Emerging Cta Portfolio 10-Q 8 Nov 18 2018 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2018	Oct. 31, 2018
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q3
Trading Symbol	CTA
Entity Registrant Name	EMERGING CTA PORTFOLIO LP
Entity Central Index Key	1,269,190
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Class A Redeemable Units [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		29,128.8240
Class Z Redeemable Units [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		21.2650

Statements of Financial Conditi

Statements of Financial Condition - USD ($)		Sep. 30, 2018	Dec. 31, 2017
Assets:
Investment in the Funds(1), at fair value	[1]	$ 23,010,251	$ 5,132,400
Redemptions receivable from the Funds		842,390	2,272,620
Equity in trading account:
Unrestricted cash		8,932,441	34,088,125
Restricted cash		2,430,010	2,501,707
Net unrealized appreciation on open futures contracts		445,697	187,483
Options purchased, at fair value (premiums paid $0 and $23,040 at September 30, 2018 and December 31, 2017, respectively)			51,625
Total equity in trading account		11,808,148	36,828,940
Cash at bank			436
Interest receivable		14,960	36,216
Total assets		35,675,749	44,270,612
Liabilities:
Options written, at fair value (premiums received $0 and $4,540 at September 30, 2018 and December 31, 2017, respectively)			23,000
Accrued expenses:
Ongoing selling agent fees		58,712	72,664
Management fees		36,387	48,754
General Partner fees		29,638	36,773
Professional fees		109,887	119,512
Redemptions payable to General Partner			150,000
Redemptions payable to Limited Partners		741,257	2,077,297
Total liabilities		975,881	2,528,000
Partners' Capital:
Total partners' capital (net asset value)		34,699,868	41,742,612
Total liabilities and partners' capital		35,675,749	44,270,612
Class A Redeemable Units [Member]
Partners' Capital:
Limited Partners		34,253,502	41,246,729
Total partners' capital (net asset value)		$ 34,253,502	$ 41,246,729
Net asset value per Redeemable Unit:
Net asset value per Redeemable Unit		$ 1,142.71	$ 1,162.18
Class Z Redeemable Units [Member]
Partners' Capital:
General Partner		$ 426,130	$ 475,611
Limited Partners		20,236	20,272
Total partners' capital (net asset value)		$ 446,366	$ 495,883
Net asset value per Redeemable Unit:
Net asset value per Redeemable Unit		$ 951.59	$ 953.31
[1]	Defined in Note 1.

Statements of Financial Condi_2

Statements of Financial Condition (Parenthetical) - USD ($)	Sep. 30, 2018	Dec. 31, 2017
Options purchased premiums	$ 0	$ 23,040
Options written premiums	$ 0	$ 4,540
Class A Redeemable Units [Member]
Limited Partners Redeemable Units outstanding	29,975.6460	35,490.8260
Class Z Redeemable Units [Member]
General Partner Redeemable Units outstanding	447.8090	498.9050
Limited Partners Redeemable Units outstanding	21.2650	21.2650

Condensed Schedule of Investmen

Condensed Schedule of Investments		Sep. 30, 2018USD ($)Contract	Dec. 31, 2017USD ($)Contract
Schedule of Investments [Line Items]
% of Partners' Capital		66.31%	12.30%
Total investment in the Funds	[1]	$ 23,010,251	$ 5,132,400
Futures Contracts [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts		$ 445,697	$ 187,483
% of Partners' Capital		1.28%	0.45%
Futures Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts		$ (102,651)	$ 140,143
% of Partners' Capital		(0.30%)	0.34%
Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts		$ 548,348	$ 47,340
% of Partners' Capital		1.58%	0.11%
Options Contracts [Member] | Long [Member] | Calls Option [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts			$ 51,625
% of Partners' Capital			0.12%
Options Contracts [Member] | Short [Member] | Calls Option [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts			$ (23,000)
% of Partners' Capital			(0.06%)
SECOR Master Fund L.P. [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		24.18%	11.43%
Total investment in the Funds		$ 8,390,584	$ 4,770,275
Cambridge Master Fund L.P. [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		2.36%	0.87%
Total investment in the Funds		$ 818,353	$ 362,125
CMF Harbour Square Master Fund LLC [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		26.33%
Total investment in the Funds		$ 9,134,952
CMF AE Capital Master Fund LLC [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		13.44%
Total investment in the Funds		$ 4,666,362
Currencies [Member] | Futures Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		46	90
Net unrealized appreciation (depreciation) on open contracts		$ (23,965)	$ 70,786
% of Partners' Capital		(0.07%)	0.17%
Currencies [Member] | Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		224	103
Net unrealized appreciation (depreciation) on open contracts		$ 100,846	$ (36,611)
% of Partners' Capital		0.29%	(0.09%)
Energy [Member] | Futures Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		67	78
Net unrealized appreciation (depreciation) on open contracts		$ 154,500	$ 213,269
% of Partners' Capital		0.44%	0.51%
Energy [Member] | Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		5	21
Net unrealized appreciation (depreciation) on open contracts		$ (22,200)	$ (38,270)
% of Partners' Capital		(0.06%)	(0.09%)
Energy [Member] | Options Contracts [Member] | Long [Member] | Calls Option [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts			$ 43,000
% of Partners' Capital			0.10%
Energy [Member] | Options Contracts [Member] | Short [Member] | Calls Option [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts			$ (23,000)
% of Partners' Capital			(0.06%)
Grains [Member] | Futures Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		337	117
Net unrealized appreciation (depreciation) on open contracts		$ (70,708)	$ (14,200)
% of Partners' Capital		(0.20%)	(0.03%)
Grains [Member] | Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		173	183
Net unrealized appreciation (depreciation) on open contracts		$ 33,754	$ 66,282
% of Partners' Capital		0.10%	0.16%
Indices [Member] | Futures Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		196	319
Net unrealized appreciation (depreciation) on open contracts		$ (36,973)	$ (22,330)
% of Partners' Capital		(0.11%)	(0.05%)
Indices [Member] | Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		171	64
Net unrealized appreciation (depreciation) on open contracts		$ 256,754	$ (62,771)
% of Partners' Capital		0.74%	(0.15%)
Interest Rates Non-U.S. [Member] | Futures Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		191	45
Net unrealized appreciation (depreciation) on open contracts		$ (93,253)	$ (19,505)
% of Partners' Capital		(0.27%)	(0.05%)
Interest Rates Non-U.S. [Member] | Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		323	121
Net unrealized appreciation (depreciation) on open contracts		$ 77,432	$ 13,667
% of Partners' Capital		0.22%	0.03%
Livestock [Member] | Futures Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		17	138
Net unrealized appreciation (depreciation) on open contracts		$ 7,460	$ (133,257)
% of Partners' Capital		0.02%	(0.32%)
Livestock [Member] | Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		3	127
Net unrealized appreciation (depreciation) on open contracts		$ (1,360)	$ 139,115
% of Partners' Capital		(0.01%)	0.34%
Metals [Member] | Futures Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract			32
Net unrealized appreciation (depreciation) on open contracts			$ 50,653
% of Partners' Capital			0.12%
Metals [Member] | Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		51	14
Net unrealized appreciation (depreciation) on open contracts		$ 13,815	$ (40,050)
% of Partners' Capital		0.04%	(0.10%)
Softs [Member] | Futures Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		37	82
Net unrealized appreciation (depreciation) on open contracts		$ (39,712)	$ (5,273)
% of Partners' Capital		(0.11%)	(0.01%)
Softs [Member] | Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		78	26
Net unrealized appreciation (depreciation) on open contracts		$ (14,583)	$ (3,053)
% of Partners' Capital		(0.04%)	(0.01%)
Softs [Member] | Options Contracts [Member] | Long [Member] | Calls Option [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts			$ 8,625
% of Partners' Capital			0.02%
Interest Rates U.S. [Member] | Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		158	35
Net unrealized appreciation (depreciation) on open contracts		$ 103,890	$ 9,031
% of Partners' Capital		0.30%	0.02%
[1]	Defined in Note 1.

Condensed Schedule of Investm_2

Condensed Schedule of Investments (Parenthetical)	Dec. 31, 2017USD ($)
Schedule of Investments [Line Items]
Options purchased premiums	$ 23,040
Options written premiums	4,540
Options Contracts [Member] | Calls Option [Member] | Long [Member]
Schedule of Investments [Line Items]
Options purchased premiums	23,040
Options Contracts [Member] | Calls Option [Member] | Short [Member]
Schedule of Investments [Line Items]
Options written premiums	$ 4,540

Statements of Income and Expens

Statements of Income and Expenses - USD ($)		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Investment Income:
Interest income		$ 44,893	$ 86,273	$ 171,186	$ 196,377
Interest income allocated from the Funds		111,403	34,845	270,827	110,260
Total investment income		156,296	121,118	442,013	306,637
Expenses:
Expenses allocated from the Funds		70,609	56,000	168,629	179,636
Clearing fees related to direct investments		25,251	46,563	120,587	159,637
Ongoing selling agent fees		183,960	256,614	584,582	869,315
Management fees		113,735	180,760	354,035	612,038
General Partner fees		92,853	129,453	294,844	434,890
Incentive fees			24,101		118,265
Professional fees		92,789	89,930	253,233	277,834
Total expenses		579,197	783,421	1,775,910	2,651,615
Net investment loss		(422,901)	(662,303)	(1,333,897)	(2,344,978)
Net gains (losses) on trading of commodity interests and investment in the Funds:
Net realized gains (losses) on closed contracts		390,043	502,882	327,396	(519,242)
Net realized gains (losses) on closed contracts allocated from the Funds		(234,125)	(1,307,447)	359,402	588,297
Net change in unrealized gains (losses) on open contracts		248,298	(120,234)	250,482	(226,654)
Net change in unrealized gains (losses) on open contracts allocated from the Funds		(815,673)	219,847	(166,946)	134,413
Total trading results		(411,457)	(704,952)	770,334	(23,186)
Net income (loss)		$ (834,358)	$ (1,367,255)	(563,563)	(2,368,164)
Class A Redeemable Units [Member]
Net gains (losses) on trading of commodity interests and investment in the Funds:
Net income (loss)				$ (564,046)	$ (2,354,113)
Net income (loss) per Redeemable Unit	[1]	$ (26.92)	$ (32.42)	$ (19.47)	$ (55.28)
Weighted average Redeemable Units outstanding		31,563.7867	41,972.5350	33,205.2276	46,281.6278
Class Z Redeemable Units [Member]
Net gains (losses) on trading of commodity interests and investment in the Funds:
Net income (loss)				$ 483	$ (14,051)
Net income (loss) per Redeemable Unit	[1]	$ (17.53)	$ (21.41)	$ (1.72)	$ (21.41)
Weighted average Redeemable Units outstanding		469.0740	656.2520	486.1060	656.2520
[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 A Redeemable Units [Member]General Partner [Member]	Class Z Redeemable Units [Member]	Class Z Redeemable Units [Member]General Partner [Member]
Partners' Capital, beginning of period at Dec. 31, 2016	$ 63,890,718			$ 63,890,718
Subscriptions		$ 157,041	$ 656,252		$ 157,041			$ 656,252
Redemptions		$ (12,942,123)	$ (706,349)		$ (12,942,123)	$ (706,349)
Net income (loss)	(2,368,164)			(2,354,113)			$ (14,051)
Partners' Capital, end of period at Sep. 30, 2017	$ 48,687,375			$ 48,045,174			$ 642,201
Partners' Capital, Balance - Redeemable Units at Dec. 31, 2016	50,937.7676			50,937.7676
Subscriptions - Limited Partners		124.9570	656.2520		124.9570			656.2520
Redemptions - Redeemable Units		(10,419.3430)	(572.7556)		(10,419.3430)	(572.7556)
Partners' Capital, Balance - Redeemable Units at Sep. 30, 2017	40,726.8780			40,070.6260			656.2520
Partners' Capital, beginning of period at Dec. 31, 2017	$ 41,742,612			$ 41,246,729			$ 495,883
Subscriptions		$ 50,000			$ 50,000
Redemptions		$ (6,479,181)	$ (50,000)		$ (6,479,181)			$ (50,000)
Net income (loss)	(563,563)			(564,046)			483
Partners' Capital, end of period at Sep. 30, 2018	$ 34,699,868			$ 34,253,502			$ 446,366
Partners' Capital, Balance - Redeemable Units at Dec. 31, 2017	36,010.9960			35,490.8260			520.1700
Subscriptions - Limited Partners		43.3540			43.3540
Redemptions - Redeemable Units		(5,558.5340)	(51.0960)		(5,558.5340)			(51.0960)
Partners' Capital, Balance - Redeemable Units at Sep. 30, 2018	30,444.7200			29,975.6460			469.0740

Organization

Organization	9 Months Ended
	Sep. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	1. Organization: Emerging CTA Portfolio L.P. (the “Partnership”) is a limited partnership that was organized on July 7, 2003 under the partnership laws of the State of New York. The objective of the Partnership is to achieve capital appreciation through the allocation of assets to early-stage commodity trading advisors or established advisors employing early-stage strategies, which engage, directly and indirectly through investment in the Funds (as defined below), in speculative trading of a diversified portfolio of commodity interests, including futures, options on futures, forward, options on forward, spot and swap contracts, cash commodities and any other rights or interests pertaining thereto. The Partnership may also enter into swap and other derivative transactions directly and through its investment in the Funds with the approval of the General Partner (as defined below). The sectors traded include currencies, livestock, energy, grains, metals, indices, softs and U.S. and non-U.S. Between December 1, 2003 (commencement of the offering period) and August 5, 2004, 20,872 units of limited partnership interest (“Redeemable Units”) were sold at $1,000 per Redeemable Unit. The proceeds of the initial offering were held in an escrow account until August 6, 2004, at which time they were remitted to the Partnership for trading. The Partnership 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 AE Capital Master (as defined below) and Harbour Square 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 September 30, 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 prior periods included in this report, the Partnership/Funds also deposited a portion of their cash in non-trading As of September 1, 2011, the Partnership began offering three classes of limited partnership interests: Class A Redeemable Units, Class D Redeemable Units and Class Z Redeemable Units; each of which will be referred to as a “Class” and collectively referred to as the “Classes.” All Redeemable Units issued prior to September 1, 2011 were deemed “Class A Redeemable Units.” The rights, liabilities, risks, and fees associated with investment in the Class A Redeemable Units were not changed. Class A Redeemable Units and Class D Redeemable Units are available to taxable U.S. individuals and institutions, U.S. tax exempt individuals and institutions and non-U.S. All trading decisions are made for the Partnership by its trading advisors (the “Advisors”). As of September 30, 2018, AE Capital PTY Limited (“AE Capital”), The Cambridge Strategy (Asset Management) Limited (“Cambridge”), Harbour Square Capital Management LLC (“Harbour Square”), Independent View BV (“Independent View”) and SECOR Capital Advisors, LP (“SECOR”) served as the Partnership’s major commodity trading advisors. Effective February 28, 2017, Willowbridge Associates Inc. (“Willowbridge”) ceased to act as a commodity trading advisor to the Partnership. Effective March 1, 2018, Launchpad Capital Management, LLC (“Launchpad”) ceased to act as a commodity trading advisor to the Partnership. Effective April 30, 2018, Buttonwood Merchants, LLC (“Buttonwood”) ceased to act as a commodity trading advisor to the Partnership. 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 individually managed accounts, or indirectly, through its investment in the Funds. In addition, the General Partner may allocate the Partnership’s assets to additional non-major The Advisors are not affiliated with one another, are not affiliated with the General Partner, MS&Co. or JPMorgan, and are not responsible for the organization or operation of the Partnership. References herein to the “Advisors” may also include, as relevant, references to Launchpad, Buttonwood and Willowbridge. On October 1, 2016, the Partnership allocated a portion of its assets to Independent View, which trades the assets directly pursuant to Independent View’s IV Quantitative Futures Fund Program through a managed account in the Partnership’s name. On September 1, 2017, the Partnership allocated a portion of its assets to Launchpad. Launchpad began trading the assets directly pursuant to Launchpad’s MJP Commodity Strategy through a managed account in the Partnership’s name. Effective on March 1, 2018, Launchpad transferred its rights and obligations under its management agreement with the Partnership and the General Partner to Buttonwood, and Buttonwood entered into a new management agreement with the Partnership and the General Partner pursuant to which Buttonwood assumed Launchpad’s rights and obligations. Buttonwood traded and managed the Partnership’s assets allocated to Buttonwood pursuant to its Liquid Commodity Strategy through a managed account in the Partnership’s name up to April 30, 2018. Cambridge Master Fund L.P. (“Cambridge Master”), SECOR Master Fund L.P. (“SECOR Master”), CMF AE Capital Master Fund LLC (“AE Capital Master”) and the Partnership have, and prior to its full redemption, CMF Willowbridge Master Fund L.P. (“Willowbridge Master”) had, entered into futures brokerage account agreements and foreign exchange brokerage account agreements with MS&Co. CMF Harbour Square Master Fund LLC (“Harbour Square Master”) has entered into a futures brokerage account agreement with MS&Co. Cambridge Master, SECOR Master, AE Capital Master and Harbour Square Master are collectively referred to as the “Funds.” References herein to “Funds” may also include as relevant, reference to Willowbridge 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, user, give-up, Effective July 12, 2017, Cambridge Master and SECOR 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 Cambridge Master and SECOR Master, Cambridge and SECOR are both parties to the FX Agreements for the Funds to which each acts as 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 with Morgan Stanley Smith Barney LLC, doing business as Morgan Stanley Wealth Management (“Morgan Stanley Wealth Management”) (the “Selling Agreement”). Under the Selling Agreement, the Partnership pays Morgan Stanley Wealth Management a monthly ongoing selling agent fee equal to (i) 2.0% per year of adjusted month-end month-end 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	9 Months Ended
	Sep. 30, 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 September 30, 2018, the results of its operations for the three and nine months ended September 30, 2018 and 2017 and changes in partners’ capital for the nine months ended September 30, 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 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. 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	9 Months Ended
	Sep. 30, 2018
Investment Company [Abstract]
Financial Highlights	3. Financial Highlights: Financial highlights for the limited partner Classes as a whole for the three and nine months ended September 30, 2018 and 2017 were as follows: Three Months Ended September 30, Nine Months Ended September 30, 2018 2017 2018 2017 Class A Class Z Class A Class A Class Z Class A Per Redeemable Unit Performance (for a unit outstanding throughout the period):* Net realized and unrealized gains (losses) $ (13.61) $ (11.32) $ (16.76) $ 20.43 $ 16.71 $ (4.72) Net investment loss (13.31) (6.21) (15.66) (39.90) (18.43) (50.56) Increase (decrease) for the period (26.92) (17.53) (32.42) (19.47) (1.72) (55.28) Net asset value per Redeemable Unit, beginning of period 1,169.63 969.12 1,231.43 1,162.18 953.31 1,254.29 Net asset value per Redeemable Unit, end of period $ 1,142.71 $ 951.59 $ 1,199.01 $ 1,142.71 $ 951.59 $ 1,199.01 Three Months Ended September 30, Nine Months Ended September 30, 2018 2017 2018 2017 Class A Class Z Class A Class A Class Z Class A Ratios to Average Limited Partners’ Capital:** Net investment loss *** (4.6) % (2.5) % (5.1) % (4.6) % (2.6) % (5.4) % Operating expenses 6.3 % 4.2 % 5.9 % 6.1 % 4.1 % 6.0 % Incentive fees - % - % 0.1 % - % - % 0.2 % Total expenses 6.3 % 4.2 % 6.0 % 6.1 % 4.1 % 6.2 % Total return: Total return before incentive fees (2.3) % (1.8) % (2.5) % (1.7) % (0.2) % (4.2) % Incentive fees - % - % (0.1) % - % - % (0.2) % Total return after incentive fees (2.3) % (1.8) % (2.6) % (1.7) % (0.2) % (4.4) % * 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. 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 for the 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	9 Months Ended
	Sep. 30, 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 its assets through a “master/feeder” structure. The Partnership’s pro-rata The 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 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 September 30, 2018 and 2017 were 1,773 and 1,209, respectively. The monthly average number of futures contracts traded directly by the Partnership during the nine months ended September 30, 2018 and 2017 were 1,663 and 2,014, respectively. The monthly average number of option contracts traded directly by the Partnership during the three months ended September 30, 2018 and 2017 were 0 and 97, respectively. The monthly average number of option contracts traded directly by the Partnership during the nine months ended September 30, 2018 and 2017 were 241 and 59, respectively. The monthly average notional value of currency forward contracts traded directly by the Partnership during the three months ended September 30, 2018 and 2017 were $0 and $89,134,286, respectively. The monthly average notional value of currency forward contracts traded directly by the Partnership during the nine months ended September 30, 2018 and 2017 were $4,680,507 and $62,032,845, respectively. 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 directly by the Partnership for its direct trading. In addition, clearing fees are borne by the Funds and are allocated to the Funds’ 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 agreements or similar arrangements as of September 30, 2018 and December 31, 2017, respectively. September 30, 2018 Gross Gross Amounts Offset in the Statements of Amounts Statements of Gross Amounts Not Offset in the Net Financial Cash Collateral Pledged* Assets Futures $ 1,030,836 $ (585,139) $ 445,697 $ - $ - $ 445,697 Total assets $ 1,030,836 $ (585,139) $ 445,697 $ - $ - $ 445,697 Liabilities Futures $ (585,139) $ 585,139 $ - $ - $ - $ - Total liabilities $ (585,139) $ 585,139 $ - $ - $ - $ - Net Fair Value $ 445,697 * December 31, 2017 Gross Gross Amounts Statements of Amounts Presented Statements of Gross Amounts Not Offset in the Net Amount Financial Cash Collateral Assets Futures $ 710,148 $ (522,665) $ 187,483 $ - $ - $ 187,483 Total assets $ 710,148 $ (522,665) $ 187,483 $ - $ - $ 187,483 Liabilities Futures $ (522,665) $ 522,665 $ - $ - $ - $ - Total liabilities $ (522,665) $ 522,665 $ - $ - $ - $ - Net Fair Value $ 187,483 * * 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 option contracts, as applicable, held directly by the Partnership as separate assets and liabilities as of September 30, 2018 and December 31, 2017, respectively. September 30, 2018 Assets Futures Contracts Currencies $ 128,424 Energy 155,410 Grains 59,813 Indices 415,281 Interest Rates U.S. 106,828 Interest Rates Non-U.S. 89,689 Livestock 7,460 Metals 57,030 Softs 10,901 Total unrealized appreciation on open futures contracts 1,030,836 Liabilities Futures Contracts Currencies (51,543 ) Energy (23,110 ) Grains (96,767 ) Indices (195,500 ) Interest Rates U.S. (2,938 ) Interest Rates Non-U.S. (105,510 ) Livestock (1,360 ) Metals (43,215 ) Softs (65,196 ) Total unrealized depreciation on open futures contracts (585,139 ) Net unrealized appreciation on open futures contracts $ 445,697 * * This amount is in “Net unrealized appreciation on open futures contracts” in the Statements of Financial Condition. December 31, 2017 Assets Futures Contracts Currencies $ 94,211 Energy 214,439 Grains 69,673 Indices 62,560 Interest Rates U.S. 14,844 Interest Rates Non-U.S. 16,572 Livestock 144,163 Metals 50,653 Softs 43,033 Total unrealized appreciation on open futures contracts 710,148 Liabilities Futures Contracts Currencies (60,036) Energy (39,440) Grains (17,591) Indices (147,661) Interest Rates U.S. (5,813) Interest Rates Non-U.S. (22,410) Livestock (138,305) Metals (40,050) Softs (51,359) Total unrealized depreciation on open futures contracts (522,665) Net unrealized appreciation on open futures contracts $ 187,483 * Assets Options Purchased Energy $ 43,000 Softs 8,625 Total options purchased $ 51,625 ** Liabilities Options Written Energy $ (23,000) Total options written $ (23,000) *** * This amount is in “Net unrealized appreciation on open futures contracts” in the Statements of Financial Condition. ** This amount is in “Options purchased, at fair value” in the Statements of Financial Condition. *** This amount is in “Options written, at fair value” 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 and nine months ended September 30, 2018 and 2017, respectively. Three Months Ended Nine Months Ended Sector 2018 2017 2018 2017 Currencies $ 203,365 $ 363,952 $ (454,761) $ 493,307 Energy 320,492 (173,126) 588,786 (357,316) Grains 74,104 10,579 (40,938) (788,473) Indices (136,782) 288,760 439,405 623,670 Interest Rates U.S. 82,547 (20,734) 60,571 (273,953) Interest Rates Non-U.S. (108,564) (21,170) (72,145) 97,678 Livestock (38,540) (108,608) (92,450) (17,688) Metals 293,060 144,355 199,245 (90,857) Softs (51,341) (101,360) (49,835) (432,264) Total $ 638,341 **** $ 382,648 **** $ 577,878 **** $ (745,896) **** **** This amount is included in “Total trading results” in the Statements of Income and Expenses.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 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 September 30, 2018 Total Level 1 Level 2 Level 3 Assets Futures $ 1,030,836 $ 1,030,836 $ - $ - Total assets $ 1,030,836 $ 1,030,836 $ - $ - Liabilities Futures $ 585,139 $ 585,139 $ - $ - Total liabilities $ 585,139 $ 585,139 $ - $ - December 31, 2017 Total Level 1 Level 2 Level 3 Assets Futures $ 710,148 $ 710,148 $ - $ - Options purchased 51,625 51,625 - - Total assets $ 761,773 $ 761,773 $ - $ - Liabilities Futures $ 522,665 $ 522,665 $ - $ - Options written 23,000 23,000 - - Total liabilities $ 545,665 $ 545,665 $ - $ -

Investment in the Funds

Investment in the Funds	9 Months Ended
	Sep. 30, 2018
Schedule of Investments [Abstract]
Investment in the Funds	6. Investment in the Funds: On September 1, 2012, 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. Cambridge Master permits accounts managed by 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 General Partner is also the general partner of Cambridge Master. Individual and pooled accounts currently managed by Cambridge, including the Partnership, are permitted to be limited partners of Cambridge Master. The General Partner and Cambridge believe that trading through this master/feeder structure promotes efficiency and economy in the trading process. The General Partner and Cambridge have agreed that Cambridge will trade the Partnership’s assets allocated to Cambridge utilizing up to 1.5 times the leverage normally applied to the programs. The amount of leverage may be increased or decreased in the future. However, in no event will the amount of leverage be greater than 2.0 times the amount of assets allocated. On August 1, 2013, 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 August 1, 2016, the Partnership allocated a portion of its assets to Harbour Square, which until December 31, 2017 were managed and traded directly by Harbour Square pursuant to Harbour Square’s Discretionary Energy Program through a trading account in the Partnership’s name. Effective on January 1, 2018, the assets allocated to Harbour Square were transferred into Harbour Square Master, a limited liability company organized under the limited liability company laws of the State of Delaware, through which they are managed and traded by Harbour Square pursuant to the same strategy. Harbour Square Master permits accounts managed by Harbour Square using Harbour Square’s Discretionary Energy Program, a proprietary, discretionary trading system, to invest together in one trading vehicle. The General Partner is the trading manager to Harbour Square Master. Individual and pooled accounts currently managed by Harbour Square, including the Partnership, are permitted to be members of Harbour Square Master. The Trading Manager and Harbour Square believe that trading through this structure promotes efficiency and economy in the trading process. The Trading Manager and Harbour Square have agreed that Harbour Square will trade the Partnership’s assets allocated to Harbour Square Master at a level that is up to 1.5 times the amount of the assets allocated. The amount of leverage may be changed in the future. On February 1, 2017, the Partnership allocated a portion of its assets to AE Capital which were managed and traded directly by AE Capital pursuant to AE Capital’s AE Systematic FX Fund Program through a trading account in the Partnership’s name from March 1, 2017 until January 31, 2018. Effective on February 1, 2018, the assets allocated to AE Capital were transferred into AE Capital Master, a limited liability company organized under the limited liability company laws of the State of Delaware, through which they are managed and traded by AE Capital pursuant to the same strategy. AE Capital Master permits accounts managed by AE Capital using AE Capital’s AE Systematic FX Fund Program, a proprietary systematic strategy, to invest together in one trading vehicle. The General Partner is also the trading manager to AE Capital Master. Individual and pooled accounts currently managed by AE Capital, including the Partnership, 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. Effective January 1, 2013, the assets traded directly by Willowbridge using its wPraxis Futures Trading Approach were invested in Willowbridge Master, a limited partnership organized under the partnership laws of the State of New York. Effective February 28, 2017, the Partnership fully redeemed its investment in Willowbridge Master. The General Partner is not aware of any other material changes to any of the trading programs discussed above or in Note 1, “Organization” during the fiscal quarter ended September 30, 2018. The Funds’ and the Partnership’s trading of futures, forward, swap and option contracts, as 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, 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, the General Partner fees and incentive fees are charged at the Partnership level. Professional fees are borne by the Funds and allocated to the Partnership, and also charged directly at the Partnership level. Clearing fees are borne by the Funds and allocated to the Funds’ limited partners/members, including the Partnership. Clearing fees are also borne by the Partnership directly. At September 30, 2018, the Partnership owned approximately 22.4% of SECOR Master, 3.1% of Cambridge Master, 43.4% of Harbour Square Master and 20.4% of AE Capital Master. Prior to the close of business on December 31, 2017, the Partnership owned approximately 27.2% of SECOR Master and 4.9% of Cambridge 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: September 30, 2018 Total Assets Total Liabilities Total Capital SECOR Master $ 39,273,036 $ 1,839,857 $ 37,433,179 Cambridge Master 29,721,311 3,245,790 26,475,521 Harbour Square Master 23,661,573 2,625,728 21,035,845 AE Capital Master 23,496,945 629,767 22,867,178 December 31, 2017 Total Assets Total Liabilities Total Capital SECOR Master $ 22,831,484 $ 18,066,303 $ 4,765,181 Cambridge Master 31,063,463 4,384,639 26,678,824 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 September 30, 2018 Net Investment Income (Loss) Total Trading Results Net Income (Loss) SECOR Master $ (29,321) $ (1,466,273) $ (1,495,594) Cambridge Master 102,313 (3,445,315) (3,343,002) Harbour Square Master 68,750 (1,067,004) (998,254) AE Capital Master 67,934 (657,511) (589,577) For the nine months ended September 30, 2018 Net Investment Total Trading Net Income (Loss) SECOR Master $ (127,027) $ 3,786,220 $ 3,659,193 Cambridge Master 286,968 (1,952,669) (1,665,701) Harbour Square Master 210,173 (190,943) 19,230 AE Capital Master (a) 157,473 (1,471,268) (1,313,795) For the three months ended September 30, 2017 Net Investment Total Trading Net Income (Loss) SECOR Master $ 8,727 $ (2,449,650) $ (2,440,923) Cambridge Master 42,206 (1,947,071) (1,904,865) For the nine months ended September 30, 2017 Net Investment Total Trading Net Income (Loss) SECOR Master $ (5,327) $ (1,070,201) $ (1,075,528) Cambridge Master 105,724 3,712,345 3,818,069 Willowbridge Master (b) 155,028 (5,302,674) (5,147,646) (a) From February 1, 2018, the date the Partnership invested into AE Capital Master, through September 30, 2018. (b) From January 1, 2017 through February 28, 2017, the date the Partnership fully redeemed its interest in Willowbridge Master. Summarized information reflecting the Partnership’s investments in and the Partnership’s pro-rata September 30, 2018 For the three months ended September 30, 2018 % of Expenses Net Funds Partners’ Fair Value Income (Loss) Clearing Fees Professional Income Investment Redemptions SECOR Master 24.18 % $ 8,390,584 $ (302,235) $ 34,198 $ 3,833 $ (340,266) Commodity Portfolio Monthly Cambridge Master 2.36 % 818,353 (145,004) 981 705 (146,690) Commodity Portfolio Monthly Harbour Square Master 26.33 % 9,134,952 (374,255) 14,221 6,865 (395,341) Commodity Portfolio Monthly AE Capital Master 13.44 % 4,666,362 (116,901) 6,090 3,716 (126,707) Commodity Portfolio Monthly Total $ 23,010,251 $ (938,395) $ 55,490 $ 15,119 $ (1,009,004) September 30, 2018 For the nine months ended September 30, 2018 % of Expenses Net Funds Partners’ Fair Value Income (Loss) Clearing Fees Professional Income (Loss) Investment Redemptions SECOR Master 24.18 % $ 8,390,584 $ 682,713 $ 86,574 $ 9,914 $ 586,225 Commodity Portfolio Monthly Cambridge Master 2.36 % 818,353 (34,877) 2,382 1,664 (38,923) Commodity Portfolio Monthly Harbour Square Master 26.33 % 9,134,952 63,655 27,372 20,099 16,184 Commodity Portfolio Monthly AE Capital Master (a) 13.44 % 4,666,362 (248,208) 11,748 8,876 (268,832) Commodity Portfolio Monthly Total $ 23,010,251 $ 463,283 $ 128,076 $ 40,553 $ 294,654 December 31, 2017 For the three months ended September 30, 2017 % of Expenses Net Funds Partners’ Fair Value Income (Loss) Clearing Fees Professional Income (Loss) Investment Redemptions SECOR Master 11.43 % $ 4,770,275 $ (812,825) $ 44,788 $ 5,773 $ (863,386) Commodity Portfolio Monthly Cambridge Master 0.87 % 362,125 (239,930) 3,572 1,867 (245,369) Commodity Portfolio Monthly Total $ 5,132,400 $ (1,052,755) $ 48,360 $ 7,640 $ (1,108,755) December 31, 2017 For the nine months ended September 30, 2017 % of Expenses Net Funds Partners’ Fair Value Income (Loss) Clearing Fees Professional Income (Loss) Investment Redemptions SECOR Master 11.43 % $ 4,770,275 $ (124,335) $ 137,951 $ 19,682 $ (281,968) Commodity Portfolio Monthly Cambridge Master 0.87 % 362,125 968,844 13,517 7,812 947,515 Commodity Portfolio Monthly Willowbridge Master (b) - % - (11,539) 612 62 (12,213) Commodity Portfolio Monthly Total $ 5,132,400 $ 832,970 $ 152,080 $ 27,556 $ 653,334 (a) From February 1, 2018, the date the Partnership invested into AE Capital Master, through September 30, 2018. (b) From January 1, 2017 through February 28, 2017, the date the Partnership fully redeemed its interest in Willowbridge Master.

Financial Instrument Risks

Financial Instrument Risks	9 Months Ended
	Sep. 30, 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. 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 a market risk equal to the value of 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 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. The 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	9 Months Ended
	Sep. 30, 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 that described below, there were no subsequent events requiring adjustment to or disclosure in the financial statements. Effective October 1, 2018, the Partnership, the General Partner, Cambridge, and Mesirow Financial International UK Limited (“Mesirow”) entered into a novation, assignment and assumption agreement, dated September 28, 2018, pursuant to which Cambridge transfers 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 October 1, 2013, as amended January 1, 2018 (collectively, the “Initial Advisory Agreement”), to Mesirow. As of and after October 1, 2018, Mesirow has undertaken to perform the 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. On October 10, 2018, Cambridge, Mesirow, Cambridge Master and JPMorgan entered into an amendment and assignment agreement, dated October 10, 2018 (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, dated as of October 10, 2018 (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. Effective as of October 31, 2018, Mesirow ceased to act as a commodity trading advisor to the Partnership. Effective on or about November 1, 2018, the Partnership allocated a portion of its assets to Katonah Capital Partners Management, LLC (“Katonah”), which is managed and traded by Katonah pursuant to Katonah’s Laplace Program.

Basis of Presentation and Sum_2

Basis of Presentation and Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 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 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.
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.”

Financial Highlights (Tables)

Financial Highlights (Tables)	9 Months Ended
	Sep. 30, 2018
Investment Company [Abstract]
Financial Highlights	Financial highlights for the limited partner Classes as a whole for the three and nine months ended September 30, 2018 and 2017 were as follows: Three Months Ended September 30, Nine Months Ended September 30, 2018 2017 2018 2017 Class A Class Z Class A Class A Class Z Class A Per Redeemable Unit Performance (for a unit outstanding throughout the period):* Net realized and unrealized gains (losses) $ (13.61) $ (11.32) $ (16.76) $ 20.43 $ 16.71 $ (4.72) Net investment loss (13.31) (6.21) (15.66) (39.90) (18.43) (50.56) Increase (decrease) for the period (26.92) (17.53) (32.42) (19.47) (1.72) (55.28) Net asset value per Redeemable Unit, beginning of period 1,169.63 969.12 1,231.43 1,162.18 953.31 1,254.29 Net asset value per Redeemable Unit, end of period $ 1,142.71 $ 951.59 $ 1,199.01 $ 1,142.71 $ 951.59 $ 1,199.01 Three Months Ended September 30, Nine Months Ended September 30, 2018 2017 2018 2017 Class A Class Z Class A Class A Class Z Class A Ratios to Average Limited Partners’ Capital:** Net investment loss *** (4.6) % (2.5) % (5.1) % (4.6) % (2.6) % (5.4) % Operating expenses 6.3 % 4.2 % 5.9 % 6.1 % 4.1 % 6.0 % Incentive fees - % - % 0.1 % - % - % 0.2 % Total expenses 6.3 % 4.2 % 6.0 % 6.1 % 4.1 % 6.2 % Total return: Total return before incentive fees (2.3) % (1.8) % (2.5) % (1.7) % (0.2) % (4.2) % Incentive fees - % - % (0.1) % - % - % (0.2) % Total return after incentive fees (2.3) % (1.8) % (2.6) % (1.7) % (0.2) % (4.4) % * 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.

Trading Activities (Tables)

Trading Activities (Tables)	9 Months Ended
	Sep. 30, 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 agreements or similar arrangements as of September 30, 2018 and December 31, 2017, respectively. September 30, 2018 Gross Gross Amounts Offset in the Statements of Amounts Statements of Gross Amounts Not Offset in the Net Financial Cash Collateral Pledged* Assets Futures $ 1,030,836 $ (585,139) $ 445,697 $ - $ - $ 445,697 Total assets $ 1,030,836 $ (585,139) $ 445,697 $ - $ - $ 445,697 Liabilities Futures $ (585,139) $ 585,139 $ - $ - $ - $ - Total liabilities $ (585,139) $ 585,139 $ - $ - $ - $ - Net Fair Value $ 445,697 * December 31, 2017 Gross Gross Amounts Statements of Amounts Presented Statements of Gross Amounts Not Offset in the Net Amount Financial Cash Collateral Assets Futures $ 710,148 $ (522,665) $ 187,483 $ - $ - $ 187,483 Total assets $ 710,148 $ (522,665) $ 187,483 $ - $ - $ 187,483 Liabilities Futures $ (522,665) $ 522,665 $ - $ - $ - $ - Total liabilities $ (522,665) $ 522,665 $ - $ - $ - $ - Net Fair Value $ 187,483 * * 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, Forward and Option Contracts Traded	The following tables indicate the gross fair values of derivative instruments of futures and option contracts, as applicable, held directly by the Partnership as separate assets and liabilities as of September 30, 2018 and December 31, 2017, respectively. September 30, 2018 Assets Futures Contracts Currencies $ 128,424 Energy 155,410 Grains 59,813 Indices 415,281 Interest Rates U.S. 106,828 Interest Rates Non-U.S. 89,689 Livestock 7,460 Metals 57,030 Softs 10,901 Total unrealized appreciation on open futures contracts 1,030,836 Liabilities Futures Contracts Currencies (51,543 ) Energy (23,110 ) Grains (96,767 ) Indices (195,500 ) Interest Rates U.S. (2,938 ) Interest Rates Non-U.S. (105,510 ) Livestock (1,360 ) Metals (43,215 ) Softs (65,196 ) Total unrealized depreciation on open futures contracts (585,139 ) Net unrealized appreciation on open futures contracts $ 445,697 * * This amount is in “Net unrealized appreciation on open futures contracts” in the Statements of Financial Condition. December 31, 2017 Assets Futures Contracts Currencies $ 94,211 Energy 214,439 Grains 69,673 Indices 62,560 Interest Rates U.S. 14,844 Interest Rates Non-U.S. 16,572 Livestock 144,163 Metals 50,653 Softs 43,033 Total unrealized appreciation on open futures contracts 710,148 Liabilities Futures Contracts Currencies (60,036) Energy (39,440) Grains (17,591) Indices (147,661) Interest Rates U.S. (5,813) Interest Rates Non-U.S. (22,410) Livestock (138,305) Metals (40,050) Softs (51,359) Total unrealized depreciation on open futures contracts (522,665) Net unrealized appreciation on open futures contracts $ 187,483 * Assets Options Purchased Energy $ 43,000 Softs 8,625 Total options purchased $ 51,625 ** Liabilities Options Written Energy $ (23,000) Total options written $ (23,000) *** * This amount is in “Net unrealized appreciation on open futures contracts” in the Statements of Financial Condition. ** This amount is in “Options purchased, at fair value” in the Statements of Financial Condition. *** This amount is in “Options written, at fair value” 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 and nine months ended September 30, 2018 and 2017, respectively. Three Months Ended Nine Months Ended Sector 2018 2017 2018 2017 Currencies $ 203,365 $ 363,952 $ (454,761) $ 493,307 Energy 320,492 (173,126) 588,786 (357,316) Grains 74,104 10,579 (40,938) (788,473) Indices (136,782) 288,760 439,405 623,670 Interest Rates U.S. 82,547 (20,734) 60,571 (273,953) Interest Rates Non-U.S. (108,564) (21,170) (72,145) 97,678 Livestock (38,540) (108,608) (92,450) (17,688) Metals 293,060 144,355 199,245 (90,857) Softs (51,341) (101,360) (49,835) (432,264) Total $ 638,341 **** $ 382,648 **** $ 577,878 **** $ (745,896) **** **** This amount is included in “Total trading results” in the Statements of Income and Expenses.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2018
Fair Value Disclosures [Abstract]
Summary of Assets and Liabilities Measured at Fair Value	September 30, 2018 Total Level 1 Level 2 Level 3 Assets Futures $ 1,030,836 $ 1,030,836 $ - $ - Total assets $ 1,030,836 $ 1,030,836 $ - $ - Liabilities Futures $ 585,139 $ 585,139 $ - $ - Total liabilities $ 585,139 $ 585,139 $ - $ - December 31, 2017 Total Level 1 Level 2 Level 3 Assets Futures $ 710,148 $ 710,148 $ - $ - Options purchased 51,625 51,625 - - Total assets $ 761,773 $ 761,773 $ - $ - Liabilities Futures $ 522,665 $ 522,665 $ - $ - Options written 23,000 23,000 - - Total liabilities $ 545,665 $ 545,665 $ - $ -

Investment in the Funds (Tables

Investment in the Funds (Tables)	9 Months Ended
	Sep. 30, 2018
Schedule of Investments [Abstract]
Assets, Liabilities and Partners'/Members' Capital of Funds	Summarized information reflecting the total assets, liabilities and partners’/members’ capital of the Funds is shown in the following tables: September 30, 2018 Total Assets Total Liabilities Total Capital SECOR Master $ 39,273,036 $ 1,839,857 $ 37,433,179 Cambridge Master 29,721,311 3,245,790 26,475,521 Harbour Square Master 23,661,573 2,625,728 21,035,845 AE Capital Master 23,496,945 629,767 22,867,178 December 31, 2017 Total Assets Total Liabilities Total Capital SECOR Master $ 22,831,484 $ 18,066,303 $ 4,765,181 Cambridge Master 31,063,463 4,384,639 26,678,824
Net Investment Income (Loss), Total Trading Results and Net Income (Loss) for 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 September 30, 2018 Net Investment Income (Loss) Total Trading Results Net Income (Loss) SECOR Master $ (29,321) $ (1,466,273) $ (1,495,594) Cambridge Master 102,313 (3,445,315) (3,343,002) Harbour Square Master 68,750 (1,067,004) (998,254) AE Capital Master 67,934 (657,511) (589,577) For the nine months ended September 30, 2018 Net Investment Total Trading Net Income (Loss) SECOR Master $ (127,027) $ 3,786,220 $ 3,659,193 Cambridge Master 286,968 (1,952,669) (1,665,701) Harbour Square Master 210,173 (190,943) 19,230 AE Capital Master (a) 157,473 (1,471,268) (1,313,795) For the three months ended September 30, 2017 Net Investment Total Trading Net Income (Loss) SECOR Master $ 8,727 $ (2,449,650) $ (2,440,923) Cambridge Master 42,206 (1,947,071) (1,904,865) For the nine months ended September 30, 2017 Net Investment Total Trading Net Income (Loss) SECOR Master $ (5,327) $ (1,070,201) $ (1,075,528) Cambridge Master 105,724 3,712,345 3,818,069 Willowbridge Master (b) 155,028 (5,302,674) (5,147,646) (a) From February 1, 2018, the date the Partnership invested into AE Capital Master, through September 30, 2018. (b) From January 1, 2017 through February 28, 2017, the date the Partnership fully redeemed its interest in Willowbridge Master.
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 September 30, 2018 For the three months ended September 30, 2018 % of Expenses Net Funds Partners’ Fair Value Income (Loss) Clearing Fees Professional Income Investment Redemptions SECOR Master 24.18 % $ 8,390,584 $ (302,235) $ 34,198 $ 3,833 $ (340,266) Commodity Portfolio Monthly Cambridge Master 2.36 % 818,353 (145,004) 981 705 (146,690) Commodity Portfolio Monthly Harbour Square Master 26.33 % 9,134,952 (374,255) 14,221 6,865 (395,341) Commodity Portfolio Monthly AE Capital Master 13.44 % 4,666,362 (116,901) 6,090 3,716 (126,707) Commodity Portfolio Monthly Total $ 23,010,251 $ (938,395) $ 55,490 $ 15,119 $ (1,009,004) September 30, 2018 For the nine months ended September 30, 2018 % of Expenses Net Funds Partners’ Fair Value Income (Loss) Clearing Fees Professional Income (Loss) Investment Redemptions SECOR Master 24.18 % $ 8,390,584 $ 682,713 $ 86,574 $ 9,914 $ 586,225 Commodity Portfolio Monthly Cambridge Master 2.36 % 818,353 (34,877) 2,382 1,664 (38,923) Commodity Portfolio Monthly Harbour Square Master 26.33 % 9,134,952 63,655 27,372 20,099 16,184 Commodity Portfolio Monthly AE Capital Master (a) 13.44 % 4,666,362 (248,208) 11,748 8,876 (268,832) Commodity Portfolio Monthly Total $ 23,010,251 $ 463,283 $ 128,076 $ 40,553 $ 294,654 December 31, 2017 For the three months ended September 30, 2017 % of Expenses Net Funds Partners’ Fair Value Income (Loss) Clearing Fees Professional Income (Loss) Investment Redemptions SECOR Master 11.43 % $ 4,770,275 $ (812,825) $ 44,788 $ 5,773 $ (863,386) Commodity Portfolio Monthly Cambridge Master 0.87 % 362,125 (239,930) 3,572 1,867 (245,369) Commodity Portfolio Monthly Total $ 5,132,400 $ (1,052,755) $ 48,360 $ 7,640 $ (1,108,755) December 31, 2017 For the nine months ended September 30, 2017 % of Expenses Net Funds Partners’ Fair Value Income (Loss) Clearing Fees Professional Income (Loss) Investment Redemptions SECOR Master 11.43 % $ 4,770,275 $ (124,335) $ 137,951 $ 19,682 $ (281,968) Commodity Portfolio Monthly Cambridge Master 0.87 % 362,125 968,844 13,517 7,812 947,515 Commodity Portfolio Monthly Willowbridge Master (b) - % - (11,539) 612 62 (12,213) Commodity Portfolio Monthly Total $ 5,132,400 $ 832,970 $ 152,080 $ 27,556 $ 653,334 (a) From February 1, 2018, the date the Partnership invested into AE Capital Master, through September 30, 2018. (b) From January 1, 2017 through February 28, 2017, the date the Partnership fully redeemed its interest in Willowbridge Master.

Organization - Additional Infor

Organization - Additional Information (Detail) - $ / shares	9 Months Ended
	Sep. 30, 2018	Dec. 31, 2017	Aug. 05, 2004
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			20,872
Redeemable Units per share			$ 1,000
Maximum number of Redeemable Units sold by the Partnership	0
Morgan Stanley Wealth Management [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Management fees description	The Partnership has entered into a selling agreement with Morgan Stanley Smith Barney LLC, doing business as Morgan Stanley Wealth Management (“Morgan Stanley Wealth Management”) (the “Selling Agreement”). Under the Selling Agreement, the Partnership pays Morgan Stanley Wealth Management 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.
Class D Redeemable Units [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Limited Partner Capital Account Redeemable Unit outstanding	0
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 A Redeemable Units [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Limited Partner Capital Account Redeemable Unit outstanding	29,975.6460	35,490.8260
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%
Maximum [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Percentage of partnership assets allocated	10.00%

Basis of Presentation and Sum_3

Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)	9 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Accounting Policies [Abstract]
Cash denominated in foreign currencies	$ (387,659)	$ (72,504)
Cash denominated in foreign currencies, proceeds	389,062	71,514
Restricted cash held for margin	2,430,010	$ 2,501,707
Uncertain tax position	$ 0
Open tax year	2014 2015 2016 2017

Financial Highlights - Schedule

Financial Highlights - Schedule of Changes in Net Asset Value (Detail) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Class A Redeemable Units [Member]
Per Redeemable Unit Performance (for a unit outstanding throughout the period):
Net realized and unrealized gains (losses)	$ (13.61)	$ (16.76)	$ 20.43	$ (4.72)
Net investment loss	(13.31)	(15.66)	(39.90)	(50.56)
Increase (decrease) for the period	(26.92)	(32.42)	(19.47)	(55.28)
Net asset value per Redeemable Unit, beginning of period	1,169.63	1,231.43	1,162.18	1,254.29
Net asset value per Redeemable Unit, end of period	1,142.71	$ 1,199.01	1,142.71	$ 1,199.01
Class Z Redeemable Units [Member]
Per Redeemable Unit Performance (for a unit outstanding throughout the period):
Net realized and unrealized gains (losses)	(11.32)		16.71
Net investment loss	(6.21)		(18.43)
Increase (decrease) for the period	(17.53)		(1.72)
Net asset value per Redeemable Unit, beginning of period	969.12		953.31
Net asset value per Redeemable Unit, end of period	$ 951.59		$ 951.59

Financial Highlights - Ratios t

Financial Highlights - Ratios to Average Net Assets (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Class A Redeemable Units [Member]
Ratios to Average Limited Partners' Capital:
Net investment loss	(4.60%)	(5.10%)	(4.60%)	(5.40%)
Operating expenses	6.30%	5.90%	6.10%	6.00%
Incentive fees		0.10%		0.20%
Total expenses	6.30%	6.00%	6.10%	6.20%
Total return:
Total return before incentive fees	(2.30%)	(2.50%)	(1.70%)	(4.20%)
Incentive fees		(0.10%)		(0.20%)
Total return after incentive fees	(2.30%)	(2.60%)	(1.70%)	(4.40%)
Class Z Redeemable Units [Member]
Ratios to Average Limited Partners' Capital:
Net investment loss	(2.50%)		(2.60%)
Operating expenses	4.20%		4.10%
Total expenses	4.20%		4.10%
Total return:
Total return before incentive fees	(1.80%)		(0.20%)
Total return after incentive fees	(1.80%)		(0.20%)

Trading Activities - Additional

Trading Activities - Additional Information (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2018USD ($)Contracts	Sep. 30, 2017USD ($)Contracts	Sep. 30, 2018USD ($)Contracts	Sep. 30, 2017USD ($)Contracts
Futures Contracts [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Average number of derivative contracts held	1,773	1,209	1,663	2,014
Options Contracts [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Average number of derivative contracts held	0	97	241	59
Forward Contracts [Member] | Currencies [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Average notional value of derivative | $	$ 0	$ 89,134,286	$ 4,680,507	$ 62,032,845

Trading Activities - Summary of

Trading Activities - Summary of Gross and Net Amounts Recognized Relating to Assets and Liabilities of Partnership's Derivatives (Detail) - USD ($)	Sep. 30, 2018	Dec. 31, 2017
Derivative [Line Items]
Gross Amounts Recognized, Assets	$ 1,030,836	$ 710,148
Gross Amounts Offset in the Statements of Financial Condition, Assets	(585,139)	(522,665)
Amounts Presented in the Statements of Financial Condition, Assets	445,697	187,483
Financial Instruments, Assets	0	0
Cash Collateral Received/Pledged, Assets	0	0
Net Amount, Assets	445,697	187,483
Gross Amounts Recognized, Liabilities	(585,139)	(522,665)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	585,139	522,665
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
Net Fair Value	445,697	187,483
Futures Contracts [Member]
Derivative [Line Items]
Gross Amounts Recognized, Assets	1,030,836	710,148
Gross Amounts Offset in the Statements of Financial Condition, Assets	(585,139)	(522,665)
Amounts Presented in the Statements of Financial Condition, Assets	445,697	187,483
Financial Instruments, Assets	0	0
Cash Collateral Received/Pledged, Assets	0	0
Net Amount, Assets	445,697	187,483
Gross Amounts Recognized, Liabilities	(585,139)	(522,665)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	585,139	522,665
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

Trading Activities - Gross Fair

Trading Activities - Gross Fair Values of Derivative Instruments of Futures and Forward Contracts Traded (Detail) - USD ($)	Sep. 30, 2018	Dec. 31, 2017
Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	$ 1,030,836	$ 710,148
Total unrealized depreciation on open contracts	(585,139)	(522,665)
Net unrealized appreciation (depreciation) on open contracts	445,697	187,483
Futures Contracts [Member] | Long [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	(102,651)	140,143
Futures Contracts [Member] | Short [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	548,348	47,340
Options Contracts [Member] | Long [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts		51,625
Options Contracts [Member] | Short [Member]
Derivative [Line Items]
Total unrealized depreciation on open contracts		(23,000)
Currencies [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	128,424	94,211
Total unrealized depreciation on open contracts	(51,543)	(60,036)
Currencies [Member] | Futures Contracts [Member] | Long [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	(23,965)	70,786
Currencies [Member] | Futures Contracts [Member] | Short [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	100,846	(36,611)
Energy [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	155,410	214,439
Total unrealized depreciation on open contracts	(23,110)	(39,440)
Energy [Member] | Futures Contracts [Member] | Long [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	154,500	213,269
Energy [Member] | Futures Contracts [Member] | Short [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	(22,200)	(38,270)
Energy [Member] | Options Contracts [Member] | Long [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts		43,000
Energy [Member] | Options Contracts [Member] | Short [Member]
Derivative [Line Items]
Total unrealized depreciation on open contracts		(23,000)
Grains [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	59,813	69,673
Total unrealized depreciation on open contracts	(96,767)	(17,591)
Grains [Member] | Futures Contracts [Member] | Long [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	(70,708)	(14,200)
Grains [Member] | Futures Contracts [Member] | Short [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	33,754	66,282
Indices [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	415,281	62,560
Total unrealized depreciation on open contracts	(195,500)	(147,661)
Indices [Member] | Futures Contracts [Member] | Long [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	(36,973)	(22,330)
Indices [Member] | Futures Contracts [Member] | Short [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	256,754	(62,771)
Interest Rates U.S. [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	106,828	14,844
Total unrealized depreciation on open contracts	(2,938)	(5,813)
Interest Rates U.S. [Member] | Futures Contracts [Member] | Short [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	103,890	9,031
Interest Rates Non-U.S. [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	89,689	16,572
Total unrealized depreciation on open contracts	(105,510)	(22,410)
Interest Rates Non-U.S. [Member] | Futures Contracts [Member] | Long [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	(93,253)	(19,505)
Interest Rates Non-U.S. [Member] | Futures Contracts [Member] | Short [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	77,432	13,667
Livestock [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	7,460	144,163
Total unrealized depreciation on open contracts	(1,360)	(138,305)
Livestock [Member] | Futures Contracts [Member] | Long [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	7,460	(133,257)
Livestock [Member] | Futures Contracts [Member] | Short [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	(1,360)	139,115
Metals [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	57,030	50,653
Total unrealized depreciation on open contracts	(43,215)	(40,050)
Metals [Member] | Futures Contracts [Member] | Long [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts		50,653
Metals [Member] | Futures Contracts [Member] | Short [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	13,815	(40,050)
Softs [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	10,901	43,033
Total unrealized depreciation on open contracts	(65,196)	(51,359)
Softs [Member] | Futures Contracts [Member] | Long [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	(39,712)	(5,273)
Softs [Member] | Futures Contracts [Member] | Short [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	$ (14,583)	(3,053)
Softs [Member] | Options Contracts [Member] | Long [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts		$ 8,625

Trading Activities - Trading Ga

Trading Activities - Trading Gains and Losses by Market Sector on Derivative Instruments Traded (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Derivative [Line Items]
Total trading results	$ 638,341	$ 382,648	$ 577,878	$ (745,896)
Currencies [Member]
Derivative [Line Items]
Total trading results	203,365	363,952	(454,761)	493,307
Energy [Member]
Derivative [Line Items]
Total trading results	320,492	(173,126)	588,786	(357,316)
Grains [Member]
Derivative [Line Items]
Total trading results	74,104	10,579	(40,938)	(788,473)
Indices [Member]
Derivative [Line Items]
Total trading results	(136,782)	288,760	439,405	623,670
Interest Rates U.S. [Member]
Derivative [Line Items]
Total trading results	82,547	(20,734)	60,571	(273,953)
Interest Rates Non-U.S. [Member]
Derivative [Line Items]
Total trading results	(108,564)	(21,170)	(72,145)	97,678
Livestock [Member]
Derivative [Line Items]
Total trading results	(38,540)	(108,608)	(92,450)	(17,688)
Metals [Member]
Derivative [Line Items]
Total trading results	293,060	144,355	199,245	(90,857)
Softs [Member]
Derivative [Line Items]
Total trading results	$ (51,341)	$ (101,360)	$ (49,835)	$ (432,264)

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail) - DerivativeInstrument	Sep. 30, 2018	Dec. 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

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Assets and Liabilities Measured at Fair Value (Detail) - USD ($)	Sep. 30, 2018	Dec. 31, 2017
Assets
Total assets	$ 1,030,836	$ 761,773
Liabilities
Total liabilities	585,139	545,665
Futures Contracts [Member]
Assets
Total assets	1,030,836	710,148
Liabilities
Total liabilities	585,139	522,665
Options Contracts [Member] | Long [Member]
Assets
Total assets		51,625
Options Contracts [Member] | Short [Member]
Liabilities
Total liabilities		23,000
Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1) [Member]
Assets
Total assets	1,030,836	761,773
Liabilities
Total liabilities	585,139	545,665
Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1) [Member] | Futures Contracts [Member]
Assets
Total assets	1,030,836	710,148
Liabilities
Total liabilities	$ 585,139	522,665
Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1) [Member] | Options Contracts [Member] | Long [Member]
Assets
Total assets		51,625
Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1) [Member] | Options Contracts [Member] | Short [Member]
Liabilities
Total liabilities		$ 23,000

Investment in the Funds - Addit

Investment in the Funds - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
SECOR Master Fund L.P. [Member]
Investment [Line Items]
Percentage owned by partnership	22.40%	27.20%
Cambridge Master Fund L.P. [Member]
Investment [Line Items]
Percentage owned by partnership	3.10%	4.90%
CMF Harbour Square Master Fund LLC [Member]
Investment [Line Items]
Maximum amount of partnership assets allocated to trading advisor	One and a half times
Percentage owned by partnership	43.40%
CMF AE Capital Master Fund LLC [Member]
Investment [Line Items]
Percentage owned by partnership	20.40%
Maximum [Member] | SECOR Master Fund L.P. [Member]
Investment [Line Items]
Maximum amount of partnership assets allocated to trading advisor	1.5 times
Maximum [Member] | Cambridge [Member]
Investment [Line Items]
Maximum amount of partnership assets allocated to trading advisor	2.0 times
Minimum [Member] | Cambridge [Member]
Investment [Line Items]
Maximum amount of partnership assets allocated to trading advisor	1.5 times

Investment in the Funds - Asset

Investment in the Funds - Assets, Liabilities and Partners'/Members' Capital of Funds (Detail) - USD ($)	Sep. 30, 2018	Dec. 31, 2017	Sep. 30, 2017	Dec. 31, 2016
Investment Holdings [Line Items]
Total Assets	$ 35,675,749	$ 44,270,612
Total Liabilities	975,881	2,528,000
Total Capital	34,699,868	41,742,612	$ 48,687,375	$ 63,890,718
SECOR Master Fund L.P. [Member]
Investment Holdings [Line Items]
Total Assets	39,273,036	22,831,484
Total Liabilities	1,839,857	18,066,303
Total Capital	37,433,179	4,765,181
Cambridge Master Fund L.P. [Member]
Investment Holdings [Line Items]
Total Assets	29,721,311	31,063,463
Total Liabilities	3,245,790	4,384,639
Total Capital	26,475,521	$ 26,678,824
CMF Harbour Square Master Fund LLC [Member]
Investment Holdings [Line Items]
Total Assets	23,661,573
Total Liabilities	2,625,728
Total Capital	21,035,845
CMF AE Capital Master Fund LLC [Member]
Investment Holdings [Line Items]
Total Assets	23,496,945
Total Liabilities	629,767
Total Capital	$ 22,867,178

Investment in the Funds - Net I

Investment in the Funds - Net Investment Income (Loss), Total Trading Results and Net Income (Loss) for Funds (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Investment Holdings [Line Items]
Net Investment Income (Loss)	$ (422,901)	$ (662,303)	$ (1,333,897)	$ (2,344,978)
Total Trading Results	(411,457)	(704,952)	770,334	(23,186)
Net income (loss)	(834,358)	(1,367,255)	(563,563)	(2,368,164)
SECOR Master Fund L.P. [Member]
Investment Holdings [Line Items]
Net Investment Income (Loss)	(29,321)	8,727	(127,027)	(5,327)
Total Trading Results	(1,466,273)	(2,449,650)	3,786,220	(1,070,201)
Net income (loss)	(1,495,594)	(2,440,923)	3,659,193	(1,075,528)
Cambridge Master Fund L.P. [Member]
Investment Holdings [Line Items]
Net Investment Income (Loss)	102,313	42,206	286,968	105,724
Total Trading Results	(3,445,315)	(1,947,071)	(1,952,669)	3,712,345
Net income (loss)	(3,343,002)	$ (1,904,865)	(1,665,701)	3,818,069
CMF Harbour Square Master Fund LLC [Member]
Investment Holdings [Line Items]
Net Investment Income (Loss)	68,750		210,173
Total Trading Results	(1,067,004)		(190,943)
Net income (loss)	(998,254)		19,230
CMF AE Capital Master Fund LLC [Member]
Investment Holdings [Line Items]
Net Investment Income (Loss)	67,934		157,473
Total Trading Results	(657,511)		(1,471,268)
Net income (loss)	$ (589,577)		$ (1,313,795)
CMF Willowbridge Master Fund L.P. [Member]
Investment Holdings [Line Items]
Net Investment Income (Loss)				155,028
Total Trading Results				(5,302,674)
Net income (loss)				$ (5,147,646)

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) (Detail) - USD ($)		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Investment Holdings [Line Items]
% of Partners' Capital		66.31%		66.31%		12.30%
Fair Value	[1]	$ 23,010,251		$ 23,010,251		$ 5,132,400
Income (Loss)		(411,457)	$ (704,952)	770,334	$ (23,186)
Expenses, Clearing Fees		25,251	46,563	120,587	159,637
Expenses, Professional fees		92,789	89,930	253,233	277,834
Net income (loss)		$ (834,358)	(1,367,255)	$ (563,563)	(2,368,164)
SECOR Master Fund L.P. [Member]
Investment Holdings [Line Items]
% of Partners' Capital		24.18%		24.18%		11.43%
Fair Value		$ 8,390,584		$ 8,390,584		$ 4,770,275
Cambridge Master Fund L.P. [Member]
Investment Holdings [Line Items]
% of Partners' Capital		2.36%		2.36%		0.87%
Fair Value		$ 818,353		$ 818,353		$ 362,125
CMF Harbour Square Master Fund LLC [Member]
Investment Holdings [Line Items]
% of Partners' Capital		26.33%		26.33%
Fair Value		$ 9,134,952		$ 9,134,952
CMF AE Capital Master Fund LLC [Member]
Investment Holdings [Line Items]
% of Partners' Capital		13.44%		13.44%
Fair Value		$ 4,666,362		$ 4,666,362
Investment in Funds [Member]
Investment Holdings [Line Items]
Income (Loss)		(938,395)	(1,052,755)	463,283	832,970
Expenses, Clearing Fees		55,490	48,360	128,076	152,080
Expenses, Professional fees		15,119	7,640	40,553	27,556
Net income (loss)		(1,009,004)	(1,108,755)	294,654	653,334
Investment in Funds [Member] | Commodity [Member] | SECOR Master Fund L.P. [Member]
Investment Holdings [Line Items]
Income (Loss)		(302,235)	(812,825)	682,713	(124,335)
Expenses, Clearing Fees		34,198	44,788	86,574	137,951
Expenses, Professional fees		3,833	5,773	9,914	19,682
Net income (loss)		$ (340,266)	(863,386)	$ 586,225	(281,968)
Investment Objective		Commodity Portfolio		Commodity Portfolio
Redemptions Permitted		Monthly		Monthly
Investment in Funds [Member] | Commodity [Member] | Cambridge Master Fund L.P. [Member]
Investment Holdings [Line Items]
Income (Loss)		$ (145,004)	(239,930)	$ (34,877)	968,844
Expenses, Clearing Fees		981	3,572	2,382	13,517
Expenses, Professional fees		705	1,867	1,664	7,812
Net income (loss)		$ (146,690)	$ (245,369)	$ (38,923)	947,515
Investment Objective		Commodity Portfolio		Commodity Portfolio
Redemptions Permitted		Monthly		Monthly
Investment in Funds [Member] | Commodity [Member] | CMF Harbour Square Master Fund LLC [Member]
Investment Holdings [Line Items]
Income (Loss)		$ (374,255)		$ 63,655
Expenses, Clearing Fees		14,221		27,372
Expenses, Professional fees		6,865		20,099
Net income (loss)		$ (395,341)		$ 16,184
Investment Objective		Commodity Portfolio		Commodity Portfolio
Redemptions Permitted		Monthly		Monthly
Investment in Funds [Member] | Commodity [Member] | CMF AE Capital Master Fund LLC [Member]
Investment Holdings [Line Items]
Income (Loss)		$ (116,901)		$ (248,208)
Expenses, Clearing Fees		6,090		11,748
Expenses, Professional fees		3,716		8,876
Net income (loss)		$ (126,707)		$ (268,832)
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)					(11,539)
Expenses, Clearing Fees					612
Expenses, Professional fees					62
Net income (loss)					$ (12,213)
[1]	Defined in Note 1.

Financial Instrument Risks - Ad

Financial Instrument Risks - Additional Information (Detail)	9 Months Ended
	Sep. 30, 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	12.90%
Maximum [Member] | Credit Concentration Risk [Member] | Partnership's/Funds' Contracts [Member] | Over the Counter [Member]
Concentration Risk [Line Items]
Concentration risk percentage	27.10%