Consolidated Statements of Financial Condition [Abstract] Capital Unit, Class [Domain] Capital Units by Class [Axis] Capital units, outstanding (in units) Cash and cash equivalents, beginning of year Cash and cash equivalents, end of year Cash and Cash Equivalents, at Carrying Value Net (loss) gain allocated from investments in other funds: Consolidated Statements of Operations [Abstract] Income Taxes Income Tax Disclosure [Text Block] Interest and other Total liabilities Liabilities Liabilities: Total liabilities and members' capital Liabilities and Equity Liabilities and members' capital Cash flows provided by financing activities Net cash used in operating activities Net Cash Provided by (Used in) Operating Activities Net change in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Incentive allocation Organization and Business Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Members' capital Members' capital Members' capital Partners' Capital Members' capital: Redemptions Partners' Capital Account, Redemptions Members' capital (in units) Members' capital (in units) Partners' Capital Account, Units Redemptions (in units) Partners' Capital Account, Units, Redeemed Capital Accounts [Abstract] Capital Accounts Partners' Capital Notes Disclosure [Text Block] Proceeds from sale of investments Fees and Related Party Transactions Related Party Transactions Disclosure [Text Block] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Sponsor fees Consolidated Statements of Cash Flows [Abstract] Consolidated Statements of Changes in Members' Capital Equity [Abstract] Statement of Partners' Capital [Abstract] Total assets Assets Investment income: Statement [Table] Assets Assets [Abstract] Statement [Line Items] Capital Unit, Class A [Member] Class 0 units [Member] Capital Unit, Class B [Member] Class 2 Units [Member] Net cash provided by financing activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations Net investment loss allocated from investments in other funds: Expenses: Total expenses Operating Expenses Cash flows used in operating activities Increase (Decrease) in Partners' Capital [Roll Forward] Increase (Decrease) in Partners' Capital [Roll Forward] Adjustments to reconcile net (loss) income to net cash used in operating activities: Net (loss) income Net (loss) income Net (loss) income Income (Loss) Attributable to Parent Organization and Business [Abstract] Income Taxes [Abstract] Subsequent Events Subsequent Events [Text Block] Summary of Significant Accounting Policies [Abstract] Fees and Related Party Transactions [Abstract] Subsequent Events [Abstract] Investment, at fair value Amendment Flag Current Fiscal Year End Date Document Period End Date Entity [Text Block] Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Filer Category Entity Registrant Name Entity Central Index Key Document Fiscal Year Focus Document Fiscal Period Focus Document Type Investment Contract Counterparty [Axis] Investment Contract Counterparty [Domain] Accrued redemptions Amounts due for shareholder redemptions at the end of the reporting period. Redemption receivable Amounts expected to be received for redemptions from investments at the end of the reporting period. Redemptions receivable Units issued Number of capital units issued. Capital units, issued (in units) Capital units, stated value The stated value of each capital unit per unit. Capital units, value (in dollars per unit) Realized gain (loss) allocated from investments in other funds This item represents the total realized gain (loss) allocated from investments in other funds Net realized (loss) gain on investments Unrealized gain loss allocated from investments in other funds This item represents the total unrealized gain (loss) allocated from investments in other funds Net (decrease) increase in unrealized appreciation on investments Net gain loss allocated from investments in other funds This item represents the net gain (loss) allocated from investments in other funds. Net (loss) gain allocated from investments in other funds Othernterest Income Other Interest income allocated from other funds. Interest income InvestmentAdvisoryFee Fees paid on services for investment advice, research and other services. Such services may include the investment management of mutual funds and separate accounts, and are generally based upon the size of the funds managed. Brokerage fees Management Fee Amount paid to the advisor for management of the day-to-day business functions of the LLC or LP including the fee rate, basis of calculation, relevant accounting period, whether the fee is paid to an entity other than the managing member or General Partner, or whether the fee is waived. Advisory fees Net Investment Loss Investment income (loss) net of operating and interest expense. Net investment loss allocated from investments in other funds Partners Capital Account Subscriptions Total change in each class of partners' capital accounts during the year due to subscriptions. All partners include general, limited and preferred partners. Subscriptions Partners Capital Account Subscribed The number of units subscribed during the year of each class of partners' capital account. Units represent shares of ownership of the general, limited, and preferred partners. Subscriptions (in units) Investments made in other funds Investments made in other funds. Investments Proceeds From Subscriptions The cash inflow from unit subscription activity during the reporting period. Subscriptions Payments Of Redemptions The cash outflow from unit redemption activity during the reporting period. Redemptions Financial Highlights [Text Block] The entire disclosure for entities' financial highlights. Financial Highlights Financial Highlights [Abstract] Graham Alternative Investment Trading LLC [Member] Graham Alternative Investment Trading II LLC [Member] Blended Strategies Portfolio [Member] Systematic Strategies Portfolio [Member] Total Blended Strategies Portfolio [Member] Total Systematic Strategies Portfolio [Member] Type of Portfolio [Axis] Portfolio, Name [Domain] Document And Entity Information [Abstract] Entities [Table] Class of Stock [Axis] Class of Stock [Domain] Common Class A [Member] Common Class B [Member] Entity Information [Line Items] Entity Common Stock, Shares Outstanding Entity Public Float