Potomac Futures Fund (POTO) 10-Q 13 Nov 17 2017 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2017	Oct. 31, 2017
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q3
Trading Symbol	POTO
Entity Registrant Name	POTOMAC FUTURES FUND LP
Entity Central Index Key	1,043,565
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Class A [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		17,469.7248
Class Z [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		0

Statements of Financial Conditi

Statements of Financial Condition - USD ($)		Sep. 30, 2017	Dec. 31, 2016
Assets:
Investment in the Master, at fair value	[1]		$ 18,270,979
Equity in trading account:
Unrestricted cash		$ 17,688,018
Restricted cash		5,535,440
Net unrealized appreciation on open contracts		606,095
Total equity in trading account		23,829,553
Receivable from General Partner		43,831
Interest receivable		17,093
Cash at MS&Co.			126,256
Cash at bank		631	217
Total assets		23,891,108	18,397,452
Liabilities:
Net unrealized depreciation on open contracts		433,696
Accrued expenses:
Ongoing selling agent fees		38,589	30,313
Management fees		29,186	22,816
General Partner fees		19,457	15,210
Professional fees		69,912	114,608
Redemptions payable to Limited Partners		423,591	519,960
Total liabilities		1,014,431	702,907
Partners' Capital:
Total partners' capital (net asset value)		22,876,677	17,694,545
Total liabilities and partners' capital		23,891,108	18,397,452
Futures [Member]
Equity in trading account:
Net unrealized appreciation on open contracts		606,095
Forward Contracts [Member]
Liabilities:
Net unrealized depreciation on open contracts		433,696
Class A [Member]
Partners' Capital:
Limited Partners, Class A, 17,764.0848 and 12,965.3578 Redeemable Units outstanding at September 30, 2017 and December 31, 2016, respectively		22,617,241	17,486,619
Total partners' capital (net asset value)		$ 22,617,241	$ 17,486,619
Net asset value per Redeemable Unit		$ 1,273.20	$ 1,348.72
Class Z [Member]
Partners' Capital:
General Partner, Class Z, 296.6740 and 227.8640 Redeemable Units outstanding at September 30, 2017 and December 31, 2016, respectively		$ 259,436	$ 207,926
Total partners' capital (net asset value)		$ 259,436	$ 207,926
Net asset value per Redeemable Unit		$ 874.48	$ 912.50
[1]	Defined in Note 1.

Statements of Financial Condit3

Statements of Financial Condition (Parenthetical) - shares	Sep. 30, 2017	Dec. 31, 2016
Class A [Member]
Limited Partners Redeemable Units outstanding	17,764.0848	12,965.3578
Class Z [Member]
General Partner Redeemable Units outstanding	296.6740	227.8640

Condensed Schedule of Investmen

Condensed Schedule of Investments		Sep. 30, 2017USD ($)Derivative	Dec. 31, 2016USD ($)
Schedule of Investments [Line Items]
Investment, Fair Value	[1]		$ 18,270,979
Futures [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts		$ 606,095
Percentage of Partners' Capital		2.65%
Total unrealized appreciation on open contracts		$ 903,261
Total unrealized depreciation on open contracts		(297,166)
Futures [Member] | Contracts Purchased [Member]
Schedule of Investments [Line Items]
Investment, Fair Value		$ 363,228
Percentage of Partners' Capital		1.59%
Futures [Member] | Contracts Sold [Member]
Schedule of Investments [Line Items]
Investment, Fair Value		$ 242,867
Percentage of Partners' Capital		1.06%
Futures [Member] | Energy [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 63,934
Total unrealized depreciation on open contracts		$ (5,258)
Futures [Member] | Energy [Member] | Contracts Purchased [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		43
Investment, Fair Value		$ 50,996
Percentage of Partners' Capital		0.22%
Futures [Member] | Energy [Member] | Contracts Sold [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		37
Investment, Fair Value		$ 7,680
Percentage of Partners' Capital		0.03%
Futures [Member] | Grains [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 42,151
Total unrealized depreciation on open contracts		$ (27,162)
Futures [Member] | Grains [Member] | Contracts Purchased [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		20
Investment, Fair Value		$ (15,274)
Percentage of Partners' Capital		(0.07%)
Futures [Member] | Grains [Member] | Contracts Sold [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		73
Investment, Fair Value		$ 30,263
Percentage of Partners' Capital		0.13%
Futures [Member] | Indices [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 563,415
Total unrealized depreciation on open contracts		$ (29,320)
Futures [Member] | Indices [Member] | Contracts Purchased [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		404
Investment, Fair Value		$ 527,675
Percentage of Partners' Capital		2.31%
Futures [Member] | Indices [Member] | Contracts Sold [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		8
Investment, Fair Value		$ 6,420
Percentage of Partners' Capital		0.03%
Futures [Member] | Interest Rates U.S. [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 57,031
Total unrealized depreciation on open contracts		$ (8,594)
Futures [Member] | Interest Rates U.S. [Member] | Contracts Purchased [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		3
Investment, Fair Value		$ (8,516)
Percentage of Partners' Capital		(0.04%)
Futures [Member] | Interest Rates U.S. [Member] | Contracts Sold [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		114
Investment, Fair Value		$ 56,953
Percentage of Partners' Capital		0.25%
Futures [Member] | Interest Rates Non-U.S. [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 81,586
Total unrealized depreciation on open contracts		$ (197,745)
Futures [Member] | Interest Rates Non-U.S. [Member] | Contracts Purchased [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		196
Investment, Fair Value		$ (182,973)
Percentage of Partners' Capital		(0.80%)
Futures [Member] | Interest Rates Non-U.S. [Member] | Contracts Sold [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		391
Investment, Fair Value		$ 66,814
Percentage of Partners' Capital		0.29%
Futures [Member] | Livestock [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 5,390
Total unrealized depreciation on open contracts		$ (500)
Futures [Member] | Livestock [Member] | Contracts Purchased [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		9
Investment, Fair Value		$ 4,890
Percentage of Partners' Capital		0.02%
Futures [Member] | Metals [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 55,260
Total unrealized depreciation on open contracts		$ (11,710)
Futures [Member] | Metals [Member] | Contracts Purchased [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		9
Investment, Fair Value		$ (9,730)
Percentage of Partners' Capital		(0.04%)
Futures [Member] | Metals [Member] | Contracts Sold [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		16
Investment, Fair Value		$ 53,280
Percentage of Partners' Capital		0.23%
Futures [Member] | Softs [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 34,494
Total unrealized depreciation on open contracts		$ (16,877)
Futures [Member] | Softs [Member] | Contracts Purchased [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		2
Investment, Fair Value		$ (3,840)
Percentage of Partners' Capital		(0.01%)
Futures [Member] | Softs [Member] | Contracts Sold [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		80
Investment, Fair Value		$ 21,457
Percentage of Partners' Capital		0.10%
Forward Contracts [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts		$ (433,696)
Percentage of Partners' Capital		(1.90%)
Total unrealized appreciation on open contracts		$ 518,402
Total unrealized depreciation on open contracts		(952,098)
Forward Contracts [Member] | Metals [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		64,020
Total unrealized depreciation on open contracts		(171,832)
Forward Contracts [Member] | Currencies [Member]
Schedule of Investments [Line Items]
Notional		32,335,763
Total unrealized appreciation on open contracts		454,382
Notional		51,880,151
Total unrealized depreciation on open contracts		$ (780,266)
Forward Contracts [Member] | Unrealized Appreciation [Member]
Schedule of Investments [Line Items]
Percentage of Partners' Capital		2.26%
Forward Contracts [Member] | Unrealized Appreciation [Member] | Metals [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		68
Percentage of Partners' Capital		0.28%
Forward Contracts [Member] | Unrealized Appreciation [Member] | Currencies [Member]
Schedule of Investments [Line Items]
Percentage of Partners' Capital		1.98%
Unrealized Depreciation [Member] | Forward Contracts [Member]
Schedule of Investments [Line Items]
Percentage of Partners' Capital		(4.16%)
Unrealized Depreciation [Member] | Forward Contracts [Member] | Metals [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		30
Percentage of Partners' Capital		(0.75%)
Unrealized Depreciation [Member] | Forward Contracts [Member] | Currencies [Member]
Schedule of Investments [Line Items]
Percentage of Partners' Capital		(3.41%)
[1]	Defined in Note 1.

Statements of Income and Expens

Statements of Income and Expenses - USD ($)		3 Months Ended		9 Months Ended
		Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Investment Income:
Interest income		$ 44,542		$ 44,542
Interest income allocated from the Master		20,646	$ 12,128	92,905	$ 35,747
Total investment income		65,188	12,128	137,447	35,747
Expenses:
Expenses allocated from the Master		1,123	47,578	125,277	161,938
Clearing fees related to direct investments		19,584		19,584
Ongoing selling agent fees		120,393	111,135	412,231	369,372
Management fees		90,832	83,889	311,353	276,682
General Partner fees		60,555	55,926	207,569	184,456
Professional fees		81,247	110,731	167,644	274,433
Total expenses		373,734	409,259	1,243,658	1,266,881
Expenses borne by the General Partner		(49,074)		(122,242)
Net expenses		324,660	409,259	1,121,416	1,266,881
Net investment loss		(259,472)	(397,131)	(983,969)	(1,231,134)
Net gains (losses) on trading of commodity interests and investment in the Master:
Net realized gains (losses) on closed contracts		387,116		387,116
Net realized gains (losses) on closed contracts allocated from the Master		(1,282,443)	(44,907)	(903,323)	(1,772,295)
Net change in unrealized gains (losses) on open contracts		172,831		172,831
Net change in unrealized gains (losses) on open contracts allocated from the Master		1,243,352	(613,239)	(252,646)	625,861
Total trading results		520,856	(658,146)	(596,022)	(1,146,434)
Net income (loss)		261,384	(1,055,277)	(1,579,991)	(2,377,568)
Class A [Member]
Net gains (losses) on trading of commodity interests and investment in the Master:
Net income (loss)		$ 257,544	$ (1,043,406)	$ (1,564,726)	$ (2,365,697)
Net asset value per Redeemable Unit		$ 1,273.20	$ 1,418.84	$ 1,273.20	$ 1,418.84
Net income (loss) per Redeemable Unit	[1]	$ 12.53	$ (74.15)	$ (75.52)	$ (152.19)
Weighted average Redeemable Units outstanding		18,593.8538	14,896.6471	20,835.7588	16,123.1340
Class Z [Member]
Net gains (losses) on trading of commodity interests and investment in the Master:
Net income (loss)		$ 3,840	$ (11,871)	$ (15,265)	$ (11,871)
Net asset value per Redeemable Unit		$ 874.48	$ 955.12	$ 874.48	$ 955.12
Net income (loss) per Redeemable Unit	[1]	$ 12.94	$ (44.88)	$ (38.02)	$ (44.88)
Weighted average Redeemable Units outstanding		296.6740	264.5080	377.5004	264.5080
[1]	Represents the change in net asset value per Redeemable Unit during the period.

Statements of Income and Expen6

Statements of Income and Expenses (Parenthetical) - shares	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Dec. 31, 2015
Net asset value per redeemable unit outstanding	18,060.7588	13,193.2218	13,768.2448	17,034.0864
Class A [Member]
Net asset value per redeemable unit outstanding	17,764.0848	12,965.3578	13,540.3808	17,034.0864
Class Z [Member]
Net asset value per redeemable unit outstanding	296.6740	227.8640	227.8640

Statements of Changes in Partne

Statements of Changes in Partners' Capital - USD ($)	Total	General Partner [Member]	Limited Partners [Member]	Class A [Member]	Class A [Member]General Partner [Member]	Class A [Member]Limited Partners [Member]	Class Z [Member]	Class Z [Member]General Partner [Member]
Partners' Capital, beginning of period at Dec. 31, 2015	$ 26,761,029			$ 26,761,029
Subscriptions		$ 264,508	$ 193,400			$ 193,400		$ 264,508
Redemptions		$ (324,508)	$ (5,087,608)		$ (289,508)	$ (5,087,608)		$ (35,000)
Net income (loss)	(2,377,568)			(2,365,697)			$ (11,871)
Partners' Capital, end of period at Sep. 30, 2016	$ 19,429,253			$ 19,211,616			$ 217,637
Partners' Capital, Redeemable Units, beginning of period at Dec. 31, 2015	17,034.0864			17,034.0864
Subscriptions, Redeemable Units		264.5080	128.0540			128.0540		264.5080
Redemptions, Redeemable Units		(229.2226)	(3,429.1810)		(192.5786)	(3,429.1810)		(36.6440)
Partners' Capital, Redeemable Units, end of period at Sep. 30, 2016	13,768.2448			13,540.3808			227.8640
Net income (loss)	$ (1,055,277)			$ (1,043,406)			$ (11,871)
Partners' Capital, end of period at Sep. 30, 2016	$ 19,429,253			$ 19,211,616			$ 217,637
Partners' Capital, Redeemable Units, end of period at Sep. 30, 2016	13,768.2448			13,540.3808			227.8640
Partners' Capital, beginning of period at Dec. 31, 2016	$ 17,694,545			$ 17,486,619			$ 207,926
Subscriptions		$ 181,777	$ 15,266,995			$ 15,266,995		$ 181,777
Redemptions		$ (115,002)	$ (8,571,647)			$ (8,571,647)		$ (115,002)
Net income (loss)	(1,579,991)			(1,564,726)			(15,265)
Partners' Capital, end of period at Sep. 30, 2017	$ 22,876,677			$ 22,617,241			$ 259,436
Partners' Capital, Redeemable Units, beginning of period at Dec. 31, 2016	13,193.2218			12,965.3578			227.8640
Subscriptions, Redeemable Units		199.2080	11,319.9380			11,319.9380		199.2080
Redemptions, Redeemable Units		(130.3980)	(6,521.2110)			(6,521.2110)		(130.3980)
Partners' Capital, Redeemable Units, end of period at Sep. 30, 2017	18,060.7588			17,764.0848			296.6740

Organization

Organization	9 Months Ended
	Sep. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	1. Organization: Potomac Futures Fund L.P. (the “Partnership”) is a limited partnership organized on March 14, 1997 under the partnership laws of the State of New York to engage, directly and 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. As of January 1, 2017, the General Partner became a wholly owned subsidiary of Morgan Stanley Domestic Holdings, Inc. (“MSD Holdings”). MSD Holdings is ultimately owned by Morgan Stanley. Morgan Stanley is a publicly held company whose shares are listed on the New York Stock Exchange. Morgan Stanley is engaged in various financial services and other businesses. Prior to January 1, 2017, the General Partner was a wholly-owned subsidiary of Morgan Stanley Smith Barney Holdings LLC. All trading decisions for the Partnership are made by Campbell & Company, LP (the “Advisor”). During the reporting periods ended September 30, 2017 and 2016, the Partnership’s and the Master’s (prior to its termination effective July 31, 2017) commodity broker was Morgan Stanley & Co. LLC (“MS&Co.”), a registered futures commission merchant. The Partnership also deposits, and the Master deposited, a portion of their cash in non-trading As of March 22, 2016, the Partnership began offering two classes of limited partnership interests, Class A Redeemable Units and Class Z Redeemable Units. All Redeemable Units issued prior to February 29, 2016 were deemed “Class A Redeemable Units.” The rights, liabilities, risks, and fees associated with investment in the Class A Redeemable Units were not changed. Class A and Class Z will each be referred to as a “Class” and collectively referred to as the “Classes.” Class A Redeemable Units are available to taxable U.S. individuals and institutions, U.S. tax exempt individuals and institutions, and non-U.S. On January 1, 2005, 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. Effective July 14, 2017, the Partnership fully redeemed its investment in the Master. As of July 17, 2017, all positions from the Master have been transferred to the Partnership and the Advisor commenced trading the Partnership’s assets directly pursuant to the Campbell Managed Futures Portfolio, a proprietary, systematic trading program. Consequently, the General Partner liquidated the Master, effective July 31, 2017. The units of the Master were used solely for accounting purposes and did not represent legally distinct units. Prior to the Master’s termination of operations on July 31, 2017, the Master permitted accounts managed by the Advisor using the Campbell Managed Futures Portfolio to invest together in one trading vehicle. The General Partner was also the general partner of the Master. Expenses to investors as a result of the investment in the Master, prior to the Partnership’s full redemption from the Master effective July 14, 2017, were approximately the same as expenses to investors as a result of the Partnership trading directly, and redemption rights were not affected. Generally, a limited partner in the Master (prior to its termination effective July 31, 2017) withdrew 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 had been made to the General Partner at least three days in advance of the Redemption Date. Such withdrawals were classified as a liability when the limited partner in the Master elected to redeem and informed the Master. However, a limited partner in the Master may have requested a withdrawal as of the end of any day if such request was received by the General Partner at least three days in advance of the proposed withdrawal day. The General Partner is not aware of any material changes to the trading program other than as discussed above during the fiscal quarter ended September 30, 2017. As of July 14, 2017 and as of December 31, 2016, the Partnership owned 100% of the Master, prior to the Partnership’s full redemption from the Master effective July 14, 2017. The performance of the Partnership was directly affected by the performance of the Master. The Partnership’s/Master’s trading of futures, forward, swap and option contracts, if applicable, on commodities are or were done primarily on U.S. and foreign commodity exchanges. The Partnership engages, and the Master engaged, in such trading through commodity brokerage accounts maintained with MS&Co. The Master had entered into a foreign exchange brokerage account agreement and a futures brokerage account agreement with MS&Co. The Partnership has also entered into a foreign exchange brokerage account agreement and a futures brokerage account agreement with MS&Co. The Partnership pays and, through its investment in the Master prior to full redemption from the Master effective July 14, 2017, paid 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 agent agreement with Morgan Stanley Wealth Management (as amended, the “Selling Agreement”). Pursuant to the Selling Agreement, Morgan Stanley Wealth Management receives a monthly ongoing selling agent fee equal to 2.0% per year of the Partnership’s adjusted month-end Effective January 1, 2017, the General Partner instituted a cap on the Partnership’s operating expenses such that the General Partner will be responsible for any such expenses to the extent they exceed 0.50% of the Partnership’s net assets in any calendar year. In July 2015, the General Partner delegated certain administrative functions to SS&C Technologies, Inc., a Delaware corporation, currently doing business as SS&C GlobeOp (the “Administrator”). Pursuant to a Master Services Agreement, the Administrator furnishes certain administrative, accounting, regulatory reporting, tax and other services as agreed from time to time. In addition, the Administrator maintains certain books and records of the Partnership. The cost of retaining the Administrator is allocated among the pools operated by the General Partner, including the Partnership.

Basis of Presentation and Summa

Basis of Presentation and Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2017
Accounting Policies [Abstract]
Basis of Presentation and Summary of Significant Accounting Policies	2. Basis of Presentation and Summary of Significant Accounting Policies: The accompanying financial statements and accompanying notes are unaudited but, in the opinion of the General Partner, include all adjustments, consisting only of normal recurring adjustments, necessary for a fair presentation of the Partnership’s financial condition at September 30, 2017, the results of its operations for the three and nine months ended September 30, 2017 and 2016 and the changes in partners’ capital for the nine months ended September 30, 2017 and 2016. 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. Profit Allocation. Statement of Cash Flows. “Statement of Cash Flows.” Partnership’s/Master’s Investments. All commodity interests of the Partnership, including derivative financial instruments and derivative commodity instruments, are held, and those of the Master were held, for trading purposes. The commodity interests for the Partnership/Master are or were recorded on the trade date and open contracts are or were recorded at fair value (as described in Note 5, “Fair Value Measurements”) at the measurement date. The Partnership’s/Master’s investments in commodity interests denominated in foreign currencies are or were translated into U.S. dollars at the exchange rates prevailing at the measurement date. Gains or losses for the Partnership/Master are or were realized when contracts are or were liquidated and are or were determined by using the first-in, first-out Partnership’s/Master’s Cash. Income Taxes. “Income Taxes,” “more-likely-than-not” more-likely-than-not Investment Company Status. 2013-08, “Financial Services—Investment Companies (Topic 946): Amendments to the Scope, Measurement and Disclosure Requirements” Net Income (Loss) per Redeemable Unit. “Financial Services – Investment Companies.” There have been no material changes with respect to the Partnership’s critical accounting policies as reported in the Partnership’s Annual Report on Form 10-K The Master’s Statement of Financial Condition and Condensed Schedule of Investments as of December 31, 2016 and Statements of Income and Expenses and Changes in Partners’ Capital for the three and nine months ended September 30, 2016 are presented below: CMF Campbell Master Fund L.P.* Statement of Financial Condition December 31, Assets: Equity in trading account: Unrestricted cash $ 14,519,501 Restricted cash 3,511,477 Net unrealized appreciation on open futures contracts 249,967 Net unrealized appreciation on open forward contracts 2,547 Total equity in trading account 18,283,492 Cash at bank 217 Total assets $ 18,283,709 Liabilities and Partners’ Capital: Liabilities: Accrued expenses: Professional fees $ 17,139 Total liabilities 17,139 Partners’ Capital: General Partner, 0.0000 Redeemable Units outstanding at December 31, 2016 - Limited Partners, 9,926.8021 Redeemable Units outstanding at December 31, 2016 18,266,570 Total partners’ capital (net asset value) 18,266,570 Total liabilities and partners’ capital $ 18,283,709 Net asset value per Redeemable Unit $ 1,840.13 * The Master was terminated July 31, 2017. CMF Campbell Master Fund L.P. Condensed Schedule of Investments December 31, 2016 Notional ($)/ Number of Contracts Fair Value % of Partners’ Futures Contracts Purchased Energy 40 $ 59,697 0.33 % Grains 13 (11,161 ) (0.06 ) Indices 281 114,302 0.63 Interest Rates U.S. 11 10,406 0.06 Interest Rates Non-U.S. 78 70,798 0.38 Metals 2 (2,825 ) (0.02 ) Softs 7 1,100 0.01 Total futures contracts purchased 242,317 1.33 Futures Contracts Sold Grains 99 53,525 0.29 Indices 47 (11,277 ) (0.06 ) Interest Rates U.S. 16 (5,343 ) (0.03 ) Interest Rates Non-U.S. 356 (29,776 ) (0.16 ) Livestock 16 (46,745 ) (0.26 ) Metals 7 3,150 0.02 Softs 29 44,116 0.24 Total futures contracts sold 7,650 0.04 Net unrealized appreciation on open futures contracts $ 249,967 1.37 % Unrealized Appreciation on Open Forward Contracts Currencies $ 27,027,226 $ 390,539 2.14 % Metals 23 28,842 0.16 Total unrealized appreciation on open forward contracts 419,381 2.30 Unrealized Depreciation on Open Forward Contracts Currencies $ 18,765,196 (247,055 ) (1.35 ) Metals 54 (169,779 ) (0.94 ) Total unrealized depreciation on open forward contracts (416,834 ) (2.29 ) Net unrealized appreciation on open forward contracts $ 2,547 0.01 % Potomac Futures Fund L.P. Notes to Financial Statements (Unaudited) CMF Campbell Master Fund L.P.** Statements of Income and Expenses and Changes in Partners’ Capital (Unaudited) Three Months Ended September 30, 2016 Nine Months Ended September 30, 2016 Investment Income: Interest income $ 12,128 $ 35,747 Expenses: Clearing fees 27,474 100,791 Professional fees 20,104 61,147 Total expenses 47,578 161,938 Net investment loss (35,450 ) (126,191 ) Trading Results: Net gains (losses) on trading of commodity interests: Net realized gains (losses) on closed contracts (44,907 ) (1,772,295 ) Net change in unrealized gains (losses) on open contracts (613,239 ) 625,861 Total trading results (658,146 ) (1,146,434 ) Net income (loss) (693,596 ) (1,272,625 ) Subscriptions - Limited Partners 170,000 193,400 Redemptions - Limited Partners (3,887,830 ) (6,028,773 ) Distribution of interest income to feeder fund (7,728 ) (20,166 ) Net increase (decrease) in Partners’ Capital (4,419,154 ) (7,128,164 ) Partners’ Capital, beginning of period 24,308,422 27,017,432 Partners’ Capital, end of period $ 19,889,268 $ 19,889,268 Net asset value per Redeemable Unit (10,417.6666 Redeemable Units outstanding at September 30, 2016) $ 1,909.19 $ 1,909.19 Net income (loss) per Redeemable Unit* $ (67.61 ) $ (111.56 ) Weighted average Redeemable Units outstanding 11,307.7469 12,330.6615 * Represents the change in net asset value per Redeemable Unit during the period before distribution of interest income to feeder fund. ** The three and nine months ended September 30, 2017 have not been presented due to the Master’s termination effective July 31, 2017.

Financial Highlights

Financial Highlights	9 Months Ended
	Sep. 30, 2017
Text Block [Abstract]
Financial Highlights	3. Financial Highlights: Financial highlights for the limited partner class as a whole for the three and nine months ended September 30, 2017 and 2016 were as follows: Class A Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 Per Redeemable Unit Performance (for a unit outstanding throughout the period): * Net realized and unrealized gains (losses) $ 26.40 $ (47.72 ) $ (28.63 ) $ (76.01 ) Net investment loss (13.87 ) (26.43 ) (46.89 ) (76.18 ) Increase (decrease) for the period 12.53 (74.15 ) (75.52 ) (152.19 ) Net asset value per Redeemable Unit, beginning of period 1,260.67 1,492.99 1,348.72 1,571.03 Net asset value per Redeemable Unit, end of period $ 1,273.20 $ 1,418.84 $ 1,273.20 $ 1,418.84 Three Months Ended Nine Months Ended September 30, September 30, 2017 2016 2017 2016 Ratios to Average Limited Partners’ Capital: ** Net investment loss *** (4.4 ) % (7.3 ) % (5.1 ) % (6.8 ) % Operating expenses before expenses borne by the General Partner and incentive fees 6.3 % 7.5 % 6.5 % 7.0 % Expenses borne by the General Partner (0.8 ) % - % (0.6 ) % - % Incentive fees - % - % - % - % Operating expenses after expenses borne by the General Partner and incentive fees 5.5 % 7.5 % 5.9 % 7.0 % Total return: Total return before incentive fees 1.0 % (5.0 ) % (5.6 ) % (9.7 ) % Incentive fees - % - % - % - % Total return after incentive fees 1.0 % (5.0 ) % (5.6 ) % (9.7 ) % * 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 (other than incentive fees). *** Interest income, including interest income allocated from the Master prior to the Partnership’s full redemption from the Master effective July 14, 2017, less total expenses. The above ratios and total return may vary for individual investors based on the timing of capital transactions during the period. Additionally, these ratios are calculated for the limited partner class using the limited partners’ share of income, expenses and average partners’ capital of the Partnership and include the income and expenses allocated from the Master prior to the Partnership’s full redemption from the Master effective July 14, 2017.

Trading Activities

Trading Activities	9 Months Ended
	Sep. 30, 2017
Brokers and Dealers [Abstract]
Trading Activities	4. Trading Activities: The Partnership was formed for the purpose of trading contracts in a variety of commodity interests, including derivative financial instruments and derivative commodity interests. Prior to its full redemption from the Master effective July 14, 2017, the Partnership invested 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 gave the Master, the legal right to net unrealized gains and losses on open futures and forward contracts. The Partnership nets, and the Master netted, for financial reporting purposes, the unrealized gains and losses on open futures and forward contracts in their respective Statements of Financial Condition as the criteria under ASC 210-20, “Balance Sheet,” Trading and transaction fees are based on the number of trades executed by the Advisor. All clearing fees paid to MS&Co. are directly charged to the Partnership and prior to the Partnership’s full redemption from the Master effective July 14, 2017, were borne by the Master and allocated to the Partnership. All of the commodity interests owned by the Partnership are, and by the Master were, held for trading purposes. The monthly average number of futures contracts traded by the Partnership/Master during the three months ended September 30, 2017 and 2016 were 1,240 and 1,164, respectively. The monthly average number of futures contracts traded by the Partnership/Master during the nine months ended September 30, 2017 and 2016 were 1,786 and 1,148, respectively. The monthly average number of metals forward contracts traded by the Partnership/Master during the three months ended September 30, 2017 and 2016 were 268 and 219, respectively. The monthly average number of metals forward contracts traded by the Partnership/Master during the nine months ended September 30, 2017 and 2016 were 277 and 279, respectively. The monthly average notional values of currency forward contracts traded by the Partnership/Master during the three months ended September 30, 2017 and 2016 were $167,088,539 and $205,968,375, respectively. The monthly average notional values of currency forward contracts traded by the Partnership/Master during the nine months ended September 30, 2017 and 2016 were $182,419,867 and $265,147,825, respectively. The following table summarizes the gross and net amounts relating to assets and liabilities of the Partnership’s derivatives and their offsetting subject to master netting arrangements or similar agreements as of September 30, 2017. September 30, 2017 Gross Amounts Recognized Gross Amounts Offset in the Statements of Financial Condition Amounts Presented in the Condition Gross Amounts Not Offset in the Statements of Financial Condition Net Financial Instruments Cash Collateral Received/ Pledged* Assets Futures $ 903,261 $ (297,166 ) $ 606,095 $ - $ - $ 606,095 Forwards 518,402 (518,402 ) - - - - Total assets $ 1,421,663 $ (815,568 ) $ 606,095 $ - $ - $ 606,095 Liabilities Futures $ (297,166 ) $ 297,166 $ - $ - $ - $ - Forwards (952,098 ) 518,402 (433,696 ) - - (433,696) Total liabilities $ (1,249,264 ) $ 815,568 $ (433,696 ) $ - $ - $ (433,696) Net fair value $ 172,399 * In the event of default by the Partnership, MS&Co., the Partnership’s commodity futures broker and the sole counterparty to the Partnership’s non-exchange-traded The following table summarizes the gross and net amounts relating to assets and liabilities of the Master’s derivatives and their offsetting subject to master netting arrangements or similar agreements as of December 31, 2016. Gross Amounts Recognized Gross Amounts Offset in the Statements of Financial Condition Amounts Presented in the Condition Gross Amounts Not Offset in the Statements of Financial Condition December 31, 2016 Financial Instruments Cash Collateral Received/ Pledged * Net Amount Assets Futures $ 460,215 $ (210,248 ) $ 249,967 $ - $ - $ 249,967 Forwards 419,381 (416,834 ) 2,547 - - 2,547 Total assets $ 879,596 $ (627,082 ) $ 252,514 $ - $ - $ 252,514 Liabilities Futures $ (210,248 ) $ 210,248 $ - $ - $ - $ - Forwards (416,834 ) 416,834 - - - - Total liabilities $ (627,082 ) $ 627,082 $ - $ - $ - $ - Net fair value $ 252,514 * * Prior to the Master’s termination of operations effective July 31, 2017, in the event of default by the Master, MS&Co., the Master’s commodity futures broker and the sole counterparty to the Master’s non-exchange-traded The following table indicates the gross fair values of derivative instruments of futures and forward contracts as separate assets and liabilities for the Partnership as of September 30, 2017. September 30, 2017 Assets Futures Contracts Energy $ 63,934 Grains 42,151 Indices 563,415 Interest Rates U.S. 57,031 Interest Rates Non-U.S. 81,586 Livestock 5,390 Metals 55,260 Softs 34,494 Total unrealized appreciation on open futures contracts 903,261 Liabilities Futures Contracts Energy (5,258 ) Grains (27,162 ) Indices (29,320 ) Interest Rates U.S. (8,594 ) Interest Rates Non-U.S. (197,745 ) Livestock (500 ) Metals (11,710 ) Softs (16,877 ) Total unrealized depreciation on open futures contracts (297,166 ) Net unrealized appreciation on open futures contracts $ 606,095 * Assets Forward Contracts Currencies $ 454,382 Metals 64,020 Total unrealized appreciation on open forward contracts 518,402 Liabilities Forward Contracts Currencies (780,266 ) Metals (171,832 ) Total unrealized depreciation on open forward contracts (952,098 ) Net unrealized depreciation on open forward contracts $ (433,696 ) ** * This amount is in “Net unrealized appreciation on open futures contracts” in the Partnership’s Statements of Financial Condition. ** This amount is in “Net unrealized depreciation on open forward contracts” in the Partnership’s Statements of Financial Condition. The following table indicates the gross fair values of derivative instruments of futures and forward contracts as separate assets and liabilities for the Master as of December 31, 2016. December 31, 2016 Assets Futures Contracts Energy $ 62,240 Grains 59,888 Indices 183,820 Interest Rates U.S. 11,328 Interest Rates Non-U.S. 80,031 Livestock 1,425 Metals 4,785 Softs 56,698 Total unrealized appreciation on open futures contracts 460,215 Liabilities Futures Contracts Energy (2,543 ) Grains (17,524 ) Indices (80,795 ) Interest Rates U.S. (6,265 ) Interest Rates Non-U.S. (39,009 ) Livestock (48,170 ) Metals (4,460 ) Softs (11,482 ) Total unrealized depreciation on open futures contracts (210,248 ) Net unrealized appreciation on open futures contracts $ 249,967 * Assets Forward Contracts Currencies $ 390,539 Metals 28,842 Total unrealized appreciation on open forward contracts 419,381 Liabilities Forward Contracts Currencies (247,055 ) Metals (169,779 ) Total unrealized depreciation on open forward contracts (416,834 ) Net unrealized appreciation on open forward contracts $ 2,547 ** * 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. The following table indicates the trading gains and losses, by market sector, on derivative instruments for the three and nine months ended September 30, 2017 and 2016, respectively. Three Months Ended September 30, Nine Months Ended September 30, Sector 2017 2016 2017 2016 Currencies $ 319,656 $ (393,503 ) $ (1,261,440 ) $ (571,879 ) Energy 5,224 (296,477 ) (1,083,423 ) (903,734 ) Grains (218,921 ) 344,095 (918,228 ) 369,826 Indices 910,147 (212,728 ) 4,095,808 (868,105 ) Interest Rates U.S. (57,730 ) (164,904 ) (426,733 ) (174,790 ) Interest Rates Non-U.S. 87,418 (128,118 ) (816,228 ) 1,468,275 Livestock (113,120 ) (74,221 ) (29,915 ) (107,641 ) Metals (210,118 ) 198,560 (72,995 ) (86,124 ) Softs (201,700 ) 69,150 (82,868 ) (272,262 ) Total $ 520,856 * $ (658,146 ) * $ (596,022 ) * $ (1,146,434 ) * * This amount is in “Total trading results” in the Partnership’s Statements of Income and Expenses and Changes in Partners’ Capital.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2017
Fair Value Disclosures [Abstract]
Fair Value Measurements	5. Fair Value Measurements: Partnership’s /Master’s Fair Value Measurements. The fair value of exchange-traded futures, option and forward contracts is determined by the various exchanges, and reflects the settlement price for each contract as of the close of business on the last business day of the reporting period. The fair value of foreign currency forward contracts is extrapolated on a forward basis from the spot prices quoted as of approximately 3:00 P.M. (E.T.) on the last business day of the reporting period from various exchanges. The fair value of non-exchange-traded The Partnership considers, and the Master considered, prices for exchange-traded commodity futures, forward, swap and option contracts to be based on unadjusted quoted prices in active markets for identical assets and liabilities (Level 1). The values of U.S. Treasury bills, non-exchange-traded Potomac Futures Fund L.P. September 30, 2017 Total Level 1 Level 2 Level 3 Assets Futures $ 903,261 $ 903,261 $ - $ - Forwards 518,402 64,020 454,382 - Total assets $ 1,421,663 $ 967,281 $ 454,382 $ - Liabilities Futures $ 297,166 $ 297,166 $ - $ - Forwards 952,098 171,832 780,266 - Total liabilities $ 1,249,264 $ 468,998 $ 780,266 $ - CMF Campbell Master Fund L.P. December 31, 2016 Total Level 1 Level 2 Level 3 Assets Futures $ 460,215 $ 460,215 $ - $ - Forwards 419,381 28,842 390,539 - Total assets $ 879,596 $ 489,057 $ 390,539 $ - Liabilities Futures $ 210,248 $ 210,248 $ - $ - Forwards 416,834 169,779 247,055 - Total liabilities $ 627,082 $ 380,027 $ 247,055 $ -

Financial Instrument Risks

Financial Instrument Risks	9 Months Ended
	Sep. 30, 2017
Investments, All Other Investments [Abstract]
Financial Instrument Risks	6. Financial Instrument Risks: In the normal course of business, the Partnership is, and was, through its investment in the Master prior to its full redemption effective July 14, 2017, party to financial instruments with off-balance-sheet over-the-counter Futures Contracts. Forward Foreign Currency Contracts. London Metals Exchange Forward Contracts. Market risk is the potential for changes in the value of the financial instruments traded by the Partnership/Master due to market changes, including interest and foreign exchange rate movements and fluctuations in commodity or security prices. The Partnership’s market risk is, and the Master’s market risk was, directly impacted by the volatility and liquidity in the markets in which the related underlying assets are traded. The Partnership is, and the Master was, exposed to a market risk equal to the value of futures and forward contracts purchased and unlimited liability on such contracts sold short. Credit risk is the possibility that a loss may occur due to the failure of a counterparty to perform according to the terms of a contract. The risk of loss in the event of a counterparty default for the Partnership is, and for the Master was, typically limited to the amounts recognized in the Statements of Financial Condition and is not for the Partnership, and was not for the Master, represented by the contract or notional amounts of the instruments. The risk of loss is for the Partnership, and was for the Master, reduced through the use of legally enforceable master netting agreements with counterparties that permit the Partnership, and permitted the Master, to offset unrealized gains and losses and other assets and liabilities with such counterparties upon the occurrence of certain events. The Partnership has, and the Master had, credit risk and concentration risk, as MS&Co. or an MS&Co. affiliate is or was the sole counterparty or broker with respect to the Partnership’s/Master’s assets. Credit risk with respect to exchange-traded The General Partner monitors and attempts for the Partnership, and monitored and attempted for the Master, 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 or had effective procedures for evaluating and limiting the credit and market risks to which the Partnership may be, and the Master may have been, subject. These monitoring systems generally allow and allowed the General Partner to statistically analyze actual trading results with risk-adjusted The risk to the limited partners that have purchased Redeemable Units is limited to the amount of their share of the Partnership’s net assets and undistributed profits. This limited liability is a result of the organization of the Partnership as a limited partnership under New York law. The majority of these financial instruments mature within one year of the inception date. However, due to the nature of the Partnership’s business, these instruments may not be held to maturity. In the ordinary course of business, the Partnership enters, and the Master entered, into contracts and agreements that contain or contained various representations and warranties and which provide or provided general indemnifications. The Partnership’s/Master’s maximum exposure under these arrangements cannot be determined, as this could include future claims that have not yet been made against the Partnership/Master. The Partnership considers, and the Master considered, the risk of any future obligation relating to these indemnifications to be remote.

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2017
Subsequent Events [Abstract]
Subsequent Events	7. Subsequent Events: The General Partner evaluates events that occur after the balance sheet date but before and up until financial statements are issued. The General Partner has assessed the subsequent events through the date the financial statements were issued and has determined that there were no subsequent events requiring adjustment to or disclosure in the financial statements.

Basis of Presentation and Sum15

Basis of Presentation and Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2017
Accounting Policies [Abstract]
Use of Estimates	Use of Estimates.
Profit Allocation	Profit Allocation.
Statement of Cash Flows	Statement of Cash Flows. “Statement of Cash Flows.”
Partnership's/Master's Investments	Partnership’s/Master’s Investments. All commodity interests of the Partnership, including derivative financial instruments and derivative commodity instruments, are held, and those of the Master were held, for trading purposes. The commodity interests for the Partnership/Master are or were recorded on the trade date and open contracts are or were recorded at fair value (as described in Note 5, “Fair Value Measurements”) at the measurement date. The Partnership’s/Master’s investments in commodity interests denominated in foreign currencies are or were translated into U.S. dollars at the exchange rates prevailing at the measurement date. Gains or losses for the Partnership/Master are or were realized when contracts are or were liquidated and are or were determined by using the first-in, first-out
Partnership's/Master's Cash	Partnership’s/Master’s Cash.
Income Taxes	Income Taxes. “Income Taxes,” “more-likely-than-not” more-likely-than-not
Investment Company Status	Investment Company Status. 2013-08, “Financial Services—Investment Companies (Topic 946): Amendments to the Scope, Measurement and Disclosure Requirements”
Net Income (Loss) per Redeemable Unit	Net Income (Loss) per Redeemable Unit. “Financial Services – Investment Companies.”

Basis of Presentation and Sum16

Basis of Presentation and Summary of Significant Accounting Policies (Tables) - CMF Campbell Master Fund L.P. [Member]	9 Months Ended
	Sep. 30, 2017
Statements of Financial Condition	CMF Campbell Master Fund L.P.* Statement of Financial Condition December 31, Assets: Equity in trading account: Unrestricted cash $ 14,519,501 Restricted cash 3,511,477 Net unrealized appreciation on open futures contracts 249,967 Net unrealized appreciation on open forward contracts 2,547 Total equity in trading account 18,283,492 Cash at bank 217 Total assets $ 18,283,709 Liabilities and Partners’ Capital: Liabilities: Accrued expenses: Professional fees $ 17,139 Total liabilities 17,139 Partners’ Capital: General Partner, 0.0000 Redeemable Units outstanding at December 31, 2016 - Limited Partners, 9,926.8021 Redeemable Units outstanding at December 31, 2016 18,266,570 Total partners’ capital (net asset value) 18,266,570 Total liabilities and partners’ capital $ 18,283,709 Net asset value per Redeemable Unit $ 1,840.13 * The Master was terminated July 31, 2017.
Condensed Schedule of Investments	CMF Campbell Master Fund L.P. Condensed Schedule of Investments December 31, 2016 Notional ($)/ Number of Contracts Fair Value % of Partners’ Futures Contracts Purchased Energy 40 $ 59,697 0.33 % Grains 13 (11,161 ) (0.06 ) Indices 281 114,302 0.63 Interest Rates U.S. 11 10,406 0.06 Interest Rates Non-U.S. 78 70,798 0.38 Metals 2 (2,825 ) (0.02 ) Softs 7 1,100 0.01 Total futures contracts purchased 242,317 1.33 Futures Contracts Sold Grains 99 53,525 0.29 Indices 47 (11,277 ) (0.06 ) Interest Rates U.S. 16 (5,343 ) (0.03 ) Interest Rates Non-U.S. 356 (29,776 ) (0.16 ) Livestock 16 (46,745 ) (0.26 ) Metals 7 3,150 0.02 Softs 29 44,116 0.24 Total futures contracts sold 7,650 0.04 Net unrealized appreciation on open futures contracts $ 249,967 1.37 % Unrealized Appreciation on Open Forward Contracts Currencies $ 27,027,226 $ 390,539 2.14 % Metals 23 28,842 0.16 Total unrealized appreciation on open forward contracts 419,381 2.30 Unrealized Depreciation on Open Forward Contracts Currencies $ 18,765,196 (247,055 ) (1.35 ) Metals 54 (169,779 ) (0.94 ) Total unrealized depreciation on open forward contracts (416,834 ) (2.29 ) Net unrealized appreciation on open forward contracts $ 2,547 0.01 %
Statements of Income and Expenses and Changes in Partners' Capital	CMF Campbell Master Fund L.P.** Statements of Income and Expenses and Changes in Partners’ Capital (Unaudited) Three Months Ended September 30, 2016 Nine Months Ended September 30, 2016 Investment Income: Interest income $ 12,128 $ 35,747 Expenses: Clearing fees 27,474 100,791 Professional fees 20,104 61,147 Total expenses 47,578 161,938 Net investment loss (35,450 ) (126,191 ) Trading Results: Net gains (losses) on trading of commodity interests: Net realized gains (losses) on closed contracts (44,907 ) (1,772,295 ) Net change in unrealized gains (losses) on open contracts (613,239 ) 625,861 Total trading results (658,146 ) (1,146,434 ) Net income (loss) (693,596 ) (1,272,625 ) Subscriptions - Limited Partners 170,000 193,400 Redemptions - Limited Partners (3,887,830 ) (6,028,773 ) Distribution of interest income to feeder fund (7,728 ) (20,166 ) Net increase (decrease) in Partners’ Capital (4,419,154 ) (7,128,164 ) Partners’ Capital, beginning of period 24,308,422 27,017,432 Partners’ Capital, end of period $ 19,889,268 $ 19,889,268 Net asset value per Redeemable Unit (10,417.6666 Redeemable Units outstanding at September 30, 2016) $ 1,909.19 $ 1,909.19 Net income (loss) per Redeemable Unit* $ (67.61 ) $ (111.56 ) Weighted average Redeemable Units outstanding 11,307.7469 12,330.6615 * Represents the change in net asset value per Redeemable Unit during the period before distribution of interest income to feeder fund. ** The three and nine months ended September 30, 2017 have not been presented due to the Master’s termination effective July 31, 2017.

Financial Highlights (Tables)

Financial Highlights (Tables)	9 Months Ended
	Sep. 30, 2017
Text Block [Abstract]
Financial Highlights	Financial highlights for the limited partner class as a whole for the three and nine months ended September 30, 2017 and 2016 were as follows: Class A Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 Per Redeemable Unit Performance (for a unit outstanding throughout the period): * Net realized and unrealized gains (losses) $ 26.40 $ (47.72 ) $ (28.63 ) $ (76.01 ) Net investment loss (13.87 ) (26.43 ) (46.89 ) (76.18 ) Increase (decrease) for the period 12.53 (74.15 ) (75.52 ) (152.19 ) Net asset value per Redeemable Unit, beginning of period 1,260.67 1,492.99 1,348.72 1,571.03 Net asset value per Redeemable Unit, end of period $ 1,273.20 $ 1,418.84 $ 1,273.20 $ 1,418.84 Three Months Ended Nine Months Ended September 30, September 30, 2017 2016 2017 2016 Ratios to Average Limited Partners’ Capital: ** Net investment loss *** (4.4 ) % (7.3 ) % (5.1 ) % (6.8 ) % Operating expenses before expenses borne by the General Partner and incentive fees 6.3 % 7.5 % 6.5 % 7.0 % Expenses borne by the General Partner (0.8 ) % - % (0.6 ) % - % Incentive fees - % - % - % - % Operating expenses after expenses borne by the General Partner and incentive fees 5.5 % 7.5 % 5.9 % 7.0 % Total return: Total return before incentive fees 1.0 % (5.0 ) % (5.6 ) % (9.7 ) % Incentive fees - % - % - % - % Total return after incentive fees 1.0 % (5.0 ) % (5.6 ) % (9.7 ) % * 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 (other than incentive fees). *** Interest income, including interest income allocated from the Master prior to the Partnership’s full redemption from the Master effective July 14, 2017, less total expenses.

Trading Activities (Tables)

Trading Activities (Tables)	9 Months Ended
	Sep. 30, 2017
Summary of Valuation of Investments	The following table summarizes the gross and net amounts relating to assets and liabilities of the Partnership’s derivatives and their offsetting subject to master netting arrangements or similar agreements as of September 30, 2017. September 30, 2017 Gross Amounts Recognized Gross Amounts Offset in the Statements of Financial Condition Amounts Presented in the Condition Gross Amounts Not Offset in the Statements of Financial Condition Net Financial Instruments Cash Collateral Received/ Pledged* Assets Futures $ 903,261 $ (297,166 ) $ 606,095 $ - $ - $ 606,095 Forwards 518,402 (518,402 ) - - - - Total assets $ 1,421,663 $ (815,568 ) $ 606,095 $ - $ - $ 606,095 Liabilities Futures $ (297,166 ) $ 297,166 $ - $ - $ - $ - Forwards (952,098 ) 518,402 (433,696 ) - - (433,696) Total liabilities $ (1,249,264 ) $ 815,568 $ (433,696 ) $ - $ - $ (433,696) Net fair value $ 172,399 * In the event of default by the Partnership, MS&Co., the Partnership’s commodity futures broker and the sole counterparty to the Partnership’s non-exchange-traded
Gross Fair Values of Derivative Instruments of Futures and Forward Contracts as Separate Assets and Liabilities	The following table indicates the gross fair values of derivative instruments of futures and forward contracts as separate assets and liabilities for the Partnership as of September 30, 2017. September 30, 2017 Assets Futures Contracts Energy $ 63,934 Grains 42,151 Indices 563,415 Interest Rates U.S. 57,031 Interest Rates Non-U.S. 81,586 Livestock 5,390 Metals 55,260 Softs 34,494 Total unrealized appreciation on open futures contracts 903,261 Liabilities Futures Contracts Energy (5,258 ) Grains (27,162 ) Indices (29,320 ) Interest Rates U.S. (8,594 ) Interest Rates Non-U.S. (197,745 ) Livestock (500 ) Metals (11,710 ) Softs (16,877 ) Total unrealized depreciation on open futures contracts (297,166 ) Net unrealized appreciation on open futures contracts $ 606,095 * Assets Forward Contracts Currencies $ 454,382 Metals 64,020 Total unrealized appreciation on open forward contracts 518,402 Liabilities Forward Contracts Currencies (780,266 ) Metals (171,832 ) Total unrealized depreciation on open forward contracts (952,098 ) Net unrealized depreciation on open forward contracts $ (433,696 ) ** * This amount is in “Net unrealized appreciation on open futures contracts” in the Partnership’s Statements of Financial Condition. ** This amount is in “Net unrealized depreciation on open forward contracts” in the Partnership’s Statements of Financial Condition.
Trading Gains and Losses, by Market Sector, on Derivative Instruments	The following table indicates the trading gains and losses, by market sector, on derivative instruments for the three and nine months ended September 30, 2017 and 2016, respectively. Three Months Ended September 30, Nine Months Ended September 30, Sector 2017 2016 2017 2016 Currencies $ 319,656 $ (393,503 ) $ (1,261,440 ) $ (571,879 ) Energy 5,224 (296,477 ) (1,083,423 ) (903,734 ) Grains (218,921 ) 344,095 (918,228 ) 369,826 Indices 910,147 (212,728 ) 4,095,808 (868,105 ) Interest Rates U.S. (57,730 ) (164,904 ) (426,733 ) (174,790 ) Interest Rates Non-U.S. 87,418 (128,118 ) (816,228 ) 1,468,275 Livestock (113,120 ) (74,221 ) (29,915 ) (107,641 ) Metals (210,118 ) 198,560 (72,995 ) (86,124 ) Softs (201,700 ) 69,150 (82,868 ) (272,262 ) Total $ 520,856 * $ (658,146 ) * $ (596,022 ) * $ (1,146,434 ) * * This amount is in “Total trading results” in the Partnership’s Statements of Income and Expenses and Changes in Partners’ Capital.
CMF Campbell Master Fund L.P. [Member]
Summary of Valuation of Investments	The following table summarizes the gross and net amounts relating to assets and liabilities of the Master’s derivatives and their offsetting subject to master netting arrangements or similar agreements as of December 31, 2016. Gross Amounts Recognized Gross Amounts Offset in the Statements of Financial Condition Amounts Presented in the Condition Gross Amounts Not Offset in the Statements of Financial Condition December 31, 2016 Financial Instruments Cash Collateral Received/ Pledged * Net Amount Assets Futures $ 460,215 $ (210,248 ) $ 249,967 $ - $ - $ 249,967 Forwards 419,381 (416,834 ) 2,547 - - 2,547 Total assets $ 879,596 $ (627,082 ) $ 252,514 $ - $ - $ 252,514 Liabilities Futures $ (210,248 ) $ 210,248 $ - $ - $ - $ - Forwards (416,834 ) 416,834 - - - - Total liabilities $ (627,082 ) $ 627,082 $ - $ - $ - $ - Net fair value $ 252,514 * * Prior to the Master’s termination of operations effective July 31, 2017, in the event of default by the Master, MS&Co., the Master’s commodity futures broker and the sole counterparty to the Master’s non-exchange-traded
Gross Fair Values of Derivative Instruments of Futures and Forward Contracts as Separate Assets and Liabilities	The following table indicates the gross fair values of derivative instruments of futures and forward contracts as separate assets and liabilities for the Master as of December 31, 2016. December 31, 2016 Assets Futures Contracts Energy $ 62,240 Grains 59,888 Indices 183,820 Interest Rates U.S. 11,328 Interest Rates Non-U.S. 80,031 Livestock 1,425 Metals 4,785 Softs 56,698 Total unrealized appreciation on open futures contracts 460,215 Liabilities Futures Contracts Energy (2,543 ) Grains (17,524 ) Indices (80,795 ) Interest Rates U.S. (6,265 ) Interest Rates Non-U.S. (39,009 ) Livestock (48,170 ) Metals (4,460 ) Softs (11,482 ) Total unrealized depreciation on open futures contracts (210,248 ) Net unrealized appreciation on open futures contracts $ 249,967 * Assets Forward Contracts Currencies $ 390,539 Metals 28,842 Total unrealized appreciation on open forward contracts 419,381 Liabilities Forward Contracts Currencies (247,055 ) Metals (169,779 ) Total unrealized depreciation on open forward contracts (416,834 ) Net unrealized appreciation on open forward contracts $ 2,547 ** * 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.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2017
Derivative Instrument Fair Value Based on Hierarchy	Potomac Futures Fund L.P. September 30, 2017 Total Level 1 Level 2 Level 3 Assets Futures $ 903,261 $ 903,261 $ - $ - Forwards 518,402 64,020 454,382 - Total assets $ 1,421,663 $ 967,281 $ 454,382 $ - Liabilities Futures $ 297,166 $ 297,166 $ - $ - Forwards 952,098 171,832 780,266 - Total liabilities $ 1,249,264 $ 468,998 $ 780,266 $ -
CMF Campbell Master Fund L.P. [Member]
Derivative Instrument Fair Value Based on Hierarchy	CMF Campbell Master Fund L.P. December 31, 2016 Total Level 1 Level 2 Level 3 Assets Futures $ 460,215 $ 460,215 $ - $ - Forwards 419,381 28,842 390,539 - Total assets $ 879,596 $ 489,057 $ 390,539 $ - Liabilities Futures $ 210,248 $ 210,248 $ - $ - Forwards 416,834 169,779 247,055 - Total liabilities $ 627,082 $ 380,027 $ 247,055 $ -

Organization - Additional Infor

Organization - Additional Information (Detail) - $ / shares	Jul. 14, 2017	Jan. 01, 2017	Dec. 31, 2016	Sep. 30, 2017	Jul. 01, 2016
Class Z [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Redeemable units per share					$ 1,000
Morgan Stanley Wealth Management [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Ongoing selling agent fee				2.00%
CMF Campbell Master Fund L.P. [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Percentage of Partnership owned	100.00%		100.00%
Minimum [Member] | General Partner [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Percentage of expenses to net assets to be covered by General Partner		0.50%

Basis of Presentation and Sum21

Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)	9 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Cash denominated in foreign currencies	$ 70,582
Cash denominated in foreign currencies, proceeds	71,013
Uncertain tax position	$ 0
CMF Campbell Master Fund L.P. [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Cash denominated in foreign currencies		$ 18,447
Cost of foreign currencies		$ 18,315
Earliest Tax Year [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Open tax year	2,013
Latest Tax Year [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Open tax year	2,016

Basis of Presentation and Sum22

Basis of Presentation and Summary of Significant Accounting Policies - Statements of Financial Condition (Detail) - USD ($)	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Jul. 01, 2016	Dec. 31, 2015
Equity in trading account:
Unrestricted cash	$ 17,688,018
Restricted cash	5,535,440
Net unrealized appreciation on open contracts	606,095
Total equity in trading account	23,829,553
Cash at bank	631	$ 217
Total assets	23,891,108	18,397,452
Accrued expenses:
Professional fees	69,912	114,608
Total liabilities	1,014,431	702,907
Partners' Capital:
Total partners' capital (net asset value)	22,876,677	17,694,545	$ 19,429,253		$ 26,761,029
Total liabilities and partners' capital	23,891,108	18,397,452
Futures [Member]
Equity in trading account:
Net unrealized appreciation on open contracts	$ 606,095
CMF Campbell Master Fund L.P. [Member]
Equity in trading account:
Unrestricted cash		14,519,501
Restricted cash		3,511,477
Net unrealized appreciation on open contracts		252,514
Total equity in trading account		18,283,492
Cash at bank		217
Total assets		18,283,709
Accrued expenses:
Professional fees		17,139
Total liabilities		17,139
Partners' Capital:
General Partner, 0.0000 Redeemable Units outstanding at December 31, 2016		0
Limited Partners, 9,926.8021 Redeemable Units outstanding at December 31, 2016		18,266,570
Total partners' capital (net asset value)		18,266,570	$ 19,889,268	$ 24,308,422	$ 27,017,432
Total liabilities and partners' capital		$ 18,283,709
Net asset value per Redeemable Unit		$ 1,840.13	$ 1,909.19
CMF Campbell Master Fund L.P. [Member] | Futures [Member]
Equity in trading account:
Net unrealized appreciation on open contracts		$ 249,967
CMF Campbell Master Fund L.P. [Member] | Forward Contracts [Member]
Equity in trading account:
Net unrealized appreciation on open contracts		$ 2,547

Basis of Presentation and Sum23

Basis of Presentation and Summary of Significant Accounting Policies - Statements of Financial Condition (Parenthetical) (Detail) - CMF Campbell Master Fund L.P. [Member]	Dec. 31, 2016shares
Condensed Financial Statements, Captions [Line Items]
General Partner, unit equivalents	0
Limited Partners, units outstanding	9,926.8021

Basis of Presentation and Sum24

Basis of Presentation and Summary of Significant Accounting Policies - Condensed Schedule of Investments (Detail)		Sep. 30, 2017USD ($)Derivative	Dec. 31, 2016USD ($)Derivative
Schedule of Investments [Line Items]
Investment in Master, at fair value	[1]		$ 18,270,979
Futures [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts		$ 606,095
Percentage of Partners' Capital		2.65%
Total unrealized appreciation on open contracts		$ 903,261
Total unrealized depreciation on open contracts		(297,166)
Futures [Member] | Contracts Purchased [Member]
Schedule of Investments [Line Items]
Investment in Master, at fair value		$ 363,228
Percentage of Partners' Capital		1.59%
Futures [Member] | Contracts Sold [Member]
Schedule of Investments [Line Items]
Investment in Master, at fair value		$ 242,867
Percentage of Partners' Capital		1.06%
Futures [Member] | Metals [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 55,260
Total unrealized depreciation on open contracts		$ (11,710)
Futures [Member] | Metals [Member] | Contracts Purchased [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		9
Investment in Master, at fair value		$ (9,730)
Percentage of Partners' Capital		(0.04%)
Futures [Member] | Metals [Member] | Contracts Sold [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		16
Investment in Master, at fair value		$ 53,280
Percentage of Partners' Capital		0.23%
Futures [Member] | Indices [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 563,415
Total unrealized depreciation on open contracts		$ (29,320)
Futures [Member] | Indices [Member] | Contracts Purchased [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		404
Investment in Master, at fair value		$ 527,675
Percentage of Partners' Capital		2.31%
Futures [Member] | Indices [Member] | Contracts Sold [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		8
Investment in Master, at fair value		$ 6,420
Percentage of Partners' Capital		0.03%
Futures [Member] | Interest Rates U.S. [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 57,031
Total unrealized depreciation on open contracts		$ (8,594)
Futures [Member] | Interest Rates U.S. [Member] | Contracts Purchased [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		3
Investment in Master, at fair value		$ (8,516)
Percentage of Partners' Capital		(0.04%)
Futures [Member] | Interest Rates U.S. [Member] | Contracts Sold [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		114
Investment in Master, at fair value		$ 56,953
Percentage of Partners' Capital		0.25%
Futures [Member] | Interest Rates Non-U.S. [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 81,586
Total unrealized depreciation on open contracts		$ (197,745)
Futures [Member] | Interest Rates Non-U.S. [Member] | Contracts Purchased [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		196
Investment in Master, at fair value		$ (182,973)
Percentage of Partners' Capital		(0.80%)
Futures [Member] | Interest Rates Non-U.S. [Member] | Contracts Sold [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		391
Investment in Master, at fair value		$ 66,814
Percentage of Partners' Capital		0.29%
Futures [Member] | Livestock [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 5,390
Total unrealized depreciation on open contracts		$ (500)
Futures [Member] | Livestock [Member] | Contracts Purchased [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		9
Investment in Master, at fair value		$ 4,890
Percentage of Partners' Capital		0.02%
Futures [Member] | Energy [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 63,934
Total unrealized depreciation on open contracts		$ (5,258)
Futures [Member] | Energy [Member] | Contracts Purchased [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		43
Investment in Master, at fair value		$ 50,996
Percentage of Partners' Capital		0.22%
Futures [Member] | Energy [Member] | Contracts Sold [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		37
Investment in Master, at fair value		$ 7,680
Percentage of Partners' Capital		0.03%
Futures [Member] | Grains [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 42,151
Total unrealized depreciation on open contracts		$ (27,162)
Futures [Member] | Grains [Member] | Contracts Purchased [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		20
Investment in Master, at fair value		$ (15,274)
Percentage of Partners' Capital		(0.07%)
Futures [Member] | Grains [Member] | Contracts Sold [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		73
Investment in Master, at fair value		$ 30,263
Percentage of Partners' Capital		0.13%
Futures [Member] | Softs [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 34,494
Total unrealized depreciation on open contracts		$ (16,877)
Futures [Member] | Softs [Member] | Contracts Purchased [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		2
Investment in Master, at fair value		$ (3,840)
Percentage of Partners' Capital		(0.01%)
Futures [Member] | Softs [Member] | Contracts Sold [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		80
Investment in Master, at fair value		$ 21,457
Percentage of Partners' Capital		0.10%
Forward Contracts [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts		$ (433,696)
Percentage of Partners' Capital		(1.90%)
Total unrealized appreciation on open contracts		$ 518,402
Total unrealized depreciation on open contracts		(952,098)
Forward Contracts [Member] | Metals [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		64,020
Total unrealized depreciation on open contracts		(171,832)
Forward Contracts [Member] | Currencies [Member]
Schedule of Investments [Line Items]
Notional		32,335,763
Total unrealized appreciation on open contracts		454,382
Notional		51,880,151
Total unrealized depreciation on open contracts		$ (780,266)
Forward Contracts [Member] | Unrealized Appreciation [Member]
Schedule of Investments [Line Items]
Percentage of Partners' Capital		2.26%
Forward Contracts [Member] | Unrealized Appreciation [Member] | Metals [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		68
Percentage of Partners' Capital		0.28%
Forward Contracts [Member] | Unrealized Appreciation [Member] | Currencies [Member]
Schedule of Investments [Line Items]
Percentage of Partners' Capital		1.98%
Unrealized Depreciation [Member] | Forward Contracts [Member]
Schedule of Investments [Line Items]
Percentage of Partners' Capital		(4.16%)
Unrealized Depreciation [Member] | Forward Contracts [Member] | Metals [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		30
Percentage of Partners' Capital		(0.75%)
Unrealized Depreciation [Member] | Forward Contracts [Member] | Currencies [Member]
Schedule of Investments [Line Items]
Percentage of Partners' Capital		(3.41%)
CMF Campbell Master Fund L.P. [Member] | Futures [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts			$ 249,967
Percentage of Partners' Capital			1.37%
Total unrealized appreciation on open contracts			$ 460,215
Total unrealized depreciation on open contracts			(210,248)
CMF Campbell Master Fund L.P. [Member] | Futures [Member] | Contracts Purchased [Member]
Schedule of Investments [Line Items]
Investment in Master, at fair value			$ 242,317
Percentage of Partners' Capital			1.33%
CMF Campbell Master Fund L.P. [Member] | Futures [Member] | Contracts Sold [Member]
Schedule of Investments [Line Items]
Investment in Master, at fair value			$ 7,650
Percentage of Partners' Capital			0.04%
CMF Campbell Master Fund L.P. [Member] | Futures [Member] | Metals [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts			$ 4,785
Total unrealized depreciation on open contracts			$ (4,460)
CMF Campbell Master Fund L.P. [Member] | Futures [Member] | Metals [Member] | Contracts Purchased [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative			2
Investment in Master, at fair value			$ (2,825)
Percentage of Partners' Capital			(0.02%)
CMF Campbell Master Fund L.P. [Member] | Futures [Member] | Metals [Member] | Contracts Sold [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative			7
Investment in Master, at fair value			$ 3,150
Percentage of Partners' Capital			0.02%
CMF Campbell Master Fund L.P. [Member] | Futures [Member] | Indices [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts			$ 183,820
Total unrealized depreciation on open contracts			$ (80,795)
CMF Campbell Master Fund L.P. [Member] | Futures [Member] | Indices [Member] | Contracts Purchased [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative			281
Investment in Master, at fair value			$ 114,302
Percentage of Partners' Capital			0.63%
CMF Campbell Master Fund L.P. [Member] | Futures [Member] | Indices [Member] | Contracts Sold [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative			47
Investment in Master, at fair value			$ (11,277)
Percentage of Partners' Capital			(0.06%)
CMF Campbell Master Fund L.P. [Member] | Futures [Member] | Interest Rates U.S. [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts			$ 11,328
Total unrealized depreciation on open contracts			$ (6,265)
CMF Campbell Master Fund L.P. [Member] | Futures [Member] | Interest Rates U.S. [Member] | Contracts Purchased [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative			11
Investment in Master, at fair value			$ 10,406
Percentage of Partners' Capital			0.06%
CMF Campbell Master Fund L.P. [Member] | Futures [Member] | Interest Rates U.S. [Member] | Contracts Sold [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative			16
Investment in Master, at fair value			$ (5,343)
Percentage of Partners' Capital			(0.03%)
CMF Campbell Master Fund L.P. [Member] | Futures [Member] | Interest Rates Non-U.S. [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts			$ 80,031
Total unrealized depreciation on open contracts			$ (39,009)
CMF Campbell Master Fund L.P. [Member] | Futures [Member] | Interest Rates Non-U.S. [Member] | Contracts Purchased [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative			78
Investment in Master, at fair value			$ 70,798
Percentage of Partners' Capital			0.38%
CMF Campbell Master Fund L.P. [Member] | Futures [Member] | Interest Rates Non-U.S. [Member] | Contracts Sold [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative			356
Investment in Master, at fair value			$ (29,776)
Percentage of Partners' Capital			(0.16%)
CMF Campbell Master Fund L.P. [Member] | Futures [Member] | Livestock [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts			$ 1,425
Total unrealized depreciation on open contracts			$ (48,170)
CMF Campbell Master Fund L.P. [Member] | Futures [Member] | Livestock [Member] | Contracts Sold [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative			16
Investment in Master, at fair value			$ (46,745)
Percentage of Partners' Capital			(0.26%)
CMF Campbell Master Fund L.P. [Member] | Futures [Member] | Energy [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts			$ 62,240
Total unrealized depreciation on open contracts			$ (2,543)
CMF Campbell Master Fund L.P. [Member] | Futures [Member] | Energy [Member] | Contracts Purchased [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative			40
Investment in Master, at fair value			$ 59,697
Percentage of Partners' Capital			0.33%
CMF Campbell Master Fund L.P. [Member] | Futures [Member] | Grains [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts			$ 59,888
Total unrealized depreciation on open contracts			$ (17,524)
CMF Campbell Master Fund L.P. [Member] | Futures [Member] | Grains [Member] | Contracts Purchased [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative			13
Investment in Master, at fair value			$ (11,161)
Percentage of Partners' Capital			(0.06%)
CMF Campbell Master Fund L.P. [Member] | Futures [Member] | Grains [Member] | Contracts Sold [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative			99
Investment in Master, at fair value			$ 53,525
Percentage of Partners' Capital			0.29%
CMF Campbell Master Fund L.P. [Member] | Futures [Member] | Softs [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts			$ 56,698
Total unrealized depreciation on open contracts			$ (11,482)
CMF Campbell Master Fund L.P. [Member] | Futures [Member] | Softs [Member] | Contracts Purchased [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative			7
Investment in Master, at fair value			$ 1,100
Percentage of Partners' Capital			0.01%
CMF Campbell Master Fund L.P. [Member] | Futures [Member] | Softs [Member] | Contracts Sold [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative			29
Investment in Master, at fair value			$ 44,116
Percentage of Partners' Capital			0.24%
CMF Campbell Master Fund L.P. [Member] | Forward Contracts [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts			$ 2,547
Percentage of Partners' Capital			0.01%
Total unrealized appreciation on open contracts			$ 419,381
Total unrealized depreciation on open contracts			(416,834)
CMF Campbell Master Fund L.P. [Member] | Forward Contracts [Member] | Metals [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts			28,842
Total unrealized depreciation on open contracts			(169,779)
CMF Campbell Master Fund L.P. [Member] | Forward Contracts [Member] | Currencies [Member]
Schedule of Investments [Line Items]
Notional			27,027,226
Total unrealized appreciation on open contracts			390,539
Notional			18,765,196
Total unrealized depreciation on open contracts			$ (247,055)
CMF Campbell Master Fund L.P. [Member] | Forward Contracts [Member] | Unrealized Appreciation [Member]
Schedule of Investments [Line Items]
Percentage of Partners' Capital			2.30%
CMF Campbell Master Fund L.P. [Member] | Forward Contracts [Member] | Unrealized Appreciation [Member] | Metals [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative			23
Percentage of Partners' Capital			0.16%
CMF Campbell Master Fund L.P. [Member] | Forward Contracts [Member] | Unrealized Appreciation [Member] | Currencies [Member]
Schedule of Investments [Line Items]
Percentage of Partners' Capital			2.14%
CMF Campbell Master Fund L.P. [Member] | Unrealized Depreciation [Member] | Forward Contracts [Member]
Schedule of Investments [Line Items]
Percentage of Partners' Capital			(2.29%)
CMF Campbell Master Fund L.P. [Member] | Unrealized Depreciation [Member] | Forward Contracts [Member] | Metals [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative			54
Percentage of Partners' Capital			(0.94%)
CMF Campbell Master Fund L.P. [Member] | Unrealized Depreciation [Member] | Forward Contracts [Member] | Currencies [Member]
Schedule of Investments [Line Items]
Percentage of Partners' Capital			(1.35%)
[1]	Defined in Note 1.

Basis of Presentation and Sum25

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, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Investment Income:
Interest income	$ 44,542		$ 44,542
Expenses:
Clearing fees	19,584		19,584
Professional fees	81,247	$ 110,731	167,644	$ 274,433
Total expenses	373,734	409,259	1,243,658	1,266,881
Net investment loss	(259,472)	(397,131)	(983,969)	(1,231,134)
Net gains (losses) on trading of commodity interests:
Net realized gains (losses) on closed contracts	(1,282,443)	(44,907)	(903,323)	(1,772,295)
Net change in unrealized gains (losses) on open contracts	1,243,352	(613,239)	(252,646)	625,861
Total trading results	520,856	(658,146)	(596,022)	(1,146,434)
Net income (loss)	261,384	(1,055,277)	(1,579,991)	(2,377,568)
Partners' Capital, beginning of period			17,694,545	26,761,029
Partners' Capital, end of period	$ 22,876,677	19,429,253	22,876,677	19,429,253
CMF Campbell Master Fund L.P. [Member]
Investment Income:
Interest income		12,128		35,747
Expenses:
Clearing fees		27,474		100,791
Professional fees		20,104		61,147
Total expenses		47,578		161,938
Net investment loss		(35,450)		(126,191)
Net gains (losses) on trading of commodity interests:
Net realized gains (losses) on closed contracts		(44,907)		(1,772,295)
Net change in unrealized gains (losses) on open contracts		(613,239)		625,861
Total trading results		(658,146)		(1,146,434)
Net income (loss)		(693,596)		(1,272,625)
Subscriptions - Limited Partners		170,000		193,400
Redemptions - Limited Partners		(3,887,830)		(6,028,773)
Distribution of interest income to feeder fund		(7,728)		(20,166)
Net increase (decrease) in Partners' Capital		(4,419,154)		(7,128,164)
Partners' Capital, beginning of period		24,308,422	$ 18,266,570	27,017,432
Partners' Capital, end of period		$ 19,889,268		$ 19,889,268
Net asset value per Redeemable Unit (10,417.6666 Redeemable Units outstanding at September 30, 2016)		$ 1,909.19		$ 1,909.19	$ 1,840.13
Net income (loss) per Redeemable Unit		$ (67.61)		$ (111.56)
Weighted average Redeemable Units outstanding		11,307.7469		12,330.6615

Basis of Presentation and Sum26

Basis of Presentation and Summary of Significant Accounting Policies - Statements of Income and Expenses and Changes in Partners' Capital (Parenthetical) (Detail) - shares	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Dec. 31, 2015
Condensed Financial Statements, Captions [Line Items]
Net asset value per redeemable unit outstanding	18,060.7588	13,193.2218	13,768.2448	17,034.0864
CMF Campbell Master Fund L.P. [Member]
Condensed Financial Statements, Captions [Line Items]
Net asset value per redeemable unit outstanding			10,417.6666

Financial Highlights - Financia

Financial Highlights - Financial Highlights for Limited Partner Class (Detail) - Class A [Member] - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Per Redeemable Unit Performance (for a unit outstanding throughout the period):
Net asset value per Redeemable Unit, beginning of period			$ 1,348.72
Net asset value per Redeemable Unit, end of period	$ 1,273.20	$ 1,418.84	1,273.20	$ 1,418.84
Limited Partners [Member]
Per Redeemable Unit Performance (for a unit outstanding throughout the period):
Net realized and unrealized gains (losses)	26.40	(47.72)	(28.63)	(76.01)
Net investment loss	(13.87)	(26.43)	(46.89)	(76.18)
Increase (decrease) for the period	12.53	(74.15)	(75.52)	(152.19)
Net asset value per Redeemable Unit, beginning of period	1,260.67	1,492.99	1,348.72	1,571.03
Net asset value per Redeemable Unit, end of period	$ 1,273.20	$ 1,418.84	$ 1,273.20	$ 1,418.84
Ratios to Average Limited Partners' Capital:
Net investment loss	(4.40%)	(7.30%)	(5.10%)	(6.80%)
Operating expenses before expenses borne by the General Partner and incentive fees	6.30%	7.50%	6.50%	7.00%
Expenses borne by the General Partner	(0.80%)		(0.60%)
Incentive fees	0.00%	0.00%	0.00%	0.00%
Operating expenses after expenses borne by the General Partner and incentive fees	5.50%	7.50%	5.90%	7.00%
Total return:
Total return before incentive fees	1.00%	(5.00%)	(5.60%)	(9.70%)
Incentive fees	(0.00%)	(0.00%)	(0.00%)	(0.00%)
Total return after incentive fees	1.00%	(5.00%)	(5.60%)	(9.70%)

Trading Activities - Additional

Trading Activities - Additional Information (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2017USD ($)Contract	Sep. 30, 2016USD ($)Contract	Sep. 30, 2017USD ($)Contract	Sep. 30, 2016USD ($)Contract
Trading Activity, Gains and Losses, Net [Line Items]
Monthly average number of futures contracts traded	1,240		1,786
Monthly average number of metals forward contracts traded	268		277
CMF Campbell Master Fund L.P. [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Monthly average number of futures contracts traded		1,164		1,148
Monthly average number of metals forward contracts traded		219		279
Forward Contracts [Member] | Currencies [Member] | Weighted Average [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Average notional values of currency forward contracts | $	$ 167,088,539		$ 182,419,867
Forward Contracts [Member] | CMF Campbell Master Fund L.P. [Member] | Currencies [Member] | Weighted Average [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Average notional values of currency forward contracts | $		$ 205,968,375		$ 265,147,825

Trading Activities - Summary of

Trading Activities - Summary of Valuation of Investments (Detail) - USD ($)	Sep. 30, 2017	Dec. 31, 2016
Derivative [Line Items]
Gross Amounts Recognized, Assets	$ 1,421,663
Gross Amounts Offset in the Statements of Financial Condition, Assets	(815,568)
Amounts Presented in the Statements of Financial Condition, Assets	606,095
Financial Instruments, Assets	0
Collateral Received/Pledged, Assets	0
Net Amount, Assets	606,095
Gross Amounts Recognized, Liabilities	(1,249,264)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	815,568
Amounts Presented in the Statements of Financial Condition, Liabilities	(433,696)
Financial Instruments, Liabilities	0
Collateral Received/Pledged, Liabilities	0
Net Amount, Liabilities	(433,696)
Net fair value	172,399	$ 252,514
Futures [Member]
Derivative [Line Items]
Gross Amounts Recognized, Assets	903,261
Gross Amounts Offset in the Statements of Financial Condition, Assets	(297,166)
Amounts Presented in the Statements of Financial Condition, Assets	606,095
Financial Instruments, Assets	0
Collateral Received/Pledged, Assets	0
Net Amount, Assets	606,095
Gross Amounts Recognized, Liabilities	(297,166)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	297,166
Financial Instruments, Liabilities	0
Collateral Received/Pledged, Liabilities	0
Forward Contracts [Member]
Derivative [Line Items]
Gross Amounts Recognized, Assets	518,402
Gross Amounts Offset in the Statements of Financial Condition, Assets	(518,402)
Financial Instruments, Assets	0
Collateral Received/Pledged, Assets	0
Gross Amounts Recognized, Liabilities	(952,098)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	518,402
Amounts Presented in the Statements of Financial Condition, Liabilities	(433,696)
Financial Instruments, Liabilities	0
Collateral Received/Pledged, Liabilities	0
Net Amount, Liabilities	$ (433,696)
CMF Campbell Master Fund L.P. [Member]
Derivative [Line Items]
Gross Amounts Recognized, Assets		879,596
Gross Amounts Offset in the Statements of Financial Condition, Assets		(627,082)
Amounts Presented in the Statements of Financial Condition, Assets		252,514
Financial Instruments, Assets		0
Collateral Received/Pledged, Assets		0
Net Amount, Assets		252,514
Gross Amounts Recognized, Liabilities		(627,082)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities		627,082
Financial Instruments, Liabilities		0
Collateral Received/Pledged, Liabilities		0
CMF Campbell Master Fund L.P. [Member] | Futures [Member]
Derivative [Line Items]
Gross Amounts Recognized, Assets		460,215
Gross Amounts Offset in the Statements of Financial Condition, Assets		(210,248)
Amounts Presented in the Statements of Financial Condition, Assets		249,967
Financial Instruments, Assets		0
Collateral Received/Pledged, Assets		0
Net Amount, Assets		249,967
Gross Amounts Recognized, Liabilities		(210,248)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities		210,248
Financial Instruments, Liabilities		0
Collateral Received/Pledged, Liabilities		0
CMF Campbell Master Fund L.P. [Member] | Forward Contracts [Member]
Derivative [Line Items]
Gross Amounts Recognized, Assets		419,381
Gross Amounts Offset in the Statements of Financial Condition, Assets		(416,834)
Amounts Presented in the Statements of Financial Condition, Assets		2,547
Financial Instruments, Assets		0
Collateral Received/Pledged, Assets		0
Net Amount, Assets		2,547
Gross Amounts Recognized, Liabilities		(416,834)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities		416,834
Financial Instruments, Liabilities		0
Collateral Received/Pledged, Liabilities		$ 0

Trading Activities - Gross Fair

Trading Activities - Gross Fair Values of Derivative Instruments of Futures and Forward Contracts as Separate Assets and Liabilities (Detail) - USD ($)	Sep. 30, 2017	Dec. 31, 2016
Futures [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	$ 903,261
Total unrealized depreciation on open contracts	(297,166)
Net unrealized appreciation (depreciation) on open contracts	606,095
Futures [Member] | Energy [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	63,934
Total unrealized depreciation on open contracts	(5,258)
Futures [Member] | Grains [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	42,151
Total unrealized depreciation on open contracts	(27,162)
Futures [Member] | Indices [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	563,415
Total unrealized depreciation on open contracts	(29,320)
Futures [Member] | Interest Rates U.S. [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	57,031
Total unrealized depreciation on open contracts	(8,594)
Futures [Member] | Interest Rates Non-U.S. [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	81,586
Total unrealized depreciation on open contracts	(197,745)
Futures [Member] | Livestock [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	5,390
Total unrealized depreciation on open contracts	(500)
Futures [Member] | Metals [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	55,260
Total unrealized depreciation on open contracts	(11,710)
Futures [Member] | Softs [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	34,494
Total unrealized depreciation on open contracts	(16,877)
Futures [Member] | CMF Campbell Master Fund L.P. [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts		$ 460,215
Total unrealized depreciation on open contracts		(210,248)
Net unrealized appreciation (depreciation) on open contracts		249,967
Futures [Member] | CMF Campbell Master Fund L.P. [Member] | Energy [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts		62,240
Total unrealized depreciation on open contracts		(2,543)
Futures [Member] | CMF Campbell Master Fund L.P. [Member] | Grains [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts		59,888
Total unrealized depreciation on open contracts		(17,524)
Futures [Member] | CMF Campbell Master Fund L.P. [Member] | Indices [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts		183,820
Total unrealized depreciation on open contracts		(80,795)
Futures [Member] | CMF Campbell Master Fund L.P. [Member] | Interest Rates U.S. [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts		11,328
Total unrealized depreciation on open contracts		(6,265)
Futures [Member] | CMF Campbell Master Fund L.P. [Member] | Interest Rates Non-U.S. [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts		80,031
Total unrealized depreciation on open contracts		(39,009)
Futures [Member] | CMF Campbell Master Fund L.P. [Member] | Livestock [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts		1,425
Total unrealized depreciation on open contracts		(48,170)
Futures [Member] | CMF Campbell Master Fund L.P. [Member] | Metals [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts		4,785
Total unrealized depreciation on open contracts		(4,460)
Futures [Member] | CMF Campbell Master Fund L.P. [Member] | Softs [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts		56,698
Total unrealized depreciation on open contracts		(11,482)
Forward Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	518,402
Total unrealized depreciation on open contracts	(952,098)
Net unrealized appreciation (depreciation) on open contracts	(433,696)
Forward Contracts [Member] | Metals [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	64,020
Total unrealized depreciation on open contracts	(171,832)
Forward Contracts [Member] | Currencies [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	454,382
Total unrealized depreciation on open contracts	$ (780,266)
Forward Contracts [Member] | CMF Campbell Master Fund L.P. [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts		419,381
Total unrealized depreciation on open contracts		(416,834)
Net unrealized appreciation (depreciation) on open contracts		2,547
Forward Contracts [Member] | CMF Campbell Master Fund L.P. [Member] | Metals [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts		28,842
Total unrealized depreciation on open contracts		(169,779)
Forward Contracts [Member] | CMF Campbell Master Fund L.P. [Member] | Currencies [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts		390,539
Total unrealized depreciation on open contracts		$ (247,055)

Trading Activities - Trading Ga

Trading Activities - Trading Gains and Losses, by Market Sector, on Derivative Instruments (Detail) - CMF Campbell Master Fund L.P. [Member] - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Derivative [Line Items]
Trading gains and losses	$ 520,856	$ (658,146)	$ (596,022)	$ (1,146,434)
Currencies [Member]
Derivative [Line Items]
Trading gains and losses	319,656	(393,503)	(1,261,440)	(571,879)
Energy [Member]
Derivative [Line Items]
Trading gains and losses	5,224	(296,477)	(1,083,423)	(903,734)
Grains [Member]
Derivative [Line Items]
Trading gains and losses	(218,921)	344,095	(918,228)	369,826
Indices [Member]
Derivative [Line Items]
Trading gains and losses	910,147	(212,728)	4,095,808	(868,105)
Interest Rates U.S. [Member]
Derivative [Line Items]
Trading gains and losses	(57,730)	(164,904)	(426,733)	(174,790)
Interest Rates Non-U.S. [Member]
Derivative [Line Items]
Trading gains and losses	87,418	(128,118)	(816,228)	1,468,275
Livestock [Member]
Derivative [Line Items]
Trading gains and losses	(113,120)	(74,221)	(29,915)	(107,641)
Metals [Member]
Derivative [Line Items]
Trading gains and losses	(210,118)	198,560	(72,995)	(86,124)
Softs [Member]
Derivative [Line Items]
Trading gains and losses	$ (201,700)	$ 69,150	$ (82,868)	$ (272,262)

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail) - USD ($)	Sep. 30, 2017	Dec. 31, 2016
Fair Value Disclosures [Abstract]
Transfers of assets between Level 1 and Level 2	$ 0	$ 0
Transfers of liabilities between Level 1 and Level 2	$ 0	$ 0

Fair Value Measurements - Deriv

Fair Value Measurements - Derivative Instrument Fair Value Based on Hierarchy (Detail) - USD ($)	Sep. 30, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	$ 1,421,663
Derivative liabilities	1,249,264
Futures [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	903,261
Derivative liabilities	297,166
Forward Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	518,402
Derivative liabilities	952,098
CMF Campbell Master Fund L.P. [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		$ 879,596
Derivative liabilities		627,082
CMF Campbell Master Fund L.P. [Member] | Futures [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		460,215
Derivative liabilities		210,248
CMF Campbell Master Fund L.P. [Member] | Forward Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		419,381
Derivative liabilities		416,834
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	967,281
Derivative liabilities	468,998
Level 1 [Member] | Futures [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	903,261
Derivative liabilities	297,166
Level 1 [Member] | Forward Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	64,020
Derivative liabilities	171,832
Level 1 [Member] | CMF Campbell Master Fund L.P. [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		489,057
Derivative liabilities		380,027
Level 1 [Member] | CMF Campbell Master Fund L.P. [Member] | Futures [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		460,215
Derivative liabilities		210,248
Level 1 [Member] | CMF Campbell Master Fund L.P. [Member] | Forward Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		28,842
Derivative liabilities		169,779
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	454,382
Derivative liabilities	780,266
Level 2 [Member] | Forward Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	454,382
Derivative liabilities	$ 780,266
Level 2 [Member] | CMF Campbell Master Fund L.P. [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		390,539
Derivative liabilities		247,055
Level 2 [Member] | CMF Campbell Master Fund L.P. [Member] | Forward Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		390,539
Derivative liabilities		$ 247,055

Financial Instrument Risks - Ad

Financial Instrument Risks - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2017
Concentration Risk [Line Items]
Financial instruments maturity period	1 year
Credit Concentration Risk [Member] | Partnership's Contracts [Member] | Over the Counter [Member] | Minimum [Member]
Concentration Risk [Line Items]
Concentration risk percentage	34.90%
Credit Concentration Risk [Member] | Partnership's Contracts [Member] | Over the Counter [Member] | Maximum [Member]
Concentration Risk [Line Items]
Concentration risk percentage	61.10%