financial Condition December 31, 2017 Gross Amounts Recognized Statements of Financial Condition Statements of Financial Condition Financial Instruments Cash Collateral Received/ Pledged* Net Amount Assets Futures $ 9,793,492 $ (4,789,432 ) $ 5,004,060 $ - $ - $ 5,004,060 Forwards 11,774,122 (10,900,848 ) 873,274 - - 873,274 Total assets $ 21,567,614 $ (15,690,280 ) $ 5,877,334 $ - $ - $ 5,877,334 Liabilities Futures $ (4,789,432 ) $ 4,789,432 $ - $ - $ - $ - Forwards (10,900,848 ) 10,900,848 - - - - Total liabilities $ (15,690,280 ) $ 15,690,280 $ - $ - $ - $ - Net fair value $ 5,877,334 * * In the event of default by the Partnership, MS&Co., the Partnership’s commodity futures brokers 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, 2018 and December 31, 2017, respectively. March 31, 2018 Assets Futures Contracts Energy $ 788,505 Grains 237,848 Indices 878,002 Interest Rates U.S. 159,641 Interest Rates Non-U.S. 708,680 Livestock 82,022 Metals 32,700 Softs 259,619 Total unrealized appreciation on open futures contracts 3,147,017 Liabilities Futures Contracts Energy (21,839 ) Grains (462,184 ) Indices (804,754 ) Interest Rates U.S. (220,531 ) Interest Rates Non-U.S. (475,462 ) Metals (51,910 ) Softs (4,575 ) Total unrealized depreciation on open futures contracts (2,041,255 ) Net unrealized appreciation on open futures contracts $ 1,105,762 * Assets Forward Contracts Currencies $ 1,371,782 Metals 1,917,685 Total unrealized appreciation on open forward contracts 3,289,467 Liabilities Forward Contracts Currencies (1,545,537 ) Metals (1,829,770 ) Total unrealized depreciation on open forward contracts (3,375,307 ) Net unrealized depreciation on open forward contracts $ (85,840 )** * 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, 2017 Assets Futures Contracts Energy $ 4,510,786 Grains 629,298 Indices 2,719,041 Interest Rates U.S. 71,430 Interest Rates Non-U.S. 641,412 Metals 666,037 Softs 555,488 Total unrealized appreciation on open futures contracts 9,793,492 Liabilities Futures Contracts Energy (787,785 ) Grains (29,437 ) Indices (1,479,383 ) Interest Rates U.S. (757,358 ) Interest Rates Non-U.S. (1,322,106 ) Livestock (27,290 ) Metals (263,285 ) Softs (122,788 ) Total unrealized depreciation on open futures contracts (4,789,432 ) Net unrealized appreciation on open futures contracts $ 5,004,060 * Assets Forward Contracts Currencies $ 8,187,150 Metals 3,586,972 Total unrealized appreciation on open forward contracts 11,774,122 Liabilities Forward Contracts Currencies (7,330,639 ) Metals (3,570,209 ) Total unrealized depreciation on open forward contracts (10,900,848 ) Net unrealized appreciation on open forward contracts $ 873,274 ** * 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, 2018 and 2017, respectively. Three Months Ended March 31, Sector 2018 2017 Currencies $ (1,391,084 ) $ (669,763 ) Energy 616,712 (3,275,657 ) Grains (2,292,174 ) (1,810,506 ) Indices (4,052,494 ) 12,822,835 Interest Rates U.S. (1,936,095 ) 501,573 Interest Rates Non-U.S. 1,049,483 (2,891,280 ) Livestock (35,210 ) (67,230 ) Metals (634,887 ) (1,380,688 ) Softs 221,650 351,269 Total $ (8,454,099 )*** $ 3,580,553 *** *** This amount is included in “Total trading results” in the Statements of Income and Expenses.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2018
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, 2018 Total Level 1 Level 2 Level 3 Assets Futures $ 3,147,017 $ 3,147,017 $ - $ - Forwards 3,289,467 - 3,289,467 - Total assets $ 6,436,484 $ 3,147,017 $ 3,289,467 $ - Liabilities Futures $ 2,041,255 $ 2,041,255 $ - $ - Forwards 3,375,307 - 3,375,307 - Total liabilities $ 5,416,562 $ 2,041,255 $ 3,375,307 $ - December 31, 2017* Total Level 1 Level 2 Level 3 Assets Futures $ 9,793,492 $ 9,793,492 $ - $ - Forwards 11,774,122 - 11,774,122 - Total assets $ 21,567,614 $ 9,793,492 $ 11,774,122 $ - Liabilities Futures $ 4,789,432 $ 4,789,432 $ - $ - Forwards 10,900,848 - 10,900,848 - Total liabilities $ 15,690,280 $ 4,789,432 $ 10,900,848 $ - * $3,292,660 of assets and $3,786,690 of liabilities were transferred from Level 1 to Level 2 during the year ended December 31, 2017. The General Partner believes that for London Metal Exchange (“LME”) contracts, the inputs are derived from an exchange and not actively quoted prices, which is more representative of a Level 2 security.

Investment in the Funds

Investment in the Funds	3 Months Ended
	Mar. 31, 2018
Schedule of Investments [Abstract]
Investment in the Funds	6. Investment in the Funds: On November 1, 2004, the assets allocated to Winton for trading were invested in Winton Master, a limited partnership organized under the partnership laws of the State of New York. Winton Master permits accounts managed by Winton using the Winton Futures Program, a proprietary, systematic trading system, to invest together in one trading vehicle. The General Partner is also the general partner of Winton Master. Individual and pooled accounts currently managed by Winton, including the Partnership, are permitted to be limited partners of Winton Master. The General Partner and Winton believe that trading through this structure promotes efficiency and economy in the trading process. The General Partner and Winton have agreed that Winton will trade the Partnership’s assets allocated to Winton at a level that is up to 1.5 times the amount of assets allocated. On June 1, 2011, the Partnership allocated a portion of its assets to Transtrend Master, a limited liability company organized under the limited liability company laws of the State of Delaware. Transtrend Master permits accounts managed by Transtrend using the Diversified Trend Program-Enhanced Risk Profile (US Dollar), a proprietary, systematic trading system, to invest together in one trading vehicle. Individual and pooled accounts managed by Transtrend, including the Partnership, are permitted to be non-managing On August 1, 2014, the assets allocated to Willowbridge for trading were invested in Willowbridge Master, a limited partnership organized under the partnership laws of the State of New York. Willowbridge Master permits accounts managed by Willowbridge using its wPraxis Futures Trading Approach, a proprietary, discretionary trading system, to invest together in one trading vehicle. The General Partner is also the general partner of Willowbridge Master. Individual and pooled accounts currently managed by Willowbridge, including the Partnership, are permitted to be limited partners of Willowbridge Master. The General Partner and Willowbridge believe that trading through this structure promotes efficiency and economy in the trading process. The General Partner and Willowbridge have agreed that Willowbridge will trade the Partnership’s assets at a level that is up to three times the amount of the assets allocated. On February 1, 2018, 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, including the Partnership, are permitted to be members of FORT Contrarian Master. The Trading Manager and FORT believe that trading through this 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 amount of the assets allocated. The General Partner is not aware of any material changes to any of the trading programs discussed above during the fiscal quarter ended March 31, 2018. The Funds’ and the Partnership’s trading of futures, forward, swap, and option contracts, if applicable, on commodities is done primarily on U.S. and foreign commodity exchanges. The Funds and the Partnership 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, for all Funds other than Winton Master, 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, ongoing selling agent fees, General Partner fees and incentive fees are charged at the Partnership level, except for management and incentive fees payable to Transtrend which are charged at the Transtrend Master level. Clearing fees are borne by the Funds and allocated to the Funds’ limited partners/non-managing At March 31, 2018, the Partnership owned approximately 44.0% of Winton Master, 100.0% of Transtrend Master, 87.6% of Willowbridge Master and 82.8% of FORT Contrarian Master. Prior to the close of business on December 31, 2017, the Partnership owned approximately 45.8% of Winton Master, 95.8% of Transtrend Master and 82.5% of Willowbridge 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 redemption rights are not affected. Summarized information reflecting the total assets, liabilities and partners’ capital/members’ capital of the Funds is shown in the following tables: March 31, 2018 Total Assets Total Liabilities Total Capital Winton Master $ 363,232,792 $ 6,269,415 $ 356,963,377 Transtrend Master 172,488,409 8,280,942 164,207,467 Willowbridge Master 232,751,446 5,044,955 227,706,491 FORT Contrarian Master 153,357,449 554,239 152,803,210 December 31, 2017 Total Assets Total Liabilities Total Capital Winton Master $ 408,725,040 $ 11,076,733 $ 397,648,307 Transtrend Master 217,045,353 15,335,906 201,709,447 Willowbridge Master 336,101,673 39,096,772 297,004,901 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, 2018 Net Investment Income (Loss) Total Trading Results Net Income (Loss) Winton Master $ 1,096,751 $ (11,736,511 ) $ (10,639,760 ) Transtrend Master (149,393 ) (13,329,963 ) (13,479,356 ) Willowbridge Master 131,915 5,989,417 6,121,332 FORT Contrarian Master (a) 243,808 (3,736,271 ) (3,492,463 ) For the three months ended March 31, 2017 Net Investment Income (Loss) Total Trading Results Net Income (Loss) Winton Master $ 390,987 $ 7,430,968 $ 7,821,955 Transtrend Master (809,650 ) (5,798,084 ) (6,607,734 ) Willowbridge Master 196,912 (6,637,913 ) (6,441,001 ) (a) From February 1, 2018, the date the Partnership invested into FORT Contrarian Master, through March 31, 2018. Summarized information reflecting the Partnership’s investments in and the Partnership’s pro-rata March 31, 2018 For the three months ended March 31, 2018 % of Expenses Net Funds Partners’ Capital Fair Value Income (Loss) Clearing Fees Professional Fees Management Fees Incentive Fee Income (Loss) Investment Objective Redemptions Permitted Winton Master 21.22 % $ 157,403,722 $ (3,556,924 ) $ 58,878 $ 7,679 $ - $ - $ (3,623,481 ) Commodity Portfolio Monthly Transtrend Master 22.14 % 164,207,467 (12,768,078 ) 260,797 194 403,247 47,039 (13,479,355 ) Commodity Portfolio Monthly Willowbridge Master 26.92 % 199,662,268 6,248,699 638,607 16,278 - - 5,593,814 Commodity Portfolio Monthly FORT Contrarian Master (a) 17.08 % 126,705,649 (2,781,473 ) 75,469 9,353 - - (2,866,295 ) Commodity Portfolio Monthly Total $ 647,979,106 $ (12,857,776) $ 1,033,751 $ 33,504 $ 403,247 $ 47,039 $ (14,375,317) December 31, 2017 For the three months ended March 31, 2017 % of Expenses Net Funds Partners’ Capital Fair Value Income (Loss) Clearing Fees Professional Fees Management Fees Incentive Fee Income (Loss) Investment Objective Redemptions Permitted Winton Master 23.38 % $ 186,666,465 $ 3,733,396 $ 69,235 $ 7,586 $ - $ - $ 3,656,575 Commodity Portfolio Monthly Transtrend Master 25.26 % 201,709,447 (5,231,790 ) 429,787 185 560,025 25,157 (6,246,944 ) Commodity Portfolio Monthly Willowbridge Master 33.58 % 268,119,462 (4,794,382 ) 194,044 13,387 - - (5,001,813 ) Commodity Portfolio Monthly Total $ 656,495,374 $ (6,292,776 ) $ 693,066 $ 21,158 $ 560,025 $ 25,157 $ (7,592,182 ) (a) From February 1, 2018, the date the Partnership invested into FORT Contrarian Master, through March 31, 2018.

Financial Instrument Risks

Financial Instrument Risks	3 Months Ended
	Mar. 31, 2018
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 over-the-counter Futures Contracts Forward Foreign Currency Contracts. London Metals Exchange Forward Contracts. Options marked-to-market marked-to-market 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. Futures-Style Options. 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 a counterparty default is typically limited to the amounts recognized in the Partnership’s/Funds’ 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 and the 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, exchange-cleared swaps, 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
	Mar. 31, 2018
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 disclosed below, there were no subsequent events requiring adjustment to or disclosure in the financial statements. Effective April 1, 2018, the monthly management fee Willowbridge receives was reduced to 1.25% per year of month-end

Basis of Presentation and Sum15

Basis of Presentation and Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
Use of Estimates	Use of Estimates.
Profit Allocation	Profit Allocation.
Statement of Cash Flows	Statement of Cash Flows. “Statement of Cash Flows.”
Partnership's Investment in the Funds	Partnership’s Investment in the Funds
Partnership's/Funds' Derivative Investments	Partnership’s/Funds’ Derivative Investments. first-in, first-out 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 due to 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.
Income Taxes	Income Taxes “Income Taxes,” “more-likely-than-not” more-likely-than-not
Investment Company Status	Investment Company Status. 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. “Financial Services - Investment Companies.”
Partnership's and the Funds' 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

Financial Highlights (Tables)

Financial Highlights (Tables)	3 Months Ended
	Mar. 31, 2018
Text Block [Abstract]
Financial Highlights	Financial highlights for the limited partner Classes as a whole for the three months ended March 31, 2018 and 2017 were as follows: Three Months Ended March 31, 2018 Three Months Ended March 31, 2017 Class A Class Z Class A Class Z Per Redeemable Unit Performance (for a unit outstanding throughout the period):* Net realized and unrealized gains (losses) $ (86.07 ) $ (33.27 ) $ (10.89 ) $ (4.19 ) Net investment loss (25.76 ) (4.41 ) (26.51 ) (5.85 ) Increase (decrease) for the period (111.83 ) (37.68 ) (37.40 ) (10.04 ) Net asset value per Redeemable Unit, beginning of period 2,887.46 1,122.81 2,982.64 1,139.98 Net asset value per Redeemable Unit, end of period $ 2,775.63 $ 1,085.13 $ 2,945.24 $ 1,129.94 Three Months Ended March 31, 2018 Three Months Ended March 31, 2017 Class A Class Z Class A Class Z Ratios to Average Limited Partners’ Capital:** Net investment loss*** (3.7 )% (1.7 )% (3.7 )% (2.1 )% Operating expenses 5.0 % 3.0 % 4.2 % 2.6 % Incentive fees (0.0 )%**** (0.0 )%**** (0.0 )%**** (0.0 )%**** Total expenses 5.0 % 3.0 % 4.2 % 2.6 % Total return: Total return before incentive fees (3.9 )% (3.4 )% (1.3 )% (0.9 )% Incentive fees (0.0 )%**** (0.0 )%**** (0.0 )%**** (0.0 )%**** Total return after incentive fees (3.9 )% (3.4 )% (1.3 )% (0.9 )% * 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
	Mar. 31, 2018
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 or similar arrangements as of March 31, 2018 and December 31, 2017, respectively. Gross Amounts Offset in the Amounts Presented in the Gross Amounts Not Offset in the Statements of Financial Condition March 31, 2018 Gross Amounts Recognized Statements of Financial Condition Statements of Financial Condition Financial Instruments Cash Collateral Received/ Pledged* Net Amount Assets Futures $ 3,147,017 $ (2,041,255 ) $ 1,105,762 $ - $ - $ 1,105,762 Forwards 3,289,467 (3,289,467 ) - - - - Total assets $ 6,436,484 $ (5,330,722 ) $ 1,105,762 $ - $ - $ 1,105,762 Liabilities Futures $ (2,041,255 ) $ 2,041,255 $ - $ - $ - $ - Forwards (3,375,307 ) 3,289,467 (85,840 ) - - (85,840 ) Total liabilities $ (5,416,562 ) $ 5,330,722 $ (85,840 ) $ - $ - $ (85,840 ) Net fair value $ 1,019,922 * Gross Amounts Offset in the Amounts Presented in the Gross Amounts Not Offset in the Statements of Financial Condition December 31, 2017 Gross Amounts Recognized Statements of Financial Condition Statements of Financial Condition Financial Instruments Cash Collateral Received/ Pledged* Net Amount Assets Futures $ 9,793,492 $ (4,789,432 ) $ 5,004,060 $ - $ - $ 5,004,060 Forwards 11,774,122 (10,900,848 ) 873,274 - - 873,274 Total assets $ 21,567,614 $ (15,690,280 ) $ 5,877,334 $ - $ - $ 5,877,334 Liabilities Futures $ (4,789,432 ) $ 4,789,432 $ - $ - $ - $ - Forwards (10,900,848 ) 10,900,848 - - - - Total liabilities $ (15,690,280 ) $ 15,690,280 $ - $ - $ - $ - Net fair value $ 5,877,334 * * In the event of default by the Partnership, MS&Co., the Partnership’s commodity futures brokers 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, 2018 and December 31, 2017, respectively. March 31, 2018 Assets Futures Contracts Energy $ 788,505 Grains 237,848 Indices 878,002 Interest Rates U.S. 159,641 Interest Rates Non-U.S. 708,680 Livestock 82,022 Metals 32,700 Softs 259,619 Total unrealized appreciation on open futures contracts 3,147,017 Liabilities Futures Contracts Energy (21,839 ) Grains (462,184 ) Indices (804,754 ) Interest Rates U.S. (220,531 ) Interest Rates Non-U.S. (475,462 ) Metals (51,910 ) Softs (4,575 ) Total unrealized depreciation on open futures contracts (2,041,255 ) Net unrealized appreciation on open futures contracts $ 1,105,762 * Assets Forward Contracts Currencies $ 1,371,782 Metals 1,917,685 Total unrealized appreciation on open forward contracts 3,289,467 Liabilities Forward Contracts Currencies (1,545,537 ) Metals (1,829,770 ) Total unrealized depreciation on open forward contracts (3,375,307 ) Net unrealized depreciation on open forward contracts $ (85,840 )** * 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, 2017 Assets Futures Contracts Energy $ 4,510,786 Grains 629,298 Indices 2,719,041 Interest Rates U.S. 71,430 Interest Rates Non-U.S. 641,412 Metals 666,037 Softs 555,488 Total unrealized appreciation on open futures contracts 9,793,492 Liabilities Futures Contracts Energy (787,785 ) Grains (29,437 ) Indices (1,479,383 ) Interest Rates U.S. (757,358 ) Interest Rates Non-U.S. (1,322,106 ) Livestock (27,290 ) Metals (263,285 ) Softs (122,788 ) Total unrealized depreciation on open futures contracts (4,789,432 ) Net unrealized appreciation on open futures contracts $ 5,004,060 * Assets Forward Contracts Currencies $ 8,187,150 Metals 3,586,972 Total unrealized appreciation on open forward contracts 11,774,122 Liabilities Forward Contracts Currencies (7,330,639 ) Metals (3,570,209 ) Total unrealized depreciation on open forward contracts (10,900,848 ) Net unrealized appreciation on open forward contracts $ 873,274 ** * 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, 2018 and 2017, respectively. Three Months Ended March 31, Sector 2018 2017 Currencies $ (1,391,084 ) $ (669,763 ) Energy 616,712 (3,275,657 ) Grains (2,292,174 ) (1,810,506 ) Indices (4,052,494 ) 12,822,835 Interest Rates U.S. (1,936,095 ) 501,573 Interest Rates Non-U.S. 1,049,483 (2,891,280 ) Livestock (35,210 ) (67,230 ) Metals (634,887 ) (1,380,688 ) Softs 221,650 351,269 Total $ (8,454,099 )*** $ 3,580,553 *** *** 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
	Mar. 31, 2018
Fair Value Disclosures [Abstract]
Summary of Assets and Liabilities Measured at Fair Value	March 31, 2018 Total Level 1 Level 2 Level 3 Assets Futures $ 3,147,017 $ 3,147,017 $ - $ - Forwards 3,289,467 - 3,289,467 - Total assets $ 6,436,484 $ 3,147,017 $ 3,289,467 $ - Liabilities Futures $ 2,041,255 $ 2,041,255 $ - $ - Forwards 3,375,307 - 3,375,307 - Total liabilities $ 5,416,562 $ 2,041,255 $ 3,375,307 $ - December 31, 2017* Total Level 1 Level 2 Level 3 Assets Futures $ 9,793,492 $ 9,793,492 $ - $ - Forwards 11,774,122 - 11,774,122 - Total assets $ 21,567,614 $ 9,793,492 $ 11,774,122 $ - Liabilities Futures $ 4,789,432 $ 4,789,432 $ - $ - Forwards 10,900,848 - 10,900,848 - Total liabilities $ 15,690,280 $ 4,789,432 $ 10,900,848 $ - * $3,292,660 of assets and $3,786,690 of liabilities were transferred from Level 1 to Level 2 during the year ended December 31, 2017. The General Partner believes that for London Metal Exchange (“LME”) contracts, the inputs are derived from an exchange and not actively quoted prices, which is more representative of a Level 2 security.

Investment in the Funds (Tables

Investment in the Funds (Tables)	3 Months Ended
	Mar. 31, 2018
Schedule of Investments [Abstract]
Assets, Liabilities and Partners'/Members' Capital of Funds	Summarized information reflecting the total assets, liabilities and partners’ capital/members’ capital of the Funds is shown in the following tables: March 31, 2018 Total Assets Total Liabilities Total Capital Winton Master $ 363,232,792 $ 6,269,415 $ 356,963,377 Transtrend Master 172,488,409 8,280,942 164,207,467 Willowbridge Master 232,751,446 5,044,955 227,706,491 FORT Contrarian Master 153,357,449 554,239 152,803,210 December 31, 2017 Total Assets Total Liabilities Total Capital Winton Master $ 408,725,040 $ 11,076,733 $ 397,648,307 Transtrend Master 217,045,353 15,335,906 201,709,447 Willowbridge Master 336,101,673 39,096,772 297,004,901
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, 2018 Net Investment Income (Loss) Total Trading Results Net Income (Loss) Winton Master $ 1,096,751 $ (11,736,511 ) $ (10,639,760 ) Transtrend Master (149,393 ) (13,329,963 ) (13,479,356 ) Willowbridge Master 131,915 5,989,417 6,121,332 FORT Contrarian Master (a) 243,808 (3,736,271 ) (3,492,463 ) For the three months ended March 31, 2017 Net Investment Income (Loss) Total Trading Results Net Income (Loss) Winton Master $ 390,987 $ 7,430,968 $ 7,821,955 Transtrend Master (809,650 ) (5,798,084 ) (6,607,734 ) Willowbridge Master 196,912 (6,637,913 ) (6,441,001 ) (a) From February 1, 2018, the date the Partnership invested into FORT Contrarian 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 investments in and the Partnership’s pro-rata March 31, 2018 For the three months ended March 31, 2018 % of Expenses Net Funds Partners’ Capital Fair Value Income (Loss) Clearing Fees Professional Fees Management Fees Incentive Fee Income (Loss) Investment Objective Redemptions Permitted Winton Master 21.22 % $ 157,403,722 $ (3,556,924 ) $ 58,878 $ 7,679 $ - $ - $ (3,623,481 ) Commodity Portfolio Monthly Transtrend Master 22.14 % 164,207,467 (12,768,078 ) 260,797 194 403,247 47,039 (13,479,355 ) Commodity Portfolio Monthly Willowbridge Master 26.92 % 199,662,268 6,248,699 638,607 16,278 - - 5,593,814 Commodity Portfolio Monthly FORT Contrarian Master (a) 17.08 % 126,705,649 (2,781,473 ) 75,469 9,353 - - (2,866,295 ) Commodity Portfolio Monthly Total $ 647,979,106 $ (12,857,776) $ 1,033,751 $ 33,504 $ 403,247 $ 47,039 $ (14,375,317) December 31, 2017 For the three months ended March 31, 2017 % of Expenses Net Funds Partners’ Capital Fair Value Income (Loss) Clearing Fees Professional Fees Management Fees Incentive Fee Income (Loss) Investment Objective Redemptions Permitted Winton Master 23.38 % $ 186,666,465 $ 3,733,396 $ 69,235 $ 7,586 $ - $ - $ 3,656,575 Commodity Portfolio Monthly Transtrend Master 25.26 % 201,709,447 (5,231,790 ) 429,787 185 560,025 25,157 (6,246,944 ) Commodity Portfolio Monthly Willowbridge Master 33.58 % 268,119,462 (4,794,382 ) 194,044 13,387 - - (5,001,813 ) Commodity Portfolio Monthly Total $ 656,495,374 $ (6,292,776 ) $ 693,066 $ 21,158 $ 560,025 $ 25,157 $ (7,592,182 ) (a) From February 1, 2018, the date the Partnership invested into FORT Contrarian Master, through March 31, 2018.

Organization - Additional Infor

Organization - Additional Information (Detail)	Jan. 19, 2018$ / Round_Turn_Trade$ / Half_Turn_Trade	Mar. 31, 2018$ / Round_Turn_Trade$ / Half_Turn_Tradeshares
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Maximum number of Redeemable Units sold by the Partnership | shares		0
MS&Co [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Percentage of allocable share		100.00%
U.S. Treasury bill maturity period		28 days
MS&Co [Member] | CMF TT II, LLC [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Percentage of allocable share		100.00%
U.S. Treasury bill maturity period		28 days
U.S. Treasury bill discount rate		0.15%
Effective interest rate description		When the effective rate is less than zero, no interest is earned.
Morgan Stanley Wealth Management [Member] | Class A Redeemable Units [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Brokerage commission payable per round-turn | $ / Round_Turn_Trade		15
Brokerage commission payable per half turn | $ / Half_Turn_Trade		7.50
Harbor Investment Advisory, LLC [Member] | Class A Redeemable Units [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Brokerage commission payable per round-turn | $ / Round_Turn_Trade	15
Brokerage commission payable per half turn | $ / Half_Turn_Trade	7.50
Maximum [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Percentage of partnership assets allocated		10.00%

Basis of Presentation and Sum21

Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Accounting Policies [Line Items]
Cash denominated in foreign currencies	$ (4,781,832)	$ (4,275,539)
Cash denominated in foreign currencies, proceeds	4,897,708	4,184,850
Restricted cash	20,902,732	$ 42,619,216
Uncertain tax position	$ 0
Earliest Tax Year [Member]
Accounting Policies [Line Items]
Open tax year	2,014
Latest Tax Year [Member]
Accounting Policies [Line Items]
Open tax year	2,017

Financial Highlights - Schedule

Financial Highlights - Schedule of Changes in Net Asset Value (Detail) - $ / shares	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Class A Redeemable Units [Member]
Per Redeemable Unit Performance (for a unit outstanding throughout the period):
Net realized and unrealized gains (losses)	$ (86.07)	$ (10.89)
Net investment loss	(25.76)	(26.51)
Increase (decrease) for the period	(111.83)	(37.40)
Net asset value per Redeemable Unit, beginning of period	2,887.46	2,982.64
Net asset value per Redeemable Unit, end of period	2,775.63	2,945.24
Class Z Redeemable Units [Member]
Per Redeemable Unit Performance (for a unit outstanding throughout the period):
Net realized and unrealized gains (losses)	(33.27)	(4.19)
Net investment loss	(4.41)	(5.85)
Increase (decrease) for the period	(37.68)	(10.04)
Net asset value per Redeemable Unit, beginning of period	1,122.81	1,139.98
Net asset value per Redeemable Unit, end of period	$ 1,085.13	$ 1,129.94

Financial Highlights - Ratios t

Financial Highlights - Ratios to Average Limited Partners' Capital (Detail)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Class A Redeemable Units [Member]
Ratios to Average Limited Partners' Capital:
Net investment loss	(3.70%)	(3.70%)
Operating expenses	5.00%	4.20%
Incentive fees	0.00%	0.00%
Total expenses	5.00%	4.20%
Total return:
Total return before incentive fees	(3.90%)	(1.30%)
Incentive fees	(0.00%)	(0.00%)
Total return after incentive fees	(3.90%)	(1.30%)
Class Z Redeemable Units [Member]
Ratios to Average Limited Partners' Capital:
Net investment loss	(1.70%)	(2.10%)
Operating expenses	3.00%	2.60%
Incentive fees	0.00%	0.00%
Total expenses	3.00%	2.60%
Total return:
Total return before incentive fees	(3.40%)	(0.90%)
Incentive fees	(0.00%)	(0.00%)
Total return after incentive fees	(3.40%)	(0.90%)

Trading Activities - Additional

Trading Activities - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2018USD ($)Contracts	Mar. 31, 2017USD ($)Contracts
Futures Contracts [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Average number of derivative contracts traded	12,333	20,954
Forward Contracts [Member] | Metals [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Average number of derivative contracts traded	1,392	2,297
Forward Contracts [Member] | Currencies [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Average notional value of derivative | $	$ 495,821,858	$ 1,629,926,653

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, 2018	Dec. 31, 2017
Derivative [Line Items]
Gross Amounts Recognized, Assets	$ 6,436,484	$ 21,567,614
Gross Amounts Offset in the Statements of Financial Condition, Assets	(5,330,722)	(15,690,280)
Amounts Presented in the Statements of Financial Condition, Assets	1,105,762	5,877,334
Financial Instruments, Assets	0	0
Cash Collateral Received/Pledged, Assets	0	0
Net Amount, Assets	1,105,762	5,877,334
Gross Amounts Recognized, Liabilities	(5,416,562)	(15,690,280)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	5,330,722	15,690,280
Amounts Presented in the Statements of Financial Condition, Liabilities	(85,840)
Financial Instruments, Liabilities	0	0
Cash Collateral Received/Pledged, Liabilities	0	0
Net Amount, Liabilities	(85,840)
Net fair value	1,019,922	5,877,334
Futures Contracts [Member]
Derivative [Line Items]
Gross Amounts Recognized, Assets	3,147,017	9,793,492
Gross Amounts Offset in the Statements of Financial Condition, Assets	(2,041,255)	(4,789,432)
Amounts Presented in the Statements of Financial Condition, Assets	1,105,762	5,004,060
Financial Instruments, Assets	0	0
Cash Collateral Received/Pledged, Assets	0	0
Net Amount, Assets	1,105,762	5,004,060
Gross Amounts Recognized, Liabilities	(2,041,255)	(4,789,432)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	2,041,255	4,789,432
Financial Instruments, Liabilities	0	0
Cash Collateral Received/Pledged, Liabilities	0	0
Forward Contracts [Member]
Derivative [Line Items]
Gross Amounts Recognized, Assets	3,289,467	11,774,122
Gross Amounts Offset in the Statements of Financial Condition, Assets	(3,289,467)	(10,900,848)
Amounts Presented in the Statements of Financial Condition, Assets		873,274
Financial Instruments, Assets	0	0
Cash Collateral Received/Pledged, Assets	0	0
Net Amount, Assets		873,274
Gross Amounts Recognized, Liabilities	(3,375,307)	(10,900,848)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	3,289,467	10,900,848
Amounts Presented in the Statements of Financial Condition, Liabilities	(85,840)
Financial Instruments, Liabilities	0	0
Cash Collateral Received/Pledged, Liabilities	0	$ 0
Net Amount, Liabilities	$ (85,840)

Trading Activities - Gross Fair

Trading Activities - Gross Fair Values of Derivative Instruments of Futures and Forward Contracts Traded (Detail) - USD ($)	Mar. 31, 2018	Dec. 31, 2017
Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	$ 3,147,017	$ 9,793,492
Total unrealized depreciation on open contracts	(2,041,255)	(4,789,432)
Net unrealized appreciation (depreciation) on open contracts	1,105,762	5,004,060
Energy [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	788,505	4,510,786
Total unrealized depreciation on open contracts	(21,839)	(787,785)
Grains [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	237,848	629,298
Total unrealized depreciation on open contracts	(462,184)	(29,437)
Indices [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	878,002	2,719,041
Total unrealized depreciation on open contracts	(804,754)	(1,479,383)
Interest Rates U.S. [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	159,641	71,430
Total unrealized depreciation on open contracts	(220,531)	(757,358)
Interest Rates Non-U.S. [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	708,680	641,412
Total unrealized depreciation on open contracts	(475,462)	(1,322,106)
Livestock [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	82,022
Total unrealized depreciation on open contracts		(27,290)
Metals [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	32,700	666,037
Total unrealized depreciation on open contracts	(51,910)	(263,285)
Softs [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	259,619	555,488
Total unrealized depreciation on open contracts	(4,575)	(122,788)
Forward Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	3,289,467	11,774,122
Total unrealized depreciation on open contracts	(3,375,307)	(10,900,848)
Net unrealized appreciation (depreciation) on open contracts	(85,840)	873,274
Forward Contracts [Member] | Metals [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	1,917,685	3,586,972
Total unrealized depreciation on open contracts	(1,829,770)	(3,570,209)
Forward Contracts [Member] | Currencies [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	1,371,782	8,187,150
Total unrealized depreciation on open contracts	$ (1,545,537)	$ (7,330,639)

Trading Activities - Trading Ga

Trading Activities - Trading Gains and Losses by Market Sector on Derivative Instruments Traded (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Derivative [Line Items]
Total trading results	$ (8,454,099)	$ 3,580,553
Currencies [Member]
Derivative [Line Items]
Total trading results	(1,391,084)	(669,763)
Energy [Member]
Derivative [Line Items]
Total trading results	616,712	(3,275,657)
Grains [Member]
Derivative [Line Items]
Total trading results	(2,292,174)	(1,810,506)
Indices [Member]
Derivative [Line Items]
Total trading results	(4,052,494)	12,822,835
Interest Rates U.S. [Member]
Derivative [Line Items]
Total trading results	(1,936,095)	501,573
Interest Rates Non-U.S. [Member]
Derivative [Line Items]
Total trading results	1,049,483	(2,891,280)
Livestock [Member]
Derivative [Line Items]
Total trading results	(35,210)	(67,230)
Metals [Member]
Derivative [Line Items]
Total trading results	(634,887)	(1,380,688)
Softs [Member]
Derivative [Line Items]
Total trading results	$ 221,650	$ 351,269

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail) - DerivativeInstrument	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative instruments held	0	0	0

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Assets and Liabilities Measured at Fair Value (Detail) - USD ($)	Mar. 31, 2018	Dec. 31, 2017
Assets
Total assets	$ 6,436,484	$ 21,567,614
Liabilities
Total liabilities	5,416,562	15,690,280
Futures Contracts [Member]
Assets
Total assets	3,147,017	9,793,492
Liabilities
Total liabilities	2,041,255	4,789,432
Forward Contracts [Member]
Assets
Total assets	3,289,467	11,774,122
Liabilities
Total liabilities	3,375,307	10,900,848
Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1) [Member]
Assets
Total assets	3,147,017	9,793,492
Liabilities
Total liabilities	2,041,255	4,789,432
Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1) [Member] | Futures Contracts [Member]
Assets
Total assets	3,147,017	9,793,492
Liabilities
Total liabilities	2,041,255	4,789,432
Significant Other Observable Inputs (Level 2) [Member]
Assets
Total assets	3,289,467	11,774,122
Liabilities
Total liabilities	3,375,307	10,900,848
Significant Other Observable Inputs (Level 2) [Member] | Forward Contracts [Member]
Assets
Total assets	3,289,467	11,774,122
Liabilities
Total liabilities	$ 3,375,307	$ 10,900,848

Fair Value Measurements - Sum30

Fair Value Measurements - Summary of Assets and Liabilities Measured at Fair Value (Parenthetical) (Detail)	Dec. 31, 2017USD ($)
Fair Value Disclosures [Abstract]
Transfers of assets between Level 1 to Level 2	$ 3,292,660
Transfers of liabilities between Level 1 to Level 2	$ 3,786,690

Investment in the Funds - Addit

Investment in the Funds - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
CMF Winton Master L.P. [Member]
Investment [Line Items]
Maximum amount of partnership assets allocated to trading advisor	1.5 times
Percentage owned by partnership	44.00%	45.80%
Willowbridge Associates Inc [Member]
Investment [Line Items]
Maximum amount of partnership assets allocated to trading advisor	Three times
CMF TT II, LLC [Member]
Investment [Line Items]
Percentage owned by partnership	100.00%	95.80%
CMF Willowbridge Master Fund L.P.[Member]
Investment [Line Items]
Percentage owned by partnership	87.60%	82.50%
CMF FORT Contrarian Master Fund LLC [Member]
Investment [Line Items]
Maximum amount of partnership assets allocated to trading advisor	1.25 times
Percentage owned by partnership	82.80%

Investment in the Funds - Asset

Investment in the Funds - Assets, Liabilities and Partners' Capital/Members' Capital of Funds (Detail) - USD ($)	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Investment Holdings [Line Items]
Total Assets	$ 760,935,331	$ 818,584,324
Total Liabilities	19,206,071	20,051,397
Total Capital	741,729,260	798,532,927	$ 942,295,976	$ 997,913,751
CMF Winton Master L.P. [Member]
Investment Holdings [Line Items]
Total Assets	363,232,792	408,725,040
Total Liabilities	6,269,415	11,076,733
Total Capital	356,963,377	397,648,307
CMF TT II, LLC [Member]
Investment Holdings [Line Items]
Total Assets	172,488,409	217,045,353
Total Liabilities	8,280,942	15,335,906
Total Capital	164,207,467	201,709,447
CMF Willowbridge Master Fund L.P.[Member]
Investment Holdings [Line Items]
Total Assets	232,751,446	336,101,673
Total Liabilities	5,044,955	39,096,772
Total Capital	227,706,491	$ 297,004,901
CMF FORT Contrarian Master Fund LLC [Member]
Investment Holdings [Line Items]
Total Assets	153,357,449
Total Liabilities	554,239
Total Capital	$ 152,803,210

Investment in the Funds - Net I

Investment in the Funds - Net Investment Income (Loss), Trading Results and Net Income (Loss) for Funds (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Investment Holdings [Line Items]
Net Investment Income (Loss)	$ (7,022,995)	$ (8,735,418)
Total trading results	(23,499,376)	(3,631,714)
Net income (loss)	(30,522,371)	(12,367,132)
CMF Winton Master L.P. [Member]
Investment Holdings [Line Items]
Net Investment Income (Loss)	1,096,751	390,987
Total trading results	(11,736,511)	7,430,968
Net income (loss)	(10,639,760)	7,821,955
CMF TT II, LLC [Member]
Investment Holdings [Line Items]
Net Investment Income (Loss)	(149,393)	(809,650)
Total trading results	(13,329,963)	(5,798,084)
Net income (loss)	(13,479,356)	(6,607,734)
CMF Willowbridge Master Fund L.P.[Member]
Investment Holdings [Line Items]
Net Investment Income (Loss)	131,915	196,912
Total trading results	5,989,417	(6,637,913)
Net income (loss)	6,121,332	$ (6,441,001)
CMF FORT Contrarian Master Fund LLC [Member]
Investment Holdings [Line Items]
Net Investment Income (Loss)	243,808
Total trading results	(3,736,271)
Net income (loss)	$ (3,492,463)

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		12 Months Ended
		Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Investment Holdings [Line Items]
% of Partners' Capital		87.36%		82.22%
Fair Value	[1]	$ 647,979,106		$ 656,495,374
Income (Loss)		(23,499,376)	$ (3,631,714)
Expenses, Clearing Fees		120,835	201,954
Expenses, Professional Fees		392,533	462,201
Management fees		2,023,092	2,458,902
Net income (loss)		$ (30,522,371)	$ (12,367,132)
CMF Winton Master L.P. [Member]
Investment Holdings [Line Items]
% of Partners' Capital		21.22%		23.38%
Fair Value		$ 157,403,722		$ 186,666,465
CMF TT II, LLC [Member]
Investment Holdings [Line Items]
% of Partners' Capital		22.14%		25.26%
Fair Value		$ 164,207,467		$ 201,709,447
CMF Willowbridge Master Fund L.P.[Member]
Investment Holdings [Line Items]
% of Partners' Capital		26.92%		33.58%
Fair Value		$ 199,662,268		$ 268,119,462
CMF FORT Contrarian Master Fund LLC [Member]
Investment Holdings [Line Items]
% of Partners' Capital		17.08%
Fair Value		$ 126,705,649
Investment In Funds [Member]
Investment Holdings [Line Items]
Income (Loss)		(12,857,776)		(6,292,776)
Expenses, Clearing Fees		1,033,751		693,066
Expenses, Professional Fees		33,504		21,158
Management fees		403,247		560,025
Incentive Fee		47,039		25,157
Net income (loss)		(14,375,317)		(7,592,182)
Investment In Funds [Member] | Commodity [Member] | CMF Winton Master L.P. [Member]
Investment Holdings [Line Items]
Income (Loss)		(3,556,924)		3,733,396
Expenses, Clearing Fees		58,878		69,235
Expenses, Professional Fees		7,679		7,586
Net income (loss)		$ (3,623,481)		$ 3,656,575
Investment Objective		Commodity Portfolio		Commodity Portfolio
Redemptions Permitted		Monthly		Monthly
Investment In Funds [Member] | Commodity [Member] | CMF TT II, LLC [Member]
Investment Holdings [Line Items]
Income (Loss)		$ (12,768,078)		$ (5,231,790)
Expenses, Clearing Fees		260,797		429,787
Expenses, Professional Fees		194		185
Management fees		403,247		560,025
Incentive Fee		47,039		25,157
Net income (loss)		$ (13,479,355)		$ (6,246,944)
Investment Objective		Commodity Portfolio		Commodity Portfolio
Redemptions Permitted		Monthly		Monthly
Investment In Funds [Member] | Commodity [Member] | CMF Willowbridge Master Fund L.P.[Member]
Investment Holdings [Line Items]
Income (Loss)		$ 6,248,699		$ (4,794,382)
Expenses, Clearing Fees		638,607		194,044
Expenses, Professional Fees		16,278		13,387
Net income (loss)		$ 5,593,814		$ (5,001,813)
Investment Objective		Commodity Portfolio		Commodity Portfolio
Redemptions Permitted		Monthly		Monthly
Investment In Funds [Member] | Commodity [Member] | CMF FORT Contrarian Master Fund LLC [Member]
Investment Holdings [Line Items]
Income (Loss)		$ (2,781,473)
Expenses, Clearing Fees		75,469
Expenses, Professional Fees		9,353
Net income (loss)		$ (2,866,295)
Investment Objective		Commodity Portfolio
Redemptions Permitted		Monthly
[1]	Defined in Note 1.

Financial Instrument Risks - Ad

Financial Instrument Risks - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2018
Concentration Risk [Line Items]
Financial instruments maturity period	1 year
Minimum [Member] | Credit Concentration Risk [Member] | Partnership's/Funds' Contracts [Member] | Over the Counter [Member]
Concentration Risk [Line Items]
Concentration risk percentage	25.20%
Maximum [Member] | Credit Concentration Risk [Member] | Partnership's/Funds' Contracts [Member] | Over the Counter [Member]
Concentration Risk [Line Items]
Concentration risk percentage	41.40%

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail)	Apr. 01, 2018
Subsequent Event [Member] | Willowbridge Associates Inc [Member]
Subsequent Event [Line Items]
Percentage of management fee	1.25%