Emerging Cta Portfolio 10-Q 10 Aug 17 2017 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2017	Jul. 31, 2017
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q2
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		41,912.4420
Class Z Redeemable Units [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		0

Statements of Financial Conditi

Statements of Financial Condition - USD ($)		Jun. 30, 2017	Dec. 31, 2016
Assets:
Investment in the Funds, at fair value	[1]	$ 20,093,255	$ 37,830,104
Equity in trading account:
Unrestricted cash		31,902,400	26,587,134
Restricted cash		4,166,611	3,093,030
Total equity in trading account		36,113,577	29,702,439
Cash at bank		825	217
Interest receivable		23,108	9,112
Total assets		56,230,765	67,541,872
Accrued expenses:
Ongoing selling agent fees		93,511	112,570
Management fees		67,427	82,039
General Partner fees		46,599	56,176
Incentive fees		94,164	120,842
Professional fees		187,855	130,926
Redemptions payable to General Partner			100,000
Redemptions payable to Limited Partners		2,163,014	3,048,601
Total liabilities		2,777,005	3,651,154
Partners' Capital:
Total partners' capital (net asset value)		53,453,760	63,890,718
Total liabilities and partners' capital		56,230,765	67,541,872
Class A Redeemable Units [Member]
Partners' Capital:
General Partner, Class A, 532.9966 and 572.7556 Redeemable Units outstanding at June 30, 2017 and December 31, 2016, respectively		656,349	718,402
Limited Partners		$ 52,797,411	$ 63,172,316
Net asset value per Redeemable Unit, Class A		$ 1,231.43	$ 1,254.29
Futures Contracts [Member]
Equity in trading account:
Net unrealized appreciation (depreciation) on open contracts		$ (124,435)	$ 22,275
Liabilities:
Net unrealized appreciation (depreciation) on open contracts		(124,435)	$ 22,275
Forward Contracts [Member]
Equity in trading account:
Net unrealized appreciation (depreciation) on open contracts		44,566
Liabilities:
Net unrealized appreciation (depreciation) on open contracts		$ 44,566
[1]	Defined in Note 1.

Statements of Financial Condit3

Statements of Financial Condition (Parenthetical) - Class A Redeemable Units [Member] - shares	Jun. 30, 2017	Dec. 31, 2016
General Partner Redeemable Units outstanding	532.9966	572.7556
Limited Partners Redeemable Units outstanding	42,874.8230	50,365.0120

Condensed Schedule of Investmen

Condensed Schedule of Investments		Jun. 30, 2017USD ($)Contract		Dec. 31, 2016USD ($)Contract
Schedule of Investments [Line Items]
Total investment in the Funds	[1]	$ 20,093,255		$ 37,830,104
Futures Contracts [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		366,145		365,927
Total unrealized depreciation on open contracts		(490,580)		(343,652)
Net unrealized appreciation (depreciation) on open contracts		$ (124,435)		$ 22,275
% of Partners' Capital		(0.23%)		0.03%
Futures Contracts [Member] | Currencies [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 10,205		$ 20,075
Total unrealized depreciation on open contracts		(82,835)		(50,048)
Futures Contracts [Member] | Energy [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		103,410		10,875
Total unrealized depreciation on open contracts		(21,760)		(9,015)
Futures Contracts [Member] | Grains [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		75,584		33,090
Total unrealized depreciation on open contracts		(98,149)		(87,992)
Futures Contracts [Member] | Indices [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		32,483		126,605
Total unrealized depreciation on open contracts		(122,447)		(93,336)
Futures Contracts [Member] | Interest Rates U.S. [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		5,875		19,212
Total unrealized depreciation on open contracts		(43,297)		(28,812)
Futures Contracts [Member] | Interest Rates Non-U.S. [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		68,098		78,347
Total unrealized depreciation on open contracts		(54,351)		(25,482)
Futures Contracts [Member] | Metals [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		40,055		16,503
Total unrealized depreciation on open contracts		(16,365)		(33,448)
Futures Contracts [Member] | Livestock [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		9,150		29,680
Total unrealized depreciation on open contracts		(42,230)		(2,900)
Futures Contracts [Member] | Softs [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		21,285		31,540
Total unrealized depreciation on open contracts		(9,146)		(12,619)
Futures Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts		$ (22,453)		$ 94,022
% of Partners' Capital		(0.04%)		0.15%
Futures Contracts [Member] | Long [Member] | Currencies [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		126
Net unrealized appreciation (depreciation) on open contracts		$ (21,034)
% of Partners' Capital		(0.04%)
Futures Contracts [Member] | Long [Member] | Energy [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		141		16
Net unrealized appreciation (depreciation) on open contracts		$ 101,720		$ 9,070
% of Partners' Capital		0.19%		0.01%
Futures Contracts [Member] | Long [Member] | Grains [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		74		61
Net unrealized appreciation (depreciation) on open contracts		$ 72,547		$ (43,507)
% of Partners' Capital		0.14%		(0.07%)
Futures Contracts [Member] | Long [Member] | Indices [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		453		28
Net unrealized appreciation (depreciation) on open contracts		$ (90,680)		$ 25,542
% of Partners' Capital		(0.17%)		0.04%
Futures Contracts [Member] | Long [Member] | Interest Rates U.S. [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		46
Net unrealized appreciation (depreciation) on open contracts		$ (37,734)
% of Partners' Capital		(0.07%)
Futures Contracts [Member] | Long [Member] | Interest Rates Non-U.S. [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		16		268
Net unrealized appreciation (depreciation) on open contracts		$ (54,351)		$ 78,021
% of Partners' Capital		(0.10%)		0.12%
Futures Contracts [Member] | Long [Member] | Metals [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		25		24
Net unrealized appreciation (depreciation) on open contracts		$ 28,020		$ (20,805)
% of Partners' Capital		0.05%		(0.02%)
Futures Contracts [Member] | Long [Member] | Livestock [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		32		39
Net unrealized appreciation (depreciation) on open contracts		$ (33,080)		$ 26,780
% of Partners' Capital		(0.06%)		0.04%
Futures Contracts [Member] | Long [Member] | Softs [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		51		118
Net unrealized appreciation (depreciation) on open contracts		$ 12,139		$ 18,921
% of Partners' Capital		0.02%		0.03%
Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts		$ (101,982)		$ (71,747)
% of Partners' Capital		(0.19%)		(0.12%)
Futures Contracts [Member] | Short [Member] | Currencies [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		69		139
Net unrealized appreciation (depreciation) on open contracts		$ (51,596)		$ (29,973)
% of Partners' Capital		(0.09%)		(0.05%)
Futures Contracts [Member] | Short [Member] | Energy [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		42		6
Net unrealized appreciation (depreciation) on open contracts		$ (20,070)		$ (7,210)
% of Partners' Capital		(0.04%)		(0.01%)
Futures Contracts [Member] | Short [Member] | Grains [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		168		420
Net unrealized appreciation (depreciation) on open contracts		$ (95,112)		$ (11,395)
% of Partners' Capital		(0.18%)		(0.02%)
Futures Contracts [Member] | Short [Member] | Indices [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		2		565
Net unrealized appreciation (depreciation) on open contracts		$ 716		$ 7,727
% of Partners' Capital		0.00%	[2]	0.01%
Futures Contracts [Member] | Short [Member] | Interest Rates U.S. [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		4		86
Net unrealized appreciation (depreciation) on open contracts		$ 312		$ (9,600)
% of Partners' Capital		0.00%	[2]	(0.02%)
Futures Contracts [Member] | Short [Member] | Interest Rates Non-U.S. [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		235		62
Net unrealized appreciation (depreciation) on open contracts		$ 68,098		$ (25,156)
% of Partners' Capital		0.13%		(0.04%)
Futures Contracts [Member] | Short [Member] | Metals [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		8		9
Net unrealized appreciation (depreciation) on open contracts		$ (4,330)		$ 3,860
% of Partners' Capital		(0.01%)		0.01%
Forward Contracts [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 90,842
Total unrealized depreciation on open contracts		(46,276)
Net unrealized appreciation (depreciation) on open contracts		$ 44,566
Percentage of Partners' Capital		0.17%
Percentage of Partners' Capital		(0.09%)
% of Partners' Capital		0.08%
Forward Contracts [Member] | Currencies [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 90,842
Notional Amount		51,991,208
Total unrealized depreciation on open contracts		(46,276)
Notional Amount		$ 34,698,247
Percentage of Partners' Capital		0.17%
Percentage of Partners' Capital		(0.09%)
Limited Partners [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		37.59%		59.21%
Total investment in the Funds		$ 20,093,255		$ 37,830,104
Limited Partners [Member] | SECOR Master Fund L.P. [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		24.17%		29.63%
Total investment in the Funds		$ 12,920,583		$ 18,932,359
Limited Partners [Member] | Cambridge Master Fund L.P. [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		13.42%		23.42%
Total investment in the Funds		$ 7,172,672		$ 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
[1]	Defined in Note 1.
[2]	Due to rounding.

Statements of Income and Expens

Statements of Income and Expenses and Changes in Partners' Capital - USD ($)		Total	Class A Redeemable Units [Member]	Limited Partners [Member]	General Partner [Member]
Net gains (losses) on trading of commodity interests and investment in the Funds:
Net asset value per Redeemable Unit			$ 1,328.16
Interest income		$ 30,852
Interest income allocated from the Funds		57,102
Total investment income		87,954
Expenses allocated from the Funds		234,982
Clearing fees related to direct investments		141,484
Ongoing selling agent fees		896,972
Management fees		669,327
General Partner fees		447,789
Incentive fees		180,449
Professional fees		220,633
Total expenses		2,791,636
Net investment loss		(2,703,682)
Net realized gains (losses) on closed contracts		(830,668)
Net realized gains (losses) on closed contracts allocated from the Funds		(1,177,018)
Net change in unrealized gains (losses) on open contracts		1,005,422
Net change in unrealized gains (losses) on open contracts allocated from the Funds		2,073,232
Total trading results		1,070,968
Net Income (Loss)		(1,632,714)
Subscriptions - Limited Partners				$ 35,000
Redemptions				(13,958,820)	$ (211,129)
Net increase (decrease) in partners' capital		(15,767,663)
Partners' capital, beginning of period at Dec. 31, 2015		94,328,641
Partners' capital, end of period at Jun. 30, 2016		78,560,978
Net gains (losses) on trading of commodity interests and investment in the Funds:
Net income (loss) per Redeemable Unit	[1]		$ (25.56)
Weighted average Redeemable Units outstanding			67,337.2770
Net asset value per Redeemable Unit			$ 1,339.03
Interest income		13,803
Interest income allocated from the Funds		23,547
Total investment income		37,350
Expenses allocated from the Funds		105,830
Clearing fees related to direct investments		69,230
Ongoing selling agent fees		422,835
Management fees		316,655
General Partner fees		211,073
Professional fees		105,867
Total expenses		1,231,490
Net investment loss		(1,194,140)
Net realized gains (losses) on closed contracts		(266,558)
Net realized gains (losses) on closed contracts allocated from the Funds		(1,871,387)
Net change in unrealized gains (losses) on open contracts		275,566
Net change in unrealized gains (losses) on open contracts allocated from the Funds		631,355
Total trading results		(1,231,024)
Net Income (Loss)		(2,425,164)
Subscriptions - Limited Partners				35,000
Redemptions				(7,921,517)	(211,129)
Net increase (decrease) in partners' capital		(10,522,810)
Partners' capital, beginning of period at Mar. 31, 2016		89,083,788
Partners' capital, end of period at Jun. 30, 2016		78,560,978
Net gains (losses) on trading of commodity interests and investment in the Funds:
Net income (loss) per Redeemable Unit	[1]		$ (36.43)
Weighted average Redeemable Units outstanding			64,693.0298
Net asset value per Redeemable Unit			$ 1,302.60
Net asset value per Redeemable Unit			1,254.29
Interest income		110,104
Interest income allocated from the Funds		75,415
Total investment income		185,519
Expenses allocated from the Funds		123,636
Clearing fees related to direct investments		113,074
Ongoing selling agent fees		612,701
Management fees		431,278
General Partner fees		305,437
Incentive fees		94,164
Professional fees		187,904
Total expenses		1,868,194
Net investment loss		(1,682,675)
Net realized gains (losses) on closed contracts		(1,022,124)
Net realized gains (losses) on closed contracts allocated from the Funds		1,895,744
Net change in unrealized gains (losses) on open contracts		(106,420)
Net change in unrealized gains (losses) on open contracts allocated from the Funds		(85,434)
Total trading results		681,766
Net Income (Loss)		(1,000,909)
Subscriptions - Limited Partners				157,041
Redemptions				(9,543,090)	(50,000)
Net increase (decrease) in partners' capital		(10,436,958)
Partners' capital, beginning of period at Dec. 31, 2016		63,890,718
Partners' capital, end of period at Jun. 30, 2017		53,453,760
Net gains (losses) on trading of commodity interests and investment in the Funds:
Net income (loss) per Redeemable Unit	[1]		$ (22.86)
Weighted average Redeemable Units outstanding			48,436.1743
Net asset value per Redeemable Unit			$ 1,259.27
Interest income		66,202
Interest income allocated from the Funds		39,723
Total investment income		105,925
Expenses allocated from the Funds		63,094
Clearing fees related to direct investments		71,647
Ongoing selling agent fees		295,374
Management fees		213,801
General Partner fees		147,198
Incentive fees		33,010
Professional fees		94,148
Total expenses		918,272
Net investment loss		(812,347)
Net realized gains (losses) on closed contracts		(1,151,671)
Net realized gains (losses) on closed contracts allocated from the Funds		1,435,429
Net change in unrealized gains (losses) on open contracts		(239,889)
Net change in unrealized gains (losses) on open contracts allocated from the Funds		(495,607)
Total trading results		(451,738)
Net Income (Loss)		(1,264,085)
Subscriptions - Limited Partners				78,041
Redemptions				$ (5,871,372)	$ (50,000)
Net increase (decrease) in partners' capital		(7,107,416)
Partners' capital, beginning of period at Mar. 31, 2017		60,561,176
Partners' capital, end of period at Jun. 30, 2017		$ 53,453,760
Net gains (losses) on trading of commodity interests and investment in the Funds:
Net income (loss) per Redeemable Unit	[1]		$ (27.84)
Weighted average Redeemable Units outstanding			46,921.9583
Net asset value per Redeemable Unit			$ 1,231.43
[1]	Represents the change in net asset value per Redeemable Unit during the period.

Statements of Income and Expen6

Statements of Income and Expenses and Changes in Partners' Capital (Parenthetical) - shares	Jun. 30, 2017	Jun. 30, 2016
Class A Redeemable Units [Member]
Redeemable units outstanding	43,407.8196	60,310.8158

Organization

Organization	6 Months Ended
	Jun. 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 investments 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 June 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. As of June 30, 2017, there were no Redeemable Units outstanding in Class D or Class Z. Class Z Redeemable Units were first issued on July 1, 2017. 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 June 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”) 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 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. Cambridge Master Fund L.P (“Cambridge 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. SECOR Master Fund L.P (“SECOR Master”) has entered into a futures brokerage account agreement 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, 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	6 Months Ended
	Jun. 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 June 30, 2017 and the results of its operations and changes in partners’ capital for the three and six months ended June 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 and Changes in Partners’ Capital. 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	6 Months Ended
	Jun. 30, 2017
Text Block [Abstract]
Financial Highlights	3. Financial Highlights: Financial highlights for the limited partner class as a whole for the three and six months ended June 30, 2017 and 2016 were as follows: Class A Three Months Ended June 30, Six Months Ended 2017 2016 2017 2016 Per Redeemable Unit Performance (for a unit outstanding throughout the period): * Net realized and unrealized gains (losses) $ (10.53) $ (17.97) $ 11.88 $ 14.59 Net investment loss (17.31) (18.46) (34.74) (40.15) Increase (decrease) for the period (27.84) (36.43) (22.86) (25.56) Net asset value per Redeemable Unit, beginning of period 1,259.27 1,339.03 1,254.29 1,328.16 Net asset value per Redeemable Unit, end of period $ 1,231.43 $ 1,302.60 $ 1,231.43 $ 1,302.60 Ratios to Average Limited Partners’ Capital:** Net investment loss *** (5.5)% (5.8)% (5.6)% (6.0)% Operating expenses 6.2% 5.9% 6.0% 6.0% Incentive fees 0.1% 0.0% 0.2% 0.2% Total expenses 6.3% 5.9% 6.2% 6.2% Total return: Total return before incentive fees (2.1)% (2.7)% (1.6)% (1.7)% Incentive fees (0.1)% 0.0% (0.2)% (0.2)% Total return after incentive fees (2.2)% (2.7)% (1.8)% (1.9)% * Net investment loss per Redeemable Unit is calculated by dividing the interest income less total expenses by the average number of Redeemable Units outstanding during the period. The net realized and unrealized gains (losses) per Redeemable Unit is a balancing amount necessary to reconcile the change in net asset value per Redeemable Unit with the other per unit information. ** Annualized (except for incentive fees). *** Interest income less total expenses. 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	6 Months Ended
	Jun. 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 and Changes in Partners’ Capital. 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 June 30, 2017 and 2016 were 2,227 and 3,358, respectively. The monthly average number of futures contracts traded directly by the Partnership during the six months ended June 30, 2017 and 2016 were 2,417 and 3,159, respectively. The Partnership did not trade option contracts directly during the three months ended June 30, 2017 and 2016. The monthly average number of option contracts traded directly by the Partnership during the six months ended June 30, 2017 and 2016 were 40 and 0, respectively. The monthly average notional value of currency forward contracts traded directly by the Partnership during the three months ended June 30, 2017 and 2016 were $71,634,860 and $25,558,438, respectively. The monthly average notional value of currency forward contracts traded directly by the Partnership during the six months ended June 30, 2017 and 2016 were $48,482,124 and $24,778,199, 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 June 30, 2017 and December 31, 2016, respectively. Gross Amounts Amounts Gross Amounts Not Offset in the June 30, 2017 Gross Statements of Statements of Financial Cash Collateral Net Amount Assets Futures $ 366,145 $ (366,145) $ - $ - $ - $ - Forwards 90,842 (46,276) 44,566 - - 44,566 Total assets $ 456,987 $ (412,421) $ 44,566 $ - $ - $ 44,566 Liabilities Futures $ (490,580) $ 366,145 $ (124,435) $ - $ - $ (124,435 ) Forwards (46,276) 46,276 - - - - Total liabilities $ (536,856) $ 412,421 $ (124,435) $ - $ - $ (124,435 ) Net Fair Value $ (79,869 )* Gross Amounts Amounts Gross Amounts Not Offset in the December 31, 2016 Gross Statements of Statements of Financial Cash Collateral 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 The following tables indicate the gross fair values of derivative instruments of futures and forward contracts, as applicable, held directly by the Partnership as separate assets and liabilities as of June 30, 2017 and December 31, 2016, respectively. Assets June 30, 2017 Futures Contracts Currencies $ 10,205 Energy 103,410 Grains 75,584 Indices 32,483 Interest Rates U.S. 5,875 Interest Rates Non-U.S. 68,098 Livestock 9,150 Metals 40,055 Softs 21,285 Total unrealized appreciation on open futures contracts 366,145 Liabilities Futures Contracts Currencies (82,835) Energy (21,760) Grains (98,149) Indices (122,447) Interest Rates U.S. (43,297) Interest Rates Non-U.S. (54,351) Livestock (42,230) Metals (16,365) Softs (9,146) Total unrealized depreciation on open futures contracts (490,580) Net unrealized depreciation on open futures contracts $ (124,435) * Assets Forward Contracts Currencies $ 90,842 Total unrealized appreciation on open forward contracts 90,842 Liabilities Forward Contracts Currencies (46,276) Total unrealized depreciation on open forward contracts (46,276) Net unrealized appreciation on open forward contracts $ 44,566 ** * 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. Assets December 31, 2016 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 six months ended June 30, 2017 and 2016, respectively. Three Months Ended June 30, Six Months Ended June 30, Sector 2017 2016 2017 2016 Currencies $ (63,058) $ (73,625) $ 129,355 $ 503,355 Energy 94,345 (146,462) (184,190) 56,563 Grains (499,696) (48,739) (799,052) (45,619) Indices (624,970) (244,059) 334,910 82,097 Interest Rates U.S. (64,844) (642,244) (253,219) (1,312,257) Interest Rates Non-U.S. 10,084 1,240,488 118,848 1,372,865 Livestock 205,740 2,658 90,920 415 Metals (246,515) (71,068) (235,212) (477,678) Softs (202,646) (7,941) (330,904) (4,987) Total $ (1,391,560) *** $ 9,008 *** $ (1,128,544) *** $ 174,754 *** *** This amount is included in “Total trading results” in the Partnership’s Statements of Income and Expenses and Changes in Partners’ Capital.

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 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 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 June 30, 2017 Total Level 1 Level 2 Level 3 Assets Futures $ 366,145 $ 366,145 $ - $ - Forwards 90,842 - 90,842 - Total assets $ 456,987 $ 366,145 $ 90,842 $ - Liabilities Futures $ 490,580 $ 490,580 $ - $ - Forwards 46,276 - 46,276 - Total liabilities $ 536,856 $ 490,580 $ 46,276 $ - 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	6 Months Ended
	Jun. 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. The Partnership invested in Cambridge Master with cash equal to $3,000,000. 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. The Partnership invested in SECOR Master with cash equal to $10,000,000. 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. 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. The Partnership purchased 14,103.3175 units of Willowbridge Master with cash equal to $29,484,306. Effective February 28, 2017, the Partnership fully redeemed its investment in Willowbridge Master for cash equal to $1,107,381. The General Partner is not aware of any material changes to any of the trading programs discussed above during the fiscal quarter ended June 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 June 30, 2017, the Partnership owned approximately 40.2% of SECOR Master and 15.9% 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: June 30, 2017 Total Assets Total Liabilities Total Partners’ Capital SECOR Master $ 33,757,737 $ 1,653,435 $ 32,104,302 Cambridge Master 45,122,966 39,161 45,083,805 December 31, 2016 Total Assets Total Liabilities Total Partners’ Capital 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 June 30, 2017 Net Investment Income (Loss) Total Trading Results Net Income (Loss) SECOR Master $ (3,651) $ 1,708,773 $ 1,705,122 Cambridge Master 44,132 937,924 982,056 For the six months ended June 30, 2017 Net Investment Income (Loss) Total Trading Results Net Income (Loss) SECOR Master $ (14,054) $ 1,379,449 $ 1,365,395 Cambridge Master 63,518 5,659,416 5,722,934 Willowbridge Master (a) 155,028 (5,302,674) (5,147,646) For the three months ended June 30, 2016 Net Investment Income (Loss) Total Trading Results Net Income (Loss) SECOR Master $ (67,063) $ (820,318) $ (887,381) Cambridge Master (2,337) (2,101,071) (2,103,408) Willowbridge Master (74,889) (8,464,297) (8,539,186) For the six months ended June 30, 2016 Net Investment Income (Loss) Total Trading Results Net Income (Loss) SECOR Master $ (145,724) $ 393,562 $ 247,838 Cambridge Master 7,573 2,578,583 2,586,156 Willowbridge Master (184,455) (10,557,807) (10,742,262) (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 June 30, 2017 For the three months ended June 30, 2017 % of Expenses Net Funds Partners’ Fair Value Income (Loss) Clearing Professional Income (Loss) Investment Objective Redemptions SECOR Master 24.17 % $ 12,920,583 $ 796,932 $ 50,711 $ 6,726 $ 739,495 Commodity Portfolio Monthly Cambridge Master 13.42 % 7,172,672 182,613 3,012 2,645 176,956 Commodity Portfolio Monthly Total $ 20,093,255 $ 979,545 $ 53,723 $ 9,371 $ 916,451 June 30, 2017 For the six months ended June 30, 2017 % of Expenses Net Funds Partners’ Fair Value Income (Loss) Clearing Professional Income (Loss) Investment Redemptions SECOR Master 24.17 % $ 12,920,583 $ 688,490 $ 93,163 $ 13,909 $ 581,418 Commodity Portfolio Monthly Cambridge Master 13.42 % 7,172,672 1,208,774 9,945 5,945 1,192,884 Commodity Portfolio Monthly Willowbridge Master (a) 0.00 % - (11,539 ) 612 62 (12,213 ) Commodity Portfolio Monthly Total $ 20,093,255 $ 1,885,725 $ 103,720 $ 19,916 $ 1,762,089 December 31, 2016 For the three months ended June 30, 2016 % of Expenses Net Funds Partners’ Fair Value Income (Loss) Clearing Professional Income (Loss) Investment Redemptions SECOR Master 29.63 % $ 18,932,359 $ (336,196 ) $ 78,264 $ 8,330 $ (422,790 ) Commodity Portfolio Monthly Cambridge Master 23.42 % 14,960,410 (661,887 ) 5,972 6,557 (674,416 ) Commodity Portfolio Monthly Willowbridge Master 6.16 % 3,937,335 (218,402 ) 6,173 534 (225,109 ) Commodity Portfolio Monthly Total $ 37,830,104 $ (1,216,485) $ 90,409 $ 15,421 $ (1,322,315) December 31, 2016 For the six months ended June 30, 2016 % of Expenses Net Funds Partners’ Fair Value Income (Loss) Clearing Professional Income (Loss) Investment Redemptions SECOR Master 29.63 % $ 18,932,359 $ 242,239 $ 174,428 $ 17,053 $ 50,758 Commodity Portfolio Monthly Cambridge Master 23.42 % 14,960,410 959,917 12,681 13,636 933,600 Commodity Portfolio Monthly Willowbridge Master 6.16 % 3,937,335 (248,840 ) 15,974 1,210 (266,024 ) Commodity Portfolio Monthly Total $ 37,830,104 $ 953,316 $ 203,083 $ 31,899 $ 718,334 (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	6 Months Ended
	Jun. 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 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. or an MS&Co. affiliate is the sole counterparty or broker 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	6 Months Ended
	Jun. 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, other than that described below, there were no subsequent events requiring adjustment to or disclosure in the financial statements. Class Z Redeemable Units were first issued on July 1, 2017. 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 master 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 master funds each acts as advisor to. Under each FX Agreement, JPMorgan will charge a fee on the aggregate foreign currency transactions entered into on behalf of the respective Fund during a month.

Basis of Presentation and Sum15

Basis of Presentation and Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 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 and Changes in Partners’ Capital.
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)	6 Months Ended
	Jun. 30, 2017
Text Block [Abstract]
Financial Highlights	Financial highlights for the limited partner class as a whole for the three and six months ended June 30, 2017 and 2016 were as follows: Class A Three Months Ended June 30, Six Months Ended 2017 2016 2017 2016 Per Redeemable Unit Performance (for a unit outstanding throughout the period): * Net realized and unrealized gains (losses) $ (10.53) $ (17.97) $ 11.88 $ 14.59 Net investment loss (17.31) (18.46) (34.74) (40.15) Increase (decrease) for the period (27.84) (36.43) (22.86) (25.56) Net asset value per Redeemable Unit, beginning of period 1,259.27 1,339.03 1,254.29 1,328.16 Net asset value per Redeemable Unit, end of period $ 1,231.43 $ 1,302.60 $ 1,231.43 $ 1,302.60 Ratios to Average Limited Partners’ Capital:** Net investment loss *** (5.5)% (5.8)% (5.6)% (6.0)% Operating expenses 6.2% 5.9% 6.0% 6.0% Incentive fees 0.1% 0.0% 0.2% 0.2% Total expenses 6.3% 5.9% 6.2% 6.2% Total return: Total return before incentive fees (2.1)% (2.7)% (1.6)% (1.7)% Incentive fees (0.1)% 0.0% (0.2)% (0.2)% Total return after incentive fees (2.2)% (2.7)% (1.8)% (1.9)% * Net investment loss per Redeemable Unit is calculated by dividing the interest income less total expenses by the average number of Redeemable Units outstanding during the period. The net realized and unrealized gains (losses) per Redeemable Unit is a balancing amount necessary to reconcile the change in net asset value per Redeemable Unit with the other per unit information. ** Annualized (except for incentive fees). *** Interest income less total expenses.

Trading Activities (Tables)

Trading Activities (Tables)	6 Months Ended
	Jun. 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 June 30, 2017 and December 31, 2016, respectively. Gross Amounts Amounts Gross Amounts Not Offset in the June 30, 2017 Gross Statements of Statements of Financial Cash Collateral Net Amount Assets Futures $ 366,145 $ (366,145) $ - $ - $ - $ - Forwards 90,842 (46,276) 44,566 - - 44,566 Total assets $ 456,987 $ (412,421) $ 44,566 $ - $ - $ 44,566 Liabilities Futures $ (490,580) $ 366,145 $ (124,435) $ - $ - $ (124,435 ) Forwards (46,276) 46,276 - - - - Total liabilities $ (536,856) $ 412,421 $ (124,435) $ - $ - $ (124,435 ) Net Fair Value $ (79,869 )* Gross Amounts Amounts Gross Amounts Not Offset in the December 31, 2016 Gross Statements of Statements of Financial Cash Collateral 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
Gross Fair Values of Derivative Instruments of Futures and Forward Contracts Traded	The following tables indicate the gross fair values of derivative instruments of futures and forward contracts, as applicable, held directly by the Partnership as separate assets and liabilities as of June 30, 2017 and December 31, 2016, respectively. Assets June 30, 2017 Futures Contracts Currencies $ 10,205 Energy 103,410 Grains 75,584 Indices 32,483 Interest Rates U.S. 5,875 Interest Rates Non-U.S. 68,098 Livestock 9,150 Metals 40,055 Softs 21,285 Total unrealized appreciation on open futures contracts 366,145 Liabilities Futures Contracts Currencies (82,835) Energy (21,760) Grains (98,149) Indices (122,447) Interest Rates U.S. (43,297) Interest Rates Non-U.S. (54,351) Livestock (42,230) Metals (16,365) Softs (9,146) Total unrealized depreciation on open futures contracts (490,580) Net unrealized depreciation on open futures contracts $ (124,435) * Assets Forward Contracts Currencies $ 90,842 Total unrealized appreciation on open forward contracts 90,842 Liabilities Forward Contracts Currencies (46,276) Total unrealized depreciation on open forward contracts (46,276) Net unrealized appreciation on open forward contracts $ 44,566 ** * 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. Assets December 31, 2016 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 six months ended June 30, 2017 and 2016, respectively. Three Months Ended June 30, Six Months Ended June 30, Sector 2017 2016 2017 2016 Currencies $ (63,058) $ (73,625) $ 129,355 $ 503,355 Energy 94,345 (146,462) (184,190) 56,563 Grains (499,696) (48,739) (799,052) (45,619) Indices (624,970) (244,059) 334,910 82,097 Interest Rates U.S. (64,844) (642,244) (253,219) (1,312,257) Interest Rates Non-U.S. 10,084 1,240,488 118,848 1,372,865 Livestock 205,740 2,658 90,920 415 Metals (246,515) (71,068) (235,212) (477,678) Softs (202,646) (7,941) (330,904) (4,987) Total $ (1,391,560) *** $ 9,008 *** $ (1,128,544) *** $ 174,754 *** *** This amount is included in “Total trading results” in the Partnership’s Statements of Income and Expenses and Changes in Partners’ Capital.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2017
Fair Value Disclosures [Abstract]
Derivative Instruments Priced at Fair Value Using Unobservable Inputs	During the reporting periods, there were no transfers of assets or liabilities between Level 1 and Level 2. June 30, 2017 Total Level 1 Level 2 Level 3 Assets Futures $ 366,145 $ 366,145 $ - $ - Forwards 90,842 - 90,842 - Total assets $ 456,987 $ 366,145 $ 90,842 $ - Liabilities Futures $ 490,580 $ 490,580 $ - $ - Forwards 46,276 - 46,276 - Total liabilities $ 536,856 $ 490,580 $ 46,276 $ - 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)	6 Months Ended
	Jun. 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: June 30, 2017 Total Assets Total Liabilities Total Partners’ Capital SECOR Master $ 33,757,737 $ 1,653,435 $ 32,104,302 Cambridge Master 45,122,966 39,161 45,083,805 December 31, 2016 Total Assets Total Liabilities Total Partners’ Capital 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 June 30, 2017 Net Investment Income (Loss) Total Trading Results Net Income (Loss) SECOR Master $ (3,651) $ 1,708,773 $ 1,705,122 Cambridge Master 44,132 937,924 982,056 For the six months ended June 30, 2017 Net Investment Income (Loss) Total Trading Results Net Income (Loss) SECOR Master $ (14,054) $ 1,379,449 $ 1,365,395 Cambridge Master 63,518 5,659,416 5,722,934 Willowbridge Master (a) 155,028 (5,302,674) (5,147,646) For the three months ended June 30, 2016 Net Investment Income (Loss) Total Trading Results Net Income (Loss) SECOR Master $ (67,063) $ (820,318) $ (887,381) Cambridge Master (2,337) (2,101,071) (2,103,408) Willowbridge Master (74,889) (8,464,297) (8,539,186) For the six months ended June 30, 2016 Net Investment Income (Loss) Total Trading Results Net Income (Loss) SECOR Master $ (145,724) $ 393,562 $ 247,838 Cambridge Master 7,573 2,578,583 2,586,156 Willowbridge Master (184,455) (10,557,807) (10,742,262) (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' Pro Rata Share of Results of Operations of Funds	Summarized information reflecting the Partnership’s investments in and the Partnership’s pro-rata June 30, 2017 For the three months ended June 30, 2017 % of Expenses Net Funds Partners’ Fair Value Income (Loss) Clearing Professional Income (Loss) Investment Objective Redemptions SECOR Master 24.17 % $ 12,920,583 $ 796,932 $ 50,711 $ 6,726 $ 739,495 Commodity Portfolio Monthly Cambridge Master 13.42 % 7,172,672 182,613 3,012 2,645 176,956 Commodity Portfolio Monthly Total $ 20,093,255 $ 979,545 $ 53,723 $ 9,371 $ 916,451 June 30, 2017 For the six months ended June 30, 2017 % of Expenses Net Funds Partners’ Fair Value Income (Loss) Clearing Professional Income (Loss) Investment Redemptions SECOR Master 24.17 % $ 12,920,583 $ 688,490 $ 93,163 $ 13,909 $ 581,418 Commodity Portfolio Monthly Cambridge Master 13.42 % 7,172,672 1,208,774 9,945 5,945 1,192,884 Commodity Portfolio Monthly Willowbridge Master (a) 0.00 % - (11,539 ) 612 62 (12,213 ) Commodity Portfolio Monthly Total $ 20,093,255 $ 1,885,725 $ 103,720 $ 19,916 $ 1,762,089 December 31, 2016 For the three months ended June 30, 2016 % of Expenses Net Funds Partners’ Fair Value Income (Loss) Clearing Professional Income (Loss) Investment Redemptions SECOR Master 29.63 % $ 18,932,359 $ (336,196 ) $ 78,264 $ 8,330 $ (422,790 ) Commodity Portfolio Monthly Cambridge Master 23.42 % 14,960,410 (661,887 ) 5,972 6,557 (674,416 ) Commodity Portfolio Monthly Willowbridge Master 6.16 % 3,937,335 (218,402 ) 6,173 534 (225,109 ) Commodity Portfolio Monthly Total $ 37,830,104 $ (1,216,485) $ 90,409 $ 15,421 $ (1,322,315) December 31, 2016 For the six months ended June 30, 2016 % of Expenses Net Funds Partners’ Fair Value Income (Loss) Clearing Professional Income (Loss) Investment Redemptions SECOR Master 29.63 % $ 18,932,359 $ 242,239 $ 174,428 $ 17,053 $ 50,758 Commodity Portfolio Monthly Cambridge Master 23.42 % 14,960,410 959,917 12,681 13,636 933,600 Commodity Portfolio Monthly Willowbridge Master 6.16 % 3,937,335 (248,840 ) 15,974 1,210 (266,024 ) Commodity Portfolio Monthly Total $ 37,830,104 $ 953,316 $ 203,083 $ 31,899 $ 718,334 (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	6 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Partnership Organization And Basis Of Presentation [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]
Partnership Organization And Basis Of Presentation [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]
Partnership Organization And Basis Of Presentation [Line Items]
Limited Partner Capital Account Redeemable Unit outstanding	0
Class D Redeemable Units [Member] | Selling Agreement [Member]
Partnership Organization And Basis Of Presentation [Line Items]
Annual brokerage fees payable	0.75%
Class Z Redeemable Units [Member]
Partnership Organization And Basis Of Presentation [Line Items]
Limited Partner Capital Account Redeemable Unit outstanding	0
Class A Redeemable Units [Member]
Partnership Organization And Basis Of Presentation [Line Items]
Limited Partner Capital Account Redeemable Unit outstanding	42,874.8230	50,365.0120
Class A Redeemable Units [Member] | Selling Agreement [Member]
Partnership Organization And Basis Of Presentation [Line Items]
Annual brokerage fees payable	2.00%
Maximum [Member]
Partnership Organization And Basis Of Presentation [Line Items]
Percentage of partnership assets allocated	10.00%

Basis of Presentation and Sum21

Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)	6 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Accounting Policies [Abstract]
Cash denominated in foreign currencies	$ (128,102)	$ (265,409)
Cash denominated in foreign currencies, proceeds	$ 126,176	$ 267,759
Income tax examination, description	No income tax returns are currently under examination. The 2013 through 2016 tax years remain subject to examination by U.S. federal and most state tax authorities.

Financial Highlights - Schedule

Financial Highlights - Schedule of Changes in Net Asset Value (Detail) - Class A Redeemable Units [Member] - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Per Redeemable Unit Performance (for a unit outstanding throughout the period):
Net realized and unrealized gains (losses)	$ (10.53)	$ (17.97)	$ 11.88	$ 14.59
Net investment loss	(17.31)	(18.46)	(34.74)	(40.15)
Increase (decrease) for the period	(27.84)	(36.43)	(22.86)	(25.56)
Net asset value per Redeemable Unit, beginning of period	1,259.27	1,339.03	1,254.29	1,328.16
Net asset value per Redeemable Unit, end of period	$ 1,231.43	$ 1,302.60	$ 1,231.43	$ 1,302.60

Financial Highlights - Ratios t

Financial Highlights - Ratios to Average Net Assets (Detail) - Class A Redeemable Units [Member]	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Ratios to Average Limited Partners' Capital:
Net investment loss	(5.50%)	(5.80%)	(5.60%)	(6.00%)
Operating expenses	6.20%	5.90%	6.00%	6.00%
Incentive fees	0.10%	0.00%	0.20%	0.20%
Total expenses	6.30%	5.90%	6.20%	6.20%
Total return:
Total return before incentive fees	(2.10%)	(2.70%)	(1.60%)	(1.70%)
Incentive fees	(0.10%)	(0.00%)	(0.20%)	(0.20%)
Total return after incentive fees	(2.20%)	(2.70%)	(1.80%)	(1.90%)

Trading Activities - Additional

Trading Activities - Additional Information (Detail)	3 Months Ended		6 Months Ended
	Jun. 30, 2017USD ($)Contracts	Jun. 30, 2016USD ($)Contracts	Jun. 30, 2017USD ($)Contracts	Jun. 30, 2016USD ($)Contracts
Futures Contracts [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Monthly average number of derivative contracts traded	2,227	3,358	2,417	3,159
Options Contracts [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Monthly average number of derivative contracts traded	0	0	40	0
Forward Contracts [Member] | Currencies [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Monthly average notional value of derivative | $	$ 71,634,860	$ 25,558,438	$ 48,482,124	$ 24,778,199

Trading Activities - Summary of

Trading Activities - Summary of Gross and Net Amounts Recognized Relating to Assets and Liabilities of Partnership's Derivatives (Detail) - USD ($)	Jun. 30, 2017	Dec. 31, 2016
Derivative [Line Items]
Gross Amounts Recognized, Assets	$ 456,987	$ 365,927
Gross Amounts Offset in the Statements of Financial Condition, Assets	(412,421)	(343,652)
Amounts Presented in the Statements of Financial Condition, Assets	44,566	22,275
Financial Instruments, Assets	0	0
Cash Collateral Received/Pledged, Assets	0	0
Net Amount, Assets	44,566	22,275
Gross Amounts Recognized, Liabilities	(536,856)	(343,652)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	412,421	343,652
Amounts Presented in the Statements of Financial Condition, Liabilities	(124,435)
Financial Instruments, Liabilities	0	0
Cash Collateral Received/Pledged, Liabilities	0	0
Net Amount, Liabilities	(124,435)
Net Fair Value	(79,869)	22,275
Futures Contracts [Member]
Derivative [Line Items]
Gross Amounts Recognized, Assets	366,145	365,927
Gross Amounts Offset in the Statements of Financial Condition, Assets	(366,145)	(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	(490,580)	(343,652)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	366,145	343,652
Amounts Presented in the Statements of Financial Condition, Liabilities	(124,435)
Financial Instruments, Liabilities	0	0
Cash Collateral Received/Pledged, Liabilities	0	$ 0
Net Amount, Liabilities	(124,435)
Forward Contracts [Member]
Derivative [Line Items]
Gross Amounts Recognized, Assets	90,842
Gross Amounts Offset in the Statements of Financial Condition, Assets	(46,276)
Amounts Presented in the Statements of Financial Condition, Assets	44,566
Financial Instruments, Assets	0
Cash Collateral Received/Pledged, Assets	0
Net Amount, Assets	44,566
Gross Amounts Recognized, Liabilities	(46,276)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	46,276
Financial Instruments, Liabilities	0
Cash Collateral Received/Pledged, Liabilities	$ 0

Trading Activities - Gross Fair

Trading Activities - Gross Fair Values of Derivative Instruments of Futures and Forward Contracts Traded (Detail) - USD ($)	Jun. 30, 2017	Dec. 31, 2016
Futures Contracts [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total unrealized appreciation on open contracts	$ 366,145	$ 365,927
Total unrealized depreciation on open contracts	(490,580)	(343,652)
Net unrealized appreciation (depreciation) on open contracts	(124,435)	22,275
Futures Contracts [Member] | Currencies [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total unrealized appreciation on open contracts	10,205	20,075
Total unrealized depreciation on open contracts	(82,835)	(50,048)
Futures Contracts [Member] | Energy [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total unrealized appreciation on open contracts	103,410	10,875
Total unrealized depreciation on open contracts	(21,760)	(9,015)
Futures Contracts [Member] | Grains [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total unrealized appreciation on open contracts	75,584	33,090
Total unrealized depreciation on open contracts	(98,149)	(87,992)
Futures Contracts [Member] | Indices [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total unrealized appreciation on open contracts	32,483	126,605
Total unrealized depreciation on open contracts	(122,447)	(93,336)
Futures Contracts [Member] | Interest Rates U.S. [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total unrealized appreciation on open contracts	5,875	19,212
Total unrealized depreciation on open contracts	(43,297)	(28,812)
Futures Contracts [Member] | Interest Rates Non-U.S. [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total unrealized appreciation on open contracts	68,098	78,347
Total unrealized depreciation on open contracts	(54,351)	(25,482)
Futures Contracts [Member] | Livestock [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total unrealized appreciation on open contracts	9,150	29,680
Total unrealized depreciation on open contracts	(42,230)	(2,900)
Futures Contracts [Member] | Metals [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total unrealized appreciation on open contracts	40,055	16,503
Total unrealized depreciation on open contracts	(16,365)	(33,448)
Futures Contracts [Member] | Softs [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total unrealized appreciation on open contracts	21,285	31,540
Total unrealized depreciation on open contracts	(9,146)	$ (12,619)
Forward Contracts [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total unrealized appreciation on open contracts	90,842
Total unrealized depreciation on open contracts	(46,276)
Net unrealized appreciation (depreciation) on open contracts	44,566
Forward Contracts [Member] | Currencies [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total unrealized appreciation on open contracts	90,842
Total unrealized depreciation on open contracts	$ (46,276)

Trading Activities - Trading Ga

Trading Activities - Trading Gains and Losses by Market Sector on Derivative Instruments Traded (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Trading Activity, Gains and Losses, Net [Line Items]
Total Trading Results	$ (451,738)	$ (1,231,024)	$ 681,766	$ 1,070,968
Derivative [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total Trading Results	(1,391,560)	9,008	(1,128,544)	174,754
Derivative [Member] | Currencies [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total Trading Results	(63,058)	(73,625)	129,355	503,355
Derivative [Member] | Energy [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total Trading Results	94,345	(146,462)	(184,190)	56,563
Derivative [Member] | Grains [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total Trading Results	(499,696)	(48,739)	(799,052)	(45,619)
Derivative [Member] | Indices [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total Trading Results	(624,970)	(244,059)	334,910	82,097
Derivative [Member] | Interest Rates U.S. [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total Trading Results	(64,844)	(642,244)	(253,219)	(1,312,257)
Derivative [Member] | Interest Rates Non-U.S. [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total Trading Results	10,084	1,240,488	118,848	1,372,865
Derivative [Member] | Livestock [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total Trading Results	205,740	2,658	90,920	415
Derivative [Member] | Metals [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total Trading Results	(246,515)	(71,068)	(235,212)	(477,678)
Derivative [Member] | Softs [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total Trading Results	$ (202,646)	$ (7,941)	$ (330,904)	$ (4,987)

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail)	Jun. 30, 2017USD ($)DerivativeInstrument	Dec. 31, 2016USD ($)DerivativeInstrument
Assets And Liabilities Carrying Value And Fair Value [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]
Assets And Liabilities Carrying Value And Fair Value [Line Items]
Derivative instruments held | DerivativeInstrument	0	0

Fair Value Measurements - Deriv

Fair Value Measurements - Derivative Instruments Priced at Fair Value Using Unobservable Inputs (Detail) - USD ($)	Jun. 30, 2017	Dec. 31, 2016
Assets
Total assets	$ 456,987	$ 365,927
Liabilities
Total liabilities	536,856	343,652
Futures Contracts [Member]
Assets
Total assets	366,145	365,927
Liabilities
Total liabilities	490,580	343,652
Forward Contracts [Member]
Assets
Total assets	90,842
Liabilities
Total liabilities	46,276
Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1) [Member]
Assets
Total assets	366,145	365,927
Liabilities
Total liabilities	490,580	343,652
Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1) [Member] | Futures Contracts [Member]
Assets
Total assets	366,145	365,927
Liabilities
Total liabilities	490,580	$ 343,652
Significant Other Observable Inputs (Level 2) [Member]
Assets
Total assets	90,842
Liabilities
Total liabilities	46,276
Significant Other Observable Inputs (Level 2) [Member] | Forward Contracts [Member]
Assets
Total assets	90,842
Liabilities
Total liabilities	$ 46,276

Investment in the Funds - Addit

Investment in the Funds - Additional Information (Detail) - USD ($)	Feb. 28, 2017	Aug. 01, 2013	Jan. 01, 2013	Sep. 01, 2012	Jun. 30, 2017	Dec. 31, 2016
SECOR [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 times
Minimum [Member] | Cambridge [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]
Cash paid for units purchased by partnership				$ 3,000,000
Percentage owned by partnership					15.90%	26.20%
CMF Willowbridge Master Fund L.P. [Member]
Investment [Line Items]
Cash paid for units purchased by partnership			$ 29,484,306
Number of units purchased by partnership			14,103.3175
Cash redemption on investment	$ 1,107,381
Percentage owned by partnership					1.00%
SECOR Master Fund L.P. [Member]
Investment [Line Items]
Cash paid for units purchased by partnership		$ 10,000,000
Percentage owned by partnership					40.20%	49.10%

Investment in the Funds - Asset

Investment in the Funds - Assets, Liabilities and Partners' Capital of Funds (Detail) - USD ($)	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015
Investment Holdings [Line Items]
Total assets	$ 56,230,765		$ 67,541,872
Total Liabilities	2,777,005		3,651,154
Total Partners' Capital	53,453,760	$ 60,561,176	63,890,718	$ 78,560,978	$ 89,083,788	$ 94,328,641
SECOR Master Fund L.P. [Member]
Investment Holdings [Line Items]
Total assets	33,757,737		39,231,542
Total Liabilities	1,653,435		679,104
Total Partners' Capital	32,104,302		38,552,438
Cambridge Master Fund L.P. [Member]
Investment Holdings [Line Items]
Total assets	45,122,966		58,282,466
Total Liabilities	39,161		1,125,600
Total Partners' Capital	$ 45,083,805		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		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Investment [Line Items]
Net Investment Income (Loss)	$ (812,347)	$ (1,194,140)	$ (1,682,675)	$ (2,703,682)
Total Trading Results	(451,738)	(1,231,024)	681,766	1,070,968
Net income (loss)	(1,264,085)	(2,425,164)	(1,000,909)	(1,632,714)
SECOR Master Fund L.P. [Member]
Investment [Line Items]
Net Investment Income (Loss)	(3,651)	(67,063)	(14,054)	(145,724)
Total Trading Results	1,708,773	(820,318)	1,379,449	393,562
Net income (loss)	1,705,122	(887,381)	1,365,395	247,838
Cambridge Master Fund L.P. [Member]
Investment [Line Items]
Net Investment Income (Loss)	44,132	(2,337)	63,518	7,573
Total Trading Results	937,924	(2,101,071)	5,659,416	2,578,583
Net income (loss)	$ 982,056	(2,103,408)	5,722,934	2,586,156
CMF Willowbridge Master Fund L.P. [Member]
Investment [Line Items]
Net Investment Income (Loss)		(74,889)	155,028	(184,455)
Total Trading Results		(8,464,297)	(5,302,674)	(10,557,807)
Net income (loss)		$ (8,539,186)	$ (5,147,646)	$ (10,742,262)

Investment in the Funds - Partn

Investment in the Funds - Partnership's Investments in and Partnership' Pro Rata Share of Results of Operations of Funds (Detail) - USD ($)		3 Months Ended		6 Months Ended
		Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Investment Holdings [Line Items]
Fair Value	[1]	$ 20,093,255		$ 20,093,255		$ 37,830,104
Income (Loss)		(451,738)	$ (1,231,024)	681,766	$ 1,070,968
Expenses, Clearing Fees		71,647	69,230	113,074	141,484
Expenses, Professional fees		94,148	105,867	187,904	220,633
Net Income (Loss)		(1,264,085)	(2,425,164)	(1,000,909)	(1,632,714)
Investment in Funds [Member]
Investment Holdings [Line Items]
Fair Value		20,093,255	37,830,104	20,093,255	37,830,104
Income (Loss)		979,545	(1,216,485)	1,885,725	953,316
Expenses, Clearing Fees		53,723	90,409	103,720	203,083
Expenses, Professional fees		9,371	15,421	19,916	31,899
Net Income (Loss)		$ 916,451	$ (1,322,315)	$ 1,762,089	$ 718,334
Investment in Funds [Member] | Commodity Portfolio [Member] | SECOR Master Fund L.P. [Member]
Investment Holdings [Line Items]
Percentage of Partnership's Net Assets		24.17%	29.63%	24.17%	29.63%
Fair Value		$ 12,920,583	$ 18,932,359	$ 12,920,583	$ 18,932,359
Income (Loss)		796,932	(336,196)	688,490	242,239
Expenses, Clearing Fees		50,711	78,264	93,163	174,428
Expenses, Professional fees		6,726	8,330	13,909	17,053
Net Income (Loss)		$ 739,495	$ (422,790)	$ 581,418	$ 50,758
Investment Objective		Commodity Portfolio		Commodity Portfolio
Redemptions Permitted		Monthly		Monthly
Investment in Funds [Member] | Commodity Portfolio [Member] | Cambridge Master Fund L.P. [Member]
Investment Holdings [Line Items]
Percentage of Partnership's Net Assets		13.42%	23.42%	13.42%	23.42%
Fair Value		$ 7,172,672	$ 14,960,410	$ 7,172,672	$ 14,960,410
Income (Loss)		182,613	(661,887)	1,208,774	959,917
Expenses, Clearing Fees		3,012	5,972	9,945	12,681
Expenses, Professional fees		2,645	6,557	5,945	13,636
Net Income (Loss)		$ 176,956	$ (674,416)	$ 1,192,884	$ 933,600
Investment Objective		Commodity Portfolio		Commodity Portfolio
Redemptions Permitted		Monthly		Monthly
Investment in Funds [Member] | Commodity Portfolio [Member] | 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
Income (Loss)			(218,402)	$ (11,539)	(248,840)
Expenses, Clearing Fees			6,173	612	15,974
Expenses, Professional fees			534	62	1,210
Net Income (Loss)			$ (225,109)	$ (12,213)	$ (266,024)
Investment Objective				Commodity Portfolio
Redemptions Permitted				Monthly
[1]	Defined in Note 1.

Financial Instrument Risks - Ad

Financial Instrument Risks - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2017
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Financial instruments maturity period	1 year
Minimum [Member] | Credit Concentration Risk [Member] | Partnership's/Funds' Contracts [Member] | Over the Counter [Member]
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Concentration risk percentage	40.20%
Maximum [Member] | Credit Concentration Risk [Member] | Partnership's/Funds' Contracts [Member] | Over the Counter [Member]
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Concentration risk percentage	55.90%