Emerging Cta Portfolio 10-Q 13 Nov 17 2017 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2017	Oct. 31, 2017
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2017
Document Fiscal Year Focus	2,017
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
Class A Redeemable Units [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		38,394.8000
Class Z Redeemable Units [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		0

Statements of Financial Conditi

Statements of Financial Condition - USD ($)		Sep. 30, 2017	Dec. 31, 2016
Assets:
Investment in the Funds, at fair value	[1]	$ 11,590,902	$ 37,830,104
Equity in trading account:
Unrestricted cash		35,477,315	26,587,134
Restricted cash		3,331,543	3,093,030
Net unrealized appreciation on open contracts		8,235	22,275
Options purchased, at fair value (cost $85,853 and $0 at September 30, 2017 and December 31, 2016, respectively)		39,741
Total equity in trading account		38,856,834	29,702,439
Cash at bank		631	217
Interest receivable		29,976	9,112
Total assets		50,478,343	67,541,872
Liabilities:
Net unrealized depreciation on open contracts		164,133
Accrued expenses:
Ongoing selling agent fees		82,781	112,570
Management fees		54,761	82,039
General Partner fees		41,801	56,176
Incentive fees		24,101	120,842
Professional fees		152,783	130,926
Redemptions payable to General Partner			100,000
Redemptions payable to Limited Partners		1,270,608	3,048,601
Total liabilities		1,790,968	3,651,154
Partners' Capital:
Total partners' capital (net asset value)		48,687,375	63,890,718
Total liabilities and partners' capital		50,478,343	67,541,872
Futures Contracts [Member]
Equity in trading account:
Net unrealized appreciation on open contracts			22,275
Liabilities:
Net unrealized depreciation on open contracts		164,133
Class A Redeemable Units [Member]
Partners' Capital:
General Partner			718,402
Limited Partners		48,045,174	63,172,316
Total partners' capital (net asset value)		$ 48,045,174	$ 63,890,718
Net asset value per Redeemable Unit:
Net asset value per Redeemable Unit		$ 1,199.01	$ 1,254.29
Class Z Redeemable Units [Member]
Partners' Capital:
General Partner		$ 642,201
Total partners' capital (net asset value)		$ 642,201
Net asset value per Redeemable Unit:
Net asset value per Redeemable Unit		$ 978.59
Forward Contracts [Member]
Equity in trading account:
Net unrealized appreciation on open contracts		$ 8,235
[1]	Defined in Note 1.

Statements of Financial Condit3

Statements of Financial Condition (Parenthetical) - USD ($)	Sep. 30, 2017	Dec. 31, 2016
Cost of options purchased	$ 85,853	$ 0
Class A Redeemable Units [Member]
General Partner Redeemable Units outstanding	0	572.7556
Limited Partners Redeemable Units outstanding	40,070.6260	50,365.0120
Class Z Redeemable Units [Member]
General Partner Redeemable Units outstanding	656.2520	0

Condensed Schedule of Investmen

Condensed Schedule of Investments		Sep. 30, 2017USD ($)Contract		Dec. 31, 2016USD ($)Contract
Schedule of Investments [Line Items]
Total investment in the Funds	[1]	$ 11,590,902		$ 37,830,104
Futures Contracts [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		(0.34%)		0.03%
Total unrealized appreciation on open contracts		$ 354,618		$ 365,927
Total unrealized depreciation on open contracts		(518,751)		(343,652)
Net unrealized appreciation (depreciation) on open contracts		$ (164,133)		$ 22,275
Futures Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		(0.25%)		0.15%
Net unrealized appreciation (depreciation) on open contracts		$ (123,760)		$ 94,022
Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		(0.09%)		(0.12%)
Net unrealized appreciation (depreciation) on open contracts		$ (40,373)		$ (71,747)
Options Contracts [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 39,741
Options Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		0.08%
Net unrealized appreciation (depreciation) on open contracts		$ 39,741
Currencies [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		1,494		20,075
Total unrealized depreciation on open contracts		$ (99,786)		$ (50,048)
Currencies [Member] | Futures Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		106
% of Partners' Capital		(0.20%)
Net unrealized appreciation (depreciation) on open contracts		$ (98,154)
Currencies [Member] | Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		1		139
% of Partners' Capital		0.00%	[2]	(0.05%)
Net unrealized appreciation (depreciation) on open contracts		$ (138)		$ (29,973)
Energy [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		92,986		10,875
Total unrealized depreciation on open contracts		$ (131,698)		$ (9,015)
Energy [Member] | Futures Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		221		16
% of Partners' Capital		(0.07%)		0.01%
Net unrealized appreciation (depreciation) on open contracts		$ (32,578)		$ 9,070
Energy [Member] | Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		68		6
% of Partners' Capital		(0.01%)		(0.01%)
Net unrealized appreciation (depreciation) on open contracts		$ (6,134)		$ (7,210)
Energy [Member] | Options Contracts [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		39,741
Grains [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		24,781		33,090
Total unrealized depreciation on open contracts		$ (20,678)		$ (87,992)
Grains [Member] | Futures Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		63		61
% of Partners' Capital		0.04%		(0.07%)
Net unrealized appreciation (depreciation) on open contracts		$ 19,735		$ (43,507)
Grains [Member] | Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		131		420
% of Partners' Capital		(0.03%)		(0.02%)
Net unrealized appreciation (depreciation) on open contracts		$ (15,632)		$ (11,395)
Indices [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		150,154		126,605
Total unrealized depreciation on open contracts		$ (138,400)		$ (93,336)
Indices [Member] | Futures Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		181		28
% of Partners' Capital		0.08%		0.04%
Net unrealized appreciation (depreciation) on open contracts		$ 37,528		$ 25,542
Indices [Member] | Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		128		565
% of Partners' Capital		(0.05%)		0.01%
Net unrealized appreciation (depreciation) on open contracts		$ (25,774)		$ 7,727
Interest Rates U.S. [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		1,937		19,212
Total unrealized depreciation on open contracts		$ (1,203)		$ (28,812)
Interest Rates U.S. [Member] | Futures Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		2
% of Partners' Capital	[2]	0.00%
Net unrealized appreciation (depreciation) on open contracts		$ (1,172)
Interest Rates U.S. [Member] | Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		24		86
% of Partners' Capital		0.00%	[2]	(0.02%)
Net unrealized appreciation (depreciation) on open contracts		$ 1,906		$ (9,600)
Interest Rates Non-U.S. [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		21,712		78,347
Total unrealized depreciation on open contracts		$ (3,405)		$ (25,482)
Interest Rates Non-U.S. [Member] | Futures Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		39		268
% of Partners' Capital		0.00%	[2]	0.12%
Net unrealized appreciation (depreciation) on open contracts		$ (1,550)		$ 78,021
Interest Rates Non-U.S. [Member] | Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		68		62
% of Partners' Capital		0.04%		(0.04%)
Net unrealized appreciation (depreciation) on open contracts		$ 19,857		$ (25,156)
Metals [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		6,077		16,503
Total unrealized depreciation on open contracts		$ (78,008)		$ (33,448)
Metals [Member] | Futures Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		50		24
% of Partners' Capital		(0.15%)		(0.02%)
Net unrealized appreciation (depreciation) on open contracts		$ (73,346)		$ (20,805)
Metals [Member] | Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		2		9
% of Partners' Capital		0.00%	[2]	0.01%
Net unrealized appreciation (depreciation) on open contracts		$ 1,415		$ 3,860
Livestock [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		44,752		29,680
Total unrealized depreciation on open contracts		$ (27,232)		$ (2,900)
Livestock [Member] | Futures Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		78		39
% of Partners' Capital		0.06%		0.04%
Net unrealized appreciation (depreciation) on open contracts		$ 29,316		$ 26,780
Livestock [Member] | Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		72
% of Partners' Capital		(0.03%)
Net unrealized appreciation (depreciation) on open contracts		$ (11,796)
Softs [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		10,725		31,540
Total unrealized depreciation on open contracts		$ (18,341)		$ (12,619)
Softs [Member] | Futures Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		64		118
% of Partners' Capital		(0.01%)		0.03%
Net unrealized appreciation (depreciation) on open contracts		$ (3,539)		$ 18,921
Softs [Member] | Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		15
% of Partners' Capital		(0.01%)
Net unrealized appreciation (depreciation) on open contracts		$ (4,077)
Forward Contracts [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		0.02%
Total unrealized appreciation on open contracts		$ 52,983
Total unrealized depreciation on open contracts		(44,748)
Net unrealized appreciation (depreciation) on open contracts		8,235
Forward Contracts [Member] | Currencies [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		52,983
Notional Amount		41,698,689
Total unrealized depreciation on open contracts		(44,748)
Notional Amount		$ 39,202,988
Total Unrealized Depreciation on Open Contracts [Member] | Forward Contracts [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		0.09%
Total Unrealized Depreciation on Open Contracts [Member] | Forward Contracts [Member] | Currencies [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		0.09%
Total Unrealized Appreciation on Open Contracts [Member] | Forward Contracts [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		0.11%
Total Unrealized Appreciation on Open Contracts [Member] | Forward Contracts [Member] | Currencies [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		0.11%
SECOR Master Fund L.P. [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		16.71%
Total investment in the Funds		$ 8,136,648
Cambridge Master Fund L.P. [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		7.10%
Total investment in the Funds		$ 3,454,254
CMF Willowbridge Master Fund L.P. [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		0.00%
Limited Partners [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		23.81%		59.21%
Total investment in the Funds		$ 11,590,902		$ 37,830,104
Limited Partners [Member] | SECOR Master Fund L.P. [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		16.71%		29.63%
Total investment in the Funds		$ 8,136,648		$ 18,932,359
Limited Partners [Member] | Cambridge Master Fund L.P. [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		7.10%		23.42%
Total investment in the Funds		$ 3,454,254		$ 14,960,410
Limited Partners [Member] | CMF Willowbridge Master Fund L.P. [Member]
Schedule of Investments [Line Items]
% of Partners' Capital				6.16%
Total investment in the Funds				$ 3,937,335
Calls Option [Member] | Energy [Member] | Options Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		183
% of Partners' Capital		0.06%
Net unrealized appreciation (depreciation) on open contracts		$ 26,901
Puts Option [Member] | Energy [Member] | Options Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		107
% of Partners' Capital		0.02%
Net unrealized appreciation (depreciation) on open contracts		$ 12,840
[1]	Defined in Note 1.
[2]	Due to rounding.

Condensed Schedule of Investme5

Condensed Schedule of Investments (Parenthetical)	Sep. 30, 2017USD ($)
Schedule of Investments [Line Items]
Cost of option purchased	$ 85,853
Options Contracts [Member]
Schedule of Investments [Line Items]
Cost of option purchased	$ 85,853

Statements of Income and Expens

Statements of Income and Expenses - USD ($)		3 Months Ended		9 Months Ended
		Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Investment Income:
Interest income		$ 86,273	$ 15,062	$ 196,377	$ 45,914
Interest income allocated from the Funds		34,845	28,129	110,260	85,231
Total investment income		121,118	43,191	306,637	131,145
Expenses:
Expenses allocated from the Funds		56,000	93,809	179,636	328,791
Clearing fees related to direct investments		46,563	49,577	159,637	191,061
Ongoing selling agent fees		256,614	383,426	869,315	1,280,398
Management fees		180,760	280,933	612,038	950,260
General Partner fees		129,453	191,411	434,890	639,200
Incentive fees		24,101	110,217	118,265	290,666
Professional fees		89,930	107,399	277,834	328,032
Total expenses		783,421	1,216,772	2,651,615	4,008,408
Net investment loss		(662,303)	(1,173,581)	(2,344,978)	(3,877,263)
Net gains (losses) on trading of commodity interests and investment in the Funds:
Net realized gains (losses) on closed contracts		502,882	2,123,836	(519,242)	1,293,168
Net realized gains (losses) on closed contracts allocated from the Funds		(1,307,447)	1,222,110	588,297	45,092
Net change in unrealized gains (losses) on open contracts		(120,234)	(1,509,556)	(226,654)	(504,134)
Net change in unrealized gains (losses) on open contracts allocated from the Funds		219,847	(1,815,328)	134,413	257,904
Total trading results		(704,952)	21,062	(23,186)	1,092,030
Net income (loss)		(1,367,255)	(1,152,519)	(2,368,164)	(2,785,233)
Class A Redeemable Units [Member]
Net gains (losses) on trading of commodity interests and investment in the Funds:
Net income (loss)		$ (1,353,204)	$ (1,152,519)	$ (2,354,113)	$ (2,785,233)
Net asset value per Redeemable Unit		$ 1,199.01	$ 1,283.37	$ 1,199.01	$ 1,283.37
Net income (loss) per Redeemable Unit	[1]	$ (32.42)	$ (19.23)	$ (55.28)	$ (44.79)
Weighted average Redeemable Units outstanding		41,972.5350	59,230.3588	46,281.6278	64,634.9709
Class Z Redeemable Units [Member]
Net gains (losses) on trading of commodity interests and investment in the Funds:
Net income (loss)		$ (14,051)		$ (14,051)
Net asset value per Redeemable Unit		$ 978.59		$ 978.59
Net income (loss) per Redeemable Unit	[1]	$ (21.41)		$ (21.41)
Weighted average Redeemable Units outstanding		656.2520		656.2520
[1]	Represents the change in net asset value per Redeemable Unit during the period.

Statements of Income and Expen7

Statements of Income and Expenses (Parenthetical) - shares	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Dec. 31, 2015
Redeemable units outstanding	40,726.8780	50,937.7676	56,890.8278	71,022.0498
Class A Redeemable Units [Member]
Redeemable units outstanding	40,070.6260	50,937.7676	56,890.8278	71,022.0498
Class Z Redeemable Units [Member]
Redeemable units outstanding	656.2520		0

Statements of Changes in Partne

Statements of Changes in Partners' Capital - USD ($)	Total	General Partner [Member]	Limited Partners [Member]	Class A Redeemable Units [Member]	Class A Redeemable Units [Member]General Partner [Member]	Class A Redeemable Units [Member]Limited Partners [Member]	Class Z Redeemable Units [Member]	Class Z Redeemable Units [Member]General Partner [Member]
Partners' Capital, beginning of period at Dec. 31, 2015	$ 94,328,641			$ 94,328,641
Subscriptions			$ 35,000			$ 35,000
Redemptions		$ (211,129)	$ (18,355,305)		$ (211,129)	$ (18,355,305)
Net income (loss)	(2,785,233)			(2,785,233)
Partners' Capital, end of period at Sep. 30, 2016	$ 73,011,974			$ 73,011,974
Partners' Capital, beginning of period at Dec. 31, 2015	71,022.0498			71,022.0498
Subscriptions - Redeemable Units			26.8380			26.8380
Redemptions - Redeemable Units		(162.0830)	(13,995.9770)		(162.0830)	(13,995.9770)
Partners' Capital, end of period at Sep. 30, 2016	56,890.8278			56,890.8278			0
Partners' Capital, beginning of period at Dec. 31, 2016	$ 63,890,718			$ 63,890,718
Subscriptions		$ 656,252	$ 157,041			$ 157,041		$ 656,252
Redemptions		$ (706,349)	$ (12,942,123)		$ (706,349)	$ (12,942,123)
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, beginning of period at Dec. 31, 2016	50,937.7676			50,937.7676
Subscriptions - Redeemable Units		656.2520	124.9570			124.9570		656.2520
Redemptions - Redeemable Units		(572.7556)	(10,419.3430)		(572.7556)	(10,419.3430)
Partners' Capital, end of period at Sep. 30, 2017	40,726.8780			40,070.6260			656.2520

Organization

Organization	9 Months Ended
	Sep. 30, 2017
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. As of January 1, 2017, the General Partner became 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. Prior to January 1, 2017, the General Partner was a wholly-owned subsidiary of Morgan Stanley Smith Barney Holdings LLC. During the reporting periods ended September 30, 2017 and 2016, the Partnership’s/Funds’ commodity broker was Morgan Stanley & Co. LLC (“MS&Co.”), a registered futures commission merchant. The Partnership/Funds also deposit 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, as well as U.S. tax exempt individuals and institutions. Class Z Redeemable Units are offered to certain employees of Morgan Stanley and its subsidiaries (and their family members). The Class of Redeemable Units that a limited partner of the Partnership receives upon subscription will generally depend upon the amount invested in the Partnership or the status of the limited partner, although the General Partner may determine to offer a particular Class of Redeemable Units to investors at its discretion. Class Z Redeemable Units were first issued on July 1, 2017. As of September 30, 2017, there were no Redeemable Units outstanding in Class D. All trading decisions are made for the Partnership by its trading advisors (the “Advisors”) either directly, through individually managed accounts, or indirectly, through investments in other collective investment vehicles. As of September 30, 2017, 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”), Launchpad Capital Management, LLC (“Launchpad”) 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 September 30, 2016, Centurion Investment Management, LLC (“Centurion”) ceased to act as a commodity trading advisor to the Partnership. Effective July 31, 2016, Perella Weinberg Partners Capital Management LP (“Perella”) 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 or MS&Co. and are not responsible for the organization or operation of the Partnership. References herein to the “Advisors” may also include, as relevant, references to Willowbridge, Perella and Centurion. From May 12, 2014 until its termination effective September 30, 2016, the assets allocated to Centurion for trading had been traded directly pursuant to Centurion’s Short Term Systemic Strategy Program. Prior to its termination effective July 31, 2016, the assets allocated to Perella had been traded directly pursuant to a variation of the program traded by PWP Global Macro Master Fund L.P. On August 1, 2016, the Partnership allocated a portion of its assets to Harbour Square, which trades the assets directly pursuant to Harbour Square’s Discretionary Energy Program through a managed account in the Partnership’s name. 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 February 1, 2017, the Partnership allocated a portion of its assets to AE Capital. AE Capital began trading the assets directly pursuant to AE Capital’s AE Systematic FX Fund Program through a managed account in the Partnership’s name on March 1, 2017. On September 1, 2017, the Partnership allocated a portion of its assets to Launchpad which trades the assets directly pursuant to Launchpad MJP Commodity Strategy through a managed account in the Partnership’s name. Cambridge Master Fund L.P (“Cambridge Master”), SECOR Master Fund L.P (“SECOR Master”), the Partnership and, prior to its termination, CMF Willowbridge Master Fund L.P. (“Willowbridge Master”) have entered into futures brokerage account agreements and foreign exchange brokerage account agreements with MS&Co. Cambridge Master and SECOR Master are collectively referred to as the “Funds.” References herein to “Funds” may also include as relevant, references 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, 2017
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, 2017, the results of its operations for the three and nine months ended September 30, 2017 and 2016 and changes in partners’ capital for the nine months ended September 30, 2017 and 2016. 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, 2017
Text Block [Abstract]
Financial Highlights	3. Financial Highlights: Financial highlights for the limited partner class as a whole for the three and nine months ended September 30, 2017 and 2016 were as follows: Class A Three Months Ended Nine Months Ended September 30, September 30, 2017 2016 2017 2016 Per Redeemable Unit Performance (for a unit outstanding throughout the period): * Net realized and unrealized gains (losses) $ (16.76 ) $ 0.58 $ (4.72 ) $ 15.20 Net investment loss (15.66 ) (19.81 ) (50.56 ) (59.99 ) Increase (decrease) for the period (32.42 ) (19.23 ) (55.28 ) (44.79 ) Net asset value per Redeemable Unit, beginning of period 1,231.43 1,302.60 1,254.29 1,328.16 Net asset value per Redeemable Unit, end of period $ 1,199.01 $ 1,283.37 $ 1,199.01 $ 1,283.37 Three Months Ended Nine Months Ended September 30, September 30, 2017 2016 2017 2016 Ratios to Average Limited Partners’ Capital:** Net investment loss *** (5.1 ) % (5.7 ) % (5.4 ) % (6.1 ) % Operating expenses 5.9 % 5.8 % 6.0 % 5.9 % Incentive fees 0.1 % 0.1 % 0.2 % 0.4 % Total expenses 6.0 % 5.9 % 6.2 % 6.3 % Total return: Total return before incentive fees (2.5 ) % (1.4 ) % (4.2 ) % (3.0 ) % Incentive fees (0.1 ) % (0.1 ) % (0.2 ) % (0.4 ) % Total return after incentive fees (2.6 ) % (1.5 ) % (4.4 ) % (3.4 ) % * 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 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, 2017
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 the legal right to net unrealized gains and losses on open futures, forward and option contracts in the 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 the 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, 2017 and 2016 were 1,209 and 1,007, respectively. The monthly average number of futures contracts traded directly by the Partnership during the nine months ended September 30, 2017 and 2016 were 2,014 and 2,442 respectively. The monthly average number of option contracts traded directly by the Partnership during the three months ended September 30, 2017 and 2016 were 97 and 0, respectively. The monthly average number of option contracts traded directly by the Partnership during the nine months ended September 30, 2017 and 2016 were 59 and 0, respectively. The monthly average notional value of currency forward contracts traded directly by the Partnership during the three months ended September 30, 2017 and 2016 were $89,134,286 and $10,650,973, respectively. The monthly average notional value of currency forward contracts traded directly by the Partnership during the nine months ended September 30, 2017 and 2016 were $62,032,845 and $20,069,124, 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, 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, 2017 and December 31, 2016, respectively. Gross Amounts Amounts Gross Amounts Not Offset in the Offset in the Presented in the Statements of Financial Condition Statements of Statements of Cash Collateral Gross Amounts Financial Financial Financial Received/ September 30, 2017 Recognized Condition Condition Instruments Pledged* Net Amount Assets Futures $ 354,618 $ (354,618 ) $ - $ - $ - $ - Forwards 52,983 (44,748 ) 8,235 - - 8,235 Total assets $ 407,601 $ (399,366 ) $ 8,235 $ - $ - $ 8,235 Liabilities Futures $ (518,751 ) $ 354,618 $ (164,133 ) $ - $ - $ (164,133) Forwards (44,748 ) 44,748 - - - - Total liabilities $ (563,499 ) $ 399,366 $ (164,133 ) $ - $ - $ (164,133) Net Fair Value $ (155,898) * Gross Amounts Amounts Gross Amounts Not Offset in the Offset in the Presented in the Statements of Financial Condition Statements of Statements of Cash Collateral Gross Amounts Financial Financial Financial Received/ December 31, 2016 Recognized Condition Condition Instruments Pledged* Net Amount Assets Futures $ 365,927 $ (343,652 ) $ 22,275 $ - $ - $ 22,275 Total assets $ 365,927 $ (343,652 ) $ 22,275 $ - $ - $ 22,275 Liabilities Futures $ (343,652 ) $ 343,652 $ - $ - $ - $ - Total liabilities $ (343,652 ) $ 343,652 $ - $ - $ - $ - Net Fair Value $ 22,275 * * 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 contracts, as applicable, has the right to offset the Partnership’s obligation with the Partnership’s cash and/or U.S. Treasury bills held by MS&Co., thereby minimizing MS&Co.’s risk of loss. In certain instances, MS&Co. may not post collateral and as such, in the event of default by MS&Co., the Partnership is exposed to the amount shown in the Statements of Financial Condition. In the case of exchange-traded contracts, the Partnership’s exposure to counterparty risk may be reduced since the exchange’s clearinghouse interposes its credit between buyer and seller and the clearinghouse’s guarantee funds may be available in the event of a default. The following tables indicate the gross fair values of derivative instruments of futures, forward and option contracts, as applicable, held directly by the Partnership as separate assets and liabilities as of September 30, 2017 and December 31, 2016, respectively. September 30, 2017 Assets Futures Contracts Currencies $ 1,494 Energy 92,986 Grains 24,781 Indices 150,154 Interest Rates U.S. 1,937 Interest Rates Non-U.S. 21,712 Livestock 44,752 Metals 6,077 Softs 10,725 Total unrealized appreciation on open futures contracts 354,618 Liabilities Futures Contracts Currencies (99,786 ) Energy (131,698 ) Grains (20,678 ) Indices (138,400 ) Interest Rates U.S. (1,203 ) Interest Rates Non-U.S. (3,405 ) Livestock (27,232 ) Metals (78,008 ) Softs (18,341 ) Total unrealized depreciation on open futures contracts (518,751 ) Net unrealized depreciation on open futures contracts $ (164,133) * Assets Forward Contracts Currencies $ 52,983 Total unrealized appreciation on open forward contracts 52,983 Liabilities Forward Contracts Currencies (44,748 ) Total unrealized depreciation on open forward contracts (44,748 ) Net unrealized appreciation on open forward contracts $ 8,235 ** Assets Options Purchased Energy $ 39,741 Total options purchased $ 39,741 *** * This amount is in “Net unrealized depreciation on open futures contracts” in the Statements of Financial Condition. ** This amount is in “Net unrealized appreciation on open forward contracts” in the Statements of Financial Condition. *** This amount is in “Options purchased, at fair value” in the Statements of Financial Condition. . December 31, 2016 Assets Futures Contracts Currencies $ 20,075 Energy 10,875 Grains 33,090 Indices 126,605 Interest Rates U.S. 19,212 Interest Rates Non-U.S. 78,347 Livestock 29,680 Metals 16,503 Softs 31,540 Total unrealized appreciation on open futures contracts 365,927 Liabilities Futures Contracts Currencies (50,048 ) Energy (9,015 ) Grains (87,992 ) Indices (93,336 ) Interest Rates U.S. (28,812 ) Interest Rates Non-U.S. (25,482 ) Livestock (2,900 ) Metals (33,448 ) Softs (12,619 ) Total unrealized depreciation on open futures contracts (343,652 ) Net unrealized appreciation on open futures contracts $ 22,275 * * This amount is in “Net unrealized appreciation on open futures contracts” in the Statements of Financial Condition. The following table indicates the trading gains and losses, by market sector, on derivative instruments traded directly by the Partnership for the three and nine months ended September 30, 2017 and 2016, respectively. Three Months Ended Nine Months Ended September 30, September 30, Sector 2017 2016 2017 2016 Currencies $ 363,952 $ (238,131 ) $ 493,307 $ 265,224 Energy (173,126 ) 756,538 (357,316 ) 813,101 Grains 10,579 127,735 (788,473 ) 82,116 Indices 288,760 143,193 623,670 225,290 Interest Rates U.S. (20,734 ) 51,632 (273,953 ) (1,260,625 ) Interest Rates Non-U.S. (21,170 ) (200,649 ) 97,678 1,172,216 Livestock (108,608 ) (457 ) (17,688 ) (42 ) Metals 144,355 (25,213 ) (90,857 ) (502,891 ) Softs (101,360 ) (368 ) (432,264 ) (5,355 ) Total $ 382,648 **** $ 614,280 **** $ (745,896 ) **** $ 789,034 * *** **** This amount is included in “Total trading results” in the Partnership’s Statements of Income and Expenses.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2017
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 exchange-traded commodity futures, forward, 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, 2017 Total Level 1 Level 2 Level 3 Assets Futures $ 354,618 $ 354,618 $ - $ - Forwards 52,983 - 52,983 - Options 39,741 39,741 - - Total assets $ 447,342 $ 394,359 $ 52,983 $ - Liabilities Futures $ 518,751 $ 518,751 $ - $ - Forwards 44,748 - 44,748 - Total liabilities $ 563,499 $ 518,751 $ 44,748 $ - December 31, 2016 Total Level 1 Level 2 Level 3 Assets Futures $ 365,927 $ 365,927 $ - $ - Total assets $ 365,927 $ 365,927 $ - $ - Liabilities Futures $ 343,652 $ 343,652 $ - $ - Total liabilities $ 343,652 $ 343,652 $ - $ -

Investment in the Funds

Investment in the Funds	9 Months Ended
	Sep. 30, 2017
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 agreed that Cambridge will trade the Partnership’s assets allocated to Cambridge at a level that is up to 1.5 times the amount of assets allocated. 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 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 agreed that SECOR will trade the Partnership’s assets allocated to SECOR at a level that is up to 1.5 times the amount of assets allocated. 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 times the amount of assets allocated. 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 material changes to any of the trading programs discussed above during the fiscal quarter ended September 30, 2017. The Funds’ and the Partnership’s trading of futures, forward 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 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 at least three days in advance of the Redemption Date. Such withdrawals are classified as a liability when the limited partner elects to redeem and informs the Funds. However, a limited partner may request a withdrawal as of the end of any day if such request is received by the General Partner 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, including the Partnership. Clearing fees are also borne by the Partnership directly. At September 30, 2017, the Partnership owned approximately 32.3% of SECOR Master and 9.2% of Cambridge Master. At December 31, 2016, the Partnership owned approximately 49.1% of SECOR Master, 26.2% of Cambridge Master and 1.0% of Willowbridge Master. It is the Partnership’s intention to continue to invest in the Funds (except Willowbridge Master). 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’ capital of the Funds is shown in the following tables: September 30, 2017 Total Assets Total Liabilities Total Partners’ Capital SECOR Master $ 25,872,338 $ 729,532 $ 25,142,806 Cambridge Master 37,588,153 37,728 37,550,425 December 31, 2016 Total Assets Total Liabilities Total Partners’ SECOR Master $ 39,231,542 $ 679,104 $ 38,552,438 Cambridge Master 58,282,466 1,125,600 57,156,866 Willowbridge Master 396,846,845 5,348,232 391,498,613 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, 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 (a) 155,028 (5,302,674 ) (5,147,646 ) For the three months ended September 30, 2016 Net Investment Total Trading Net Income (Loss) SECOR Master $ (50,084 ) $ 2,380,570 $ 2,330,486 Cambridge Master (3,827 ) (5,491,999 ) (5,495,826 ) Willowbridge Master (38,070 ) (8,182,932 ) (8,221,002 ) For the nine months ended September 30, 2016 Net Investment Total Trading Net Income (Loss) SECOR Master $ (195,808 ) $ 2,774,132 $ 2,578,324 Cambridge Master 3,746 (2,913,416 ) (2,909,670 ) Willowbridge Master (222,525 ) (18,740,739 ) (18,963,264 ) (a) 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, 2017 For the three months ended September 30, 2017 % of Expenses Net Partners’ Fair Income Clearing Professional Income Investment Redemptions Funds Capital Value (Loss) Fees Fees (Loss) Objective Permitted SECOR Master 16.71 % $ 8,136,648 $ (812,825 ) $ 44,788 $ 5,773 $ (863,386 ) Commodity Portfolio Monthly Cambridge Master 7.10 % 3,454,254 (239,930 ) 3,572 1,867 (245,369 ) Commodity Portfolio Monthly Total $ 11,590,902 $ (1,052,755 ) $ 48,360 $ 7,640 $ (1,108,755 ) September 30, 2017 For the nine months ended September 30, 2017 % of Expenses Net Partners’ Fair Income Clearing Professional Income Investment Redemptions Funds Capital Value (Loss) Fees Fees (Loss) Objective Permitted SECOR Master 16.71 % $ 8,136,648 $ (124,335 ) $ 137,951 $ 19,682 $ (281,968 ) Commodity Portfolio Monthly Cambridge Master 7.10 % 3,454,254 968,844 13,517 7,812 947,515 Commodity Portfolio Monthly Willowbridge (a) 0.00 % - (11,539 ) 612 62 (12,213 ) Commodity Portfolio Monthly Total $ 11,590,902 $ 832,970 $ 152,080 $ 27,556 $ 653,334 December 31, 2016 For the three months ended September 30, 2016 % of Expenses Net Partners’ Fair Income Clearing Professional Income Investment Redemptions Funds Capital Value (Loss) Fees Fees (Loss) Objective Permitted SECOR Master 29.63 % $ 18,932,359 $ 1,106,480 $ 63,915 $ 9,162 $ 1,033,403 Commodity Portfolio Monthly Cambridge Master 23.42 % 14,960,410 (1,497,401 ) 9,041 5,442 (1,511,884 ) Commodity Portfolio Monthly Willowbridge Master 6.16 % 3,937,335 (174,168 ) 5,808 441 (180,417 ) Commodity Portfolio Monthly Total $ 37,830,104 $ (565,089 ) $ 78,764 $ 15,045 $ (658,898 ) December 31, 2016 For the nine months ended September 30, 2016 % of Expenses Net Partners’ Fair Income Clearing Professional Income Investment Redemptions Funds Capital Value (Loss) Fees Fees (Loss) Objective Permitted SECOR Master 29.63 % $ 18,932,359 $ 1,348,719 $ 238,343 $ 26,215 $ 1,084,161 Commodity Portfolio Monthly Cambridge Master 23.42 % 14,960,410 (537,484 ) 21,722 19,078 (578,284 ) Commodity Portfolio Monthly Willowbridge Master 6.16 % 3,937,335 (423,008 ) 21,782 1,651 (446,441 ) Commodity Portfolio Monthly Total $ 37,830,104 $ 388,227 $ 281,847 $ 46,944 $ 59,436 (a) 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, 2017
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, 2017
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 issued. The General Partner has assessed the subsequent events through the date the financial statements were issued and has determined that there were no subsequent events requiring adjustment to or disclosure in the financial statements.

Basis of Presentation and Sum17

Basis of Presentation and Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2017
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, 2017
Text Block [Abstract]
Financial Highlights	Financial highlights for the limited partner class as a whole for the three and nine months ended September 30, 2017 and 2016 were as follows: Class A Three Months Ended Nine Months Ended September 30, September 30, 2017 2016 2017 2016 Per Redeemable Unit Performance (for a unit outstanding throughout the period): * Net realized and unrealized gains (losses) $ (16.76 ) $ 0.58 $ (4.72 ) $ 15.20 Net investment loss (15.66 ) (19.81 ) (50.56 ) (59.99 ) Increase (decrease) for the period (32.42 ) (19.23 ) (55.28 ) (44.79 ) Net asset value per Redeemable Unit, beginning of period 1,231.43 1,302.60 1,254.29 1,328.16 Net asset value per Redeemable Unit, end of period $ 1,199.01 $ 1,283.37 $ 1,199.01 $ 1,283.37 Three Months Ended Nine Months Ended September 30, September 30, 2017 2016 2017 2016 Ratios to Average Limited Partners’ Capital:** Net investment loss *** (5.1 ) % (5.7 ) % (5.4 ) % (6.1 ) % Operating expenses 5.9 % 5.8 % 6.0 % 5.9 % Incentive fees 0.1 % 0.1 % 0.2 % 0.4 % Total expenses 6.0 % 5.9 % 6.2 % 6.3 % Total return: Total return before incentive fees (2.5 ) % (1.4 ) % (4.2 ) % (3.0 ) % Incentive fees (0.1 ) % (0.1 ) % (0.2 ) % (0.4 ) % Total return after incentive fees (2.6 ) % (1.5 ) % (4.4 ) % (3.4 ) % * 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, 2017
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, 2017 and December 31, 2016, respectively. Gross Amounts Amounts Gross Amounts Not Offset in the Offset in the Presented in the Statements of Financial Condition Statements of Statements of Cash Collateral Gross Amounts Financial Financial Financial Received/ September 30, 2017 Recognized Condition Condition Instruments Pledged* Net Amount Assets Futures $ 354,618 $ (354,618 ) $ - $ - $ - $ - Forwards 52,983 (44,748 ) 8,235 - - 8,235 Total assets $ 407,601 $ (399,366 ) $ 8,235 $ - $ - $ 8,235 Liabilities Futures $ (518,751 ) $ 354,618 $ (164,133 ) $ - $ - $ (164,133) Forwards (44,748 ) 44,748 - - - - Total liabilities $ (563,499 ) $ 399,366 $ (164,133 ) $ - $ - $ (164,133) Net Fair Value $ (155,898) * Gross Amounts Amounts Gross Amounts Not Offset in the Offset in the Presented in the Statements of Financial Condition Statements of Statements of Cash Collateral Gross Amounts Financial Financial Financial Received/ December 31, 2016 Recognized Condition Condition Instruments Pledged* Net Amount Assets Futures $ 365,927 $ (343,652 ) $ 22,275 $ - $ - $ 22,275 Total assets $ 365,927 $ (343,652 ) $ 22,275 $ - $ - $ 22,275 Liabilities Futures $ (343,652 ) $ 343,652 $ - $ - $ - $ - Total liabilities $ (343,652 ) $ 343,652 $ - $ - $ - $ - Net Fair Value $ 22,275 * * 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 contracts, as applicable, has the right to offset the Partnership’s obligation with the Partnership’s cash and/or U.S. Treasury bills held by MS&Co., thereby minimizing MS&Co.’s risk of loss. In certain instances, MS&Co. may not post collateral and as such, in the event of default by MS&Co., the Partnership is exposed to the amount shown in the Statements of Financial Condition. In the case of exchange-traded contracts, the Partnership’s exposure to counterparty risk may be reduced since the exchange’s clearinghouse interposes its credit between buyer and seller and the clearinghouse’s guarantee funds may be available in the event of a default.
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, forward and option contracts, as applicable, held directly by the Partnership as separate assets and liabilities as of September 30, 2017 and December 31, 2016, respectively. September 30, 2017 Assets Futures Contracts Currencies $ 1,494 Energy 92,986 Grains 24,781 Indices 150,154 Interest Rates U.S. 1,937 Interest Rates Non-U.S. 21,712 Livestock 44,752 Metals 6,077 Softs 10,725 Total unrealized appreciation on open futures contracts 354,618 Liabilities Futures Contracts Currencies (99,786 ) Energy (131,698 ) Grains (20,678 ) Indices (138,400 ) Interest Rates U.S. (1,203 ) Interest Rates Non-U.S. (3,405 ) Livestock (27,232 ) Metals (78,008 ) Softs (18,341 ) Total unrealized depreciation on open futures contracts (518,751 ) Net unrealized depreciation on open futures contracts $ (164,133) * Assets Forward Contracts Currencies $ 52,983 Total unrealized appreciation on open forward contracts 52,983 Liabilities Forward Contracts Currencies (44,748 ) Total unrealized depreciation on open forward contracts (44,748 ) Net unrealized appreciation on open forward contracts $ 8,235 ** Assets Options Purchased Energy $ 39,741 Total options purchased $ 39,741 *** * This amount is in “Net unrealized depreciation on open futures contracts” in the Statements of Financial Condition. ** This amount is in “Net unrealized appreciation on open forward contracts” in the Statements of Financial Condition. *** This amount is in “Options purchased, at fair value” in the Statements of Financial Condition. . December 31, 2016 Assets Futures Contracts Currencies $ 20,075 Energy 10,875 Grains 33,090 Indices 126,605 Interest Rates U.S. 19,212 Interest Rates Non-U.S. 78,347 Livestock 29,680 Metals 16,503 Softs 31,540 Total unrealized appreciation on open futures contracts 365,927 Liabilities Futures Contracts Currencies (50,048 ) Energy (9,015 ) Grains (87,992 ) Indices (93,336 ) Interest Rates U.S. (28,812 ) Interest Rates Non-U.S. (25,482 ) Livestock (2,900 ) Metals (33,448 ) Softs (12,619 ) Total unrealized depreciation on open futures contracts (343,652 ) Net unrealized appreciation on open futures contracts $ 22,275 * * This amount is in “Net unrealized appreciation on open futures contracts” in the Statements of Financial Condition.
Trading Gains and Losses by Market Sector on Derivative Instruments Traded	The following table indicates the trading gains and losses, by market sector, on derivative instruments traded directly by the Partnership for the three and nine months ended September 30, 2017 and 2016, respectively. Three Months Ended Nine Months Ended September 30, September 30, Sector 2017 2016 2017 2016 Currencies $ 363,952 $ (238,131 ) $ 493,307 $ 265,224 Energy (173,126 ) 756,538 (357,316 ) 813,101 Grains 10,579 127,735 (788,473 ) 82,116 Indices 288,760 143,193 623,670 225,290 Interest Rates U.S. (20,734 ) 51,632 (273,953 ) (1,260,625 ) Interest Rates Non-U.S. (21,170 ) (200,649 ) 97,678 1,172,216 Livestock (108,608 ) (457 ) (17,688 ) (42 ) Metals 144,355 (25,213 ) (90,857 ) (502,891 ) Softs (101,360 ) (368 ) (432,264 ) (5,355 ) Total $ 382,648 **** $ 614,280 **** $ (745,896 ) **** $ 789,034 * *** **** This amount is included in “Total trading results” in the Partnership’s Statements of Income and Expenses.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2017
Fair Value Disclosures [Abstract]
Summary of Assets and Liabilities Measured at Fair Value	During the reporting periods, there were no transfers of assets or liabilities between Level 1 and Level 2. September 30, 2017 Total Level 1 Level 2 Level 3 Assets Futures $ 354,618 $ 354,618 $ - $ - Forwards 52,983 - 52,983 - Options 39,741 39,741 - - Total assets $ 447,342 $ 394,359 $ 52,983 $ - Liabilities Futures $ 518,751 $ 518,751 $ - $ - Forwards 44,748 - 44,748 - Total liabilities $ 563,499 $ 518,751 $ 44,748 $ - December 31, 2016 Total Level 1 Level 2 Level 3 Assets Futures $ 365,927 $ 365,927 $ - $ - Total assets $ 365,927 $ 365,927 $ - $ - Liabilities Futures $ 343,652 $ 343,652 $ - $ - Total liabilities $ 343,652 $ 343,652 $ - $ -

Investment in the Funds (Tables

Investment in the Funds (Tables)	9 Months Ended
	Sep. 30, 2017
Schedule of Investments [Abstract]
Assets, Liabilities and Partners' Capital of Funds	Summarized information reflecting the total assets, liabilities and partners’ capital of the Funds is shown in the following tables: September 30, 2017 Total Assets Total Liabilities Total Partners’ Capital SECOR Master $ 25,872,338 $ 729,532 $ 25,142,806 Cambridge Master 37,588,153 37,728 37,550,425 December 31, 2016 Total Assets Total Liabilities Total Partners’ SECOR Master $ 39,231,542 $ 679,104 $ 38,552,438 Cambridge Master 58,282,466 1,125,600 57,156,866 Willowbridge Master 396,846,845 5,348,232 391,498,613
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, 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 (a) 155,028 (5,302,674 ) (5,147,646 ) For the three months ended September 30, 2016 Net Investment Total Trading Net Income (Loss) SECOR Master $ (50,084 ) $ 2,380,570 $ 2,330,486 Cambridge Master (3,827 ) (5,491,999 ) (5,495,826 ) Willowbridge Master (38,070 ) (8,182,932 ) (8,221,002 ) For the nine months ended September 30, 2016 Net Investment Total Trading Net Income (Loss) SECOR Master $ (195,808 ) $ 2,774,132 $ 2,578,324 Cambridge Master 3,746 (2,913,416 ) (2,909,670 ) Willowbridge Master (222,525 ) (18,740,739 ) (18,963,264 ) (a) 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, 2017 For the three months ended September 30, 2017 % of Expenses Net Partners’ Fair Income Clearing Professional Income Investment Redemptions Funds Capital Value (Loss) Fees Fees (Loss) Objective Permitted SECOR Master 16.71 % $ 8,136,648 $ (812,825 ) $ 44,788 $ 5,773 $ (863,386 ) Commodity Portfolio Monthly Cambridge Master 7.10 % 3,454,254 (239,930 ) 3,572 1,867 (245,369 ) Commodity Portfolio Monthly Total $ 11,590,902 $ (1,052,755 ) $ 48,360 $ 7,640 $ (1,108,755 ) September 30, 2017 For the nine months ended September 30, 2017 % of Expenses Net Partners’ Fair Income Clearing Professional Income Investment Redemptions Funds Capital Value (Loss) Fees Fees (Loss) Objective Permitted SECOR Master 16.71 % $ 8,136,648 $ (124,335 ) $ 137,951 $ 19,682 $ (281,968 ) Commodity Portfolio Monthly Cambridge Master 7.10 % 3,454,254 968,844 13,517 7,812 947,515 Commodity Portfolio Monthly Willowbridge (a) 0.00 % - (11,539 ) 612 62 (12,213 ) Commodity Portfolio Monthly Total $ 11,590,902 $ 832,970 $ 152,080 $ 27,556 $ 653,334 December 31, 2016 For the three months ended September 30, 2016 % of Expenses Net Partners’ Fair Income Clearing Professional Income Investment Redemptions Funds Capital Value (Loss) Fees Fees (Loss) Objective Permitted SECOR Master 29.63 % $ 18,932,359 $ 1,106,480 $ 63,915 $ 9,162 $ 1,033,403 Commodity Portfolio Monthly Cambridge Master 23.42 % 14,960,410 (1,497,401 ) 9,041 5,442 (1,511,884 ) Commodity Portfolio Monthly Willowbridge Master 6.16 % 3,937,335 (174,168 ) 5,808 441 (180,417 ) Commodity Portfolio Monthly Total $ 37,830,104 $ (565,089 ) $ 78,764 $ 15,045 $ (658,898 ) December 31, 2016 For the nine months ended September 30, 2016 % of Expenses Net Partners’ Fair Income Clearing Professional Income Investment Redemptions Funds Capital Value (Loss) Fees Fees (Loss) Objective Permitted SECOR Master 29.63 % $ 18,932,359 $ 1,348,719 $ 238,343 $ 26,215 $ 1,084,161 Commodity Portfolio Monthly Cambridge Master 23.42 % 14,960,410 (537,484 ) 21,722 19,078 (578,284 ) Commodity Portfolio Monthly Willowbridge Master 6.16 % 3,937,335 (423,008 ) 21,782 1,651 (446,441 ) Commodity Portfolio Monthly Total $ 37,830,104 $ 388,227 $ 281,847 $ 46,944 $ 59,436 (a) 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, 2017	Dec. 31, 2016
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Redeemable units of limited partnership interest sold during the initial offering period	20,872
Redeemable Units per share	$ 1,000
Maximum number of Redeemable Units sold by the Partnership	0
Selling Agreement [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] | Selling Agreement [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Annual brokerage fees payable	0.75%
Class A Redeemable Units [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Limited Partner Capital Account Redeemable Unit outstanding	40,070.6260	50,365.0120
Class A Redeemable Units [Member] | Selling Agreement [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Annual brokerage fees payable	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 Sum23

Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)	9 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Accounting Policies [Line Items]
Cash denominated in foreign currencies	$ 8,642	$ (265,409)
Cash denominated in foreign currencies, proceeds		$ 267,759
Cash denominated in foreign currencies, cost	8,661
Uncertain tax position	$ 0
Earliest Tax Year [Member]
Accounting Policies [Line Items]
Open tax year	2,013
Latest Tax Year [Member]
Accounting Policies [Line Items]
Open tax year	2,016

Financial Highlights - Schedule

Financial Highlights - Schedule of Changes in Net Asset Value (Detail) - Class A Redeemable Units [Member] - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Per Redeemable Unit Performance (for a unit outstanding throughout the period):
Net realized and unrealized gains (losses)	$ (16.76)	$ 0.58	$ (4.72)	$ 15.20
Net investment loss	(15.66)	(19.81)	(50.56)	(59.99)
Increase (decrease) for the period	(32.42)	(19.23)	(55.28)	(44.79)
Net asset value per Redeemable Unit, beginning of period	1,231.43	1,302.60	1,254.29	1,328.16
Net asset value per Redeemable Unit, end of period	$ 1,199.01	$ 1,283.37	$ 1,199.01	$ 1,283.37

Financial Highlights - Ratios t

Financial Highlights - Ratios to Average Net Assets (Detail) - Class A Redeemable Units [Member]	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Ratios to Average Limited Partners' Capital:
Net investment loss	(5.10%)	(5.70%)	(5.40%)	(6.10%)
Operating expenses	5.90%	5.80%	6.00%	5.90%
Incentive fees	0.10%	0.10%	0.20%	0.40%
Total expenses	6.00%	5.90%	6.20%	6.30%
Total return:
Total return before incentive fees	(2.50%)	(1.40%)	(4.20%)	(3.00%)
Incentive fees	(0.10%)	(0.10%)	(0.20%)	(0.40%)
Total return after incentive fees	(2.60%)	(1.50%)	(4.40%)	(3.40%)

Trading Activities - Additional

Trading Activities - Additional Information (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2017USD ($)Contracts	Sep. 30, 2016USD ($)Contracts	Sep. 30, 2017USD ($)Contracts	Sep. 30, 2016USD ($)Contracts
Futures Contracts [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Monthly average number of derivative contracts traded	1,209	1,007	2,014	2,442
Options Contracts [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Monthly average number of derivative contracts traded	97	0	59	0
Forward Contracts [Member] | Currencies [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Monthly average notional value of derivative | $	$ 89,134,286	$ 10,650,973	$ 62,032,845	$ 20,069,124

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, 2017	Dec. 31, 2016
Derivative [Line Items]
Gross Amounts Recognized, Assets	$ 407,601	$ 365,927
Gross Amounts Offset in the Statements of Financial Condition, Assets	(399,366)	(343,652)
Amounts Presented in the Statements of Financial Condition, Assets	8,235	22,275
Financial Instruments, Assets	0	0
Cash Collateral Received/Pledged, Assets	0	0
Net Amount, Assets	8,235	22,275
Gross Amounts Recognized, Liabilities	(563,499)	(343,652)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	399,366	343,652
Amounts Presented in the Statements of Financial Condition, Liabilities	(164,133)
Financial Instruments, Liabilities	0	0
Cash Collateral Received/Pledged, Liabilities	0	0
Net Amount, Liabilities	(164,133)
Net Fair Value	(155,898)	22,275
Futures Contracts [Member]
Derivative [Line Items]
Gross Amounts Recognized, Assets	354,618	365,927
Gross Amounts Offset in the Statements of Financial Condition, Assets	(354,618)	(343,652)
Amounts Presented in the Statements of Financial Condition, Assets		22,275
Financial Instruments, Assets	0	0
Cash Collateral Received/Pledged, Assets	0	0
Net Amount, Assets		22,275
Gross Amounts Recognized, Liabilities	(518,751)	(343,652)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	354,618	343,652
Amounts Presented in the Statements of Financial Condition, Liabilities	(164,133)
Financial Instruments, Liabilities	0	0
Cash Collateral Received/Pledged, Liabilities	0	$ 0
Net Amount, Liabilities	(164,133)
Forward Contracts [Member]
Derivative [Line Items]
Gross Amounts Recognized, Assets	52,983
Gross Amounts Offset in the Statements of Financial Condition, Assets	(44,748)
Amounts Presented in the Statements of Financial Condition, Assets	8,235
Financial Instruments, Assets	0
Cash Collateral Received/Pledged, Assets	0
Net Amount, Assets	8,235
Gross Amounts Recognized, Liabilities	(44,748)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	44,748
Financial Instruments, Liabilities	0
Cash Collateral Received/Pledged, Liabilities	$ 0

Trading Activities - Gross Fair

Trading Activities - Gross Fair Values of Derivative Instruments of Futures, Forward and Option Contracts Traded (Detail) - USD ($)	Sep. 30, 2017	Dec. 31, 2016
Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	$ 354,618	$ 365,927
Total unrealized depreciation on open contracts	(518,751)	(343,652)
Net unrealized appreciation (depreciation) on open contracts	(164,133)	22,275
Options Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	39,741
Currencies [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	1,494	20,075
Total unrealized depreciation on open contracts	(99,786)	(50,048)
Energy [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	92,986	10,875
Total unrealized depreciation on open contracts	(131,698)	(9,015)
Energy [Member] | Options Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	39,741
Grains [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	24,781	33,090
Total unrealized depreciation on open contracts	(20,678)	(87,992)
Indices [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	150,154	126,605
Total unrealized depreciation on open contracts	(138,400)	(93,336)
Interest Rates U.S. [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	1,937	19,212
Total unrealized depreciation on open contracts	(1,203)	(28,812)
Interest Rates Non-U.S. [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	21,712	78,347
Total unrealized depreciation on open contracts	(3,405)	(25,482)
Livestock [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	44,752	29,680
Total unrealized depreciation on open contracts	(27,232)	(2,900)
Metals [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	6,077	16,503
Total unrealized depreciation on open contracts	(78,008)	(33,448)
Softs [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	10,725	31,540
Total unrealized depreciation on open contracts	(18,341)	$ (12,619)
Forward Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	52,983
Total unrealized depreciation on open contracts	(44,748)
Net unrealized appreciation (depreciation) on open contracts	8,235
Forward Contracts [Member] | Currencies [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	52,983
Total unrealized depreciation on open contracts	$ (44,748)

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, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Derivative [Line Items]
Total trading results	$ 382,648	$ 614,280	$ (745,896)	$ 789,034
Currencies [Member]
Derivative [Line Items]
Total trading results	363,952	(238,131)	493,307	265,224
Energy [Member]
Derivative [Line Items]
Total trading results	(173,126)	756,538	(357,316)	813,101
Grains [Member]
Derivative [Line Items]
Total trading results	10,579	127,735	(788,473)	82,116
Indices [Member]
Derivative [Line Items]
Total trading results	288,760	143,193	623,670	225,290
Interest Rates U.S. [Member]
Derivative [Line Items]
Total trading results	(20,734)	51,632	(273,953)	(1,260,625)
Interest Rates Non-U.S. [Member]
Derivative [Line Items]
Total trading results	(21,170)	(200,649)	97,678	1,172,216
Livestock [Member]
Derivative [Line Items]
Total trading results	(108,608)	(457)	(17,688)	(42)
Metals [Member]
Derivative [Line Items]
Total trading results	144,355	(25,213)	(90,857)	(502,891)
Softs [Member]
Derivative [Line Items]
Total trading results	$ (101,360)	$ (368)	$ (432,264)	$ (5,355)

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail)	Sep. 30, 2017USD ($)DerivativeInstrument	Dec. 31, 2016USD ($)DerivativeInstrument
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Transfers of assets between Level 1 and Level 2	$ 0	$ 0
Transfers of liabilities between Level 1 and Level 2	$ 0	$ 0
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative instruments held | DerivativeInstrument	0	0

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Assets and Liabilities Measured at Fair Value (Detail) - USD ($)	Sep. 30, 2017	Dec. 31, 2016
Assets
Total assets	$ 447,342	$ 365,927
Liabilities
Total liabilities	563,499	343,652
Futures Contracts [Member]
Assets
Total assets	354,618	365,927
Liabilities
Total liabilities	518,751	343,652
Options Contracts [Member]
Assets
Total assets	39,741
Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1) [Member]
Assets
Total assets	394,359	365,927
Liabilities
Total liabilities	518,751	343,652
Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1) [Member] | Futures Contracts [Member]
Assets
Total assets	354,618	365,927
Liabilities
Total liabilities	518,751	$ 343,652
Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1) [Member] | Options Contracts [Member]
Assets
Total assets	39,741
Significant Other Observable Inputs (Level 2) [Member]
Assets
Total assets	52,983
Liabilities
Total liabilities	44,748
Forward Contracts [Member]
Assets
Total assets	52,983
Liabilities
Total liabilities	44,748
Forward Contracts [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets
Total assets	52,983
Liabilities
Total liabilities	$ 44,748

Investment in the Funds - Addit

Investment in the Funds - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Maximum [Member] | Cambridge [Member]
Investment [Line Items]
Maximum amount of partnership assets allocated to trading advisor	2 times
Maximum [Member] | SECOR [Member]
Investment [Line Items]
Maximum amount of partnership assets allocated to trading advisor	2 times
Minimum [Member] | Cambridge [Member]
Investment [Line Items]
Maximum amount of partnership assets allocated to trading advisor	1.5 times
Minimum [Member] | SECOR [Member]
Investment [Line Items]
Maximum amount of partnership assets allocated to trading advisor	1.5 times
Cambridge Master Fund L.P. [Member]
Investment [Line Items]
Percentage owned by partnership	9.20%	26.20%
CMF Willowbridge Master Fund L.P. [Member]
Investment [Line Items]
Percentage owned by partnership		1.00%
SECOR Master Fund L.P. [Member]
Investment [Line Items]
Percentage owned by partnership	32.30%	49.10%

Investment in the Funds - Asset

Investment in the Funds - Assets, Liabilities and Partners' Capital of Funds (Detail) - USD ($)	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Dec. 31, 2015
Investment Holdings [Line Items]
Total assets	$ 50,478,343	$ 67,541,872
Total Liabilities	1,790,968	3,651,154
Total Partners' Capital	48,687,375	63,890,718	$ 73,011,974	$ 94,328,641
SECOR Master Fund L.P. [Member]
Investment Holdings [Line Items]
Total assets	25,872,338	39,231,542
Total Liabilities	729,532	679,104
Total Partners' Capital	25,142,806	38,552,438
Cambridge Master Fund L.P. [Member]
Investment Holdings [Line Items]
Total assets	37,588,153	58,282,466
Total Liabilities	37,728	1,125,600
Total Partners' Capital	$ 37,550,425	57,156,866
CMF Willowbridge Master Fund L.P. [Member]
Investment Holdings [Line Items]
Total assets		396,846,845
Total Liabilities		5,348,232
Total Partners' Capital		$ 391,498,613

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, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Investment Holdings [Line Items]
Net Investment Income (Loss)	$ (662,303)	$ (1,173,581)	$ (2,344,978)	$ (3,877,263)
Total Trading Results	(704,952)	21,062	(23,186)	1,092,030
Net income (loss)	(1,367,255)	(1,152,519)	(2,368,164)	(2,785,233)
SECOR Master Fund L.P. [Member]
Investment Holdings [Line Items]
Net Investment Income (Loss)	8,727	(50,084)	(5,327)	(195,808)
Total Trading Results	(2,449,650)	2,380,570	(1,070,201)	2,774,132
Net income (loss)	(2,440,923)	2,330,486	(1,075,528)	2,578,324
Cambridge Master Fund L.P. [Member]
Investment Holdings [Line Items]
Net Investment Income (Loss)	42,206	(3,827)	105,724	3,746
Total Trading Results	(1,947,071)	(5,491,999)	3,712,345	(2,913,416)
Net income (loss)	$ (1,904,865)	(5,495,826)	3,818,069	(2,909,670)
CMF Willowbridge Master Fund L.P. [Member]
Investment Holdings [Line Items]
Net Investment Income (Loss)		(38,070)	155,028	(222,525)
Total Trading Results		(8,182,932)	(5,302,674)	(18,740,739)
Net income (loss)		$ (8,221,002)	$ (5,147,646)	$ (18,963,264)

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, 2017		Sep. 30, 2016	Sep. 30, 2017		Sep. 30, 2016	Dec. 31, 2016	[1]
Investment Holdings [Line Items]
Fair Value	$ 11,590,902	[1]	$ 37,830,104	$ 11,590,902	[1]	$ 37,830,104	$ 37,830,104
Income (Loss)	(704,952)		21,062	(23,186)		1,092,030
Expenses, Clearing Fees	46,563		49,577	159,637		191,061
Expenses, Professional fees	89,930		107,399	277,834		328,032
Net Income (Loss)	$ (1,367,255)		$ (1,152,519)	$ (2,368,164)		$ (2,785,233)
SECOR Master Fund L.P. [Member]
Investment Holdings [Line Items]
Percentage of Partnership's Net Assets	16.71%		29.63%	16.71%		29.63%
Fair Value	$ 8,136,648		$ 18,932,359	$ 8,136,648		$ 18,932,359
Cambridge Master Fund L.P. [Member]
Investment Holdings [Line Items]
Percentage of Partnership's Net Assets	7.10%		23.42%	7.10%		23.42%
Fair Value	$ 3,454,254		$ 14,960,410	$ 3,454,254		$ 14,960,410
CMF Willowbridge Master Fund L.P. [Member]
Investment Holdings [Line Items]
Percentage of Partnership's Net Assets	0.00%		6.16%	0.00%		6.16%
Fair Value			$ 3,937,335			$ 3,937,335
Investment in Funds [Member]
Investment Holdings [Line Items]
Income (Loss)	$ (1,052,755)		(565,089)	$ 832,970		388,227
Expenses, Clearing Fees	48,360		78,764	152,080		281,847
Expenses, Professional fees	7,640		15,045	27,556		46,944
Net Income (Loss)	(1,108,755)		(658,898)	653,334		59,436
Investment in Funds [Member] | Commodity [Member] | SECOR Master Fund L.P. [Member]
Investment Holdings [Line Items]
Income (Loss)	(812,825)		1,106,480	(124,335)		1,348,719
Expenses, Clearing Fees	44,788		63,915	137,951		238,343
Expenses, Professional fees	5,773		9,162	19,682		26,215
Net Income (Loss)	$ (863,386)		1,033,403	$ (281,968)		1,084,161
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)	$ (239,930)		(1,497,401)	$ 968,844		(537,484)
Expenses, Clearing Fees	3,572		9,041	13,517		21,722
Expenses, Professional fees	1,867		5,442	7,812		19,078
Net Income (Loss)	$ (245,369)		(1,511,884)	$ 947,515		(578,284)
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)			(174,168)	$ (11,539)		(423,008)
Expenses, Clearing Fees			5,808	612		21,782
Expenses, Professional fees			441	62		1,651
Net Income (Loss)			$ (180,417)	$ (12,213)		$ (446,441)
Investment Objective				Commodity Portfolio
Redemptions Permitted				Monthly
[1]	Defined in Note 1.

Financial Instrument Risks - Ad

Financial Instrument Risks - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2017
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	35.20%
Maximum [Member] | Credit Concentration Risk [Member] | Partnership's/Funds' Contracts [Member] | Over the Counter [Member]
Concentration Risk [Line Items]
Concentration risk percentage	55.10%