Emerging Cta Portfolio 10-Q 13 May 15 2015 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Mar. 31, 2015	Apr. 30, 2015
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	FALSE
Document Period End Date	31-Mar-15
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Trading Symbol	CTA
Entity Registrant Name	EMERGING CTA PORTFOLIO LP
Entity Central Index Key	1269190
Current Fiscal Year End Date	-19
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		78,847.13

Statements_of_Financial_Condit

Statements of Financial Condition (USD $)	Mar. 31, 2015		Dec. 31, 2014
Assets:
Investment in Funds, at fair value	$90,018,739	[1]	$93,426,730	[1]
Equity in trading account:
Cash	25,216,068		25,786,501
Cash margin	1,417,178
Total trading equity	116,651,985		119,213,231
Interest receivable	177		152
Total assets	116,652,162		119,213,383
Liabilities:
Net unrealized depreciation on open futures contracts	6,861
Options premium received, at fair value (premium $211,410 and $0 at March 31, 2015 and December 31, 2014, respectively)	306,697
Accrued expenses:
Ongoing selling agent fees	193,898		198,685
Management fees	147,574		151,108
Administrative fees	96,857		99,297
Incentive fees	752,252		2,102,114
General Partner incentive fees	33,177
Clearing fees due to MS&Co.			2,151
Other	109,267		54,096
Redemptions payable to General Partner	75,907
Redemptions payable to Limited Partners	2,930,874		1,977,940
Total liabilities	4,653,364		4,585,391
Partners' Capital:
General Partner, 887.3866 and 942.3886 Class A Redeemable Units outstanding at March 31, 2015 and December 31, 2014, respectively	1,224,658		1,276,279
Limited Partners, 80,266.8682 and 83,697.5332 Class A Redeemable Units outstanding at March 31, 2015 and December 31, 2014, respectively	110,774,140		113,351,713
Total partners' capital	111,998,798		114,627,992
Total liabilities and partners' capital	$116,652,162		$119,213,383
Net asset value per unit, Class A	$1,380.07		$1,354.30
[1]	Defined in Note 1.

Statements_of_Financial_Condit1

Statements of Financial Condition (Parenthetical) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Options premium received, at fair value	$211,410	$0
General Partner Class A Capital, Redeemable Units outstanding	887.3866	942.3886
Limited Partner Capital Account Redeemable Unit outstanding	80,266.87	83,697.53

Condensed_Schedule_of_Investme

Condensed Schedule of Investments (USD $)	Mar. 31, 2015		Dec. 31, 2014
Total Futures Contracts Purchased	$135
Total Futures Contracts Sold	-6,996
Net unrealized appreciation (depreciation) on open contracts	-6,861
Total Options Premium Received	-306,697
Total Investment in Funds	90,018,739	[1]	93,426,730	[1]
Net fair value	89,705,181		93,426,730
Futures Contracts Purchased	0.00%	[2]
Futures Contracts Sold	-0.01%
Net unrealized depreciation on open futures contracts	-0.01%
Options Premium Received	-0.27%
Investment in Funds	80.37%		81.50%
Net fair value	80.09%		81.50%
Blackwater Master Fund L.P. [Member]
Total Investment in Funds	2,279,877		3,980,034
Investment in Funds	2.03%		3.47%
SECOR Master Fund L.P. [Member]
Total Investment in Funds	26,833,657		29,604,763
Investment in Funds	23.96%		25.83%
Cambridge Master Fund L.P. [Member]
Total Investment in Funds	26,280,989		26,708,570
Investment in Funds	23.46%		23.30%
CMF Willowbridge Master Fund L.P. [Member]
Total Investment in Funds	13,065,547		12,341,418
Investment in Funds	11.67%		10.76%
PGM Master Fund L.P. [Member]
Total Investment in Funds	21,558,669		20,791,945
Investment in Funds	19.25%		18.14%
Net fair value	19.25%
Energy [Member]
Number of Future Contracts Purchased	3
Total Futures Contracts Purchased	-123
Futures Contracts Purchased	0.00%	[2]
Energy [Member] | Put [Member]
Number of Options Premium Received	202
Total Options Premium Received	-306,697
Options Premium Received	-0.27%
Currencies [Member]
Number Futures Contracts Sold	24
Total Futures Contracts Sold	-8,536
Futures Contracts Sold	-0.01%
Grains [Member]
Number of Future Contracts Purchased	6
Number Futures Contracts Sold	8
Total Futures Contracts Purchased	878
Total Futures Contracts Sold	2,593
Futures Contracts Purchased	0.00%	[2]
Futures Contracts Sold	0.00%	[2]
Indices [Member]
Number of Future Contracts Purchased	9
Number Futures Contracts Sold	14
Total Futures Contracts Purchased	13
Total Futures Contracts Sold	2,678
Futures Contracts Purchased	0.00%	[2]
Futures Contracts Sold	0.00%	[2]
Interest Rates Non-U.S. [Member]
Number of Future Contracts Purchased	1
Number Futures Contracts Sold	15
Total Futures Contracts Purchased	-301
Total Futures Contracts Sold	-1,762
Futures Contracts Purchased	0.00%	[2]
Futures Contracts Sold	0.00%	[2]
Softs [Member]
Number of Future Contracts Purchased	1
Total Futures Contracts Purchased	-332
Futures Contracts Purchased	0.00%	[2]
Interest Rates U.S. [Member]
Number Futures Contracts Sold	3
Total Futures Contracts Sold	($1,969)
Futures Contracts Sold	0.00%	[2]
[1]	Defined in Note 1.
[2]	Due to rounding

Statements_of_Income_and_Expen

Statements of Income and Expenses and Changes in Partners' Capital (USD $)	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Investment Income:
Interest income	$583		$2,017
Interest income allocated from Funds	1,924		10,017
Total investment income	2,507		12,034
Expenses:
Clearing fees related to direct investments	52,347		54,672
Expenses allocated from Funds	215,443		323,398
Ongoing selling agent fees	583,574		1,330,076
Management fees	442,575		509,775
Administrative fees	291,623		189,866
Incentive fees	752,253		-12,209
General Partner incentive fees	33,177
Other	160,628		65,447
Total expenses	2,531,620		2,461,025
Net investment income (loss)	-2,529,113		-2,448,991
Trading Results:
Net realized gains (losses) on closed contracts	-638,735		-2,524,070
Net realized gains (losses) on closed contracts allocated from Funds	8,295,818		-4,446,921
Change in net unrealized gains (losses) on open contracts	-102,148		368,402
Change in net unrealized gains (losses) on open contracts allocated from Funds	-2,854,600		-5,455,616
Total trading results	4,700,335		-12,058,205
Net income (loss)	2,171,222		-14,507,196
Subscriptions - Limited Partners	1,520,000		3,540,007
Redemptions - General Partner	-75,907
Redemptions - Limited Partners	-6,244,509		-13,856,617
Net increase (decrease) in Partners' Capital	-2,629,194		-24,823,806
Partners' Capital, beginning of period	114,627,992		162,121,688
Partners' Capital, end of period	$111,998,798		$137,297,882
Net asset value per unit, Class A (81,154.2548 and 111, 631.7508 units outstanding at March 31, 2015 and 2014, respectively)	$1,380.07		$1,229.92
Net income (loss) per unit, Class A	$25.77	[1]	($120.48)	[1]
Weighted average Class A units outstanding	84,079.21		120,227.52
[1]	Represents the change in net asset value per unit during the period.

Statements_of_Income_and_Expen1

Statements of Income and Expenses and Changes in Partners' Capital (Parenthetical)	Mar. 31, 2015	Mar. 31, 2014
Income Statement [Abstract]
Partners' capital units outstanding	81,154.25	111,631.75

Organization

Organization	3 Months Ended
	Mar. 31, 2015
Accounting Policies [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, in speculative trading of a diversified portfolio of commodity interests, including futures, option on futures, forward, option on forward, spot and swap contracts, cash commodities and any other rights or interest pertaining thereto. The Partnership may also enter into swap and other derivative transactions with the approval of the General Partner (defined below). The sectors traded include currencies, livestock, lumber, energy, grains, metals, indices, softs and U.S. and non-U.S. interest rates. The Partnership directly and through its investment in the Funds (defined below) may trade futures, forward and option contracts of any kind. The Partnership may also engage in swap transactions and other derivative transactions directly and through its investments in the Funds with the approval of the General Partner. The commodity interests that are traded by the Partnership and the Funds are volatile and involve a high degree of market risk. The General Partner may also determine to invest up to all of the Partnership’s assets in United States Treasury bills.
	Between December 1, 2003 (commencement of the offering period) and August 5, 2004, 20,872 units of 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 in the Partnership 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. The General Partner is wholly owned by Morgan Stanley Smith Barney Holdings LLC (“MSSB Holdings”). MSSB 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 June 28, 2013, Morgan Stanley indirectly owned a majority equity interest in MSSB Holdings and Citigroup Inc. indirectly owned a minority equity interest in MSSB Holdings. Prior to July 31, 2009, the date as of which MSSB Holdings became its owner, the General Partner was wholly owned by Citigroup Financial Products Inc., a wholly owned subsidiary of Citigroup Global Markets Holdings Inc., the sole owner of which is Citigroup Inc.
	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 (each a “Limited Partner”) 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 March 31, 2015, there were no Redeemable Units outstanding in Class D or Class Z.
	As of March 31, 2015, all trading decisions were 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 March 31, 2015, Blackwater Capital Management, LLC (“Blackwater”), The Cambridge Strategy (Asset Management) Limited (“Cambridge”), Centurion Investment Management, LLC (“Centurion”), Perella Weinberg Partners Capital Management LP (“Perella”), SECOR Capital Advisors, LP (“SECOR”) and Willowbridge Associates Inc. (“Willowbridge”) served as the Partnership’s major commodity trading advisors. In addition, the General Partner has allocated the Partnership’s assets to additional non-major trading advisors (i.e. commodity trading advisors intended to be allocated less than 10% of the Partnership’s assets). Information about advisors allocated less than 10% of the Partnership’s assets may not be disclosed. The General Partner may allocate less than 10% of the Partnership’s assets to a new trading advisor or another trading program of a current Advisor. The Advisors are not affiliated with one another, are not affiliated with the General Partner or Morgan Stanley & Co. LLC (“MS&Co.”), and are not responsible for the organization or operation of the Partnership. References herein to the “Advisors” may also include, as relevant, reference to 300 North Capital LLC (“300 North Capital”) and Principle Capital Management LLC (“Principle”).
	During the three months ended March 31, 2015, the Partnerhip’s/Funds’ commodity broker was MS&Co., a registered futures commission merchant.
	The assets allocated to Centurion for trading are invested directly pursuant to Centurion’s Short Term Systematic Strategy Program.
	Cambridge Master Fund, L.P. (“Cambridge Master”), CMF Willowbridge Master Fund L.P. (“Willowbridge Master”), PGM Master Fund L.P. (“PGM Master”), SECOR Master Fund L.P (“SECOR Master”) and Blackwater Master Fund L.P. (“Blackwater Master”) (together with Cambridge Master, Willowbridge Master, PGM Master and SECOR Master, the “Funds”) have entered into a futures account agreement with MS&Co. and commenced trading through accounts at MS&Co. Principle Master Fund L.P. (“Principle Master”) and 300 North Master Fund L.P. (“300 North Master”) also entered into a futures brokerage agreement with MS&Co. Cambridge Master and PGM Master have also entered into a foreign exchange prime brokerage agreement with MS&Co. References to “Funds” included in this report may include, as relevant, Principle Master and 300 North Master. The Partnership has also entered into a futures brokerage account agreement with MS&Co. The Partnership, directly and through its investment in the Funds, pays MS&Co. trading fees for the clearing and, where applicable, execution of transactions.
	The Partnership has entered into a selling agreement with Morgan Stanley Wealth Management. Pursuant to the selling agreement, Morgan Stanley Wealth Management receives a 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. The selling agent fee received by Morgan Stanley Wealth Management is shared with the properly registered/exempted financial advisers of Morgan Stanley Wealth Management who sell Redeemable Units in the Partnership.
	Effective April 1, 2014, the monthly ongoing selling agent fee was reduced from an annual rate of 3.5% to an annual rate of 2.5% for Class A units.
	Effective October 1, 2014, the monthly ongoing selling agent fee was (i) reduced from an annual rate of 2.5% to an annual rate of 2.0% for Class A Redeemable Units, (ii) reduced from an annual rate of 1.25% to an annual rate of 0.75% for Class D Redeemable Units and (iii) eliminated for Class Z Redeemable Units. As of the same date, the administrative fee was increased from an annual rate of 0.5% to an annual rate of 1.0%. The October 1, 2014 fee changes offset each other and, accordingly, there was no change to the aggregate fees incurred by the Partnership.

Basis_of_Presentation_and_Summ

Basis of Presentation and Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2015
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 statement of the Partnership’s financial condition at March 31, 2015 and December 31, 2014, and the results of its operations and changes in partners’ capital for the three months ended March 31, 2015 and 2014. 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 (the “Form 10-K”) filed with the Securities and Exchange Commission (the “SEC”) for the year ended December 31, 2014. The December 31, 2014 information has been derived from the audited financial statements as of and for the year ended December 31, 2014.
	The preparation of financial statements and accompanying notes in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires the General Partner to make estimates and assumptions that affect the reported amounts of assets and liabilities, income and expenses, and related disclosures of contingent assets and liabilities in the financial statements and accompanying notes. As a result, actual results could differ from these estimates.
	Certain prior period amounts have been reclassified to conform to current period presentation. Amounts reported as expenses allocated from Funds were previously reported separately as part of clearing fees and as part of other expenses. Amounts reported as clearing fees related to direct investments were previously reported as part of clearing fees.
	The General Partner and each Limited Partner share in the profits and losses of the Partnership in proportion to the amount of Partnership interest owned by each, except that no Limited Partner is liable for obligations of the Partnership in excess of its capital contribution and profits, if any, net of distributions or redemptions and losses, if any.
	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.
	Partnership’s Investments in the Funds: The Partnership’s investments in the Funds are stated at fair value, which are based on (1) the Partnership’s net contribution to each Fund and (2) its allocated share of the undistributed profits and losses, including realized gains/losses and the change in net unrealized gains/losses, of each Fund. The valuation of the Funds’ investments, including the classification within the fair value hierarchy of the investments held by the Funds, are described in Note 5.
	Partnership’s/Funds’ Investments: Fair value of exchange-traded futures, options and forward contracts is determined by the various futures 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 foreign currency option contracts is calculated by applying an industry standard model application for options valuation of foreign currency options, using as inputs the spot prices, interest rates, and option implied volatilities quoted as of approximately 3:00 P.M. (E.T.) on the last business day of the reporting period.
	All commodity interests of the Partnership/Funds (including derivative financial instruments and derivative commodity instruments) are held for trading purposes. The commodity interests are recorded on trade date and open contracts are recorded at fair value at the measurement date. Investments in commodity interests denominated in foreign currencies are translated into U.S. dollars at the exchange rates prevailing at the measurement date. Gains or losses are realized when contracts are liquidated. Unrealized gains or losses on open contracts are included as a component of equity in the trading account on the Partnership’s/Funds’ Statements of Financial Condition. Net realized gains or losses and any change in net unrealized gains or losses from the preceding period are reported on the Partnership’s/Funds’ Statements of Income and Expenses and Changes in Partners’ Capital.
	Investment Company Status: The Partnership has adopted Accounting Standards Update (“ASU”) 2013-08, “Financial Services — Investments Companies (Topic 946): Amendments to the Scope, Measurement and Disclosure Requirements.” Based on the General Partner’s assessment, the Partnership has been deemed to be an investment company since inception.
	Income Taxes: Income taxes have not been provided as each partner is individually liable for the taxes, if any, on its share of the Partnership’s income and expenses. GAAP provides guidance for how uncertain tax positions should be recognized, measured, presented and disclosed in the financial statements and requires the evaluation of tax positions taken or expected to be taken in the course of preparing the Partnership’s financial statements to determine whether the tax positions are “more-likely-than-not” to be sustained by the applicable tax authority. Tax positions with respect to tax at the Partnership level not deemed to meet the “more-likely-than-not” threshold would be recorded as a tax benefit or expense in the current year. The General Partner has concluded that no provision for income tax is required in the Partnership’s financial statements.
	The Partnership files U.S. federal and various state and local tax returns. No income tax returns are currently under examination. The 2011 through 2014 tax years remain subject to examination by U.S. federal and most state tax authorities. The General Partner does not believe that there are any uncertain tax positions that require recognition of a tax liability.
	Net Income (loss) per unit: Net income (loss) per unit is calculated in accordance with investment company guidance. See Note 3, “Financial Highlights.”
	Recent Accounting Pronouncement: In May 2015, the Financial Accounting Standards Board issued ASU 2015-07, “Disclosures for Investments in Certain Entities That Calculate Net Asset Value per Share (or Its Equivalent),” which relates to disclosures for investments that calculate net asset value per share (potentially funds of fund structures). The ASU requires investments for which the practical expedient is used to measure fair value at Net Asset Value (“NAV”) be removed from the fair value hierarchy. Instead, an entity is required to include those investments as a reconciling line item so that the total fair value amount of investments in the disclosure is consistent with the amount on the balance sheet. Further, the ASU requires entities to provide the disclosures in Accounting Standards Codification (“ASC”) 820-10-50-6A only for investments for which they elect to use the NAV practical expedient to determine fair value. The standard is effective for public business entities for fiscal years beginning after December 15, 2015, early adoption is permitted. The General Partner is currently evaluating the impact that the new pronouncement would have on the Partnership’s financial statements.
	There have been no material changes with respect to the Partnership’s critical accounting policies as reported in the Partnership’s Annual Report on Form 10-K for the year ended December 31, 2014.

Financial_Highlights

Financial Highlights	3 Months Ended
	Mar. 31, 2015
Text Block [Abstract]
Financial Highlights	3. Financial Highlights:
	Financial highlights for the Limited Partner class as a whole for the three months ended March 31, 2015 and 2014 were as follows:
			Three Months Ended
			March 31,
			2015			2014
	Net realized and unrealized gains (losses)		$	55.84		$	(100.11	)
	Interest Income			0.03			0.1
	Expenses			(30.10	)		(20.47	)
	Increase (decrease) for the period			25.77			(120.48	)
	Net asset value per unit, beginning of period			1,354.30			1,350.40
	Net asset value per unit, end of period		$	1,380.07		$	1,229.92
	Ongoing selling agent fees and clearing fees, which were previously included in net realized and unrealized gains (losses) per unit and excluded from expenses per unit, are now excluded from net realized and unrealized gains (losses) per unit and included in expenses per unit. This information was previously included as a footnote to the financial highlights table.
			Three Months Ended
			March 31,
			2015			2014
	Ratios to average net assets:1
	Net investment income (loss)			(6.2	)%		(6.6	)%
	Operating expense			6.2	%		6.7	%
	Incentive fees			0.7	%		(0.0	)%2
	Total expenses			6.9	%		6.7	%
	Total return:
	Total return before incentive fees			2.6	%		(8.9	)%
	Incentive fees			(0.7	)%		0	%2
	Total return after incentive fees			1.9	%		(8.9	)%
	1	Interest income less total expenses. Does not reflect the effects of incentive fees.
	2	Due to rounding.
	The above ratios and total return may vary for individual investors based on the timing of capital transactions during the period. Additionally, these ratios are calculated for the Limited Partner class using the Limited Partners’ share of income, expenses and average net assets of the Partnership and includes the income and expenses allocated from the Funds, as applicable.

Trading_Activities

Trading Activities	3 Months Ended
	Mar. 31, 2015
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 share of the results of the Fund’s trading activities are shown on the Statements of Income and Expenses and Changes in Partners’ Capital.
	The customer agreement among the Partnership, each of the Funds and MS&Co. gives the Partnership and the Funds the legal right to net unrealized gains and losses on open futures and forward contracts on the Statements of Financial Condition. The Partnership and the Funds net, for financial reporting purposes, the unrealized gains and losses on open futures and on open forward contracts on the Statements of Financial Condition, as the criteria under ASC 210-20, “Balance Sheet,” have been met.
	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 held directly by the Partnership during the three months ended March 31, 2015 and 2014 were 94 and 830, respectively. The monthly average number of option contracts held directly by the Partnership during the three months ended March 31, 2015 and 2014 were 246 and 1,145, 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.
	The following tables summarize the gross and net amounts recognized relating to assets and liabilities of the Partnership’s derivatives and their offsetting subject to master netting arrangements or similar agreements as of March 31, 2015. There were no direct investments as of December 31, 2014.
			Gross			Gross Amounts Offset in the			Amounts			Gross Amounts Not Offset in				Net
			Amounts			Statements of Financial			Presented  in the			the Statement of Financial				Amount
			Recognized			Condition			Statements of			Condition
	31-Mar-15								Financial Condition			Financial		Cash
												Instruments		Collateral
														(Received)/Pledged*
	Assets
	Futures		$	9,047		$	(9,047	)	$	—		$	—	$	—	$	—
	Total Assets		$	9,047		$	(9,047	)	$	—		$	—	$	—	$	—
	Liabilities
	Futures		$	(15,908	)	$	9,047		$	(6,861	)	$	—	$	—	$	(6,861	)
	Options premium received			(306,697	)		—			(306,697	)		—		—		(306,697	)
	Total Liabilities		$	(322,605	)	$	9,047		$	(313,558	)	$	—	$	—	$	(313,558	)
	Net fair value															$	(313,558	)*
	*	In the event of default by the Partnership, MS&Co., the sole counterparty to the Partnership’s derivative contracts, has the right to offset the Partnership’s obligation with the cash held by the Partnership, thereby minimizing the counterparty’s risk of loss. There is no collateral posted by MS&Co. and as such, in the event of default by MS&Co., the Partnership is exposed to the amount shown on the Statements of Financial Condition.
	The following tables indicate the gross fair va lues of derivative instruments of futures, forward and option contracts held directly by the Partnership as separate assets and liabilities as of March 31, 2015. There were no direct investments as of December 31, 2014.
			March 31, 2015
	Assets
	Futures Contracts
	Grains		$	3,562
	Indices			5,485
	Total unrealized appreciation on open futures contracts			9,047
	Liabilities
	Futures Contracts
	Currencies			(8,536	)
	Energy			(123	)
	Grains			(91	)
	Indices			(2,794	)
	Interest Rates Non-U.S.			(2,063	)
	Interest Rates U.S.			(1,969	)
	Softs			(332	)
	Total unrealized depreciation on open futures contracts			(15,908	)
	Net unrealized depreciation on open futures contracts		$	(6,861	)*
	Liabilities
	Option Premium Received
	Energy		$	(306,697	)
	Total option premium received		$	(306,697	)**
	*	This amount is included in “Net unrealized depreciation on open futures contracts” on the Partnership’s Statements of Financial Condition.
	**	This amount is included in “Options premium received, at fair value” on the Partnership’s Statements of Financial Condition.
	The following tables indicate the trading gains and losses, by market sector, on derivative instruments traded directly by the Partnership for the three months ended March 31, 2015 and 2014.
			Three Months Ended
			March 31,
	Sector		2015			2014
	Currencies		$	(107,158	)	$	18,946
	Energy			(677,936	)		(1,563,339	)
	Grains			(26,935	)		51,223
	Indices			97,653			(406,411	)
	Interest Rates Non-U.S.			48,046			(395,168	)
	Interest Rates U.S.			21,947			76,408
	Livestock			15,311			157,830
	Metals			(95,667	)		43,539
	Softs			(16,144	)		(138,696	)
	Total		$	(740,883	)***	$	(2,155,668	)***
	***	This amount is included in “Total trading results” on the Partnership’s Statements of Income and Expenses and Changes in Partners’ Capital.

Fair_Value_Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Fair Value Measurements	5. Fair Value Measurements:
	Partnership’s and the Funds’ Fair Value Measurements. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date under current market conditions. The fair value hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to fair values derived from unobservable inputs (Level 3). The level in the fair value hierarchy within which the fair value measurement in its entirety falls shall be determined based on the lowest level input that is significant to the fair value measurement in its entirety.
	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 non-exchange-traded forward, swap and certain option contracts for which market quotations are not readily available are priced by broker-dealers that derive fair values for those assets and liabilities from observable inputs (Level 2). Investments in funds (other commodity pools) where there are no other rights or obligations inherent within the ownership interest (no liquidity restrictions) held by the Partnership are priced based on the end of the day net asset value (Level 2). The value of the Partnership’s investments in the Funds reflects its proportional interest in the Funds.
	As of and for the periods ended March 31, 2015 and December 31, 2014, the Partnership and the Funds did not hold any derivative instruments that were priced at fair value using unobservable inputs through the application of the General Partner’s assumptions and internal valuation pricing models or investments in the Funds that are currently subject to liquidity restrictions that will not be lifted in the near term (Level 3). Transfers between levels are recognized at the end of the reporting period. During the three months ended March 31, 2015 and the twelve months ended December 31, 2014, there were no transfers of assets or liabilities between Level 1 and Level 2.
		March 31, 2015		Level 1			Level 2		Level 3
	Assets
	Investment in Funds	$	90,018,739	$	—		$	90,018,739	$	—
	Futures		9,047		9,047			—		—
	Total assets	$	90,027,786	$	9,047		$	90,018,739	$	—
	Liabilities
	Futures	$	15,908	$	15,908		$	—	$	—
	Options premium received		306,697		306,697			—		—
	Total liabilities		322,605		322,605			—		—
	Net fair value	$	89,705,181	$	(313,558	)	$	90,018,739	$	—
		December 31, 2014		Level 1			Level 2		Level 3
	Assets
	Investment in Funds	$	93,426,730	$	—		$	93,426,730	$	—
	Net fair value	$	93,426,730	$	—		$	93,426,730	$	—

Investment_in_Funds

Investment in Funds	3 Months Ended
	Mar. 31, 2015
Schedule of Investments [Abstract]
Investment in Funds	6. Investment in Funds:
	On November 1, 2010, the assets allocated to Blackwater for trading were invested in Blackwater Master, a limited partnership organized under the partnership laws of the State of Delaware. The Partnership invested in Blackwater Master with cash equal to $15,674,694. Blackwater Master permits accounts managed by Blackwater using the Blackwater Global Program, a proprietary, systematic trading program, to invest together in one trading vehicle. The General Partner is also the general partner of Blackwater Master. Individual and pooled accounts currently managed by Blackwater, including the Partnership, are permitted to be limited partners of Blackwater Master. The General Partner and Blackwater believe that trading through this structure promotes efficiency and economy in the trading process.
	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 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.
	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. Willowbridge Master permits accounts managed by Willowbridge using the wPraxis Futures Trading Approach, a proprietary, discretionary trading system, to invest together in one trading vehicle. The General Partner is also the general partner of Willowbridge Master. Individual and pooled accounts currently managed by Willowbridge, including the Partnership, are permitted to be limited partners of Willowbridge Master. The General Partner and Willowbridge believe that trading through this structure promotes efficiency and economy in the trading process. The General Partner and Willowbridge agreed that Willowbridge will trade the Partnership’s assets allocated to Willowbridge at a level that is up to 3 times the amount of assets allocated.
	On March 1, 2013, the assets allocated to Principle for trading were invested in Principle Master, a limited partnership organized under the partnership laws of the State of Delaware. The Partnership invested in Principle Master with cash equal to $6,503,661. Effective July 31, 2014, the Partnership fully redeemed its investment in Principle Master for cash equal to $12,165,827.
	On March 1, 2013, the assets allocated to 300 North Capital for trading were invested in 300 North Master, a limited partnership organized under the partnership laws of the State of Delaware. The Partnership invested in 300 North Master with cash equal to $10,000,000. Effective November 1, 2014, the Partnership fully redeemed its investment in 300 North Master for cash equal to $12,374,970.
	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 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.
	On September 1, 2014, the assets allocated to Perella for trading were invested in PGM Master, a limited partnership organized under the partnership laws of the State of Delaware. The Partnership invested in PGM Master with cash equal to $10,500,000. PGM Master permits accounts managed by Perella using a selected variation of the program traded by PWP Global Macro Master Fund L.P., a proprietary, systematic trading system, to invest together in one trading vehicle. The General Partner is also the general partner of PGM Master. Individual and pooled accounts currently managed by Perella are permitted to be limited partners of PGM Master. The General Partner and Perella believe that trading through this structure promotes efficiency and economy in the trading process.
	The General Partner is not aware of any material changes to any of the trading programs discussed above during the fiscal quarter ended March 31, 2015.
	The Funds’ and the Partnership’s trading of futures, forward and option contracts, as applicable, on commodities was done and is done primarily on United States of America commodity exchanges and foreign commodity exchanges. The Funds engage in such trading through commodity brokerage accounts maintained with MS&Co.
	A limited partner of the Funds may withdraw all or part of their capital contribution and undistributed profits, if any, from the Funds as of the end of any day (the “Redemption Date”) after a request for redemption 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.
	Management, administrative and incentive fees are charged at the Partnership level. All trading, exchange, clearing, user, give-up, floor brokerage and National Futures Association fees (“collectively the “clearing fees”) are borne by the Partnership directly or by the Funds and allocated to the Funds’ limited partners, including the Partnership. Other expenses are borne by the Funds and allocated to the Partnership, and also charged directly at the Partnership level. All other fees are charged at the Partnership level.
	At March 31, 2015, the Partnership owned approximately 10.4% of Blackwater Master, 3.3% of Willowbridge Master, 58.6% of SECOR Master, 65.1% of Cambridge Master and 100% of PGM Master. At December 31, 2014, the Partnership owned approximately 16.0% of Blackwater Master, 3.9% of Willowbridge Master, 100% of SECOR Master, 68.5% of Cambridge Master and 100% of PGM Master. It is the Partnership’s intention to continue to invest in the Funds. The performance of the Partnership is directly affected by the performance of the Funds. Expenses to investors as a result of investment in the Funds are approximately the same as they would be if the Partnership traded directly and the redemption rights are not affected.
	Summarized information reflecting the total assets, liabilities and partners’ capital of the Funds is shown in the following tables.
			31-Mar-15
			Total Assets				Total Liabilities				Total Partners’
											Capital
	Blackwater Master		$	22,094,523			$	85,598			$	22,008,925
	SECOR Master			46,171,168				351,252				45,819,916
	Cambridge Master			40,423,057				63,431				40,359,626
	Willowbridge Master			400,052,913				8,594,306				391,458,607
	PGM Master			21,623,936				65,409				21,558,527
			31-Dec-14
			Total Assets				Total Liabilities				Total Partners’
											Capital
	Blackwater Master		$	24,973,305			$	43,208			$	24,930,097
	SECOR Master			29,645,057				40,459				29,604,598
	Cambridge Master			39,046,641				48,456				38,998,185
	Willowbridge Master			332,179,217				16,638,854				315,540,363
	PGM Master			20,831,040				39,214				20,791,826
	Summarized information reflecting the net investment income (loss) from trading, total trading results and net income (loss) of the Funds is shown in the following tables.
			For the three months ended March 31, 2015
			Net Investment				Total Trading				Net Income
			Income (Loss)				Results				(Loss)
	Blackwater Master		$	(10,233	)		$	245,808			$	235,575
	SECOR Master			(120,408	)			2,701,378				2,580,970
	Cambridge Master			(17,606	)			2,512,143				2,494,537
	Willowbridge Master			(277,538	)			11,233,268				10,955,730
	PGM Master			(60,762	)			1,522,748				1,461,986
			For the three months ended March 31, 2014
			Net Investment				Total Trading				Net Income
			Income (loss)				Results				(Loss)
	Blackwater Master		$	(23,138	)		$	(4,034,100	)		$	(4,057,238	)
	SECOR Master			(124,890	)			(1,046,967	)			(1,171,857	)
	Cambridge Master			(44,946	)			156,075				111,129
	Willowbridge Master			(109,462	)			(2,209,110	)			(2,318,572	)
	300 North Master			(50,917	)			(4,637,178	)			(4,688,095	)
	Principle Master			(52,486	)			(2,355,910	)			(2,408,396	)
	Summarized information reflecting the Partnership’s investments in, and the Partnership’s pro rata share of the results of operations of, the Funds is shown in the following tables.
			31-Mar-15										For the three months ended March 31, 2015
			% of					Fair Value					Income				Expenses						Net  Income				Investment	Redemptions
			Partnership’s										(Loss)										(Loss)				Objective	Permitted
	Funds		Net Assets														Clearing			Other
																	Fees
	Blackwater Master				2.03	%			$	2,279,877				$	57,718			$	1,288		$	2,787		$	53,643		Commodity Portfolio	Monthly
	SECOR Master				23.96	%				26,833,657					1,803,503				101,221			19,994			1,682,288		Commodity Portfolio	Monthly
	Cambridge Master				23.46	%				26,280,989					1,627,664				2,152			16,216			1,609,296		Commodity Portfolio	Monthly
	Willowbridge Master				11.67	%				13,065,547					431,049				9,355			1,208			420,486		Commodity Portfolio	Monthly
	PGM Master				19.25	%				21,558,669					1,523,208				33,313			27,909			1,461,986		Commodity Portfolio	Monthly
	Total								$	90,018,739				$	5,443,142			$	147,329		$	68,114		$	5,227,699
			December 31, 2014										For the three months ended March 31, 2014
			% of					Fair Value					Income				Expenses						Net  Income				Investment	Redemptions
			Partnership’s										(Loss)										(Loss)				Objective	Permitted
	Funds		Net Assets														Clearing			Other
													Fees
Blackwater Master				3.47	%			$	3,980,034				$	(1,566,269	)		$	13,105		$	9,219		$	(1,588,593	)	Commodity Portfolio	Monthly
SECOR Master				25.83	%				29,604,763					(1,045,606	)			94,518			31,733			(1,171,857	)	Commodity Portfolio	Monthly
Cambridge Master				23.3	%				26,708,570					114,908				30,867			17,056			66,985		Commodity Portfolio	Monthly
Willowbridge Master				10.76	%				12,341,418					(405,881	)			16,724			3,357			(425,962	)	Commodity Portfolio	Monthly
300 North Master (a)				—	%				—					(4,635,268	)			27,842			24,985			(4,688,095	)	Commodity Portfolio	Monthly
Principle Master (b)				—	%				—					(2,354,404	)			34,963			19,029			(2,408,396	)	Commodity Portfolio	Monthly
PGM Master				18.14	%				20,791,945					—				—			—			—		Commodity Portfolio	Monthly
Total								$	93,426,730				$	(9,892,520	)		$	218,019		$	105,379		$	(10,215,918	)
(a)	From January 1, 2014 through October 31, 2014, the date the Partnership fully redeemed its interest in 300 North Master.
(b)	From January 1, 2014 through July 31, 2014, the date the Partnership fully redeemed its interest in Principle Master.

Financial_Instrument_Risks

Financial Instrument Risks	3 Months Ended
	Mar. 31, 2015
Risks and Uncertainties [Abstract]
Financial Instrument Risks	7. Financial Instrument Risks:
	In the normal course of business, the Partnership and the Funds are parties to financial instruments with off-balance sheet risk, including derivative financial instruments and derivative commodity instruments. These financial instruments may include forwards, futures, options and swaps, whose values are based upon an underlying asset, index, or reference rate, and generally represent future commitments to exchange currencies or cash balances, to purchase or sell other financial instruments at specific terms at specified future dates, or, in the case of derivative commodity instruments, to have a reasonable possibility to be settled in cash, through physical delivery or with another financial instrument. These instruments may be traded on an exchange, a swap execution facility or over-the-counter (“OTC”). Exchange-traded instruments include futures and certain standardized forward, option and swap contracts. Certain swap contracts may also be traded on a swap execution facility or OTC. OTC contracts are negotiated between contracting parties and also include certain forward and option contracts. Specific market movements of commodities or futures contracts underlying an option cannot accurately be predicted. The purchaser of an option may lose the entire premium paid for the option. The writer or seller of an option has unlimited risk. Each of these instruments is subject to various risks similar to those relating to the underlying financial instruments, including market and credit risk. In general, the risks associated with OTC contracts are greater than those associated with exchange-traded instruments because of the greater risk of default by the counterparty to an OTC contract. The General Partner estimates that at any given time approximately 23.7% to 62.7% of the Partnership’s/Funds’ contracts are traded OTC.
	The Partnership and the Funds trade futures contracts. A futures contract is a firm commitment to buy or sell a specified quantity of investments, currency or a standardized amount of a deliverable grade commodity, at a specified price on a specified future date, unless the contract is closed before the delivery date or if the delivery quantity is something where physical delivery cannot occur (such as the S&P 500 Index), whereby such contract is settled in cash. Payments (“variation margin”) may be made or received by the Partnership and the Funds each business day, depending on the daily fluctuations in the value of the underlying contracts, and are recorded as unrealized gains or losses by the Partnership and the Funds. When the contract is closed, the Partnership and the Funds record a realized gain or loss equal to the difference between the value of the contract at the time it was opened and the value at the time it was closed. Transactions in futures contracts require participants to make both initial margin deposits of cash or other assets and variation margin deposits, through the futures broker, directly with the exchange on which the contracts are traded. Net realized gains (losses) and changes in net unrealized gains (losses) on futures contracts are included in the Statements of Income and Expenses and Changes in Partners’ Capital.
	Forward foreign currency contracts are those contracts where the Partnership and the Funds agree to receive or deliver a fixed quantity of foreign currency for an agreed-upon price on an agreed-upon future date. Forward foreign currency contracts are valued daily, and the Partnership’s and Funds’ net equity therein, representing unrealized gain or loss on the contracts as measured by the difference between the forward foreign exchange rates at the dates of entry into the contracts and the forward foreign exchange rates at the reporting date, is included in the Statements of Financial Condition. Net realized gains (losses) and changes in net unrealized gains (losses) on forward foreign currency contracts are recognized in the period in which the contract is closed or the changes occur and are included in the Statements of Income and Expenses and Changes in Partners’ Capital.
	The Partnership and the Funds do not isolate the portion of the results of operations arising from the effect of changes in foreign exchange rates on investments from fluctuations due to changes in market prices of investments held. Such fluctuations are included in net income (loss) in the Statements of Income and Expenses and Changes in Partners’ Capital.
	Metal contracts traded on the London Metals Exchange (“LME”) represent a firm commitment to buy or sell a specified quantity of aluminum, copper, lead, nickel, tin or zinc. LME contracts traded by the Partnership and the Funds are cash-settled based on prompt dates published by the LME. Payments (“variation margin”) may be made or received by the Partnership and the Funds each business day, depending on the daily fluctuations in the value of the underlying contracts, and are recorded as unrealized gains or losses by the Partnership and the Funds. A contract is considered offset when all long positions have been matched with a like number of short positions settling on the same prompt date. When the contract is closed at the prompt date, the Partnership and the Funds record a realized gain or loss equal to the difference between the value of the contract at the time it was opened and the value at the time it was closed. Transactions in LME contracts require participants to make both initial margin deposits of cash or other assets and variation margin deposits, through the broker, directly with the LME. Net realized gains (losses) and changes in net unrealized gains (losses) on metal contracts are included in the Statements of Income and Expenses and Changes in Partners’ Capital.
	The Partnership/Funds may purchase and write (sell) both exchange-listed and OTC options on commodities or financial instruments. An option is a contract allowing, but not requiring, its holder to buy (call) or sell (put) a specific or standard commodity or financial instrument at a specified price during a specified time period. The option premium is the total price paid or received for the option contract. When the Partnership/Funds write an option, the premium received is recorded as a liability in the Statements of Financial Condition and marked-to-market daily. When the Partnership/Funds purchase an option, the premium paid is recorded as an asset in the Statements of Financial Condition and marked-to-market daily. Net realized gains (losses) and changes in net unrealized gains (losses) on option contracts are included in the Statements of Income and Expenses and Changes in Partners’ Capital.
	The risk to the Limited Partners that have purchased Redeemable Units is limited to the amount of their share of the Partnership’s net assets and undistributed profits. This limited liability is a result of the organization of the Partnership as a limited partnership under New York law.
	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/Funds are exposed to a market risk equal to the value of futures and forward contracts purchased and unlimited liability on such contracts sold short.
	Credit risk is the possibility that a loss may occur due to the failure of a counterparty to perform according to the terms of a contract. The Partnership’s/Funds’ risk of loss in the event of a counterparty default is typically limited to the amounts recognized in the 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 had credit risk and concentration risk, as MS&Co. or its affiliate was 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., the Partnership’s/Funds’ counterparty is an exchange or clearing organization.
	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.
	The General Partner monitors and attempts to control the Partnership’s/Funds’ risk exposure on a daily basis through financial, credit and risk management monitoring systems and, accordingly, believes that it has effective procedures for evaluating and limiting the credit and market risks to which the Partnership/Funds may be subject. These monitoring systems generally allow the General Partner to statistically analyze actual trading results with risk-adjusted performance indicators and correlation statistics. In addition, online monitoring systems provide account analysis of futures, forward and option contracts by sector, margin requirements, gain and loss transactions and collateral positions.
	The majority of these financial instruments mature within one year of the inception date. However, due to the nature of the Partnership’s/Funds’ business, these instruments may not be held to maturity.

Subsequent_Events

Subsequent Events	3 Months Ended
	Mar. 31, 2015
Subsequent Events [Abstract]
Subsequent Events	8. Subsequent Events
	The General Partner evaluates events that occur after the balance sheet date but before financial statements are issued. The General Partner has assessed the subsequent events through the date of issuance and has determined that there were no subsequent events requiring adjustment of or disclosure in the financial statements.

Basis_of_Presentation_and_Summ1

Basis of Presentation and Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
Partnership's Investments in the Funds	Partnership’s Investments in the Funds: The Partnership’s investments in the Funds are stated at fair value, which are based on (1) the Partnership’s net contribution to each Fund and (2) its allocated share of the undistributed profits and losses, including realized gains/losses and the change in net unrealized gains/losses, of each Fund. The valuation of the Funds’ investments, including the classification within the fair value hierarchy of the investments held by the Funds, are described in Note 5.
	Partnership’s/Funds’ Investments: Fair value of exchange-traded futures, options and forward contracts is determined by the various futures 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 foreign currency option contracts is calculated by applying an industry standard model application for options valuation of foreign currency options, using as inputs the spot prices, interest rates, and option implied volatilities quoted as of approximately 3:00 P.M. (E.T.) on the last business day of the reporting period.
	All commodity interests of the Partnership/Funds (including derivative financial instruments and derivative commodity instruments) are held for trading purposes. The commodity interests are recorded on trade date and open contracts are recorded at fair value at the measurement date. Investments in commodity interests denominated in foreign currencies are translated into U.S. dollars at the exchange rates prevailing at the measurement date. Gains or losses are realized when contracts are liquidated. Unrealized gains or losses on open contracts are included as a component of equity in the trading account on the Partnership’s/Funds’ Statements of Financial Condition. Net realized gains or losses and any change in net unrealized gains or losses from the preceding period are reported on the Partnership’s/Funds’ Statements of Income and Expenses and Changes in Partners’ Capital.
Investment Company Status	Investment Company Status: The Partnership has adopted Accounting Standards Update (“ASU”) 2013-08, “Financial Services — Investments Companies (Topic 946): Amendments to the Scope, Measurement and Disclosure Requirements.” Based on the General Partner’s assessment, the Partnership has been deemed to be an investment company since inception.
Income Taxes	Income Taxes: Income taxes have not been provided as each partner is individually liable for the taxes, if any, on its share of the Partnership’s income and expenses. GAAP provides guidance for how uncertain tax positions should be recognized, measured, presented and disclosed in the financial statements and requires the evaluation of tax positions taken or expected to be taken in the course of preparing the Partnership’s financial statements to determine whether the tax positions are “more-likely-than-not” to be sustained by the applicable tax authority. Tax positions with respect to tax at the Partnership level not deemed to meet the “more-likely-than-not” threshold would be recorded as a tax benefit or expense in the current year. The General Partner has concluded that no provision for income tax is required in the Partnership’s financial statements.
	The Partnership files U.S. federal and various state and local tax returns. No income tax returns are currently under examination. The 2011 through 2014 tax years remain subject to examination by U.S. federal and most state tax authorities. The General Partner does not believe that there are any uncertain tax positions that require recognition of a tax liability.
Net Income (Loss) per unit	Net Income (loss) per unit: Net income (loss) per unit is calculated in accordance with investment company guidance. See Note 3, “Financial Highlights.”
Recent Accounting Pronouncement	Recent Accounting Pronouncement: In May 2015, the Financial Accounting Standards Board issued ASU 2015-07, “Disclosures for Investments in Certain Entities That Calculate Net Asset Value per Share (or Its Equivalent),” which relates to disclosures for investments that calculate net asset value per share (potentially funds of fund structures). The ASU requires investments for which the practical expedient is used to measure fair value at Net Asset Value (“NAV”) be removed from the fair value hierarchy. Instead, an entity is required to include those investments as a reconciling line item so that the total fair value amount of investments in the disclosure is consistent with the amount on the balance sheet. Further, the ASU requires entities to provide the disclosures in Accounting Standards Codification (“ASC”) 820-10-50-6A only for investments for which they elect to use the NAV practical expedient to determine fair value. The standard is effective for public business entities for fiscal years beginning after December 15, 2015, early adoption is permitted. The General Partner is currently evaluating the impact that the new pronouncement would have on the Partnership’s financial statements.
	There have been no material changes with respect to the Partnership’s critical accounting policies as reported in the Partnership’s Annual Report on Form 10-K for the year ended December 31, 2014.

Financial_Highlights_Tables

Financial Highlights (Tables)	3 Months Ended
	Mar. 31, 2015
Text Block [Abstract]
Schedule of Financial Highlights for Limited Partner Class	Financial highlights for the Limited Partner class as a whole for the three months ended March 31, 2015 and 2014 were as follows:
			Three Months Ended
			March 31,
			2015			2014
	Net realized and unrealized gains (losses)		$	55.84		$	(100.11	)
	Interest Income			0.03			0.1
	Expenses			(30.10	)		(20.47	)
	Increase (decrease) for the period			25.77			(120.48	)
	Net asset value per unit, beginning of period			1,354.30			1,350.40
	Net asset value per unit, end of period		$	1,380.07		$	1,229.92
Ratios to Average Net Assets
			Three Months Ended
			March 31,
			2015			2014
	Ratios to average net assets:1
	Net investment income (loss)			(6.2	)%		(6.6	)%
	Operating expense			6.2	%		6.7	%
	Incentive fees			0.7	%		(0.0	)%2
	Total expenses			6.9	%		6.7	%
	Total return:
	Total return before incentive fees			2.6	%		(8.9	)%
	Incentive fees			(0.7	)%		0	%2
	Total return after incentive fees			1.9	%		(8.9	)%
	1	Interest income less total expenses. Does not reflect the effects of incentive fees.
	2	Due to rounding.

Trading_Activities_Tables

Trading Activities (Tables)	3 Months Ended
	Mar. 31, 2015
Brokers and Dealers [Abstract]
Summary of Gross and Net Amounts Recognized Relating to Assets and Liabilities of Partnership's Derivatives and Their Offsetting Subject to Master Netting Arrangements or Similar Agreements	The following tables summarize the gross and net amounts recognized relating to assets and liabilities of the Partnership’s derivatives and their offsetting subject to master netting arrangements or similar agreements as of March 31, 2015. There were no direct investments as of December 31, 2014.
			Gross			Gross Amounts Offset in the			Amounts			Gross Amounts Not Offset in				Net
			Amounts			Statements of Financial			Presented  in the			the Statement of Financial				Amount
			Recognized			Condition			Statements of			Condition
	31-Mar-15								Financial Condition			Financial		Cash
												Instruments		Collateral
														(Received)/Pledged*
	Assets
	Futures		$	9,047		$	(9,047	)	$	—		$	—	$	—	$	—
	Total Assets		$	9,047		$	(9,047	)	$	—		$	—	$	—	$	—
	Liabilities
	Futures		$	(15,908	)	$	9,047		$	(6,861	)	$	—	$	—	$	(6,861	)
	Options premium received			(306,697	)		—			(306,697	)		—		—		(306,697	)
	Total Liabilities		$	(322,605	)	$	9,047		$	(313,558	)	$	—	$	—	$	(313,558	)
	Net fair value															$	(313,558	)*
	*	In the event of default by the Partnership, MS&Co., the sole counterparty to the Partnership’s derivative contracts, has the right to offset the Partnership’s obligation with the cash held by the Partnership, thereby minimizing the counterparty’s risk of loss. There is no collateral posted by MS&Co. and as such, in the event of default by MS&Co., the Partnership is exposed to the amount shown on the Statements of Financial Condition.
Gross Fair Values of Derivative Instruments of Futures and Forward Contracts Traded	The following tables indicate the gross fair va lues of derivative instruments of futures, forward and option contracts held directly by the Partnership as separate assets and liabilities as of March 31, 2015. There were no direct investments as of December 31, 2014.
			March 31, 2015
	Assets
	Futures Contracts
	Grains		$	3,562
	Indices			5,485
	Total unrealized appreciation on open futures contracts			9,047
	Liabilities
	Futures Contracts
	Currencies			(8,536	)
	Energy			(123	)
	Grains			(91	)
	Indices			(2,794	)
	Interest Rates Non-U.S.			(2,063	)
	Interest Rates U.S.			(1,969	)
	Softs			(332	)
	Total unrealized depreciation on open futures contracts			(15,908	)
	Net unrealized depreciation on open futures contracts		$	(6,861	)*
	Liabilities
	Option Premium Received
	Energy		$	(306,697	)
	Total option premium received		$	(306,697	)**
	*	This amount is included in “Net unrealized depreciation on open futures contracts” on the Partnership’s Statements of Financial Condition.
	**	This amount is included in “Options premium received, at fair value” on the Partnership’s Statements of Financial Condition.
Trading Gains and Losses by Market Sector on Derivative Instruments Traded	The following tables indicate the trading gains and losses, by market sector, on derivative instruments traded directly by the Partnership for the three months ended March 31, 2015 and 2014.
			Three Months Ended
			March 31,
	Sector		2015			2014
	Currencies		$	(107,158	)	$	18,946
	Energy			(677,936	)		(1,563,339	)
	Grains			(26,935	)		51,223
	Indices			97,653			(406,411	)
	Interest Rates Non-U.S.			48,046			(395,168	)
	Interest Rates U.S.			21,947			76,408
	Livestock			15,311			157,830
	Metals			(95,667	)		43,539
	Softs			(16,144	)		(138,696	)
	Total		$	(740,883	)***	$	(2,155,668	)***
	***	This amount is included in “Total trading results” on the Partnership’s Statements of Income and Expenses and Changes in Partners’ Capital.

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Derivative Instruments Priced at Fair Value Using Unobservable Inputs	During the three months ended March 31, 2015 and the twelve months ended December 31, 2014, there were no transfers of assets or liabilities between Level 1 and Level 2.
		March 31, 2015		Level 1			Level 2		Level 3
	Assets
	Investment in Funds	$	90,018,739	$	—		$	90,018,739	$	—
	Futures		9,047		9,047			—		—
	Total assets	$	90,027,786	$	9,047		$	90,018,739	$	—
	Liabilities
	Futures	$	15,908	$	15,908		$	—	$	—
	Options premium received		306,697		306,697			—		—
	Total liabilities		322,605		322,605			—		—
	Net fair value	$	89,705,181	$	(313,558	)	$	90,018,739	$	—
		December 31, 2014		Level 1			Level 2		Level 3
	Assets
	Investment in Funds	$	93,426,730	$	—		$	93,426,730	$	—
	Net fair value	$	93,426,730	$	—		$	93,426,730	$	—

Investment_in_Funds_Tables

Investment in Funds (Tables)	3 Months Ended
	Mar. 31, 2015
Schedule of Investments [Abstract]
Summary of Total Assets, Liabilities and Partners' Capital	Summarized information reflecting the total assets, liabilities and partners’ capital of the Funds is shown in the following tables.
			31-Mar-15
			Total Assets				Total Liabilities				Total Partners’
											Capital
	Blackwater Master		$	22,094,523			$	85,598			$	22,008,925
	SECOR Master			46,171,168				351,252				45,819,916
	Cambridge Master			40,423,057				63,431				40,359,626
	Willowbridge Master			400,052,913				8,594,306				391,458,607
	PGM Master			21,623,936				65,409				21,558,527
			31-Dec-14
			Total Assets				Total Liabilities				Total Partners’
											Capital
	Blackwater Master		$	24,973,305			$	43,208			$	24,930,097
	SECOR Master			29,645,057				40,459				29,604,598
	Cambridge Master			39,046,641				48,456				38,998,185
	Willowbridge Master			332,179,217				16,638,854				315,540,363
	PGM Master			20,831,040				39,214				20,791,826
Summary of Net Investment Income (Loss), Total Trading Results and Net Income (Loss)	Summarized information reflecting the net investment income (loss) from trading, total trading results and net income (loss) of the Funds is shown in the following tables.
			For the three months ended March 31, 2015
			Net Investment				Total Trading				Net Income
			Income (Loss)				Results				(Loss)
	Blackwater Master		$	(10,233	)		$	245,808			$	235,575
	SECOR Master			(120,408	)			2,701,378				2,580,970
	Cambridge Master			(17,606	)			2,512,143				2,494,537
	Willowbridge Master			(277,538	)			11,233,268				10,955,730
	PGM Master			(60,762	)			1,522,748				1,461,986
			For the three months ended March 31, 2014
			Net Investment				Total Trading				Net Income
			Income (loss)				Results				(Loss)
	Blackwater Master		$	(23,138	)		$	(4,034,100	)		$	(4,057,238	)
	SECOR Master			(124,890	)			(1,046,967	)			(1,171,857	)
	Cambridge Master			(44,946	)			156,075				111,129
	Willowbridge Master			(109,462	)			(2,209,110	)			(2,318,572	)
	300 North Master			(50,917	)			(4,637,178	)			(4,688,095	)
	Principle Master			(52,486	)			(2,355,910	)			(2,408,396	)
Summary of 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 share of the results of operations of, the Funds is shown in the following tables.
			31-Mar-15										For the three months ended March 31, 2015
			% of					Fair Value					Income				Expenses						Net  Income				Investment	Redemptions
			Partnership’s										(Loss)										(Loss)				Objective	Permitted
	Funds		Net Assets														Clearing			Other
																	Fees
	Blackwater Master				2.03	%			$	2,279,877				$	57,718			$	1,288		$	2,787		$	53,643		Commodity Portfolio	Monthly
	SECOR Master				23.96	%				26,833,657					1,803,503				101,221			19,994			1,682,288		Commodity Portfolio	Monthly
	Cambridge Master				23.46	%				26,280,989					1,627,664				2,152			16,216			1,609,296		Commodity Portfolio	Monthly
	Willowbridge Master				11.67	%				13,065,547					431,049				9,355			1,208			420,486		Commodity Portfolio	Monthly
	PGM Master				19.25	%				21,558,669					1,523,208				33,313			27,909			1,461,986		Commodity Portfolio	Monthly
	Total								$	90,018,739				$	5,443,142			$	147,329		$	68,114		$	5,227,699
			December 31, 2014										For the three months ended March 31, 2014
			% of					Fair Value					Income				Expenses						Net  Income				Investment	Redemptions
			Partnership’s										(Loss)										(Loss)				Objective	Permitted
	Funds		Net Assets														Clearing			Other
																	Fees
	Blackwater Master				3.47	%			$	3,980,034				$	(1,566,269	)		$	13,105		$	9,219		$	(1,588,593	)	Commodity Portfolio	Monthly
	SECOR Master				25.83	%				29,604,763					(1,045,606	)			94,518			31,733			(1,171,857	)	Commodity Portfolio	Monthly
	Cambridge Master				23.3	%				26,708,570					114,908				30,867			17,056			66,985		Commodity Portfolio	Monthly
	Willowbridge Master				10.76	%				12,341,418					(405,881	)			16,724			3,357			(425,962	)	Commodity Portfolio	Monthly
	300 North Master (a)				—	%				—					(4,635,268	)			27,842			24,985			(4,688,095	)	Commodity Portfolio	Monthly
	Principle Master (b)				—	%				—					(2,354,404	)			34,963			19,029			(2,408,396	)	Commodity Portfolio	Monthly
	PGM Master				18.14	%				20,791,945					—				—			—			—		Commodity Portfolio	Monthly
	Total								$	93,426,730				$	(9,892,520	)		$	218,019		$	105,379		$	(10,215,918	)
	(a)	From January 1, 2014 through October 31, 2014, the date the Partnership fully redeemed its interest in 300 North Master.
	(b)	From January 1, 2014 through July 31, 2014, the date the Partnership fully redeemed its interest in Principle Master.

Organization_Additional_Inform

Organization - Additional Information (Detail) (USD $)	0 Months Ended		3 Months Ended	0 Months Ended
	Oct. 01, 2014	Sep. 30, 2014	Mar. 31, 2015	Apr. 01, 2014
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
Yearly administrative fees percentage	1.00%	0.50%
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 Wealth Management. Pursuant to the selling agreement, Morgan Stanley Wealth Management receives a 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.
Maximum [Member]
Partnership Organization And Basis Of Presentation [Line Items]
Percentage of partnership assets allocated			10.00%
Class A Redeemable Units [Member]
Partnership Organization And Basis Of Presentation [Line Items]
Percentage of brokerage fees paid	2.00%	2.50%		2.50%
Class A Redeemable Units [Member] | Selling Agreement [Member]
Partnership Organization And Basis Of Presentation [Line Items]
Percentage of brokerage fees paid			2.00%
Class D Redeemable Units [Member]
Partnership Organization And Basis Of Presentation [Line Items]
Percentage of brokerage fees paid	0.75%	1.25%
Class D Redeemable Units [Member] | Selling Agreement [Member]
Partnership Organization And Basis Of Presentation [Line Items]
Percentage of brokerage fees paid			0.75%

Basis_of_Presentation_and_Summ2

Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
Income tax examination, description	No income tax returns are currently under examination. The 2011 through 2014 tax years remain subject to examination by U.S. federal and most state tax authorities.

Financial_Highlights_Schedule_

Financial Highlights - Schedule of Financial Highlights for Limited Partner Class (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Fair Value Disclosures [Abstract]
Net realized and unrealized gains (losses)	$55.84	($100.11)
Interest Income	$0.03	$0.10
Expenses	($30.10)	($20.47)
Increase (decrease) for the period	$25.77	($120.48)
Net asset value per unit, beginning of period	$1,354.30	$1,350.40
Net asset value per unit, end of period	$1,380.07	$1,229.92

Financial_Highlights_Ratios_to

Financial Highlights - Ratios to Average Net Assets (Detail)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Ratios to average net assets:
Net investment income (loss)	-6.20%	-6.60%
Operating expense	6.20%	6.70%
Incentive fees	0.70%	0.00%
Total expenses	6.90%	6.70%
Total return before incentive fees	2.60%	-8.90%
Incentive fees	-0.70%	0.00%
Total return after incentive fees	1.90%	-8.90%

Trading_Activities_Additional_

Trading Activities - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
	Contracts	Contracts
Trading Activity, Gains and Losses, Net [Line Items]
Net fair value	-313,558		$0
Futures Contracts [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Average number of derivative contracts held	94	830
Options Contracts [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Average number of derivative contracts traded	246	1,145

Trading_Activities_Summary_of_

Trading Activities - Summary of Gross and Net Amounts Recognized Relating to Assets and Liabilities of Partnership's Derivatives and Their Offsetting Subject to Master Netting Arrangements or Similar Agreements (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Derivative [Line Items]
Gross Amounts Recognized, Assets	$9,047
Gross Amounts Offset in the Statements of Financial Condition, Assets	-9,047
Amounts Presented in the Statements of Financial Condition, Assets	0
Net Amount, Assets	0
Gross Amounts Recognized, Liabilities	-322,605
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	9,047
Amounts Presented in the Statements of Financial Condition, Liabilities	-313,558
Net Amount, Liabilities	-313,558
Net fair value	-313,558	0
Futures Contracts [Member]
Derivative [Line Items]
Gross Amounts Recognized, Assets	9,047
Gross Amounts Offset in the Statements of Financial Condition, Assets	-9,047
Amounts Presented in the Statements of Financial Condition, Assets	0
Net Amount, Assets	0
Gross Amounts Recognized, Liabilities	-15,908
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	9,047
Amounts Presented in the Statements of Financial Condition, Liabilities	-6,861
Net Amount, Liabilities	-6,861
Options Premium Received [Member]
Derivative [Line Items]
Gross Amounts Recognized, Liabilities	-306,697
Amounts Presented in the Statements of Financial Condition, Liabilities	-306,697
Net Amount, Liabilities	-306,697
Financial Instruments [Member]
Derivative [Line Items]
Financial Instruments, Assets	0
Financial Instruments, Liabilities	0
Financial Instruments [Member] | Futures Contracts [Member]
Derivative [Line Items]
Financial Instruments, Assets	0
Financial Instruments, Liabilities	0
Financial Instruments [Member] | Options Premium Received [Member]
Derivative [Line Items]
Financial Instruments, Liabilities	0
Cash Collateral (Received)/Pledged [Member]
Derivative [Line Items]
Cash Collateral (Received)/Pledged, Assets	0
Cash Collateral (Received)/Pledged, Liabilities	0
Cash Collateral (Received)/Pledged [Member] | Futures Contracts [Member]
Derivative [Line Items]
Cash Collateral (Received)/Pledged, Assets	0
Cash Collateral (Received)/Pledged, Liabilities	0
Cash Collateral (Received)/Pledged [Member] | Options Premium Received [Member]
Derivative [Line Items]
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 $)	Mar. 31, 2015
Trading Activity, Gains and Losses, Net [Line Items]
Net unrealized appreciation (depreciation) on open contracts	($6,861)
Total option premium received	-306,697
Energy [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total option premium received	-306,697
Futures Contracts [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Net unrealized appreciation (depreciation) on open contracts	-6,861
Derivative Assets [Member] | Futures Contracts [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total unrealized appreciation on open contracts	9,047
Derivative Assets [Member] | Futures Contracts [Member] | Grains [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total unrealized appreciation on open contracts	3,562
Derivative Assets [Member] | Futures Contracts [Member] | Indices [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total unrealized appreciation on open contracts	5,485
Derivative Liabilities [Member] | Futures Contracts [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total unrealized depreciation on open contracts	-15,908
Derivative Liabilities [Member] | Futures Contracts [Member] | Grains [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total unrealized depreciation on open contracts	-91
Derivative Liabilities [Member] | Futures Contracts [Member] | Indices [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total unrealized depreciation on open contracts	-2,794
Derivative Liabilities [Member] | Futures Contracts [Member] | Currencies [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total unrealized depreciation on open contracts	-8,536
Derivative Liabilities [Member] | Futures Contracts [Member] | Energy [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total unrealized depreciation on open contracts	-123
Derivative Liabilities [Member] | Futures Contracts [Member] | Interest Rates Non-U.S. [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total unrealized depreciation on open contracts	-2,063
Derivative Liabilities [Member] | Futures Contracts [Member] | Interest Rates U.S. [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total unrealized depreciation on open contracts	-1,969
Derivative Liabilities [Member] | Futures Contracts [Member] | Softs [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total unrealized depreciation on open contracts	($332)

Trading_Activities_Trading_Gai

Trading Activities - Trading Gains and Losses by Market Sector on Derivative Instruments Traded (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Trading Activity, Gains and Losses, Net [Line Items]
Total trading results	$4,700,335	($12,058,205)
Derivative Instruments [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total trading results	-740,883	-2,155,668
Derivative Instruments [Member] | Currencies [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total trading results	-107,158	18,946
Derivative Instruments [Member] | Energy [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total trading results	-677,936	-1,563,339
Derivative Instruments [Member] | Grains [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total trading results	-26,935	51,223
Derivative Instruments [Member] | Indices [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total trading results	97,653	-406,411
Derivative Instruments [Member] | Interest Rates Non-U.S. [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total trading results	48,046	-395,168
Derivative Instruments [Member] | Interest Rates U.S. [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total trading results	21,947	76,408
Derivative Instruments [Member] | Livestock [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total trading results	15,311	157,830
Derivative Instruments [Member] | Metals [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total trading results	-95,667	43,539
Derivative Instruments [Member] | Softs [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Total trading results	($16,144)	($138,696)

Fair_Value_Measurements_Additi

Fair Value Measurements - Additional Information (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Fair Value Disclosures [Abstract]
Transfers of assets between Level 1 and Level 2	$0	$0
Transfers of liabilities between Level 1 and Level 2	$0	$0

Fair_Value_Measurements_Deriva

Fair Value Measurements - Derivative Instruments Priced at Fair Value Using Unobservable Inputs (Detail) (USD $)	Mar. 31, 2015		Dec. 31, 2014		Mar. 31, 2014
Assets
Derivative assets	$0
Total assets	90,027,786
Investment in Funds	90,018,739	[1]	93,426,730	[1]	93,426,730
Net fair value	89,705,181		93,426,730
Liabilities
Derivatives liabilities	313,558
Options premium received	306,697
Total liabilities	322,605
Futures Contracts [Member]
Assets
Derivative assets	9,047
Liabilities
Derivatives liabilities	15,908
Level 1 [Member]
Assets
Total assets	9,047
Net fair value	-313,558
Liabilities
Options premium received	306,697
Total liabilities	322,605
Level 1 [Member] | Futures Contracts [Member]
Assets
Derivative assets	9,047
Liabilities
Derivatives liabilities	15,908
Level 2 [Member]
Assets
Total assets	90,018,739
Investment in Funds	90,018,739		93,426,730
Net fair value	$90,018,739		$93,426,730
[1]	Defined in Note 1.

Investment_in_Funds_Additional

Investment in Funds - Additional Information (Detail) (USD $)	0 Months Ended	3 Months Ended	0 Months Ended
	Aug. 01, 2013	Mar. 31, 2015	Nov. 01, 2010	Sep. 01, 2012	Jan. 01, 2013	Jul. 31, 2014	Mar. 01, 2013	Nov. 01, 2014	Sep. 01, 2014	Dec. 31, 2014
SECOR Master [Member]
Investment Holdings [Line Items]
Cash paid	$10,000,000
Maximum amount of partnership assets allocated to trading advisor		1.5 times
Percent of partnership		58.60%								100.00%
Blackwater Master [Member]
Investment Holdings [Line Items]
Cash paid			15,674,694
Percent of partnership		10.40%								16.00%
Cambridge Master [Member]
Investment Holdings [Line Items]
Partnership purchased				3,000,000
Percent of partnership		65.10%								68.50%
Cambridge Master [Member] | Maximum [Member]
Investment Holdings [Line Items]
Maximum amount of partnership assets allocated to trading advisor		2 times
Cambridge Master [Member] | Minimum [Member]
Investment Holdings [Line Items]
Maximum amount of partnership assets allocated to trading advisor		1.5 times
Willowbridge Master [Member]
Investment Holdings [Line Items]
Cash paid					29,484,306
Maximum amount of partnership assets allocated to trading advisor		3 times
Partnership units purchased					14,103.32
Percent of partnership		3.30%								3.90%
Principle Master Fund L.P. [Member]
Investment Holdings [Line Items]
Cash paid							6,503,661
Investments redeemed						12,165,827
300 North Capital Master Fund L.P. [Member]
Investment Holdings [Line Items]
Cash paid							10,000,000
Investments redeemed								12,374,970
PGM Master Fund L.P. [Member]
Investment Holdings [Line Items]
Cash paid									$10,500,000
Percent of partnership		100.00%								100.00%

Investment_in_Funds_Summary_of

Investment in Funds - Summary of Total Assets, Liabilities and Partners' Capital (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Blackwater Master [Member]
Investment Holdings [Line Items]
Total Assets	$22,094,523	$24,973,305
Total Liabilities	85,598	43,208
Total Partners' Capital	22,008,925	24,930,097
SECOR Master [Member]
Investment Holdings [Line Items]
Total Assets	46,171,168	29,645,057
Total Liabilities	351,252	40,459
Total Partners' Capital	45,819,916	29,604,598
Cambridge Master [Member]
Investment Holdings [Line Items]
Total Assets	40,423,057	39,046,641
Total Liabilities	63,431	48,456
Total Partners' Capital	40,359,626	38,998,185
Willowbridge Master [Member]
Investment Holdings [Line Items]
Total Assets	400,052,913	332,179,217
Total Liabilities	8,594,306	16,638,854
Total Partners' Capital	391,458,607	315,540,363
PGM Master Fund L.P. [Member]
Investment Holdings [Line Items]
Total Assets	21,623,936	20,831,040
Total Liabilities	65,409	39,214
Total Partners' Capital	$21,558,527	$20,791,826

Investment_in_Funds_Summary_of1

Investment in Funds - Summary of Net Investment Income (Loss), Total Trading Results and Net Income (Loss) (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Investment In Funds Disclosure [Line Items]
Net Investment Income (Loss)	$5,227,699	($10,215,918)
Total trading results	4,700,335	-12,058,205
Net income (loss)	2,171,222	-14,507,196
Blackwater Master [Member]
Investment In Funds Disclosure [Line Items]
Net Investment Income (Loss)	53,643	-1,588,593
SECOR Master [Member]
Investment In Funds Disclosure [Line Items]
Net Investment Income (Loss)	1,682,288	-1,171,857
Cambridge Master [Member]
Investment In Funds Disclosure [Line Items]
Net Investment Income (Loss)	1,609,296	66,985
Willowbridge Master [Member]
Investment In Funds Disclosure [Line Items]
Net Investment Income (Loss)	420,486	-425,962
300 North Master [Member]
Investment In Funds Disclosure [Line Items]
Net Investment Income (Loss)		-4,688,095
Principle Master Fund L.P. [Member]
Investment In Funds Disclosure [Line Items]
Net Investment Income (Loss)		-2,408,396
PGM Master Fund L.P. [Member]
Investment In Funds Disclosure [Line Items]
Net Investment Income (Loss)	1,461,986
Investment In Fund [Member] | Blackwater Master [Member]
Investment In Funds Disclosure [Line Items]
Net Investment Income (Loss)	-10,233	-23,138
Total trading results	245,808	-4,034,100
Net income (loss)	235,575	-4,057,238
Investment In Fund [Member] | SECOR Master [Member]
Investment In Funds Disclosure [Line Items]
Net Investment Income (Loss)	-120,408	-124,890
Total trading results	2,701,378	-1,046,967
Net income (loss)	2,580,970	-1,171,857
Investment In Fund [Member] | Cambridge Master [Member]
Investment In Funds Disclosure [Line Items]
Net Investment Income (Loss)	-17,606	-44,946
Total trading results	2,512,143	156,075
Net income (loss)	2,494,537	111,129
Investment In Fund [Member] | Willowbridge Master [Member]
Investment In Funds Disclosure [Line Items]
Net Investment Income (Loss)	-277,538	-109,462
Total trading results	11,233,268	-2,209,110
Net income (loss)	10,955,730	-2,318,572
Investment In Fund [Member] | 300 North Master [Member]
Investment In Funds Disclosure [Line Items]
Net Investment Income (Loss)		-50,917
Total trading results		-4,637,178
Net income (loss)		-4,688,095
Investment In Fund [Member] | Principle Master Fund L.P. [Member]
Investment In Funds Disclosure [Line Items]
Net Investment Income (Loss)		-52,486
Total trading results		-2,355,910
Net income (loss)		-2,408,396
Investment In Fund [Member] | PGM Master Fund L.P. [Member]
Investment In Funds Disclosure [Line Items]
Net Investment Income (Loss)	-60,762
Total trading results	1,522,748
Net income (loss)	$1,461,986

Investment_in_Funds_Summary_of2

Investment in Funds - Summary of Partnership's Investments in, and Partnership's Pro Rata Share of Results of Operations of, Funds (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014	Dec. 31, 2014
Investment Holdings [Line Items]
Percentage of Partnership's Net Assets	80.09%			81.50%
Investment in Funds, at fair value	$90,018,739	[1]	$93,426,730	$93,426,730	[1]
Income (Loss)	5,443,142		-9,892,520
Clearing Fees Expenses	147,329		218,019
Other	68,114		105,379
Net Investment Income (Loss)	5,227,699		-10,215,918
Blackwater Master [Member]
Investment Holdings [Line Items]
Percentage of Partnership's Net Assets	2.03%		3.47%
Investment in Funds, at fair value	2,279,877		3,980,034
Income (Loss)	57,718		-1,566,269
Clearing Fees Expenses	1,288		13,105
Other	2,787		9,219
Net Investment Income (Loss)	53,643		-1,588,593
Investment Objective	Commodity Portfolio		Commodity Portfolio
Redemption Permitted	Monthly		Monthly
SECOR Master [Member]
Investment Holdings [Line Items]
Percentage of Partnership's Net Assets	23.96%		25.83%
Investment in Funds, at fair value	26,833,657		29,604,763
Income (Loss)	1,803,503		-1,045,606
Clearing Fees Expenses	101,221		94,518
Other	19,994		31,733
Net Investment Income (Loss)	1,682,288		-1,171,857
Investment Objective	Commodity Portfolio		Commodity Portfolio
Redemption Permitted	Monthly		Monthly
Cambridge Master [Member]
Investment Holdings [Line Items]
Percentage of Partnership's Net Assets	23.46%		23.30%
Investment in Funds, at fair value	26,280,989		26,708,570
Income (Loss)	1,627,664		114,908
Clearing Fees Expenses	2,152		30,867
Other	16,216		17,056
Net Investment Income (Loss)	1,609,296		66,985
Investment Objective	Commodity Portfolio		Commodity Portfolio
Redemption Permitted	Monthly		Monthly
Willowbridge Master [Member]
Investment Holdings [Line Items]
Percentage of Partnership's Net Assets	11.67%		10.76%
Investment in Funds, at fair value	13,065,547		12,341,418
Income (Loss)	431,049		-405,881
Clearing Fees Expenses	9,355		16,724
Other	1,208		3,357
Net Investment Income (Loss)	420,486		-425,962
Investment Objective	Commodity Portfolio		Commodity Portfolio
Redemption Permitted	Monthly		Monthly
300 North Master [Member]
Investment Holdings [Line Items]
Income (Loss)			-4,635,268
Clearing Fees Expenses			27,842
Other			24,985
Net Investment Income (Loss)			-4,688,095
Investment Objective			Commodity Portfolio
Redemption Permitted			Monthly
Principle Master Fund L.P. [Member]
Investment Holdings [Line Items]
Income (Loss)			-2,354,404
Clearing Fees Expenses			34,963
Other			19,029
Net Investment Income (Loss)			-2,408,396
Investment Objective			Commodity Portfolio
Redemption Permitted			Monthly
PGM Master Fund L.P. [Member]
Investment Holdings [Line Items]
Percentage of Partnership's Net Assets	19.25%		18.14%
Investment in Funds, at fair value	21,558,669		20,791,945	20,791,945
Income (Loss)	1,523,208
Clearing Fees Expenses	33,313
Other	27,909
Net Investment Income (Loss)	$1,461,986
Investment Objective	Commodity Portfolio		Commodity Portfolio
Redemption Permitted	Monthly		Monthly
[1]	Defined in Note 1.

Financial_Instrument_Risks_Add

Financial Instrument Risks - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
General Partner OTC minimum	23.70%
General Partner OTC maximum	62.70%
Maturity on financial instruments	1 year