Consolidated Statements of Cash Flows (Unaudited) (USD $)	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Cash flows provided by operating activities
Net income (loss)	$ 5,476,983us-gaap_IncomeLossAttributableToParent	$ (8,384,583)us-gaap_IncomeLossAttributableToParent
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Net cash provided by operating activities	2,190,054	1,529,282
Cash flows used in financing activities
Subscriptions	734,544gaifb_ProceedsFromSubscriptions	1,462,800gaifb_ProceedsFromSubscriptions
Redemptions	(2,924,598)gaifb_PaymentsOfRedemptions	(2,992,082)gaifb_PaymentsOfRedemptions
Net cash used in financing activities	(2,190,054)	(1,529,282)
Net change in cash and cash equivalents	0	0
Cash and cash equivalents, beginning of period	0	0
Cash and cash equivalents, end of period	0	0
Graham Alternative Investment Trading LLC [Member]
Cash flows provided by operating activities
Net income (loss)	(5,476,983)	8,384,583
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Proceeds from sale of investments	2,924,598	2,992,082
Investments	$ (734,544)	$ (1,462,800)

Investments made in other funds.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes.

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The cash inflow associated with the sale of other investments not otherwise defined in the taxonomy.

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