Accounting Policies [Abstract] Accounting Policies [Abstract] Accrued Liabilities [Abstract] Accrued expenses: Accrued Professional Fees Professional fees Agreements Disclosure [Text Block] Agreements Disclosure [Text Block] Agreements Allocated expense. Allocated Expense Expenses allocated from the Funds Amendment Flag Amendment Flag Arrangements and Non-arrangement Transactions [Domain] Arrangements and Non-arrangement Transactions [Domain] Assets Total Assets Total assets Assets [Abstract] Assets Assets: Assets, Fair Value Disclosure Total assets Basis of Accounting, Policy [Policy Text Block] Investment Company Status Basis of Presentation and Significant Accounting Policies [Text Block] Basis of Presentation and Summary of Significant Accounting Policies Brokerage Commission Payable Per Half Turn Brokerage Commission Payable Per Half Turn Brokerage commission payable per half turn Brokerage Commission Payable Per Round Turn Brokerage Commission Payable Per Round Turn Brokerage commission payable per round-turn Brokers and Dealers [Abstract] Brokers and Dealers [Abstract] Brokers and Dealers Disclosure [Text Block] Trading Activities Capital Unit, Class A [Member] Class A Redeemable Units [Member] Capital Unit, Class [Domain] Capital Unit, Class [Domain] Capital unit Class Z. Capital Unit Class Z [Member] Class Z Redeemable Units [Member] Capital Units by Class [Axis] Capital Units by Class [Axis] Cash Cash at bank (Note 1) Cash held in fund denominated in foreign currency. Cash Held In Fund Denominated In Foreign Currency Cash denominated in foreign currencies Cash held in fund denominated in foreign currency proceeds. Cash Held In Fund Denominated In Foreign Currency Proceeds Cash denominated in foreign currencies, proceeds Cash Segregated under Commodity Exchange Act Regulation Unrestricted cash (Note 3c) Class A Units [Member] Class A Units [Member] Class A Redeemable Units [Member] Class of Stock [Domain] Class of Stock [Domain] Clearance Fees Clearing fees related to direct investments (Note 3c) Expenses, Clearing Fees CMF FORT Contrarian Master Fund LLC. CMF FORT Contrarian Master Fund LLC [Member] CMF FORT Contrarian Master Fund LLC [Member] CMF TT II, LLC. C M F T T I I L L C [Member] CMF TT II, LLC [Member] CMF Willowbridge Master Fund L.P. CMF Willowbridge Master Fund LP [Member] CMF Willowbridge Master Fund L.P.[Member] CMF Winton Master Fund L.P. CMF Winton Master Fund LP [Member] CMF Winton Master L.P. [Member] Commissions Payable to Broker-Dealers and Clearing Organizations Ongoing selling agent fees (Notes 3d and 3e) Commodity [Member] Commodity [Member] Component Of Net Income Tax Assets And Liabilities [Line Items] Component Of Net Income Tax Assets And Liabilities [Line Items] Component Of Net Income Tax Assets And Liabilities [Line Items] Component Of Net Income Tax Assets And Liabilities [Table] Component Of Net Income Tax Assets And Liabilities [Table] Component Of Net Income Tax Assets And Liabilities [Table] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Concentration Risk [Line Items] Concentration Risk [Line Items] Concentration Risk, Percentage Concentration risk percentage Concentration Risk [Table] Concentration Risk [Table] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Contractors [Abstract] Contractors [Abstract] Contracts [Member] Contracts [Member] Partnership's/Funds' Contracts [Member] Credit Concentration Risk [Member] Credit Concentration Risk [Member] Current Fiscal Year End Date Current Fiscal Year End Date Debt instrument discount rate. Debt Instrument Discount Rate U.S. Treasury bill discount rate Derivative Asset, Fair Value, Gross Liability Gross Amounts Offset in the Statements of Financial Condition, Assets Derivative Asset, Notional Amount Unrealized Appreciation on Open Forward Contracts, Notional Amount Derivative Asset Net unrealized appreciation on open contracts Amounts Presented in the Statements of Financial Condition, Assets Derivative, Collateral, Obligation to Return Cash Cash Collateral Received/Pledged, Assets Derivative, Collateral, Obligation to Return Securities Financial Instruments, Assets Derivative, Collateral, Right to Reclaim Cash Cash Collateral Received/Pledged, Liabilities Derivative, Collateral, Right to Reclaim Securities Financial Instruments, Liabilities Derivative Asset, Fair Value, Gross Asset Gross Amounts Recognized, Assets Derivative Asset, Fair Value, Amount Offset Against Collateral Net Amount, Assets Derivative Liability, Fair Value, Gross Liability Gross Amounts Recognized, Liabilities Derivative Liability, Fair Value, Amount Offset Against Collateral Net Amount, Liabilities Derivative, Fair Value, Net Net fair value Derivative Financial Instruments, Assets [Member] Total Unrealized Appreciation on Open Contracts [Member] Derivative Financial Instruments, Liabilities [Member] Total Unrealized Depreciation on Open Contracts [Member] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Liability Amounts Presented in the Statements of Financial Condition, Liabilities Derivative Liability, Fair Value, Gross Asset Gross Amounts Offset in the Statements of Financial Condition, Liabilities Derivative Liability, Notional Amount Unrealized Depreciation on Open Forward Contracts, Notional Amount Derivative [Line Items] Derivative [Line Items] Derivative Monthly Average Notional Amount Derivative Monthly Average Notional Amount Average number of derivative contracts traded Derivative, Number of Instruments Held Derivative instruments held Derivative [Table] Derivative [Table] Derivative, Term of Contract Financial instruments maturity period Document and entity information. Document And Entity Information [Abstract] Document And Entity Information [Abstract] Document Fiscal Period Focus Document Fiscal Period Focus Document Fiscal Year Focus Document Fiscal Year Focus Document Information [Line Items] Document Information [Line Items] Document Information [Table] Document Information [Table] Document Period End Date Document Period End Date Document Type Document Type Earnings Per Share, Policy [Policy Text Block] Net Income (Loss) Per Redeemable Unit Energy. Energy [Member] Energy [Member] Entity Central Index Key Entity Central Index Key Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Current Reporting Status Entity Current Reporting Status Entity [Domain] Entity [Domain] Entity Emerging Growth Company Entity Emerging Growth Company Entity Filer Category Entity Filer Category Entity Public Float Entity Public Float Entity Registrant Name Entity Registrant Name Entity Shell Company Entity Shell Company Entity Small Business Entity Small Business Entity Voluntary Filers Entity Voluntary Filers Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Equity [Abstract] Equity [Abstract] Equity in trading account. Equity In Trading Account [Abstract] Equity in trading account: Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Asset Class [Domain] Asset Class [Domain] Asset Class [Axis] Asset Class [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Liability Class [Axis] Liability Class [Axis] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Fair Value, Inputs, Level 1 [Member] Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1) [Member] Fair Value, Inputs, Level 2 [Member] Significant Other Observable Inputs (Level 2) [Member] Fair Value, Inputs, Level 3 [Member] Significant Unobservable Inputs (Level 3) [Member] Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] Fair Value Measurement and Measurement Inputs, Recurring and Nonrecurring [Text Block] Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Partnership's and the Funds' Fair Value Measurements Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Financial Instrument [Axis] Financial Instrument [Axis] Financial Instruments Disclosure [Text Block] Financial Instrument Risks Floor Brokerage, Exchange and Clearance Fees Ongoing selling agent fees (Notes 3d and 3e) Foreign Exchange [Member] Currencies [Member] Forward Contracts [Member] Forward Contracts [Member] Future [Member] Futures Contracts [Member] Gain (Loss) on Derivative Instruments Held for Trading Purposes, Net Total trading results Gain (Loss) on Investments [Abstract] Net gains (losses) on trading of commodity interests and investment in the Funds: Gain (Loss) on Sale of Commodity Contracts Net realized gains (losses) on closed contracts General partner fees. General Partner Fees General Partner fees (Note 3a) General partner fees payable. General Partner Fees Payable General Partner fees (Note 3a) General Partner [Member] General Partner [Member] General Partners' Capital Account General Partner General Partners' Capital Account, Units Outstanding General Partner Capital, Redeemable units outstanding Grains. Grains [Member] Grains [Member] Harbor Selling Agreement. Harbor Selling Agreement [Member] Harbor Selling Agreement [Member] Incentive Fee Expense Incentive Fee Income Statement [Abstract] Income Statement [Abstract] Income Tax, Policy [Policy Text Block] Income Taxes Indices. Indices [Member] Indices [Member] Interest and Dividend Income, Operating Total investment income Interest Income, Operating Interest income Interest rates non-U.S. Interest Rates Non Us [Member] Interest Rates Non-U.S. [Member] Interest rates U.S. Interest Rates Us [Member] Interest Rates U.S. [Member] Interest Receivable Interest receivable (Note 3c) Investment [Axis] Investment [Axis] Investment Company [Abstract] Investment Company [Abstract] Investment Company, Expense Ratio after Incentive Allocation Total expenses Investment Company, Expense Ratio before Incentive Allocation Operating expense Investment Company, Financial Highlights [Line Items] Investment Company, Financial Highlights [Line Items] Investment Company, Financial Highlights [Table] Investment Company, Financial Highlights [Table] Investment Company, Financial Highlights [Table Text Block] Financial Highlights Investment Company, Financial Highlights [Text Block] Financial Highlights Investment Company, Financial Ratios [Abstract] Ratios to Average Limited Partners' Capital: Investment Company, Gain (Loss) on Investment, Per Share Net realized and unrealized gains (losses) Investment Company, Incentive Fee to Average Net Assets Incentive fees Incentive fees Investment Company, Investment Income (Loss) from Operations, Per Share Increase (decrease) for the year Investment Company, Investment Income (Loss) from Operations, Per Share [Abstract] Per Redeemable Unit Performance (for a unit outstanding throughout the year): Investment Company, Investment Income (Loss), Per Share Net investment loss Investment Company, Investment Income (Loss) Ratio Net investment loss Investment Company, Investment Owned, Investment Objective Investment Objective Investment Company, Investment Owned, Redemption Restriction Redemptions Permitted Investment Company, Total Return [Abstract] Total return: Investment Company, Total Return after Incentive Fees Total return after incentive fees Investment Company, Total Return before Incentive Fees Total return before incentive fees Investment [Domain] Investment [Domain] Investment Holding [Axis] Investment Holding [Axis] Investment Holding [Domain] Investment Holding [Domain] Investment Holdings [Abstract] Investment Holdings [Abstract] Investment Holdings [Abstract] Investment Holdings [Line Items] Investment Holdings [Line Items] Investment Holdings [Table] Investment Holdings [Table] Investment Holdings [Text Block] Investment in the Funds Investment Income, Interest Interest income allocated from the Funds Investment Income, Net Net Investment Income (Loss) Net investment loss Investment Income, Net [Abstract] Investment Income: Investment in funds. Investment In Funds [Member] Investment In Funds [Member] Investment [Line Items] Investment [Line Items] Investment Owned, at Fair Value Total investment in the Funds, Fair Value Fair Value Investment in the Funds(1), at fair value (Note 6) Investment Owned, Balance, Contracts Number of Contracts Investment owned percent. Investment Owned Percent Percentage owned by partnership Investment Owned, Percent of Net Assets % of Partners' Capital Investment Owned, Unrecognized Unrealized Appreciation Total unrealized appreciation on open contracts Unrealized Appreciation on Open Contracts Investment Owned, Unrecognized Unrealized Appreciation (Depreciation), Net Net unrealized appreciation (depreciation) on open contracts Net unrealized appreciation (depreciation) on open contracts Investment Owned, Unrecognized Unrealized Depreciation Total unrealized depreciation on open contracts Unrealized Depreciation on Open Contracts Investments, All Other Investments [Abstract] Investments, All Other Investments [Abstract] Investment [Table] Investment [Table] Investment Type [Axis] Investment Type [Axis] Investments [Domain] Investments [Domain] Legal Entity [Axis] Legal Entity [Axis] Liabilities Total Liabilities Total liabilities Liabilities [Abstract] Liabilities Liabilities: Liabilities and Equity Total liabilities and partners' capital Liabilities and Equity [Abstract] Liabilities and Partners' Capital: Financial and Nonfinancial Liabilities, Fair Value Disclosure Total liabilities Liability for Uncertainty in Income Taxes, Current Uncertain tax position Limited Partner [Member] Limited Partners [Member] Limited partners account redemption fees. Limited Partners Account Redemption Fees Fees charged to Limited Partners Limited Partners' Capital Account Limited Partners Limited Partners' Capital Account, Units Outstanding Limited Partners Capital, Redeemable units outstanding Liquidation Date, Expected to Complete Partnership liquidation date circumstance Livestock. Livestock [Member] Livestock [Member] Long [Member] Long [Member] Management Fee Expense Management fees Management fees (Note 3b) Carrying amount of the unpaid portion of the fee payable to the trading advisor. Management Fees Payable Management fees (Note 3b) Management fees payable annual percentage. Management Fees Payable Annual Percentage Percentage of management fee Maximum [Member] Maximum [Member] Maximum number of redeemable units sold by the partnership. Maximum Number Of Redeemable Units Sold By Partnership Maximum number of Redeemable Units sold by the Partnership Metals. Metals [Member] Metals [Member] Minimum [Member] Minimum [Member] Average number of derivative contracts traded. Monthly Average Number Of Derivative Contracts Traded Average number of derivative contracts traded Monthly general partner fee percentage. Monthly General Partner Fee Percentage Percentage of monthly General Partner fee Morgan Stanley and Company LLC [Member] Morgan Stanley and Company LLC [Member] MS&Co. [Member] Morgan stanley distribution Inc. Morgan Stanley Distribution Inc [Member] Morgan Stanley Distribution Inc [Member] Morgan Stanley Wealth Management [Member] Morgan Stanley Wealth Management [Member] Morgan Stanley Wealth Management [Member] Net Assets Value Per Unit Liquidation Circumstance Net Assets Value Per Unit Liquidation Circumstance Net asset value per unit liquidation circumstance Net Asset Value Per Share Net asset value per Redeemable Unit, end of year Net asset value per Redeemable Unit, beginning of year Net asset value per Redeemable Unit Net asset value per unit Net Asset Value Per Unit [Abstract] Net Asset Value Per Unit [Abstract] Net asset value per Redeemable Unit: Net Carrying Value Of Assets Liquidation Threshold Net Carrying Value Of Assets Liquidation Threshold Aggregate net assets of partnership liquidation threshold circumstance Net Income (Loss) Attributable to Parent Net income (loss) Net income (loss) Net Income (Loss), Per Outstanding Limited Partnership and General Partnership Unit, Basic and Diluted, Net of Tax Net income (loss) per Redeemable Unit (Note 8) Open Tax Year Open tax year Operating Expenses Total expenses Operating Expenses [Abstract] Expenses: Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Organization Over the Counter [Member] Over the Counter [Member] Partners' Capital Partners' Capital, end of period Partners' Capital, beginning of period Total Capital Total partners' capital (net asset value) Partners' Capital [Abstract] Partners' Capital (Notes 1 and 7): Partners' Capital Account, Private Placement of Units Subscriptions Partners' Capital Account, Redemptions Redemptions Partners' Capital Account, Units Partners' Capital, end of period Partners' Capital, beginning of period Partners' Capital Account, Units, Redeemed Redemptions - Redeemable Units Partners' Capital Account, Units, Sold in Private Placement Subscriptions - Redemptions Units Partners' Capital Notes Disclosure [Text Block] Subscriptions, Distributions and Redemptions Partnership Assets Allocated To Trading Advisor, Maximum Partnership Assets Allocated To Trading Advisor, Maximum Maximum amount of partnership assets allocated to trading advisor Partnerships investments. Partnership Investments [Policy Text Block] Partnership's Investment in the Funds Partnerships Cash [Policy Text Block] Partnerships Cash [Policy Text Block] Partnership's Cash Partnerships Funds Derivative Investments [Policy Text Block] Partnerships Funds Derivative Investments [Policy Text Block] Partnership's/Funds' Derivative Investments Partner Type [Axis] Partner Type [Axis] Partner Type of Partners' Capital Account, Name [Domain] Partner Type of Partners' Capital Account, Name [Domain] Percentage of certain distribution in exchange of partnership interest. Percentage Of Certain Distribution In Exchange Of Partnership Interest Percentage of partnership assets allocated Position [Axis] Position [Axis] Position [Domain] Position [Domain] Professional Fees Expenses, Professional Fees Professional fees Profit allocation policy. Profit Allocation Policy [Policy Text Block] Profit Allocation Quarterly incentive fee rate trading advisor. Quarterly Incentive Fee Rate Trading Advisor Incentive fee, quarterly trading profits basis Range [Axis] Range [Axis] Range [Domain] Range [Domain] Realized Investment Gains (Losses) Net realized gains (losses) on closed contracts allocated from the Funds Receivables from Brokers-Dealers and Clearing Organizations Redemptions receivable from the Funds Redemptions payable to limited partner. Redemptions Payable To Limited Partner Redemptions payable to Limited Partners (Note 7) Restricted Cash and Cash Equivalents Cash held for restricted cash requirements Restricted cash (Note 3c) Risks and Uncertainties [Abstract] Risks and Uncertainties [Abstract] Schedule of Derivative Instruments Included in Trading Activities [Table Text Block] Trading Gains and Losses by Market Sector on Derivative Instruments Traded Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Gross Fair Values of Derivative Instruments of Futures and Forward Contracts Traded Schedule of Derivative Instruments [Table Text Block] Summary of Gross and Net Amounts Recognized Relating to Assets and Liabilities of Partnership's Derivatives Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Summary of Assets and Liabilities Measured at Fair Value Schedule of Investments [Abstract] Schedule of Investments [Abstract] Schedule of Investments [Line Items] Schedule of Investments [Line Items] Schedule of Investments [Table] Schedule of Investments [Table] Schedule of partnerships investments in and operations of funds. Schedule Of Partnerships Investments In And Operations Of Funds [Table Text Block] Partnership's Investments in, and Partnership's Pro Rata Share of Results of Operations of Funds Schedule of Subsidiary of Limited Liability Company or Limited Partnership [Table] Schedule of Subsidiary of Limited Liability Company or Limited Partnership [Table] Schedule of summarized information reflecting assets liabilities and aggregate capital of funds. Schedule Of Summarized Information Reflecting Assets Liabilities And Aggregate Capital Of Funds [Table Text Block] Assets, Liabilities and Partners' Members' Capital of Funds Schedule of summarized information reflecting net investment income loss aggregate trading results and net income loss. Schedule Of Summarized Information Reflecting Net Investment Income Loss Aggregate Trading Results And Net Income Loss [Table Text Block] Net Investment Income (Loss), Trading Results and Net Income (Loss) of Funds Share Based Compensation Allocation Percentage Share Based Compensation Allocation Percentage Percentage of allocable share Short [Member] Short [Member] Softs. Softs [Member] Softs [Member] Class of Stock [Axis] Class of Stock [Axis] Statement [Line Items] Statement [Line Items] Statement Of Cash Flows Policy [Text Block] Statement Of Cash Flows [Policy Text Block] Statement of Cash Flows Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Statement of Partners' Capital [Abstract] Statement of Partners' Capital [Abstract] Statement [Table] Statement [Table] Subscriptions payable to the funds. Subscriptions Payable to Funds Subscriptions payable to the Funds Subsequent Events [Abstract] Subsequent Events [Abstract] Subsequent Events [Text Block] Subsequent Events Subsidiary of Limited Liability Company or Limited Partnership [Line Items] Subsidiary of Limited Liability Company or Limited Partnership [Line Items] Systematica Investments Limited [Member] Systematica Investments Limited [Member] Systematica Investments Limited [Member] Text Block [Abstract] Text Block [Abstract] Trading Activities, Gain and Losses, by Type, by Income Statement Location [Table] Trading Activities, Gain and Losses, by Type, by Income Statement Location [Table] Trading Activity [Axis] Trading Activity [Axis] Trading Activity, by Type [Domain] Trading Activity, by Type [Domain] Trading Activity, Gains and Losses, Net [Line Items] Trading Activity, Gains and Losses, Net [Line Items] Trading Gain (Loss) Income (Loss) Total trading results Total trading results Trading Securities, Equity Total equity in trading account Trading Symbol Trading Symbol Transaction [Domain] Transaction [Domain] Transaction Type [Axis] Transaction Type [Axis] Financial Instruments [Domain] Financial Instruments [Domain] Treasury Bill Maturity Period Treasury Bill Maturity Period U.S. Treasury bill maturity period Type of Arrangement and Non-arrangement Transactions [Axis] Type of Arrangement and Non-arrangement Transactions [Axis] Unrealized Gain (Loss) on Commodity Contracts Net change in unrealized gains (losses) on open contracts Unrealized Gain (Loss) on Investments Net change in unrealized gains (losses) on open contracts allocated from the Funds Use of Estimates, Policy [Policy Text Block] Use of Estimates Weighted Average Number of Limited Partnership and General Partnership Unit Outstanding, Basic and Diluted Weighted average Redeemable Units outstanding Willowbridge Associates Inc [Member] Willowbridge Associates Inc [Member] Willowbridge Associates Inc [Member] Yearly general partner fee percentage. Yearly General Partner Fee Percentage Percentage of General Partner fee