Ceres Abingdon (ABFF) 10-Q 7 Nov 19 2019 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares	9 Months Ended
	Sep. 30, 2019	Oct. 31, 2019
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q3
Entity Registrant Name	CERES ABINGDON L.P.
Entity Central Index Key	0001386164
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity Interactive Data Current	Yes
Entity Address, State or Province	NY
Class A [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		96,271.9877
Class D [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		4,532.8096
Class Z [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		227.0972

Statements of Financial Conditi

Statements of Financial Condition - USD ($)		Sep. 30, 2019	Dec. 31, 2018
Assets:
Investment in the Master(1) , at fair value	[1]	$ 143,021,980	$ 183,004,312
Redemptions receivable from the Master		1,748,535	1,543,808
Cash at MS&Co.		297,395	333,269
Total assets		145,067,910	184,881,389
Accrued expenses:
Ongoing selling agent fees		232,204	278,171
Management fees		180,767	230,423
General Partner fees		120,512	153,615
Professional fees		221,766	264,945
Redemptions payable to Limited Partners		1,177,035	836,276
Total liabilities		1,932,284	1,763,430
Partners' Capital:
Total partners' capital (net asset value)		143,135,626	183,117,959
Total liabilities and partners' capital		145,067,910	184,881,389
Class A [Member]
Partners' Capital:
Limited Partners		135,091,779	156,601,179
Total partners' capital (net asset value)		$ 135,091,779	$ 156,601,179
Net asset value per Redeemable Unit		$ 1,385.88	$ 1,313.04
Class D [Member]
Partners' Capital:
Limited Partners		$ 6,190,249	$ 22,960,575
Total partners' capital (net asset value)		$ 6,190,249	$ 22,960,575
Net asset value per Redeemable Unit		$ 1,365.65	$ 1,281.77
Class Z [Member]
Partners' Capital:
General Partner		$ 1,529,789	$ 2,006,492
Limited Partners		323,809	1,549,713
Total partners' capital (net asset value)		$ 1,853,598	$ 3,556,205
Net asset value per Redeemable Unit		$ 1,425.86	$ 1,330.76
[1]	Defined in Note 1.

Statements of Financial Condi_2

Statements of Financial Condition (Parenthetical) - shares	Sep. 30, 2019	Dec. 31, 2018
Class A [Member]
Limited Partners capital, Redeemable Units outstanding	97,477.1067	119,266.5507
Class D [Member]
Limited Partners capital, Redeemable Units outstanding	4,532.8096	17,913.2276
Class Z [Member]
General Partner capital, Redeemable Units outstanding	1,072.8890	1,507.7830
Limited Partners capital, Redeemable Units outstanding	227.0972	1,164.5352

Statements of Income and Expens

Statements of Income and Expenses - USD ($)		3 Months Ended		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Investment Income:
Interest income allocated from the Master		$ 730,041	$ 905,165	$ 2,601,247	$ 2,339,738
Expenses:
Expenses allocated from the Master		91,880	84,087	227,042	232,610
Ongoing selling agent fees		744,087	908,360	2,321,529	2,759,647
Management fees		602,367	750,529	1,916,015	2,276,176
General Partner fees		401,578	500,353	1,277,344	1,517,450
Professional fees		115,563	137,828	360,756	416,492
Total expenses		1,955,475	2,381,157	6,102,686	7,202,375
Net investment loss		(1,225,434)	(1,475,992)	(3,501,439)	(4,862,637)
Net gains (losses) on investment in the Master:
Net realized gains (losses) on closed contracts allocated from the Master		13,342,893	5,500,874	5,345,539	10,006,410
Net change in unrealized gains (losses) on open contracts allocated from the Master		(333,604)	(2,741,624)	7,914,611	(6,323,960)
Total trading results		13,009,289	2,759,250	13,260,150	3,682,450
Net income (loss)		11,783,855	1,283,258	9,758,711	(1,180,187)
Class A [Member]
Net gains (losses) on investment in the Master:
Net income (loss)		$ 9,621,212	$ 1,022,509	$ 7,752,705	$ (1,320,867)
Net income (loss) per Redeemable Unit	[1]	$ 90	$ 8.24	$ 72.84	$ (8.27)
Weighted average Redeemable Units outstanding		101,684.7684	123,973.8877	109,438.5334	126,386.0069
Class D [Member]
Net gains (losses) on investment in the Master:
Net income (loss)		$ 1,943,514	$ 218,762	$ 1,785,922	$ 83,106
Net income (loss) per Redeemable Unit	[1]	$ 92.68	$ 12.21	$ 83.88	$ 4.64
Weighted average Redeemable Units outstanding		11,383.5093	17,913.2276	15,736.6548	17,913.2276
Class Z [Member]
Net gains (losses) on investment in the Master:
Net income (loss)		$ 219,129	$ 41,987	$ 220,084	$ 57,574
Net income (loss) per Redeemable Unit	[1]	$ 99.26	$ 15.25	$ 95.10	$ 12.63
Weighted average Redeemable Units outstanding		1,735.2312	2,752.6882	2,304.2346	2,780.9420
[1]	Represents the change in net asset value per Redeemable Unit during the period.

Statements of Changes in Partne

Statements of Changes in Partners' Capital - USD ($)	Total	Limited Partners [Member]	General Partner [Member]	Class A [Member]	Class A [Member]Limited Partners [Member]	Class A [Member]General Partner [Member]	Class D [Member]	Class D [Member]Limited Partners [Member]	Class Z [Member]	Class Z [Member]Limited Partners [Member]	Class Z [Member]General Partner [Member]
Balance, value at Dec. 31, 2017	$ 207,686,502			$ 179,443,770			$ 24,077,868		$ 4,164,864
Balance, Redeemable Units at Dec. 31, 2017	149,619.0995			128,698.8997			17,913.2276		3,006.9722
Subscriptions, value		$ 6,619,049			$ 6,619,049
Subscriptions, Redeemable Units		4,715.9660			4,715.9660
Redemptions, value		$ (15,167,107)	$ (375,000)		$ (15,167,107)						$ (375,000)
Redemptions, Redeemable Units		(11,067.9930)	(254.2840)		(11,067.9930)						(254.2840)
Net income (loss)	$ (1,180,187)			$ (1,320,867)			$ 83,106		$ 57,574
Balance, value at Sep. 30, 2018	$ 197,583,257			$ 169,574,845			$ 24,160,974		$ 3,847,438
Balance, Redeemable Units at Sep. 30, 2018	143,012.7885			122,346.8727			17,913.2276		2,752.6882
Balance, value at Jun. 30, 2018	$ 199,054,737			$ 171,307,074			$ 23,942,212		$ 3,805,451
Balance, Redeemable Units at Jun. 30, 2018	145,001.8595			124,335.9437			17,913.2276		2,752.6882
Subscriptions, value		$ 1,572,922			$ 1,572,922
Subscriptions, Redeemable Units		1,132.5700			1,132.5700
Redemptions, value		$ (4,327,660)			$ (4,327,660)
Redemptions, Redeemable Units		(3,121.6410)			(3,121.6410)
Net income (loss)	$ 1,283,258			$ 1,022,509			$ 218,762		$ 41,987
Balance, value at Sep. 30, 2018	$ 197,583,257			$ 169,574,845			$ 24,160,974		$ 3,847,438
Balance, Redeemable Units at Sep. 30, 2018	143,012.7885			122,346.8727			17,913.2276		2,752.6882
Balance, value at Dec. 31, 2018	$ 183,117,959			$ 156,601,179			$ 22,960,575		$ 3,556,205
Balance, Redeemable Units at Dec. 31, 2018	139,852.0965			119,266.5507			17,913.2276		2,672.3182
Subscriptions, value		$ 331,970			$ 331,970
Subscriptions, Redeemable Units		251.6910			251.6910
Redemptions, value		$ (49,438,000)	$ (635,014)		$ (29,594,075)			$ (18,556,248)		$ (1,287,677)	$ (635,014)
Redemptions, Redeemable Units		(36,358.9910)	(434.8940)		(22,041.1350)			(13,380.4180)		(937.4380)	(434.8940)
Net income (loss)	$ 9,758,711			$ 7,752,705			$ 1,785,922		$ 220,084
Balance, value at Sep. 30, 2019	$ 143,135,626			$ 135,091,779			$ 6,190,249		$ 1,853,598
Balance, Redeemable Units at Sep. 30, 2019	103,309.9025			97,477.1067			4,532.8096		1,299.9862
Balance, value at Jun. 30, 2019	$ 161,280,765			$ 135,382,989			$ 22,802,983		$ 3,094,793
Balance, Redeemable Units at Jun. 30, 2019	124,718.0605			104,471.9507			17,913.2276		2,332.8822
Subscriptions, value		$ 57,317			$ 57,317
Subscriptions, Redeemable Units		40.6410			40.6410
Redemptions, value		$ (29,576,310)	$ (410,001)		$ (9,969,739)	$ 0		$ (18,556,248)		$ (1,050,323)	$ (410,001)
Redemptions, Redeemable Units		(21,175.9600)	(272.8390)		(7,035.4850)			(13,380.4180)		(760.0570)	(272.8390)
Net income (loss)	$ 11,783,855			$ 9,621,212			$ 1,943,514		$ 219,129
Balance, value at Sep. 30, 2019	$ 143,135,626			$ 135,091,779			$ 6,190,249		$ 1,853,598
Balance, Redeemable Units at Sep. 30, 2019	103,309.9025			97,477.1067			4,532.8096		1,299.9862

Organization

Organization	9 Months Ended
	Sep. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	1. Organization: Ceres Abingdon L.P. (the “Partnership”) is a limited partnership organized on November 8, 2005, under the partnership laws of the State of New York, to engage, directly or indirectly, in the speculative trading of a diversified portfolio of commodity interests including futures, option, swap and forward contracts. The sectors traded include currencies, energy, grains, indices, U.S. and non-U.S. Ceres Managed Futures LLC, a Delaware limited liability company, acts as the general partner (the “General Partner”) and commodity pool operator of the Partnership. The General Partner is a wholly-owned subsidiary of Morgan Stanley Domestic Holdings, Inc. (“MSD Holdings”). MSD Holdings is ultimately owned by Morgan Stanley. Morgan Stanley is a publicly held company whose shares are listed on the New York Stock Exchange. Morgan Stanley is engaged in various financial services and other businesses. As of September 30, 2019, all trading decisions for the Partnership are made by Winton Capital Management Limited (the “Advisor”). During the reporting periods ended September 30, 2019 and 2018, the Partnership’s and the Master’s commodity broker was Morgan Stanley & Co. LLC (“MS&Co.”), a registered futures commission merchant. JPMorgan Chase Bank, N.A (“JPMorgan”) was also a foreign exchange forward contract counterparty for the Master. The Partnership and the Master deposited a portion of their cash in non-trading On February 1, 2007, the Partnership allocated substantially all of its capital to the Master, a limited partnership organized under the partnership laws of the State of New York, having the same investment objective as the Partnership. The Master permits accounts managed by the Advisor pursuant to Diversified Macro Strategies (formerly, the Winton Futures Program, as applied without equities), the Advisor’s proprietary, systematic trading program, to invest together in one trading vehicle. The General Partner is also the general partner of the Master. Individual and pooled accounts currently managed by the Advisor, including the Partnership, are permitted to be limited partners of the Master. The General Partner and the Advisor believe that trading through this master/feeder structure promotes efficiency and economy in the trading process. Expenses to investors as a result of the investment in the Master are approximately the same as if the Partnership traded directly, and redemption rights are not affected. The General Partner and the Advisor agreed that the Advisor will trade the Partnership’s assets allocated to the Advisor at a level that is up to 1.5 times the amount of assets allocated. A limited partner in the Master may withdraw all or part of its capital contribution and undistributed profits, if any, from the Master as of the end of any month (the “Redemption Date”) after a request has been made to the General Partner at least three days in advance of the Redemption Date. Such withdrawals are classified as a liability when the limited partner in the Master elects to redeem and informs the Master. The General Partner is not aware of any material changes to the trading program discussed above during the fiscal quarter ended September 30, 2019. On April 1, 2011, the Partnership began offering “Class A” Redeemable Units, “Class D” Redeemable Units and “Class Z” Redeemable Units pursuant to the offering memorandum. All Redeemable Units issued prior to April 1, 2011 were deemed Class A Redeemable Units. The rights, liabilities, risks, and fees associated with investment in the Class A Redeemable Units did not change. “Class D” Redeemable Units and “Class Z” Redeemable Units were first issued on April 1, 2011 and August 1, 2011, respectively. Class A Redeemable Units, Class D Redeemable Units and Class Z Redeemable Units will each be referred to as a “Class” and collectively referred to as the “Classes.” The Class of Redeemable Units that a limited partner receives upon a 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 any Class of Redeemable Units to investors at its discretion. Class A Redeemable Units and Class D Redeemable Units are available to taxable U.S. individuals and institutions, U.S. tax exempt individuals and institutions and non-U.S. investors. Class Z Redeemable Units are offered to limited partners who receive advisory services from Morgan Stanley Smith Barney LLC (doing business as Morgan Stanley Wealth Management) (“Morgan Stanley Wealth Management”) and certain employees of Morgan Stanley and its subsidiaries (and their family members). Class A Redeemable Units, Class D Redeemable Units, and Class Z Redeemable Units are identical, except that Class D Redeemable Units are subject to a monthly ongoing selling agent fee equal to 1/12th of % (a 0.75% annual rate) of the net assets of Class D as of the end of each month, which differs from the Class A monthly ongoing selling agent fee of 1/12th of % (a 2.00% annual rate) of the net assets of Class A as of the end of each month. Class Z Redeemable Units are not subject to a monthly ongoing selling agent fee. At September 30, 2019 and December 31, 2018, the Partnership owned approximately 64.0% and 53.9%, respectively, of the Master. The Partnership intends to continue to invest substantially all of its assets in the Master. The performance of the Partnership is directly affected by the performance of the Master. The Master’s trading of futures, forward, swap and option contracts, if applicable, on commodities is done primarily on U.S. commodity exchanges and non-U.S. The Master has entered into a foreign exchange brokerage account agreement and a futures brokerage account agreement with MS&Co. The Partnership has also entered into a futures brokerage account agreement with MS&Co. The Partnership, through its investment in the Master, pays MS&Co. (or will reimburse MS&Co., if previously paid) its allocable share of all trading fees for the clearing and, where applicable, execution of transactions as well as exchange, user, give-up, The Partnership has also entered into a selling agreement with Morgan Stanley Wealth Management (as amended, the “Selling Agreement”). Pursuant to the Selling Agreement, Morgan Stanley Wealth Management is paid a monthly ongoing selling agent fee at the rates described above. The ongoing selling agent fee received by Morgan Stanley Wealth Management is shared with the properly registered/exempted financial advisors of Morgan Stanley Wealth Management who sell Class A and/or Class D Redeemable Units. On July 12, 2017, the Master entered into certain agreements with JPMorgan in connection with trading in forward foreign currency contracts on behalf of the Master and, indirectly, the Partnership. These agreements include a foreign exchange and bullion authorization agreement (“FX Agreement”), an International Swap Dealers Association, Inc. master agreement (“Master Agreement”), a schedule to the Master Agreement, a 2016 credit support annex for variation margin to the schedule and an institutional account agreement. Under the FX Agreement, JPMorgan charges a fee on the aggregate foreign currency transactions entered into on behalf of the Master during a month. In July 2015, the General Partner delegated certain administrative functions to SS&C Technologies, Inc., a Delaware corporation, currently doing business as SS&C GlobeOp (the “Administrator”). Pursuant to a master services agreement, the Administrator furnishes certain administrative, accounting, regulatory reporting, tax and other services as agreed from time to time. In addition, the Administrator maintains certain books and records of the Partnership. The cost of retaining the Administrator is allocated among the pools operated by the General Partner, including the Partnership.

Basis of Presentation and Summa

Basis of Presentation and Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2019
Accounting Policies [Abstract]
Basis of Presentation and Summary of Significant Accounting Policies	2. Basis of Presentation and Summary of Significant Accounting Policies: The accompanying financial statements and accompanying notes are unaudited but, in the opinion of the General Partner, include all adjustments, consisting only of normal recurring adjustments, necessary for a fair presentation of the Partnership’s financial condition at September 30, 2019, and the results of its operations and the changes in partners’ capital for the three and nine months ended September 30, 2019 and 2018. These financial statements present the results for 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 Due to the nature of commodity trading, the results of operations for the interim periods presented should not be considered indicative of the results that may be expected for the entire year . Use of Estimates 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, and those differences could be material. Profit Allocation 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 contributions and profits, if any, net of distributions, redemptions and losses, if any. Statement of Cash Flows The Partnership has not provided a Statement of Cash Flows, as permitted by Accounting Standards Codification (“ASC”) 230, “ Statement of Cash Flows.” Partnership’s Investment The Partnership carries its investment in the Master at fair value based on the Master’s net asset value per Redeemable Unit, as a practical expedient, as calculated by the Master. The valuation of the Master’s investments, including the classification within the fair value hierarchy of the investments held by the Master, are described in Note 5, “Fair Value Measurements Master’s Investments All commodity interests of the Master, including derivative financial instruments and derivative commodity instruments, are held for trading purposes. The commodity interests are recorded on the trade date and open contracts are recorded at fair value (as described in Note 5, “Fair Value Measurements”) 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 and are determined using the first-in, first-out Master’s Cash The Master’s restricted cash is equal to the cash portion of assets on deposit to meet margin requirements, as determined by the exchange or counterparty, and required by MS&Co and/or JPMorgan, as applicable. At September 30, 2019 and December 31, 2018, the amount of cash held for margin requirements was $32,134,026 and $40,002,084, respectively. Cash that is not classified as restricted cash is therefore classified as unrestricted cash. The Master’s restricted and unrestricted cash includes cash denominated in foreign currencies of $5,421,575 (cost of $5,463,508) and $2,271,393 (cost of $2,273,441) as of September 30, 2019 and December 31, 2018, respectively. Income Taxes Income Taxes “more-likely-than-not” more-likely-than-not . Investment Company Status 2013-08, “Financial Services — Investment Companies (Topic 946): Amendments to the Scope, Measurement and Disclosure Requirements” Net Income (Loss) per Redeemable Unit Net income (loss) per Redeemable Unit for each Class is calculated in accordance with ASC 946 “ Financial Services – Investment Companies “ Financial Highlights 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 The Master’s Statements of Financial Condition and Condensed Schedules of Investments as of September 30, 2019 and December 31, 2018 and Statements of Income and Expenses and Changes in Partners’ Capital for the three and nine months ended September 30, 2019 and 2018 are presented below: CMF Winton Master L.P. Statements of Financial Condition September 30, (Unaudited) December 31, Assets: Equity in trading accounts: Unrestricted cash $ 187,349,751 $ 312,715,105 Restricted cash 32,134,026 40,002,084 Net unrealized appreciation on open futures contracts 3,086,357 - Net unrealized appreciation on open forward contracts 2,543,984 - Total equity in trading accounts 225,114,118 352,717,189 Subscription receivable - 261,448 Total assets $ 225,114,118 $ 352,978,637 Liabilities and Partners’ Capital: Liabilities: Net unrealized depreciation on open futures contracts $ - $ 5,670,226 Net unrealized depreciation on open forward contracts - 2,569,275 Accrued expenses: Professional fees 58,494 54,808 Redemptions payable 1,971,751 5,484,714 Total liabilities 2,030,245 13,779,023 Partners’ Capital: General Partner, 0.0000 Redeemable Units outstanding at September 30, 2019 and December 31, 2018 - - Limited Partners, 50,650.5653 and 83,051.1742 Redeemable Units outstanding at September 30, 2019 and December 31, 2018, respectively 223,083,873 339,199,614 Total partners’ capital (net asset value) 223,083,873 339,199,614 Total liabilities and partners’ capital $ 225,114,118 $ 352,978,637 Net asset value per Redeemable Unit $ 4,404.37 $ 4,084.22 CMF Winton Master L.P. Condensed Schedule of Investments September 30, 2019 (Unaudited) Notional ($)/ Fair Value % of Partners’ Futures Contracts Purchased Currencies 802 $ (161,955) (0.07) % Energy 76 (223,240) (0.10) Grains 43 23,603 0.01 Indices 1,100 (169,960) (0.08) Interest Rates U.S. 824 (1,896,899) (0.85) Interest Rates Non-U.S. 10,101 3,343,086 1.50 Livestock 9 16,410 0.01 Metals 451 (2,164,140) (0.97) Softs 86 26,498 0.01 Total futures contracts purchased (1,206,597) (0.54) Futures Contracts Sold Currencies 1,841 2,587,066 1.16 Energy 1,002 2,251,943 1.01 Grains 1,162 (699,871) (0.31) Indices 378 994,756 0.45 Interest Rates U.S. 485 313,719 0.14 Livestock 173 (489,210) (0.22) Metals 86 (23,938) (0.01) Softs 1,328 (641,511) (0.30) Total futures contracts sold 4,292,954 1.92 Net unrealized appreciation on open futures contracts $ 3,086,357 1.38 % Unrealized Appreciation on Open Forward Contracts Currencies $ 103,069,545 $ 1,007,462 0.45 % Metals 771 3,218,682 1.44 Total unrealized appreciation on open forward contracts 4,226,144 1.89 Unrealized Depreciation on Open Forward Contracts Currencies $ 55,439,706 (474,156) (0.21) Metals 564 (1,208,004) (0.54) Total unrealized depreciation on open forward contracts (1,682,160) (0.75) Net unrealized appreciation on open forward contracts $ 2,543,984 1.14 % Ceres Abingdon L.P. Notes to Financial Statements (Unaudited) CMF Winton Master L.P. Condensed Schedule of Investments December 31, 2018 Notional ($)/ Fair Value % of Partners’ Futures Contracts Purchased Currencies 665 $ 498,240 0.15 % Energy 807 (7,683,693) (2.27) Grains 23 1,389 0.00 * Indices 598 (1,528,397) (0.45) Interest Rates U.S. 274 511,781 0.15 Interest Rates Non-U.S. 6,276 3,509,049 1.04 Livestock 24 10,030 0.00 * Metals 110 (167,968) (0.05) Softs 78 (275,765) (0.08) Total futures contracts purchased (5,125,334) (1.51) Futures Contracts Sold Currencies 2,903 (2,494,808) (0.74) Energy 833 3,839,606 1.13 Grains 1,819 698,944 0.21 Indices 459 721,056 0.21 Interest Rates U.S. 356 (418,226) (0.12) Interest Rates Non-U.S. 612 (946,029) (0.28) Livestock 182 119,878 0.04 Metals 602 (2,647,825) (0.78) Softs 1,888 582,512 0.17 Total futures contracts sold (544,892) (0.16) Net unrealized depreciation on open futures contracts $ (5,670,226) (1.67) % Unrealized Appreciation on Open Forward Contracts Currencies $ 77,973,985 $ 1,063,380 0.31 % Metals 754 1,571,426 0.46 Total unrealized appreciation on open forward contracts 2,634,806 0.77 Unrealized Depreciation on Open Forward Contracts Currencies $ 59,643,530 (813,774) (0.24) Metals 875 (4,390,307) (1.29) Total unrealized depreciation on open forward contracts (5,204,081) (1.53) Net unrealized depreciation on open forward contracts $ (2,569,275) (0.76) % * Due to rounding. Ceres Abingdon L.P. Notes to Financial Statements (Unaudited) CMF Winton Master L.P. Statements of Income and Expenses and Changes in Partners’ Capital (Unaudited) Three Months Ended Nine Months Ended September 30, 2019 2018 2019 2018 Investment Income: Interest income $ 1,090,278 $ 1,679,291 $ 4,435,924 $ 4,321,432 Expenses: Clearing fees 122,086 139,512 331,631 379,163 Professional fees 15,750 17,000 47,250 51,195 Total expenses 137,836 156,512 378,881 430,358 Net investment income (loss) 952,442 1,522,779 4,057,043 3,891,074 Trading Results: Net gains (losses) on trading of commodity interests: Net realized gains (losses) on closed contracts 20,040,311 10,188,516 5,127,571 19,093,083 Net change in unrealized gains (losses) on open contracts (1,501,828) (5,094,858) 13,829,957 (10,389,816) Total trading results 18,538,483 5,093,658 18,957,528 8,703,267 Net income (loss) 19,490,925 6,616,437 23,014,571 12,594,341 Subscriptions - Limited Partners 3,557,318 6,677,129 4,564,935 16,119,957 Redemptions - Limited Partners (71,496,294) (6,502,039) (139,454,527) (50,000,530) Distribution of interest income to feeder funds (1,018,946) (1,568,242) (4,240,720) (3,927,544) Net increase (decrease) in Partners’ Capital (49,466,997) 5,223,285 (116,115,741) (25,213,776) Partners’ Capital, beginning of period 272,550,870 367,211,246 339,199,614 397,648,307 Partners’ Capital, end of period $ 223,083,873 $ 372,434,531 $ 223,083,873 $ 372,434,531 Net asset value per Redeemable Unit (50,650.5653 and 86,993.5300 Redeemable Units outstanding at September 30, 2019 and 2018, respectively) $ 4,404.37 $ 4,281.18 $ 4,404.37 $ 4,281.18 Net income (loss) per Redeemable Unit* $ 336.84 $ 76.26 $ 381.59 $ 126.35 Weighted average Redeemable Units outstanding 54,220.5443 87,200.3814 69,017.9863 88,973.5467 * Represents the change in net asset value per Redeemable Unit during the period before distribution of interest income to feeder funds.

Financial Highlights

Financial Highlights	9 Months Ended
	Sep. 30, 2019
Investment Company [Abstract]
Financial Highlights	3. Financial Highlights: Financial highlights for the limited partner classes as a whole for the three and nine months ended September 30, 2019 and 2018 were as follows: Three Months Ended September 30, 2019 2018 Per Redeemable Unit Performance (for a unit outstanding Class A Class D Class Z Class A Class D Class Z Net realized and unrealized gains (losses) $ 101.25 $ 99.23 $ 103.51 $ 19.14 $ 18.58 $ 19.22 Net investment loss (11.25) (6.55) (4.25) (10.90) (6.37) (3.97) Increase (decrease) for the period 90.00 92.68 99.26 8.24 12.21 15.25 Net asset value per Redeemable Unit, beginning of period 1,295.88 1,272.97 1,326.60 1,377.78 1,336.57 1,382.45 Net asset value per Redeemable Unit, end of period $ 1,385.88 $ 1,365.65 $ 1,425.86 $ 1,386.02 $ 1,348.78 $ 1,397.70 Nine Months Ended September 30, 2019 2018 Per Redeemable Unit Performance (for a unit outstanding Class A Class D Class Z Class A Class D Class Z Net realized and unrealized gains (losses) $ 102.32 $ 99.99 $ 104.31 $ 26.84 $ 26.06 $ 27.36 Net investment loss (29.48) (16.11) (9.21) (35.11) (21.42) (14.73) Increase (decrease) for the period 72.84 83.88 95.10 (8.27) 4.64 12.63 Net asset value per Redeemable Unit, beginning of period 1,313.04 1,281.77 1,330.76 1,394.29 1,344.14 1,385.07 Net asset value per Redeemable Unit, end of period $ 1,385.88 $ 1,365.65 $ 1,425.86 $ 1,386.02 $ 1,348.78 $ 1,397.70 Three Months Ended September 30, 2019 2018 Class A Class D Class Z Class A Class D Class Z Ratios to Average Limited Partners’ Capital:** Net investment loss*** (3.3) % (2.3) % (1.4) % (3.1) % (1.9) % (1.1) % Operating expenses 5.1 % 4.6 % 3.6 % 5.0 % 3.7 % 2.9 % Incentive fees - % - % - % - % - % - % Total expenses 5.1 % 4.6 % 3.6 % 5.0 % 3.7 % 2.9 % Total return: Total return before incentive fees 6.9 % 7.3 % 7.5 % 0.6 % 0.9 % 1.1 % Incentive fees - % - % - % - % - % - % Total return after incentive fees 6.9 % 7.3 % 7.5 % 0.6 % 0.9 % 1.1 % Nine Months Ended September 30, 2019 2018 Class A Class D Class Z Class A Class D Class Z Ratios to Average Limited Partners’ Capital:** Net investment loss*** (3.0) % (1.8) % (0.9) % (3.4) % (2.1) % (1.4) % Operating expenses 5.1 % 4.0 % 3.2 % 5.0 % 3.7 % 2.9 % Incentive fees - % - % - % - % - % - % Total expenses 5.1 % 4.0 % 3.2 % 5.0 % 3.7 % 2.9 % Total return: Total return before incentive fees 5.5 % 6.5 % 7.1 % (0.6) % 0.3 % 0.9 % Incentive fees - % - % - % - % - % - % Total return after incentive fees 5.5 % 6.5 % 7.1 % (0.6) % 0.3 % 0.9 % * Net investment loss per Redeemable Unit is calculated by dividing the interest income less total expenses by the average number of Redeemable Units outstanding during the period. The net realized and unrealized gains (losses) per Redeemable Unit is a balancing amount necessary to reconcile the change in net asset value per Redeemable Unit with the other per unit information. ** Annualized (except for incentive fees). *** Interest income allocated from the Master less total expenses. The above ratios and total return may vary for individual investors based on the timing of capital transactions during the period. Additionally, these ratios are calculated for the limited partner class for the Classes using the limited partners’ share of income, expenses and average partners’ capital of the Partnership and include the income and expenses allocated from the Master. Financial Highlights of the Master: Three Months Ended Nine Months Ended 2019 2018 2019 2018 Per Redeemable Unit Performance (for a unit outstanding throughout the period):* Net realized and unrealized gains (losses) $ 319.27 $ 58.80 $ 322.81 $ 82.62 Net investment income (loss) 17.57 17.46 58.78 43.73 Increase (decrease) for the period 336.84 76.26 381.59 126.35 Distribution of interest income to feeder funds (18.79) (17.98) (61.44) (44.14) Net asset value per Redeemable Unit, beginning of period 4,086.32 4,222.90 4,084.22 4,198.97 Net asset value per Redeemable Unit, end of period $ 4,404.37 $ 4,281.18 $ 4,404.37 $ 4,281.18 Three Months Ended Nine Months Ended 2019 2018 2019 2018 Ratios to Average Limited Partners’ Capital:** Net investment income (loss)*** 1.5 % 1.6 % 1.9 % 1.4 % Operating expenses 0.2 % 0.2 % 0.2 % 0.2 % Total return 8.2 % 1.8 % 9.3 % 3.0 % * Net investment income (loss) per Redeemable Unit is calculated by dividing the interest income less total expenses by the average number of Redeemable Units outstanding during the period. The net realized and unrealized gains (losses) per Redeemable Unit is a balancing amount necessary to reconcile the change in net asset value per Redeemable Unit with the other per unit information. ** Annualized. *** Interest income less total expenses. The above ratios and total return may vary for individual investors based on the timing of capital transactions during the period. Additionally, these ratios are calculated for the limited partner class using the limited partners’ share of income, expenses and average partners’ capital.

Trading Activities

Trading Activities	9 Months Ended
	Sep. 30, 2019
Brokers and Dealers [Abstract]
Trading Activities	4. Trading Activities: The Partnership was formed for the purpose of trading commodity interests, including derivative financial instruments and derivative commodity instruments. The Partnership invests substantially all of its assets through a “master/feeder” structure. The Partnership’s pro-rata The futures brokerage account agreements with MS&Co. give the Partnership and the Master, respectively, the legal right to net unrealized gains and losses on open futures and open forward contracts. The Master nets, for financial reporting purposes, the unrealized gains and losses on open futures and open forward contracts in the Statements of Financial Condition as the criteria under ASC 210-20, “Balance Sheet,” Trading and transaction fees are based on the number of trades executed by the Advisor for the Master and the Partnership’s percentage ownership of the Master. All clearing fees paid to MS&Co. are borne by the Master and allocated to the Master’s limited partners, including the Partnership. All of the commodity interests owned by the Master are held for trading purposes. The monthly average number of futures contracts traded by the Master during the three months ended September 30, 2019 and 2018 was 19,348 and 20,643, respectively. The monthly average number of futures contracts traded by the Master during the nine months ended September 30, 2019 and 2018 was 17,642 and 19,094, respectively. The monthly average number of metals forward contracts traded by the Master during the three months ended September 30, 2019 and 2018 was 1,474 and 1,514, respectively. The monthly average number of metals forward contracts traded by the Master during the nine months ended September 30, 2019 and 2018 was 1,636 and 1,756, respectively. The monthly average notional value of currency forward contracts traded by the Master during the three months ended September 30, 2019 and 2018 was $206,938,261 and $211,292,847, respectively. The monthly average notional value of currency forward contracts traded by the Master during the nine months ended September 30, 2019 and 2018 was $220,003,606 and $271,160,477, respectively. The following tables summarize the gross and net amounts recognized relating to assets and liabilities of the Master’s derivatives and their offsetting subject to master netting agreements or similar arrangements as of September 30, 2019 and December 31, 2018, respectively. September 30, 2019 Gross Amounts Recognized Gross Amounts Offset in the Statements of Financial Condition Amounts Presented in the Statements of Financial Condition Gross Amounts Not Offset in the Statements of Financial Condition Net Amount Financial Instruments Cash Collateral Received/ Pledged* Assets MS&Co. Futures $ 12,255,264 $ (9,168,907) $ 3,086,357 $ - $ - $ 3,086,357 Forwards 3,218,682 (1,208,004) 2,010,678 - - 2,010,678 15,473,946 (10,376,911) 5,097,035 - - 5,097,035 JPMorgan Forwards 1,007,462 (474,156) 533,306 - - 533,306 Total assets $ 16,481,408 $ (10,851,067) $ 5,630,341 $ - $ - $ 5,630,341 Liabilities MS&Co. Futures $ (9,168,907) $ 9,168,907 $ - $ - $ - $ - Forwards (1,208,004) 1,208,004 - - - - (10,376,911) 10,376,911 - - - - JPMorgan Forwards (474,156) 474,156 - - - - Total liabilities $ (10,851,067) $ 10,851,067 $ - $ - $ - $ - Net fair value $ 5,630,341 * December 31, 2018 Gross Amounts Recognized Gross Amounts Offset in the Statements of Financial Condition Amounts Presented in the Statements of Financial Condition Gross Amounts Not Offset in the Statements of Financial Condition Net Amount Financial Instruments Cash Collateral Received/ Pledged* Assets MS&Co. Futures $ 12,642,665 $ (12,642,665) $ - $ - $ - $ - Forwards 1,579,370 (1,579,370) - - - - 14,222,035 (14,222,035) - - - - JPMorgan Forwards 1,055,436 (813,774) 241,662 - - 241,662 Total assets $ 15,277,471 $ (15,035,809) $ 241,662 $ - $ - $ 241,662 Liabilities MS&Co. Futures $ (18,312,891) $ 12,642,665 $ (5,670,226) $ - $ 5,670,226 $ - Forwards (4,390,307) 1,579,370 (2,810,937) - 2,810,937 - (22,703,198) 14,222,035 (8,481,163) - 8,481,163 - JPMorgan Forwards (813,774) 813,774 - - - - Total liabilities $ (23,516,972) $ 15,035,809 $ (8,481,163) $ - $ 8,481,163 $ - Net fair value $ 241,662 * * In the event of default by the Master, MS&Co., the Master’s commodity futures broker and a counterparty to certain of the Master’s non-exchange-traded non-exchange-traded The following tables indicate the gross fair values of the Master’s derivative instruments of futures and forward contracts as separate assets and liabilities as of September 30, 2019 and December 31, 2018, respectively. September 30, Assets Futures Contracts Currencies $ 2,592,192 Energy 2,351,615 Grains 67,071 Indices 1,393,447 Interest Rates U.S. 426,468 Interest Rates Non-U.S. 5,072,929 Livestock 16,538 Metals 52,802 Softs 282,202 Total unrealized appreciation on open futures contracts 12,255,264 Liabilities Futures Contracts Currencies (167,081) Energy (322,912) Grains (743,339) Indices (568,651) Interest Rates U.S. (2,009,648) Interest Rates Non-U.S. (1,729,843) Livestock (489,338) Metals (2,240,880) Softs (897,215) Total unrealized depreciation on open futures contracts (9,168,907) Net unrealized appreciation on open futures contracts $ 3,086,357 * Assets Forward Contracts Currencies $ 1,007,462 Metals 3,218,682 Total unrealized appreciation on open forward contracts 4,226,144 Liabilities Forward Contracts Currencies (474,156) Metals (1,208,004) Total unrealized depreciation on open forward contracts (1,682,160) Net unrealized appreciation on open forward contracts $ 2,543,984 ** * This amount is in “Net unrealized appreciation on open futures contracts” in the Master’s Statements of Financial Condition. ** This amount is in “Net unrealized appreciation on open forward contracts” in the Master’s Statements of Financial Condition. December 31, 2018 Assets Futures Contracts Currencies $ 1,121,770 Energy 3,883,716 Grains 763,198 Indices 755,310 Interest Rates U.S. 517,969 Interest Rates Non-U.S. 3,526,064 Livestock 198,893 Metals 171,670 Softs 1,704,075 Total unrealized appreciation on open futures contracts 12,642,665 Liabilities Futures Contracts Currencies (3,118,338) Energy (7,727,803) Grains (62,865) Indices (1,562,651) Interest Rates U.S. (424,414) Interest Rates Non-U.S. (963,044) Livestock (68,985) Metals (2,987,463) Softs (1,397,328) Total unrealized depreciation on open futures contracts (18,312,891) Net unrealized depreciation on open futures contracts $ (5,670,226) * Assets Forward Contracts Currencies $ 1,063,380 Metals 1,571,426 Total unrealized appreciation on open forward contracts 2,634,806 Liabilities Forward Contracts Currencies (813,774) Metals (4,390,307) Total unrealized depreciation on open forward contracts (5,204,081) Net unrealized depreciation on open forward contracts $ (2,569,275) ** * This amount is in “Net unrealized depreciation on open futures contracts” in the Master’s Statements of Financial Condition. ** This amount is in “Net unrealized depreciation on open forward contracts” in the Master’s Statements of Financial Condition. The following table indicates the Master’s total trading gains and losses, by market sector, on derivative instruments for the three and nine months ended September 30, 2019 and 2018, respectively. Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Sector Currencies $ 6,885,809 $ (78,498) $ 7,923,279 $ (9,856,743) Energy (1,287,178) (2,007,617) (14,325,701) 8,672,759 Grains 604,917 396,833 897,485 112,229 Indices 869,913 1,256,270 6,298,338 (295,367) Interest Rates U.S. 4,765,039 (586,953) 7,637,256 (862,483) Interest Rates Non-U.S. 7,017,465 (2,624,227) 18,069,062 1,257,197 Livestock (617,023) 47,145 (4,049,838) (986,778) Metals (775,280) 5,664,661 (4,700,905) 5,658,715 Softs 1,074,821 3,026,044 1,208,552 5,003,738 Total $ 18,538,483 *** $ 5,093,658 *** $ 18,957,528 *** $ 8,703,267 *** *** This amount is in “Total trading results” in the Master’s Statements of Income and Expenses and Changes in Partners’ Capital.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2019
Fair Value Disclosures [Abstract]
Fair Value Measurements	5. Fair Value Measurements: Master’s Fair Value Measurements The fair value of exchange-traded futures and forward contracts is determined by the various exchanges, and reflects the settlement price for each contract as of the close of business on the last business day of the reporting period. The fair value of foreign currency forward contracts is extrapolated on a forward basis from the spot prices quoted as of approximately 3:00 P.M. (E.T.) on the last business day of the reporting period from various exchanges. The fair value of non-exchange-traded The Master considers prices for commodity futures contracts to be based on unadjusted quoted prices in active markets for identical assets and liabilities (Level 1). The values of U.S. Treasury bills and non-exchange-traded September 30, 2019 Total Level 1 Level 2 Level 3 Assets Futures $ 12,255,264 $ 12,255,264 $ - $ - Forwards 4,226,144 - 4,226,144 - Total assets $ 16,481,408 $ 12,255,264 $ 4,226,144 $ - Liabilities Futures $ 9,168,907 $ 9,168,907 $ - $ - Forwards 1,682,160 - 1,682,160 - Total liabilities $ 10,851,067 $ 9,168,907 $ 1,682,160 $ - December 31, 2018 Total Level 1 Level 2 Level 3 Assets Futures $ 12,642,665 $ 12,642,665 $ - $ - Forwards 2,634,806 - 2,634,806 - Total assets $ 15,277,471 $ 12,642,665 $ 2,634,806 $ - Liabilities Futures $ 18,312,891 $ 18,312,891 $ - $ - Forwards 5,204,081 - 5,204,081 - Total liabilities $ 23,516,972 $ 18,312,891 $ 5,204,081 $ -

Financial Instrument Risks

Financial Instrument Risks	9 Months Ended
	Sep. 30, 2019
Investments, All Other Investments [Abstract]
Financial Instrument Risks	6. Financial Instrument Risks: In the normal course of business, the Partnership, through its investment in the Master, is party to financial instruments with off-balance over-the-counter Futures Contracts Forward Foreign Currency Contracts London Metal Exchange Forward Contracts Market risk is the potential for changes in the value of the financial instruments traded by the Master 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 Master is exposed to market risk equal to the value of futures and forward contracts held and unlimited liability on such contracts sold short. Credit risk is the possibility that a loss may occur due to the failure of a counterparty to perform according to the terms of a contract. The Partnership’s/Master’s 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/Master’s risk of loss is reduced through the use of legally enforceable master netting agreements with counterparties that permit the Partnership/Master to offset unrealized gains and losses and other assets and liabilities with such counterparties upon the occurrence of certain events. The Partnership/Master has credit risk and concentration risk, as MS&Co., an MS&Co. affiliate or JPMorgan are counterparties or brokers with respect to the Partnership’s/Master’s assets. Credit risk with respect to exchange-traded instruments is reduced to the extent that, through MS&Co. or an MS&Co. affiliate, the Partnership’s/Master’s counterparty is an exchange or clearing organization. The General Partner monitors and attempts to mitigate the Partnership’s/Master’s 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/Master 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 and forward contracts by sector, margin requirements, gain and loss transactions and collateral positions. 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 consequence of the organization of the Partnership as a limited partnership under New York law. The majority of these financial instruments mature within one year of the inception date. However, due to the nature of the Partnership’s/Master’s business, these instruments may not be held to maturity. In the ordinary course of business, the Master enters into contracts and agreements that contain various representations and warranties and which provide general indemnifications. The Master’s maximum exposure under these arrangements cannot be determined, as this could include future claims that have not yet been made against the Master. The Master considers the risk of any future obligation relating to these indemnifications to be remote.

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2019
Subsequent Events [Abstract]
Subsequent Events	7. Subsequent Events: The General Partner evaluates events that occur after the balance sheet date but before and up until financial statements are available to be issued. The General Partner has assessed the subsequent events through the date the financial statements were issued and has determined that there were no subsequent events requiring adjustment to or disclosure in the financial statements.

Basis of Presentation and Sum_2

Basis of Presentation and Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2019
Accounting Policies [Abstract]
Use of Estimates	Use of Estimates 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, and those differences could be material.
Profit Allocation	Profit Allocation 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 contributions and profits, if any, net of distributions, redemptions and losses, if any.
Statement of Cash Flows	Statement of Cash Flows The Partnership has not provided a Statement of Cash Flows, as permitted by Accounting Standards Codification (“ASC”) 230, “ Statement of Cash Flows.”
Partnership's Investment	Partnership’s Investment The Partnership carries its investment in the Master at fair value based on the Master’s net asset value per Redeemable Unit, as a practical expedient, as calculated by the Master. The valuation of the Master’s investments, including the classification within the fair value hierarchy of the investments held by the Master, are described in Note 5, “Fair Value Measurements
Master's Investments	Master’s Investments All commodity interests of the Master, including derivative financial instruments and derivative commodity instruments, are held for trading purposes. The commodity interests are recorded on the trade date and open contracts are recorded at fair value (as described in Note 5, “Fair Value Measurements”) 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 and are determined using the first-in, first-out Master’s Cash The Master’s restricted cash is equal to the cash portion of assets on deposit to meet margin requirements, as determined by the exchange or counterparty, and required by MS&Co and/or JPMorgan, as applicable. At September 30, 2019 and December 31, 2018, the amount of cash held for margin requirements was $32,134,026 and $40,002,084, respectively. Cash that is not classified as restricted cash is therefore classified as unrestricted cash. The Master’s restricted and unrestricted cash includes cash denominated in foreign currencies of $5,421,575 (cost of $5,463,508) and $2,271,393 (cost of $2,273,441) as of September 30, 2019 and December 31, 2018, respectively.
Income Taxes	Income Taxes Income Taxes “more-likely-than-not” more-likely-than-not .
Investment Company Status	Investment Company Status 2013-08, “Financial Services — Investment Companies (Topic 946): Amendments to the Scope, Measurement and Disclosure Requirements”
Net Income (Loss) per Redeemable Unit	Net Income (Loss) per Redeemable Unit Net income (loss) per Redeemable Unit for each Class is calculated in accordance with ASC 946 “ Financial Services – Investment Companies “ Financial Highlights

Basis of Presentation and Sum_3

Basis of Presentation and Summary of Significant Accounting Policies (Tables) - CMF Winton Master L.P. [Member]	9 Months Ended
	Sep. 30, 2019
Statements of Financial Condition	CMF Winton Master L.P. Statements of Financial Condition September 30, (Unaudited) December 31, Assets: Equity in trading accounts: Unrestricted cash $ 187,349,751 $ 312,715,105 Restricted cash 32,134,026 40,002,084 Net unrealized appreciation on open futures contracts 3,086,357 - Net unrealized appreciation on open forward contracts 2,543,984 - Total equity in trading accounts 225,114,118 352,717,189 Subscription receivable - 261,448 Total assets $ 225,114,118 $ 352,978,637 Liabilities and Partners’ Capital: Liabilities: Net unrealized depreciation on open futures contracts $ - $ 5,670,226 Net unrealized depreciation on open forward contracts - 2,569,275 Accrued expenses: Professional fees 58,494 54,808 Redemptions payable 1,971,751 5,484,714 Total liabilities 2,030,245 13,779,023 Partners’ Capital: General Partner, 0.0000 Redeemable Units outstanding at September 30, 2019 and December 31, 2018 - - Limited Partners, 50,650.5653 and 83,051.1742 Redeemable Units outstanding at September 30, 2019 and December 31, 2018, respectively 223,083,873 339,199,614 Total partners’ capital (net asset value) 223,083,873 339,199,614 Total liabilities and partners’ capital $ 225,114,118 $ 352,978,637 Net asset value per Redeemable Unit $ 4,404.37 $ 4,084.22
Condensed Schedule of Investments	CMF Winton Master L.P. Condensed Schedule of Investments September 30, 2019 (Unaudited) Notional ($)/ Fair Value % of Partners’ Futures Contracts Purchased Currencies 802 $ (161,955) (0.07) % Energy 76 (223,240) (0.10) Grains 43 23,603 0.01 Indices 1,100 (169,960) (0.08) Interest Rates U.S. 824 (1,896,899) (0.85) Interest Rates Non-U.S. 10,101 3,343,086 1.50 Livestock 9 16,410 0.01 Metals 451 (2,164,140) (0.97) Softs 86 26,498 0.01 Total futures contracts purchased (1,206,597) (0.54) Futures Contracts Sold Currencies 1,841 2,587,066 1.16 Energy 1,002 2,251,943 1.01 Grains 1,162 (699,871) (0.31) Indices 378 994,756 0.45 Interest Rates U.S. 485 313,719 0.14 Livestock 173 (489,210) (0.22) Metals 86 (23,938) (0.01) Softs 1,328 (641,511) (0.30) Total futures contracts sold 4,292,954 1.92 Net unrealized appreciation on open futures contracts $ 3,086,357 1.38 % Unrealized Appreciation on Open Forward Contracts Currencies $ 103,069,545 $ 1,007,462 0.45 % Metals 771 3,218,682 1.44 Total unrealized appreciation on open forward contracts 4,226,144 1.89 Unrealized Depreciation on Open Forward Contracts Currencies $ 55,439,706 (474,156) (0.21) Metals 564 (1,208,004) (0.54) Total unrealized depreciation on open forward contracts (1,682,160) (0.75) Net unrealized appreciation on open forward contracts $ 2,543,984 1.14 % Ceres Abingdon L.P. Notes to Financial Statements (Unaudited) CMF Winton Master L.P. Condensed Schedule of Investments December 31, 2018 Notional ($)/ Fair Value % of Partners’ Futures Contracts Purchased Currencies 665 $ 498,240 0.15 % Energy 807 (7,683,693) (2.27) Grains 23 1,389 0.00 * Indices 598 (1,528,397) (0.45) Interest Rates U.S. 274 511,781 0.15 Interest Rates Non-U.S. 6,276 3,509,049 1.04 Livestock 24 10,030 0.00 * Metals 110 (167,968) (0.05) Softs 78 (275,765) (0.08) Total futures contracts purchased (5,125,334) (1.51) Futures Contracts Sold Currencies 2,903 (2,494,808) (0.74) Energy 833 3,839,606 1.13 Grains 1,819 698,944 0.21 Indices 459 721,056 0.21 Interest Rates U.S. 356 (418,226) (0.12) Interest Rates Non-U.S. 612 (946,029) (0.28) Livestock 182 119,878 0.04 Metals 602 (2,647,825) (0.78) Softs 1,888 582,512 0.17 Total futures contracts sold (544,892) (0.16) Net unrealized depreciation on open futures contracts $ (5,670,226) (1.67) % Unrealized Appreciation on Open Forward Contracts Currencies $ 77,973,985 $ 1,063,380 0.31 % Metals 754 1,571,426 0.46 Total unrealized appreciation on open forward contracts 2,634,806 0.77 Unrealized Depreciation on Open Forward Contracts Currencies $ 59,643,530 (813,774) (0.24) Metals 875 (4,390,307) (1.29) Total unrealized depreciation on open forward contracts (5,204,081) (1.53) Net unrealized depreciation on open forward contracts $ (2,569,275) (0.76) % * Due to rounding.
Statements of Income and Expenses and Changes in Partners' Capital	Ceres Abingdon L.P. Notes to Financial Statements (Unaudited) CMF Winton Master L.P. Statements of Income and Expenses and Changes in Partners’ Capital (Unaudited) Three Months Ended Nine Months Ended September 30, 2019 2018 2019 2018 Investment Income: Interest income $ 1,090,278 $ 1,679,291 $ 4,435,924 $ 4,321,432 Expenses: Clearing fees 122,086 139,512 331,631 379,163 Professional fees 15,750 17,000 47,250 51,195 Total expenses 137,836 156,512 378,881 430,358 Net investment income (loss) 952,442 1,522,779 4,057,043 3,891,074 Trading Results: Net gains (losses) on trading of commodity interests: Net realized gains (losses) on closed contracts 20,040,311 10,188,516 5,127,571 19,093,083 Net change in unrealized gains (losses) on open contracts (1,501,828) (5,094,858) 13,829,957 (10,389,816) Total trading results 18,538,483 5,093,658 18,957,528 8,703,267 Net income (loss) 19,490,925 6,616,437 23,014,571 12,594,341 Subscriptions - Limited Partners 3,557,318 6,677,129 4,564,935 16,119,957 Redemptions - Limited Partners (71,496,294) (6,502,039) (139,454,527) (50,000,530) Distribution of interest income to feeder funds (1,018,946) (1,568,242) (4,240,720) (3,927,544) Net increase (decrease) in Partners’ Capital (49,466,997) 5,223,285 (116,115,741) (25,213,776) Partners’ Capital, beginning of period 272,550,870 367,211,246 339,199,614 397,648,307 Partners’ Capital, end of period $ 223,083,873 $ 372,434,531 $ 223,083,873 $ 372,434,531 Net asset value per Redeemable Unit (50,650.5653 and 86,993.5300 Redeemable Units outstanding at September 30, 2019 and 2018, respectively) $ 4,404.37 $ 4,281.18 $ 4,404.37 $ 4,281.18 Net income (loss) per Redeemable Unit* $ 336.84 $ 76.26 $ 381.59 $ 126.35 Weighted average Redeemable Units outstanding 54,220.5443 87,200.3814 69,017.9863 88,973.5467 * Represents the change in net asset value per Redeemable Unit during the period before distribution of interest income to feeder funds.

Financial Highlights (Tables)

Financial Highlights (Tables)	9 Months Ended
	Sep. 30, 2019
Financial Highlights	Financial highlights for the limited partner classes as a whole for the three and nine months ended September 30, 2019 and 2018 were as follows: Three Months Ended September 30, 2019 2018 Per Redeemable Unit Performance (for a unit outstanding Class A Class D Class Z Class A Class D Class Z Net realized and unrealized gains (losses) $ 101.25 $ 99.23 $ 103.51 $ 19.14 $ 18.58 $ 19.22 Net investment loss (11.25) (6.55) (4.25) (10.90) (6.37) (3.97) Increase (decrease) for the period 90.00 92.68 99.26 8.24 12.21 15.25 Net asset value per Redeemable Unit, beginning of period 1,295.88 1,272.97 1,326.60 1,377.78 1,336.57 1,382.45 Net asset value per Redeemable Unit, end of period $ 1,385.88 $ 1,365.65 $ 1,425.86 $ 1,386.02 $ 1,348.78 $ 1,397.70 Nine Months Ended September 30, 2019 2018 Per Redeemable Unit Performance (for a unit outstanding Class A Class D Class Z Class A Class D Class Z Net realized and unrealized gains (losses) $ 102.32 $ 99.99 $ 104.31 $ 26.84 $ 26.06 $ 27.36 Net investment loss (29.48) (16.11) (9.21) (35.11) (21.42) (14.73) Increase (decrease) for the period 72.84 83.88 95.10 (8.27) 4.64 12.63 Net asset value per Redeemable Unit, beginning of period 1,313.04 1,281.77 1,330.76 1,394.29 1,344.14 1,385.07 Net asset value per Redeemable Unit, end of period $ 1,385.88 $ 1,365.65 $ 1,425.86 $ 1,386.02 $ 1,348.78 $ 1,397.70 Three Months Ended September 30, 2019 2018 Class A Class D Class Z Class A Class D Class Z Ratios to Average Limited Partners’ Capital:** Net investment loss*** (3.3) % (2.3) % (1.4) % (3.1) % (1.9) % (1.1) % Operating expenses 5.1 % 4.6 % 3.6 % 5.0 % 3.7 % 2.9 % Incentive fees - % - % - % - % - % - % Total expenses 5.1 % 4.6 % 3.6 % 5.0 % 3.7 % 2.9 % Total return: Total return before incentive fees 6.9 % 7.3 % 7.5 % 0.6 % 0.9 % 1.1 % Incentive fees - % - % - % - % - % - % Total return after incentive fees 6.9 % 7.3 % 7.5 % 0.6 % 0.9 % 1.1 % Nine Months Ended September 30, 2019 2018 Class A Class D Class Z Class A Class D Class Z Ratios to Average Limited Partners’ Capital:** Net investment loss*** (3.0) % (1.8) % (0.9) % (3.4) % (2.1) % (1.4) % Operating expenses 5.1 % 4.0 % 3.2 % 5.0 % 3.7 % 2.9 % Incentive fees - % - % - % - % - % - % Total expenses 5.1 % 4.0 % 3.2 % 5.0 % 3.7 % 2.9 % Total return: Total return before incentive fees 5.5 % 6.5 % 7.1 % (0.6) % 0.3 % 0.9 % Incentive fees - % - % - % - % - % - % Total return after incentive fees 5.5 % 6.5 % 7.1 % (0.6) % 0.3 % 0.9 % * Net investment loss per Redeemable Unit is calculated by dividing the interest income less total expenses by the average number of Redeemable Units outstanding during the period. The net realized and unrealized gains (losses) per Redeemable Unit is a balancing amount necessary to reconcile the change in net asset value per Redeemable Unit with the other per unit information. ** Annualized (except for incentive fees). *** Interest income allocated from the Master less total expenses.
CMF Winton Master L.P. [Member]
Financial Highlights	Financial Highlights of the Master: Three Months Ended Nine Months Ended 2019 2018 2019 2018 Per Redeemable Unit Performance (for a unit outstanding throughout the period):* Net realized and unrealized gains (losses) $ 319.27 $ 58.80 $ 322.81 $ 82.62 Net investment income (loss) 17.57 17.46 58.78 43.73 Increase (decrease) for the period 336.84 76.26 381.59 126.35 Distribution of interest income to feeder funds (18.79) (17.98) (61.44) (44.14) Net asset value per Redeemable Unit, beginning of period 4,086.32 4,222.90 4,084.22 4,198.97 Net asset value per Redeemable Unit, end of period $ 4,404.37 $ 4,281.18 $ 4,404.37 $ 4,281.18 Three Months Ended Nine Months Ended 2019 2018 2019 2018 Ratios to Average Limited Partners’ Capital:** Net investment income (loss)*** 1.5 % 1.6 % 1.9 % 1.4 % Operating expenses 0.2 % 0.2 % 0.2 % 0.2 % Total return 8.2 % 1.8 % 9.3 % 3.0 % * Net investment income (loss) per Redeemable Unit is calculated by dividing the interest income less total expenses by the average number of Redeemable Units outstanding during the period. The net realized and unrealized gains (losses) per Redeemable Unit is a balancing amount necessary to reconcile the change in net asset value per Redeemable Unit with the other per unit information. ** Annualized. *** Interest income less total expenses.

Trading Activities (Tables)

Trading Activities (Tables) - CMF Winton Master L.P. [Member]	9 Months Ended
	Sep. 30, 2019
Summary of Valuation of Master's Investments	The following tables summarize the gross and net amounts recognized relating to assets and liabilities of the Master’s derivatives and their offsetting subject to master netting agreements or similar arrangements as of September 30, 2019 and December 31, 2018, respectively. September 30, 2019 Gross Amounts Recognized Gross Amounts Offset in the Statements of Financial Condition Amounts Presented in the Statements of Financial Condition Gross Amounts Not Offset in the Statements of Financial Condition Net Amount Financial Instruments Cash Collateral Received/ Pledged* Assets MS&Co. Futures $ 12,255,264 $ (9,168,907) $ 3,086,357 $ - $ - $ 3,086,357 Forwards 3,218,682 (1,208,004) 2,010,678 - - 2,010,678 15,473,946 (10,376,911) 5,097,035 - - 5,097,035 JPMorgan Forwards 1,007,462 (474,156) 533,306 - - 533,306 Total assets $ 16,481,408 $ (10,851,067) $ 5,630,341 $ - $ - $ 5,630,341 Liabilities MS&Co. Futures $ (9,168,907) $ 9,168,907 $ - $ - $ - $ - Forwards (1,208,004) 1,208,004 - - - - (10,376,911) 10,376,911 - - - - JPMorgan Forwards (474,156) 474,156 - - - - Total liabilities $ (10,851,067) $ 10,851,067 $ - $ - $ - $ - Net fair value $ 5,630,341 * December 31, 2018 Gross Amounts Recognized Gross Amounts Offset in the Statements of Financial Condition Amounts Presented in the Statements of Financial Condition Gross Amounts Not Offset in the Statements of Financial Condition Net Amount Financial Instruments Cash Collateral Received/ Pledged* Assets MS&Co. Futures $ 12,642,665 $ (12,642,665) $ - $ - $ - $ - Forwards 1,579,370 (1,579,370) - - - - 14,222,035 (14,222,035) - - - - JPMorgan Forwards 1,055,436 (813,774) 241,662 - - 241,662 Total assets $ 15,277,471 $ (15,035,809) $ 241,662 $ - $ - $ 241,662 Liabilities MS&Co. Futures $ (18,312,891) $ 12,642,665 $ (5,670,226) $ - $ 5,670,226 $ - Forwards (4,390,307) 1,579,370 (2,810,937) - 2,810,937 - (22,703,198) 14,222,035 (8,481,163) - 8,481,163 - JPMorgan Forwards (813,774) 813,774 - - - - Total liabilities $ (23,516,972) $ 15,035,809 $ (8,481,163) $ - $ 8,481,163 $ - Net fair value $ 241,662 * * In the event of default by the Master, MS&Co., the Master’s commodity futures broker and a counterparty to certain of the Master’s non-exchange-traded non-exchange-traded
Gross Fair Values of Master's Derivative Instruments of Futures and Forward Contracts as Separate Assets and Liabilities	The following tables indicate the gross fair values of the Master’s derivative instruments of futures and forward contracts as separate assets and liabilities as of September 30, 2019 and December 31, 2018, respectively. September 30, Assets Futures Contracts Currencies $ 2,592,192 Energy 2,351,615 Grains 67,071 Indices 1,393,447 Interest Rates U.S. 426,468 Interest Rates Non-U.S. 5,072,929 Livestock 16,538 Metals 52,802 Softs 282,202 Total unrealized appreciation on open futures contracts 12,255,264 Liabilities Futures Contracts Currencies (167,081) Energy (322,912) Grains (743,339) Indices (568,651) Interest Rates U.S. (2,009,648) Interest Rates Non-U.S. (1,729,843) Livestock (489,338) Metals (2,240,880) Softs (897,215) Total unrealized depreciation on open futures contracts (9,168,907) Net unrealized appreciation on open futures contracts $ 3,086,357 * Assets Forward Contracts Currencies $ 1,007,462 Metals 3,218,682 Total unrealized appreciation on open forward contracts 4,226,144 Liabilities Forward Contracts Currencies (474,156) Metals (1,208,004) Total unrealized depreciation on open forward contracts (1,682,160) Net unrealized appreciation on open forward contracts $ 2,543,984 ** * This amount is in “Net unrealized appreciation on open futures contracts” in the Master’s Statements of Financial Condition. ** This amount is in “Net unrealized appreciation on open forward contracts” in the Master’s Statements of Financial Condition. December 31, 2018 Assets Futures Contracts Currencies $ 1,121,770 Energy 3,883,716 Grains 763,198 Indices 755,310 Interest Rates U.S. 517,969 Interest Rates Non-U.S. 3,526,064 Livestock 198,893 Metals 171,670 Softs 1,704,075 Total unrealized appreciation on open futures contracts 12,642,665 Liabilities Futures Contracts Currencies (3,118,338) Energy (7,727,803) Grains (62,865) Indices (1,562,651) Interest Rates U.S. (424,414) Interest Rates Non-U.S. (963,044) Livestock (68,985) Metals (2,987,463) Softs (1,397,328) Total unrealized depreciation on open futures contracts (18,312,891) Net unrealized depreciation on open futures contracts $ (5,670,226) * Assets Forward Contracts Currencies $ 1,063,380 Metals 1,571,426 Total unrealized appreciation on open forward contracts 2,634,806 Liabilities Forward Contracts Currencies (813,774) Metals (4,390,307) Total unrealized depreciation on open forward contracts (5,204,081) Net unrealized depreciation on open forward contracts $ (2,569,275) ** * This amount is in “Net unrealized depreciation on open futures contracts” in the Master’s Statements of Financial Condition. ** This amount is in “Net unrealized depreciation on open forward contracts” in the Master’s Statements of Financial Condition.
Master's Trading Gains and Losses, by Market Sector, on Derivative Instruments	The following table indicates the Master’s total trading gains and losses, by market sector, on derivative instruments for the three and nine months ended September 30, 2019 and 2018, respectively. Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Sector Currencies $ 6,885,809 $ (78,498) $ 7,923,279 $ (9,856,743) Energy (1,287,178) (2,007,617) (14,325,701) 8,672,759 Grains 604,917 396,833 897,485 112,229 Indices 869,913 1,256,270 6,298,338 (295,367) Interest Rates U.S. 4,765,039 (586,953) 7,637,256 (862,483) Interest Rates Non-U.S. 7,017,465 (2,624,227) 18,069,062 1,257,197 Livestock (617,023) 47,145 (4,049,838) (986,778) Metals (775,280) 5,664,661 (4,700,905) 5,658,715 Softs 1,074,821 3,026,044 1,208,552 5,003,738 Total $ 18,538,483 *** $ 5,093,658 *** $ 18,957,528 *** $ 8,703,267 *** *** This amount is in “Total trading results” in the Master’s Statements of Income and Expenses and Changes in Partners’ Capital.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2019
CMF Winton Master L.P. [Member]
Master's Fair Value Measurements	September 30, 2019 Total Level 1 Level 2 Level 3 Assets Futures $ 12,255,264 $ 12,255,264 $ - $ - Forwards 4,226,144 - 4,226,144 - Total assets $ 16,481,408 $ 12,255,264 $ 4,226,144 $ - Liabilities Futures $ 9,168,907 $ 9,168,907 $ - $ - Forwards 1,682,160 - 1,682,160 - Total liabilities $ 10,851,067 $ 9,168,907 $ 1,682,160 $ - December 31, 2018 Total Level 1 Level 2 Level 3 Assets Futures $ 12,642,665 $ 12,642,665 $ - $ - Forwards 2,634,806 - 2,634,806 - Total assets $ 15,277,471 $ 12,642,665 $ 2,634,806 $ - Liabilities Futures $ 18,312,891 $ 18,312,891 $ - $ - Forwards 5,204,081 - 5,204,081 - Total liabilities $ 23,516,972 $ 18,312,891 $ 5,204,081 $ -

Organization - Additional Infor

Organization - Additional Information (Detail)	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Maximum amount of partnership assets allocated to trading advisor	1.5 times
CMF Winton Master L.P. [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Percentage of Partnership owned	64.00%	53.90%
Class D [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Monthly ongoing selling agent fee	0.0625%
Ongoing selling agent fee	0.75%
Class A [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Monthly ongoing selling agent fee	0.1667%
Ongoing selling agent fee	2.00%

Basis of Presentation and Sum_4

Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)	9 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Cash denominated in foreign currencies	$ 5,421,575	$ 2,271,393
Cost of foreign currencies	5,463,508	2,273,441
Cash held for margin requirements	32,134,026	$ 40,002,084
Uncertain tax position	$ 0
Open tax year	2015 2016 2017 2018

Basis of Presentation and Sum_5

Basis of Presentation and Summary of Significant Accounting Policies - Statements of Financial Condition (Detail) - USD ($)	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2017
Equity in trading accounts:
Restricted cash	$ 32,134,026		$ 40,002,084
Total assets	145,067,910		184,881,389
Accrued expenses:
Professional fees	221,766		264,945
Total liabilities	1,932,284		1,763,430
Partners' Capital:
Total partners' capital (net asset value)	143,135,626	$ 161,280,765	183,117,959	$ 197,583,257	$ 199,054,737	$ 207,686,502
Total liabilities and partners' capital	145,067,910		184,881,389
CMF Winton Master L.P. [Member]
Equity in trading accounts:
Unrestricted cash	187,349,751		312,715,105
Restricted cash	32,134,026		40,002,084
Net unrealized appreciation on open contracts	5,630,341		241,662
Total equity in trading accounts	225,114,118		352,717,189
Subscription receivable			261,448
Total assets	225,114,118		352,978,637
Liabilities:
Net unrealized depreciation on open contracts			8,481,163
Accrued expenses:
Professional fees	58,494		54,808
Redemptions payable	1,971,751		5,484,714
Total liabilities	2,030,245		13,779,023
Partners' Capital:
Limited Partners, 50,650.5653 and 83,051.1742 Redeemable Units outstanding at September 30, 2019 and December 31, 2018, respectively	223,083,873		339,199,614
Total partners' capital (net asset value)	223,083,873	$ 272,550,870	339,199,614	$ 372,434,531	$ 367,211,246	$ 397,648,307
Total liabilities and partners' capital	$ 225,114,118		$ 352,978,637
Net asset value per Redeemable Unit	$ 4,404.37	$ 4,086.32	$ 4,084.22	$ 4,281.18	$ 4,222.90	$ 4,198.97
Future Contracts [Member] | CMF Winton Master L.P. [Member]
Equity in trading accounts:
Net unrealized appreciation on open contracts	$ 3,086,357
Liabilities:
Net unrealized depreciation on open contracts			$ 5,670,226
Forward Contracts [Member] | CMF Winton Master L.P. [Member]
Equity in trading accounts:
Net unrealized appreciation on open contracts	$ 2,543,984
Liabilities:
Net unrealized depreciation on open contracts			$ 2,569,275

Basis of Presentation and Sum_6

Basis of Presentation and Summary of Significant Accounting Policies - Statements of Financial Condition (Parenthetical) (Detail) - CMF Winton Master L.P. [Member] - shares	Sep. 30, 2019	Dec. 31, 2018
Condensed Financial Statements, Captions [Line Items]
General Partner, Unit outstanding	0	0
Limited Partners, Units outstanding	50,650.5653	83,051.1742

Basis of Presentation and Sum_7

Basis of Presentation and Summary of Significant Accounting Policies - Condensed Schedule of Investments (Detail)		Sep. 30, 2019USD ($)Derivative	Dec. 31, 2018USD ($)Derivative
Schedule of Investments [Line Items]
Investment in Master, at fair value	[1]	$ 143,021,980	$ 183,004,312
CMF Winton Master L.P. [Member] | Forward Contracts [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts		$ 2,543,984	$ (2,569,275)
Percentage of Partners' Capital		1.14%	(0.76%)
Total unrealized appreciation on open contracts		$ 4,226,144	$ 2,634,806
Total unrealized depreciation on open contracts		(1,682,160)	(5,204,081)
CMF Winton Master L.P. [Member] | Forward Contracts [Member] | Currencies [Member]
Schedule of Investments [Line Items]
Notional		103,069,545	77,973,985
Total unrealized appreciation on open contracts		1,007,462	1,063,380
Notional		55,439,706	59,643,530
Total unrealized depreciation on open contracts		(474,156)	(813,774)
CMF Winton Master L.P. [Member] | Forward Contracts [Member] | Metals [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		3,218,682	1,571,426
Total unrealized depreciation on open contracts		$ (1,208,004)	$ (4,390,307)
CMF Winton Master L.P. [Member] | Unrealized Depreciation [Member] | Forward Contracts [Member]
Schedule of Investments [Line Items]
Percentage of Partners' Capital		(0.75%)	(1.53%)
CMF Winton Master L.P. [Member] | Unrealized Depreciation [Member] | Forward Contracts [Member] | Currencies [Member]
Schedule of Investments [Line Items]
Percentage of Partners' Capital		(0.21%)	(0.24%)
CMF Winton Master L.P. [Member] | Unrealized Depreciation [Member] | Forward Contracts [Member] | Metals [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		564	875
Percentage of Partners' Capital		(0.54%)	(1.29%)
CMF Winton Master L.P. [Member] | Unrealized Appreciation [Member] | Forward Contracts [Member]
Schedule of Investments [Line Items]
Percentage of Partners' Capital		1.89%	0.77%
CMF Winton Master L.P. [Member] | Unrealized Appreciation [Member] | Forward Contracts [Member] | Currencies [Member]
Schedule of Investments [Line Items]
Percentage of Partners' Capital		0.45%	0.31%
CMF Winton Master L.P. [Member] | Unrealized Appreciation [Member] | Forward Contracts [Member] | Metals [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		771	754
Percentage of Partners' Capital		1.44%	0.46%
CMF Winton Master L.P. [Member] | Futures Contracts [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts		$ 3,086,357	$ (5,670,226)
Percentage of Partners' Capital		1.38%	(1.67%)
Total unrealized appreciation on open contracts		$ 12,255,264	$ 12,642,665
Total unrealized depreciation on open contracts		(9,168,907)	(18,312,891)
CMF Winton Master L.P. [Member] | Futures Contracts [Member] | Currencies [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		2,592,192	1,121,770
Total unrealized depreciation on open contracts		(167,081)	(3,118,338)
CMF Winton Master L.P. [Member] | Futures Contracts [Member] | Energy [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		2,351,615	3,883,716
Total unrealized depreciation on open contracts		(322,912)	(7,727,803)
CMF Winton Master L.P. [Member] | Futures Contracts [Member] | Grains [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		67,071	763,198
Total unrealized depreciation on open contracts		(743,339)	(62,865)
CMF Winton Master L.P. [Member] | Futures Contracts [Member] | Indices [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		1,393,447	755,310
Total unrealized depreciation on open contracts		(568,651)	(1,562,651)
CMF Winton Master L.P. [Member] | Futures Contracts [Member] | Interest Rates U.S. [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		426,468	517,969
Total unrealized depreciation on open contracts		(2,009,648)	(424,414)
CMF Winton Master L.P. [Member] | Futures Contracts [Member] | Interest Rates Non-U.S. [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		5,072,929	3,526,064
Total unrealized depreciation on open contracts		(1,729,843)	(963,044)
CMF Winton Master L.P. [Member] | Futures Contracts [Member] | Livestock [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		16,538	198,893
Total unrealized depreciation on open contracts		(489,338)	(68,985)
CMF Winton Master L.P. [Member] | Futures Contracts [Member] | Metals [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		52,802	171,670
Total unrealized depreciation on open contracts		(2,240,880)	(2,987,463)
CMF Winton Master L.P. [Member] | Futures Contracts [Member] | Softs [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		282,202	1,704,075
Total unrealized depreciation on open contracts		(897,215)	(1,397,328)
CMF Winton Master L.P. [Member] | Futures Contracts [Member] | Contracts Purchased [Member]
Schedule of Investments [Line Items]
Investment in Master, at fair value		$ (1,206,597)	$ (5,125,334)
Percentage of Partners' Capital		(0.54%)	(1.51%)
CMF Winton Master L.P. [Member] | Futures Contracts [Member] | Contracts Purchased [Member] | Currencies [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		802	665
Investment in Master, at fair value		$ (161,955)	$ 498,240
Percentage of Partners' Capital		(0.07%)	0.15%
CMF Winton Master L.P. [Member] | Futures Contracts [Member] | Contracts Purchased [Member] | Energy [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		76	807
Investment in Master, at fair value		$ (223,240)	$ (7,683,693)
Percentage of Partners' Capital		(0.10%)	(2.27%)
CMF Winton Master L.P. [Member] | Futures Contracts [Member] | Contracts Purchased [Member] | Grains [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		43	23
Investment in Master, at fair value		$ 23,603	$ 1,389
Percentage of Partners' Capital		0.01%	0.00%	[2]
CMF Winton Master L.P. [Member] | Futures Contracts [Member] | Contracts Purchased [Member] | Indices [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		1,100	598
Investment in Master, at fair value		$ (169,960)	$ (1,528,397)
Percentage of Partners' Capital		(0.08%)	(0.45%)
CMF Winton Master L.P. [Member] | Futures Contracts [Member] | Contracts Purchased [Member] | Interest Rates U.S. [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		824	274
Investment in Master, at fair value		$ (1,896,899)	$ 511,781
Percentage of Partners' Capital		(0.85%)	0.15%
CMF Winton Master L.P. [Member] | Futures Contracts [Member] | Contracts Purchased [Member] | Interest Rates Non-U.S. [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		10,101	6,276
Investment in Master, at fair value		$ 3,343,086	$ 3,509,049
Percentage of Partners' Capital		1.50%	1.04%
CMF Winton Master L.P. [Member] | Futures Contracts [Member] | Contracts Purchased [Member] | Livestock [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		9	24
Investment in Master, at fair value		$ 16,410	$ 10,030
Percentage of Partners' Capital		0.01%	0.00%	[2]
CMF Winton Master L.P. [Member] | Futures Contracts [Member] | Contracts Purchased [Member] | Metals [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		451	110
Investment in Master, at fair value		$ (2,164,140)	$ (167,968)
Percentage of Partners' Capital		(0.97%)	(0.05%)
CMF Winton Master L.P. [Member] | Futures Contracts [Member] | Contracts Purchased [Member] | Softs [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		86	78
Investment in Master, at fair value		$ 26,498	$ (275,765)
Percentage of Partners' Capital		0.01%	(0.08%)
CMF Winton Master L.P. [Member] | Futures Contracts [Member] | Contracts Sold [Member]
Schedule of Investments [Line Items]
Investment in Master, at fair value		$ 4,292,954	$ (544,892)
Percentage of Partners' Capital		1.92%	(0.16%)
CMF Winton Master L.P. [Member] | Futures Contracts [Member] | Contracts Sold [Member] | Currencies [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		1,841	2,903
Investment in Master, at fair value		$ 2,587,066	$ (2,494,808)
Percentage of Partners' Capital		1.16%	(0.74%)
CMF Winton Master L.P. [Member] | Futures Contracts [Member] | Contracts Sold [Member] | Energy [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		1,002	833
Investment in Master, at fair value		$ 2,251,943	$ 3,839,606
Percentage of Partners' Capital		1.01%	1.13%
CMF Winton Master L.P. [Member] | Futures Contracts [Member] | Contracts Sold [Member] | Grains [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		1,162	1,819
Investment in Master, at fair value		$ (699,871)	$ 698,944
Percentage of Partners' Capital		(0.31%)	0.21%
CMF Winton Master L.P. [Member] | Futures Contracts [Member] | Contracts Sold [Member] | Indices [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		378	459
Investment in Master, at fair value		$ 994,756	$ 721,056
Percentage of Partners' Capital		0.45%	0.21%
CMF Winton Master L.P. [Member] | Futures Contracts [Member] | Contracts Sold [Member] | Interest Rates U.S. [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		485	356
Investment in Master, at fair value		$ 313,719	$ (418,226)
Percentage of Partners' Capital		0.14%	(0.12%)
CMF Winton Master L.P. [Member] | Futures Contracts [Member] | Contracts Sold [Member] | Interest Rates Non-U.S. [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative			612
Investment in Master, at fair value			$ (946,029)
Percentage of Partners' Capital			(0.28%)
CMF Winton Master L.P. [Member] | Futures Contracts [Member] | Contracts Sold [Member] | Livestock [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		173	182
Investment in Master, at fair value		$ (489,210)	$ 119,878
Percentage of Partners' Capital		(0.22%)	0.04%
CMF Winton Master L.P. [Member] | Futures Contracts [Member] | Contracts Sold [Member] | Metals [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		86	602
Investment in Master, at fair value		$ (23,938)	$ (2,647,825)
Percentage of Partners' Capital		(0.01%)	(0.78%)
CMF Winton Master L.P. [Member] | Futures Contracts [Member] | Contracts Sold [Member] | Softs [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		1,328	1,888
Investment in Master, at fair value		$ (641,511)	$ 582,512
Percentage of Partners' Capital		(0.30%)	0.17%
[1]	Defined in Note 1.
[2]	Due to rounding.

Basis of Presentation and Sum_8

Basis of Presentation and Summary of Significant Accounting Policies - Statements of Income and Expenses and Changes in Partners' Capital (Detail) - USD ($)		3 Months Ended		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018	Dec. 31, 2017
Investment Income:
Interest income		$ 730,041	$ 905,165	$ 2,601,247	$ 2,339,738
Expenses:
Professional fees		115,563	137,828	360,756	416,492
Total expenses		1,955,475	2,381,157	6,102,686	7,202,375
Net investment income (loss)		(1,225,434)	(1,475,992)	(3,501,439)	(4,862,637)
Net gains (losses) on trading of commodity interests:
Net realized gains (losses) on closed contracts		13,342,893	5,500,874	5,345,539	10,006,410
Net change in unrealized gains (losses) on open contracts		(333,604)	(2,741,624)	7,914,611	(6,323,960)
Total trading results		13,009,289	2,759,250	13,260,150	3,682,450
Net income (loss)		11,783,855	1,283,258	9,758,711	(1,180,187)
Balance, value		161,280,765	199,054,737	183,117,959	207,686,502
Balance, value		143,135,626	197,583,257	143,135,626	197,583,257
CMF Winton Master L.P. [Member]
Investment Income:
Interest income		1,090,278	1,679,291	4,435,924	4,321,432
Expenses:
Clearing fees		122,086	139,512	331,631	379,163
Professional fees		15,750	17,000	47,250	51,195
Total expenses		137,836	156,512	378,881	430,358
Net investment income (loss)		952,442	1,522,779	4,057,043	3,891,074
Net gains (losses) on trading of commodity interests:
Net realized gains (losses) on closed contracts		20,040,311	10,188,516	5,127,571	19,093,083
Net change in unrealized gains (losses) on open contracts		(1,501,828)	(5,094,858)	13,829,957	(10,389,816)
Total trading results		18,538,483	5,093,658	18,957,528	8,703,267
Net income (loss)		19,490,925	6,616,437	23,014,571	12,594,341
Subscriptions - Limited Partners		3,557,318	6,677,129	4,564,935	16,119,957
Redemptions - Limited Partners		(71,496,294)	(6,502,039)	(139,454,527)	(50,000,530)
Distribution of interest income to feeder funds		(1,018,946)	(1,568,242)	(4,240,720)	(3,927,544)
Net increase (decrease) in Partners' Capital		(49,466,997)	5,223,285	(116,115,741)	(25,213,776)
Balance, value		272,550,870	367,211,246	339,199,614	397,648,307
Balance, value		$ 223,083,873	$ 372,434,531	$ 223,083,873	$ 372,434,531
Net asset value per Redeemable Unit (50,650.5653 and 86,993.5300 Redeemable Units outstanding at September 30, 2019 and 2018, respectively)		$ 4,404.37	$ 4,281.18	$ 4,404.37	$ 4,281.18	$ 4,086.32	$ 4,084.22	$ 4,222.90	$ 4,198.97
Net income (loss) per Redeemable Unit	[1]	$ 336.84	$ 76.26	$ 381.59	$ 126.35
Weighted average Redeemable Units outstanding		54,220.5443	87,200.3814	69,017.9863	88,973.5467
[1]	Represents the change in net asset value per Redeemable Unit during the period before distribution of interest income to feeder funds.

Basis of Presentation and Sum_9

Basis of Presentation and Summary of Significant Accounting Policies - Statements of Income and Expenses and Changes in Partners' Capital (Parenthetical) (Detail) - shares	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2017
Condensed Financial Statements, Captions [Line Items]
Net asset value per redeemable unit outstanding	103,309.9025	124,718.0605	139,852.0965	143,012.7885	145,001.8595	149,619.0995
CMF Winton Master L.P. [Member]
Condensed Financial Statements, Captions [Line Items]
Net asset value per redeemable unit outstanding	50,650.5653			86,993.5300

Financial Highlights - Financia

Financial Highlights - Financial Highlights for Limited Partner Classes (Detail) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
CMF Winton Master L.P. [Member]
Per Redeemable Unit Performance (for a unit outstanding throughout the period):
Net realized and unrealized gains (losses)	$ 319.27	$ 58.80	$ 322.81	$ 82.62
Net investment income (loss)	17.57	17.46	58.78	43.73
Increase (decrease) for the period	336.84	76.26	381.59	126.35
Distribution of interest income to feeder funds	(18.79)	(17.98)	(61.44)	(44.14)
Net asset value per Redeemable Unit, beginning of period	4,086.32	4,222.90	4,084.22	4,198.97
Net asset value per Redeemable Unit, end of period	$ 4,404.37	$ 4,281.18	$ 4,404.37	$ 4,281.18
Ratios to Average Limited Partners' Capital:
Net investment income (loss)	1.50%	1.60%	1.90%	1.40%
Operating expenses	0.20%	0.20%	0.20%	0.20%
Total return	8.20%	1.80%	9.30%	3.00%
Class A [Member]
Per Redeemable Unit Performance (for a unit outstanding throughout the period):
Net asset value per Redeemable Unit, beginning of period			$ 1,313.04
Net asset value per Redeemable Unit, end of period	$ 1,385.88		1,385.88
Class A [Member] | Limited Partners [Member]
Per Redeemable Unit Performance (for a unit outstanding throughout the period):
Net realized and unrealized gains (losses)	101.25	$ 19.14	102.32	$ 26.84
Net investment income (loss)	(11.25)	(10.90)	(29.48)	(35.11)
Increase (decrease) for the period	90	8.24	72.84	(8.27)
Net asset value per Redeemable Unit, beginning of period	1,295.88	1,377.78	1,313.04	1,394.29
Net asset value per Redeemable Unit, end of period	$ 1,385.88	$ 1,386.02	$ 1,385.88	$ 1,386.02
Ratios to Average Limited Partners' Capital:
Net investment income (loss)	(3.30%)	(3.10%)	(3.00%)	(3.40%)
Operating expenses	5.10%	5.00%	5.10%	5.00%
Incentive fees	0.00%	0.00%	0.00%	0.00%
Total expenses	5.10%	5.00%	5.10%	5.00%
Total return:
Total return before incentive fees	6.90%	0.60%	5.50%	(0.60%)
Incentive fees	0.00%	0.00%	0.00%	0.00%
Total return after incentive fees	6.90%	0.60%	5.50%	(0.60%)
Class D [Member]
Per Redeemable Unit Performance (for a unit outstanding throughout the period):
Net asset value per Redeemable Unit, beginning of period			$ 1,281.77
Net asset value per Redeemable Unit, end of period	$ 1,365.65		1,365.65
Class D [Member] | Limited Partners [Member]
Per Redeemable Unit Performance (for a unit outstanding throughout the period):
Net realized and unrealized gains (losses)	99.23	$ 18.58	99.99	$ 26.06
Net investment income (loss)	(6.55)	(6.37)	(16.11)	(21.42)
Increase (decrease) for the period	92.68	12.21	83.88	4.64
Net asset value per Redeemable Unit, beginning of period	1,272.97	1,336.57	1,281.77	1,344.14
Net asset value per Redeemable Unit, end of period	$ 1,365.65	$ 1,348.78	$ 1,365.65	$ 1,348.78
Ratios to Average Limited Partners' Capital:
Net investment income (loss)	(2.30%)	(1.90%)	(1.80%)	(2.10%)
Operating expenses	4.60%	3.70%	4.00%	3.70%
Incentive fees	0.00%	0.00%	0.00%	0.00%
Total expenses	4.60%	3.70%	4.00%	3.70%
Total return:
Total return before incentive fees	7.30%	0.90%	6.50%	0.30%
Incentive fees	0.00%	0.00%	0.00%	0.00%
Total return after incentive fees	7.30%	0.90%	6.50%	0.30%
Class Z [Member]
Per Redeemable Unit Performance (for a unit outstanding throughout the period):
Net asset value per Redeemable Unit, beginning of period			$ 1,330.76
Net asset value per Redeemable Unit, end of period	$ 1,425.86		1,425.86
Class Z [Member] | Limited Partners [Member]
Per Redeemable Unit Performance (for a unit outstanding throughout the period):
Net realized and unrealized gains (losses)	103.51	$ 19.22	104.31	$ 27.36
Net investment income (loss)	(4.25)	(3.97)	(9.21)	(14.73)
Increase (decrease) for the period	99.26	15.25	95.10	12.63
Net asset value per Redeemable Unit, beginning of period	1,326.60	1,382.45	1,330.76	1,385.07
Net asset value per Redeemable Unit, end of period	$ 1,425.86	$ 1,397.70	$ 1,425.86	$ 1,397.70
Ratios to Average Limited Partners' Capital:
Net investment income (loss)	(1.40%)	(1.10%)	(0.90%)	(1.40%)
Operating expenses	3.60%	2.90%	3.20%	2.90%
Incentive fees	0.00%	0.00%	0.00%	0.00%
Total expenses	3.60%	2.90%	3.20%	2.90%
Total return:
Total return before incentive fees	7.50%	1.10%	7.10%	0.90%
Incentive fees	0.00%	0.00%	0.00%	0.00%
Total return after incentive fees	7.50%	1.10%	7.10%	0.90%

Trading Activities - Additional

Trading Activities - Additional Information (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2019USD ($)Contract	Sep. 30, 2018USD ($)Contract	Sep. 30, 2019USD ($)Contract	Sep. 30, 2018USD ($)Contract
Trading Activity, Gains and Losses, Net [Line Items]
Monthly average number of futures contracts traded	19,348	20,643	17,642	19,094
Monthly average number of metals forward contracts traded	1,474	1,514	1,636	1,756
Forward Contracts [Member] | Currencies [Member] | Weighted Average [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Average notional values of currency forward contracts | $	$ 206,938,261	$ 211,292,847	$ 220,003,606	$ 271,160,477

Trading Activities - Summary of

Trading Activities - Summary of Valuation of Master's Investments (Detail) - CMF Winton Master L.P. [Member] - USD ($)	Sep. 30, 2019	Dec. 31, 2018
Derivative [Line Items]
Gross Amounts Recognized, Assets	$ 16,481,408	$ 15,277,471
Gross Amounts Offset in the Statements of Financial Condition, Assets	(10,851,067)	(15,035,809)
Amounts Presented in the Statements of Financial Condition, Assets	5,630,341	241,662
Net Amount, Assets	5,630,341	241,662
Gross Amounts Recognized, Liabilities	(10,851,067)	(23,516,972)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	10,851,067	15,035,809
Amounts Presented in the Statements of Financial Condition, Liabilities		(8,481,163)
Cash Collateral Received/Pledged, Liabilities		8,481,163
Net fair value	5,630,341	241,662
MS&Co. [Member]
Derivative [Line Items]
Gross Amounts Recognized, Assets	15,473,946	14,222,035
Gross Amounts Offset in the Statements of Financial Condition, Assets	(10,376,911)	(14,222,035)
Amounts Presented in the Statements of Financial Condition, Assets	5,097,035
Net Amount, Assets	5,097,035
Gross Amounts Recognized, Liabilities	(10,376,911)	(22,703,198)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	10,376,911	14,222,035
Amounts Presented in the Statements of Financial Condition, Liabilities		(8,481,163)
Cash Collateral Received/Pledged, Liabilities		8,481,163
Futures Contracts [Member]
Derivative [Line Items]
Amounts Presented in the Statements of Financial Condition, Assets	3,086,357
Amounts Presented in the Statements of Financial Condition, Liabilities		(5,670,226)
Futures Contracts [Member] | MS&Co. [Member]
Derivative [Line Items]
Gross Amounts Recognized, Assets	12,255,264	12,642,665
Gross Amounts Offset in the Statements of Financial Condition, Assets	(9,168,907)	(12,642,665)
Amounts Presented in the Statements of Financial Condition, Assets	3,086,357
Net Amount, Assets	3,086,357
Gross Amounts Recognized, Liabilities	(9,168,907)	(18,312,891)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	9,168,907	12,642,665
Amounts Presented in the Statements of Financial Condition, Liabilities		(5,670,226)
Cash Collateral Received/Pledged, Liabilities		5,670,226
Forward Contracts [Member]
Derivative [Line Items]
Amounts Presented in the Statements of Financial Condition, Assets	2,543,984
Amounts Presented in the Statements of Financial Condition, Liabilities		(2,569,275)
Forward Contracts [Member] | MS&Co. [Member]
Derivative [Line Items]
Gross Amounts Recognized, Assets	3,218,682	1,579,370
Gross Amounts Offset in the Statements of Financial Condition, Assets	(1,208,004)	(1,579,370)
Amounts Presented in the Statements of Financial Condition, Assets	2,010,678
Net Amount, Assets	2,010,678
Gross Amounts Recognized, Liabilities	(1,208,004)	(4,390,307)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	1,208,004	1,579,370
Amounts Presented in the Statements of Financial Condition, Liabilities		(2,810,937)
Cash Collateral Received/Pledged, Liabilities		2,810,937
Forward Contracts [Member] | JPMorgan [Member]
Derivative [Line Items]
Gross Amounts Recognized, Assets	1,007,462	1,055,436
Gross Amounts Offset in the Statements of Financial Condition, Assets	(474,156)	(813,774)
Amounts Presented in the Statements of Financial Condition, Assets	533,306	241,662
Net Amount, Assets	533,306	241,662
Gross Amounts Recognized, Liabilities	(474,156)	(813,774)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	$ 474,156	$ 813,774

Trading Activities - Gross Fair

Trading Activities - Gross Fair Values of Master's Derivative Instruments of Futures and Forward Contracts as Separate Assets and Liabilities (Detail) - CMF Winton Master L.P. [Member] - USD ($)	Sep. 30, 2019	Dec. 31, 2018
Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	$ 12,255,264	$ 12,642,665
Total unrealized depreciation on open contracts	(9,168,907)	(18,312,891)
Net unrealized appreciation (depreciation) on open contracts	3,086,357	(5,670,226)
Futures Contracts [Member] | Currencies [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	2,592,192	1,121,770
Total unrealized depreciation on open contracts	(167,081)	(3,118,338)
Futures Contracts [Member] | Energy [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	2,351,615	3,883,716
Total unrealized depreciation on open contracts	(322,912)	(7,727,803)
Futures Contracts [Member] | Grains [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	67,071	763,198
Total unrealized depreciation on open contracts	(743,339)	(62,865)
Futures Contracts [Member] | Indices [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	1,393,447	755,310
Total unrealized depreciation on open contracts	(568,651)	(1,562,651)
Futures Contracts [Member] | Interest Rates U.S. [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	426,468	517,969
Total unrealized depreciation on open contracts	(2,009,648)	(424,414)
Futures Contracts [Member] | Interest Rates Non-U.S. [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	5,072,929	3,526,064
Total unrealized depreciation on open contracts	(1,729,843)	(963,044)
Futures Contracts [Member] | Livestock [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	16,538	198,893
Total unrealized depreciation on open contracts	(489,338)	(68,985)
Futures Contracts [Member] | Metals [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	52,802	171,670
Total unrealized depreciation on open contracts	(2,240,880)	(2,987,463)
Futures Contracts [Member] | Softs [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	282,202	1,704,075
Total unrealized depreciation on open contracts	(897,215)	(1,397,328)
Forward Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	4,226,144	2,634,806
Total unrealized depreciation on open contracts	(1,682,160)	(5,204,081)
Net unrealized appreciation (depreciation) on open contracts	2,543,984	(2,569,275)
Forward Contracts [Member] | Currencies [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	1,007,462	1,063,380
Total unrealized depreciation on open contracts	(474,156)	(813,774)
Forward Contracts [Member] | Metals [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	3,218,682	1,571,426
Total unrealized depreciation on open contracts	$ (1,208,004)	$ (4,390,307)

Trading Activities - Master's T

Trading Activities - Master's Trading Gains and Losses, by Market Sector, on Derivative Instruments (Detail) - CMF Winton Master L.P. [Member] - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Derivative [Line Items]
Trading gains and losses	$ 18,538,483	$ 5,093,658	$ 18,957,528	$ 8,703,267
Currencies [Member]
Derivative [Line Items]
Trading gains and losses	6,885,809	(78,498)	7,923,279	(9,856,743)
Energy [Member]
Derivative [Line Items]
Trading gains and losses	(1,287,178)	(2,007,617)	(14,325,701)	8,672,759
Grains [Member]
Derivative [Line Items]
Trading gains and losses	604,917	396,833	897,485	112,229
Indices [Member]
Derivative [Line Items]
Trading gains and losses	869,913	1,256,270	6,298,338	(295,367)
Interest Rates U.S. [Member]
Derivative [Line Items]
Trading gains and losses	4,765,039	(586,953)	7,637,256	(862,483)
Interest Rates Non-U.S. [Member]
Derivative [Line Items]
Trading gains and losses	7,017,465	(2,624,227)	18,069,062	1,257,197
Livestock [Member]
Derivative [Line Items]
Trading gains and losses	(617,023)	47,145	(4,049,838)	(986,778)
Metals [Member]
Derivative [Line Items]
Trading gains and losses	(775,280)	5,664,661	(4,700,905)	5,658,715
Softs [Member]
Derivative [Line Items]
Trading gains and losses	$ 1,074,821	$ 3,026,044	$ 1,208,552	$ 5,003,738

Fair Value Measurements - Maste

Fair Value Measurements - Master's Fair Value Measurements (Detail) - USD ($)	Sep. 30, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	$ 16,481,408	$ 15,277,471
Derivative Liabilities	10,851,067	23,516,972
Futures Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	12,255,264	12,642,665
Derivative Liabilities	9,168,907	18,312,891
Forward Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	4,226,144	2,634,806
Derivative Liabilities	1,682,160	5,204,081
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	12,255,264	12,642,665
Derivative Liabilities	9,168,907	18,312,891
Level 1 [Member] | Futures Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	12,255,264	12,642,665
Derivative Liabilities	9,168,907	18,312,891
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	4,226,144	2,634,806
Derivative Liabilities	1,682,160	5,204,081
Level 2 [Member] | Forward Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	4,226,144	2,634,806
Derivative Liabilities	$ 1,682,160	$ 5,204,081

Financial Instrument Risks - Ad

Financial Instrument Risks - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2019
Financial instruments maturity period	1 year
Credit Concentration Risk [Member] | Master's Contracts [Member] | Over the Counter [Member] | Minimum [Member]
Concentration risk percentage	12.00%
Credit Concentration Risk [Member] | Master's Contracts [Member] | Over the Counter [Member] | Maximum [Member]
Concentration risk percentage	20.80%